System for electrical energy production

FIELD: electricity.

SUBSTANCE: system includes a number of generator units (4a-6c) located in sea and a number of switchgear (1a-1c) located in sea. Each switchgear (1a-1c) is connected with a number of generator units (4a-6c). According to the invention, the system comprises a number of primary intermediate stations (17a-17c). It also includes at least one secondary intermediate station (19). Each primary intermediate station (17a-17c) is linked with a number of switchgears, and each secondary intermediate station (19) is connected with a number of primary intermediate stations (17a-17c). In addition, the secondary intermediate station is connected with on-land electrical network. The switching device (192) is available to ensure connection with different locations (193, 194, 195) of electrical network.

EFFECT: creation of system which is technically and economically compatible for supplying power to common electrical network.

28 cl, 6 dwg

 

The technical field to which the invention relates.

The present invention relates to a system for the generation of electric energy from renewable energy sources, the system comprising multiple generator units.

The invention also relates to an electrical network and the method of supplying energy to the electric network.

The expression "sea" in the present invention should be understood as a large inland lakes.

The level of technology

Wave motion in the sea and in large inland lakes are a potential source of energy, which is still hardly used. The same applies to underwater currents in the sea and the wind over the sea. Although it has been many different proposals for generator units using these renewable sources of energy for actuation of the generator, the amount of energy obtained in this way is negligible. The main reasons are economic. Problematic creation units of this type that are economically competitive. Typically, the power output of these units is very small. So you need a huge number of such units in order to achieve a substantial level of power that could compete with traditional energy sources, such as hydroenergy the ka, nuclear power and plant running on fossil fuels.

The problem of achieving economically competitive systems of energy production based on renewable energy sources is, on the one hand, the creation of efficient generating units with low costs and, on the other hand, in the development of an optimized system that can include a huge number of such generator units. The last aspect is crucial for the production and supply of energy in a large industrial scale for the electric power supply to the electrical network. The present invention focuses on this aspect.

Application WO 03/058055 reveals the wave power installation, comprising a linear generator. The installation is designed so that it effectively produces electrical energy at a relatively low cost. The literature also represents how many units can be connected with multiple distribution devices, each distribution device is connected with an intermediate station that supplies energy to a receiving station located on land. Thus, the paper presents a system that includes multiple generating units, the conclusions of which are summarized in the cable between temporarily the second station and is located on land receiving station. Therefore, the presented system is able to generate electrical energy from power, many times higher than the capacity of a single generator set. Typically a single unit provides a power level of 10 kW, and the system as a whole will be able to produce energy with a capacity of 300 kW.

However, in many cases this is not enough to achieve competitive energy supply. Then, the presented system is limited in supply specific places on land, which can be connected to the electrical network. The present invention is to provide a system for the generation of electric energy from renewable energy sources, which is technically and economically competitive to supply energy total electric network. Another objective is to provide a system which provides a high degree of flexibility in the supply network.

The invention

The number of tasks is solved by the fact that the system discussed type includes a specific indication that the system includes multiple primary intermediate stations and at least one secondary intermediate station, and each of the primary intermediate station connected with many of the mentioned distribution device is in, at least one secondary intermediate station connected with the many mentioned primary intermediate stations and located onshore electrical grid, and the system includes a switching device that allows selective connection of at least one secondary intermediate station with a variety of points of an electrical network.

The use of intermediate stations, at least two levels of cascading according to the invention makes it possible to build systems with a very large number of generator units so that the total output power of the system comes to a level sufficient to competitiveness, even when the flow of energy in the overall network. By connecting the secondary intermediate station about ten primary intermediate stations, connect each primary intermediate stations with approximately five distribution devices and connections of each switchgear about ten generating units of the power system output reaches the level of 5 MW, if each generating unit has a capacity of 10 kW.

Cascade enable, based on the principle of merging multiple generator units around the switchgear, the connection of many such switchgear p is Rechnoy intermediate station and connection of many such primary intermediate stations with secondary intermediate station has many advantages:

System of a very large number of generator units becomes very rational and structured through a cascade arrangement, which makes the system easily manageable and easier maintenance.

- If in the system there is an accident, the rest of the system will be able to work without crashing.

All of the switchgear can be almost identical, as all primary intermediate station, which ensures cost-effective production of these components.

Each of these components can be designed for very specific task, a specific power level and includes well-defined components, providing rational manufacture and maintenance thereof.

- Structural arrangement minimizes losses, because the cables and electrical current can be optimally adapted to each level of the system.

Thanks to such design that it can be connected with different parts of the electrical network, the system provides a high degree of flexibility.

The system according to the invention thus allows to generate electrical power from these renewable energy sources with high power and economically competitive mA is the headquarters and provides high flexibility.

According to a preferred variant implementation, the system includes many secondary intermediate stations connected with multiple primary intermediate stations.

Thus, the system is adapted to include an even greater number of generator units.

According to a further preferred variant implementation, the system includes a tertiary intermediate station, and tertiary intermediate station connected with many secondary intermediate stations.

This is a system where we finish step to the next level in the cascade arrangement. If the tertiary intermediate station is connected with eight secondary intermediate stations, power from the tertiary intermediate station is brought to the level of 40 MW. This implementation thus emphasizes the advantages of the above cascading in cases where there may be applied a large number of generator units.

According to a further preferred variant implementation, at least some of the primary intermediate stations are located in the sea.

According to a further preferred variant implementation, at least one of the secondary intermediate stations is located in the sea.

According to the further preferred variant implementation, tertiary intermediate station is also located in the sea.

The placement of the primary and, in some cases, secondary intermediate stations, and even tertiary intermediate stations at sea provides the use of the system for generating units, which are located far from the coast and serves electricity to land with the minimum number of cables. This increases the efficiency of the system. Typically, the energy derived from waves and wind, is more significant at large distances from the coast.

By placing stations in the sea primary intermediate stations can be located closer to the distribution device, and the secondary intermediate station is closer to the primary intermediate stations, etc. This arrangement minimizes losses.

According to a further preferred variant of the implementation of each distribution device includes a waterproof container, mounted on the bottom of the sea, and the container contains at least some of the components of the switchgear.

This offers a complete solution, where the distribution device can be mounted as standard modules using standard components. The container provides protection from the environment in which s.

According to a further preferred variant implementation, at least some of the primary intermediate stations and/or at least some of the secondary intermediate stations include a waterproof container, fixed to the bottom of the sea, and the container contains at least some of the components of the stations.

This implementation provides benefits relevant species, as those which are obtained by the arrangement of the switchgear in a similar way and which were described above.

According to a further preferred variant implementation, at least some of the generating units include devices driven waves.

Generating units driven by the waves to a greater extent than other alternatives represent a situation where the number of units is large, and the capacity of each unit is small. Since the system according to the present invention is particularly designed for such applications, its advantages are particularly advantageous when used for generator sets driven waves.

According to a further preferred variant implementation of the generator, at least, some generating units driven by alnami, represents a linear generator having a rotor with a reciprocating movement, comprising permanent magnets.

When the generator is driven waves, the use of a linear generator has the advantage that movement of the float on the sea surface can be used directly without converting the motion into rotational motion.

According to a further preferred variant implementation, at least some of the generating units represent the generators driven by wind or flowing water.

In many cases, preference is given to the application of the system for these types of energy sources or only one of these types, or to both, or, alternatively, in combination with generators driven by the waves.

According to a further preferred variant implementation, the system includes a rectifier to convert AC to DC (AC/DC) and/or inverters to convert DC to alternating current (DC/AC), and rectifiers/inverters are placed in the distribution devices and/or intermediate stations.

With these devices the system can be optimized with respect to the transmission power so that the appropriate type of current can be the selected for cable connections at different levels of the system.

According to a further preferred variant implementation, at least some of rectifier includes a diode or thyristor bridge.

Thereby can be made simple and reliable straightening.

According to a further preferred variant implementation, at least some of the switchgear and/or intermediate stations include a transformer.

The transformer in the unit switchgear/intermediate station current can be transformed to levels that are optimized for the characteristics of the cables at different levels of the system.

According to a further preferred variant implementation of the generating units connected to a distribution device cables alternating current (AC).

To pass from the units of the switchgear application of alternating current (AC) is generally the most acceptable alternative.

According to a further preferred variant, the communication between the distribution device and the primary intermediate stations and/or the connection between the intermediate stations include cables, alternating current (AC) or DC cables (DC), respectively.

For these compounds alternating current (AC) could the s to be the best in some embodiments, application, and direct current (DC) best in others, and optimization of the situation, to what extent and at what level should apply alternating current (AC) or direct current (DC)depends on the actual conditions under which the system works.

According to a further preferred variant implementation, at least some of the primary intermediate stations are equipped with monitoring and control system for the DC current component (DC).

Such control and management system helps to ensure adaptation to a variety of conditions that dominate in the system.

According to a further preferred variant implementation, at least one secondary or tertiary intermediate stations located on land and includes the dominant control system designed to control systems for energy generation.

It is advantageous to adapt the system to the conditions of an electric network, which is energy, and General adaptation of the system to the operating conditions.

According to a further preferred variant implementation, at least one secondary or tertiary intermediate stations located on land and includes a billing system.

If the value of this system is limited accommodation on land provide the rest is technically simpler construction of the station. The billing system provides the ability to get adequate inventory of energy supplied.

According to a further preferred variant implementation, at least some of the switchgear and intermediate stations include a relay protection device.

This is a convenient means to prevent failures in the system.

According to a further preferred variant implementation, at least some of the switchgear and intermediate stations include control and measurement system designed to measure parameters associated with shock.

Measurement of these parameters plays an important role in the control and management of the system and helps to optimize it.

According to a further preferred variant implementation, the system includes an alarm system designed to transmit information signals and/or control signals, at least some of the switchgear and/or intermediate stations and such.

Providing information in this way from different parts of the system represents another important control channel. The control signals are accordingly important to control.

According to a further preferred is a variant implementation of the alarm system includes an alarm means, selected from the group consisting of optical fibers, cables, tools, sound alarm, means of radiosignals and floats.

All these means of signaling may be used in the same system. However, in many cases there are only one or a few of them. The best choice, what type should be applied as a means of signaling depends on various aspects, such as environmental conditions, the dimensions of the system, the degree of complexity of the system, etc.

According to a further preferred variant implementation of the stator winding, at least some of the generating units includes cable with solid insulation and rigid insulation includes an inner semi-conducting layer and the outer semi-conducting layer and an intermediate insulation layer.

This type of stator winding is known as such and has the primary electrical characteristics due to the round shape, creating a uniform electric field. Since this winding voltage can be maintained high, the application of the step-up transformer in connection with the generator unit can be waived. The advantages of this kind of winding is manifested particularly clearly when it is used in the generator units in the system according to the invention.

Videopix is by preferred embodiments of the system according to the invention defined in the claims, dependent from paragraph 1.

According to the method of this invention, electric power is supplied to the electrical network by connecting electrical network system for the generation of electric energy from renewable energy sources, which includes a set of generating units located in the sea, and many switchgear located in the sea, and each distribution device connected with many of the mentioned generator units, while providing many of the primary intermediate stations and at least one secondary intermediate station, connect each primary intermediate station with many mentioned switchgear to connect the at least one secondary intermediate station with the many mentioned primary intermediate stations and located onshore electrical grid, and provide switching means enabling selective connection of at least one secondary intermediate station with various places in the electrical network.

The method according to the invention provides a corresponding advantages as those achieved by the system according to the invention and preferred options for its implementation, and which have been explained above.

The invention will be great is th clarity explained by the following detailed description of preferred examples of the invention and with the assistance of the accompanying drawings.

Brief description of drawings

Figure 1 is a diagram illustrating the system according to the first example of the invention.

Figure 2 is a diagram illustrating the system according to the second example of the invention.

Figure 3 is an illustration of some components of the system of figures 1 and 2.

Figure 4 is a side view of the example generator unit 4 in the system according to the invention.

Figure 5 is a diagram illustrating an example of the important components of the switchgear system according to the invention.

6 is a cross-section of the cable and the stator winding in the generator system Assembly according to the invention.

Detailed description of preferred examples

Figure 1 schematically illustrates a first example of the system according to the present invention.

Many generating units 4A, 5A, 6A, etc. are located in the sea and are connected to a common distribution device 1A in the sea. Many of these distribution devices 1A, 1b, 1C, etc. with the help of cables 16A, 16b, 16C are connected with the primary intermediate station 17A in the sea. Each of the distribution devices 1A, 1b, 1C, etc. are connected with multiple generator units. In the figure each switchgear connected with ten generating units, but the number shown is subject to change, moreover, the acceptable range is within 5-15 units. The number of distribution devices 1A, 1b, 1C, etc. connected with the primary intermediate station 17A, in the illustrated embodiment, is five, but could be acceptable for any number within the range from two to ten.

Primary intermediate station 17A cable 18 is connected with the secondary intermediate station 19. Secondary intermediate station 19 is connected with ten primary intermediate stations 17A, 17b, 17c.

Secondary intermediate station 19 cable 191 is connected to the electrical network. Switch 192 secondary intermediate station 19 may be connected with different places, 193, 194, 195, etc., points in the network.

Secondary intermediate station 19 can be placed either at sea or on land.

Figure 2 illustrates an alternative system. The system of Figure 2 differs from that of Figure 1 so that it is larger, including more generating units 4A, 5A, 6A, etc. and includes one level of the system. In the system of Figure 2 layout generator sets, switchgear and primary intermediate station similar to that of Figure 1. In Figure 2 the intermediate secondary station 19a is one of the many secondary intermediate stations 19a, 19b, 19s, etc. Each is h these secondary intermediate stations attached to the structure of the generating units, switchgear and primary intermediate stations like the one secondary intermediate station 19a.

Secondary intermediate station 19a cable 20 is connected with the tertiary intermediate station 21. To tertiary intermediate station 21 similarly attached secondary intermediate station 19a, 19b, 19s, etc. number of eight. Tertiary intermediate station 21 cable 211 is connected to the electrical network. In a similar way as in the example of Figure 1, there is a switch 212, through which the tertiary intermediate station can be connected with different places, 213, 214, 215, etc.

Tertiary intermediate station 21 is equipped with the equipment constituting the dominant control system 216 that is used to control the electrical energy produced by the system. The station is also equipped with equipment comprising a billing system 217, to ensure the inventory of delivered energy.

In the system presented in Figure 2, there are ten generating units connected with each switchgear. A typical power level of each generator set is about 10 kW, which means that the power output of each switchgear is 100 kW. Each primary intermediate station connected with five distribution is sustained fashion devices, having the power output of 500 kW. Each secondary intermediate station connected with ten primary intermediate stations, with the result output power of 5 MW. Tertiary intermediate station connected with eight secondary intermediate stations, giving the overall output power of 40 MW, supplied to the power grid.

Of course, that the number of generator units connected with each switchgear, the number of distribution devices connected to each of the primary intermediate station, the number of primary intermediate stations connected to each of the secondary intermediate station, and the number of secondary intermediate stations connected to the tertiary intermediate station may change. Typical of such compounds can be in the range of 2-15 at each level. The number of connections within the system, of course, may vary for different levels and within the same level. The system can also be extended to further levels, using a variety of tertiary intermediate stations, etc.

Figure 3 is a sketch of the basic layout, illustrating the distribution unit 1A, connected to the generating units. The distribution unit 1A is mounted on the bottom of the sea Century Switchgear 1A state is tons of waterproof container, formed by the housing 102 and the base plate 103, which may be made, for example, concrete. Switchgear 1A fixed in the seabed Century Generators 4A-9a several wave energy installations connected with the station switchgear.

Each generator unit 4A-9a is electrically connected with the station switchgear 1A cables 42-46, through inlets in the housing 102 are connected with the components inside the station switchgear. Voltage is supplied from each block as a direct or alternating electric current of low voltage.

Components in the station switchgear 1A represent the details of the common type and the figure is not shown. These components may include semiconductors, converters, switches, measuring devices, devices of relay protection, lightning arresters and other devices surge protection, grounding means, load balancers or circuit breakers, and transformers.

Station switchgear delivers the output AC or DC current, preferably a high voltage through the output cables 16A. Alternating electric current has a low frequency and may be three-phase or multiphase. Can also be used STD is bound frequency, such as 50 or 60 Hz.

Input current low voltage is converted into an output current of high voltage using the transformer in the station switchgear. The Converter or inverter station switchgear is used when you need to convert DC to AC (DC-AC) or Vice versa.

Voltage switchgear 1A is fed to the primary intermediate station 17A, as illustrated in Figure 1.

Primary intermediate station 17A fixed to the seabed and consists of a waterproof container formed by the housing 171 and the base plate 172. Primary intermediate station 17A may include various components, only symbolically represented in the figure, among other things, the rectifier 173, inverter 174, equipment for system 175 of the control transformer 176, relay protection device 177, equipment for measuring system 178 and equipment for the alarm system 179. Such components of the alternative, or in addition may be present in switchgear and intermediate stations at higher levels. Fiber optic cable 180 is connected to the equipment for alarm systems 179, through this cable information signals can be transmitted on the primary sub the full-time station 17A, and out of it. Of course, there may be alternative or additional use of other types of alarm.

Generating units 4A-9a in Figure 2 is illustrated as generators driven waves. However, the system applies the generators driven by wind or currents in the water, such as illustrated units 10A and 11a, respectively.

For units types, represented by the numbers 10A and 11a, it is a usual generator with a rotating rotor, whereas for units of the type represented by numbers 4A-9a, applies a linear generator.

Such a unit is illustrated in Figure 4.

The body of the float 43 is floating on the surface And ocean. Wave report the body of the float 43 vertical oscillatory motion. Linear generator 45 is fixed to the seabed with the help of the base plate 48, secured in the bottom. The plate can be made of concrete. The stator 46a, s linear generator mounted on the base plate 48. The stator consists of four vertical plate stacks in the form of columns, only two of which are visible in the figure. A rotor with a reciprocating generator 47 is located between the plate stack and connected to the housing of the float 43 cable 24. The material of the rotor 47 is a permanent magnet.

The base plate 48 has a centered hole is the hole 50, and coaxially one in the seabed made the bottom of the recess 49. The recess 49 may be properly lined. Spring 51, working on stretching, fixed in the lower end of the recess 49, and the other end of the spring attached to the lower end 52 of the rotor 47. The diameter of the hole 50 in the base plate 48 and grooves 49 is such that the rotor 47 is free to move through them.

When the body of the float 43 moves up and down due to wave motion of the surface And the ocean, this movement is transmitted through the cable 44 to the rotor 47, which thereby acquires a equivalent oscillatory motion between the plate stacks. Thus in the windings of the stator generated current. The recess 49 allows the rotor during its movement down to go through the whole entire stator. Spring 51, working in tension, according to an additional force directed downward movement so that the cable 44 all the time is maintained taut.

Figure 5 illustrates a possible layout of internal parts of the control device 1A. In the shown example, the distribution unit 1A is connected with three units 4A, 5A, 6A. Each unit is connected through a disconnect switch or contactor 31 and the rectifier 32 and inverter 33 in bipolar connection according to the figure. The switching scheme is shown only for unit 4A. It should be clear that other units 5A,6A are connected in the proper way. The rectifier 33 delivers three-phase current in electric cables 16A, perhaps through the transformer 34 and/or the filter. Rectifiers can be a diode, which can be managed and the type IGBT, GTO, or thyristors, including managed or unmanaged bipolar components. The currents on the DC side can be connected in parallel or sequentially, or a combination thereof.

6 is a cross-section of the cable 100, forming the stator winding in the generator units 4A, 5A, 5b, etc. Outside the conductive part 101 of the cable has solid insulation comprising an inner semi-conducting layer 102, the outer semi-conducting layer 104 and the intermediate insulation layer 103.

1. System for the generation of electric energy from renewable energy sources, which includes a set of generating units located in the sea, and many switchgear located in the sea, and each distribution device connected with many of the mentioned generator units, characterized in that it includes many primary intermediate stations and at least one secondary intermediate station, and each of the primary intermediate station connected with many of the mentioned distribution device, at least one second is CNA intermediate station connected with the many mentioned primary intermediate stations and located onshore electrical grid, and moreover, the system includes switching means enabling selective connection of at least one secondary intermediate station with various places in the electrical network.

2. The system according to claim 1, characterized in that the system includes many secondary intermediate stations, each secondary intermediate station connected with the many mentioned primary intermediate stations.

3. The system according to claim 2, characterized in that the system includes tertiary intermediate station, and tertiary intermediate station connected with many of the mentioned secondary intermediate stations.

4. The system according to claim 3, characterized in that at least some of the primary intermediate stations are located in the sea.

5. The system according to claim 4, characterized in that at least one of the secondary intermediate stations located in the sea.

6. The system according to claim 5, characterized in that the tertiary intermediate station is located in the sea.

7. The system according to claim 1, characterized in that each distribution device includes a waterproof container, fixed to the seabed, and the container contains at least some of the components of the switchgear.

8. The system according to claim 1, characterized in that at least some of the primary what's the intermediate stations and/or, at least some of the secondary intermediate stations include a waterproof container, fixed to the seabed, and the container contains at least some of the components of the stations.

9. The system according to claim 1, characterized in that at least some of the generating units include means driven by the waves.

10. The system according to claim 9, characterized in that the generator of the at least some of which is driven by the wave generator units is a linear generator having a rotor with a reciprocating movement, comprising permanent magnets.

11. The system according to claim 1, characterized in that at least some of the generating units represent the generators driven by the wind.

12. The system according to claim 1, characterized in that at least some of the generating units represent the generators driven by water currents.

13. The system according to claim 1, characterized in that it includes a rectifier to convert AC to DC (AC/DC) and/or inverters to convert DC to alternating current (DC/AC), and rectifiers/inverters are placed in the distribution devices and/or intermediate stations.

14. The system of item 13, distinguishing the I, that at least some of rectifier includes a diode or thyristor bridge.

15. The system according to claim 1, characterized in that at least some of the switchgear and/or intermediate stations include a transformer.

16. The system according to claim 1, characterized in that the generating units are connected with switchgears cables alternating current (AC).

17. The system according to claim 1, characterized in that the connection between the distribution device and the primary intermediate stations and/or the connection between the intermediate stations include cables, alternating current (AC).

18. The system according to claim 1, characterized in that the connection between the distribution device and the primary intermediate station and/or the connection between the intermediate stations include cables direct current (DC).

19. The system according to claim 1, characterized in that at least some of the primary intermediate stations equipped with a system of control for the DC current component (DC).

20. The system according to claim 3, characterized in that at least one of the mentioned secondary or tertiary intermediate stations located on the land and includes a master control system configured to control systems of electric energy production.

21. ICI the EMA according to claim 3, characterized in that at least one of the mentioned secondary or tertiary intermediate station is on land and includes a billing system.

22. The system according to claim 1, characterized in that at least some of these distribution devices and/or the intermediate stations include a relay protection device.

23. The system according to item 22, wherein the said relay protection device is a differential protection or surge protection.

24. The system according to claim 1, characterized in that at least some of these distribution devices and/or the intermediate stations include measuring system configured to measure parameters related to the current.

25. The system according to claim 1, characterized in that the system includes an alarm system which has a capability of transmitting information signals, at least some of the switchgear and intermediate stations and from them.

26. System A.25, wherein the alarm system includes an alarm means selected from the group consisting of fiber, cable, tools, sound alarm, means of radiosignals and floats.

27. The system according to claim 1, characterized in that the winding hundred is ora, at least some of the generating units includes cable with solid insulation and rigid insulation includes an inner semi-conducting layer, the outer semi-conducting layer and an intermediate insulation layer.

28. The method of supplying electric energy to the electric network by connecting electrical network system for the generation of electric energy from renewable energy sources, which includes a set of generating units located in the sea, and many switchgear located in the sea, and each distribution device connected with many of the mentioned generator units, characterized in that provide many of the primary intermediate stations and at least one secondary intermediate station, connect each primary intermediate station with many mentioned switchgear to connect the at least one secondary intermediate station with the many mentioned primary intermediate stations and located onshore electrical grid, and provide switching means enabling selective connection of at least one secondary intermediate station with various places in the electrical network.



 

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The invention relates to the field of hydropower, and specifically to the conversion of kinetic energy of sea waves into electricity

FIELD: power engineering.

SUBSTANCE: invention is designed for conversion of wave energy into electric energy. Proposed converter contains mechanically coupled fixed post, float chambers, frame, shaft, step-up gear and electric generator. Moreover, converter additionally contains relatively interacting second shaft, first and second gears and at least two motion converters. First and second gears are fixed on corresponding shafts and engage with each other. Each motion converter has vertical rod installed for vertical vibration on upper end of which first block is installed, and on lower end, third sprocket engaging with first and second float chambers. First and second overrunning clutches with sprockets are installed on shafts and they engage through first and second chains with third sprocket.

EFFECT: increased efficiency.

8 cl, 7 dwg

Wave power plant // 2316670

FIELD: power engineering.

SUBSTANCE: proposed plant is designed for converting energy of waves into electric energy. Proposed plant contains vertical support secured on bottom, rocking rod installed on support for rotation around axis of support, float secured on one of rod ends. Float is provided with intake bottom hole and outlet top hole, both provided with remote controlled valves, and electric generator. Upper end of support remains under water at any possible magnitudes of waves. Wave magnitude sensor is connected with remote controlled valves, float is connected to pneumatic line connected with pressure source, rocking rod is connected with pump which is connected by pipeline with accumulator of hydropotential energy on shore, electric generator is located on shore and is coupled with hydraulic turbine connected with accumulator of hydropotential energy. Plant changes to safe mode of operation owing to filling of float with water at excess of magnitudes waves determined by corresponding wave magnitude sensor.

EFFECT: provision of reliable and long operation.

9 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: device exploiting the wave energy incorporates a support with openings for water overflowing and a frame furnished with storm pumps, the extreme of which, incorporating discharge valves, communicate via a pipe with a receiver and curvilinear deflector connected to the pumps rods, the deflector being made in the form of a float with its concave surface facing the incoming wave, a balancer arranged opposite to deflector on the frame mounted to rotate about a horizontal axis laying between the balancer and deflector and a working pump fitted on the support with its rod coupled via transfer mechanism with the frame. The support front incorporates a wave killer made in the form of a prism, its apex directed towards the wave, and arranged to vertically move on along the support. The wave killer height makes half the height of the support. The medium storm pump has a branch pipe communicating via the pipe with the receiver and used a the deflector pusher. Storm pumps incorporate openings allowing the piston back free stroke.

EFFECT: simpler design and higher reliability.

1 dwg

FIELD: engineering industry.

SUBSTANCE: device can be used in water power engineering. Closed floating casing is installed on supports so that it can rotate. To inner surface of the casing attached are solenoids wherein located are ferromagnetic pins. Rod is located inside the casing and is connected with ferromagnetic pins. Casing's rotation axis is located at an angle to rod axis. Rod is installed on rollers and spring-loaded on both ends. Casing is equipped with current-collecting elements and vane propeller.

EFFECT: providing the specified value of travel and uniform speed of movement of ferromagnetic pins in solenoids at various wave amplitudes using wave advance energy.

2 dwg

Wave power plant // 2345244

FIELD: engines and pumps.

SUBSTANCE: invention is related to hydraulic engineering. Wave power plant comprises body placed on supports, solenoids fixed inside body and ferromagnetic rods installed in solenoids. Body is installed on shaft with the possibility of rotation. External surface of body is arranged as circular-cylindrical with blades in the form of double-threaded Archimedean screw and is equipped with current-collecting elements. Solenoids are arranged as annular, are oriented and fixed in planes that are perpendicular to shaft longitudinal axis. Ferromagnetic rods are arranged in the form of tore and are equipped with rollers. Length of body is accepted as equal to at least half of wave length.

EFFECT: provision of electric power generation stability.

2 dwg

FIELD: engines and pumps.

SUBSTANCE: invention is related to float pump units in power systems based on float pumps, in which water motion is used for transportation of gas, liquid and their combinations from one place to another. Float pump comprises float having controlled volume, which is arranged with the possibility of return displacement under effect of waves, piston installed with the possibility of sliding inside piston cylinder and connected to float. Piston is arranged with the possibility of return displacement in the first direction and second direction under effect of float motion. Piston moves in the second direction for suction of working fluid medium into piston cylinder and moves in the first direction for removal of working medium from piston cylinder.

EFFECT: creation of environmentally safe, highly efficient, low cost devices for power generation.

27 cl, 30 dwg, 4 tbl

FIELD: power industry.

SUBSTANCE: wave electric power station intended for being installed on or in the sea or lake, for power generation includes floating construction and at least one floating body 1 which is moved vertically in relation to floating construction and is connected to the aforesaid construction through power transmission device. Floating construction includes a deck which is supported in fact with vertical supports. Supports have a pontoon functioning as damper and adapted for being arranged below water level. Deck, supports and pontoon comprise the space within which floating body 1 or bodies are located. In fact, pontoons have square section with oblique angles and with width which is more than height so that the floating construction is essentially fixed relative to still water level.

EFFECT: increasing output energy of wave electric power station.

17 cl, 17 dwg

FIELD: power engineering.

SUBSTANCE: wave power plant comprises vessel with electric generator installed in it, rotor connected to the latter with vertical axis of rotation, with horizontal blades. Between the latter vertical blades are installed with serial alternation of vertical and horizontal ones. Blades are installed in plane of undisturbed surface of water so that the latter is plane of symmetry for them.

EFFECT: increased efficiency of wave power plant operation by increase of share of wave kinetic energy transformed by plant into mechanical energy of rotary shaft.

4 dwg

FIELD: electricity.

SUBSTANCE: system includes a number of generator units (4a-6c) located in sea and a number of switchgear (1a-1c) located in sea. Each switchgear (1a-1c) is connected with a number of generator units (4a-6c). According to the invention, the system comprises a number of primary intermediate stations (17a-17c). It also includes at least one secondary intermediate station (19). Each primary intermediate station (17a-17c) is linked with a number of switchgears, and each secondary intermediate station (19) is connected with a number of primary intermediate stations (17a-17c). In addition, the secondary intermediate station is connected with on-land electrical network. The switching device (192) is available to ensure connection with different locations (193, 194, 195) of electrical network.

EFFECT: creation of system which is technically and economically compatible for supplying power to common electrical network.

28 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: wave electric station contains operating sections each represented as hollow straight four-sided V blocks, in cross section and in the form of rectangular. It is open from the bottom and linked with water medium. The above sections are installed lengthwise closely to each other. There are two open-end longitudinal windows in the top part of V-block, which form intake and pressure main lines and rectangular windows. The sections are located between vertical boards hung butt-to-butt inside two parallel lines punched into pile bottom.

EFFECT: increased power output from plant and simplified design.

3 cl, 9 dwg

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