Pulse wave energy converter

FIELD: machine building.

SUBSTANCE: invention relates to the power industry field, in particular electrogenerating installations using sea waves energy. Pulse wave energy converter contains movable multilink structure consisting of modules with local energy-transducer implemented in the form of movable connected one relative to other floating blocks with winding, condensing installation and rectifying installation. Modules are outfitted by electromagnets with detachable core and located on it magnetised and power winding. Magnetising windings are directly or through adjusting resistor are connected to common buses. Power winding are connected to them through rectifying installation. Buses are connected to condensing installation. Components of detachable core are connected to adjoining blocks.

EFFECT: simplification of design; increasing of coefficient of efficiency by means of self-optimise of operation mode.

3 dwg

 

The invention relates to the field of electric power industry, in particular to electricity generating plants that use the energy of sea waves. Such modules installed with a certain step along the coast, can serve not only as a source of electricity, and construction engineering protection from wave erosion.

Known designs of wave energy converters of various types. A special kind of these are different ways of structures attenuating type "flexible hose", in which wave energy is transmitted to the elastic elements of the device as it passes under the last of these elements. (Whakarongo. The conversion of the energy of the ocean. - Leningrad: Sudostroenie, 1986 [1], c.142). In such structures, the wave energy is directly converted into the energy of air or hydraulic flow. Then these flows are directed into the turbine, torque generators.

Such systems with intermediate conversion of the energy complex in the device and service, and are also associated with additional loss of energy, which is a serious drawback of these solutions.

Known induction wave generators in the form of a "point" buoys (see[1], s) with direct conversion of wave energy into electrical energy. An example of such a device is also floats the I wave power AOV (U.S. Pat. EN 2037642, CL 6 F03 13/16).

However, the point converters, even when equipped optimizing systems Budala - Folia (Cohen R. Energy from the ocean. Phil Trans. Roy. Soc. London, 1982, vol.7, A307. N 1499, [2], p.405-435), thin and not able to simultaneously perform coastal protection from destructive waves.

Known development Inc (A.S. SU 859670, 1981). It is a flexible metal sleeve from separate sections, made of bellows, half-filled with mineral oil. By changing the position of the flexible sections of the oil passes through the turbines connected to electric generators.

Here are promising in principle "attenuation" model has, however, together with the volatility parameters of the received electric power and other typical disadvantages: complexity of design, and therefore, a high cost of manufacture and maintenance, and low overall efficiency of the conversion of wave energy into electrical energy.

The closest analogue of the inventive Converter is the wave power unit (SU 1803597 A1, 23.03.1993, F03B 13/16)containing the mobile multi-tier structure consisting of modules with local energoproizvoditelej made in the form of the United movable one relative to the other floating units with coils, condenser installation and rectifier. This technically is against the decision is aimed at implementation of direct conversion of the energy resource extensive water surface into electrical energy, although it has a number of disadvantages, the main of which are: the inability of this multi-tier design (with constant sizes of all its links) "copy" under her real complicated surface sea waves; the uncertainty of the position of the center of gravity of each of the rotor, which does not allow to optimize the mode energy converters in any phase at any direction passing under the waves; the independence of the degree of magnetization of the poles (plates) of the rotor on the intensity of agitation of the water surface also provides optimal power and damping of the waves.

Objective of the claimed invention, together with the exception of the intermediate pneumo-hydraulic systems and any transmission is the ultimate simplification of the design of a wave energy Converter, as well as increasing its efficiency through self-optimising the operation mode in any real operational conditions.

The problem is solved in that in the inventive pulsed wave energy Converter containing the mobile multi-tier structure consisting of modules with local energoproizvoditelej made in the form of the United movable one relative to the other floating units with coils, condenser installation and a rectifier device according to izopet which of the modules are equipped with electromagnets with split core and placed on magnetizing and power windings, thus magnetizing winding directly or through a regulating resistor are connected to the common buses, and a power winding connected through a rectifier device, and the bus is connected to the capacitor unit, and elements of the split core associated with adjacent blocks.

Equipment modules electromagnets with split cores, the elements of which are associated with adjacent blocks allow to convert the energy of moving under the influence of waves of blocks in the periodic change of the generated magnetizing winding of the magnetic flux in the magnetic core by abrupt changes in the last of the magnitude of the gaps, thus induced in the power winding of the pulse is converted by a rectifier device in unipolar form and accumulate in the drive, which to some extent justifies the load current at the power consumer. Thus, in the device eliminated unnecessary links of the energy Converter, and the operation mode is optimized by automatically adjusting the degree of magnetization of the cores of the electromagnets, as well as the power generated pulses of electric current depending on the intensity of the sea.

The invention is illustrated by the following illustrations: figure 1 shows a General view of the inventive pulse is of reobrazovateli wave energy (IPVA); figure 2 is a longitudinal section of the first pair of modules; figure 3 - schematic of IPVA.

The most promising, according to the author, a variant of the inventive device is made so: its contouring raft contains a series of pivotally connected floats modules: head 1 (see figure 1), several intermediate 2 and end 3. Head module 1 is equipped with a bumper 4 and is connected with the anchor on the seabed or building) via cable using - if necessary - elastic rope 5. Inside the module 1 on its end secured one of the elements of the split core 6 (see figure 2), which has the power winding 7 connected through rectifier 8 to the General tire condenser unit 9, to which, either directly or through a known regulating resistor connected magnetizing coil 10 located on the second element of the split core 6 installed on the end adjacent the intermediate module 2. The modules are connected in a hinged joint 11 with the possibility of a limited relative rotation of both vertical and horizontal direction. Their flexible connection secured tight box 12. To the General tire condenser installation 9 is connected to the exhaust cable 13. Its internal head module 7 differs from intermediate 2 only those who, that doesn't split core 6 with the magnetizing winding 10, and the trailing module 3 contains only the element (see figure 3).

Contouring raft may have a multilayered structure.

Does the proposed Converter so. When the calm surface of the sea, all the modules 1, 2 and 3, the buoyancy of which is approximately equal to their weight evenly distributed in terms occupy a horizontal position. With the advent of excitement minor in magnitude of the magnetic flux due to the residual magnetization of the cores 6, undergoes changes associated with changes in the total size of gaps in the magnetic circuit when the relative movement of adjacent floats. Arising in the power windings 7 weak pulses pass through the rectifier device 8 and create the initial charge of the capacitor 9, which leads to the appearance in the magnetizing windings 10 of the magnetizing current. When this voltage pulse increases rapidly, increasing the voltage on the common bus bar to a level at which the magnetizing current produces on the elements of the split core 6 limiting the force which can overcome the waves at this time.

To equalize the working conditions of all modules in the attenuation of the transmitted wave is sufficient to have a different ratio of the number of turns of the silt and magnetizing windings, increasing in the direction from the head module 7 to the closing 3. Such alignment can provide and install IPWA on shallow (less than half the length of the calculated wave) water from natural or artificial slope of the bottom in the opposite direction with respect to characteristic the direction of the waves.

During operation of the claimed device due to a substantial mass of floats and magnetic circuits having some inertial forces. While undesirable in other analogues, here they perform a useful action, namely: working through the hard limiter hinge joints 11 on neighboring extremely "deployed" to one another floats, they create a "Domino effect", increasing the dynamic pulses, normally closed magnetic circuits of the latter.

Envisaged in the design of an elastic insert 12 is securely protects the face part of the modules from exposure to the marine environment.

Flexible power cable 13, the transmitting electricity to the consumer, not to prevent the free movement of the raft, because the plot of the descent on the elastic rope 5 cable fastening padded with reserve length, evenly distributed on this rope. The last is particularly necessary when heavy sea, when the raft is subject to considerable vertical movements.

So described the impulse of the initial wave energy Converter with extremely simplified construction capable of operating in an optimal manner when changing the intensity and the direction of movement of the waves, without requiring complex automation systems are described, for example, in [2], to extinguish (sufficient for many coastal waters) dangerous excitement and, most importantly, to provide electricity is not a "whimsical" to its quality needs, such as heating, drying materials, desalination, retrieved from the hydrogen and oxygen, etc. and using conversion devices and to produce electric power with standard options. Almost all production of IPVA can be performed in the factory, and the cost of their installation and maintenance is minimal.

Pulsed wave energy Converter containing the mobile multi-tier structure consisting of modules with local energoproizvoditelej made in the form of the United movable one relative to the other floating units with coils, condenser installation and a rectifier device, characterized in that the modules are equipped with electromagnets with split core and placed on magnetizing and power windings, thus magnetizing winding directly or through a regulating resistor are connected to the common buses, and a power winding connected through a rectifier device, and the bus is connected to the capacitor unit, and the elements detachable gel core is and connected with the adjacent blocks.



 

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