Method of steam turbine set operation |
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IPC classes for russian patent Method of steam turbine set operation (RU 2557049):
 
 Wind-driven power plant / 2548320
Wind-driven power plant includes blades on a shaft with an attachment assembly to an operating machine, an electric drive with variable rotation frequency, an electrical generator, a freewheel clutch, a controller and a speed sensor of blades. The attachment assembly of the shaft of blades to the operating machine is made in the form of a mechanical connection automatically controlled with a controller. The electric drive is made as a starting motor provided with a speed sensor and connected through the freewheel clutch to the shaft of the operating machine. The controller provides for actuation and synchronisation of speed of the starting motor with speed of blades upon achievement of an empirically set value in a pulse operating mode of the plant, and the electrical generator is constantly connected to the shaft of blades.
 Induction-type wind electric generator / 2528428
Invention relates to electric engineering and wind power engineering and can be used in power production devices. Technical result achieved by using the present invention consists in the improvement of operational characteristics of a wind electric generator due to the reduction of its weight. The above technical result is achieved due to the fact that according to the present invention in the induction-type wind electric generator comprising a shaft, a toothed rotor and a modular two-pack stator, each of the stator pack modules is made as an excitation source on which vertical sides of L-shaped yokes are symmetrically set while cores with coils are installed on the horizontal sides.
 Windmill stator / 2526237
Invention relates to wind power engineering, particularly, to segmented stators of windmills. Windmill stator comprises magnetic cores, excitation system, coupling elements and winding. In compliance with this invention, stator is composed of "Ш"-like magnetic core with excitation sources secured to its lateral walls by coupling elements. Note here that winding is fitted on mid rod of "Ш"-like magnetic core.
 Wind-driven electric generator of segment type / 2523432
Invention relates to electric engineering and wind industry and can be used in devices for generation of electric energy. The mentioned technical result is achieved by the fact that each module of starter is designed of two-packet type in the proposed wind-driven electric generator of segment type containing shaft, timing rotor and module stator according to the invention, in this case ferromagnetic jumpers with two excitation sources installed with reverse polarity enter into composition of the first package, and the second packet includes U-shaped jumpers with coils. Technical result is improved performance characteristics of wind-driven electric generator of segment type due to reduction of its weight.
 Wind-driven power plant for jet stream energy storage / 2504689
Wind-driven power plant for jet gas stream energy storage includes a pedestal on a foundation with a wind wheel, a unit creating a jet gas stream, a reduction gear and a compressor, which interact between each other, a discharge main line, and air cleaning and drying units. A wind wheel interacts with the reduction gear. The pedestal on the foundation is made in the form of a gas stripper. Front wall of the gas stripper is made in the form of a horizontal funnel having a constriction towards the wind wheel for concentration of the jet stream created with an aerodrome unit. Rear wall is inclined and meant for upward discharge of the jet stream. Air bottles serve for compressed air storage and are connected to a compressor via the discharge main line.
 Wind-driven power plant with heated diffuser accelerator / 2499913
Wind-driven power plant comprises a diffuser accelerator and a wind wheel installed inside it. The wind wheel is connected to a power generator. A power converter-distributor is connected to the power generator. An inverter, a solar and an accumulating batteries are connected electrically with the converter-distributor. Additionally a thermoelectric heater is connected to the power converter-distributor. The heater is installed on the diffuser accelerator.
 Power system / 2499156
Power system comprises a wind power or a hydraulic power turbine 1, connected with a generator 2. The generator 2 has at least two windings 3 of the stator. Each winding 3 of the stator is connected accordingly to one rectifying element 4. Each winding 3 of the stator is connected to the side of AC voltage of the connected rectifying element 4. Each rectifying element 4 is connected accordingly to one circuit 5 of energy accumulation. Each rectifying element 4 at the side of DC voltage is connected in parallel with the connected circuit 5 of energy accumulation. Circuits 5 of energy accumulation are connected to each other in sequence.
 Inductor-type generator / 2497259
In the proposed inductor-type generator containing rotary elements with a shaft, a stator, end shields and bearings, according to this invention, the stator is made in the form of two angles; with that, the first side of the first angle is installed parallel to the rotary element; the second side of the first angle is connected to an excitation source, to which there also connected is the first side of the second angle, and on the second side of the second angle there installed is a core with a coil, the working surface of which is oriented parallel to the rotary element.
 All-purpose complex power system / 2489589
All-purpose complex power system for generating electricity, cold and heat includes a wind motor aggregated with a compressor driven with it through a power module, an air accumulator, a heat exchanger with hot and cold circuits, a warm air consumer, a turbo-expansion machine aggregated with an electric motor driven with it, and a cold air consumer. The compressor is connected gas-dynamically with its inlet to atmosphere, and with its outlet through a hot circuit of the heat exchanger to the air accumulator inlet. The turbo-expansion machine is connected at the inlet gas-dynamically through a shutoff member to the air accumulator outlet, and at the outlet to the inlet of the cold air consumer. Inlet and outlet of the heat exchanger cold circuit are connected to each other through the warm air consumer. The power system includes an increased-pressure natural gas source, a natural gas consumer, an additional compressor with a drive and an additional turbo-expansion machine with a power consumer. The turbo-expansion machine with the power consumer are enclosed in a capsule. The additional compressor is connected at the inlet gas-dynamically to atmosphere, and at the outlet through the shutoff member to the air accumulator inlet. The additional turbo-expansion machine is connected at the inlet gas-dynamically through shutoff members to the natural gas source and to the air accumulator outlet and at the outlet through shutoff members to the natural gas consumer and to the cold air consumer inlet.
 Synchronous inductor generator / 2488934
Synchronous inductive generator contains radial spoke-shaped rotor elements and a ferromagnetic base with stator elements including excitation sources, coils and magnetic conduits. According to the invention, the stator elements are designed in the form of two modules mounted on the ferromagnetic base, the base proper oriented parallel to the spoke-shaped rotor element. The proposed synchronous inductive generator needs no specially manufactured rotor element.
 Steam turbine warming method / 2392452
Invention refers to warming method of steam turbine including intermediate pressure partial turbine and/or low pressure partial turbine. Intermediate pressure turbine includes the supporting device on its outlet side; at that, during the start-up process, the steam flowing through intermediate pressure partial turbine is supported at the outlet by means of supporting device so that steam pressure in intermediate pressure partial turbine increases. The steam leaving intermediate pressure partial turbine is supported, due to which steam pressure and temperature increases. Heat transfer of steam to thick-wall structural elements located in intermediate pressure partial turbine, as well as to the shaft of intermediate pressure partial turbine increases.
Steam turbine warming method / 2392452
Invention refers to warming method of steam turbine including intermediate pressure partial turbine and/or low pressure partial turbine. Intermediate pressure turbine includes the supporting device on its outlet side; at that, during the start-up process, the steam flowing through intermediate pressure partial turbine is supported at the outlet by means of supporting device so that steam pressure in intermediate pressure partial turbine increases. The steam leaving intermediate pressure partial turbine is supported, due to which steam pressure and temperature increases. Heat transfer of steam to thick-wall structural elements located in intermediate pressure partial turbine, as well as to the shaft of intermediate pressure partial turbine increases.
 Method of steam turbine set operation / 2557049
Proposed invention relates to the field of heat power engineering, related to steam turbine sets, in particular, included into steam gas plants, with steam reheating by means of a thermal electric heater. The method of operation of the steam turbine set includes steam reheating by means of a thermal electric heater (2), supplied from a power generating wind-driven power plant (3), and subsequent expansion of steam in a turbine (4). The thermal electric heater (2) is switched to supply from a reserve power supply source (6) with reduction of wind-driven power plant (3) capacity to 10% level of exceeded capacity of the thermal electric heater (2). The reserve source of power supply (6) prior to switching to power supply of the thermal electric heater (2) is switched to ballast load. The reserve source of power supply (6) is represented by accumulators of power or power plants on organic fuel.
 Stator of wind electric generator / 2253042
Proposed stator of wind electric generator contains magnetic circuits, excitation system, bracing members and winding. According to invention, stator is made in form of two pairs of U-shaped magnetic circuits. Upper pair is pointed with bridges downwards. Excitation system is installed between adjacent points. Lower pair is pointed with bridges up-wards and is enclosed by coil located between adjacent posts.
 Windmill-electric generating plant / 2254667
Windmill-electric generating plant has support, shaft mounting rotor-type windmill, electric generator, and power pick-off device; novelty is that proposed plant is provided in addition with one more windmill disposed on first windmill shaft and coupled with external rotor of electric generator whose internal rotor is coupled with first windmill; both internal and external rotors are attached to first and second windmills, respectively, by means of their respective rings fixed to them.
 Air trap / 2263817
Proposed air trap relates to alternative power supply sources, namely, to wind power engineering and it can be used as supply sources for small settlements, farms, geological stations, parties, etc. Air trap includes air intake and wind electric generators. Air intake is made in form of conical pipe with wind vane to entrap air masses fitted on. Air intake proper is secured on platform mounted on rotary bed frame. Each generator is furnished with adjustable brackets in base.
 Segment-make wind power generator / 2267028
Proposed wind power generator has magnetic field source, operating coils, magnetic circuits and rotary elements - segments installed on wind wheels. According to invention, magnetic circuits are made in form of two E-shaped plates arranged in two parallel planes and in form of two L-shaped plates arranged square to E-shaped plates. Each L-shaped plate is secured to one of side posts of E-shaped plate.
 Wind-driven electric plant / 2287718
Invention can be used I self-contained power supply systems employing renewable types of energy, and also to supply submersible electric pumps and other power consumers. Proposed wind-driven electric plant contains differential gear train, windmill, windmill shaft speed sensor, dc machine, voltage inverter, storage battery, field regulator, field switch unit and electric load. Electric load is connected to voltage inverter which is connected with dc machine driven by windmill. Storage battery serves as energy accumulator. At wind blowing, dc machine generates energy which is supplied to electric load through voltage inverter, and simultaneously storage battery is being charged. At weak or no wind, field switch unit precludes discharge of storage battery through field winding of dc machine.
 Wind heat power generator / 2298688
Wind heat power generator comprises water heat accumulator, wind motor made of a propeller mounted on the shaft mounted in rotating reduction gear set in the bearing unit and having coaxially mounted shafts rotating oppositely. One of the conical pinions of the propeller shaft engages two same conical pinions provided with oppositely mounted teeth. Each conical pinion is mounted on the individual coaxial vertical shaft.
 Wind power-generating plant / 2313693
Invention relates to wind power-generating plants designed to supply different consumers with power generated at use of wind energy. Proposed wind power-generating plant has tower, windwheel with shaft, step-up hear, inertia accumulator and generator. Shaft of windwheel is connected through step-up gear and inertia accumulator with housing of stator of dc machine. Shaft of armature of dc machine is connected with shaft of synchronous generator. Direct current machine and synchronous generator are electrically connected with energy accumulators through control unit. Armature winding of dc machine is provided with possibility of reversing of poles.
 Self-contained with power generating station / 2319038
Invention relates to self-contained multipurpose power supply systems and it can be used for uninterrupted power supply of consumers located in areas distant from centralized power and heat supply with different types of energy. Proposed self-contained wind power generating station has windmotor, internal combustion engine, electric system, mechanical system and electromechanical system. Electric system includes ac generator, transformer with adjustable output voltage, ac-to-dc rectifier and storage batteries unit. Windmotor has at least three power takeoff shafts. Mechanical system includes air compressor and receiver. Electrochemical system includes dc generator, two electrolyzers one of which is connected by electric cable with dc generator, and second one is connected with electric system ac rectifier, compressors to prime hydrogen and oxygen into gas holders and system of pipelines to supply hydrogen and oxygen to internal combustion engine, boiler and filling stations of vehicles. Sea water is used for electrolysis. Gas holders are arranged under ground.
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FIELD: power engineering. SUBSTANCE: proposed invention relates to the field of heat power engineering, related to steam turbine sets, in particular, included into steam gas plants, with steam reheating by means of a thermal electric heater. The method of operation of the steam turbine set includes steam reheating by means of a thermal electric heater (2), supplied from a power generating wind-driven power plant (3), and subsequent expansion of steam in a turbine (4). The thermal electric heater (2) is switched to supply from a reserve power supply source (6) with reduction of wind-driven power plant (3) capacity to 10% level of exceeded capacity of the thermal electric heater (2). The reserve source of power supply (6) prior to switching to power supply of the thermal electric heater (2) is switched to ballast load. The reserve source of power supply (6) is represented by accumulators of power or power plants on organic fuel. EFFECT: increased efficiency and reliability of set operation due to elimination of impact of inertia of a reserve power supply source to provide a thermal electric heater of a STU with required amount of power. 4 cl, 3 dwg
The present invention relates to the field of power associated with steam turbine units (PTU), in particular forming part of combined cycle power plants, steam superheating by means of teploelektronagrevatel (PETN), powered non-stabilized electric power generating wind power plant (WPP). A method of operating a steam turbine plant (Zharkov, S. V. the Use of wind energy in steam turbine plants // Heavy engineering. 2003. No. 11. Zharkov S. Wind use at thermal power plants // RE-GEN. Wind. Modern Power Systems Publication, Wilmington Media Ltd. 2004. March, pp. 13-15), including overheated steam through teploelektronagrevatel (PETN), powered non-stabilized (not conforming to the standards of frequency, the sinusoidal and the voltage required for supplying the consumers) of electricity from electricity generating wind turbines, and the subsequent expansion of the steam in the turbine. This allows to overheat the steam to temperatures unattainable in steam boilers, with the corresponding increase of efficiency of vocational schools. The method can be applied both on TPP steam turbine and combined cycle. To maintain a stable temperature at the turbine inlet at low wind speeds are sometimes asked to apply contact the superheaters on hydrogen and oxygen (see ibid.). However, such devices are still being developed. Who�you can also work a vocational school "wind chart: sliding pressure steam during periods of insufficient wind power (see ibid). However, it is much more complicated heat scheme PTU and system management, especially in the case of such vocational school in the binary CCGT unit, as the changing structure of supply of heat to the steam in the heat-exchange surfaces of the boiler (waste heat recovery boiler CCGT) with the change of dynamics of change of the temperature of the flue gases as they move in the annular space of the boiler. Accordingly may increase flue gas temperature with a reduction in the efficiency of the boiler and installation (station), in General. There are also additional thermal and dynamic loads on the elements of the boiler and turbine at the changes in their modes of operation. To compensate for such adverse changes necessary to organize the redistribution of feed water and steam with their optimization on various heat exchange surfaces of the boiler. To do this, you must first enter into thermal profile of the boiler such opportunities in the form of additional pipelines connecting the various heat transfer surfaces (economizer, steam and paroperegrevatelya) boiler and organize the optimal flow of feed water and steam on them, which will require upgrade standard system control unit PTU. It is also known a device for the Autonomous power supply (Patent RU 2325551 C1, IPC8F03D 9/02 DEVICE FOR OFFLINE power SUPPLY / Saratov S. K., Averin, A. A.; HPE "Chelyabinsk state Agroengineering University. Publ. 27.05.2008), which for the purpose of reducing the consumption of fossil fuels by the use of wind energy and expand the technological capabilities of the installation, improve the quality of electricity contains a wind power installation and the internal combustion engine (ice) equipped with starters and power control of the internal combustion engine. In the period of insufficient strength of the wind engine compensates for the lack of the power turbine, providing a reliable supply of electricity to the consumer. However, in the case of the schema under consideration PTU+wind turbines this method of compensating the power turbine is unacceptable, because here the wind turbine produces in a local network unregulated electricity, so when the wind gusts are possible "throws" voltage and power (lasting from fractions of seconds to several minutes) both upward and downward. Moreover, when multiple wind turbines as part of microelectrical (WPP), the voltage drops and power from each wind turbine can be overlaid on each other with increasing their amplitude. Differences ("beating") voltage and power in the network will cause the unsteadiness of work connected to backup generator power, and through him vliyate on the work of the backup power source, reducing the effectiveness (efficiency) of his work. It can also cause damage to the backup power source (i.e. generator) with a decrease of its efficiency and reliability or even complete failure, which could have very negative consequences for the school owing to a sharp decrease of the steam temperature. In addition, due to the inertia operation of the backup power source is not able to provide exact compensation of fluctuations in the power turbine, resulting oscillatory superheat/subcooling of steam before the turbine. This in turn will cause additional thermal and dynamic loads on the elements (especially the blades) of the turbine with a reduction of its efficiency and reliability and subsequent failure. It is necessary to exclude the possible influence of instability of the power turbine for back-up power source of the Heater vocational schools, while ensuring a reliable supply of PETN PTU required amount of power and electricity during periods of weak winds and stationary operation of the reserve source of energy with a corresponding increase of its efficiency, reliability and durability. To exclude the possibility of emergence of a situation of insufficiency of the power turbine to supply power to the heating element PTU this teploelektronagrevatel switch powered by a backup source of electricity�AI at lower power wind turbines up to 10% of the level above the power of heating element. It is proposed in the method of operation of steam-turbine plant, comprising the overheated steam through teploelektronagrevatel (PETN), driven by a power generating wind turbines, and the subsequent expansion of the steam in the turbine, switch Teng PTU fully powered from the secondary (backup) source of electricity while reducing power wind turbines up to 10% of the level above the power of heating element. Fig. 1 shows a diagram of an apparatus that implements the proposed method. The plant comprises a steam boiler 1, teploelektronagrevatel 2, power generating turbine 3, the steam turbine 4, an electric switch 5 and the backup power source 6. At high wind speed the power output of wind turbines, enough to the heating element 2 was capable of superheating the steam to the design values of temperature. In this case, the heating element 2 is located in the base of the power consumption of the wind turbine and the excess (over power the heating elements to the electrical power of the wind turbine is channeled to power the heating element, the heating network water before the boiler 7, reducing fuel consumption in the boiler. When there is insufficient (weak) strength of the wind, when the power output of the wind turbine, less power PETN, PETN PTU selector switch 5 to switch on power from an additional (redundant) power source, thereby to provide a stationary (stable�th) mode as a backup power source, and PTU with maximum efficiency, reliability and durability of their work. However, to achieve absolute reliability of the components of the Heater 2 electric power switch on the power source is proactive while reducing power wind turbines up to 10% of the level above the power of heating element 2. This is necessary to prevent the possibility of emergence of a situation of insufficiency of the power turbine to supply power to the heating element PTU because of possible sharp (within fractions of a second) of power fluctuations of wind turbines in the range of 5-10% of its capacity. There is also the reverse process: when reaching a 10% reserve power wind turbines on the power of heating element 2 is switched to power supply from wind turbines. Fig. 2 shows a diagram of an apparatus that implements the proposed method as applied to vocational school combined-cycle plant. Here in a period of weak wind generated electricity wind turbines "reset" to a heater 8 gas-turbine units (GTU), reducing the consumption of fuel in the combustion chamber. It is also possible preliminary "acceleration" backup source of electricity for what before switching on the power of teploelektronagrevatel PTU turn it on ballast load. And only when the backup power source attains the rated power and will go out on a stationary regime, it will be switched with b�eastney load on teploelektronagrevatel PTU. During the nominal mode backup power source 6 via a switch 9 (see Fig. 3) included in ballast 10. Upon reaching the stationary mode switch 9 source 6 is disconnected from the load 9, while the switch 5 switches on the power supply to the heater 2. This will allow to exclude the effect of the inertia of the backup source to ensure teploelektronagrevatel PTU required amount of electricity. Ballast may be in the form of teploelektronagrevatel, heating water in a heating system. As a backup power source can be used the electric batteries (AE) in the form of a battery and capacitor batteries, flywheel, pumped storage, pneumatic AE, fuel cell akkumulirovannaya hydrogen and the other of the battery power and power from fossil - engine, diesel, gas turbine, combined cycle, fuel cell, etc Teploelektronagrevatel can run tubular, inductive, electrode, plasma, etc. The proposed method can be applied to vocational schools, working in local small power systems and connected to the power system of the country. 1. A method of operating a steam turbine �apparatus, including overheated steam through teploelektronagrevatel powered from a power generating wind turbines, and the subsequent expansion of the steam in the turbine, characterized in that teploelektronagrevatel switch powered by a backup source of electricity during power reduction of the wind power installation 10% level above the power of teploelektronagrevatel. 2. A method of operating a steam turbine plant according to claim 1, characterized in that the backup power source before switching on the power of teploelektronagrevatel include on ballast load. 3. A method of operating a steam turbine plant according to claim 1 or 2, characterized in that as a backup power source using the battery power. 4. A method of operating a steam turbine plant according to claim 1 or 2, characterized in that as a backup source of electricity is used by power plants on fossil fuel.
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