CN202759240U - Thermal-energy-storage power generation system for wind power plant - Google Patents
Thermal-energy-storage power generation system for wind power plant Download PDFInfo
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- CN202759240U CN202759240U CN2012200394298U CN201220039429U CN202759240U CN 202759240 U CN202759240 U CN 202759240U CN 2012200394298 U CN2012200394298 U CN 2012200394298U CN 201220039429 U CN201220039429 U CN 201220039429U CN 202759240 U CN202759240 U CN 202759240U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
Provided is a thermal-energy-storage power generation system for a wind power plant. A wind generating set (201) is respectively connected with a transformer (213) and a power controller (202) to supply a part of electric energy to a power grid and the rest electric energy to the power controller. The power controller is connected with an electric heater (206) to adjust the input power of the electric heater in real time. The electric heater is connected with a high-temperature heat storage tank (207), a low-temperature heat storage tank (208) and a steam generator (209), respectively. A heat storage medium absorbs heat from the electric heater and is pumped into the high-temperature heat storage tank for energy storage purpose after the temperature rises. When the electric energy is needed, the high-temperature heat storage medium enters into the stream generator to change water into high-temperature high-pressure steam. The stream enters into a stream turbine (211) to do work so as to drive the stream turbine to rotate, thereby driving a generating set (212) to generate power.
Description
Technical field
The utility model belongs to a kind of energy storage and application system, is mainly used in the electrical power storage of wind power plant.This system is thermal energy storage with the electric energy conversion that the wind-powered electricity generation unit sends, and when needing heat energy is converted into electric energy.
Background technology
Wind turbine generator is electric energy with wind energy transformation, but because randomness and the intermittence of wind-powered electricity generation, cause wind-powered electricity generation to be difficult to be dissolved by electrical network, especially wind-powered electricity generation installation scale continues to increase, wind-powered electricity generation is in the ever-increasing situation of electric power system installation proportion, wind-powered electricity generation brings huge challenge to power grid security, stable, economical operation, and under this condition, energy storage provides solution for the wind-powered electricity generation problem of dissolving.
The technical scheme that current wind-powered electricity generation energy storage is adopted has physics energy storage scheme, comprises pumped storage, compressed-air energy storage and flywheel energy storage; Electrochemical energy storage comprises the battery energy storages such as plumbic acid, ni-mh, NI-G, lithium ion, sodium sulphur and liquid stream; Power Flow comprises superconduction, super capacitor and high-energy-density capacitance energy storage etc.Pumped storage and compressed-air energy storage are restricted to the landform of energy storage project, and the stored energy capacitance of other energy storage technology is little, and technology is immature, and cost is high.
Publication number is that the United States Patent (USP) " Storing Thermal Energy and Generating Electricity " of US2008022683 (A1) has been introduced a kind of hot energy storage and electricity generation system equally, this energy-storage system is converted into heat energy with whole wind power generations and photovoltaic generation, shortcoming is that the low and heat energy power-generating link of energy recycling efficient is used fossil fuel, produces greenhouse gas emission.
Publication number is that the patent " large-scale wind driven generator heat accumulation energy storage method and special equipment " of CN102200098A has been introduced a kind of wind-powered electricity generation heat-storing method equally, this method only relates to the introduction of heat accumulating and container, lack wind-powered electricity generation produce the method for heat energy and institute's heat accumulation can recycling.
Summary of the invention
The shortcoming that the wind-powered electricity generation stored energy application is had the landform restriction in order to overcome existing pumped storage and compressed air energy storage technology, also little for the stored energy capacitance that overcomes existing battery energy storage and Power Flow technology, immature and the high shortcoming of cost of technology, the utility model proposes and adopt heat accumulation as the technology of wind-powered electricity generation energy storage mode, not only stored energy capacitance is large, and use conveniently, flexibly, technology maturation, cheap.
For realizing the purpose of this utility model, the utility model provides a kind of wind energy turbine set hot energy-storing and power-generating system, the hot energy-storing and power-generating system of described wind energy turbine set mainly comprises wind turbine generator (201), transformer (213), transmission line (214), power controller (202), electric heater (206), high-temperature heat-storage tank (207), low temperature heat storage can (208), pre-hot heater (217), steam generator (209), steam turbine (211), generator (212), cooler (215), deaerator (216) and pump (210); Described wind turbine generator (201) a tunnel is connected with transformer (213), transmission line (214), a part of electric energy is sent into electrical network by transformer and transmission line, another road is connected with power controller (202), and all the other electric energy are sent into power controller; Power controller links to each other with electric heater (206), and control flows into the electric energy of electric heater; Electric heater is connected 207 with low temperature heat storage can (208) with the high-temperature heat-storage tank respectively) be connected, the heat-storage medium heating from the low temperature heat storage can is sent to the high-temperature heat-storage tank; Steam generator (209) is connected with the low temperature heat storage can with the high-temperature heat-storage tank respectively, and the heat-storage medium cooling from the high-temperature heat-storage tank sends back to the low temperature heat storage can, and steam generator is heating water simultaneously, and water is become high-temperature high-pressure steam; Steam generator is connected with steam turbine (211), and high-temperature high-pressure steam enters the steam turbine acting, and the pushing turbine rotation drives generator (212) generating, and heat energy is converted into electric energy, sends into electrical network through transformer and transmission line; Water vapour after the acting is drawn into cooler (215), is condensed into water, through deaerator (216) deoxidation with after preheating, again sends into steam generator.
According to an embodiment of the present utility model, described wind turbine generator is connected with power controller, electric heater successively, and the real-time control inputs of power controller is to the electrical power of electric heater.
According to an embodiment of the present utility model, the branch road that described power controller and electric heater consist of and transformer branch road consist of parallel-connection structure, and the electric energy that the wind-powered electricity generation unit sends can all be conveyed into electrical network, also can be all for energy storage, also can a part carry electrical network, all the other are used for energy storage.
According to an embodiment of the present utility model, the hot energy-storage system of described wind energy turbine set adopts high-temperature heat-storage tank and 2 heat vessel of low temperature heat storage can, all configure pre-hot heater (217) in these 2 heat storage cans, the electric energy input of pre-hot heater is connected with power controller.
According to an embodiment of the present utility model, described electric heater can independently arrange, and also can be built in the high-temperature heat-storage tank.
According to an embodiment of the present utility model, described power controller also can be made of separately AC power controller or direct current power controller AC power controller (203) and direct current power controller (204) formation in parallel.
According to an embodiment of the present utility model, described AC power controller is made of the electronic power switch element (301) of reverse parallel connection, also can be made of the bi-directional electric power electronic switching element; Described direct current power controller is entirely controlled converter (401) by three phase full bridge and is connected dc voltage controller (402) formation; This three phase full bridge is entirely controlled the converter topological structure and can be adopted multiplex and multilevel converter to realize suppressing harmonic wave and increasing the converter capacity.
According to an embodiment of the present utility model, described three phase full bridge is controlled the DC side of converter entirely can shunt capacitor or battery energy storage equipment (205), also not shunt capacitor or battery energy storage equipment (205).
According to an embodiment of the present utility model, described AC power controller (203) and direct current power controller (204) are made of the electronic power switch element, these switch elements can be triode thyristor SCR, turn-off thyristor GTO, power transistor GTR, field of electric force effect transistor P-MOSFET, insulated door gated transistors IGBT, inject and strengthen gate pole transistor I EGT, MOS control thyristor MCT, integrated gate commutated thyristor IGCT, static induction transistor SIT, static induction thyristor SITH forms.
The utility model also provides a kind of control system of described AC power controller, and described control system mainly is made of measurement module, control module and Executive Module;
Described measurement module is measured the voltage and current that wind turbine generator is sent; Described control module is carried out analyzing and processing to the output signal of described measurement module, and the AC power controller operates in the power tracking pattern, and control module is sent control signal, the current fluctuation that the electric current that flows through the AC power controller is sent with the wind-driven generator group; Executive Module is converted to control signal the pulse signal of control electronic power switch element conductive or shutoff, and pulse signal is sent to the electronic power switch element.
The utility model also provides a kind of control system of described direct current power controller, and described control system mainly is made of measurement module, control module and Executive Module;
Described measurement module is measured the voltage that wind turbine generator is sent, and electric current and three phase full bridge are controlled Converter DC-side voltage entirely; Described control module is carried out analyzing and processing to the output signal of described measurement module, three phase full bridge is entirely controlled converter and is operated in active power tracing mode and idle control model, the current fluctuation that the electric current that flows through the direct current power controller is sent with the wind-driven generator group, and the control converter provides dynamic passive compensation to electrical network; Dc voltage controller operates in the direct voltage pattern, makes direct voltage keep stable; Executive Module is converted to control signal the pulse signal of control electronic power switch element conductive or shutoff, and pulse signal is sent to the electronic power switch element.
Description of drawings
Fig. 1 is that publication number is the topology diagram of the United States Patent (USP) of US2008022683 (A1).
Fig. 2 is the topology diagram of the hot energy-storing and power-generating system of wind energy turbine set.
Fig. 3 is the topology diagram of AC power controller.
Fig. 4 is the topology diagram of direct current power controller.
Fig. 5 is the control system module principle block diagram of AC power controller.
Fig. 6 is the control system module principle block diagram of direct current power controller.
Embodiment
Below in conjunction with accompanying drawing the hot energy-storing and power-generating system of wind energy turbine set of the present utility model is described further.
Fig. 2 is the topology diagram of the hot energy-storing and power-generating system of wind energy turbine set, system's main element has wind turbine generator (201), transformer (213), transmission line (214), power controller (202), electric heater (206), high-temperature heat-storage tank (207), low temperature heat storage can (208), pre-hot heater (217), steam generator (209), steam turbine (211), generator (212), cooler (215), deaerator (216) and pump (210).
Wind turbine generator (201) is electric energy with wind energy transformation, part electric energy is delivered to electrical network by transformer (213) and transmission line (214), and another part electric energy is transported to electric heater (206) by power controller (202).
Power controller can be AC power controller (203), also can be direct current power controller (204), also can be the parallel connection of the two.
AC power controller main circuit is made of electronic power switch element (301) or the bi-directional electric power electronic component of reverse parallel connection, and its control system is made of measurement module, control module and Executive Module.Measurement module is measured the voltage and current that wind turbine generator is sent, control module is carried out analyzing and processing to the voltage and current signal, the AC power controller operates in the power tracking pattern, according to the wind turbine generator output instantaneous active power that obtains, the power instruction of this power and dispatching of power netwoks is compared, the difference of the two is the energy storage performance number, control module is sent power control signal to Executive Module, Executive Module is converted to control signal the pulse triggering signal of control electronic power switch element conductive or shutoff, and this signal is sent to the electronic power switch element.
Direct current power controller main circuit is entirely controlled converter (401) by three phase full bridge and is connected dc voltage controller (402) formation, the energy storage devices such as three phase full bridge is controlled the DC side of converter entirely can shunt capacitor, battery, its control system is made of measurement module, control module and Executive Module.Measurement module is measured the voltage that wind turbine generator is sent, and electric current and three phase full bridge are controlled Converter DC-side voltage entirely; Control module is carried out analyzing and processing to the output signal of measurement module, three phase full bridge is entirely controlled converter and is operated in active power tracing mode and idle control model, instantaneous active power according to the wind turbine generator output that obtains, the power instruction of active power and dispatching of power netwoks is compared, the difference of the two is the energy storage performance number, according to reactive power equilibrium situation that obtain and the site, control module is sent the dynamic passive compensation instruction, and control module is sent control signal is controlled converter entirely to three phase full bridge Executive Module; Dc voltage controller operates in the direct voltage pattern, makes direct voltage keep stable, and control module is sent control signal to the Executive Module of dc voltage controller; Executive Module is converted to control signal the pulse signal of control electronic power switch element conductive or shutoff, and pulse signal is sent to the electronic power switch element.
Electric heater is heat energy with unnecessary electric energy conversion, and the heat transferred heat-storage medium, the temperature of liquid heat-storage medium is raise, and becomes the high-temperature heat-storage medium, the temperature that the flow velocity of control heat-storage medium in electric heater just can be regulated heat-storage medium.
Pump (210) is sent to high-temperature heat-storage tank (207) with the high-temperature heat-storage medium, forms thermal energy storage, when the needs electric energy, the high-temperature heat-storage medium pumps into steam generator (209), heat transferred water, become the low temperature heat-storage medium, by blowback low temperature heat storage can (208).The high and low temperature heat storage can is used for storing heat-storage medium, and keeps higher adiabatic efficiency.
In steam generator, the high-temperature heat-storage medium makes heat transferred water water become high-temperature high-pressure steam, and the heat-storage medium temperature reduces, and blowback low temperature heat storage can is finished the exchange heat circulation.
High-temperature high-pressure steam imports to steam turbine (211), do work through overexpansion, heat energy is converted into mechanical energy, the pushing turbine rotation, drive coaxial generator (212) generating, heat energy is converted into electric energy, sends into electrical network through transformer (213) and transmission line (214).
Water vapour after the acting forms exhaust steam, cooling system is extracted exhaust steam out at the steam turbine exhaust outlet, and the heat exchange of process cooling system (215) is condensed into water with water vapour, deaerator (216) is removed the free oxygen in the water, and with water preheat, reenter steam generator and carry out exchange heat.
Although for complete and open clearly, with reference to specific implementations the utility model is described, but claims are not limited to this, and claims can be constructed to embody all and fall into modification and the alternate configurations that the affiliated technical field technical staff in the illustrated basic instruction of this specification can expect fully.
Claims (9)
1. hot energy-storing and power-generating system of wind energy turbine set, it is characterized in that, the hot energy-storing and power-generating system of described wind energy turbine set mainly comprises wind turbine generator (201), transformer (213), transmission line (214), power controller (202), electric heater (206), high-temperature heat-storage tank (207), low temperature heat storage can (208), pre-hot heater (217), steam generator (209), steam turbine (211), generator (212), cooler (215), deaerator (216) and pump (210); Described wind turbine generator (201) a tunnel is connected with transformer (213), transmission line (214), a part of electric energy is sent into electrical network by transformer and transmission line, another road is connected with power controller (202), and all the other electric energy are sent into power controller; Power controller links to each other with electric heater (206), and control flows into the electric energy of electric heater; Electric heater is connected 207 with low temperature heat storage can (208) with the high-temperature heat-storage tank respectively) be connected, the heat-storage medium heating from the low temperature heat storage can is sent to the high-temperature heat-storage tank; Steam generator (209) is connected with the low temperature heat storage can with the high-temperature heat-storage tank respectively, and the heat-storage medium cooling from the high-temperature heat-storage tank sends back to the low temperature heat storage can, and the steam generator heating water becomes high-temperature high-pressure steam to water; Steam generator is connected with steam turbine (211), and high-temperature high-pressure steam enters the steam turbine acting, and the pushing turbine rotation drives generator (212) generating, and heat energy is converted into electric energy, sends into electrical network through transformer and transmission line; Water vapour after the acting is drawn into cooler (215), is condensed into water, through deaerator (216) deoxidation with after preheating, again sends into steam generator.
2. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 1, it is characterized in that: described wind turbine generator is connected with power controller, electric heater successively, and the real-time control inputs of power controller is to the electrical power of electric heater.
3. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 1, it is characterized in that: the branch road that described power controller and electric heater consist of and transformer branch road consist of parallel-connection structure, the electric energy that the wind-powered electricity generation unit sends can all be conveyed into electrical network, also can be all for energy storage, also can a part carry electrical network, all the other are used for energy storage.
4. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 1, it is characterized in that: the hot energy-storage system of described wind energy turbine set adopts high-temperature heat-storage tank (207) and (208) 2 heat vessel of low temperature heat storage can, all configure pre-hot heater (217) in these 2 heat storage cans, the electric energy input of pre-hot heater is connected with power controller.
5. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 1, it is characterized in that: described electric heater (206) can independently arrange, and also can be built in the high-temperature heat-storage tank.
6. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 1, it is characterized in that: described power controller also can be made of separately AC power controller or direct current power controller AC power controller (203) and direct current power controller (204) formation in parallel.
7. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 6 is characterized in that: described AC power controller is made of the electronic power switch element (301) of reverse parallel connection, also can be made of the bi-directional electric power electronic switching element; Described direct current power controller is entirely controlled converter (401) by three phase full bridge and is connected dc voltage controller (402) formation; This three phase full bridge is entirely controlled the converter topological structure and can be adopted multiplex and multilevel converter to realize suppressing harmonic wave and increasing the converter capacity.
8. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 7, it is characterized in that: described three phase full bridge is controlled the DC side of converter entirely can shunt capacitor or battery energy storage equipment (205), also not shunt capacitor or battery energy storage equipment (205).
9. the hot energy-storing and power-generating system of wind energy turbine set as claimed in claim 6, it is characterized in that: described AC power controller (203) and direct current power controller (204) are made of the electronic power switch element, these switch elements can be triode thyristor SCR, turn-off thyristor GTO, power transistor GTR, field of electric force effect transistor P-MOSFET, insulated door gated transistors IGBT, inject and strengthen gate pole transistor I EGT, MOS control thyristor MCT, integrated gate commutated thyristor IGCT, static induction transistor SIT, static induction thyristor SITH forms.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200394298U CN202759240U (en) | 2012-02-08 | 2012-02-08 | Thermal-energy-storage power generation system for wind power plant |
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| CN2012200394298U CN202759240U (en) | 2012-02-08 | 2012-02-08 | Thermal-energy-storage power generation system for wind power plant |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573559A (en) * | 2013-11-22 | 2014-02-12 | 烟台卓越新能源科技有限公司 | Solid heat accumulating type secondary wind power generation device and control method thereof |
| CN103912452A (en) * | 2014-03-19 | 2014-07-09 | 首钢京唐钢铁联合有限责任公司 | Cogeneration method and cogeneration system for electricity, heat and water |
| CN104329132A (en) * | 2014-11-07 | 2015-02-04 | 辽宁中联能源科技有限公司 | Electric heat energy storage power generating system |
| CN105890169A (en) * | 2014-10-29 | 2016-08-24 | 辽宁绿暖科技有限公司 | Off-peak electricity energy storage heat source system |
| CN106121919A (en) * | 2016-06-24 | 2016-11-16 | 王晓岚 | A kind of electrification technique as well as stably exported by accumulation of energy |
| WO2018154186A1 (en) * | 2017-02-27 | 2018-08-30 | Ahola, Jero | Method and system for controlling energy streams |
| CN108799002A (en) * | 2017-05-01 | 2018-11-13 | 李启飞 | Wind drives the hot energy storage peak shaving formula wind generator system of mangneto |
| CN108798998A (en) * | 2017-05-01 | 2018-11-13 | 李启飞 | Wind drives mangneto Hot gas turbine electricity generation system |
| CN110199450A (en) * | 2017-01-24 | 2019-09-03 | 住友电气工业株式会社 | Energy storage system and system using variable power can be stablized |
| CN111577402A (en) * | 2020-05-28 | 2020-08-25 | 邯郸新兴发电有限责任公司 | Blast furnace gas energy storage power generation circulating system |
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2012
- 2012-02-08 CN CN2012200394298U patent/CN202759240U/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573559A (en) * | 2013-11-22 | 2014-02-12 | 烟台卓越新能源科技有限公司 | Solid heat accumulating type secondary wind power generation device and control method thereof |
| CN103573559B (en) * | 2013-11-22 | 2015-10-28 | 烟台卓越新能源科技有限公司 | Solid heat storage formula wind-force secondary electricity generation device and controlling method thereof |
| CN103912452A (en) * | 2014-03-19 | 2014-07-09 | 首钢京唐钢铁联合有限责任公司 | Cogeneration method and cogeneration system for electricity, heat and water |
| CN103912452B (en) * | 2014-03-19 | 2016-09-21 | 首钢京唐钢铁联合有限责任公司 | A kind of electricity, heat, water co-production and system |
| CN105890169A (en) * | 2014-10-29 | 2016-08-24 | 辽宁绿暖科技有限公司 | Off-peak electricity energy storage heat source system |
| CN104329132A (en) * | 2014-11-07 | 2015-02-04 | 辽宁中联能源科技有限公司 | Electric heat energy storage power generating system |
| CN106121919A (en) * | 2016-06-24 | 2016-11-16 | 王晓岚 | A kind of electrification technique as well as stably exported by accumulation of energy |
| CN110199450A (en) * | 2017-01-24 | 2019-09-03 | 住友电气工业株式会社 | Energy storage system and system using variable power can be stablized |
| CN110199450B (en) * | 2017-01-24 | 2024-01-02 | 住友电气工业株式会社 | Energy storage system and system capable of stably utilizing variable power |
| WO2018154186A1 (en) * | 2017-02-27 | 2018-08-30 | Ahola, Jero | Method and system for controlling energy streams |
| CN110337576A (en) * | 2017-02-27 | 2019-10-15 | J·阿霍拉 | For controlling the method and system of energy stream |
| US11199367B2 (en) | 2017-02-27 | 2021-12-14 | Jero AHOLA | Method and system for controlling energy streams |
| CN108799002A (en) * | 2017-05-01 | 2018-11-13 | 李启飞 | Wind drives the hot energy storage peak shaving formula wind generator system of mangneto |
| CN108798998A (en) * | 2017-05-01 | 2018-11-13 | 李启飞 | Wind drives mangneto Hot gas turbine electricity generation system |
| CN111577402A (en) * | 2020-05-28 | 2020-08-25 | 邯郸新兴发电有限责任公司 | Blast furnace gas energy storage power generation circulating system |
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