CN206471833U - A kind of separate unit fired power generating unit electrochemical energy storage aids in frequency modulation device - Google Patents
A kind of separate unit fired power generating unit electrochemical energy storage aids in frequency modulation device Download PDFInfo
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- CN206471833U CN206471833U CN201720219597.8U CN201720219597U CN206471833U CN 206471833 U CN206471833 U CN 206471833U CN 201720219597 U CN201720219597 U CN 201720219597U CN 206471833 U CN206471833 U CN 206471833U
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Abstract
Frequency modulation device is aided in the utility model discloses a kind of separate unit fired power generating unit electrochemical energy storage, including electrochemical energy storage device, energy-storage battery energy balance management system, energy storage auxiliary frequency modulation control device, two way convertor and transformer, energy storage auxiliary frequency modulation control device is used for the AGC instructions sent according to electrochemical energy storage device state, control unit and the running status control electrochemical energy storage device of fired power generating unit first carries out corresponding actions；When AGC instructions are lifting/lowering load instruction, electrochemical energy storage device correspondingly carries out putting/charging, and is instructed with the output quick response AGC for realizing fired power generating unit；Electrochemical energy storage device is connected with energy-storage battery energy balance management system and two way convertor respectively, and station service bus of the transformer respectively with two way convertor and fired power generating unit is connected.The utility model is when power network needs lifting/lowering load frequency modulation, and priority acccess control electrochemical energy storage device carries out corresponding actions, and governing speed is fast, and the response time is short, and degree of regulation is high.
Description
Technical field
The utility model is related to thermoelectricity technical field, and more particularly to a kind of separate unit fired power generating unit electrochemical energy storage auxiliary is adjusted
Frequency device.
Background technology
Fired power generating unit is powered by burning coal for power network, in actual applications, and ripple can occur for the load of power network, frequency
It is dynamic, in order to the load of power network, frequency be maintained in setting range, it is necessary to adjust exerting oneself and relevant device for fired power generating unit in real time
The method of operation, i.e. fired power generating unit output electricity power, existing fired power generating unit is sent to fire receiving grid dispatching center
Phase can be carried out after AGC (Automatic Generation Control, the Automatic Generation Control) instructions of power plant's telemechanical apparatus
The action answered, to ensure that hair power follows power network AGC to instruct to fired power generating unit in fact.
Existing fired power generating unit needs the main and auxiliary machine equipment start and stop and action of separate unit fired power generating unit when carrying out AGC frequency modulation.
On the one hand, the main and auxiliary machine equipment governing speed of fired power generating unit of the prior art is slow, and the response time is long, and degree of regulation is low, adjustment
The process required time that it exports power to the preset instructions power of electricity is longer.Therefore, cause fired power generating unit load can not quickly,
In time, accurate responsive electricity grid AGC instruction, while larger to the impact of power network when regenerative resource is connected to the grid, if now according to
By frequency modulation in the fired power generating unit short time, then difficulty is larger.On the other hand, if power network AGC instruction fluctuations are frequent, thermoelectricity can be caused
The main and auxiliary machine equipment frequent start-stop of unit, unit parameter big ups and downs cause under main and auxiliary machine equipment serious wear, service life
Drop, equipment failure rate is higher, directly affects fired power generating unit safe and stable operation, and can also cause generator set desulfurization, out of stock control difficult
Degree is increased.
Therefore, how to provide a kind of scheme for solving above-mentioned technical problem is that those skilled in the art need solution at present
Problem.
Utility model content
The purpose of this utility model is to provide a kind of separate unit fired power generating unit electrochemical energy storage auxiliary frequency modulation device, governing speed
It hurry up, the response time is short, degree of regulation is high, can effectively solve the problem that fossil power plant auxiliary engine of the unit caused by response AGC instructions is set
Standby, main vapour pitch frequent start-stop, action, reduce equipment attrition, and main, applying equipment service life increase, fault rate are reduced, reduced
Generator set desulfurization, denitration control difficulty and spray ammonia usage amount, the nitrogen oxides of reduction unit discharge；Reduce boiler operating parameter frequent
Acute variation, gentle air distribution reduces generator tube abrasion, prolonged boiler safe operation time；Regenerative resource is reduced to be incorporated to
The impact that power network can be netted to electricity.
In order to solve the above technical problems, the utility model, which provides a kind of separate unit fired power generating unit electrochemical energy storage, aids in frequency modulation
Device, including electrochemical energy storage device, energy-storage battery energy balance management system, energy storage auxiliary frequency modulation control device, two-way change
Device and transformer are flowed, wherein：
Energy storage auxiliary frequency modulation control device respectively with the energy-storage battery energy balance management system, fired power generating unit
Control unit and two way convertor connection, for the AGC sent according to electrochemical energy storage device state, described control unit
The running status of instruction and fired power generating unit controls the electrochemical energy storage device first to carry out corresponding actions；When AGC instructions are
During lifting/lowering load instruction, the electrochemical energy storage device correspondingly carries out putting/charging, to realize the output of the fired power generating unit
Quick response AGC is instructed；
The electrochemical energy storage device respectively with the energy-storage battery energy balance management system and the two way convertor
Connection, station service bus of the transformer respectively with the two way convertor and fired power generating unit is connected.
Preferably, the electrochemical energy storage device is LiFePO4 power type battery.
Preferably, the electrochemical energy storage device is ternary lithium battery.
Preferably, described control unit is distribution type control system DCS.
The utility model provides a kind of separate unit fired power generating unit electrochemical energy storage and aids in frequency modulation device, including electrochemical energy storage
Device, energy-storage battery energy balance management system, energy storage auxiliary frequency modulation control device, two way convertor and transformer, wherein, storage
Can aid in frequency modulation control device respectively with energy-storage battery energy balance management system, the control unit of fired power generating unit and Bidirectional variable-flow
Device is connected, for the AGC instructions and the running status control of fired power generating unit sent according to electrochemical energy storage device state, control unit
Electrochemical energy storage device processed first carries out corresponding actions；When AGC instructions are lifting/lowering load instruction, electrochemical energy storage device is corresponding
Ground put/charge, and is instructed with realizing that the load of fired power generating unit exports quick response AGC；Electrochemical energy storage device respectively with storage
Can energy content of battery balancing management system and two way convertor connection, transformer respectively with two way convertor and the station-service of fired power generating unit
Goddess of lightning's line is connected.
It can be seen that, the utility model provide separate unit fired power generating unit electrochemical energy storage auxiliary frequency modulation device, power network need rise/
During load down frequency modulation, priority acccess control electrochemical energy storage device carries out corresponding actions, and fast with governing speed, the response time is short, adjusts
The high advantage of precision is saved, can effectively solve the problem that unit because responding the fossil power plant auxiliary engine equipment caused by AGC is instructed, main vapour pitch
Frequent start-stop, action, reduce equipment attrition, and main, applying equipment service life increase, fault rate reduce, reduce generator set desulfurization, take off
Nitre controls difficulty and spray ammonia usage amount, the nitrogen oxides of reduction unit discharge；The frequent acute variation of boiler operating parameter is reduced, is put down
Slow air distribution, reduces generator tube abrasion, prolonged boiler safe operation time；Reducing that regenerative resource is connected to the grid can net to electricity
Impact.
Brief description of the drawings
, below will be to prior art and embodiment in order to illustrate more clearly of the technical scheme in the utility model embodiment
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only of the present utility model
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other accompanying drawings.
Fig. 1 aids in the structural representation of frequency modulation device for a kind of separate unit fired power generating unit electrochemical energy storage that the utility model is provided
Figure；
Fig. 2 aids in the application drawing of frequency modulation device for a kind of separate unit fired power generating unit electrochemical energy storage that the utility model is provided.
Embodiment
Core of the present utility model is to provide a kind of separate unit fired power generating unit electrochemical energy storage auxiliary frequency modulation device, governing speed
It hurry up, the response time is short, can effectively solve the problem that unit because responding the fossil power plant auxiliary engine equipment caused by AGC is instructed, main vapour pitch
Frequent start-stop, action, reduce equipment attrition, and main, applying equipment service life increase, fault rate reduce, reduce generator set desulfurization, take off
Nitre controls difficulty and spray ammonia usage amount, the nitrogen oxides of reduction unit discharge；The frequent acute variation of boiler operating parameter is reduced, is put down
Slow air distribution, reduces generator tube abrasion, prolonged boiler safe operation time；Reducing that regenerative resource is connected to the grid can net to electricity
Impact.
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
Fig. 1 is refer to, Fig. 1 aids in frequency modulation device for a kind of separate unit fired power generating unit electrochemical energy storage that the utility model is provided
Structural representation, the device include electrochemical energy storage device 1, energy-storage battery energy balance management system 2, energy storage auxiliary frequency modulation
Control device 3, two way convertor 4 and transformer 5, wherein：
Energy storage aids in frequency modulation control 3 control list respectively with energy-storage battery energy balance management system 2, fired power generating unit of device
Member and two way convertor 4 are connected, for the AGC instructions sent according to the state of electrochemical energy storage device 1, control unit and thermal motor
The running status control electrochemical energy storage device 1 of group first carries out corresponding actions；When AGC instructions are lifting/lowering load instruction, electrification
Learn energy storage device 1 correspondingly to carry out putting/charging, instructed with the output quick response AGC for realizing fired power generating unit；
Electrochemical energy storage device 1 is connected with energy-storage battery energy balance management system 2 and two way convertor 4 respectively, transformation
Station service bus of the device 5 respectively with two way convertor 4 and fired power generating unit is connected.
Specifically, the running status of fired power generating unit here includes the current loads and operating mode of fired power generating unit.Energy-storage battery
Energy balance management system 2 is able to record that and manages the state of electrochemical energy storage device 1.
In actual applications, energy storage auxiliary frequency modulation control device 3 collection energy content of battery balancing management system can be carried in real time
AGC instructions (power plant's telemechanical apparatus is sent to control unit) that the state of the electrochemical energy storage device 1 of confession, control unit are sent and
The running status of fired power generating unit, and state, the AGC instructions of control unit transmission and thermal motor according to electrochemical energy storage device 1
The running status of group controls the electrochemical energy storage device 1 correspondingly to be acted.
Specifically, the state of electrochemical energy storage device 1 here can include electrochemical energy storage device 1 whether failure and electricity
Electricity of chemical energy storage device 1 etc..
As a kind of preferred embodiment, in order to protect electrochemical energy storage device 1, it is to avoid electrochemical energy storage device 1 is overcharged
Cross and put, when power network carries out frequency modulation, can the fault-free of electrochemical energy storage device 1 and its capacity within a preset range on the premise of
Charge/discharge is carried out to electrochemical energy storage device 1, specifically, preset range here for example can be total for electrochemical energy storage device 1
The 20%-90% of capacity, the application does not do special limit for the concrete numerical value of the preset range of the capacity of electrochemical energy storage device 1
It is fixed, determined according to actual conditions.
In actual applications, energy storage auxiliary frequency modulation control device 3 can in real time the state of collection electrochemical energy storage device 1,
AGC instructions and the running status of fired power generating unit that control unit is sent, when AGC is that load up is instructed, energy storage auxiliary frequency modulation control
Device 3 processed first determine whether electrochemical energy storage device 1 whether failure, if failure, energy storage auxiliary frequency modulation control device 3 is sent not
Action command, energy storage auxiliary frequency modulation device is failure to actuate, while carrying out information exchange, control unit with the control unit of fired power generating unit
Control fired power generating unit increase is exerted oneself, and is instructed with the output quick response AGC for realizing fired power generating unit, if electrochemical energy storage device 1
Normally, then whether within a preset range to continue to judge the capacity of electrochemical energy storage device 1, if it is, energy storage auxiliary frequency modulation control
Device 3 processed directly controls electrochemical energy storage device 1 first to carry out electric discharge and assists fired power generating unit, to realize the load follow of fired power generating unit
AGC is instructed.Otherwise, energy storage auxiliary frequency modulation control device 3 is failure to actuate, but can be interacted with the control unit of fired power generating unit, is controlled
Unit control fired power generating unit processed is exerted oneself.
When AGC be load down instruct when, first determine whether electrochemical energy storage device 1 whether failure, if failure, energy storage is auxiliary
Frequency modulation control device 3 is helped to send instruction of being failure to actuate, energy storage auxiliary frequency modulation device is failure to actuate, while the control unit with fired power generating unit
Information exchange is carried out, control unit control fired power generating unit, which is reduced, exerts oneself, to realize that fired power generating unit load follow AGC is instructed, if
Normally, then whether within a preset range to continue to judge the capacity of electrochemical energy storage device 1, if it is, energy storage auxiliary frequency modulation control
Device 3 processed directly control electrochemical energy storage device 1 is charged as load, to realize that fired power generating unit load follow AGC is instructed.
Otherwise, electrochemical energy storage device 1 is failure to actuate, and the control unit control fired power generating unit of fired power generating unit carries out corresponding actions, to ensure
The load follow AGC instructions of fired power generating unit.
As a kind of preferred embodiment, electrochemical energy storage device 1 is LiFePO4 power type battery.
Specifically, LiFePO4 power-type electrochemical energy storage device 1 has that long lifespan, charging are quick, capacity is big, security
High, environmental protection, nontoxic pollution-free and the low advantage of cost.
As a kind of preferred embodiment, electrochemical energy storage device 1 is ternary lithium battery.
Ternary lithium battery has the advantages that cost is low, capacity is big, long lifespan.
In addition, the electrochemical energy storage device 1 in the application can also be other kinds of electrochemical energy storage device, this practicality
It is new not to be particularly limited herein, the purpose of this utility model can be realized.
As a kind of preferred embodiment, control unit is distribution type control system DCS.
In addition, control unit here can also be other kinds of control unit, the utility model is not done especially herein
Restriction.
Specifically, Fig. 2, a kind of separate unit fired power generating unit electrochemical energy storage auxiliary that Fig. 2 provides for the utility model be refer to
The application drawing of frequency modulation device.
The utility model provides a kind of separate unit fired power generating unit electrochemical energy storage and aids in frequency modulation device, including electrochemical energy storage
Device, energy-storage battery energy balance management system, energy storage auxiliary frequency modulation control device, two way convertor and transformer, wherein, storage
Can aid in frequency modulation control device respectively with energy-storage battery energy balance management system, the control unit of fired power generating unit and Bidirectional variable-flow
Device is connected, for the AGC instructions and the running status control of fired power generating unit sent according to electrochemical energy storage device state, control unit
Electrochemical energy storage device processed first carries out corresponding actions；When AGC instructions are lifting/lowering load instruction, electrochemical energy storage device is corresponding
Ground put/charge, to realize the fast frequency hopping of power network；Electrochemical energy storage device is managed with energy-storage battery energy balance respectively
System and two way convertor connection, station service bus of the transformer respectively with two way convertor and fired power generating unit are connected.
It can be seen that, the utility model provide separate unit fired power generating unit electrochemical energy storage auxiliary frequency modulation device, power network need rise/
During load down frequency modulation, priority acccess control electrochemical energy storage device carries out corresponding actions, and fast with governing speed, the response time is short, adjusts
The high advantage of precision is saved, can effectively solve the problem that unit because responding the fossil power plant auxiliary engine equipment caused by AGC is instructed, main vapour pitch
Frequent start-stop, action, reduce equipment attrition, and main, applying equipment service life increase, fault rate reduce, reduce generator set desulfurization, take off
Nitre controls difficulty and spray ammonia usage amount, the nitrogen oxides of reduction unit discharge；The frequent acute variation of boiler operating parameter is reduced, is put down
Slow air distribution, reduces generator tube abrasion, prolonged boiler safe operation time；Reducing that regenerative resource is connected to the grid can net to electricity
Impact.
It should be noted that in this manual, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can in other embodiments be realized in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (4)
1. a kind of separate unit fired power generating unit electrochemical energy storage aids in frequency modulation device, it is characterised in that including electrochemical energy storage device, storage
Energy energy content of battery balancing management system, energy storage auxiliary frequency modulation control device, two way convertor and transformer, wherein：
The control of the energy storage auxiliary frequency modulation control device respectively with the energy-storage battery energy balance management system, fired power generating unit
Unit and two way convertor connection, for the AGC instructions sent according to electrochemical energy storage device state, described control unit
The electrochemical energy storage device is controlled first to carry out corresponding actions with the running status of fired power generating unit；When AGC instructions are lifting/lowering
During load instruction, the electrochemical energy storage device correspondingly carries out putting/charging, and is quickly rung with the output for realizing the fired power generating unit
AGC is answered to instruct；
The electrochemical energy storage device is connected with the energy-storage battery energy balance management system and the two way convertor respectively,
Station service bus of the transformer respectively with the two way convertor and fired power generating unit is connected.
2. separate unit fired power generating unit electrochemical energy storage as claimed in claim 1 aids in frequency modulation device, it is characterised in that the electrification
Energy storage device is LiFePO4 power type battery.
3. separate unit fired power generating unit electrochemical energy storage as claimed in claim 1 aids in frequency modulation device, it is characterised in that the electrification
Energy storage device is ternary lithium battery.
4. separate unit fired power generating unit electrochemical energy storage as claimed in claim 1 aids in frequency modulation device, it is characterised in that the control
Unit is distribution type control system DCS.
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| CN107528351A (en) * | 2017-10-10 | 2017-12-29 | 赫普科技发展（北京）有限公司 | A kind of power grid frequency modulation system based on electric compression heat pump for thermal power plant |
| CN107528330A (en) * | 2017-10-10 | 2017-12-29 | 赫普科技发展（北京）有限公司 | A kind of power grid frequency modulation system based on electric compression refigerating machine group for thermal power plant |
| CN107612001A (en) * | 2017-10-10 | 2018-01-19 | 赫普科技发展（北京）有限公司 | A kind of electric compressor for thermal power plant and the united power grid frequency modulation system of electric power storage facility |
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| CN109412185A (en) * | 2018-12-17 | 2019-03-01 | 万克能源科技有限公司 | A kind of energy storage device, control system and control method improving power plant AGC frequency modulation performance |
| CN109936151A (en) * | 2018-08-27 | 2019-06-25 | 上海明华电力技术工程有限公司 | A kind of control method participating in fired power generating unit primary frequency modulation by micro-grid system |
| CN112212313A (en) * | 2020-09-21 | 2021-01-12 | 东方电气集团东方锅炉股份有限公司 | Fluidized bed boiler power generation system with energy storage frequency modulation and emergency water replenishing functions |
| CN112803435A (en) * | 2020-12-31 | 2021-05-14 | 上海外高桥第三发电有限责任公司 | System and control method for auxiliary frequency modulation of thermal power plant |
| CN113162068A (en) * | 2021-04-08 | 2021-07-23 | 深圳供电局有限公司 | Energy storage system and peak-shaving frequency modulation system |
| CN113964851A (en) * | 2021-10-26 | 2022-01-21 | 西安热工研究院有限公司 | Intelligent control system for energy storage participation in primary frequency modulation of thermal power generating unit |
| CN114825484A (en) * | 2022-06-29 | 2022-07-29 | 西安热工研究院有限公司 | Frequency modulation system and method based on energy storage of thermal power electronic transformer |
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| CN107528330B (en) * | 2017-10-10 | 2023-11-07 | 赫普能源环境科技股份有限公司 | Power grid frequency modulation system based on voltage reduction refrigeration unit for thermal power plant |
| CN107528330A (en) * | 2017-10-10 | 2017-12-29 | 赫普科技发展（北京）有限公司 | A kind of power grid frequency modulation system based on electric compression refigerating machine group for thermal power plant |
| CN107612001A (en) * | 2017-10-10 | 2018-01-19 | 赫普科技发展（北京）有限公司 | A kind of electric compressor for thermal power plant and the united power grid frequency modulation system of electric power storage facility |
| CN107528351A (en) * | 2017-10-10 | 2017-12-29 | 赫普科技发展（北京）有限公司 | A kind of power grid frequency modulation system based on electric compression heat pump for thermal power plant |
| CN107612001B (en) * | 2017-10-10 | 2023-12-29 | 赫普能源环境科技股份有限公司 | Power grid frequency modulation system for combining electric compressor with electric power storage facility of thermal power plant |
| CN109936151A (en) * | 2018-08-27 | 2019-06-25 | 上海明华电力技术工程有限公司 | A kind of control method participating in fired power generating unit primary frequency modulation by micro-grid system |
| CN108879745A (en) * | 2018-09-12 | 2018-11-23 | 党祺云 | A kind of comprehensive generating system and method improving peak load regulation economy |
| CN108879745B (en) * | 2018-09-12 | 2024-03-22 | 党祺云 | Comprehensive power generation system and method for improving unit peak regulation economy |
| CN109412185A (en) * | 2018-12-17 | 2019-03-01 | 万克能源科技有限公司 | A kind of energy storage device, control system and control method improving power plant AGC frequency modulation performance |
| CN112212313A (en) * | 2020-09-21 | 2021-01-12 | 东方电气集团东方锅炉股份有限公司 | Fluidized bed boiler power generation system with energy storage frequency modulation and emergency water replenishing functions |
| CN112212313B (en) * | 2020-09-21 | 2022-07-19 | 东方电气集团东方锅炉股份有限公司 | Fluidized bed boiler power generation system with energy storage frequency modulation and emergency water replenishing functions |
| CN112803435A (en) * | 2020-12-31 | 2021-05-14 | 上海外高桥第三发电有限责任公司 | System and control method for auxiliary frequency modulation of thermal power plant |
| CN113162068A (en) * | 2021-04-08 | 2021-07-23 | 深圳供电局有限公司 | Energy storage system and peak-shaving frequency modulation system |
| CN113964851A (en) * | 2021-10-26 | 2022-01-21 | 西安热工研究院有限公司 | Intelligent control system for energy storage participation in primary frequency modulation of thermal power generating unit |
| CN114825484A (en) * | 2022-06-29 | 2022-07-29 | 西安热工研究院有限公司 | Frequency modulation system and method based on energy storage of thermal power electronic transformer |
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