CN204615408U - A kind of Power Output for Wind Power Field control system - Google Patents

A kind of Power Output for Wind Power Field control system Download PDF

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Publication number
CN204615408U
CN204615408U CN201520283023.8U CN201520283023U CN204615408U CN 204615408 U CN204615408 U CN 204615408U CN 201520283023 U CN201520283023 U CN 201520283023U CN 204615408 U CN204615408 U CN 204615408U
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wind
module
grid
power
blower fan
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范征
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power conversion electric or electronic aspects

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Abstract

A kind of Power Output for Wind Power Field control system, this system comprises multiple separate unit controller of fan, wind park controller and dispatching patcher, and wind park controller comprises microprocessor, grid-connected dot frequency detection module, grid-connected point voltage detection module, wind energy turbine set control mode decision-making module, blower fan active distribute determination module, blower fan without distribution of work determination module, power module and communication module; Wind park controller is connected with multiple separate unit controller of fan, dispatching patcher respectively; Described wind park controller is used for carrying out COMPREHENSIVE CALCULATING analysis to Access Network side electric information and blower fan electric information, the reference value of the total active power of wind energy turbine set is provided according to given frequency/meritorious droop control, the change of compensation network frequency, according to the sagging reference value providing the total reactive power of wind energy turbine set of given Voltage-Reactive Power, support line voltage, and send meritorious exert oneself instruction and idle instruction of exerting oneself to wind turbine by described multiple separate unit controller of fan; The unified cooperation control of active power of wind power field and reactive power can be realized, improve wind farm grid-connected characteristic.

Description

A kind of Power Output for Wind Power Field control system
Technical field
The utility model relates to a kind of generation of electricity by new energy technology, especially a kind of Power Output for Wind Power Field control system, specifically relate to and a kind ofly to exert oneself according to wind energy turbine set PCC point voltage/frequency and real-time meritorious/idle of wind energy turbine set, the unified every active power of typhoon group of motors of cooperation control wind energy turbine set and the system of reactive power.
Background technology
Along with large-scale wind power access electrical network, impact must be brought to the scheduling and controlling of electrical network, be mainly reflected in active power regulation and reactive power/voltage control, as configuration for subsequent use and scheduling problem, tackle the REACTIVE POWER/VOLTAGE support, frequency modulation problem etc. of wind farm grid-connected point (point of common coupling, PCC).Realize active power of wind power field regulate and reactive power/voltage control mainly contain two kinds of approach: one is is realized by the controlling functions of Wind turbines self, and two is by wind park controller receiving scheduling and detection signal, carry out the whole audience unify control.Because wind energy turbine set inner blower is numerous, separate unit blower fan can only control the active power of the machine and reactive power, lacks the unified coordination control strategy to active power and reactive power in wind energy turbine set.By second method, unified management and control are carried out to the Wind turbines of the whole audience, can reach and better control object.
The development of the wind energy turbine set level controller of China is also in the starting stage, does not also realize production and the application of large-scale wind power field level controller, and mostly what although there has been wind energy turbine set to install, wind park controller adopted is opened loop control, less stable.And external most wind energy turbine set have installed wind energy turbine set level controller, achieving generating and automatically to have controlled and voltage controls automatically, and can the instruction of automatic response scheduling as conventional power plant.At present, Europe some country formulated GB, require newly-built wind energy turbine set install wind park controller, and formulated corresponding standard to install wind park controller detect.In addition, for carrying out wind farm grid-connected assessment, also formulate the modeling standard of wind park controller.
China has also formulated wind-electricity integration directive/guide GB/T-19963, requires that newly-built wind energy turbine set must install wind park controller.The control strategy that research wind energy turbine set level controls not only can meet Standard, can also improve the grid-connected characteristic of wind energy turbine set, improve wind farm grid-connected stability.
Utility model content
For the problems referred to above, the utility model proposes a kind of Power Output for Wind Power Field control system, this system can make wind energy turbine set " impression " to the change of mains frequency, does not need to increase extra frequency modulation control module in each wind turbine generator; Under the prerequisite considering active power output and unit capacity, make full use of the capacity of each wind driven generator set converter, reduce the investment of reactive-load compensation equipment.
Power Output for Wind Power Field control system comprises multiple separate unit controller of fan, wind park controller and dispatching patcher, and wind park controller comprises microprocessor, grid-connected dot frequency detection module, grid-connected point voltage detection module, wind energy turbine set control mode decision-making module, blower fan active distribute determination module, blower fan without distribution of work determination module, power module and communication module;
Wind park controller is connected with multiple separate unit controller of fan, dispatching patcher respectively; Described wind park controller is used for carrying out COMPREHENSIVE CALCULATING analysis to Access Network side electric information and blower fan electric information, the reference value of the total active power of wind energy turbine set is provided according to given frequency/meritorious droop control, the change of compensation network frequency, according to the sagging reference value providing the total reactive power of wind energy turbine set of given Voltage-Reactive Power, support line voltage, and send meritorious exert oneself instruction and idle instruction of exerting oneself to wind turbine by described multiple separate unit controller of fan;
Described microprocessor is connected without distribution of work determination module, communication module with described power module, grid-connected dot frequency detection module, grid-connected point voltage detection module, blower fan active distribute determination module, blower fan respectively; Described microprocessor is used for the information that described in analyzing and processing, grid-connected dot frequency detection module, grid-connected point voltage detection module and communication module provide, by the information after process by described communication module delivers to described scheduler module, described communication module is used for providing communication interface for described wind park controller.
Grid-connected dot frequency detection module, grid-connected point voltage detection module respectively with and site be connected.
Wind park controller also comprises the idle allocation strategy module of reactive-load compensation equipment, blower fan and centralized reactive-load compensation equipment respectively with and site be connected, reactive-load compensation equipment is idle, and allocation strategy module is connected with centralized reactive-load compensation equipment.
Microprocessor, grid-connected dot frequency detection module are connected with wind energy turbine set control mode decision-making module respectively with grid-connected point voltage detection module.
Blower fan active distribute determination module, blower fan are connected with wind energy turbine set control mode decision-making module respectively without distribution of work determination module and the idle allocation strategy module of reactive-load compensation equipment.
Compared with prior art, the utility model has following beneficial effect:
(1) controlled by meritorious/frequency droop, the utility model can make wind energy turbine set " impression " to the change of mains frequency, and not needing increases extra frequency modulation control module in each wind turbine generator.
(2) the utility model is under the prerequisite considering active power output and unit capacity, makes full use of the capacity of each wind driven generator set converter, reduces the investment of reactive-load compensation equipment.
(3) every typhoon power generator is made according to the change of real-time meritorious compensation network voltage of exerting oneself, can not affect the normal operation of Wind turbines simultaneously, achieve the cooperation control of meritorious/reactive power.
(4) the utility model achieves wind energy turbine set and gains merit/the closed-loop control of reactive power, and control performance is high, good stability.
(5) the utility model strategy is practical, is easy to Project Realization, and not needing increases extra auxiliary equipment.
(6) the utility model contributes to the grid-connected characteristic improving Wind turbines, makes wind-powered electricity generation better support operation of power networks.
Accompanying drawing explanation
Fig. 1 is wind energy turbine set control block diagram;
Fig. 2 is that wind energy turbine set frequency is gained merit droop control curve;
Fig. 3 is wind energy turbine set voltage power-less droop control curve;
Fig. 4 is Power Output for Wind Power Field control system block diagram
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Power Output for Wind Power Field control system comprises multiple separate unit controller of fan, wind park controller and dispatching patcher, and wind park controller comprises microprocessor, grid-connected dot frequency detection module, grid-connected point voltage detection module, wind energy turbine set control mode decision-making module, blower fan active distribute determination module, blower fan without distribution of work determination module, power module and communication module; Wind park controller is connected with multiple separate unit controller of fan, dispatching patcher respectively; Described wind park controller is used for carrying out COMPREHENSIVE CALCULATING analysis to Access Network side electric information and blower fan electric information, the reference value of the total active power of wind energy turbine set is provided according to given frequency droop control curve of gaining merit, the change of compensation network frequency, the reference value of the total reactive power of wind energy turbine set is provided according to given voltage power-less droop control curve, support line voltage, and send meritorious exert oneself instruction and idle instruction of exerting oneself to wind turbine by described multiple separate unit controller of fan; Described microprocessor is connected without distribution of work determination module, communication module with described power module, grid-connected dot frequency detection module, grid-connected point voltage detection module, blower fan active distribute determination module, blower fan respectively; Described microprocessor is used for the information that described in analyzing and processing, grid-connected dot frequency detection module, grid-connected point voltage detection module and communication module provide, by the information after process by described communication module delivers to described dispatching patcher, described communication module is used for providing communication interface for described wind park controller.
Grid-connected dot frequency detection module, grid-connected point voltage detection module respectively with and site be connected.
Wind park controller also comprises the idle allocation strategy module of reactive-load compensation equipment, blower fan and centralized reactive-load compensation equipment respectively with and site be connected, reactive-load compensation equipment is idle, and allocation strategy module is connected with centralized reactive-load compensation equipment.
Microprocessor, grid-connected dot frequency detection module are connected with wind energy turbine set control mode decision-making module respectively with grid-connected point voltage detection module.
Blower fan active distribute determination module, blower fan are connected with wind energy turbine set control mode decision-making module respectively without distribution of work determination module and the idle allocation strategy module of reactive-load compensation equipment.
Finally should be noted that: above embodiment is only for illustration of the technical scheme of the application but not the restriction to its protection range; although with reference to above-described embodiment to present application has been detailed description; those of ordinary skill in the field are to be understood that: those skilled in the art still can carry out all changes, amendment or equivalent replacement to the embodiment of application after reading the application; but these change, revise or be equal to replacement, all applying within the claims awaited the reply.

Claims (5)

1. a Power Output for Wind Power Field control system, this system comprises multiple separate unit controller of fan, wind park controller and dispatching patcher, and wind park controller comprises microprocessor, grid-connected dot frequency detection module, grid-connected point voltage detection module, wind energy turbine set control mode decision-making module, blower fan active distribute determination module, blower fan without distribution of work determination module, power module and communication module; Wind park controller is connected with multiple separate unit controller of fan, dispatching patcher respectively; Described wind park controller is used for carrying out COMPREHENSIVE CALCULATING analysis to Access Network side electric information and blower fan electric information, the reference value of the total active power of wind energy turbine set is provided according to given frequency droop control curve of gaining merit, the change of compensation network frequency, the reference value of the total reactive power of wind energy turbine set is provided according to given voltage power-less droop control curve, support line voltage, and send meritorious exert oneself instruction and idle instruction of exerting oneself to wind turbine by described multiple separate unit controller of fan; Described microprocessor is connected without distribution of work determination module, communication module with described power module, grid-connected dot frequency detection module, grid-connected point voltage detection module, blower fan active distribute determination module, blower fan respectively; Described microprocessor is used for the information that described in analyzing and processing, grid-connected dot frequency detection module, grid-connected point voltage detection module and communication module provide, by the information after process by described communication module delivers to described dispatching patcher, described communication module is used for providing communication interface for described wind park controller.
2. a kind of Power Output for Wind Power Field control system as claimed in claim 1, grid-connected dot frequency detection module, grid-connected point voltage detection module respectively with and site be connected.
3. a kind of Power Output for Wind Power Field control system as claimed in claim 1, wind park controller also comprises the idle allocation strategy module of reactive-load compensation equipment, blower fan and centralized reactive-load compensation equipment respectively with and site be connected, reactive-load compensation equipment is idle, and allocation strategy module is connected with centralized reactive-load compensation equipment.
4. a kind of Power Output for Wind Power Field control system as claimed in claim 1, microprocessor, grid-connected dot frequency detection module are connected with wind energy turbine set control mode decision-making module respectively with grid-connected point voltage detection module.
5. a kind of Power Output for Wind Power Field control system as claimed in claim 3, blower fan active distribute determination module, blower fan are connected with wind energy turbine set control mode decision-making module respectively without distribution of work determination module and the idle allocation strategy module of reactive-load compensation equipment.
CN201520283023.8U 2015-05-05 2015-05-05 A kind of Power Output for Wind Power Field control system Expired - Fee Related CN204615408U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105762841A (en) * 2016-03-18 2016-07-13 清华大学 Parallel virtual synchronous generator distributed coordinated operation control method and system
CN106505613A (en) * 2016-11-01 2017-03-15 科诺伟业风能设备(北京)有限公司 A kind of wind power controller
CN114221354A (en) * 2021-12-27 2022-03-22 上海电气风电集团股份有限公司 Power control method and system for wind power plant and readable storage medium

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105762841A (en) * 2016-03-18 2016-07-13 清华大学 Parallel virtual synchronous generator distributed coordinated operation control method and system
CN105762841B (en) * 2016-03-18 2017-12-15 清华大学 A kind of parallel virtual synchronous generator distributed collaboration progress control method and system
CN106505613A (en) * 2016-11-01 2017-03-15 科诺伟业风能设备(北京)有限公司 A kind of wind power controller
CN106505613B (en) * 2016-11-01 2019-05-17 科诺伟业风能设备(北京)有限公司 A kind of wind power controller
CN114221354A (en) * 2021-12-27 2022-03-22 上海电气风电集团股份有限公司 Power control method and system for wind power plant and readable storage medium

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