CN101917023A - Automatic control method of wind electric active power for wind farm monitoring system - Google Patents

Automatic control method of wind electric active power for wind farm monitoring system Download PDF

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Publication number
CN101917023A
CN101917023A CN2010102690357A CN201010269035A CN101917023A CN 101917023 A CN101917023 A CN 101917023A CN 2010102690357 A CN2010102690357 A CN 2010102690357A CN 201010269035 A CN201010269035 A CN 201010269035A CN 101917023 A CN101917023 A CN 101917023A
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China
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energy turbine
meritorious
wind energy
wind
control
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CN2010102690357A
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Chinese (zh)
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石磊
陈宁
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国网电力科学研究院
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Publication of CN101917023A publication Critical patent/CN101917023A/en

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    • Y02E10/763
    • 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
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation
    • Y02E40/72
    • 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
    • Y04S10/123Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources

Abstract

The invention discloses an automatic control method of wind electric active power for a wind farm monitoring system. The method is characterized by comprising the following steps of: (1) maximum output mode control; (2) plan and track mode control; and (3) adaptive adjustment mode control. The method has the advantages of ensuring good connection with a dispinterface of the power grid in China, contributing to coordinating and cooperating the wind farm connected with the power grid with the connected regional power grid to run and improving the automatic control and the management and operation level of the wind farm, along with powerful real-time power output function and operating control function of the wind farm accessed power grid.

Description

The wind-powered electricity generation active power autocontrol method that is used for the wind energy turbine set supervisory control system

Technical field

The present invention relates to a kind of wind-powered electricity generation active power autocontrol method that is used for the wind energy turbine set supervisory control system, belong to the wind energy turbine set control technology field in the generation of electricity by new energy technology.

Background technology

Over nearly 10 years, wind power generation becomes clean energy resource with fastest developing speed in the whole world with annual growth above 30%.At present, the core control technology of wind power generation is grasped abroad in enterprise's hand always, core control technologys such as the wind energy turbine set supervisory control system complete dependence on import of relevant control product such as production domesticization, unit control system, wind energy turbine set supervisory control system of still being unrealized.Along with the increase of wind energy turbine set quantity and expansion, the wind energy turbine set supervisory control system drawback of bringing to the operational management of wind energy turbine set under one's control of scale also become clear day by day.

Wind energy turbine set CSRC and tele-control system are used for operation concentrated and remote monitoring wind-powered electricity generation unit and wind energy turbine set, utilization present information and mechanics of communication, real-time collecting, analysis are also reported the wind behaviour of each wind energy turbine set and unit, wind energy turbine set operation conditions Monitoring Data, automatically or according to the instruction of administrative staff's feedback wind-powered electricity generation unit and wind energy turbine set operation are carried out efficiency optimization and safety guarantee control.Existing wind energy turbine set supervisory control system, for example the VestasOnline of Denmark Vestas company generally is made up of three parts: central authorities' collection controls (station level), control (terrain layer) on the spot, distant place control.Supervisory control system can realize multiple function, as data collection and processing capacity, controlled function, warning function, picture shows, data statistics, printing reports, operating right, multiple curve display etc., satisfy operations staff's various needs, the operations staff can be monitored in wind energy turbine set Central Control Room or a distant place and control, simultaneously the wind-powered electricity generation operator can carry out remote monitoring and management to the ruuning situation of the wind energy turbine set of various places by this system, solve the wind-powered electricity generation operator and be difficult to problem to the wind energy turbine set unified management of various places in the past, and can carry out unified monitoring to the multiple wind-powered electricity generation unit in the wind energy turbine set, realize the unattended target of wind energy turbine set.

At present, China's wind energy turbine set mostly is the large-scale wind power field and concentrates the access electric power system, the total capacity of wind energy turbine set generally has tens megawatts to the hundreds of megawatt, the remote monitoring of domestic wind-powered electricity generation operator subordinate's wind energy turbine set and operation situation can only realize by the supporting separately monitoring software of wind-powered electricity generation unit manufacturer, because the diversity of domestic wind-powered electricity generation unit type, and the control system of each type is all different, all need the corresponding central authorities of cover collection control software and respective remote monitoring software, these softwares are different along with the difference of manufacturer, online automated power regulatory function can't be provided, the power output of wind energy turbine set is regulated and is adopted the artificial mode of setting to regulate mostly, low-response, efficient is low, can't satisfy electrical network to its controlled and adjustable requirement.

Summary of the invention

Technical problem to be solved by this invention is to overcome the problem that existing wind energy turbine set supervisory control system can't realize the on-line automatic power adjustments of wind energy turbine set, and a kind of wind-powered electricity generation active power autocontrol method that is used for the wind energy turbine set supervisory control system is provided.

The technical solution adopted for the present invention to solve the technical problems is as follows: be used for the wind-powered electricity generation active power autocontrol method of wind energy turbine set supervisory control system, have (1) maximum output pattern control program; (2) plan tracing mode control program; (3) self adaptation is regulated the pattern control program.

The described wind-powered electricity generation active power autocontrol method that is used for the wind energy turbine set supervisory control system may further comprise the steps:

A, judgement control model if the maximum output pattern enters step b, if the plan tracing mode enters step c, if self adaptation is regulated pattern, enter steps d,

B, according to the meritorious maximum rate of change λ that sets, press per minute increase λ P MaxMeritorious in real time the exerting oneself of wind energy turbine set is adjusted to min{P Max, P Ava, wherein, P MaxExert oneself P for the maximum of wind energy turbine set is meritorious AvaFor wind energy turbine set can be exerted oneself with maximum is meritorious, as wind energy turbine set installed capacity P InsDuring<30MW, λ P Rmax≤ 6MW/min is as 30MW≤P InsDuring≤150MW, λ P Rmax≤ P Ins/ 5, work as P InsDuring>150MW, λ P Rmax≤ 30MW/min enters step e,

C, according to the meritorious maximum rate of change λ that sets, press per minute increase λ P MaxMeritorious in real time the exerting oneself of wind energy turbine set is adjusted to min{P Plan, P Ava, wherein, P PlanBe the generation schedule that traffic department issues, enter step e,

D, judgement mains frequency information when mains frequency is higher than 50.2Hz, according to the meritorious maximum rate of change λ that sets, are pressed per minute and are reduced λ P MaxMeritorious in real time the exerting oneself of wind energy turbine set is adjusted downward to α P Pre,, press per minute increase λ P when mains frequency is lower than 49Hz MaxTo transfer to min{ β P on real-time meritorious the exerting oneself of wind energy turbine set Pre, P Ava, wherein, α is the downward modulation coefficient, and scope is 0 to 0.8, and β is for raising coefficient, and scope is 1 to 1.5, P PreFor current wind energy turbine set active power output, enter step e,

E, exert oneself by wind-powered electricity generation unit capacity pro rate to every typhoon group of motors the wind energy turbine set that obtains is meritorious in real time, the control of exerting oneself of gaining merit of a wind energy turbine set is finished in the regulation and control of gain merit,

F, in real time meritorious the exerting oneself of the wind energy turbine set after the regulation and control sampled,, withdraw from control, wait for next regulation and control instruction if satisfy the requirement of the meritorious regulation and control instruction of exerting oneself, otherwise, through the 1s time-delay, get back to step a.

Beneficial effect of the present invention is as follows:

(1) the present invention provides wind-powered electricity generation active power autocontrol method for the wind energy turbine set supervisory control system, has more powerful wind power automation controlled function, and can be preferably and China's dispatching of power netwoks control system interface, the service data of wind energy turbine set is sent to power network dispatching system, and receive the dispatch command of electrical network from dispatching patcher, requirement according to grid dispatching center, the demand of area power grid operation and the operating mode of wind energy turbine set are carried out electric power output in real time and operation control, can carry out unified planning to exerting oneself in real time of wind energy turbine set in the wind energy turbine set level, help the grid connected wind power field and insert the mutual cooperation operation of area power grid.

(2) wind-powered electricity generation active power autocontrol method of the present invention can be realized automation, raising operation and the managerial skills of wind energy turbine set.

Description of drawings

Fig. 1 is the automatic controlled function schematic diagram of wind-powered electricity generation active power among the present invention.

Fig. 2 is the flow chart of wind-powered electricity generation active power automatic control program among Fig. 1.

Embodiment

With reference to the accompanying drawings and in conjunction with the embodiments the present invention is described in further detail.But the invention is not restricted to given example.

As shown in Figure 1, the present invention is used for the wind-powered electricity generation active power autocontrol method of wind energy turbine set supervisory control system, has (1) maximum output pattern control program; (2) plan tracing mode control program; (3) self adaptation is regulated the pattern control program.

Embodiment one:

As shown in Figure 2, the present invention is used for the automatic control program of the wind-powered electricity generation active power autocontrol method employing maximum output pattern of wind energy turbine set supervisory control system.

The always meritorious capacity in this grid connected wind power field is 100MW, reactive capability is ± 33.5MVar, being 1.5MW, reactive capability by the meritorious capacity of 67 units constitutes for the double-fed asynchronous wind-powered electricity generation unit of ± 0.5MVar, initially meritorious the exerting oneself of wind energy turbine set is 60MW, initial meritorious the exerting oneself of every typhoon group of motors is 0.89MW, and the maximum meritorious rate of change of per minute is 2% of a specified meritorious capacity.Along with changing meritorious the exerting oneself of the maximum that makes wind energy turbine set, wind speed is increased to 70MW, because the restriction of maximum meritorious rate of change, wind energy turbine set will progressively be adjusted its meritorious exerting oneself, and the meritorious per minute of exerting oneself of wind energy turbine set is adjusted 2MW, the meritorious 0.03MW that exerts oneself of promptly every typhoon group of motors per minute adjustment.Like this, through 5 minutes regulation and control, wind energy turbine set can be exerted oneself gaining merit and be adjusted to 70MW, finished wind speed and changed the meritorious adjustment amount that requires, and at this moment, meritorious the exerting oneself of every typhoon group of motors is 1.045MW.

Embodiment two:

As shown in Figure 2, the present invention is used for the automatic control program of the wind-powered electricity generation active power control method employing plan tracing mode of wind energy turbine set supervisory control system.

The always meritorious capacity in this grid connected wind power field is 100MW, reactive capability is ± 33.5MVar, being 1.5MW, reactive capability by the meritorious capacity of 67 units constitutes for the double-fed asynchronous wind-powered electricity generation unit of ± 0.5MVar, initially meritorious the exerting oneself of wind energy turbine set is 60MW, initial meritorious the exerting oneself of every typhoon group of motors is 0.89MW, and the maximum meritorious rate of change of per minute is 2% of a specified meritorious capacity.Along with changing meritorious the exerting oneself of the maximum that makes wind energy turbine set, wind speed is increased to 80MW, at this moment, control centre's plan of issuing is 70MW, because the restriction of maximum meritorious rate of change, wind energy turbine set will progressively be adjusted its meritorious exerting oneself, the meritorious per minute of exerting oneself of wind energy turbine set is adjusted 2MW, the meritorious 0.03MW that exerts oneself of promptly every typhoon group of motors per minute adjustment.Like this, through 5 minutes regulation and control, wind energy turbine set can be exerted oneself gaining merit and be adjusted to 70MW, finished wind speed and changed the meritorious adjustment amount that requires, and at this moment, meritorious the exerting oneself of every typhoon group of motors is 1.045MW.

Embodiment three:

As shown in Figure 2, the present invention is used for the automatic control program of the wind-powered electricity generation active power control method employing self adaptation adjusting pattern of wind energy turbine set supervisory control system.

The always meritorious capacity in this grid connected wind power field is 100MW, reactive capability is ± 33.5MVar, by the meritorious capacity of 67 units is 1.5MW, reactive capability for the double-fed asynchronous wind-powered electricity generation unit of ± 0.5MVar constitutes, and initially meritorious the exerting oneself of wind energy turbine set is 80MW, and meritorious the exerting oneself of every typhoon group of motors is 1.19MW.In addition, because frequency is system's overall situation amount, be that frequency is identical everywhere in system, so can export the frequency of transformer station's actual measurement as the system frequency amount according to wind energy turbine set, if the meritorious downward modulation of wind energy turbine set coefficient is 0.72 at first, recording system frequency is 50.9Hz, between 50.2Hz~51Hz, frequency occurs unusual, needs meritorious the exerting oneself of wind energy turbine set adjustment that system is supported; Secondly, according to the meritorious rate of change of the maximum of setting, the maximum meritorious 20MW that is changed to of per minute is changed to 22.4MW owing to try to achieve meritorious the exerting oneself of wind energy turbine set per minute, greater than 20MW, so be taken as 20MW; This moment, meritorious the exerting oneself of wind energy turbine set was reduced to 60MW, the meritorious adjustment amount of exerting oneself of 20MW is every typhoon group of motors reduction 0.3MW by wind-powered electricity generation unit capacity pro rate after each typhoon group of motors, meritorious the exerting oneself of adjusting the every typhoon group of motors in back is 0.89MW, because the frequency modulation unit in the main electrical network that the wind-powered electricity generation place connects also participates in frequency modulation, after the regulation and control of once gaining merit, system frequency returns to 50.5Hz.After the 1s time-delay, the actual measurement system frequency of wind energy turbine set outlet transformer station is 50.4Hz, and is still unusual, repeats above-mentioned steps and carries out the meritorious adjusting of exerting oneself of wind energy turbine set.At this moment, meritorious the exerting oneself of trying to achieve the wind energy turbine set per minute changes 16.8MW, this moment, meritorious the exerting oneself of wind energy turbine set reduced to 43.2MW, 16.8MW the meritorious adjustment amount of exerting oneself is reduced 0.25MW by wind-powered electricity generation unit capacity pro rate every typhoon group of motors after each typhoon group of motors, meritorious the exerting oneself of adjusting the every typhoon group of motors in back is 0.64MW, cooperate the frequency modulation of main electrical network again, system frequency returns to 49.8Hz, in normal range (NR).Adopt the wind energy turbine set EMS of invention, can fully take into account the specific demand of system's operation, play an active part in system's frequency modulation.

Claims (2)

1. be used for the wind-powered electricity generation active power autocontrol method of wind energy turbine set supervisory control system, it is characterized in that: have (1) maximum output pattern control program, (2) plan tracing mode control program, (3) self adaptation adjusting pattern control program.
2. the wind-powered electricity generation active power autocontrol method that is used for the wind energy turbine set supervisory control system according to claim 1 is characterized in that, may further comprise the steps:
A, judgement control model if the maximum output pattern enters step b, if the plan tracing mode enters step c, if self adaptation is regulated pattern, enter steps d,
B, according to the meritorious maximum rate of change λ that sets, press per minute increase λ P MaxMeritorious in real time the exerting oneself of wind energy turbine set is adjusted to min{P Max, P Ava, wherein, P MaxExert oneself P for the maximum of wind energy turbine set is meritorious AvaFor wind energy turbine set can be exerted oneself with maximum is meritorious, as wind energy turbine set installed capacity P InsDuring<30MW, λ P Rmax≤ 6MW/min is as 30MW≤P InsDuring≤150MW, λ P Rmax≤ P Ins/ 5, work as P InsDuring>150MW, λ P Rmax≤ 30MW/min enters step e,
C, according to the meritorious maximum rate of change λ that sets, press per minute increase λ P MaxMeritorious in real time the exerting oneself of wind energy turbine set is adjusted to min{P Plan, P Ava, wherein, P PlanBe the generation schedule that traffic department issues, enter step e,
D, judgement mains frequency information when mains frequency is higher than 50.2Hz, according to the meritorious maximum rate of change λ that sets, are pressed per minute and are reduced λ P MaxMeritorious in real time the exerting oneself of wind energy turbine set is adjusted downward to α P Pre,, press per minute increase λ P when mains frequency is lower than 49Hz MaxTo transfer to min{ β P on real-time meritorious the exerting oneself of wind energy turbine set Pre, P Ava, wherein, α is the downward modulation coefficient, and scope is 0 to 0.8, and β is for raising coefficient, and scope is 1 to 1.5, P PreFor current wind energy turbine set active power output, enter step e,
E, exert oneself by wind-powered electricity generation unit capacity pro rate to every typhoon group of motors the wind energy turbine set that obtains is meritorious in real time, the control of exerting oneself of gaining merit of a wind energy turbine set is finished in the regulation and control of gain merit,
F, in real time meritorious the exerting oneself of the wind energy turbine set after the regulation and control sampled,, withdraw from control, wait for next regulation and control instruction if satisfy the requirement of the meritorious regulation and control instruction of exerting oneself, otherwise, through the 1s time-delay, get back to step a.
CN2010102690357A 2010-09-01 2010-09-01 Automatic control method of wind electric active power for wind farm monitoring system CN101917023A (en)

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Publication number Priority date Publication date Assignee Title
CN102163849A (en) * 2011-03-11 2011-08-24 中国电力科学研究院 Wind power output adaptive smoothing method based on energy storage battery charge state feedback
CN102170129A (en) * 2011-04-22 2011-08-31 武汉大学 Low-carbon dispatching method and device for electric power system based on large-scale wind power grid connection
CN103368205A (en) * 2013-07-09 2013-10-23 国家电网公司 Method for determining voltage feasible region based on total wind power on-grid active power flow
CN109416019A (en) * 2016-07-06 2019-03-01 维斯塔斯风力系统集团公司 Wind power plant with multiple wind turbine generators and power plant controller
CN110529336A (en) * 2019-09-06 2019-12-03 国电联合动力技术有限公司 A kind of method and system that wind power generating set active power is quickly adjusted

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CN101286643A (en) * 2008-06-12 2008-10-15 国网南京自动化研究院 Wind power field energy management system having power grid access control function
CN101795007A (en) * 2010-03-18 2010-08-04 清华大学 Stator power control method of wind-power double-feed motor based on synchronization model

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163849A (en) * 2011-03-11 2011-08-24 中国电力科学研究院 Wind power output adaptive smoothing method based on energy storage battery charge state feedback
CN102163849B (en) * 2011-03-11 2014-07-23 中国电力科学研究院 Wind power output adaptive smoothing method based on energy storage battery charge state feedback
CN102170129A (en) * 2011-04-22 2011-08-31 武汉大学 Low-carbon dispatching method and device for electric power system based on large-scale wind power grid connection
CN103368205A (en) * 2013-07-09 2013-10-23 国家电网公司 Method for determining voltage feasible region based on total wind power on-grid active power flow
CN109416019A (en) * 2016-07-06 2019-03-01 维斯塔斯风力系统集团公司 Wind power plant with multiple wind turbine generators and power plant controller
CN109416019B (en) * 2016-07-06 2020-05-05 维斯塔斯风力系统集团公司 Wind power plant with multiple wind turbine generators and a power plant controller
CN110529336A (en) * 2019-09-06 2019-12-03 国电联合动力技术有限公司 A kind of method and system that wind power generating set active power is quickly adjusted

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Application publication date: 20101215