| 引用本文: | 冀肖彤,江克证,姚雅涵,柳丹,姚伟,曹侃,文劲宇.计及风机运行状态差异的风电场频率协同支撑控制[J].电力自动化设备,2024,44(3):98-104 |
| JI Xiaotong,JIANG Kezheng,YAO Yahan,LIU Dan,YAO Wei,CAO Kan,WEN Jinyu.Frequency collaborative support control of wind farm considering operation state difference of wind turbines[J].Electric Power Automation Equipment,2024,44(3):98-104 |
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| 摘要: |
| 尾流效应会导致同一风电场内风机的调频能力各不相同，为了充分利用风电场内每台风机的调频能力以提升系统的频率表现，提出了一种计及风机运行状态差异的风电场频率协同支撑控制策略。所提控制策略分为2个阶段：在频率支撑阶段，采用无领导一致性算法使风机与邻近风机实时交换状态信息，实现合理的功率分配，并在此基础上自适应调整调频系数以保障风电场的安全运行；在风机由频率支撑阶段切换至转速恢复阶段，采用渐进转速恢复控制实现两控制间的平滑过渡，缓解二次频率跌落问题。以含风电场的4机2区系统和3端4区系统为算例进行仿真分析，仿真结果验证了所提控制策略向上调频和向下调频的控制效果相比于集中式控制的优越性。 |
| 关键词: 风电场 频率支撑 分布式控制 一致性算法 二次频率跌落 运行状态 |
| DOI：10.16081/j.epae.202308011 |
| 分类号:TM614;TM761 |
| 基金项目:国家自然科学基金优秀青年基金资助项目(52022035)；国网湖北省电力有限公司科技研究项目(52153222001J) |
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| Frequency collaborative support control of wind farm considering operation state difference of wind turbines |
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JI Xiaotong1,2, JIANG Kezheng3, YAO Yahan1, LIU Dan3, YAO Wei1, CAO Kan3, WEN Jinyu1
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1.State Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronics Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;2.State Grid Hubei Electric Power Co.,Ltd.,Wuhan 430077, China;3.Electric Power Research Institute of State Grid Hubei Electric Power Co.,Ltd.,Wuhan 430077, China
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| Abstract: |
| The wake effect will lead to different frequency regulation capabilities of wind turbines in the same wind farm. In order to make full use of the frequency regulation capability of each wind turbine in a wind farm to improve the system frequency performance, a frequency collaborative support control of wind farm considering operation state difference of wind turbines is proposed. The proposed control strategy is divided into two stages. In the frequency support stage, the leaderless consistency algorithm is used to exchange the state information between the wind turbine and its neighboring wind turbine in real time to achieve reasonable power distribution, and on this basis, the frequency regulation coefficient is adjusted adaptively to ensure the safe operation of the wind farm. When the wind turbine switches from the frequency support stage to the rotor speed restoration stage, the progressive rotor speed restoration control is adopted to realize the smooth transition between the two controls and alleviate the second frequency drop problem. The simulation analysis of the four-machine two-area system and the three-terminal four-area system with wind farms is carried out. The simulative results verify that the up and downward frequency regulation control effect of the proposed control strategy is superior to that of the centralized control. |
| Key words: wind farms frequency support distributed control consensus algorithm second frequency drop operation state |
