电工技术学报  2022, Vol. 37 Issue (11): 2825-2836    DOI: 10.19595/j.cnki.1000-6753.tces.210537
电力系统与综合能源 |
基于线性自抗扰控制的静止无功补偿器抑制弱交流风电系统次同步振荡策略
颜湘武, 常文斐, 崔森, 孙颖, 贾焦心
河北省分布式储能与微网重点实验室(华北电力大学) 保定 071003
Sub-Synchronous Oscillation Suppression Strategy of Weak AC Wind Power System with Static Var Compensator Based on Linear Active Disturbance Rejection Control
Yan Xiangwu, Chang Wenfei, Cui Sen, Sun Ying, Jia Jiaoxin
Hebei Provincial Key Laboratory of Distributed Energy Storage and Microgrid North China Electric Power University Baoding 071003 China
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摘要 2019年8月9日的英国大停电事故造成该国部分重要城市出现停电现象,损失负荷约3.2%,影响约100万电力用户。结合英国国家电网公司提供的事故调查报告,该文详细地分析了事故中霍恩风电机组大规模脱网事件的发展过程,对霍恩风电场发生次同步振荡的具体原因进行了分析,并采用Matlab仿真软件构建霍恩风电系统模型进行事故复现。为了解决霍恩风电场发生的次同步振荡问题,利用线性自抗扰控制抗干扰能力强、对不同工况适应性强的优点,提出使用线性自抗扰控制器替换静止无功补偿装置(SVC)的电压PI控制模块,对霍恩风电系统中的总扰动进行估计并补偿,克服系统响应速度与超调之间的矛盾,提高系统的稳定性与鲁棒性,有效地抑制了霍恩风电系统次同步振荡现象。仿真结果验证了所提控制策略应用于静止无功补偿器后抑制弱交流风电系统次同步振荡的有效性,可为研究我国海上风电并网类似问题提供参考。
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颜湘武
常文斐
崔森
孙颖
贾焦心
关键词 霍恩风电场次同步振荡线性自抗扰控制静止无功补偿器    
Abstract:On August 9, 2019, A large-scale blackout in the United Kingdom caused blackouts in several important cities, losing about 3.2 percent of the load and affecting about 1 million power users. On the basis of the accident investigation report provided by the UK National Grid, the development process of large-scale off-grid of Hornsea wind farm in the accident was analyzed in detail, and the specific reasons for the sub-synchronous oscillation of Hornsea wind farm were analyzed. The Hornsea wind power system model was established by Matlab simulation software to reproduce the accident. To solve the problem of sub-synchronous oscillation of Hornsea wind farm, using the advantages of linear active disturbance rejection control with strong anti-disturbance ability and strong adaptability to different working conditions, a linear active disturbance rejection controller was proposed to replace the voltage PI control module of the static var compensator (SVC), which would estimate and compensate the total disturbance in the Hornsea wind power system, overcome the contradiction between the system response speed and overshoot, improve the stability and robustness of system, and effectively suppress the sub-synchronous oscillation of Hornsea wind power system. The simulation results verify the effectiveness of the proposed control strategy in suppressing the sub-synchronous oscillation of weak AC wind power system after being applied to static var compensator, which serves as a reference for studying similar problems of offshore wind power in China.
Key wordsHornsea wind farm    sub-synchronous oscillations(SSO)    linear active disturbance rejection control(LADRC)    static var compensator(SVC)   
收稿日期: 2021-04-19     
PACS: TM614  
基金资助:北京市自然科学基金(3212037)和国家电网公司总部科技项目(SGHEDK00DYJS1900061)资助
通讯作者: 常文斐 女,1997年生,硕士研究生,研究方向为风力发电机组控制技术。E-mail:chang_zz@yeah.net   
作者简介: 颜湘武 男,1965年生,教授,博士生导师,研究方向为风力发电机系统及其控制。E-mail:xiangwuy@263.net
引用本文:   
颜湘武, 常文斐, 崔森, 孙颖, 贾焦心. 基于线性自抗扰控制的静止无功补偿器抑制弱交流风电系统次同步振荡策略[J]. 电工技术学报, 2022, 37(11): 2825-2836. Yan Xiangwu, Chang Wenfei, Cui Sen, Sun Ying, Jia Jiaoxin. Sub-Synchronous Oscillation Suppression Strategy of Weak AC Wind Power System with Static Var Compensator Based on Linear Active Disturbance Rejection Control. Transactions of China Electrotechnical Society, 2022, 37(11): 2825-2836.
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https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.210537          https://dgjsxb.ces-transaction.com/CN/Y2022/V37/I11/2825