基于工作点在线计算的双馈机组网侧变流器高电压穿越控制High Voltage Ride Through Control of Grid-side Converter in Doubly-fed Wind Turbine Based on Online Calculation of Operating Points
王耀函,张扬帆,宋鹏,刘辉,吴林林,张瑞芳
摘要(Abstract):
为保证电网运行的安全与稳定性,避免电网电压骤升时风电机组从电网中解列,需提升风电机组高电压穿越的能力。为快速抑制高电压故障时网侧过调制引起的电压、电流冲击,首先确定电网电压骤升时网侧变流器安全运行区域。在此基础上,在线计算双馈风电机组在不同电网电压条件下的高电压穿越稳态最佳工作点,以保证网侧过调制时间最短。同时,设计了参数补偿模块以消除稳态工作点误差。仿真结果表明,该控制策略保证风电机组在电网电压故障骤升期间不脱网运行,能够根据电网要求提供一定的无功支撑,且提升了双馈风电机组在故障穿越期间的响应速度及稳态控制效果。
关键词(KeyWords): 双馈风电机组;高电压穿越;网侧变流器控制;最佳工作点
基金项目(Foundation):
作者(Author): 王耀函,张扬帆,宋鹏,刘辉,吴林林,张瑞芳
DOI: 10.19635/j.cnki.csu-epsa.000948
参考文献(References):
- [1]Teodorescu R,Liserre M,Rodriguez P.Grid Converters for Photovoltaic and Wind Power Systems[M].New York:IEEE Press,2011.
- [2]姜惠兰,王绍辉,李希钰,等(Jiang Huilan,Wang Shaohui,Li Xiyu,et al).双馈异步风力发电机低高电压连锁故障暂态特性精确分析及穿越方案(Accurate analysis of transient characteristics and ride-through scheme under DFIG low and high voltage cascading fault)[J].电网技术(Power System Technology),2021,45(10):4076-4083.
- [3]刘沛霖(Liu Peilin).风电机组高电压穿越策略研究(High Voltage Ride Through Strategy for Wind Turbines)[D].济南:山东大学(Jinan:Shandong University),2021.
- [4]Parag K,Bhim S.‘SRF theory revisited’to control selfsupported dynamic voltage restorer (DVR) for unbalanced and nonlinear loads[J].IEEE Trans on Industry Applications,2013,49(5):2330-2340.
- [5]黄永红,施慧,徐俊俊,等(Huang Yonghong,Shi Hui,Xu Junjun,et al).改进dq变换的动态电压恢复器检测新方法(Improved dq transform algorithm for dynamic voltage restorer detection)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2016,28(10):117-122.
- [6]陈国栋,朱淼,蔡旭,等(Chen Guodong,Zhu Miao,Cai Xu,et al).一种软件锁相环和电压跌落检测新算法(Anew algorithm for software phase locked-loop and voltage sag detection)[J].中国电机工程学报(Proceedings of the CSEE),2014,34(25):4385-4394.
- [7]Xu Hailiang,Zhang Wei,Nian Heng,et al.Improved vector control of DFIG based wind turbine during grid dips and swells[C]//International Conference on Electrical Machines and Systems.Incheon,Korea,2010:511-515.
- [8]兰传盛,潘庭龙(Lan Chuansheng,Pan Tinglong).双馈风电机组HVRT暂态电流计算及其控制策略研究(Study on HVRT transient current calculation and control strategy of doubly-fed induction generator)[J].可再生能源(Renewable Energy Resources),2021,39(6):818-824.
- [9]王艺霏(Wang Yifei).双馈异步风力发电系统高电压穿越控制策略研究(Research on High Voltage Ride Through Control Strategy of DFIG Wind Power System)[D].济南:山东大学(Jinan:Shandong University),2021.
- [10]曹仁贤,张兴,屠运武,等.一种网侧变流器控制方法和系统:CN103311957A[P].2013-06-28.
- [11]邹乐,吴学光,寇龙泽,等(Zou Le,Wu Xueguang,Kou Longze,et al).电网电压对称骤升下双馈风力发电系统的改进控制策略研究(Improved control strategy for a double-fed generation system under grid voltage symmetric swell)[J].电网技术(Power System Technology),2020,44(4):1360-1367.
- [12]唐晓骏,蔡继朝,马世英,等(Tang Xiaojun,Cai Jizhao,Ma Shiying,et al).双馈风电并网对电力系统频率响应的影响(Effects of DFIG wind power grid-connection on frequency response of power system)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2020,32(10):37-43.