考虑权重系数的风电机组动态频率控制策略  

Dynamic Frequency Control Strategy for Wind Turbine Considering Weight Coefficient

作　　者：李世春[1] 申骜 薛臻瑶 柴俊杰 邓蕊 田冰杰 LI Shichun;SHEN Ao;XUE Zhenyao;CHAI Junjie;DENG Rui;TIAN Bingjie(College of Electrical Engineering and New Energy,China Three Gorges University,Yichang 443002,China;Yellow River Water Conservancy and Hydropower Development Group,Jiyuan 459017,China)

机构地区：[1]三峡大学电气与新能源学院,宜昌443002 [2]黄河水利水电开发集团有限公司,济源459017

出　　处：《电力系统及其自动化学报》2023年第6期22-29,共8页Proceedings of the CSU-EPSA

基　　金：国家自然科学基金资助项目(51907104)。

摘　　要：针对风电并网引起系统频率稳定性能下降的问题,设计一种考虑权重系数的风电机组动态频率控制策略。首先,提出在虚拟惯量控制中引入权重系数的控制方法,以充分发挥惯性控制和下垂控制在频率响应各阶段的控制优势,提升频率控制效果;其次,为优化风电机组运行状态,提出了频率支撑结束后的闭锁控制方法,并针对不同风电渗透场景制定了相关参数调整方案;最后,通过Matlab/Simulink仿真验证了所提策略的有效性和适用性。Aimed at the problem of system frequency stability degradation caused by wind power integration,a dynamic frequency control strategy for wind turbine is designed with the consideration of weight coefficient.First,the control method of introducing weight coefficient to the virtual inertia control is proposed to give full play to the control advantag⁃es of inertia control and droop control at each stage of frequency response and improve the frequency control effect.Sec⁃ond,to optimize the wind turbine’s operation state,a blocking control method is proposed at the end of frequency sup⁃port,and an adjustment scheme for relevant parameters is formulated for different wind power penetration scenarios.Fi⁃nally,the effectiveness and applicability of the proposed strategy are verified by Matlab/Simulink simulations.

关 键 词：风电机组频率控制 权重系数 闭锁控制 风电渗透率 

分 类 号：TM721[电气工程—电力系统及自动化]