摘要
针对风电机组参与系统频率调整与传统同步机电源相互配合的问题,通过合理设置双馈风电机组锁相环控制参数使其具有与传统同步机电源相似的惯量响应能力,进而分析风电机组惯量响应与同步机一次调频之间的相互影响,在此基础上提出风电机组主导的风-火协同调频控制策略。本策略的优点在于能减弱风电机组惯量响应过程中对于同步发电机组一次调频出力的抑制作用,加快同步发电机调频响应速率,进一步优化系统频率。最后在EMTDC/PSCAD中搭建时域仿真系统,验证了所提出理论分析的正确性与控制策略的有效性。
Aiming at the problem that wind turbine participates in the system frequency adjustment and cooperates with the traditional synchronous generators,the paper reasonably sets the control parameters of phase-locked loop for doubly-fed wind turbine,makes it has the inertia response ability similar to the traditional synchronous generators,and analyze the interaction between the inertia response of the wind turbine and the primary frequency regulation of the synchronous generator.On this basis,a wind-thermal power coordinated frequency regulation strategy dominated by the wind turbine is proposed,and frequency regulation compensation signal is sent form wind farm to the synchronous generator with the strategy.The advantage of the strategy is that it can weaken the inhibition of the primary frequency regulation output of the synchronous generator in the inertia response process of the wind turbine,accelerate the frequency regulation response rate of the synchronous generator,and further optimize the system frequency.Finally,a time-domain simulation system is built in EMTDC/PSCAD to verify the correctness of the proposed theory and the effectiveness of the control strategy.
作者
崔幼石
严干贵
刘櫂芮
贾希浩
王振洋
翟文超
CUI Youshi;YAN Gangui;LIU Zhaorui;JIA Xihao;WANG Zhenyang;ZHAI Wenchao(Key Laboratory of Modern Power System Simulation Control and New Green Power Technology,Ministry of Education,Northeast Electric Power University,Jilin 132000,China)
出处
《智慧电力》
北大核心
2023年第1期38-45,77,共9页
Smart Power
基金
国家自然科学基金资助项目(U1866601)
国网辽宁省有限公司科技项目(5400-20218154A-0-0-00)。
关键词
双馈风电机组
转子惯性控制
锁相环
一次调频
协同控制
风电调频
doubly-fed wind turbine
rotor inertia control
phase-locked loop
primary frequency regulation
coordinated control
wind power frequency regulation
