摘要
随着风电渗透率的提高,电力系统等效惯量减小、频率稳定性下降。为提高电力系统稳定性,国家电网连接指南要求大规模风力发电参与频率调节,同时提供类似于同步发电机的惯性响应。为了解决风电机组一次调频控制在一定程度上加剧传动系统疲劳的问题,提出了一种考虑传动系统疲劳的风电机组一次调频控制策略。该策略通过模糊控制调整传动系统阻尼控制器的参数,从而在保证风电机组参与一次调频的同时减弱一次调频导致的传动系统疲劳问题。最后通过搭建仿真系统来验证所提出的控制策略,结果表明控制策略有效。
With the increase of wind power permeability,the equivalent inertia of power system decreases and the frequency stability decreases.In order to improve power system stability,the State Grid Connection Guidelines require large-scale wind power generation to participate in frequency regulation,and meanwhile to provides an inertial response similar to that of a synchronous generator.In order to solve the problem that the primary frequency modulation control of wind turbines aggravates the fatigue of transmission system to a certain extent,a primary frequency modulation control strategy of wind turbines considering the fatigue of transmission system was proposed.This strategy adjusts the parameters of the damping controller of transmission system through fuzzy control,so as to reduce the fatigue of transmission system caused by primary frequency modulation while guaranteeing the participation of wind turbines in primary frequency modulation.Finally,a simulation system was built to verify the proposed control strategy,and the results show that the control strategy is effective.
作者
何秉宸
王晓东
HE Bingchen;WANG Xiaodong(School of Electrical Engineering,Shenyang University of Technology, Shenyang 110870,China)
出处
《电器与能效管理技术》
2019年第7期17-23,58,共8页
Electrical & Energy Management Technology
基金
国家自然科学基金资助项目(51677121)
关键词
双馈风电机组
一次调频控制
传动系统
阻尼控制器
doubly-fed wind turbine
primary frequency modulation control
transmission system
damping controller
