摘要
随着风电并网容量的逐渐增加,风电对系统暂态稳定性的影响也不容忽视,风电场采用虚拟惯量控制可有效改善电力系统暂态稳定性。为研究风电虚拟惯量控制对电力系统暂态稳定的影响机制,采用扩展等面积法则分析虚拟惯量控制对等值功率差额的影响。通过分析可知,加入虚拟惯量控制可改变余下群机组的惯性,从而改变等值系统的功率差额,减少临界机组的功角波动,提高暂态稳定性。
With the gradual increase of wind power grid-connected capacity,the influence of wind power on the transient stability of the system can not be ignored.Virtual inertia control can effectively improve the transient stability of power system.In order to study the influence mechanism of wind power virtual inertia control on power system transient stability,the influence of virtual inertia control on equivalent power difference is analyzed by using extended equal area rule.Through the analysis,it can be seen that the inertia of the remaining group units can be changed by adding virtual inertia control,thus the power difference of the equivalent system can be changed,thus the power angle fluctuation of the critical unit can be reduced and the transient stability can be improved.
作者
田军
于明鑫
张师
刘馨语
柳禾丰
TIAN Jun;YU Mingxin;ZHANG Shi;LIU Xinyu;LIU Hefeng(Institute of Electrical Engineering,Jilin Technology College of Electronic Information,Jilin 132021,Jilin Province,China;Guodian Material Northeast Distribution Co.,Ltd.,Shenyang 110000,Liaoning Province,China;School of Electrical Engineering,Northeast Electrical Power University,Jilin 132012,Jilin Province,China;Changchun New District Management Committee,Changchun 130000,Jilin Province,China;Jilin Provincial Institute of Economic and Technological Research,Changchun 130000,Jilin Province,China)
出处
《分布式能源》
2019年第6期45-49,共5页
Distributed Energy
关键词
风电机组
扩展等面积法则
临界机组
余下机组
虚拟惯量
wind turbines
extended equal area criterion
critical units
remaining units
virtual inertia
作者简介
田军(1982—),男,硕士,讲师,研究方向为电力系统潮流分析,15338233@qq.com;于明鑫(1988—),男,学士,助理工程师,研究方向为电力系统暂态稳定定量评估,105002112@qq.com;张师(1989—),男,硕士,研究方向为电力系统动态安全分析,zs472254835@126.com;刘馨语(1989—),男,硕士,助理工程师,研究方向为电力系统稳定性分析,634476119@qq.com;柳禾丰(1989—),男,硕士,工程师,研究方向为风电并网技术,steven110531@163.com。
