风电场虚拟惯量控制对电力系统暂态稳定性的影响分析
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。
Abstract: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.
标题:风电场虚拟惯量控制对电力系统暂态稳定性的影响分析
title:Analysis of the Influence of Virtual Inertia Control of Wind Farm on Transient Stability of Power System
作者:田军,于明鑫,张师,刘馨语,柳禾丰
authors:TIAN Jun ,YU Mingxin ,ZHANG Shi ,LIU Xinyu ,LIU Hefeng
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,
keywords:wind turbines,extended equal area criterion,critical units,remaining units,virtual inertia,
发表日期:2019-12-30
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