扩大单元接线机组控制策略分析研究  

The research of expanded unit connection AVC control strategy analysis

作　　者：伍阳阳 刘友宽 李长更 李黎 洪思源 李晓龙 Wu Yangyang;Liu Youkuan;Li Changgeng;Li Li;Hong Siyuan;Li Xiaolong(Yunnan electric power test research institute（group）co.,LTD.,Kunming 65020)

机构地区：[1]云南电力试验研究院(集团)有限公司,昆明650200

出　　处：《云南电力技术》2018年第5期104-108,共5页Yunnan Electric Power

摘　　要：针对扩大单元接线机组在AVC试验时存在无功争抢的现象,本文从AVC控制原理、发电机改变机端电压角度出发,分析了调差系数对无功负荷分配、电压灵敏度的影响。在Simulink环境下搭建了2*65 MW扩大单元接线机组,研究调差系数对AVC控制效果的影响。结果表明,增大调差系数可以减缓机组之间的无功争抢,使母线电压调节到指令值,满足南网AVC技术规范要求。In expanded unit connection units in the phenomenon of reactive power competition for AVC test, this article from the AVC control principle, the voltage of the generator to change machine Angle, analyzes the regulation coefcient of reactive load distribution, the infuence of voltage sensitivity. Setting up in Simulink environment 2＊65 MW expanded unit connection unit, studies the efect of regulation coefcient of AVC control. The results show that increasing regulation coefcient can slow the reactive power competition of unit between, make the bus voltage regulation to instruction value, satisfy the requirement of the south net AVC technical specifcation.

关 键 词：扩大单元接线 AVC 无功争抢 调差系数 

分 类 号：TM74[电气工程—电力系统及自动化]