动态电压恢复器的补偿特性与控制目标  

COMPENSATION RANGE AND CONTROL OBJECT OF DYNAMIC VOLTAGE RESTORER

作　　者：谢旭[1] 胡明亮[1] 梁旭[1] 姜齐荣[1] 

机构地区：[1]清华大学电机系,北京市100084

出　　处：《电力系统自动化》2002年第8期41-44,共4页Automation of Electric Power Systems

摘　　要：DVR(动态电压恢复器 )的作用是抑制电压波动对用户侧敏感负荷的影响。文中运用相量法分析了负荷功率因数与 DVR补偿范围及其容量的关系 ,即当 DVR装置只输出无功功率时 ,其补偿范围受负荷的功率因数的限制 ,在负荷功率因数较大时 ,甚至无法满足要求。通过分析 ,给出了确定 DVR合理容量的定量描述。并根据装置的状态方程解决了 DVR不同控制目标的求解问题 。DVR dynamic voltage restorer is used to inhibit influence of voltage fluctuation on users'sensitive loads.This paper analyzes how the power ratio of load has relation to the range of voltage compensation and the capacity of DVR by means of vectors.It is shown when DVR only offers reactive power to the system,the range of voltage compensation is lim ited and if the power ratio of load is too high,maybe the com pensation efficacy of DVR will not be satisfactory.Through analysis,the m easurable description of the capacity of DVR is presented,and furthermore,according to different control objects,the solutions and schemes of voltage output are presented by analyzing their state equations.

关 键 词：动态电压恢复器 电能质量 补偿特性 电力系统 电压 无功功率 控制目标 

分 类 号：TM761[电气工程—电力系统及自动化]