基于瞬时无功理论的SVC低通滤波器设计与应用  

Design and Application of Low-Pass Filter Based on Instantaneous Reactive Theory

作　　者：程远楚[1,2] 徐德鸿[3] 刘燕[4] 卢志良[4] 

机构地区：[1]武汉大学动力与机械学院 [2]浙江大学电气工程学院杭州310027 [3]浙江大学电气工程学院 [4]顺特电气有限公司

出　　处：《电工技术学报》2008年第9期138-143,共6页Transactions of China Electrotechnical Society

基　　金：广东省重点技术资助项目(JGZB20050310)

摘　　要：给出了基于瞬时无功理论的静止无功补偿装置(SVC)的补偿控制算法,讨论了在不平衡负载电流时低通滤波器的设计。采用Butterworth低通滤波器和平均值算法设计的SVC低通滤波器,可有效地滤除高频和工频的整数次谐波分量。某一具体工程实际的仿真结果表明,本文所述方法的检测结果既保证了较好的检测精度,又具有较快的动态响应性能。该方法已在某一三相变单相的电源系统中得到了应用。The SVC reactive compensation algorithm based on the instantaneous reactive theory is presented, and the design of the low-pass filter under the condition of imbalance load current is discussed in this paper. A low-pass filter for SVC is given by used of Butterworth low-pass filter and average value algorithm, by which the high order and low order harmonic waves are filtered effectively. The simulating results of a practical engineering show that the new filter has higher detection precision and faster dynamic performance. The method mentioned in this paper has been applied to a power source system for transferring three-phase into single-phase.

关 键 词：瞬时无功理论 SVC 低通滤波器 BUTTERWORTH滤波器 

分 类 号：TM761[电气工程—电力系统及自动化]