新型不对称负荷补偿装置控制研究  

Research on new type of asymmetric load compensator control strategy

作　　者：蔡阳[1] 韦钢[1] 雷振[1] 

机构地区：[1]上海电力学院,上海200090

出　　处：《电力系统保护与控制》2010年第24期110-114,130,共6页Power System Protection and Control

基　　金：上海市重点学科项目资助(J51301)

摘　　要：针对电力系统不对称负荷日益多样性的状况,将瞬时无功功率理论应用于提高功率因数和补偿三相不平衡的静止无功功率补偿装置(Static Var Compensator)控制之中,提出了一种基于新算法的SVC补偿控制方法。该算法以对称分量法为理论支撑,通过对负荷电流进行基波有功分量和无功分量的解耦,利用分离出的无功电流计算理想补偿导纳,简化了传统的不对称补偿算法。采用Matlab/Simulink对所提出的控制算法进行仿真建模,建立对晶闸管相控电抗器(TCR)并联电容型SVC的控制,仿真结果证明了所提方法的正确性和可行性。This paper proposes a SVC compensation algorithm based on the new control methods aiming at the growing diversity of asymmetric load conditions, through applying the theory of instantaneous reactive power to static reactive power compensation equipment（Static Var Compensator）control that is used to increase power factor and compensate unbalanced three-phase. Based on symmetrical component method,through the load current decoupling into active component and reactive component,and by the use of the isolated reactive current to calculate the ideal compensation susceptance,the proposed algorithm simplifies the traditional asymmetric compensation algorithm.At last, the proposed control algorithm is simulated and modelled using Matlab/simulink, and the control for SVC is established. The correctness and feasibility of the proposed scheme are verified by simulating results.

关 键 词：不对称负荷 瞬时无功 功率因数 SVC 补偿算法 无功电流 

分 类 号：TM761[电气工程—电力系统及自动化]