斩控式交流调压无功补偿电路的设计  

Circuit Design of Reactive Power Compensation Based on AC Chopping Control Voltage Regulation

作　　者：侯树文[1] 曾浩[1] 雷校省 钱俊良[1] 赵臣鹏 

机构地区：[1]华北水利水电大学,河南郑州450045

出　　处：《华北水利水电学院学报》2013年第5期87-89,共3页North China Institute of Water Conservancy and Hydroelectric Power

基　　金：水利部公益基金项目(200801011)

摘　　要：随着电力系统对电能利用率的要求越来越高,无功补偿在电力系统中的作用显得越来越重要.但是现有的无功补偿电路中,开关元件开关过程中电压、电流变化很快而且均不为零,导致了开关损耗和开关噪声.为解决此问题,利用PWM控制技术和静止同步补偿器技术进行了斩控式交流调压的无功补偿电路设计,获得了一种新型低开关损耗的无功补偿电路;利用MATLAB/Simulink建立了仿真模型.仿真结果表明,斩控式交流调压无功补偿电路大大减小了无功补偿过程中的开关损耗和开关噪声,提高了无功补偿效率.With the increasingly high demands for energy efficiency, reactive power compensation becomes more and more important role in the electric power system. But in the existing wattless compensation circuit,in the process of switching element, the voltage and current changes quickly and are not zero, which leads to the switching loss and noise. In order to obtain a new low switching loss of reactive power compensation circuit, a circuit design of wattless compensation based on AC chopping control voltage regulation is proposed by the combination of PWM control technology and the technology of static synchronous compensator. Further, a simulation model is built by using MATLAB/Simulink. The simulation results show that wattless compensation circuit based on AC chopping control voltage regulation greatly reduces the switching loss and noise in the process of wattless compensation, and improves the efficiency of wattless compensation.

关 键 词：斩控式 交流调压 无功补偿 MATLAB SIMULINK仿真 

分 类 号：TM727.2[电气工程—电力系统及自动化]