滞环比较PWM跟踪控制分析  

Analysis of Hysteresis Comparing PWM Tracking Control

作　　者：雷元超[1] 陈春根[1] 陈国呈[1] 

机构地区：[1]上海大学机电工程与自动化学院,上海200072

出　　处：《水电能源科学》2004年第1期83-85,共3页Water Resources and Power

摘　　要：介绍了可再生能源用逆变器的基本要求和滞环比较方式PWM跟踪控制用于可再生能源利用中的两种控制方式。从滞环控制方式的特点入手,详细分析了单相滞环比较控制方式的原理并计算得出了实际的器件开关频率计算式。仿真结果表明,假设合理,分析确切,控制方式简单,动态性能好、谐波小,适于并网及独立运行。Characteristics of inverter in renewable energy utility and how to use hysteresis comparison PWM tracking control are introduced in this paper. Starting from the characteristics of hysreresis comparison control, the principle of hysreresis comparison control and the formula of actual switch frequency are gotten. The simulation shows the presupposition rationality and the correctness of the analysis, it also shows the simplicity of the method and circuit with quick responsibility, low harmonics and fitness for both isolated and grid-connected application.

关 键 词：可再生能源 PWM跟踪 滞环比较控制 并网逆变器 

分 类 号：TM910.1[电气工程—电力电子与电力传动]