反激式微型逆变器建模方法  

Modeling Method of Flyback Micro-inverter

作　　者：冯夏云 吴春华[1,2,3] 汪飞[1,2] 

机构地区：[1]上海大学机电工程与自动化学院,上海市200072 [2]上海市电站自动化技术重点实验室,上海市200072 [3]上海岩心电子科技有限公司,上海市200072

出　　处：《电力系统自动化》2016年第14期100-104,114,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51107078)~~

摘　　要：研究了反激式微型逆变器数学建模问题。针对现有建模方法中采用电阻等效代替电动势负载的做法导致模型不精确,以及无法得到诺顿等效模型的问题,提出了一种基于小信号分析的改进建模方法,利用该方法建立了反激式微型逆变器系统结构框图,得到了系统准确的诺顿等效模型。最后,分别进行了理论分析和仿真验证,并设计了250 W样机进行了实验验证。The mathematical modeling problem of the flyback micro-inverter is researched.In existing modeling methods,the electromotive force load is replaced by the equivalent resistance,which makes the model imprecise and the Norton equivalent model unobtainable.In view of these problems,an improved modeling method based on small signal analysis theory is proposed.By adopting the improved method,the structure diagram of a flyback micro-inverter system is developed,as is the accurate equivalent Norton model of the system.Finally,theoretical analysis and simulation verification are conducted,while a250 W prototype has proved the method.

关 键 词：反激逆变器 微型逆变器 小信号分析 诺顿等效模型 

分 类 号：TM464[电气工程—电器]