输入串联输出并联逆变器的分布式均压控制策略

Distributed Voltage Sharing Control Strategy for Input-Series Output-Parallel Inverter

分析了输入串联输出并联(Input-Series Output-Parallel,ISOP)逆变器的输入均压原理,在此基础上提出一种新颖的分布式均压控制策略,解决了输入均压问题。与集中式均压控制策略不同,该控制策略将输入均压控制电路分散到各模块中,使其成为可独立工作的标准模块。各标准模块的控制电路通过互连线连接,组成ISOP逆变器。分布式均压控制策略促进了系统的模块化,提高了可靠性。对分布式均压控制策略的工作原理进行了分析,并设计原理样机进行实验验证。

This paper analyzes input voltage sharing control theory of input-series output-parallel （ISOP） inverter. On the basis of the control theory, a novel distributed voltage sharing control strategy is proposed to solve input voltage sharing problem. Compared with the centralized control strategy, the distributed control strategy makes each module with independent control system and working independently. It is convenience to make up ISOP inverter by connecting modules with communication lines. The distributed voltage sharing control strategy improves modularization and reliability. This paper also analyzes working principle of the distributed control strategy, and gives some experimental results to valid it.