通用电力电子电路仿真方法和仿真程序的研究

Research of General Power Electronic Circuit Simulation Method and Development of the Simulation Program

本文提出了一种新的电力电子电路仿真方法,此法以改进节点法为基础,建立了开关元件和多端口变压器的伴随模型,采用离散相似法仿真控制电路,采用同步数据变换法进行全系统仿真,提出厂电力电子电路网络数据结构的概念,研制了可用于电力电子电路大信号瞬态的通用仿真软件包。软件仿真速度、精度、可靠性和易读性都比传统的方法有较大的提高,实践证明这种新的仿真法是十分有效的。

Described is a new and efficient simulation method which based on MNA(Modified Nodal Approach) . The adjoint models of switches and multiport transformer were provided. The method use synchronous- data - exchange approach to simulate system properties and use discretc- similar approach to handle control circuit. In this paper, the concepts of power- electronic- circuit- network data structure were proposed and PESP(Power Electronic Simulation Program) software package which can simulate transient courses of general power electronic circuits was developed. The package is written in PASCAL,with about 2700 executive statements. The simulation speed and precision, software reliability and readability are greatly enhanced to traditional approaches. The proposed new method is very efficient as the applications proved.