晶闸管电流型逆变器换流过程的动态数学模型及其数字仿真

The Variable-State Mathematical Model and the Simulation of the Current-Source Inverter to Drive Induction Motor During Commutation

本文以电机的动态等值电路为基础,对晶闸管串联二极管式电流型逆变器驱动感应电动机的换流过程,提出了精确的动态数学模型,并编制了计算机仿真程序。本文给出的仿真算法可以在不同滑差下,验证所选择的逆变器主要参数的合理性,从而协助电路设计人员正确地选择逆变器的各个参数,因而具有实用价值。

In this paper, the mathematical model of the current source inverter during commutation is given by means of the variable-state equivalent cireuit of an induction motor,and the simulation program is compiled using BASIC language. Some simulating result curves are showed in this paper, so do commutating time characteristics and commutating capacitor voltage characteristics.