数字控制交-交变频—同步电动机矢量控制系统仿真

Simulation of a Digital Vector Control System of a Cycloconverter-fed Synchronous Motor Drive

数字控制的交 -交变频—同步电动机矢量控制系统是最复杂的电机调速控制系统之一 ,利用数字仿真可以非常有效地帮助我们探讨系统中各种问题。本文通过数字仿真提出和解决了系统中的一些关键技术和难点 ,包括引入时间补偿环节和新型电压模型 ,克服了离散控制带来的时滞和电流畸变 ;分别采用精确模型和简化模型策略 ,完成了数字仿真。所有仿真结果在实际系统中得到验证。

Digital vector control system of a cycloconverter fed synchronous motor drive is one of the most complicated drive control systems,it is better to use digital simulation to investigate the complicated system With the help of the simulation some difficulties and problems of the system are found and solved:a time compensation algorithm and a novel motor voltage model are adopted which overcome the time delay and current distortion caused by discrete control.All results are verified in practice.