针对传统变频电机试验系统只能在固定转速下进行负载试验,研究了一种用于变频电机试验的多转矩类型负载系统。变频电机动态性能试验负载系统是根据感应电机的特性,建立数学模型,通过计算,快速调节感应电机的供电电压和频率,从而模拟出多种类型的动态负载。研究了变频电机动态性能试验负载系统的工作原理、模拟方法,并进行仿真分析,表明其可满足不同负载类型下的变频电机动态性能试验要求。

A multitorque load system due to the load test only at a fixed speed in traditional variable frequency motor experiment system was studied. Based on the character of induction machine, the multitorque load system set up mathematical model and calculate to regulate the service voltage and frequency swiftly. Hence many kinds of dynamic load were simulated. The operating principle was illustrated, simulating methods and analysis of the system, which attested to reliability of the load system in meeting the demand for the experiment.

TM 306

沪江基金资助项目(B1402/D1402)