感应电机能量最优化控制的研究

感应电机能量优化控制常根据电机静态模型采用恒转差频率控制。但该控制方案会导致调速系统的动态性能和稳定性降低。从感应电机的动态模型出发,提出了一种借助转子磁链控制实现感应电机能量优化的控制方案。根据外环给定电磁转矩的不同,调整内环转子磁链给定值,以达到能量优化控制的目的。在调速过程中,控制方案确保转子磁链紧跟给定值,使输出的电磁转矩紧跟给定值。因此,系统的稳定性、动态性能良好。

Research on Energy Optimization Control of Asynchronous Machine

The energy optimization control of asynchronous machine often uses the permanent slip frequency control according to the electrical machinery static model.But the control plan can recluce the dynamic performance and the stability of the velocity modulation system.This paper provides a kind of the plan,which optimized enery control with the aid of the rotor flux linkage control realization asynchronous machine energy based on the asynchronous machine dynamic performance model.According to the inner rim rotor flux linkage given value can reach the purpose of the energy optimization control.In the velocity modulation process,the control plan guarantees the rotor flux linkage to follow dose on the given value.Therefore,the system stability and the dynamic performance is fine.