摘要
采用了基于静止坐标系的速度观测器 ,并根据电流型逆变器的特点提出一种只需电压传感器即可实现转速估算的方案 .同时 ,为增强整个系统的鲁棒性 ,提出了一种基于新型遗传算法的自适应 PI控制器 .最后通过对整个系统的仿真研究 ,得到了一些有益的结论 。
A speed observer of a current source inverter induction motor drive system in the stationary frame is proposed, and the speed estimation with only voltage sensor is investigated. But the system is sensitive to the motor parameter variations. We introduce an improved genetic tuning digital PI controller to tackle this key problem. Here we improved the traditional genetic operators by importing the rule of logical operation. The controller is used in the current and speed control loops, replacing the conventional proportional-integral (PI) control method. The results show that this sensorless speed vector control system has a strong robust to the parameter variation and is insensitive to the load disturbance.
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2001年第1期67-71,共5页
Journal of Zhejiang University：Engineering Science
关键词
遗传算法
无转速传感器控制
矢量控制
genetic algorithm
sensorless speed control
vector control
