基于全阶磁链观测器的间接转矩控制研究

介绍了间接转矩控制的基本原理,提出了基于单神经元PID的动态位角调节器来改善转矩脉动响应的方法,建立了一种能同时准确观测定子磁链和转子磁链的新型全阶磁链观测器,通过引入弱磁控制算法,将间接转矩控制扩展到全速度区范围.仿真实验结果表明,定子磁链轨迹为圆形,转矩脉动小,动态响应快,开关频率恒定,证明了该方案是可行的,并且具有良好的动静态性能.

Research on Indirect Torque Control based on Full Order Flux Observer

The principle of indirect torque control is introduced.The dynamic angle controller based on neuron PID was proposed for improving torque ripple.A new full order flux observer was established,which could observe the stator and rotor flux accurately.Indirect torque control was extended to the whole speed range by combination of power fieldweakening method.The simulative and experimental results show that the stator flux track is a circle,the torque ripples is small and the dynamic response is fast.Also there has little noise because the switching frequency is constant.The control scheme is available and has good dynamic and steady response performance.