摘要
在矢量控制和直接转矩控制的基础上,提出一种异步电动机按定子磁场定向控制的方法,采用定子电阻压降补偿和电流转矩分量的闭环控制,实现了定子磁链的控制。基于定子磁链处于稳态时,转子电流矢量应与转子磁链矢量垂直的原则,提出了一种闭环形式的定子电阻在线调整方法,仿真结果充分验证了该方法的可行性。
A new control strategy of asynchronous motors with stator flux orientation that combines the advantages of both vector control and direct torque control were presented. According to the dynamic model of asynchronous motors,stator flux was controlled respectively. Based on the vertical relation between rotor current vector and rotor flux vector when stator flux was in steady-state,a closed-loop stator resistance on-line tuning method was presented. The experimental results fully confirmed the feasibility of the method.
出处
《电机与控制应用》
北大核心
2010年第8期32-36,共5页
Electric machines & control application
基金
上海市教育委员会重点学科建设项目资助(J51301)
关键词
矢量控制
定子电阻
在线调整
异步电机
vector control
stator resistance
on-line tuning
asynchronous motor
