摘要
针对两台电机参数和负载不一致的情形,在原有单台电机磁场定向矢量控制模型的基础上,推导出适合一个逆变器控制两台电机的磁场定向控制模型。该方法考虑了电机参数的不同及电机定子电流的不一致,基于转子平均磁链进行定向,以两台电机的定子平均电流为控制目标,定子电流的d轴分量控制平均转子磁链,q轴分量控制平均电磁转矩。理论分析、仿真结果和实验结果表明了该控制方法的正确性和可行性。
Based on conventional induction motor model, a model of two parallel-connected induction motors was established which takes the different parameters and unbalanced loads of motor into account. A new field-oriented control strategy was proposed. In this method, the q-axis component of stator current is used to control the mean electromagnetic torque of two motors, and the d-axis component of stator current is used to control the mean rotor flux. The experiment results were presented, which are coincided with the simulation and the theoretical analysis. This verified the feasibility and the correctness of this control strategy.
出处
《电工技术学报》
EI
CSCD
北大核心
2006年第11期21-27,共7页
Transactions of China Electrotechnical Society
关键词
异步电机
磁场定向控制
并联运行
转子平均磁链
Induction motor, field-oriented control, parallel-connected, rotor average flux
