【摘要】 用参数自适应法设计出定子磁链观测器,并将定子磁链观测器应用于直接转矩控制系统中,取代了传统的积分器.采用两个有效电压矢量取代传统的一个电压矢量,通过精确计算两个有效电压矢量和一个零矢量的作用时间,控制磁链轨迹在稳态运行中始终保持圆形.仿真结果表明综合提高了感应电机直接转矩控制性能.更多还原

【Abstract】 A parameters selfadaptive method is adopted to design stator flux observer,and the stator flux observer of an induction motor replace the classical pure integrator in the direct torque control system.Two available voltage vectors have replaced one classical available voltage vector,and the process time of the two available voltage vectors and the zero vectors are accurately calculated to keep a circle flux path in all the steady operation.The simulation results show that it synthetically improves the performance of DTC of inductance machine.更多还原