基于自抗扰的开关磁阻电机直接转矩控制系统研究

Direct Torque Control of Switched Reluctance Motor Based on Active Disturbance Rejected Control

开关磁阻电机驱动系统以其生产成本低、调速性能高、可靠性强、控制方式灵活等诸多特性,在与其他类型电动机竞争中抢占了相当大的市场份额。可是,它的转矩脉动及噪音问题较严重,限制了其进一步的推广及应用。由于常规的直接转矩控制算法的不足,引入自抗扰控制技术改进系统的转速环。仿真结果表明,开关磁阻电机的转矩脉动得到了进一步的抑制的同时,系统的动、静态性能和鲁棒性也得到相当大的提高。

With many features, such as low production cost, good performance of speed adjustment, strong reliability, flexible control strategies and so on, the Switched Reluctant Drive system seizes a considerable market share in the competition with other types of motor. However, the inherent torque ripple and the following noise restrain its develop and application further.Due to the lack of traditional Direct Torque Control algorithm, Using the theory of Active Disturbance Rejected Control to improve the speed loop, The simulation results show that.The torque ripple is limited more effectively. Meanwhile, the dynamic, static performance and robustness of the system have also big improvements.