CAJ | 학술논문

为了改进自抗扰控制器(active-disturbance rejection control，ADRC)性能，同时解决永磁同步电机(permanent magnet synchronous motor，PMSM)传统直接转矩控制(direct torque control，DTC)中存在的磁链和转矩脉动大以及机械速度传感器的使用降低系统可靠性等问题，提出一种 PMSM DTC无传感器运行优化方法。设计了ADRC速度调节器，阐述了将最小二乘支持向量机(LSSVM)最优回归模型有效嵌入ADRC调节器的实现方法，对ADRC进行优化，以提高 ADRC 观测精度及系统动态响应速度，改善系统的抗干扰能力；同时，在两相静止坐标系下提出基于扩张状态观测器同时对定子磁链和转速进行估计的方法，以降低磁链和转矩脉动，同时实现无传感器运行。仿真和实验结果验证了该方法的可行性和有效性。
위료개진자항우공제기(active-disturbance rejection control，ADRC)성능，동시해결영자동보전궤(permanent magnet synchronous motor，PMSM)전통직접전구공제(direct torque control，DTC)중존재적자련화전구맥동대이급궤계속도전감기적사용강저계통가고성등문제，제출일충 PMSM DTC무전감기운행우화방법。설계료ADRC속도조절기，천술료장최소이승지지향량궤(LSSVM)최우회귀모형유효감입ADRC조절기적실현방법，대ADRC진행우화，이제고 ADRC 관측정도급계통동태향응속도，개선계통적항간우능력；동시，재량상정지좌표계하제출기우확장상태관측기동시대정자자련화전속진행고계적방법，이강저자련화전구맥동，동시실현무전감기운행。방진화실험결과험증료해방법적가행성화유효성。
There are big ripples on stator flux linkage and torque when using traditional direct torque control (DTC) on permanent magnet synchronous motors (PMSM). A system with mechanical speed sensors has lower reliability and higher system cost. To solve these problems, also in order to improve active-disturbance rejection control (ADRC) performances, an optimization method for PMSM DTC sensorless operation was proposed. The speed regulator based on ADRC was designed. The realization of the optimal least squares support vector machines (LSSVM) regression model embedded in ADRC regulator was expounded, which optimized the ADRC regulator. The observation precision and dynamic response of the ADRC were improved. The anti-interference ability of the system was further improved. The extended state observer was established in the two-phase static coordinate system to estimate stator flux linkage and motor speed in the meantime. The ripples on flux linkage and torque have been reduced, and sensorless speed control has been realized. Simulation and experiment results verify the feasibility and effectiveness of this method.