【摘要】 控制系统鲁棒性是目前高性能交流调速研究中的热点问题之一。电机控制模型中的建模误差,以及系统运行中的参数漂移,诸如电机的定、转子电阻随着温度发生变化,相当于对所研究的控制系统加入了扰动。作为当前两种最具代表性的交流变频调速控制策略,转子磁场定向控制(RotorFieldOrientedControl,RFOC)和直接转矩控制(DirectTorqueControl,DTC)在鲁棒性能上各具特色。文中在对ABB和西门子公司的两台分别基于RFOC和DTC的15kW变频器进行系统测试的前提下,综合各种参数指标来考察这两种控制策略各自的鲁棒性(尤其是内部鲁棒性)。试验结果表明RFOC比DTC对转子参数表现出更强的依赖型。更多还原

【Abstract】 The robust performance is one of the hot topics in adjustable speed drive systems.The modelling inaccuracy and parameter drift in motor control,such as the stator and rotor resistance shift with temperature,act as the disturbance in the control system.As the most typical control strategies in AC motor drive system,Rotor Field Oriented Control(RFOC)and Direct Torque Control(DTC)have their own features in robust performance.Based on the comparison of 15kW inverters by ABB and SIEMENS co.respectively,their own robust performance(mainly the interior robust performance)is presented.The final result illustrates the more distinct dependence of RFOC on rotor parameters than DTC.更多还原