感应电机双滑模面变结构MRAS转速辨识-电机与控制学报.PDFVIP

14 10 Vol14 No10 2010 10 ELECTR IC MACH INES AND CONTROL Oct. 2010 MRAS 1 2 王庆龙, 张兴 ( 1. , 230601; 2. , 230009) : 为了研究感应电机无速度传感器磁场定向控制系统, 基于变结构控制和自适应控制理论, 出一种双滑模面变结构模型参考自适应观测器, 用于感应电机的转速辨识该方法将变结构和模型 参考自适应系统进行有机的整合, 选择转子磁链电压模型和电流模型分别作为参考模型和可调模型, 采用两模型输出的偏差构造了两 个滑模面, 利用代数计算方法获得转子估计速度理论分析和仿真 结果表明:所 出的感应电机转速辨识方法具有较高的转子磁链观测准确度, 改善了转速估计的动静 态性能; 对于参数变化具有很强的自适应能力, 同时算法简单, 适用于实时应用 : 感应电机; 无速度传感器; 矢量控制; 模型参考自适应; 双滑模面; 变结构; 辨识 : TM 346 . 2 : A : 1007- 449X (2010) 10- 0032- 05 Doublemanifold variablestructureMRAS speed identification for induction motor 1 2 WANG Q inglong , ZHANG X ing ( 1. Departm ent of Electron ics and Electrical Engineering, H efeiUn iversity, H efei230601, Ch ina; 2. College of Electrical and Au tom atic Engineering, H efei Un iversity of Technology, H efei230009, Ch ina) Abstract: A novel strategy of doublem anifold variable structure model reference adaptive system (VS MRAS) observers for the speed identification of a sensorless fieldoriented vector controlled inductionmo tor drives was presented. This observers combined MRAS w ith variable structure contro,l selected the voltage model of rotor fluxes as the referencemodel and the currentmodel of rotor fluxes as the adjustable model, and formulated doublem anifold according the output errors of wt o models. In the presented ob servers, the speed was estmi ated by algebraic. Theoretical analysis and smi ulation results show that the presented observers possesses the