Energy optimized sliding-mode control of sensorless induction motor drives
Energy optimized sliding-mode control of sensorless induction motor drives
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DOI：
10.1016/j.enconman.2009.05.006
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发表时间：
2009-09-01
影响因子：
10.4
通讯作者：
Hoseinnia, S.
中科院分区：
文献类型：
--
作者：
Hajian, M.;Markadeh, G. R. Arab;Hoseinnia, S.
本文提出了一种用于三相感应电动机（IM）驱动的无传感器滑模直接转矩和磁链控制方法。IM驱动器配备两电平空间矢量调制（SVM）电压源逆变器。在速度控制的情况下，采用传统的PI速度控制器来产生期望的转矩命令。定子和转子磁通矢量估计使用滑模观测器，并在转子速度估计。此外，IM模型包括通过电机双轴等效电路中的速度相关的分流电阻的铁损。电机效率也通过针对电机负载和速度的每个值调整定子磁通参考的幅度来优化。为此，采用了在线搜索方法（C）SM）。根据这种方法。对于负载转矩和转子速度的每个给定值，调节定子磁通参考，使得真实的输入功率的平均值变为最小。仿真和实验结果表明，所提出的控制方案的能力和有效性。(C)2009爱思唯尔有限公司保留所有权利。
In this paper a sensorless sliding-mode (SM) direct torque and flux control is described for three-phase induction motor (IM) drive. The IM drive is supplied with a two level space vector modulation (SVM) voltage source inverter. A conventional PI speed controller is employed to generate the desired torque command in the case of speed control. Stator and rotor flux vectors are estimated using a sliding-mode observer and are employed in rotor speed estimation. Moreover, the IM model includes the iron losses through a speed dependent shunt resistance in the motor two axis equivalent circuits. Motor efficiency is also optimized by adjusting the magnitude of the stator flux reference for each value of motor load and speed. For this purpose, an on-line search method (C)SM) is adopted. According to this method. for each given value of load torque and rotor speed, the stator flux reference is adjusted so that the average of real input power becomes minimized. Simulation and experimental results are presented to show the capability and validity of the proposed control scheme. (C) 2009 Elsevier Ltd. All rights reserved.