Abstract：Accurate flux orientation is the key for induction motor indirect field oriented control technology to achieve independent and decoupling control of torque and excitation, accurate flux orientation is sensitive to motor rotor time constant. In this paper, motor excitation and stator voltage control problem affected by misalignment of rotor flux orientation are derived and discussed; the improved rotor flux observer with amplitude and phase compensation based on voltage model is analyzed. In this paper, the other factors which affect accurate flux orientation are attributed to the rotor time constant, and then rotor flux accurate orientation real-time correction strategy based on q-axis flux error is proposed. Simulation and experimental results verify that theoretical analysis is correct and accurate field orientation correction strategy is effective.
孙大南, 刘志刚, 刁利军, 林文立. 牵引电机矢量控制转子磁场准确定向实时校正策略[J]. 电工技术学报, 2011, 26(9): 116-123.
Sun Danan, Liu Zhigang, Diao Lijun, Lin Wenli. Accurate Rotor Flux Orientation Real-Time Correction Strategy for Vector Control of Traction Motors. Transactions of China Electrotechnical Society, 2011, 26(9): 116-123.
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2011, Vol. 26 
