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WEIGHT-COEFFICIENT-FREE DOUBLE-VIRTUAL-VOLTAGE-VECTOR PREDICTIVE TORQUE CONTROL METHOD FOR FIVE-PHASE PERMANENT MAGNET SYNCHRONOUS MOTOR
WEIGHT-COEFFICIENT-FREE DOUBLE-VIRTUAL-VOLTAGE-VECTOR PREDICTIVE TORQUE CONTROL METHOD FOR FIVE-PHASE PERMANENT MAGNET SYNCHRONOUS MOTOR
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机译：五相永磁同步电动机的重量系数的双虚拟电压 - 矢量预测扭矩控制方法
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摘要
Disclosed is a weight-coefficient-free double-virtual-voltage-vector predictive torque control method for a five-phase permanent magnet synchronous motor. The method comprises: obtaining a current component under a two-phase static coordinate system and a voltage output at a moment k; performing delay compensation of a beat to obtain a current component under the two-phase static coordinate system at a moment k+1; predicting magnetic flux linkage and torque at the moment k+1; predicting a reference voltage vector required at the moment k+1 according to a magnetic flux linkage and torque dead-beat principle so as to select a first virtual voltage vector; and selecting a second virtual voltage vector according to a voltage error tracking principle, respectively calculating the action times of the two vectors, and synthesizing and outputting same. In the present invention, on the basis that the original topological structure of a drive control system of a five-phase permanent magnet synchronous motor is not changed, harmonic waves in the five-phase motor are effectively suppressed by using virtual voltage vectors; moreover, vectors are directly and quickly selected by using a dead-beat principle, such that the calculation workload of the traditional model prediction control method is greatly reduced.
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