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A sensorless matrix-converter IPMSM drive based on high frequency injection method

机译:基于高频注入法的无传感器矩阵转换器IPMSM驱动器

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This paper proposes an improved sensorless matrix-converter IPMSM drive system using a high frequency injection method. By suitably choosing different virtual dc-bus voltages and compensating the duty cycle of the switching states, the estimated position error can be obviously reduced. A 32-bit digital signal processor, TMS-320LF-2407A, is used to execute the rotor position estimation and the whole control algorithm. Experimental results show that the estimated rotor position error is reduced from 10 to 5 electrical degrees when compared to the traditional sensorless matrix-converter. In addition, the total harmonic distortion (THD) of the output currents is reduced near 2%. As a result, the low speed responses of the proposed sensorless drive system is obviously enhanced. The adjustable speed of the sensorless IPMSM drive is from 25 r/min to 1800 r/min.
机译:本文提出了一种改进的使用高频注入方法的无传感器矩阵转换器IPMSM驱动系统。通过适当地选择不同的虚拟直流母线电压和补偿的开关状态的占空比,可以明显降低所估计的位置误差。使用32位数字信号处理器TMS-320LF-2407A来执行转子位置估计和整个控制算法。实验结果表明,与传统的无传感器矩阵转换器相比,估计的转子位置误差从10电度降低到5电度。此外,输出电流的总谐波失真(THD)降低了将近2%。结果,明显提高了所提出的无传感器驱动系统的低速响应。无传感器IPMSM驱动器的可调速度为25 r / min至1800 r / min。

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