Unity Power Factor Operation Control Method For Single-phase to Three-phase Matrix Converter
Unity Power Factor Operation Control Method For Single-phase to Three-phase Matrix Converter
复制标题
单相至三相矩阵变换器的单位功率因数运算控制方法
DOI：
10.1541/ieejias.124.510
复制
发表时间：
2004
影响因子：
--
通讯作者：
K. Ohishi
中科院分区：
文献类型：
--
作者：
H. Haga;I. Takahashi;K. Ohishi
本文提出了一种新的矩阵变换器控制方法，以获得单位功率因数运行。矩阵变换器的源侧为单相电压，负载侧为三相交流电动机。开关装置数量为6个，变换器不需要电抗器或电解电容器。一般情况下，由于开关器件同时接在源侧和负载侧，矩阵变换器的输入电流波形和输出电压波形难以同时控制。本文采用代数传递矩阵，对单相到三相矩阵变换器的控制方法采用间接调制模型。间接调制模型将矩阵变换器视为两级变换变换器。该模型的整流器仅由二极管和小lc滤波器组成。因此，开关频率低于常规模型。该模型的逆变器既能调节输入电流波形，又能调节电机转速。IPM电机的逆变控制方案基于直接转矩控制（DTC）。附加的电流控制器改善了其输入电流波形。因此，矩阵变换器的最佳开关方式可以实现快速转矩响应和统一功率因数运行。通过实验测试，该方法达到了97.6%的功率因数。实验结果证实了该方法在矩阵变换器中的可行性。
This paper proposes a new control method of matrix converter to obtain the unity power factor operation. Source side of the matrix converter is single-phase voltage, and the load side is three-phase ac motor. The number of switching device is six, and the converter does not require a reactor or an electrolytic capacitor. Generally, it is difficult for matrix converter to control both its input current waveform and the output voltage waveform, because the switching devices are connected to both source side and load side. In this paper, applying an algebraic transfer matrix, the control method of single-phase to three-phase matrix converter applies the indirect modulation model. The indirect modulation model treats a matrix converter as a two-stage transformation converter. The rectifier of proposed model consists only diode and small L-C filter. Hence, the switching frequency is lower than the conventional model one. The inverter of the proposed model regulates both the input current waveform and the motor speed. The inverter control scheme for IPM motor is based on direct torque control (DTC). The additional current controller improves its input current waveform. Hence, an optimum switching pattern of the matrix converter realizes quick torque response and unity power factor operation. This paper describes that the proposed method achieves the power factor 97.6% by experimental tests. The experimental results confirm the feasibility of the proposed method for matrix converter.