三相-两相矩阵变换器的双电压合成策略  

Study on Two Line Voltage Synthesis Strategy of A 3-phase to 2-phase Matrix Converter

作　　者：方永丽[1] 谭国俊[1] 刘昊[1] 罗建锋[1] 孙常青[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电气传动》2009年第10期23-26,共4页Electric Drive

基　　金：中国矿业大学科技基金(E200427)

摘　　要：基于三相—两相矩阵变换器的4端输出拓扑,提出了双电压合成调制策略。该方法利用输入线电压瞬时值进行调制,将输入电压中绝对值最大的相电压作为基准电压,根据输出电压的正负,将输出回路的一端与基准电压相连,另一端相连的3个开关进行PWM调制来获得期望的输出电压和正弦的输入电流。输入功率因数为1时,能获得的最大电压传输比是1.5。进行了Simulink仿真和基于dSPACE平台的实验,结果验证了该策略的正确性和有效性。Based on the four output-leg topology of a three-phase to two-phase ac-ac matrix converter, two line voltage synthesis strategy was developed. The output voltages were synthesized from the instantaneous values of input voltage and the base voltage is defined as the input phase value that had the highest absolute value. According to the output voltage value, one terminal of output circuit is connected to the base phase and the three switches connected to another terminal are controlled by PWM to gain the desired sinusoidal output voltage and input current. The biggest voltage transfer ratio can reach to 1.5 when the input power factor is 1. Numerical simulation and experiment based on the dSPACE system were carried out and the results show the correctness and effectiveness of the proposed control algorithm.

关 键 词：三相-两相矩阵变换器 双电压合成 仿真 

分 类 号：TM46[电气工程—电器]