| 摘要 |
PROBLEM TO BE SOLVED: To obtain three-phase AC output which is hardly overmodulated and is little in distortion, in a matrix converter serving as a power converter that has three-phase AC power input and gets three-phase AC power of optional amplitude and frequency. SOLUTION: This matrix converter controller gets three-phase AC output which is hardly overmodulated and is little in distortion by calculating and using the ratio of outputting intermediate phase voltage among three-phase power voltages, so that the difference between the maximum one and the minimum one may be minimum among output voltage commands to be compared with triangular wave carriers in the matrix converter. COPYRIGHT: (C)2008,JPO&INPIT
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