Abstract：Aimed at problem of poor quality of waveforms and that of complicated modulation strategy, a novel over-modulation in matrix converter based on limit-trajectory is proposed in this paper. This strategy is adopted in matrix converter based on the virtual uncontrollable modulation and used to ensure linear modulation in all over-modulation regions. The algorithm is simple and the simpler control algorithm reduces memory space and linear calculation is instead of look-up table. Simulation and experiments show that the voltage transfer ratio can be improved from 0.95 to 1.0 and the quality of output waveforms is effectively enhanced.
李生民, 鲁静, 钟彦儒. 一种基于极限轨迹法的新型矩阵变换器过调制策略[J]. 电工技术学报, 2012, 27(6): 110-117.
Li Shengmin, Lu Jing, Zhong Yanru. An Over-Modulation in Matrix Converter Based on Limit-Trajectory. Transactions of China Electrotechnical Society, 2012, 27(6): 110-117.
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