基于数学构造的矩阵变换器输入功率因数补偿算法  

An Input Power Factor Compensation Algorithm Based on the Mathematical Construction for Matrix Converters

作　　者：但汉兵[1] 粟梅[1] 熊文静[1] 李幸[1] 孙尧[1] 韩华[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南省长沙市410083

出　　处：《中国电机工程学报》2014年第18期2873-2880,共8页Proceedings of the CSEE

摘　　要：为了滤除矩阵变换器的输入电流高频谐波成分,需要安装输入滤波器。然而,输入滤波器会影响矩阵变换器输入功率因数,尤其在轻载运行情况下影响较大。为了在更宽范围内实现单位功率因数运行,提出一种基于数学构造的输入功率因数补偿算法,算法采用预估-校正思想,实现了更宽范围的精确单位功率因数运行,同时也不依赖输入滤波器的具体参数。实验结果验证了所提算法的正确性与可行性。The input filter is necessary for matrix converters to eliminate the high-frequency harmonic components of input currents. However, the implementation of the input filter will also reduce the input power factor, especially under the condition of light load operation. To realize the unity power factor in a wider range, a power factor compensation algorithm based on the mathematical construction was proposed. This algorithm adopts prediction-correction idea to realize unity power factor in a wider range and is independent of the specific parameters of input filter. Experimental results validate the correctness and effectiveness of the proposed compensation algorithm.

关 键 词：矩阵变换器 输入滤波器 数学构造 单位功率因数 补偿能力 

分 类 号：TM46[电气工程—电器]