Optimal Six Vector Switching Pattern in Matrix Converters for Reducing Harmonics and Switching Loss
作者机构：Department of electrical engineeringTsinghua UniversityBeijing 100084China
出 版 物：《CSEE Journal of Power and Energy Systems》 (中国电机工程学会电力与能源系统学报（英文）)
年 卷 期：2023年第9卷第1期
页 面：135-144页
核心收录：
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
主 题：Harmonics matrix converters modulation switching pattern
摘 要：This paper analyses harmonic distortion caused by the narrow pulse problem in matrix converters,and presents an improved switching pattern that is based on the basic five vector switching *** limited switching frequencies,the improved pattern solves the narrow pulse problem by applying an additional zero vector and adjusting the sequence of the four active vectors at the same time to minimize the switching *** results show that in the six vector switching pattern,a)the low-frequency harmonics caused by the narrow pulse problem are greatly reduced;b)the average switching frequency is reduced compared with the five vector pattern;c)the sampling frequency harmonics are apparently attenuated though a little 1/2 and 3/2 sampling frequency harmonics are produced;d)the THD of the output current is improved to the same level of the three zero vector switching pattern(TZVSP);e)the proposed switching pattern has benefits in both normal and unbalance input voltage *** results on a matrix converter platform,verify the benefits of the six vector switching *** dynamic,lower harmonics and lower losses can be achieved by using the proposed six vector switching pattern.
维普期刊数据库