【摘要】 介绍了变频技术的分类、发展和应用现状,然后重点对多电平电路拓扑结构、PWM技术、矩阵变换器技术的研究热点作了介绍和分析,最后指出变频技术今后发展的一些主要方向。更多还原

【Abstract】 <Abstrcat>Freauency conversion technique is to tranxform freauency technique of AC power supply based on PWM technique.First,the paper introduced the classification,development and the application to industry.Then,emphatic recommended the resrarch hotspot of the topology,PWM technique,matrix convertor technique of multilevel circuit.In the end,the paper indicated the mainly developing orientation of frequency conversion techmique in future.更多还原