多级串联高压大功率矩阵变换器的研究  

Research on Multi-stage Series-connection High-voltage High-power Matrix Converter

作　　者：蒋婷[1] 江剑锋[1] 曹中圣[1] 杨喜军[1] 

机构地区：[1]上海交通大学电子信息和电气工程学院,上海200240

出　　处：《电气传动》2012年第6期17-21,共5页Electric Drive

基　　金：自然科学基金项目(60934005)

摘　　要：提出和采用载波移相调制原理,仿真分析一种降压变压器次级绕组功率平衡的多级串联高压变频器,即一个次级变压器承担对称的3个三相-单相矩阵变换器输出,输出相位相同的三相-单相矩阵变换器通过升压变压器次级串联,构成一相高压交流输出。整个电路由网侧工频降压变压器、单相矩阵变换器阵列、载侧高频升压变压器以及滤波电路构成。仿真结果表明,所提出的多级串联高压变频器具有可行性和低成本特征。Based on carrier wave phase-shifted modulation,a multi-stage series-connection high voltage fre- quency converter with balanced output power of the step-down transformerts secondary windings was given,in which a winding burdens three symmetry three-phase to single-phase MC outputs and the same phase outputs of the MC are cascaded at the secondary side of the transformers,letting out one phase of high-voltage AC out- put. The circuit is consisted of a step-down industry frequency transformer at the network side,three-phase to single-phase MC arrays,a step-up high frequency transformer at the load side and filter components. The simu- lation result based on Matlab/Simulink shows that the proposed multi-stage series-connection high voltage fre- quency converter is feasible and low-cost.

关 键 词：高压变频器 多级串联 功率平衡 载波移相调制 三相-单相矩阵变换器 

分 类 号：TM46[电气工程—电器]