可用于矩阵变换器的低成本电力电子模块的几种新方法

New Steps Towards a Low-Cost Power Electronic Building Block for Matrix Converters

本文分析了将矩阵变换器双向开关集合成电源模块的一些方法。为电源模块所作的这些分析提供了两种最佳结构,一种用于小功率矩阵变换器,一种用于大功率矩阵变换器。提出了矩阵变换器用的电力电子模块的配置结构图,它包括换向控制逻辑、过电流保护、确保安全运行和使用双向开关运行等问题。提供了一种用于小功率三相/三相矩阵转换器的新型电源模块结构。使用自举电路给控制驱动器供电,则所提出的配置结构仅需要三个隔离的电源。推荐了一种新型的输入滤波器结构,它只用两个扼流圈铁心,并使尺寸减小。

This paper analyzes some aspects of integrating the matrix converter bi-directional switches into a power module： one for low-power and another for high-power matrix converters. The configuration of a power electronic building block for matrix converters is proposed. This includes the commutation control logic and the over-current protection, provides safe-operation and eliminates the problem of operating with bi-directional switches. A new power module topology for a low power three-phase to three-phase matrix converter is proposed. By using the bootstrap circuits to feed the gate-drivers, the proposed configuration requires only three insulated power supplies. A new input filter topology is proposed, using only two choke cores and providing the size reduction.