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IPM智能功率模块电路设计及其在有源滤波器装置中应用
袁涛,郑建勇,曾伟,康静
作者单位
摘要:
智能功率模块IPM(Intelligent Power Module)功能完善,可靠性高,具有集成度高、体积小的特点。在有源电力滤波器装置中使用IPM可以简化装置的主电路,提高系统整体可靠性。IPM电路设计主要包括驱动电路部分、缓冲吸收电路部分以及保护电路部分。IPM驱动方案由驱动电源和光耦接口电路组成,根据模块的设计要求,给出了一种典型的高可靠性的IPM外部驱动方案。由于关断浪涌电压和续流二极管恢复浪涌电压的存在,IPM上会产生过电压,必须设计相应的缓冲吸收电路,来减少开关损耗,充分利用功率器件的功率极限。通过分析3种常见的缓冲电路,给出了相应的适用范围。IPM保护电路由模块内部的保护电路和外围辅助保护电路组成,外围保护电路的设计基于对IPM故障信号的处理。通过使用IPM构建有源滤波器的逆变电路,分析了其在有源滤波器装置中的应用。
关键词:  智能功率模块,电路设计,有源滤波器
DOI:
分类号:TN713
基金项目:
Circuit design of IPM and its application in APF
YUAN Tao  ZHENG Jian-yong  ZENG Wei  KANG Jing
Abstract:
IPM(Intelligent Power Module) has perfect functions,high reliability,high density and small cubage.The application of IPM in APF(Active Power Filter) equipment may simplify its main circuit and increase its overall reliability.The circuit design of IPM includes drive circuit,absorb circuit and protective circuit.The drive circuit is composed of drive power supply and optical interface circuit.According to the design demand of IPM,a typical external drive circuit of IPM with high reliability is introduced.The shutoff surge voltage and fly-wheel diode recovery surge voltage may cause IPM overvoltage,for which the buffer and absorb circuit is designed to reduce the switching loss and make full use of power device.Three normal buffer and absorb circuits and their application scopes are given.The protective circuit is composed of both internal and external protective circuits,and the latter is based on the processing of IPM fault signal.The application of IPM in APF equipment as inversion circuit is analyzed.
Key words:  IPM,circuit design,APF

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