无轨电车逆变电源的研制  

Research of a Power Source Converter Used in Trolley Buses

作　　者：李峻[1] 

机构地区：[1]大连铁道学院电气工程系

出　　处：《大连铁道学院学报》1997年第2期26-29,共4页Journal of Dalian Railway Institute

摘　　要：根据无轨电车的实际需要和工作条件，设计了一种取代无轨电车直流发电机的ＰＷＭ型高频高压逆变电源。该逆变器工作电压为ＤＣ５５０～６５０Ｖ，主电路采用ＤＣ－ＡＣ－ＤＣ变换方式，功率变换器为半桥式电路，功率开关管使用ＩＧＢＴ，并用专用模块驱动。控制电路使用了脉宽调制集成电路控制器ＳＧ２５２４，逆变器的辅助工作电源由低压逆变产生试验样机在无轨电车上进行了运行试验，结果表明。According to the trolley-buses′operating conditions and requirements a pulsewidth modulation power source converter has been designed to replace the DC generators incorporated introlley-buses.The main circuit is a DC-AC-DC converter reling on the 550V～650V DC power supply.It′s converting power part is a half bridge circuit in which power swiching transistors(IGBT)and the specialized intergrated driving circuits are used.The pulsewidth modulater(SG2524)is used in it′s control circuit.Another lower voltage power converter supplies a supplementary power for the main converter.The samples of this kind of the power source converters have practically been tested in the trolley-buses in Dalian city.The results show that the power source converters can completely replace the DC generators intalled in the trolley-buses.The problem what the storage batteries intalled in the trolley-buses cannot completely be recharged before has been solved.

关 键 词：无轨电车 逆变电源 逆变器 

分 类 号：U482.2[交通运输工程—载运工具运用工程]