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.
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
关键词
无轨电车
逆变电源
逆变器
trolley buses
inverters
pulse width modulation/half bridge
