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最近,具有自截止功能的GTO晶闸管发展很快。应用这种元件的斩波装置及控制感应电动机的VVVF逆变器已达到实用阶段。本文主要介绍斩波器和VVVF逆变器用的GTO晶闸管的开发过程及其应用。一、功率电子设备在电气车辆上的发展过程 60年代初,在直流电气车辆的电阻制动凸轮轴控制方式上增加电力再生制动机能的励磁斩波控制方式,用于站间距离较长的近郊电车上。在站间距离较短、频繁起动、停车的地铁车辆上,电阻凸轮轴控制部分改为晶闸管斩波装置,使牵引时的无触点控制与
Recently, GTO thyristors with self-closing function have developed rapidly. A chopper device using this component and a VVVF inverter that controls the induction motor have reached the practical stage. This article mainly introduces the development process of GTO thyristor used in chopper and VVVF inverter and its application. First, the development of electrical and electronic equipment in the electrical vehicle In the early 60s, DC braking electric camshaft control of electric vehicles to increase power regenerative braking excitation chopper control mode for a long distance between stations Suburban tram. In the short distance between stations, frequent start and stop the subway vehicles, the control part of the resistance camshaft replaced by thyristor chopper device, the traction control and contactless