The invention relates to a freight locomotive traction converter, in particular to a high-power permanent-magnet direct-drive freight locomotive traction converter. The high-power freight permanent-magnet direct-drive electric locomotive converter adopts two groups of independent traction main circuits, and each group of traction main circuits comprises a pre-charging function circuit, a four-quadrant power module, a four-quadrant chopping module, an independent intermediate loop, a traction inversion power module and a three-pole isolation contactor. Two sets of identical traction devices are arranged in one converter cabinet, and the shaft power output is larger than 1200kW, therefore the traction converter is suitable for permanent magnet direct drive system electric locomotives. According to the invention, the key technology of a high-power high-torque freight permanent magnet direct-drive electric transmission system can be broken through, energy can be saved for rail transit vehicles, environmental protection is realized, and economic benefits are brought.
本发明涉及货运机车牵引变流器,具体为大功率永磁直驱货运机车牵引变流器。一种大功率货运永磁直驱电力机车变流器,变流器采用2组独立的牵引主电路,每组牵引主电路包含一个预充电功能电路、一个四象限功率模块、一个四象限斩波模块、一个独立的中间回路、一个牵引逆变功率模块和一个三极隔离接触器。本发明一个变流柜内设置有两套完全相同的牵引装置,轴功率输出大于1200kW,适用于永磁直驱系统电力机车。本发明专利不但可以突破大功率高转矩货运永磁直驱电传动系统关键技术,又可以为轨道交通车辆节约能源,实现绿色环保,带来经济效益。
High-power permanent-magnet direct-drive freight locomotive traction converter
大功率永磁直驱货运机车牵引变流器
2021-04-30
Patent
Electronic Resource
Chinese
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B61C Lokomotiven , LOCOMOTIVES / H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS , Schutzschaltungsanordnungen / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern |
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