The invention relates to freight locomotive traction converters, in particular to a high-power permanent magnet direct-drive freight locomotive modular traction converter. A traction device is installed in a traction converter cabinet, the traction device is composed of a pre-charging circuit, a four-quadrant power module, a set of intermediate circuit, an inversion power module and an isolation contactor, and the traction device drives a permanent magnet synchronous motor. The two sets of traction devices are identical in electrical principle and structure, cooling systems are independent of each other, and the redundancy of the systems is increased. As the permanent magnet direct drive traction system has the advantages of high efficiency, high power density, full life, low cost, low noise and the like, the development direction of high efficiency, energy conservation and environmental protection at present is represented, and the high-power permanent magnet direct-drive electric locomotive converter serves as a core device of a permanent magnet direct-drive electric transmission system. 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模块化牵引变流器。牵引变流柜内装有牵引装置,牵引装置由1个预充电电路、1个四象限功率模块,1套中间回路,1个逆变功率模块和1个隔离接触器组成,牵引装置驱动1台永磁同步电机。两套牵引装置电气原理及结构完全相同,冷却系统相互独立,增加系统的冗余度。由于永磁直驱牵引系统具有高效率、高功率密度、全寿命成本低、噪声低等优点,代表了当前高效节能、绿色环保的发展方向,大功率永磁直驱电力机车变流器作为永磁直驱电传动系统的核心装置,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 modular traction converter
大功率永磁直驱货运机车模块化牵引变流器
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 / 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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