双向变流型城市轨道再生能源利用技术研究

Research on Bidirectional Current Converted Urban Rail Regeneration Energy Application Technology

针对城市轨道交通系统的再生制动能量有效利用问题,介绍了一种新的解决方案——双向变流型再生电能吸收利用技术,对该系统的原理、结构、特点等方面进行了研究,针对系统三大主要功能即逆变回馈功能、整流牵引功能和稳压及单位功率因数控制功能进行了归纳;利用Infineon(英飞凌)提供的仿真软件进行仿真,对系统运行的功率因数、效率和保护兼容性进行实验。研究结果表明,双向变流型再生电能吸收利用系统具有能量双向流动、输出特性可控、功率因数可调、系统效率高和保护兼容性好等显著优点,不仅能够实现列车制动能量的再生利用,达到节能减排的目的,还能提高供电品质,是城市轨道交通再生能源利用技术中一种更为经济、有效的解决方案。

With regard to the issue on effective utilization of regenerative braking energy for urban rail transit system, this paper introduced a new solution - bidirectional converter type technology for absorption and utilization of regeneration energy. The principle, structure and characteristics of the system were studied, three main functions for the system that inverter feedback function, rectifier traction capabilities and voltage ＆ unity power factor control functions were summarized. The running power factor, efficiency and protection compatibility of the system were simulated by simulation software provided infineon. The results show that there are significant advantages of bidirectional converter type system for absorption and utilization of regeneration energy, including bidirectional flow of energy, a control output feature, an adjustable power factor, high efficiency and ideal protection compatibility. Not only can it reuse train braking energy to achieve the purpose of energy conservation, but also improve the quality of power supply, and it is a more economical and effective solution of regeneration energy technology to urban rail transit.