Braking Energy Utilization in Urban Rail Transit:Status and Prospects
The development of urban rail transit plays an important role in alleviating urban traffic congestion,and its regenerative braking energy utilization technology has attracted much attention.At present,the inverter regenerative braking energy utilization technology includes the topology structure of the feedback circuit,vehicle-network voltage relationship,and feedback device optimization.Other regenerative braking energy utilization technologies include various energy storage types such as supercapacitor energy storage,flywheel energy storage,and battery energy storage.On this basis,the regenerative braking energy utilization technology in urban rail transit based on inverter feedback and energy storage feedback was systematically and comprehensively reviewed,and the characteristics,trends,and key research issues in the development process of the technology were pointed out in terms of improving energy storage density,system stability,and device life,so as to provide guidance for further exploration and commercial development in this field.In addition,the research trends of regenerative braking energy utilization technology in urban rail transit were analyzed,and future research can focus on system topology optimization,energy storage capacity,system stability,service life,and technical and economic analysis.
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