Design And Simulation Of Urban Rail Transit Regenerative Braking Experimental System

With the purpose of adapting to the rapid development and technological progress of the city in the transportation sector, China have been doing amount of efforts and exploration in urban rail transit, requiring provinces and cities to train such specialized personnel in colleges and universities as well. As for training qualified personnel in urban rail transit to meet the market requirement, establishing urban rail transit power supply lab comes to be a necessary. Based on the study of urban rail transit regenerative braking, the regenerative braking experiment platform for teaching and preliminary experiment of scientific research is designed in this paper, which plays a important role in urban rail transit power supply lab.Energy consumption, energy feedback and energy storage are the main approaches to manage the regenerative energy. This article mainly introduces the super capacitor energy storage type and inverter feedback interconnection type, including their hardware structure and control methods. On this basis, a experimental platform suitable for small power situation is designed, this platform is in proportion to the real system.This article goes at the whole form of the experiment platform, and puts it into modular parts and designs the main circuit of each children part separately. Experimental platform is mainly composed of traction substation module, load module, inverter feedback module and super capacitor energy storage module. And then, this paper makes a preliminary design of experiments based on the experimental platform design, and puts forward some new ideas in experiments.At last, a virtual simulation platform of urban rail transit is designed so as to improve the teaching efficiency and reduce the cost of the laboratory construction. The model established on the Matlab platform bases on1500V urban rail transit DC power supply. The convenient and quick man-machine interface is designed by GUI. The advantages of the virtual experiment platform in the teaching and experiments are highlighted by introducing the Super Capacitor Energy Storage Type Regenerative Braking Simulation Experimental System.