The Electrical Coupling Simulation Of Trains And Network In Train Running Simulation Platform

The electrical coupled simulation of the trains and network in this paper refers to the coupling simulation between traction power supply system and trains operation system based on the power of traction drive and network voltage characteristics. The subject of this paper is one of the most important parts of the new laboratory of train operation simulation platform, which is the Ministry of Education Repair Purchased Items of "Train Control and Traction Drive Integrated Simulation Platform". It generates core data in the platform that can support other sub-modules of the integrated simulation platform. The system of traction power supply can calculate train voltage considering characteristics of traction drive power and the network voltage. The platform supports the subject of train group optimization control in order to reduce train energy consumption, such as reducing the train voltage fluctuations and increasing utilization of train regenerative braking energy. It also can help engineering design or production of the railway system to design and analyze actual design work. So it is very important for us to research the topic of electrical coupled simulation between the trains and traction power supply system at the train simulation platform, in order to research the train group control optimization algorithm.The object in this paper contains the train operation, the traction power supply system and electrical coupled relationship. On the basis of analysis of structure and function of traction power supply system and train running, we achieve the goal by software of Visual C++and HLA/pRTI. At first the paper analyzes the train running model, control strategy and multi-train model. At the same time it analyzes the mathematical description and network electrical coupled between the traction power supply systems and trains to build the simulation model of traction power supply system. After that, it describes the platform framework of the train operation simulation, data structures, interfaces and the calculation process in train operation simulation system and traction power supply system. Finally, the simulation of the train operation in the traction power supply system shows the correspondence between the train operating conditions and the net voltage. The simulation of the extremely low pressure conditions explains the interaction of voltage and trains actual power in coupling characteristics.The electrical coupled simulation platform of high-speed trains and network divides the traction power supply system model and the train group model into separate nodes. Based on distributed simulation technology, we have achieved the data exchange and logical interaction exchange. A lot of simulation results show that the system architecture has good simulation synchronization, high data transmission efficiency, which can speed up the progress of the overall simulation.