Research And Implementation Of Relay Protection Of The Simulation Training System Of The Metro OCC Power Dispatcher

The metro operation control center plays a crucial role in security operation, it is the centralized command center of power dispatcher, traffic dispatcher and environmental dispatcher for power supply, traffic organization and environmental conditions. Nowadays, with the rapid development of the urban rail transit around the world, various types of qualified subway dispatchers are surge in demand. The traditional training way cost too much time and has low efficiency, it can not solve the contradiction between supply and demand, while designing the simulation training system of the metro OCC dispatcher with the use of computer simulation technology can solve that contradiction, because of its flexible and efficient process. Therefore, the thesis has a significant meaning to make scientific on the simulation training system of the metro OCC power dispatcher.The relay protection module is an important part in the simulation training system of the OCC power dispatcher, it has significant meaning for the entire simulation training whether can realistically simulate operation of the actual power supply system. The main study in this paper is as follows:(1) This paper firstly analyzes the hardware and software system architecture of the simulation training system of the OCC power dispatcher based on studying the metro power supervisory control and data acquisition, analyzes the functional modules of the subsystems, and makes the demand of relay protection module. Then, this paper analyzes and summarizes the faults and relay protections based on studying the power supply system, it offers options for the instructor subsystem.(2) According to the analysis of the relay protections of the power supply system, this paper points of AC and DC systems, and using a hybrid simulation method builds models of relay protections and develops that, these models can well meet the requirements of accuracy, real-time and applicability.(3) From the overall perspective of the relay protections module, according to the specialty of relay protections of the metro, this paper builds models of protective relaying equipments, hierarchical model, designs its flow process, and develops that. These models and flow process can meet the requirement of accuracy, and also can meet the requirement of real-time.(4) Finally, this paper has been tested to show that the model and flow process can well meet the requirement of simulation of the relay protection and the requirement of the subject.