The Key Technology Research And Application Of Locomotive Wireless Remote Multi-traction Synchronous Control For Heavy-haul Train

As the railway freight transportation develops towards the direction of heavy haul, the first concern of running long heavy haul train is the remote control of distributed power drive system. Locomotive wireless remote multi-traction synchronization control system is not only the key system to achieve this, but also the bottleneck of heavy haul combined train development. Thus, it has great significance in the researching and developing the key technology of locomotive wireless remote multi-traction synchronization control system and its application.The coordinated operation of multi-traction locomotive, which is distributed on different positions of heavy-haul combination freight train, is implemented by the locomotive wireless remote multi-traction synchronization control system. This system is multi-input and multi-output and has non-linear feather. This dissertation focues on the theory researching, topology building, math modeling and algorithm computing of the locomotive wireless remote multi-traction synchronization control system, and tries to propose a constructive system solution scheme. At last, verify the creativity and practicality of proposed scheme by building a prototype and making several experiments. The main research work of this dissertation includes the following:First, a systematic research on system modeling of locomotive wireless remote multi-traction synchronization control system has been implemented. A summary of the modeling technology deficiency aiming at this system is concluded through analyzing the modeling method and control scheme of this system from ideas both at home and abroad. Then, new modeling method is explored and analyzed. Novel way of analyzing, feathered as simple, affective and practical, has been proposed. This chapter particularly focuses on analyzing and researching several key technologies, such as wireless communication, locomotive remote synchronization control, train fault diagnosis and safety-oriented control and optimization of locomotive wireless remote multi-traction synchronization control system.Secondly, effectively in a timely way, implement the data transfer and enhance the locomotive wireless multi-traction synchronization performance of heavy haul combined train and establish the wireless transmission synchronization performance Markov decision model for locomotive multi-traction control. A novel wireless transfer subsystem of locomotive wireless multi-traction synchronous control system based on above theory has been built. Utilize limited stage backward recursive iterative algorithm to achieve spatial wave transmission based on real-time routing control of locomotive multi-traction synchronization control.According to the traction characteristics of heavy haul combined train, this dissertation utilizes knowledge basing expert system on fault diagnosis to predict system safety status and trends so as to achieve fault prediction and fault safety-oriented prediction.Locomotive wireless remote multi-traction synchronization control system consists of many subsystems which have complex relevance. Use Deterministic Stochastic Petri Nets to model this system, simplify the subnet relation model and optimize transmission mechanism. Therefore, the performance of the whole system has been enhanced and optimized.Finally, based on above research, a prototype is built, and applied to locomotives. Test and experiment are implemented. By comparing the experiment result, the validity of modeling research and engineering design optimization on locomotive wireless remote multi-traction synchronization control system has been proved.The research work in this dissertation is based on the most recent work from ideas both home and abroad. The locomotive wireless remote multi-traction synchronization control system research and verification is carried out from both theory analyzing and system modeling, along with prototype building and testing. This dissertation is benefiting this research area by not only providing design foundation, but also enhancing the development of this system. Based on this research and technology, the locomotive wireless remote multi-traction synchronization control system now goes into mass production, and elevates the existing railway freight transportation capacity; it breaks the monopoly of foreign technology, and helps the development of China's heavy haul transport.