Research On The Architecture Of Vehicle Operation Control System Of High-speed Maglev Train

High-speed maglev train operation control system is one of the three key subsystems of high-speed maglev train transportation system.The shanghai high-speed maglev train demonstration line has been successfully operated for fifteen years,however,the existing vehicle operation control system(VOCS)cannot meet the operational requirements of the long distance line since it does not achieve complete redundancy.Therefore,it has theoretical significance and application value to study the realization technology and switching strategy of the VOCS which is completely redundant at the head—tail.First of all,a new type of the VOCS architecture with complete head-tail redundant was proposed.The Markov models were established for the new and existing vehicle operation control systems.The reliability of these two systems was also compared and analyzed.Then,a simple vehicle operation control system architecture that can support head-tail failover was designed,and the switch logic control strategy of the VOCS under failure condition was studied.Finally,the simple hardware platform of the VOCS was set up,and the logic control software for the failover of the VOCS was developed,then the test verification was completed based on the simulation environment.The main contents of the dissertation as follows:Firstly,the operation mechanism of the German maglev train was analyzed,the architecture and interface relationship of the VOCS were studied.Based on the latest research results of the wheel-rail railway,a new type of VOCS architecture with complete redundancy was proposed.On the basis of this,the corresponding Markov models were established for the new and the existing VOCS,which verified the high reliability of the new VOCS.Secondly,the requirements analysis and scheme design of the simple VOCS that can be used to support the failover were completed.And the system communication method were analyzed.The switch logic control strategy of the VOCS under failure condition was studied,meanwhile the simple hardware platform of the VOCS was set up.Then the logic control software for the failover of the VOCS was developed to achieve the goal of complete redundancy.Finally,the test verification based on the simulation environment was completed.The feasibility of the VOCS which was proposed in this dissertation was verified.