An Improved Multi-Agent Consensus Control Method for Virtual Coupling Train System
2023 China Automation Congress (CAC)（2023）
School of Electronics and Information Engineering
Abstract
The Virtual Coupling Train System (VCTS) is an innovative blocking mode that effectively solves the problems of low efficiency and high energy consumption in conventional high-speed railways. The stable operation of high-speed trains in a clustered formation is the core of the VCTS. This paper proposed an improved multi-agent consensus control method for VCTS by operating at optimal speed while maintaining the desired train tracking interval. Firstly, basic models were established to calculate the ideal interval. Then, the Improved Gravitational Search Algorithm (IGSA) was used to optimize the energy consumption of high-speed trains, and the optimal speed was used in the consensus speed control. To achieve a multi-train formation, a consensus-based control method was developed to realize that all trains operate at the ideal speed. On this basis, an improved multi-agent consensus control strategy was proposed, and the minimum adjustment method was applied to meet the actual constraints. Experimental simulations demonstrated that the algorithm can achieve stable operation of 5-train formations in less than 20 seconds and stabilize the tracking interval at 4.19 km when the train speed reached 304 km/h. The effectiveness of the algorithm was demonstrated by system stability analysis and actual simulation, providing a theoretical basis for research on distributed control algorithms for VCTS.
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Key words
High-speed train,Virtual Coupling Train System,Multi-Agent Consensus Control,Formation Control
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