Train-ground integrated multifunctional emergency energy storage power supply system and control method thereof

Abstract

The invention discloses a train-ground integrated multifunctional emergency energy storage power supply system and a control method thereof. The control method comprises two control modes, one mode isa train-ground integrated coordination control strategy of train-ground coordination and multi-train coordination, and the other mode is a train-ground hierarchical control strategy independently controlled by the train and the ground; energy management control over the ground energy storage system and the train-mounted energy storage system is achieved through two control strategies, and train-ground integrated traction emergency energy storage power supply is completed. The problems of stability and safety of train operation under the condition of an extreme special line and overlarge network voltage fluctuation of the traction network can be solved; train-mounted energy storage and ground energy storage power output can be distributed in real time, safe and efficient operation of a train is ensured, the network voltage fluctuation of a traction network is reduced, the emergency power supply capacity of the train and the traction network under extreme conditions can be provided, andthe stability and safety of operation of the train and the traction network are ensured.

Description

technical field [0001] The invention belongs to the technical field of train power supply, in particular to a train-ground integrated multifunctional emergency energy storage power supply system and a control method thereof. Background technique [0002] In the railway section facing remote areas, due to the harsh operating environment of the railway, the weak external power grid, and difficult maintenance, the reliability of power supply is facing great challenges. For example, the Sichuan-Tibet Railway has the above-mentioned problems. Once the traction network fails, it will take a long time to repair it, which may bring uneasiness to passengers, and even threaten the health and life safety of passengers. Emergency power supply under extreme lines is currently a very challenging research topic. [0003] The traditional train emergency power supply system can only deal with the emergency situation of the train under normal line conditions, and is no longer suitable for ex...

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Problems solved by technology

[0004] In order to solve the above problems, the present invention proposes a vehicle-ground integrated multifunctional emergency energy storage power supply system and its control method, which can solve the problems of stability and safety of train operation under extreme special line conditions and excessive fluctuations in the network voltage of the traction network problem; it can real-time distribute the power output of on-board energy storage and ground energy storage, ensure the safe and efficient operation of the train, reduce the fluctuation of the traction network voltage, improve the emergency power supply capacity of the train and the traction network in extreme cases, and ensure the safety of the train and the traction network. Stability and security of operation

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