Multi-source emergency power supply system and method based on electric vehicle power storage array

Abstract

The invention provides a multi-source emergency power supply system and method based on an electric vehicle power storage array. The system comprises the distributed electric vehicle power storage array, a diesel generator, a civil air defense manpower generator, a hydrogen fuel cell and five paths of power supplies of a low-voltage power distribution room civil air defense power supply incoming line. The distributed electric vehicle power storage array is connected to the input end of a five-power-supply switching device through a first inverter. The hydrogen fuel cell is connected to the input end of the five-power-supply switching device through a second inverter, the other three power supplies are directly connected to the input end of the five-power-supply switching device, and the output end of the five-power-supply switching device is connected to a multi-path civil defense equipment distribution box. The power batteries of electric vehicles which are parked in an underground garage at ordinary times are used as units to form the distributed electric vehicle power storage array; on the basis, a multi-source power supply system is formed by combining a diesel generator, a civil air defense manpower generator, a hydrogen fuel cell and the civil air defense power supply incoming line of a low-voltage power distribution room, and the power supply reliability of civil air defense engineering in wartime can be greatly improved.

Description

technical field [0001] The invention relates to a multi-source emergency power supply system and method based on electric vehicle storage arrays, belonging to the field of building emergency power supply, especially the field of civil air defense engineering power supply. Background technique [0002] The civil air defense project is an underground protective building built separately to ensure the shelter of personnel and materials in wartime, civil air defense command and medical rescue, and a basement that can be used for air defense in wartime built in combination with ground buildings. The civil air defense project is an important facility to prevent sudden enemy attacks, effectively cover personnel and materials, and preserve war potential; it is an engineering guarantee to persist in urban combat and long-term support for anti-aggression wars until victory. [0003] Along with popularizing of family car, underground garages are mostly built in newly-built residences, ...

AI Technical Summary

Problems solved by technology

However, there are the following problems in the power supply of diesel generator sets: low energy efficiency, limited oil storage, short continuous operation time, and when the external power supply is destroyed in wartime, if the power supply of civil air defense projects only relies on a single power supply of diesel generators, it has a high risk of interruption. electricity risk

In addition, my country's dependence on foreign oil is high. Once a war breaks out, the supply of military and civilian oil will be very tight. It is very difficult to supply high-quality diesel in sufficient quantities to a large number of civil air defense projects. Reduced oil supply system reliability

The following problems exist in the power supply of UPS or EPS power battery packs: UPS or EPS power battery packs are expensive and have low storage capacity; EPS and UPS self-contained power supply equipment specially designed for wartime primary and secondary power loads are generally not installed , only wiring and installation positions are left. It takes a long time to install EPS and UPS self-contained power supply equipment for a large number of civil air defense projects in wartime, and it is prone to insufficient supply or long supply cycle.

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