An energy management system for a hybrid energy storage system

Abstract

The invention discloses an energy management system for a hybrid energy storage system. The energy management system is used for a fuel cell vehicle; including an air compressor, an air network pipe, a hydrogen-oxygen fuel cell, a water storage tank, a hybrid energy storage device and a pressure storage tank; the hybrid energy storage device includes a pressure storage tank; the air compressor is connected to the air network pipe; the air network pipe is connected to the pressure relief tank, the pressure storage tank, and the hydrogen-oxygen fuel cell; the water storage tank is connected to the hydrogen-oxygen fuel cell, and the water storage The tank is provided with a first heat dissipation pipeline and a second heat dissipation pipeline; the first heat dissipation pipeline is used to introduce the water in the water storage tank to the outer surface of the radiator of the cooling system of the air compressor; the second heat dissipation pipe The road is used to introduce the water in the water storage tank to the outer surface of the radiator in the heat dissipation system of the hydrogen-oxygen fuel cell; the pressure relief tank, the pressure storage tank and the air network pipe are connected by a three-way valve; the present invention can ensure that the air The compressor is in the best working condition while reducing the waste of energy.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to an energy management system for a hybrid energy storage system. Background technique [0002] With the continuous development of fuel cell technology, fuel cell vehicles have gradually begun to be used in practice. [0003] However, in the prior art, there is the following problem, the amount of electric energy generated is mainly controlled by controlling the flow of hydrogen. The air compressor must control the intake air with a large intake air volume. This is because when the speed of the air compressor is too high, if the exhaust volume and exhaust pressure of the air compressor are changed frequently and quickly, it is easy to cause the air compressor to malfunction. Unstable operation, resulting in many failures. If the air compressor is directly controlled to operate at a higher pressure and a larger air displacement, energy will be wasted. [0004] How to ...

AI Technical Summary

Problems solved by technology

The air compressor must control the intake air with a large intake air volume. This is because when the speed of the air compressor is too high, if the exhaust volume and exhaust pressure of the air compressor are changed frequently and quickly, it is easy to cause the air compressor to malfunction. Unstable operation, resulting in many failures

If the air compressor is directly controlled to operate at a higher pressure and a larger air displacement, it will result in a waste of energy

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