Method for optimizing comprehensive efficiency of fuel cell electric-electric hybrid power supply system

A fuel cell and hybrid power supply technology, applied in battery/battery traction, battery/fuel cell control devices, electric vehicles, etc., can solve the problem of increased system calculation, impact of energy utilization, and reduction of fuel energy conversion efficiency, etc. problem, achieve the effect of improving economy and meeting load power demand

Active Publication Date: 2020-02-28
FUZHOU UNIV
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  • Abstract
  • Description
  • Claims
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Benefits of technology

This new technology helps improve both the performance (power) and cost effectiveness of batteries used for vehicles by optimally distributing energy across multiple components or groups within them while also taking into account their specific needs during operation.

Problems solved by technology

The technical problem addressed in this patents relates to improving efficient use of both types of electrical propulsion sources (fuel cells) when designing a car's overall system without compromising their performance capabilities. Specifically, there needs to consider how efficiently they work together under varying conditions such as driving over long distances or accelerating quickly from standstill situations.

Method used

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  • Method for optimizing comprehensive efficiency of fuel cell electric-electric hybrid power supply system
  • Method for optimizing comprehensive efficiency of fuel cell electric-electric hybrid power supply system
  • Method for optimizing comprehensive efficiency of fuel cell electric-electric hybrid power supply system

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0040] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinati

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Abstract

The invention relates to a method for optimizing the comprehensive efficiency of a fuel cell electric-electric hybrid power supply system. The power supply system uses a fuel cell and a storage battery as power supplies and is connected to a load motor through a direct current-alternating current inverter. The storage battery power supply is composed of a plurality of storage battery cells, and all the storage battery cells are connected through controllable switches. A hybrid power supply is used for obtaining a function relationship between the fuel cell output power conversion efficiency and the fuel cell voltage and power by measuring data of current, voltage, actual hydrogen consumption flow and the like of a particular operating point of the fuel cell, is used for calculating the minimum equivalent output power consumption of the hybrid power supply system and the optimal power distribution of the fuel cell power supply and the storage battery power supply in real time in combination with the efficiency and load working conditions of the storage battery and the fuel cell at the same time, and is further used for calculating the number of series-parallel cells of the storage battery power supply in real time through optimal power distribution, the internal controllable switches are switched, an internal connection structure of the storage battery is changed, and the real-time comprehensive efficiency of the fuel cell and the storage battery is maximized.

Description

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Claims

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Application Information

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Owner FUZHOU UNIV
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