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Battery performance evaluation method based on analytical hierarchy process

An AHP, battery performance technology, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as lack of convincing, expanding influencing factors, and inability to give multiple battery evaluation results completely and accurately , to achieve the effect of less data and simplified analysis

Inactive Publication Date: 2015-09-09
北京亿利智慧能源科技有限公司
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Problems solved by technology

However, this kind of method has the disadvantage of artificially expanding certain influencing factors, and cannot give completely accurate evaluation results for multiple batteries, which is not convincing.

Method used

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  • Battery performance evaluation method based on analytical hierarchy process
  • Battery performance evaluation method based on analytical hierarchy process
  • Battery performance evaluation method based on analytical hierarchy process

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Embodiment Construction

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0020] Through the relevant characteristic test experiments on three lithium-ion power batteries Z21, Z15 and Z10 with different aging degrees, the characteristic parameters of the batteries are analyzed according to the obtained experimental data. Combined with the analytic hierarchy process, an evaluation model is established for the comprehensive performance of lithium-ion power batteries, and the battery performance evaluation results are obtained through calculation and analysis, so as to compare the advantages and disadvantages of the analytic hierarchy process.

[0021] 1 Establish a comprehensive performance evaluation model for lithium-ion batteries

[0022] When applying the hierarchical method to analyze ...

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Abstract

The invention provides a battery performance evaluation method based on an analytical hierarchy process. The method comprises the following steps: constructing a hierarchical structure model; constructing a judgment matrix; checking consistency of the judgment matrix, wherein random consistency ratio of a consistency index is hierarchically and singly ranked, i.e., calculating a maximum characteristic and its characteristic vector for the judgment matrix; hierarchically and globally ranking, i.e., calculating a relative importance or a relative superiority-inferiority of the lowest layer of factors with respect to the highest layer (the global object); making decisions, ranking candidate schemes by calculating weighed rank value of the relative superiority-inferiority of each scheme of the lowest layer with respect to the highest global object. By constructing a hierarchical model and then combining the mathematic process with human experience as well as subjective judgments, the technical scheme of the battery performance evaluation method can effectively analyzes non-sequential relationships among hierarchies of the object criterion system, effectively and comprehensively estimate and compare the judgments of the decision maker.

Description

technical field [0001] The invention relates to a comprehensive performance evaluation method of a lithium-ion power battery, in particular to a battery performance evaluation method based on the analytic hierarchy process. Background technique [0002] With the vigorous development of electric vehicles and electric energy storage, power batteries are also widely valued as the main power source. The performance of power batteries has a major impact on the safety, efficiency and economy of electric vehicle operations. There are many performance parameters of power batteries, and different types of power batteries are different in terms of uniformity, safety and cost. If the power battery is used without reliable screening, the reliability of the battery will be greatly reduced, and even the performance of the electric vehicle will be damaged. How to select a suitable power battery for electric vehicles according to different working conditions and actual needs of different ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
Inventor 孙丙香姜久春张维戈吴健
Owner 北京亿利智慧能源科技有限公司
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