An Evaluation Method for Electrochemical Energy Storage System for Guiding Bidding and Purchasing

An energy storage system and evaluation method technology, applied in data processing applications, complex mathematical operations, instruments, etc., can solve the problems of insufficient guidance and low discrimination in bidding work, and achieve accurate and efficient evaluation.

Active Publication Date: 2020-12-25
国网浙江浙电招标咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The evaluation method disclosed in this patent divides the energy storage system into five grades of "very good", "better", "general", "poor" and "very poor". The system will be divided into the same level, and the guidance for bidding work is insufficient

Method used

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  • An Evaluation Method for Electrochemical Energy Storage System for Guiding Bidding and Purchasing
  • An Evaluation Method for Electrochemical Energy Storage System for Guiding Bidding and Purchasing
  • An Evaluation Method for Electrochemical Energy Storage System for Guiding Bidding and Purchasing

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Experimental program
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Embodiment 1

[0100] Embodiment 1 The discretization method of conditional discretization is adopted, and the evaluation index scoring reference table is used as a reference to score each index parameter.

[0101] Step S01, obtaining evaluation index sets of a plurality of target systems.

[0102] It is known that the seven types of batteries that need to be evaluated this time are {lead-acid batteries, lithium-ion batteries, nickel-metal hydride batteries, zinc-air batteries, sodium-sulfur batteries, all-vanadium redox flow batteries, and zinc-nickel batteries} for peak shaving and valley filling. {Energy efficiency, energy density, power density, nominal voltage, number of cycles, self-discharge rate, cost per unit of electricity, environmental factors, safety, minimum operating temperature, depth of discharge} a total of 11 evaluation indicators for scoring, used for bidding When choosing a reference for energy storage system.

[0103] Step S02, based on the evaluation index set, obtain...

Embodiment 2

[0145] The two-level discretization used in the second embodiment is discretization. The scoring method for each index is to take the maximum value of the parameter of the i-th index as full marks and the minimum value as zero points, and the remaining parameters are distributed between zero points and full marks in proportion.

[0146] Step S01, obtaining evaluation index sets of a plurality of target systems.

[0147] It is known that the seven types of batteries that need to be evaluated this time are {lead-acid batteries, lithium-ion batteries, nickel-metal hydride batteries, zinc-air batteries, sodium-sulfur batteries, all-vanadium redox flow batteries, and zinc-nickel batteries} for peak shaving and valley filling. {Energy efficiency, energy density, power density, nominal voltage, number of cycles, self-discharge rate, cost per unit of electricity, environmental factors, safety, minimum operating temperature, depth of discharge} a total of 11 evaluation indicators for sc...

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Abstract

The invention discloses an electrochemical energy storage system evaluation method for guiding bidding and purchasing and belongs to the technical field of energy storage performance evaluation. The method comprises the steps of: S01, obtaining an evaluation index set of a plurality of target systems; S02, based on the evaluation index set, obtaining a data matrix of evaluation indexes corresponding to the target systems; S03, obtaining a known electrochemical energy storage system evaluation case which comprises an evaluation result of the electrochemical energy storage system; S04, determining a subjective weight value set corresponding to the evaluation index set; S05, determining an objective weight value set corresponding to the evaluation index set; S06, calculating the comprehensiveweight value of the evaluation indexes according to subjective weight values in the subjective weight value set and objective weight values in the objective weight value set; and S07, calculating thescores of the target systems according to the comprehensive weight value of the evaluation indexes. The electrochemical energy storage system is comprehensively evaluated based on the subjective andobjective factors, so that evaluation is accurate and efficient.

Description

technical field [0001] The invention belongs to the technical field of energy storage performance evaluation, and in particular relates to an evaluation method for an electrochemical energy storage system used to guide bidding and procurement. Background technique [0002] When bidding for electrochemical energy storage systems, different energy storage systems or the same type of energy storage systems of different brands have huge performance differences due to different technical emphasis, and the number of evaluation indicators that need to be referred to in bid evaluation is relatively large. Many choices are often made through experience and subjective judgment. However, for emerging energy storage technologies, subjective and empirical judgments will be conservative, and the golden period for the application of emerging technologies will be missed. [0003] Invention patent application CN201610907609.6 discloses a power system energy storage applicability evaluation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/10G06Q10/06G06Q50/06
CPCG06F17/10G06Q10/06393G06Q50/06Y02P90/82
Inventor 钱仲文李雪维魏泳王剑陈甜妹黄永祥杜亮潘镔陈晗杨岸涛徐天天
Owner 国网浙江浙电招标咨询有限公司
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