Method, device and equipment for evaluating running state of energy storage unit in electrochemical energy storage power station and storage medium

• Main Authors: WANG ZANBIN, JI SHIYU, LUO YUANLIN
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention provides a method, a device and equipment for evaluating the running state of an energy storage unit in an electrochemical energy storage power station and a storage medium, an evaluation index system is established according to the running characteristics of the energy storage unit, and the evaluation index system comprises the temperature range of a single battery, the voltage range, the available SOH of the battery and the charge-discharge cycle efficiency of the battery; calculating an information entropy value of each evaluation index of the energy storage unit; calculating the weight of each index according to an entropy weight method; calculating a Spearman coefficient of each index to obtain a correlation condition among the indexes so as to obtain a contribution degree of each index; correcting the weight of each index according to a Spearman coefficient; and evaluating the operation state of each energy storage unit according to each index and the weight value. According to the method,