Method for dynamically adjusting dormancy process of battery management system

Abstract

The invention provides a method for dynamically adjusting the dormancy process of a battery management system, which comprises the following steps: 1) introducing an adjustment factor FA as an adjustment standard of the dormancy process of the battery management system; enabling the battery management system to monitor and analyze a battery state in a wake-up mode, and calculating the adjustment factor FA according to the battery state, wherein the weight of the battery in a normal state is a first weight GN, and the first weight GN causes the positive gain of the adjustment factor FA, the weight of the battery in the abnormal state is a second weight GE, and the second weight GE causes the negative gain of the adjustment factor FA; 2) setting a maximum value Tmax and a minimum value Tminof a dormancy period in the battery management system, and calculating a dormancy period THib of the current battery management system according to a previous dormancy period TBase of the battery management system; and 3) after the wake-up mode is finished, enabling the battery management system to enter a dormancy mode by taking the value of the THib as a sleep period, and storing the value of the current sleep period as the TBase value of the next calculation sleep period.

Description

【Technical field】 [0001] The invention belongs to the technical field of battery monitoring, and in particular relates to a method for dynamically adjusting the dormancy process of a battery management system. 【Background technique】 [0002] Electrochemical energy storage technology has the advantages of short response time, high energy density, flexibility and convenience, and low maintenance cost. At present, domestic lithium-ion battery energy storage accounts for 66% of the installed capacity of electrochemical energy storage, and is the most important form of electrochemical energy storage. Energy storage systems are generally used to cope with emergencies or alleviate peak power consumption. Under non-working conditions, most energy storage systems are in a dormant state to reduce system power consumption; especially lithium battery energy storage systems need to be equipped with corresponding battery management system to monitor the battery status. If the battery ma...

AI Technical Summary

Problems solved by technology

However, the existing sleep mode is timing sleep and wake-up, the function is relatively single, and the sleep process cannot be adjusted in time according to the state before sleep, and the balance between security and power consumption cannot be achieved.

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