Energy storage battery soc method

What is SoC estimation of a battery?

The SOC estimation of the battery is the most significant functions of batteries' management system, and it is a quantitative evaluation of electric vehicle mileage. Due to complex battery dynamics and environmental conditions, the existing data-driven battery status estimation technology is not able to accurately estimate battery status.

What is a lithium-ion battery state of charge (SOC)?

The accurate estimation of lithium-ion battery state of charge (SOC) is the key to ensuring the safe operation of energy storage power plants, which can prevent overcharging or over-discharging of batteries, thus extending the overall service life of energy storage power plants.

Does battery SoC estimation rely on physics-based model?

However, it can be seen from Table 1, that these reviews on battery SOC estimation in past years relied predominantly on either empirical model or DDM and few reviews focused on physics-based SOC estimation and its evaluation criteria.

Do physics-based SoC algorithms improve accuracy of battery SoC estimation?

Physical information is essential to improve accuracy of battery SOC estimation and this paper comprehensively surveys on recent advances and future perspectives of physics-based SOC algorithms for advanced BMS. 1. Introduction

Why do we need battery models for SOC estimation?

The establishment of battery models is essential for advanced BMS to estimate SOC accurately. And the EMs providing physical mechanism have become increasingly competitive alternative to empirical models and it is also the key basis for the realization of physical SOC estimation.

What is state of charge (SOC) in battery management system (BMS)?

The reliable prediction of state of charge (SOC) is one of the vital functions of advanced battery management system (BMS), which has great significance towards safe operation of electric vehicles.