MATHEMATICAL MODELING, PERFORMANCE ANALYSIS AND CONTROL OF BATTERY EQUALIZATION SYSTEMS: REVIEW AND RECENT DEVELOPMENTS

To reduce the charge imbalance in a battery system, a number of circuit modules are developed and connected to the battery cells to form the battery equalization system. The operation of the battery equalization system is usually controlled by the battery management system. For the design of equalizers, two types of methods have been proposed: passive and active balancing. Of all the structures of battery equalization systems developed, the simplest but widely used one is the series‐connected equalization structure. This chapter discusses the recent research contribution and development about the analysis and control of battery equalization systems. It describes the results on mathematical and computer modeling of battery equalization systems. The chapter reviews the problems of system performance evaluation and control strategies. Once the hardware realization of a new battery equalization topology is developed, experimentation with a prototype is usually carried out to test and demonstrate the performance of the design.