Research On The Super-capacitor Distributed Management System

With the gradual depletion of global stone energy and increasingly serious environmental pollution,new energy sources have received extensive attention as a substitute for fossil energy.Energy storage equipment is an important part of new energy applications,such as batteries,super-capacitors and flywheel energy storage have been applied in many fields of new energy.Super-capacitors have the advantages of long service life and high power density,and have been widely used in the field of high power density energy storage.This paper briefly summarizes the research status of the energy storage management system at home and abroad and the classification of the equalization technology.And introduces the working characteristics of the super-capacitor.The problem of the inconsistent equalization speed of the Buck-Boost equalization circuit in the centralized active equalization method is proposed.An improved Buck-Boost centralized equalization circuit and its control strategy are proved by simulation and experimental verification.The equalization circuit has fast equalization speed,good equalization speed consistency and high equalization efficiency,which greatly broadens the Buck-Boost equalization circuit.The scope of application in practice.Based on the characteristics of super-capacitors and the requirements of the management system,the paper designs the distributed super-capacitor management system with reference to the traditional lithium battery management system.In the design,the whole system is divided into four subsystems,and each subsystem is connected through the CAN communication bus.The system data is finally communicated with the host computer through the central management unit,and all data parameters can be displayed and summarized in the GUI interface.The paper introduces the software and hardware design of distributed super-capacitor management system and each subsystem in detail..Finally,the paper thoroughly tests the distributed super-capacitor management system and verifies the correctness of the software and hardware design of each subsystem.Through system debugging and experimental verification,the functions of each part of the super-capacitor management system can work normally,the display interface is friendly,and the energy management function of multiple sets of super-capacitors can be realized.