Battery pack equalization control method and system based on improved firefly optimization

The invention relates to the technical field of battery equalization, and discloses a battery pack equalization control method and system based on improved firefly optimization, and the method comprises the steps: constructing a multi-level equalization circuit topology for series battery packs, and...

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Hauptverfasser:	LIN ZHAOHONG, FANG DE, GU JINGYU, LING QING, LIU JIANMING, LI LING, XU DAYI, CHEN XIAOLONG, XIE GUOJIAN, DENG KAIWEN, LONG XIONGFENG, LIU JIAXIU, ZHOU YANWEI, CAI ZHENMAN, ZHANG CHI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BASIC ELECTRIC ELEMENTS CALCULATING CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS COMPUTING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER COUNTING ELECTRICITY GENERATION PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of battery equalization, and discloses a battery pack equalization control method and system based on improved firefly optimization, and the method comprises the steps: constructing a multi-level equalization circuit topology for series battery packs, and carrying out the equalization control of each level of battery pack through a Buck-boost circuit, three-level equalization control in the series battery pack is realized, the complexity and the equalization cost of the equalization circuit are reduced, meanwhile, the PWM duty ratio of the Buck-boost circuit is optimized based on a firefly algorithm, the SOC state of the series battery pack is monitored in real time, the equalization current is accurately controlled, and the system reliability is improved. The problem of inconsistent charge states of the series lithium ion battery pack is avoided, and the charge equalization speed is also improved. 本发明涉及电池均衡技术领域，公开了一种基于改进萤火虫优化的电池组均衡控制方法及系统，本方法通过将串联电池组进行构建多层级立均衡电路拓扑