基于软开关DC/DC变换器的混合能源系统设计

Design of Hybrid Energy Storage System Based on Soft-switching DC/DC Converters

设计了一种基于软开关双向DC/DC变换器的锂离子电池超级电容混合能源系统(BSHESS)。该系统具备软开关运行能力,能够降低混合能源系统(HESS)的内部损耗。根据HESS的运行状态,设计了内环的电流控制策略和外环的能量管理策略。基于该系统结构,完成了软开关双向DC/DC变换器样机、锂离子电池组、超级电容组的设计和制作,设计并实现了整个HESS的实验平台,并进行了多项实验验证。

A battery super-capacitor hybrid energy storage system (BSHESS)based on soft-switching bidirectional DC/ DC converters is designed.This system works under soft-switching conditions to reduce the inner loss of the hybrid energy storage system(HESS).Aecording to operating conditions of this system,the inner current control strategy and the outer energy management strategy are designed.Based on the structure of this system,design and build the prototype of soft-switching bidirectional DC/DC converter,the lithium-ion battery pack,and the super-capacitor bank. Though this experimental platform of HESS,several verification experiments are made.