基于等效时间的混合储能系统高功率密度优化配置  

High power density optimal configuration for hybrid energy storage system based on equivalent time

作　　者：程龙 张方华[1] 谢敏[1] 王愈[1] 邹花蕾 CHENG Long;ZHANG Fanghua;XlE Min;WANG Yu;ZOU Hualei(Center for More-Electric-Aircraft Power System,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China)

机构地区：[1]南京航空航天大学多电飞机电气系统工信部重点实验室,南京211106

出　　处：《航空学报》2018年第10期197-207,共11页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(51777094;51607087)~~

摘　　要：越来越多的电力电子装置应用到多电飞机(MEA)电力系统中,导致MEA用电负荷功率呈现脉动特性,采用混合储能系统(HESS)平抑负荷功率脉动。为减少HESS重量,提出了一种高功率密度的优化配置方法。为建立负荷功率与储能介质之间的关系,提出了等效时间(ET)的概念,比较两者的ET常数作为储能系统类型选取的依据。进一步提出空间矢量法,采用能量型储能介质矢量和功率型储能介质矢量合成负荷功率,确定最优单体和截止频率,实现了HESS高功率密度配置。同时,从能量约束和功率约束两个方面进行HESS的容量的计算。最后,通过算例配置和仿真分析验证了本文所提方法的可行性和正确性。With the increasing applications of power electric devices in More Electric Aircraft（MEA）power system,the electric load power in MEA displays fluctuating characteristics.The Hybrid Energy Storage System（HESS）is selected to smooth load power fluctuation.To reduce the weight of HESS,a method of optimal configuration of high power density HESS is proposed.Firstly,to build the relationship between the load power and storage cells,a concept of Equivalent Time（ET）is put forward and is used as the basis to select the energy storage system type by comparing the equivalent times.Further,the space vector is proposed：to determine the optimal cell and the cutoff frequency,the load energy is synthesized by the energy storage medium vector and the power storage medium vector,realizing the high-power density configuration of HESS.Meanwhile,the HESS capacity is calculated from the energy constraints and power constraints.Finally,the feasibility and correctness of the proposed method in this paper has been verified through the example configuration and simulation analysis.

关 键 词：多电飞机 混合储能系统 高功率密度 等效时间 空间矢量法 

分 类 号：V19[航空宇航科学与技术—人机与环境工程] TM61[电气工程—电力系统及自动化]