基于超级电容的双向DC/DC变换器建模与控制  

Research on modeling and control of bidirectional DC/DC converter based on supercapacito

作　　者：刘维莎 石荣亮 周其锋 钟志贤[1] 陶敏 Liu Weisha;Shi Rongliang;Zhou Qifeng;Zhong Zhixian;Tao Min(Key Laboratory of Advanced Manufacturing and Automation Technology(Guilin University of Technology),Education Department of Guangxi Zhuang Autonomous Region,Guilin 541006,China)

机构地区：[1]广西高校先进制造与自动化技术重点实验室(桂林理工大学),桂林541006

出　　处：《电子测量技术》2024年第14期72-79,共8页Electronic Measurement Technology

基　　金：广西自然科学基金(2021GXNSFAA220038);广西壮族自治区研究生教育创新计划项目(YCSW2024372)资助。

摘　　要：为了有效利用电梯回馈的再生电能,降低系统能量损耗,本文围绕超级电容的能量存储特性,首先介绍基于超级电容的电梯能量存储系统结构及原理;其次建立双向DC/DC变换器的小信号模型,论述了基于传统PI控制器的双向DC/DC变换器双闭环控制结构及其参数设计过程;然后在分析蚁狮优化算法原理的基础上,提出基于ALO算法的PI参数设计方法;最后利用MATLAB仿真软件建立基于超级电容的电梯能量存储系统仿真模型,仿真结果表明在电梯运行状态下,超级电容能及时准确回收制动能量并将回收的能量回馈至直流母线,保证了直流母线电压稳定,降低了系统能耗,这充分验证了所述方法的有效性和优越性。In order to effectively utilize the regenerative energy returned by the elevator and reduce the energy loss of the system,this paper focuses on the energy storage characteristics of the ultracapacitor,Firstly,the structure and principle of elevator energy storage system based on supercapacitor are introduced;secondly,the small signal model of bidirectional DC/DC converter is established,and the double closed-loop control structure and parameter design process of bidirectional DC/DC converter based on traditional PI controller are discussed;then,on the basis of analyzing the principle of ant-lion optimization algorithm,a PI parameter design method based on ALO algorithm is proposed.Finally,the simulation model of elevator energy storage system based on ULtracapacitor is established by using MATLAB simulation software.The simulation results show that the ultracapacitor can timely and accurately recover the braking energy and return the recovered energy to the DC bus,ensuring the voltage stability of the DC bus and reducing the energy consumption of the system,which fully verifies the effectiveness and superiority of the method.

关 键 词：超级电容 双向DC-DC变换器 小信号模型 直流母线电压 参数设计 蚁狮优化算法 

分 类 号：TN830[电子电信—信息与通信工程]