电气工程学报 ›› 2020, Vol. 15 ›› Issue (2): 41-46.doi: 10.11985/2020.02.006

• • 上一篇    下一篇

扫码分享

直流电能路由器端口能量综合控制策略研究*

杨新华1,2(),曹磊1,2(),张晓英1,2   

  1. 1.兰州理工大学电气工程与信息工程学院 兰州 730050;
    2.甘肃省工业过程先进控制重点实验室 兰州 730050
  • 收稿日期:2020-03-02 出版日期:2020-06-25 发布日期:2020-07-31
  • 通讯作者: 曹磊 E-mail:yangxhm@163.com;986220050@qq.com
  • 作者简介:杨新华,男,1967年生,教授,硕士研究生导师。主要研究方向为电力电子与特种电源。E-mail:yangxhm@163.com
  • 基金资助:
    * 国家自然科学基金资助项目(51867015)

Synthetical Control Technology of DC Electric Energy Router Based on Port Energy Relationship

YANG Xinhua1,2(),CAO Lei1,2(),ZHANG Xiaoying1,2   

  1. 1. College of Electrical Engineering and Information Engineering, Lanzhou University of Technology, Lanzhou 730050 China;
    2. Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou 730050 China
  • Received:2020-03-02 Online:2020-06-25 Published:2020-07-31
  • Contact: CAO Lei E-mail:yangxhm@163.com;986220050@qq.com

摘要:

针对直流配电网的电能路由器控制问题,通过端口能量综合控制方法提高内部直流母线响应速度,增强直流电能路由器稳态性能。基于一种双有源变换单元的四端口直流电能路由器,分析端口能量流动情况,建立针对端口的直流电能路由器的能量模型,依据端口能量关系,设计综合控制器,对各级单元之间能量进行综合控制,分析系统中无源器件的参数差异对综合控制的影响,设计直流电能路由器并网运行综合控制策略,提高直流母线电压稳定性。最后,在Matlab/Simulink平台对控制策略进行仿真验证,结果验证了综合控制策略的有效性,同时仿真结果表明提出的控制策略有利于减小低压母线电容值。

关键词: 直流电能路由器, 端口能量, 能量模型, 端口能量控制

Abstract:

Aiming at the control problem of the energy router of the DC power distribution network, the response speed of the internal DC bus is improved through the integrated control method of the port energy, so as to improve the transient performance of the DC power router. Based on a four-port DC power router with dual active bridge conversion units, the energy flow of the ports is analyzed, the port energy model of the power router is established, and an integrated controller is designed based on the port energy relationship to comprehensively control the energy between units at all levels, the influence of the parameter differences of the passive components in the system on the comprehensive control is analyzed, a comprehensive control strategy is designed for the grid-connected operation of the DC power router, and the stability of the DC bus voltage is improved. Finally, the control strategy is simulated based on Matlab/Simulink, and the simulation results verify the effectiveness of the integrated control strategy. At the same time, the simulation results show that the control strategy proposed is conducive to reduce the capacitance value of low-voltage bus.

Key words: DC electric energy router, port energy, energy model, port energy control

中图分类号: