Research on the control strategy of multi-port DC/DC energy router for the energy Internet

Wenzhong MA; Guancheng LI; Kuitong ZHANG; Shujuan YANG; Mengdi WEI; Yuzhen TANG; Yucheng SONG; Lei DONG

doi:10.11959/j.issn.2096-3750.2020.00197

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Research on the control strategy of multi-port DC/DC energy router for the energy Internet

Topic:IoT+Energy | 更新时间：2024-06-05

- Research on the control strategy of multi-port DC/DC energy router for the energy Internet
- Chinese Journal on Internet of Things Vol. 4, Issue 4, Pages: 32-42(2020)
- 作者机构：
  
  1. 中国石油大学（华东）新能源学院，山东青岛 266580
  2. 兖矿集团有限公司，山东邹城 273500
  3. 山东交通职业学院，山东潍坊 261100
  4. 中国石油大学（华东）理学院，山东青岛 266580
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-3750.2020.00197
  CLC： TM402
- Published：30 December 2020，
  
  Published Online：2020-12，
- 稿件说明：
移动端阅览
WENZHONG MA, GUANCHENG LI, KUITONG ZHANG, et al. Research on the control strategy of multi-port DC/DC energy router for the energy Internet. [J]. Chinese journal on internet of things, 2020, 4(4): 32-42.
DOI：

WENZHONG MA, GUANCHENG LI, KUITONG ZHANG, et al. Research on the control strategy of multi-port DC/DC energy router for the energy Internet. [J]. Chinese journal on internet of things, 2020, 4(4): 32-42. DOI： 10.11959/j.issn.2096-3750.2020.00197.

摘要

分析了目前多端口直流（DC

direct current）转DC（DC/DC）能源路由器的特点和缺陷，优化设计了一种面向能源互联网的多端口DC/DC能源路由器。通过对不同工况下运行电压的需求分析，对多端口DC/DC能源路由器进行了子模块全桥比例设计，在此基础上提出了一种实现无闭锁穿越直流故障的交直流（AC/DC

alternating current/DC）解耦的控制策略。该多端口DC/DC能源路由器用于实现多个电压等级不同的直流电网的相互连接，既保留了传统直流自耦变压器技术低成本、低损耗的优势，又有效改善了其无法应对直流故障的缺点。最后，在MATLAB/Simulink环境进行了仿真测试，验证了该技术正常运行时的稳定性、抑制直流故障的可行性和控制策略的有效性。

Abstract

The characteristics and shortcomings of the current multi-port direct current (DC) to DC (DC/DC) energy router were analyzed.A multi-port DC/DC energy router for the energy Internet was optimized and designed.Through the analysis of the operating voltage requirements under different working conditions

the full-bridge proportional design of the sub-module was proposed.On this basis

an alternating current (AC) to DC (AC/DC) decoupling control strategy to realize riding through the DC fault without de-blocking any devices was proposed.The multi-port DC/DC energy router was used to realize the interconnection of multiple DC power grids with different voltage levels.It not only retained the advantages of low cost and low loss of the traditional DC autotransformer

but also effectively improved the shortcomings that the DC autotransformer cannot ride through the DC fault.Finally

the simulation test was carried out in the MATLAB/Simulink environment to verify the stability of the technology in the normal operation

the feasibility of suppressing the DC fault and the effectiveness of the control strategy.

关键词

能源互联网能源路由器直流自耦变压器直流故障

Keywords

energy Internetenergy routerDC autotransformerDC fault

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