Free Switching Control Strategy for Multi-Operation Modes of Multi-Port Energy Router in Distribution Area

Shumei Chi, Zhipeng Lv, Lan Liu and Yang Shan
Additional contact information
Shumei Chi: College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Zhipeng Lv: College of Electronics and Information Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Lan Liu: China Electric Power Research Institute Co., Ltd., Beijing 100192, China
Yang Shan: Zenergy Tech Co., Ltd., Nanjing 211500, China

Energies, 2021, vol. 14, issue 23, 1-24

Abstract: For the distribution area with a high penetration rate of new energy, the traditional power supply system has some problems, such as a single form of power supply and low utilization of new energy. Because the multi-port energy router can realize the interconnection and complementation of multiple energy forms, it has become the key piece of equipment in the hybrid AC/DC distribution area. Nevertheless, restricted by the existing control strategy, the performance of the energy router in complex operation mode switching and coordinated control still needs to be further improved. To address this issue, the free switching control strategy is proposed in this paper. Firstly, the topology and model of the multi-port energy router are designed and established. Secondly, the operation mode of the system is analyzed, and the control strategy of each port is designed. Then, a reference power calculation method suitable for multi-mode operation is derived. Based on this, the control strategy does not need to be changed when operation modes are switched. Furthermore, the extended state observer is introduced to track and compensate for the new energy disturbance, which can improve the power quality of the system. Finally, the simulation and experimental results show that the proposed control strategy of the multi-port energy router can realize flexible and controllable power transmission among various modules in the distribution area and the free switching of multi-operation modes without changing the control strategy.

Keywords: distribution area; multi-port energy router; multi-operation modes; power flow; virtual synchronous machine; free switching control strategy (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/23/7860/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/23/7860/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:23:p:7860-:d:686273

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().