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Download fileMulti-port energy router for DC grid clusters
conference contribution
posted on 2021-08-26, 09:52 authored by Linfeng Sun, Wei Jiang, Seiji Hashimoto, Zhengyu LinZhengyu LinDC micro-grid comes an increasingly popular solution for local energy integration and dispatch. Individual DC micro-grid can operate in both island and grid-tie mode. The past research mainly focused on the DC-AC grid-tie power management while DC-DC tie mode might dominate future smart power distribution networks. This paper proposed a multi-port energy router concept to multiplex DC power from multiple DC communities whose bus voltage is operated at very close levels. The proposed partial power energy router works as a Kirchhoff’s current law (KCL) “super node”. It includes a partial power topology which can direct the DC current flow between any two buses or to the local energy storage by only taking the bus voltage differences. To fit the modulation and control into industrial standard framework, also considering the flexibility of controlling the energy storage current, multidimension space vector modulation and modified instantaneous power theory are proposed to regulate the DC power flow. The power transfer efficiency of standard half-bridges partial power topology is verified experimentally. Multiple operation scenarios are investigated to prove the feasibility of the energy router through simulation and experiments.
Funding
Plug-and-play Low Voltage DC Microgrid for Cheap and Clean Energy
Engineering and Physical Sciences Research Council
Find out more...Yangzhou City and Yangzhou University Joint Fund (YZ2020169)
YZU Teaching Lab Innovation Fund (zzyq202013)
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)Source
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)Publisher
IEEEVersion
- AM (Accepted Manuscript)
Rights holder
© IEEEPublisher statement
© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Publication date
2021-08-06Copyright date
2021ISBN
9781728186412Publisher version
Language
- en