A superconducting magnetic energy storage-emulator/battery supported dynamic voltage restorer

Gee, Anthony M. and Robinson, Francis and Yuan, Weijia (2017) A superconducting magnetic energy storage-emulator/battery supported dynamic voltage restorer. IEEE Transactions on Energy Conversion, 32 (1). pp. 55-64. ISSN 0885-8969 (https://doi.org/10.1109/TEC.2016.2609403)

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Abstract

This study examines the use of superconducting magnetic and battery hybrid energy storage to compensate grid voltage fluctuations. The superconducting magnetic energy storage system (SMES) has been emulated by a high-current inductor to investigate a system employing both SMES and battery energy storage experimentally. The design of the laboratory prototype is described in detail, which consists of a series-connected three phase voltage source inverter used to regulate ac voltage, and two bidirectional dc/dc converters used to control energy storage system charge and discharge. "DC bus level signaling" and "voltage droop control" have been used to automatically control power from the magnetic energy storage system during short-duration, high-power voltage sags, while the battery is used to provide power during longer term, low-power undervoltages. Energy storage system hybridization is shown to be advantageous by reducing battery peak power demand compared with a battery-only system, and by improving long-term voltage support capability compared with an SMES-only system. Consequently, the SMES/battery hybrid dynamic voltage restorer can support both short-term high-power voltage sags and long-term undervoltages with significantly reduced superconducting material cost compared with an SMES-based system.

ORCID iDs

Yuan, Weijia ORCID: https://orcid.org/0000-0002-7953-4704

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  Item type:	Article
  ID code:	69202
  Dates:	Date Event 31 March 2017 Published 13 September 2016 Published Online 8 September 2016 Accepted
  Notes:	© 2017 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.
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering
  Depositing user:	Pure Administrator
  Date deposited:	02 Aug 2019 11:48
  Last modified:	02 Dec 2024 01:21
  Related URLs:	Scopus publication https://researchportal.bath.ac.uk/en/pub...
  URI:	https://strathprints.strath.ac.uk/id/eprint/69202