Series and shunt DC electric springs

Ming Hao Wang, Kwan Tat Mok, Siew Chong Tan, Shu Yuen Ron Hui

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

19 Citations (Scopus)


Electric springs (ES) have been proposed as distributed devices for stabilizing the voltage and frequency of AC power systems. Similarly, its DC counterparts in the form of DC electric springs (DC-ES), which are connected in series with non-critical loads to form a smart load, can be applied for the voltage stabilization of DC grids. In this paper, configuration of series and shunt DC-ES and their respective operating modes are discussed. Comparisons are made for both types of ES on their functionalities of DC bus voltage regulation, load harmonics compensation, and fault-ride-through application. Their respective limitations in dealing with different voltage issues have been addressed. Experimental works of DC-ES applied to a 48 V DC micro-grid is conducted for verification. The results show a good agreement with the theoretical analysis, illustrating that the DC-ES can be an effective solution to provide simultaneous functions including DC micro-grid bus voltage regulation, harmonic compensation, and fault-ride-through.

Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages8
ISBN (Electronic)9781467371506
Publication statusPublished - 27 Oct 2015
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Montreal, Canada
Duration: 20 Sept 201524 Sept 2015

Publication series

Name2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015


Conference7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015


  • DC grids
  • distributed power systems
  • power electronics
  • smart grid
  • Smart load
  • stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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