A Generalized Controller for Electric-Spring-Based Smart Load with Both Active and Reactive Power Compensation

Tong Chen, Heng Liu, Chi-Kwan Lee*, S. Y. Ron Hui

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

With the electric spring (ES) being practically evaluated by utility companies in power grids, there is a need to explore its practical implementation aspects of general applications. In this paper, we propose three interior angle control principles for the ES. Systematic analysis and comparative study show that these three control principles lead to different smart load (SL) performance. The operating characteristic curves and distinctive features/advantages of the SL using these three control methods are analyzed and explained. A generalized controller structure suitable for the implementations of all these three angle control schemes is presented. It is practically shown that the same controller structure can be programmed to implement these three angle control strategies. This outcome is the first step to realize a programmable ES-based SL for providing multiple functions. © 2019 IEEE.
Original languageEnglish
Pages (from-to)1454-1465
JournalIEEE Journal of Emerging and Selected Topics in Power Electronics
Volume8
Issue number2
Online published11 Apr 2019
DOIs
Publication statusPublished - Jun 2020
Externally publishedYes

Funding

This work was supported by the Hong Kong Research Grant Council through the Theme-Based Research Project under Grant T23-701/14-R/N.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Research Keywords

  • Electric spring (ES)
  • interior angle control
  • power smoothing
  • renewable energy sources
  • smart grids

RGC Funding Information

  • RGC-funded

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