Shaping the Transient Performance of Droop-Controlled Grid Forming Converters for Frequency Regulation

Jiseong Kang, Kyeon Hur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This paper proposes an effective method to improve the transient performance of droop-controlled grid-forming (GFM) inverters for frequency regulation. The active power droop control is an industry-accepted method for primary frequency control and performs well with the large and slow synchronous machines with large inertia. Unsatisfactory transient performance has been observed, however, for the small and fast converter-based generators as the droop control is fundamentally based on a steady-state model. This paper thus presents a method to shape the desired transient response by augmenting the standard frequency command with an additional command through a fast frequency regulation responding to the change in the inverter's DC voltage. The method is practical as it exploits the measurements only, not requiring the modification of DC voltage control unlike the recently developed matching scheme. Case studies using PSCAD/EMTDC highlight that the proposed method significantly improves the transient performance while providing the desired load-sharing in steady-state.

Original languageEnglish
Title of host publicationProceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1777-1782
Number of pages6
ISBN (Electronic)9781728163444
DOIs
Publication statusPublished - 2021 May 24
Event12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 - Virtual, Singapore, Singapore
Duration: 2021 May 242021 May 27

Publication series

NameProceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

Conference

Conference12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Country/TerritorySingapore
CityVirtual, Singapore
Period21/5/2421/5/27

Bibliographical note

Publisher Copyright:
© 2021 IEEE.

All Science Journal Classification (ASJC) codes

  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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