The Interactive Coupling Between Power Control Loops in Grid-Forming Inverter Based on Spring-Damper Oscillator Model

  • Jiacheng Zeng
  • , Wei Wang
  • , Dongmei Yang
  • , Yue Geng
  • , Xiaojun Deng
  • , Shaoze Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In grid-forming (GFM) control, the core of simulating synchronous machines lies in the power loop. However, there is limited research analyzing the interactive coupling between the dynamics of the active power synchronization control loop (APSL) and the reactive power voltage control loop (RPVL) in GFM control from a physical perspective. This paper establishes a third-order nonlinear model of the GFM inverter and compares it with the physical model of a two-degree-of-freedom spring-damper oscillator system. This approach derives the fundamental mapping relationship between the small-signal model of the GFM converter and the physical model. The correctness of the analysis is verified through simulations in MATLAB and PLECS. Finally, based on the constructed two-degree-of-freedom spring-damper oscillator model, the interactive coupling phenomenon between the dynamics of the active and reactive output loops is revealed in a more intuitive manner.

Original languageEnglish
Title of host publication2024 IEEE PES 16th Asia-Pacific Power and Energy Engineering Conference
Subtitle of host publicationInnovative Technologies Drive Low-Carbon, Sustainable, and Flexible Energy Systems, APPEEC 2024 - Proceedings
PublisherIEEE Computer Society
ISBN (Electronic)9798350386127
DOIs
StatePublished - 2024
Externally publishedYes
Event16th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2024 - Nanjing, China
Duration: 25 Oct 202427 Oct 2024

Publication series

NameAsia-Pacific Power and Energy Engineering Conference, APPEEC
ISSN (Print)2157-4839
ISSN (Electronic)2157-4847

Conference

Conference16th IEEE PES Asia-Pacific Power and Energy Engineering Conference, APPEEC 2024
Country/TerritoryChina
CityNanjing
Period25/10/2427/10/24

Keywords

  • APSL
  • grid-forming
  • RPVL
  • spring-damper oscillator model

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