Skip to main navigation Skip to search Skip to main content

Large-signal stabilization of three-phase VSR with constant power load

  • Bo Liu
  • , Hongqi Ben*
  • , Xiaobing Zhang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

As an important interface converter, the three-phase voltage-source rectifier (VSR) connects the grid to DC-input converters. The constant power load (CPL) characteristic of the converter-load often causes large-signal stability problems. In order to solve this problem, the stability boundary of the VSR with CPL is analyzed based on the mixed potential theory, and the stability condition under large-signal disturbance is obtained; thus, the jump range of the load power can be estimated. To improve the stability of the system, a voltage loop control scheme based on ADRC is proposed. A theoretical analysis based on the mixed potential theory shows the proposed scheme expands the power jump range of the VSR with CPL effectively, and improves its disturbance rejection performance. Finally, experimental results prove the effectiveness of the proposed control scheme.

Original languageEnglish
Article number1706
JournalEnergies
Volume11
Issue number7
DOIs
StatePublished - 2018
Externally publishedYes

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

Keywords

  • Active disturbance rejection control (ADRC)
  • Constant power load (CPL)
  • Large-signal stability
  • Mixed potential theory
  • Power jump range
  • Voltage source rectifier (VSR)

Fingerprint

Dive into the research topics of 'Large-signal stabilization of three-phase VSR with constant power load'. Together they form a unique fingerprint.

Cite this