Suppression Strategy of Background Harmonic Voltage Based on Cooperative Control in Weak Grid

Xiuhui Chai; Wenqing Nie; Chunjiang Zhang; Xiaojun Zhao; Songlin Zeng

doi:10.17775/CSEEJPES.2021.06020

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Suppression Strategy of Background Harmonic Voltage Based on Cooperative Control in Weak Grid

Regular Papers | 更新时间：2026-10-16

- Suppression Strategy of Background Harmonic Voltage Based on Cooperative Control in Weak Grid
- CSEE Journal of Power and Energy Systems Vol. 11, Issue 5, Pages: 2230-2240(2025)
- 作者机构：
  
  Yanshan University,Hebei,Qinhuangdao,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2021.06020
  CLC：
- Published：01 September 2025
- 稿件说明：
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Xiuhui Chai, Wenqing Nie, Chunjiang Zhang, et al. Suppression Strategy of Background Harmonic Voltage Based on Cooperative Control in Weak Grid[J]. CSEE Journal of Power and Energy Systems, 2025, 11(5): 2230-2240.
DOI：

Xiuhui Chai, Wenqing Nie, Chunjiang Zhang, et al. Suppression Strategy of Background Harmonic Voltage Based on Cooperative Control in Weak Grid[J]. CSEE Journal of Power and Energy Systems, 2025, 11(5): 2230-2240. DOI： 10.17775/CSEEJPES.2021.06020.

摘要

Abstract

Distributed generation (DG) systems with renewable energy are often connected to weak grids. However

there may be large background harmonics in weak grids

which can easily cause power quality issues at the point of common coupling (PCC). For this reason

DG-grid interfacing inverters are expected to have the ability to suppress harmonics while achieving power transmission with the grid. To this end

a collaborative control method with feedforward multiple second-order generalized integrator (FMSOGI) harmonic extraction and harmonic weighting control (HWC) are proposed in this paper to improve voltage quality at PCC. Compared with traditional control methods

the proposed collaborative control is simpler and has better harmonic suppression ability due to direct suppression. On the basis of the proposed collaborative control

system stability is analyzed for DG-grid interfacing inverters to set proper parameters. Finally

simulation and experimental results from Matlab and HIL StarSim

respectively

are presented to verify effectiveness of the proposed control method.

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