Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors

Huadong Sun; Shuyan Wang; Shiyun Xu; Jingtian Bi; Yiming Wang

doi:10.17775/CSEEJPES.2022.04450

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Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors

Regular Papers | 更新时间：2026-10-15

- Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors
- Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors
- 中国电机工程学会电力与能源系统学报(英文) 2024年10卷第5期页码：2055-2064
- 作者机构：
  
  State Key Laboratory of Power Grid Safety and Energy Conservation, China Electric Power Research Institute,Beijing,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2022.04450
  中图分类号：
- 纸质出版：2024-09-01
- 稿件说明：
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Huadong Sun, Shuyan Wang, Shiyun Xu, 等. Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(5):2055-2064.

Huadong Sun, Shuyan Wang, Shiyun Xu, et al. Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors[J]. CSEE Journal of Power and Energy Systems, 2024, 10(5): 2055-2064.
Huadong Sun, Shuyan Wang, Shiyun Xu, 等. Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors[J]. 中国电机工程学会电力与能源系统学报(英文), 2024,10(5):2055-2064. DOI： 10.17775/CSEEJPES.2022.04450.

Huadong Sun, Shuyan Wang, Shiyun Xu, et al. Synchronization Stability Analysis of PLL-Based Grid-Connected VSC System by Voltage Space Vectors[J]. CSEE Journal of Power and Energy Systems, 2024, 10(5): 2055-2064. DOI： 10.17775/CSEEJPES.2022.04450.

摘要

Abstract

This paper focuses on synchronization stability analysis of the power system

in which power electronics are synchronized by the phase-locked loop (PLL). It provides new insight into the synchronization stability of power electronics from the voltage perspective. The synchronization stability analysis based on space vector is carried out by establishing a simplified model of the grid-connected voltage source converter (VSC) system. Without complex mathematical calculation

the existence criterion of equilibrium points and the criterion of transient instability dominated by the unstable equilibrium point (UEP) are derived

respectively. With the proposed method

synchronization stability can be determined by the voltage space vectors

which are more observable in potential engineering applications. At the end of this study

the steps of the synchronization stability determination by voltage space vectors are summarized

and the effectiveness and applicability of the proposed method are demonstrated by numerical simulations performed on the PSCAD/EMTDC platform.

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