Influence of Large-Scale Photovoltaic System Integration on Damping Characteristics of Interconnected Grid and Damping Control

doi:10.7652/xjtuxb201502017

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Influence of Large-Scale Photovoltaic System Integration on Damping Characteristics of Interconnected Grid and Damping Control

更新时间：2025-07-09

- Influence of Large-Scale Photovoltaic System Integration on Damping Characteristics of Interconnected Grid and Damping Control
- Vol. 49, Issue 2, Pages: 99-105(2015)
- 作者机构：
  
  1. 武汉大学电气工程学院,武汉,430072
  2. 西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201502017
  CLC： TM71
- Online First：10 February 2015，
  
  Published：2015
- 稿件说明：
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Influence of Large-Scale Photovoltaic System Integration on Damping Characteristics of Interconnected Grid and Damping Control[J]. 2015, 49(2): 99-105.
DOI：

Influence of Large-Scale Photovoltaic System Integration on Damping Characteristics of Interconnected Grid and Damping Control[J]. 2015, 49(2): 99-105. DOI： 10.7652/xjtuxb201502017.

摘要

针对未来大规模光伏发电系统并网对互联电力系统安全稳定性可能造成的影响

从系统阻尼特性角度展开详细研究。首先建立了适用于稳定分析的光伏发电系统的动态模型

然后搭建了含光伏发电系统的IEEE16机68节点测试系统

采用特征值分析法和模态分析法

研究了光伏发电的不同接入位置以及不同渗透率对互联电力系统阻尼特性造成的影响。结果表明:光伏发电系统不直接参与系统机电振荡

而主要通过对系统潮流的影响改变系统阻尼

并且由于阻尼控制环节的缺失可能对系统阻尼产生一定的负面影响; 文中提出的光伏发电系统的阻尼控制策略可有效地抑制该负面影响

进一步提升了互联电力系统对光伏并网的接纳能力。

Abstract

The future large-scale photovoltaic integration into the grid would affect security and stability of interconnected power systems. Beginning with research on the system damping characteristics

a dynamic model of photovoltaic power system for stability analysis is established

and then the IEEE68 bus test system with PV is constructed. The eigenvalue analysis and modal analysis are adopted to investigate the influence on the damping characteristics of different access location and different penetrating of PV system. The results show that the photovoltaic power generation system is not directly involved in the electro-mechanical oscillations

but changes the system damping mainly by the impact on power flow

and exerts certain negative effects on the system damping for lack of damping control links. The proposed PV system damping control strategy enables to effectively inhibit the negative effects

and enhance the PV system adaptability of the interconnected power system.

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references

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