Stability Analysis and Regional Cooperative Control of PV/HESS Interconnected Power System with Controlled Inertia

ZHANG Xiangyu; LI Lingfei; FU Yuan

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Stability Analysis and Regional Cooperative Control of PV/HESS Interconnected Power System with Controlled Inertia

更新时间：2025-12-08

- Stability Analysis and Regional Cooperative Control of PV/HESS Interconnected Power System with Controlled Inertia
- Vol. 47, Issue 5, Pages: 1694-1705(2021)
- 作者机构：
  
  华北电力大学新能源电力系统国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 May 2021，
  
  Published：2021
- 稿件说明：
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ZHANG Xiangyu, LI Lingfei, FU Yuan. Stability Analysis and Regional Cooperative Control of PV/HESS Interconnected Power System with Controlled Inertia[J]. 2021, 47(5): 1694-1705.
DOI：

ZHANG Xiangyu, LI Lingfei, FU Yuan. Stability Analysis and Regional Cooperative Control of PV/HESS Interconnected Power System with Controlled Inertia[J]. 2021, 47(5): 1694-1705. DOI：

摘要

利用混合储能装置扩展惯量来源能够有效改善光储互联系统的频率稳定

但多机惯量调整将影响系统的暂态稳定。为解决可控惯量带来的系统暂态稳定问题

首先推导了光储互联系统的等值数学模型

分析两区域虚拟惯量对系统功角首摆的影响。其次

通过建立互联系统的小信号模型

观察系统特征根随两区域惯量系数的变化

分析了可控惯量对系统阻尼特性的影响

并提出一种基于光储互联系统的区域协同控制策略。最后

利用MATLAB/Simulink对高光伏渗透率互联系统进行仿真分析。结果表明:所提控制策略不仅能够抑制系统频率突变

改善系统频率稳定

还能兼顾系统的阻尼与功角稳定

体现出更加友好的并网特性。

Abstract

Expanding inertia from hybrid energy storage system（HESS） can improve the frequency stability of PV/HESS interconnected system effectively. However

the transient stability of system will be affected by complex inertia adjustment. In order to solve the transient stability problem caused by controllable inertia

the equivalent model of PV/HESS interconnected system was derived

and the effect of virtual inertia on the first swing of power angle was analyzed firstly. Then

the effect of adjustable virtual inertia on the damping characteristic was analyzed by establishing a small-signal model and using eigenvalue analysis method. Besides

a regional cooperative control of PV/HESS interconnected power system was proposed. Finally

a simulation model was established to verify the effectiveness of the proposed strategy. The results show that the strategy can take into account the frequency regulation

power angle stability and damping oscillations to restrain the sudden change in system frequency and to improve the frequency stability of system.

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