Research on coordination and optimization control strategy of line overload protection in mountainous power grid

HUANG Yingfeng; LU Jie

doi:10.3969/j.issn.1672-3643.2024.02.004

English Version Journal Login

您当前的位置：

首页 >

文章列表页 >

Research on coordination and optimization control strategy of line overload protection in mountainous power grid

更新时间：2026-06-27

- Research on coordination and optimization control strategy of line overload protection in mountainous power grid
- Ningxia Electric Power Issue 2, (2024)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1672-3643.2024.02.004
  CLC：
- Online First：27 May 2024，
  
  Published：2024
- 稿件说明：
移动端阅览
HUANG Yingfeng, LU Jie. Research on coordination and optimization control strategy of line overload protection in mountainous power grid[J]. Ningxia Electric Power, 2024, (2).
DOI：

HUANG Yingfeng, LU Jie. Research on coordination and optimization control strategy of line overload protection in mountainous power grid[J]. Ningxia Electric Power, 2024, (2). DOI： 10.3969/j.issn.1672-3643.2024.02.004.

摘要

山区电网小水电众多但负荷轻，若叠加新能源大量接入，将造成夏季丰水期输电断面过载，限制清洁能源外送和威胁电网设备安全。为此，提出将断面过载保护与可调节电源进行协调配合以获得最优控制效果的保护动作策略。首先，基于潮流追踪法确定电源至断面的功率传输路径，并基于功率灵敏度确定单个电源对过载线路的影响大小；然后，建立以系统电源损失出力最小和保护动作后系统安全裕度最大为目标的多目标优化模型，通过优化电源出力和保护动作量实现电源出力损失最小和系统安全裕度最大，减少因源荷波动造成保护频繁动作；最后，以某一山区电网为算例进行仿真验证，计算结果表明所建立的模型能够实现电源出力损失最小和系统安全裕度最大的目标。

Abstract

Many small hydropower stations in mountainous power grids have a light load.When combined with the integration of a large number of new energy sources

this can cause the transmission section to be overloaded during the summer peak season

limiting the export of clean energy and threatening the safety of power grid equipment.To address this issue

a protection action strategy that coordinates overload protection with adjustable power sources is proposed to achieve optimal control effectiveness.Firstly

the power transmission path from the power source to the cross-section is determined based on the current tracking method

and the impact of a single power source on the overload line is determined based on power sensitivity analysis.Subsequently

a multi-objective optimization model is established to minimize system transmission power loss and maximize system safety margin after protection action.The approach aims to maximize system safety margins by optimizing power output and protection action while minimizing the frequency of protection actions required.Finally

simulation verification is carried out using a power grid in a specific mountainous area

as an example

demonstrating the effectiveness of the established model.

关键词

Keywords

references

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on a maximum power point tracking algorithm for grid-connected PV systems under non-uniform irradiance conditions

Research on the characteristics of ultra-high frequency and optical signals from partial discharges in GIS

Research on the operation evaluation index system for automatic bus transfer under high penetration of renewable energy

Related Author

No data

Related Institution

No data

AI问答

⁰