宁夏电力Issue(2)：19-26,8.DOI:10.3969/j.issn.1672-3643.2024.02.004
山区电网线路过载保护协调优化控制策略研究
Research on coordination and optimization control strategy of line overload protection in mountainous power grid
黄莹凤 1卢杰2
作者信息
- 1. 百色新铝电力有限公司,广西 百色 533000
- 2. 广西大华智城股份有限公司,广西 百色 533000
- 折叠
摘要
Abstract
Many small hydropower stations in mountainous power grids have a light load.When combined with the inte-gration 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 deter-mined 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 maxi-mize system safety margins by optimizing power output and protection action while minimizing the frequency of protec-tion 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
山区电网/线路过载保护/潮流追踪法/功率灵敏度/清洁能源外送Key words
mountain power grid/line overload protection/current tracking method/power sensitivity/clean energy delivery分类
信息技术与安全科学引用本文复制引用
黄莹凤,卢杰..山区电网线路过载保护协调优化控制策略研究[J].宁夏电力,2024,(2):19-26,8.
