摘要
本文提出了基于蚁群优化算法的方向过电流保护整定配合的优化模型。首先说明了方向过电流保护的时间特性,然后建立了方向过电流整定优化模型。优化目标是所有主保护动作时间之和最小,考虑了主后备保护配合约束、保护动作时间约束、启动电流约束等。本文所提方向过电流保护为非线性优化问题,提出利用改进蚁群优化算法来求解该模型。最后本文利用IEEE8节点进行仿真分析,并与其他方法进行对比,说明本文所提算法在求解保护配合优化问题的优势。
The coordination of directional overcurrent relay(DOCR)based on Ant Colony Optimization Algorithm is proposed.First the time-current curve of DOCR is analyzed.Then the DOCR settings optimization model is built.The objective function is to minimize the sum of operating time of all the main relays.The coordination of directional overcurrent relays is formulated as a non-linear programming problem.The main and backup relays coordination,relay operation time,pickup current are included into the constraints.Then the Improved Ant Colony Algorithm is used to solve the proposed model.In this article the case study of IEEE 8-bus system is utilized to demonstrate the efficiency of this algorithm and the results had been compared with the former one to show the improvement.
作者
游昊
李雪冬
李武龙
YOU Hao;LI Xue-dong;LI Wu-long(Yunnan Electric Power Dispatching and Control Center,Kunming 650011 China;Beijing Joinbright Digital Electric Technology Co.,Ltd.,Beijing 100085 China)
出处
《自动化技术与应用》
2021年第2期1-5,共5页
Techniques of Automation and Applications
关键词
继电保护整定值
过电流保护
配合优化
蚁群优化算法
settings of relay protection
overcurrent relays
optimal coordination
Ant Colony Optimization Algorithm
