摘要
通过对广域保护应用基础研究,提出一种利用区域电网信息的智能保护系统,与现有主保护协同工作,加强电网继电保护水平,简化后备保护。同时,针对广域信息采集易受干扰而出现信息丢失或畸变等实际问题,以及现有广域保护原理对此考虑不足的情况,提出了包括基于状态关联的区域保护原理与基于遗传算法故障判别原理的区域电网智能保护的决策模块及其工作机制。建立了基于遗传算法的故障数学模型,仿真试验验证了该模型的有效性及高容错性。
By studying the application basis of wide area protection, an intelligent protection system based on regional power network information is put forward to work in collaboration with the currently used main protection in strengthening the capability of power system relay protection and simplifying the backup protection. In the meantime, owing to the fact that wide area information is easily disturbed, lost and distorted, while not fully considered in current wide area protection principles, the decision-making and working mechanism of a new regional power network intelligent protection is proposed including the state correlation-based regional protection principle and the genetic algorithm-based fault identification principle. A fault mathematical model based on the genetic algorithm is developed. The simulation results have verified the validity and good fault-tolerance capability of the model proposed.
出处
《电力系统自动化》
EI
CSCD
北大核心
2008年第17期40-44,共5页
Automation of Electric Power Systems
关键词
区域电网
继电保护
遗传算法
容错性
regional power network
relay protection
genetic algorithm
fault-tolerance capability
