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| 摘要: |
| 介绍了多Agent技术及其在继电保护领域中的应用情况,从横向和纵向2个角度研究了多Agent技术应用于继电保护的前景。横向应用提出了集合保护的概念,把每个微机保护装置看作一个Agent,与和它有信息共享和协作关系的其他保护装置一起组成保护集合,这些集合构成了系统保护的保护单元。集合保护能在不损害保护独立性的前提下提高保护系统的性能,并区分故障和过载,防止连锁跳闸事故发生。重点研究了纵向应用,把一个微机保护装置看成由多个Agent组织而成的智能保护,通过对各种保护原理的动作结果进行综合,以提高保护的可靠性;根据故障类型和保护背侧系统阻抗值来切换保护定值使保护定值最佳;利用对采集数据的谐波计算提高故障区域的判断准确性。并给出了智能保护的实现方案。 |
| 关键词: 继电保护,多Agent技术,集合保护,智能保护,系统保护 |
| DOI： |
| 分类号:TM77 |
| 基金项目: |
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| Applications of multi-Agent technology in protection system |
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WANG Hui-fang HE Ben-teng SHI Hong-yu
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| Abstract: |
| Multi-Agent technology and its applications in protection system are introduced and its application prospects are researched in two aspects.The conception of aggregate protection is presented as transverse application,which regards each protective device as an Agent and aggregates these protective device Agents together to share information and cooperate with each other.These protective aggregations are the base units of system protection.Aggregate protection can improve the performance of protection system without damaging the independence of protective device and distinguish the transmission line overload from the faults to prevent improper cascading trips.The longitudinal application is researched in detail.A microcomputer protection is treated as an intelligent protective device composed of many Agents,which analyzes and synthesizes results of different protection principle to improve its reliability,selects the best protective settings according to fault type and dorsal-system impedance,and carries out harmonic calculation to improve the sense of faulty area.A scheme to implement intelligent protection is given. |
| Key words: protective relay,multi-Agent technology,aggregate protection,intelligent protection,system protection |
