基于多Agent技术的电流速断保护自适应研究

Study on current fast tripping adaptive protection based on multi-agent technology

现代电力系统是一个复杂开放的分布式系统,多Agent系统(MAS)是分布式人工智能的新技术。将多Agent技术应用于自适应保护中去,建立基于MAS的自适应保护体系,通过各个Agent之间的协作,使得自适应保护能够自动智能地适应电力系统的各种变化。以自适应电流速断保护为实现目标,利用Agent设计原理,对各Agent进行各自功能的定义和它们之间通信机制的设计。为了验证其可行性,在一简单系统上对其进行仿真,结果表明,基于MAS的自适应电流速断保护,不仅可以扩大保护范围,还可以缩短后备保护的动作时间。

Modern power system is a complex, open and distributed system. Multi-agent is a new technology of distributed artificial intelligence. In this paper, the multi-agent theory is applied in the adaptive protection, and the architecture of MAS is built in it. Through the cooperation among agents, the adaptive protection can adapt protection to various changes of power system automatically and intelligently. To achieve adaptive current fast tripping protection, this paper defines each agent function and designs the communication mechanism between them by the Agent＇s design principle. To prove its feasibility, a simulation is made on a simple system. The results of the simulation validate that MAS-based adaptive current fast tripping protection can not only expand the scope of protection, but also shorten the backup protection action time.