基于广域网和多智能体的自适应协调保护系统的研究

Study on Multi-agent and WAN Based Adaptive Coordinated Protection System

介绍了一个基于广域网和多智能体的自适应协调保护系统(MAWBACPS)。系统利用IP广域网实现电网广域信息的实时交换;利用多Agent系统在解决分布式在线问题的合作求解能力,实现保护之间动作的协调。提出了尽力自适应的协调保护新思想以及线路电流后备保护的网络化自适应整定的新方法。论文还介绍了MAWBACPS的结构、通信机制、协调控制策略以及相关的智能体设计。基于上述思想和方法研制了仿真系统,仿真试验结果表明:自适应定值计算所需的时间可以被控制在允许的范围内,从而在一般情况下均可实现电网后备保护的自适应协调动作。

A Multi-agent and WAN based adaptive coordinated protection system （MAWBACPS） is proposed. The system utilizes IP Intranet to realize real-time wide area information exchange of a power system. Multi-agent system＇s several good qualities to solve distributing problems are used to realize the coordination of the operation settings of protective relays. A new idea of effort-best adaptation for power system protection and a new method to determine adaptive current relay settings of lines are proposed. Moreover, the structure, communication mechanism and coordination control strategy of MAWBACPS, and relating agents＇ designs are presented. A simulating system has been developed according to above presented idea and approaches. Experiment results illustrate that the time of calculating adaptive relay settings of an actual power network can be within allowable range. Therefore, the coordinated operating of the back-up relays in a power network can be achieved in most situations of the network.