孤岛方式下基于多代理系统的微电网有功-频率控制

摘要

A muhi-agent system based microgrid control framework is presented,which includes the central control agent,local control agent, distributed resource agent and load agent. The special functions of different agents are analyzed. Under the grid-connected condition,the central control agent uses linear optimization model to achieve rapid control and carries out economic optimization,while under the islanded condition,the central control agent,working in emergency mode,regulates the power of each distributed resource and cuts off part of the load to guarantee the steady and safe transition when necessary. Simulation of the test grid shows that,the control strategy based on multi-agent system can effectively recover the frequency of microgrid under the islanded condition.%提出基于多代理系统的微电网框架.建立了由微电网控制代理、局部控制代理、分布式能源代理及负荷代理组成的多代理控制系统,并对各种代理的具体功能进行了详细分析.当微电网与大电网并网运行时,总控制代理利用线性化模型实现快速控制的同时进行经济优化:当处于孤岛模式下,总控制代理切换到紧急模式,调节分布式能源的功率,在必要时切除部分负荷保证系统的稳定安全过渡.通过测试网络的仿真表明,在孤岛模式下,基于多代理系统的控制策略可以有效地恢复微电网的频率.