考虑噪声和环境的微电网分布式经济调度策略

Distributed economic dispatching strategy of microgrid considering noise and environment

随着微电网的迅速发展,其运行和经济优化控制越来越受到人们的关注。传统的经济优化控制为集中式控制,其面临着单点故障,资源消耗大等问题。分布式控制可以很好地解决上述问题,并可以结合一致性算法解决微电网中的经济调度问题。系统调度过程需要通信网络完成信息的交互,然而通信网络通常会受到噪声的影响,针对此问题,本文提出了一种基于有限时间一致性的完全分布式经济调度策略来应对噪声的干扰,并以分布式系统的发电成本和环境污染排放最小为目标,通过引入一致性增益函数来抑制噪声,实现系统的完全分布式环境/经济优化调度。算例仿真表明,本文所提出的完全分布式调度策略在保证一致性收敛的同时,可以抑制噪声的干扰并且达到了较好的优化效果。

With the rapid development of microgrid, its operation and economic optimization control have attracted more and more attention. Traditional economic optimization control is centralized control, which is faced with single point of failure, large resource consumption and other problems. Distributed control can solve the above problems well, and the economic scheduling problem in microgrid can be solved by combining consensus algorithm. The system scheduling process requires the communication network to complete the information interaction, but the communication network is usually affected by the noise. For this problem, a fully distributed economic scheduling strategy based on finite time consensus is proposed to deal with the interference of noise, and in a distributed system of minimum power generation cost and environmental pollution as the goal. By introducing consensus gain function to suppress noise, the completely distributed environment/economic optimal scheduling is realized. The simulation results show that the fully distributed scheduling strategy proposed in this paper can suppress the interference of noise and achieve good optimization effect while ensuring consistent convergence.