Abstract:  In order to realize the effectiveness of adaptive control for microgrid power balance, an adaptive power balance control method based on network state estimation is proposed. The algorithm takes full account of traffic congestion / non congestion performance, and uses real-time network state estimation combined with gain scheduling technology to make the controller adapt to the change of communication network state. Then, the moving average threshold estimator is adopted, and the buffer length and threshold selection method are provided in the case of congestion/non congestion in two PLC communication networks. In addition, a consensus based multi agent control system design procedure is developed, which ensures that all evaluation states converge to reference state values, so as to ensure the fairness of assessment state participation. Finally, simulation results show the effectiveness of the proposed algorithm.

Key words: Network state, estimation, microgrid, power balance, adaptive control

摘要： 为实现微电网功率平衡自适应控制的有效性，提出一种基于网络状态估计的微电网功率平衡自适应控制。该算法充分考虑了通信网络拥堵/非拥堵性能，利用实时的网络状态估计，结合增益调度技术，使控制器能够适应通信网络状态的变化。然后，采用了移动平均阈值估计器，并提供了在拥挤/不拥挤两种PLC通信网络的情况下缓冲区长度和阈值选取方式。此外，我们开发了一个基于协商一致的多agent控制系统设计程序，确保所有评估状态收敛到参考状态值，从而确保评估状态参与的公平性。最后，通过仿真实验验证了算法性能的有效性。

关键词: 网络状态, 估计, 微电网, 功率平衡, 自适应控制