Coordinated Power Control for DC Microgrid Based on Distributed Raft Algorithm

被引：0
|
作者：
Liu Y. [1 ]
Liu S. [2 ]
Wang J. [1 ]
Xu D. [3 ]
机构：
[1] College of Intelligent Systems Science and Engineering, Harbin Engineering University, Harbin
[2] Yantai Research Institute, Harbin Engineering University, Yantai
[3] School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin
来源：
Dianli Xitong Zidonghua/Automation of Electric Power Systems | 2022年 / 46卷 / 19期
基金：
中国国家自然科学基金;
关键词：
distributed Raft algorithm; microgrid; photovoltaic prediction; power control;
D O I：
10.7500/AEPS20211021002
中图分类号：
学科分类号：
摘要：
With the promotion and application of grid-connection of distributed energy, the DC microgrid as a carrier has many advantages in terms of controllability and power quality. Firstly, this paper aims at the problem of reliable communication control and power coordinated control in DC microgrid with multi-bus distributed energy. The uncertainty of photovoltaic and generator output is considered. The coefficient of power evaluation is defined. The rationalization of power coordination control is improved and the burden of multi-bus communication is reduced. Secondly, the long short-term memory network in deep learning is used to predict the photovoltaic output. Based on the distributed Raft algorithm to participate in the secondary control of the microgrid, the power coordinated control and economic optimization of the DC microgrid are realized. Finally, a simulation model of four-terminal DC microgrid based on PSCAD/EMTDC is established for validation. The simulation results show that the proposed control method can effectively improve microgrid stability and coordinate microgrid power control. © 2022 Automation of Electric Power Systems Press. All rights reserved.
引用
收藏
页码：70 / 77
页数：7
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