Control strategy of parallel converters in DC microgrid based on passivity

被引：0
|
作者：
Zhang Z. [1 ,2 ]
Song G. [1 ,2 ]
Hou M. [3 ]
Yang B. [1 ,2 ]
Zhang X. [4 ]
Liu C. [1 ,2 ]
机构：
[1] State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin
[2] Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, School of Electrical Engineering, Hebei University of Technology, Tianjin
[3] Horqin District Power Supply Branch of Inner Mongolia East Electric Power Co., Ltd., Tongliao
[4] North China Electric Power Research Institute Limited Liability Company, Beijing
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 11期
关键词：
Control algorithm; DC-DC converters; Microgrids; Renewable energy; Robustness; Voltage without deviation;
D O I：
10.19912/j.0254-0096.tynxb.2021-0539
中图分类号：
学科分类号：
摘要：
Aiming at the stability and coordination of DC microgrid with mixed load formed by renewable energy aggregation, a new control algorithm combining passive control and improved nonlinear disturbance observer feedforward compensation is proposed, which not only eliminates the influence of constant power load on DC microgrid, but also improves the system robustness, Then the line impedance compensation is used to improve the shunt accuracy and realize no voltage deviation. The research uses Matlab/Simulink to build a parallel DC-DC converter, simulation model for verification. By comparing the traditional passive control and proportional integral regulation passive control, it is shown that the proposed control strategy suppresses the influence of constant power load and line impedance. Finally, the effectiveness of the strategy was verified on the Opal-RT semi-physical experiment platform. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
引用
收藏
页码：501 / 507
页数：6
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