A stability control way of bus voltage in DC microgrid with constant power load

被引：6

作者：

Wang, Lihua ^{[1
]}

Liu, Xiaona ^{[1
]}

Ni, Xue ^{[1
]}

Jiang, Shaojie ^{[1
]}

Liu, Siyuan ^{[1
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Elect & Informat Engn, Qingdao 266590, Peoples R China

来源：

IEEJ TRANSACTIONS ON ELECTRICAL AND ELECTRONIC ENGINEERING | 2021年 / 16卷 / 09期

关键词：

independent DC microgrid; constant power load; sliding mode variable structure control; ro-bustness; CONVERTER; SYSTEM;

D O I：

10.1002/tee.23416

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

During the operation of the independent DC microgrid, the bus voltage will fluctuate with the random changes of the load and source. To maintain the stability of the bus voltage, a control strategy needs to be introduced in the DC microgrid. According to the bus voltage change of DC microgrid, this paper establishes a large-signal mathematical model of DC microgrid with constant power load. Taking the bidirectional DC-DC converter as the control object, a sliding mode variable structure controller based on the washout filter is introduced, and the bus voltage is stabilized at the desired voltage value through the selection of control parameters. The simulation experiment results show that the control strategy proposed in this paper can effectively restrain the fluctuation of the bus voltage under the condition of random changes of the load and source and has strong robustness. (c) 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

引用

页码：1187 / 1194

页数：8

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