Consensus-Based Coordinated Control of Flexible Interconnected DC Microgrid Clusters

被引：1

作者：

Qin, Dandan ^{[1
]}

Wang, Chao ^{[2
]}

Liu, Yuliang ^{[2
]}

Wu, Rundong ^{[1
]}

Hou, Dengshan ^{[3
]}

Huang, Weijian ^{[4
]}

Chen, Liangliang ^{[4
]}

机构：

[1] State Grid Anhui Elect Power Co, Hefei 230061, Peoples R China

[2] State Grid Anhui Wuhu Power Supply Co, Wuhu 241027, Peoples R China

[3] State Grid Anhui Fuyang Power Supply Co, Fuyang 236000, Peoples R China

[4] Nanchang Hangkong Univ, Coll Informat Engn, Nanchang 330063, Peoples R China

来源：

ENERGIES | 2024年 / 17卷 / 01期

基金：

中国国家自然科学基金;

关键词：

direct current (DC) microgrid cluster; isolated bidirectional DC-DC converter; coordinated control; local measurement;

D O I：

10.3390/en17010043

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper proposes a consensus-coordinated control strategy to improve the stability and reliability of interconnected direct current (DC) microgrid cluster systems based on isolated bidirectional DC-DC converters. Compared with the traditional communication-based control strategy, the proposed method does not require an additional communication system. The proposed method is only based on local measurement information, making the whole cluster form an organic unit. No matter where the power disturbance occurs in the continuous-flow microgrid, all the balance units in the system can be linked to provide emergency power support for the disturbed microgrid, improve the dynamic characteristics of the DC voltage of the disturbed microgrid, and reduce the steady-state deviation of the DC voltage of the disturbed grid. The disturbance power is reasonably borne by the balance unit of the whole system according to its equivalent power distribution coefficient ratio. Finally, the effectiveness of the proposed control strategy is verified through the PSCAD/EMTDC simulation.

引用

页数：17

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