An Improved Voltage Compensation Method for Droop-Controlled System in DC Microgrid

被引：0

作者：

Gao, Fei ^{[1
]}

Bozhko, Serhiy ^{[1
]}

Asher, Greg ^{[1
]}

Wheeler, Pat ^{[1
]}

机构：

[1] Univ Nottingham, Dept Elect Engn, Power Elect Machines & Control Grp, Nottingham, England

来源：

IECON 2014 - 40TH ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY | 2014年

关键词：

Droop Control; Voltage Regulation; Constant Power Load; State-Space Model; Stability; Small Signal; Permanent-Magnet Synchronous Generator; HIERARCHICAL CONTROL;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Droop control methods are widely used in dc microgrids due to its simplicity and easy implementation. However, DC bus voltage deviation increases as the droop gain increases although accuracy of power sharing is improved. In order to overcome this paper proposes an improved voltage regulation method under high droop gain circumstance with consideration of cable impedance. It allows accurate power sharing and the low voltage-regulation simultaneously. The reduced-order model is developed neglecting fast converter dynamics. The effect of this proposed method on stability is also studied by eigenvalues method. Time domain simulation in Matlab/Simulink validates all the analysis.

引用

页码：1240 / 1246

页数：7

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