Paper Info
Title
Secondary Control Scheme for Voltage Unbalance Compensation in an Islanded Droop-Controlled Microgrid.
Abstract
The concept of microgrid hierarchical control is presented recently. In this paper, a hierarchical scheme is proposed which includes primary and secondary control levels. The primary level comprises distributed generators (DGs) local controllers. The local controllers mainly consist of power, voltage and current controllers, and virtual impedance control loop. The central secondary controller is designed to manage the compensation of voltage unbalance at the point of common coupling (PCC) in an islanded microgrid. Unbalance compensation is achieved by sending proper control signals to the DGs local controllers. The design procedure of the control system is discussed in detail and the simulation results are presented. The results show the effectiveness of the proposed control structure in compensating the voltage unbalance.
Year
DOI
Venue
2012
10.1109/TSG.2011.2181432
IEEE Trans. Smart Grid
Keywords
Field
DocType
Voltage control,Reactive power,Control systems,Impedance,Inverters,Smart grids,Frequency control
Control theory,Control theory,Power control,Electronic engineering,Control engineering,AC power,Automatic frequency control,Engineering,Control system,Voltage regulator,Microgrid,Voltage droop
Journal
Volume
Issue
ISSN
3
2
1949-3053
Citations 
PageRank 
References 
39
2.75
10
Authors
4
Name
Order
Citations
PageRank
Mehdi Savaghebi111616.55
Alireza Jalilian2907.88
Juan C. Vasquez354471.42
Josep M. Guerrero41376193.89