Paper Info
Title
Secondary Control for Voltage Quality Enhancement in Microgrids
Abstract
In this paper, a hierarchical control scheme is proposed for enhancement of sensitive load bus (SLB) voltage quality in microgrids. The control structure consists of primary and secondary levels. The primary control level comprises distributed generators (DGs) local controllers. Each of these controllers includes a selective virtual impedance loop which is considered to improve sharing of fundamental and harmonic components of load current among the DG units. The sharing improvement is provided at the expense of increasing voltage unbalance and harmonic distortion. Thus, the secondary control level is applied to manage the compensation of SLB voltage unbalance and harmonics by sending proper control signals to the primary level. DGs compensation efforts are controlled locally at the primary level. The system design procedure for selecting proper control parameters is discussed. Simulation results are provided in order to demonstrate the effectiveness of the proposed control scheme.
Year
DOI
Venue
2012
10.1109/TSG.2012.2205281
Smart Grid, IEEE Transactions
Keywords
DocType
Volume
distortion,distributed power generation,power supply quality,voltage control,compensation efforts,control parameters,distributed generators,harmonic components,harmonic distortion,hierarchical control scheme,local controllers,microgrids,secondary control,sensitive load bus,voltage quality enhancement,voltage unbalance,distributed generator (dg),microgrid,voltage harmonics
Journal
3
Issue
ISSN
Citations 
4
1949-3053
26
PageRank 
References 
Authors
2.02
8
4
Name
Order
Citations
PageRank
Mehdi Savaghebi111616.55
Alireza Jalilian2907.88
Juan C. Vasquez354471.42
josep m guerrero4818.38