Paper Info
Title
Mitigation of voltage and current harmonics in grid-connected microgrids
Abstract
In this paper, a control approach is proposed for selective compensation of main voltage and current harmonics in grid-connected microgrids. Two modes of compensation are considered, i.e. voltage and current compensation modes. In the case that sensitive loads are connected to the point of common coupling (PCC), voltage compensation mode is activated in order to provide a high voltage quality at PCC. Otherwise, grid current harmonics are mitigated (current compensation mode) in order to avoid excessive harmonic supply by the grid. In both modes, harmonic compensation is achieved through proper control of distributed generators (DGs) interface converters. The compensation effort of each harmonic is shared considering the corresponding current harmonic supplied by the DGs. The control system of each DG comprises harmonic compensator, power controllers, voltage and current controllers and virtual impedance loop. Virtual impedance is considered at fundamental frequency to enhance power control and also at harmonic frequencies to improve the nonlinear load sharing among DGs. Simulation results are presented to demonstrate the effectiveness of the proposed method.
Year
DOI
Venue
2012
10.1109/ISIE.2012.6237331
ISIE
Keywords
Field
DocType
distributed power generation,electric current control,electric impedance,harmonics suppression,load management,power control,power convertors,power generation control,power grids,voltage control,dg interface converter,pcc,current compensation mode,current controller,current harmonics compensation,current harmonics mitigation,distributed generator interface converter control,excessive harmonic supply avoidance,grid-connected microgrids,harmonic compensator,nonlinear load sharing improvement,point of common coupling,power controller,virtual impedance loop,voltage compensation mode,voltage controller,voltage harmonics compensation,voltage harmonics mitigation,voltage quality,control systems,fundamental frequency,high voltage,harmonic analysis,reactive power,control system,impedance
Voltage compensation,Control theory,Voltage,Harmonic,Control engineering,AC power,Electrical impedance,Harmonic analysis,Harmonics,Engineering,High voltage
Conference
ISSN
ISBN
Citations 
2163-5137 E-ISBN : 978-1-4673-0157-2
978-1-4673-0157-2
2
PageRank 
References 
Authors
0.40
2
4
Name
Order
Citations
PageRank
Mehdi Savaghebi111616.55
Josep M. Guerrero21376193.89
Alireza Jalilian3907.88
Juan C. Vasquez454471.42