TY - JOUR

T1 - Autonomous Voltage Unbalance Compensation in an Islanded Droop-Controlled Microgrid

A1 - Savaghebi,Mehdi

A1 - Jalilian,Alireza

A1 - Vasquez,Juan Carlos

A1 - Guerrero,Josep M.

AU - Savaghebi,Mehdi

AU - Jalilian,Alireza

AU - Vasquez,Juan Carlos

AU - Guerrero,Josep M.

PB - I E E E

PY - 2013

Y1 - 2013

N2 - Recently, there is an increasing interest in using distributed generators (DGs) not only to inject power into the grid, but also to enhance the power quality. In this paper, a stationary-frame control method for voltage unbalance compensation in an islanded microgrid is proposed. This method is based on the proper control of DGs interface converters. The DGs are controlled to compensate voltage unbalance autonomously while share the compensation effort and also active and reactive power, properly. The control system of the DGs mainly consists of active and reactive power droop controllers, virtual impedance loop, voltage and current controllers and unbalance compensator. The design approach of the control system is discussed in detail and simulation and experimental results are presented. The results demonstrate the effectiveness of the proposed method in compensation of voltage unbalance.

AB - Recently, there is an increasing interest in using distributed generators (DGs) not only to inject power into the grid, but also to enhance the power quality. In this paper, a stationary-frame control method for voltage unbalance compensation in an islanded microgrid is proposed. This method is based on the proper control of DGs interface converters. The DGs are controlled to compensate voltage unbalance autonomously while share the compensation effort and also active and reactive power, properly. The control system of the DGs mainly consists of active and reactive power droop controllers, virtual impedance loop, voltage and current controllers and unbalance compensator. The design approach of the control system is discussed in detail and simulation and experimental results are presented. The results demonstrate the effectiveness of the proposed method in compensation of voltage unbalance.

KW - Distributed generator (DG)

KW - Microgrid

KW - Voltage unbalance compensation

U2 - 10.1109/TIE.2012.2185914

DO - 10.1109/TIE.2012.2185914

JO - I E E E Transactions on Industrial Electronics

JF - I E E E Transactions on Industrial Electronics

SN - 0278-0046

IS - 4

VL - 60

SP - 1390

EP - 1402

ER -