TY - JOUR
T1 - Distributed voltage control and power management of networked microgrids
AU - Golsorkhi, Mohammad S.
AU - Hill, David John
AU - Karshenas, Hamid Reza
N1 - Funding Information:
Manuscript received July 11, 2017; revised September 7, 2017; accepted October 27, 2017. Date of publication November 13, 2017; date of current version October 30, 2018. This work was supported by the Research Grants Council of the Hong Kong Special Administrative Region through the Theme-based Research Scheme under Project T23-701/14-N. Recommended for publication by Associate Editor Qing-Chang Zhong. (Corresponding author: Mohammad S. Golsorkhi.) M. S. Golsorkhi and H. R. Karshenas are with the Department of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan 84156, Iran (e-mail: [email protected]; [email protected]).
Publisher Copyright:
© 2013 IEEE.
PY - 2018/12
Y1 - 2018/12
N2 - In this paper, a distributed control scheme is proposed for voltage control and power management of coupled microgrids (MGs). The control scheme is implemented in a two-level structure. In the primary level, a voltage-current droop controller is adopted in the dq reference frame to facilitate proportional load sharing among the distributed energy resources (DERs) with fast dynamic response. A novel distributed secondary control scheme is introduced to regulate the power exchange among MGs and restore the average voltage to the nominal value. The secondary controller is comprised of a network of control agents interconnected through low bandwidth communication links. Each control agent alters the offset of d - and q-axis droop characteristics to change the current output of the DERs within each cluster until the current exchanges among the clusters are regulated at the set points and the average voltage is restored to the nominal value. If the load of an MG cluster is increased above its total generation capacity, the secondary controller alters the current exchange among the clusters to prevent overload. Simulation and experimental results are presented to demonstrate the efficacy of the proposed method.
AB - In this paper, a distributed control scheme is proposed for voltage control and power management of coupled microgrids (MGs). The control scheme is implemented in a two-level structure. In the primary level, a voltage-current droop controller is adopted in the dq reference frame to facilitate proportional load sharing among the distributed energy resources (DERs) with fast dynamic response. A novel distributed secondary control scheme is introduced to regulate the power exchange among MGs and restore the average voltage to the nominal value. The secondary controller is comprised of a network of control agents interconnected through low bandwidth communication links. Each control agent alters the offset of d - and q-axis droop characteristics to change the current output of the DERs within each cluster until the current exchanges among the clusters are regulated at the set points and the average voltage is restored to the nominal value. If the load of an MG cluster is increased above its total generation capacity, the secondary controller alters the current exchange among the clusters to prevent overload. Simulation and experimental results are presented to demonstrate the efficacy of the proposed method.
KW - Distributed control
KW - distributed power generation
KW - inverters
KW - power electronics
UR - http://www.scopus.com/inward/record.url?scp=85034610039&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2017.2773138
DO - 10.1109/JESTPE.2017.2773138
M3 - Article
AN - SCOPUS:85034610039
SN - 2168-6777
VL - 6
SP - 1892
EP - 1902
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
IS - 4
ER -