Paper Info
Title
A Novel Extended Impedance-Power Droop for Accurate Active and Reactive Power Sharing in a Multi-Bus Microgrid With Complex Impedances
Abstract
This paper addresses a novel and flexible control algorithm based on complex virtual impedance for improvement of power sharing in a multi-bus microgrid with complex impedance of lines. In the proposed method, first, the Extended Impedance-Power droop equations are derived. Using nonlinear droop equations, equivalent resistance and inductance of each DG unit are obtained by active and reactive power, separately. Then, an appropriate algorithm is employed to implement Impedance-Power droop to manage the virtual impedances adaptively. The proposed algorithm can optimally share both active and reactive power, even when the structure is changed without any knowledge of microgrid parameters and high-bandwidth communication links. The parameters of the proposed controller are designed based on the nominal power of inverters. Moreover, the stability margin of the system is analyzed. Finally, the feasibility of the proposed control scheme is confirmed via simulations and experiments.
Year
DOI
Venue
2020
10.1109/TSG.2020.2984486
IEEE Transactions on Smart Grid
Keywords
DocType
Volume
Complex impedance,impedance-power droop,multi-bus microgrid,power sharing,virtual impedance
Journal
11
Issue
ISSN
Citations 
5
1949-3053
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Reza Razi100.68
Hossein Iman-Eini21310.55
Hamzeh, M.3175.11
Seddik Bacha45317.58