Paper Info
Title
Robust, Accurate, and Fast Decentralized Power Sharing Mechanism for Isolated DC Microgrid Using Droop-Based Sliding-Mode Control
Abstract
In this paper, a droop-based sliding mode controller (DBSMC) is designed for power sharing in an isolated DC microgrid (DC MG), with improved nonlinear droop model, in the presence of bounded structured uncertainties and external disturbances. The proposed DBSMC strategy does not require any communication link. The design process of the proposed controller is such that the trade-off between the two factors proportional power sharing and precise voltage regulation reaches the minimum possible. The creative design of the controller greatly reduced the control action stress, in such a way that, the occurrence of various uncertainties in the nonlinear droop model is compensated by applying small intelligent changes in the control parameters, using a fuzzy approximator. To evaluate the efficiency of the designed DBSMC controller, simulations are performed on an isolated DC MG with DC-DC buck configuration in MATLAB software. Finally, the real-time digital simulation results utilizing real-time digital power system simulator (RTDS) corroborate the performance of the proposed DBSMC controller. The simulation results obtained from MATLAB and the RTDS verify the robust, accurate and fast function of the proposed droop-based controller in power sharing of the isolated DC MG in the presence of variable operating conditions, parametric uncertainties and external disturbances.
Year
DOI
Venue
2022
10.1109/TSG.2022.3181494
IEEE Transactions on Smart Grid
Keywords
DocType
Volume
Droop-based sliding mode control (DBSMC),fuzzy approximator,power sharing,improved nonlinear droop model,DC-DC buck converter,isolated DC MG
Journal
13
Issue
ISSN
Citations 
6
1949-3053
0
PageRank 
References 
Authors
0.34
8
6
Name
Order
Citations
PageRank
Mohammad Veysi100.68
Jamshid Aghaei25419.74
Mohammad Reza Soltanpour300.34
Mokhtar Shasadeghi401.01
Behrooz Bahrani500.34
Daniel Joseph Ryan600.34