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Intelligent Power Sharing of DC Isolated Microgrid Based on Fuzzy Sliding Mode Droop Control.

Authors :
Mi, Yang
Zhang, Han
Fu, Yang
Wang, Chengshan
Loh, Poh Chiang
Wang, Peng
Source :
IEEE Transactions on Smart Grid; May2019, Vol. 10 Issue 3, p2396-2406, 11p
Publication Year :
2019

Abstract

Linear droop control can realize power sharing among generators in dc microgrid (MG) without relying on critical communication links. However, the droop relationship between output power and voltage magnitude of renewable power generate system is nonlinear with uncertainties and disturbances from renewable sources and loads in practical dc MG. A novel droop scheme is proposed for an isolated dc MG to solve the nonlinear problem. The control strategy is proposed by using the Takagi–Sugeno (T–S) fuzzy model and sliding mode algorithm. The nonlinear droop characteristics can be represented by T–S model through taking advantage of locally measured output variables. The sliding mode droop controller is designed for compensating the uncertainties and disturbances to derive accurate power sharing based on T–S fuzzy model. The proposed scheme is proved to be effective under variable operating conditions through PSIM/MATLAB simulation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
19493053
Volume :
10
Issue :
3
Database :
Complementary Index
Journal :
IEEE Transactions on Smart Grid
Publication Type :
Academic Journal
Accession number :
136102464
Full Text :
https://doi.org/10.1109/TSG.2018.2797127