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- Title
Coordinated Power Sharing in Islanding Microgrids for Parallel Distributed Generations.
- Authors
Baneshi, Ehsan; Kolahduzloo, Hasan; Ebrahimi, Javad; Mahmoudian, Mehrdad; Pouresmaeil, Edris; Rodrigues, Eduardo M. G.
- Abstract
Optimal power sharing between parallel inverters and the demand load in microgrids is challenging and particularly critical for power grids in islanding operation. This paper introduces a novel control approach for managing parallel distributed power sources in the presence of variable load in islanding regime. The proposed scheme is based on the modified sliding mode control (MSMC) which is combined with the optimal Riccati control method to achieve convergence at the slip level with higher accuracy. The mathematical principles of the network equations are derived and its stability is obtained using the Lyapunov function. The MSMC simulation results are discussed in relation to the conventional droop method, while the laboratory evaluation was carried out to characterize its dynamic and static response. The results show that the proposed scheme control is able to manage the distributed power generation for static and dynamic load scenarios, and as such, guarantying microgrid frequency stability.
- Subjects
MICROGRIDS; DISTRIBUTED power generation; SLIDING mode control; ELECTRIC power distribution grids; DYNAMIC loads; LYAPUNOV functions
- Publication
Electronics (2079-9292), 2020, Vol 9, Issue 11, p1927
- ISSN
2079-9292
- Publication type
Article
- DOI
10.3390/electronics9111927