NDLI: Robust distributed stochastic secondary control of microgrids with system and communication noises

Content Provider	IET Digital Library
Author	Dehkordi, Nima Mahdian Nekoukar, Vahab
Abstract	This study proposes an advanced robust stochastic cooperative frequency/voltage restoration control considering the effects of both communication/system noises based on Kalman-filtering theory for secondary control of islanded microgrids. Compared with existing ideal and noise-resilient distributed methods, the proposed robust stochastic distributed secondary control method can achieve mean-square synchronisation for voltage and frequency restoration of distributed generations (DGs) along with the real power sharing accuracy through a sparse communication network, even though both the system measurement and communication channels are susceptible to noise interferences and limited band-width constraints. To this end, the graph theory, stochastic theory, and Kalman-filtering theory are employed to estimate the states of each DG based on the information of noisy measurement, and then the estimated signals are sent to the neighbour DGs via a noisy communication environment. The main advantages of the proposed method are its ability to provide the quality of the estimate, low complexity, low computational burden, and working even though both the system and communication channels are susceptible to noise interferences and limited band-width constraints. Finally, the simulation results in MATLAB/SimPowerSystems Toolbox show that the proposed method has better, robust, resilient, acceptable, and desirable performance compared with the recent and effective methods.
Starting Page	1148
Ending Page	1158
Page Count	11
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 6, Mar (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0694
Journal	IET Generation, Transmission & Distribution
Publisher Date	2020-01-09
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Combinatorial Mathematics Communication Channel Communication Noises Control of Electric Power System Distributed Control Distributed Generations Distributed Power Generation Estimated Signal Filtering Method in Signal Processing Frequency Restoration Graph Theory Islanded Microgrid Kalman Filter Kalman-filtering Theory Limited Band-width Constraint Low Computational Burden Mean-square Synchronisation Multivariable Control System Neighbour DGs Noise Interferences Noise-resilient Distributed Method Noisy Communication Environment Noisy Measurement Power Distribution Fault Power Generation Control Power Sharing Accuracy Robust Control Robust Stochastic Distributed Secondary Control Method Secondary Control Method Sparse Communication Network Stability in Control Theory Stochastic Secondary Control Stochastic Theory Synchronisation System Measurement
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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