NDLI: Reactive power sharing control for islanded AC microgrid based on fuzzy adaptive compensation method

Content Provider	IET Digital Library
Author	Mi, Yang Yan, Li Cai, Hangyi Fu, Yang Tian, Shuxin Jin, Chi
Abstract	Due to reactive power irrational sharing issue resulting from the mismatched line impedances and unbalanced local loads of the inverters, the hierarchical coordination control strategy based on fuzzy adaptive compensation is designed to improve the accuracy of the reactive power sharing in the islanded AC microgrid. Firstly, in the local controller, the total active power and the average reactive power are obtained by the initial power sharing stage and the secondary power sharing stage, respectively. Then, in the power balancing stage, the average reactive power as the input of the fuzzy control can be used to adaptively adjust the voltage reference value in real time, so the rational sharing of reactive power may be achieved by using the designed control strategy. Furthermore, based on the classification of load fluctuation, the coordinated operation strategy is designed to deal with reactive power sharing for different load fluctuation conditions. Noteworthy, only the low-bandwidth synchronisation signal from the central controller is used to the hierarchical control strategy, which can maintain characteristic of plug-and-play in the microgrid. Simulation and experiment results are presented to validate the effectiveness of the proposed strategy.
Starting Page	585
Ending Page	593
Page Count	9
ISSN	17518687
Volume Number	14
e-ISSN	17518695
Issue Number	Issue 4, Feb (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/14/4
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.0668
Journal	IET Generation, Transmission & Distribution
Publisher Date	2019-11-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Control Average Reactive Power Central Controller Control of Electric Power System Distributed Power Generation Fuzzy Adaptive Compensation Method Fuzzy Control Hierarchical Control Strategy Hierarchical Coordination Control Strategy Initial Power Sharing Stage Invertors Islanded AC Microgrid Local Controller Power Balancing Stage Power Generation Control Power Irrational Sharing Issue Rational Sharing Reactive Power Sharing Control Secondary Power Sharing Stage Self Adjusting Control System Synchronisation Total Active Power Unbalanced Local Load
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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