NDLI: Real-time verification of new controller to improve small/large-signal stability and fault ride-through capability of multi-DER microgrids

Content Provider	IET Digital Library
Author	Baghaee, Hamid Reza Mirsalim, Mojtaba Gharehpetian, Gevork B.
Abstract	Decentralised control methods of voltage-source inverters-based multi-distributed energy resource (DER) microgrids and microgrids hierarchical control scheme studied in earlier researches limited to primary and secondary control levels while the proposed control scheme is completely analysed so that the three hierarchical control levels modelled for both grid-connected mode and islanded modes. In this study, the proposed hierarchical control scheme adds new control loop to control the reactive power reference by a fuzzy logic controller to have the benefit of increasing the system stability margins. In addition to the small-signal events, it maintains the stability of microgrids faced with large-signal disturbances such as short circuits, line outage, heavy motor starting etc., and improves fault ride through capability. However, power sharing to loads and network is sufficiently done. To demonstrate the effectiveness of the proposed hierarchical controller, simulation studies have been performed on a microgrid consisting of four units of distributed generation with local loads and in presence of main grid using MATLAB/SIMULINK software (offline simulations) and OPAL-RT real time digital simulator for verification.
Starting Page	3068
Ending Page	3084
Page Count	17
ISSN	17518687
Volume Number	10
e-ISSN	17518695
Issue Number	Issue 12, Sep (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-gtd/10/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2016.0315
Journal	IET Generation, Transmission & Distribution
Publisher Date	2016-09-02
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Control of Electric Power System Controller Real-time Verification Decentralised Control Decentralised Control Method Distributed Generation Distributed Power Generation Distribution Network Fault Ride-through Capability Fuzzy Control Fuzzy Logic Controller Grid-connected Mode Hierarchical Control Scheme Invertors Islanded Mode Large Signal Stability Large-signal Disturbance Line Outage MATLAB/Simulink Software Motor Starting MultiDER Microgrid Multidistributed Energy Resource Microgrid OPAL-RT Real Time Digital Simulator Power Distribution Fault Power Engineering Computing Power Generation Control Power Sharing Power System Control Power System Stability Reactive Power Control Reactive Power Reference Control Short Circuit Small Signal Stability System Stability Margin Voltage-source Inverter
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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