NDLI: A cascade voltage controller for three-phase islanded microgrids

Content Provider	IEEE Xplore Digital Library
Author	Bahrani, B. Rufer, A.
Copyright Year	2013
Description	Author affiliation: Ind. Electron. Lab., Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland (Bahrani, B.; Rufer, A.)
Abstract	This paper proposes a cascade or multiloop digital control strategy for the voltage regulation of a three-phase islanded single distributed generation (DG) unit microgrid and its dedicated load. The cascade control strategy consists of an inner dq-currents control loop and an outer dq-voltages control loop responsible for providing the set-points of the inner loop. To design the outer loop, a constrained optimization-based loop shaping method is adopted. It uses multi-input multi-output (MIMO) nonparametric or spectral models of the system for an arbitrary number of desired operating points along with a linearly parameterized MIMO controller to form a set of open-loop transfer function matrices. Minimizing the summation of the second norm of the errors between the open-loop transfer function matrices and a desired one, the coefficients of the controller are optimally determined. Taking several load change scenarios, the performance of the proposed controller is evaluated based on time-domain simulation studies in MATLAB/PLECS.
Sponsorship	IEEE Power Energy Soc.
Starting Page	1
Ending Page	6
File Size	1377735
Page Count	6
File Format	PDF
ISBN	9781479913039
ISSN	19449925
DOI	10.1109/PESMG.2013.6673060
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-21
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voltage control Microgrids Load modeling Transfer functions Frequency control MIMO Optimization Voltage Source Converter Cascade Control Convex Optimization Distributed Generation Islanded Mode Loop Shaping Microgrid Multiloop Control Voltage Regulation
Content Type	Text
Resource Type	Article

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