NDLI: Distributed control design to regulate grid frequency and reduce drivetrain stress in wind systems using battery storage

Content Provider	IEEE Xplore Digital Library
Author	Baone, C.A. DeMarco, C.L.
Copyright Year	2012
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Univ. of Wisconsin-Madison, Madison, WI, USA (Baone, C.A.; DeMarco, C.L.)
Abstract	Control designs to facilitate increased utilization of wind powered electric generation face challenges from two directions. From the “system” perspective of the grid, increased wind penetration carries responsibility for greater participation in grid frequency regulation, a function historically provided by traditional synchronous generators. From the “component” perspective of the individual turbine, requirements for long mechanical life and low maintenance translate to a need for control imposing low stress on the drivetrain/gearbox. Recent literature has tended to treat these two separately, while the work here proposes and analyzes a distributed control design that jointly addresses both. To achieve the required flexibility, available actuation is assumed to be augmented by modest amounts of controllable power from battery storage, along with industry-standard power controls at the wind turbines themselves (i.e., the new control design focus is on the batteries, to supplement standard, existing controls on wind turbines). Novel features of the methodology include: (i) adoption of an “exosystem” state model representing wind speed disturbances; (ii) assurance that actuators remain within saturation limits for modeled disturbances (e.g., batteries within their maximum power capability); (iii) use of a modest number of phasor unit measurements at the distributed controllers to enhance observability in relevant modal subspaces.
Sponsorship	IEEE Control Syst. Soc.
Starting Page	1368
Ending Page	1375
File Size	642997
Page Count	8
File Format	PDF
ISBN	9781457710957
ISSN	07431619
e-ISBN	9781457710964
e-ISBN	9781467321020
DOI	10.1109/ACC.2012.6315217
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-27
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Wind turbines Generators Mathematical model Wind power generation Equations Actuators Power system stability
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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