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Performance Guaranteed Inertia Emulation for Diesel-wind System Feed Microgrid Via Model Reference Control

by Yichen Zhang, Alexander Melin, Seddik M Djouadi, Mohammed M Olama
Publication Type
Conference Paper
Book Title
Proceedings of the Eighth Conference on Innovative Smart Grid Technologies (ISGT 2017)
Publication Date
Page Numbers
1 to 5
Publisher Location
New York, New York, United States of America
Conference Name
IEEE Conference on Innovative Smart Grid Technologies (ISGT)
Conference Location
Washington DC, District of Columbia, United States of America
Conference Sponsor
Conference Date

In this paper, a model reference control based inertia emulation strategy is proposed. Desired inertia can be precisely emulated through this control strategy so that guaranteed performance is ensured. A typical frequency response model with parametrical inertia is set to be the reference model. A measurement at a specific location delivers the information of disturbance acting on the diesel-wind system to the reference model. The objective is for the speed of the diesel-wind system to track the reference model. Since active power variation is dominantly governed by mechanical dynamics and modes, only mechanical dynamics and states, i.e., a swing-engine-governor system plus a reduced-order wind turbine generator, are involved in the feedback control design. The controller is implemented in a three-phase diesel-wind system feed microgrid. The results show exact synthetic inertia is emulated, leading to guaranteed performance and safety bounds.