Performance Guaranteed Inertia Emulation for Diesel-Wind System Feed Microgrid via Model Reference Control
By:
Zhang, Yichen ; Melin, Alexander ; Djouadi, Seddik M; Olama, Mohammed M
Page Number:
1-5
Book Title:
Proceedings of the Eighth Conference on Innovative Smart Grid Technologies (ISGT 2017)
Publication Date:
April 2017
Publisher Location:
IEEE, 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:
IEEE
Abstract
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.
