Robust Control for Microgrid Frequency Deviation Reduction With Attached Storage System
Abstract— Robust Control for Microgrid Frequency Deviation Reduction With Attached Storage System. We propose a robust control strategy for reducing system frequency deviation, caused by load ﬂuctuation and renewable sources, in a smart microgrid system with attached storage. Frequency deviations are associated with renewable energy sources because of their inherent variability. In this work, we consider a microgrid where fossil fuel generators and renewable energy sources are combined with a reasonably sized, fast acting battery-based storage system. We develop robust control strategies for frequency deviation reduction, despite the presence of signiﬁcant < Final Year Projects 2016 > model uncertainties. The advantages of our approach are illustrated by comparing system frequency deviation between the proposed system (designed via µ synthesis) and the reference system which uses governors and conventional PID control to cope with load and renewable energy source transients. All the simulations are conducted in the Matlab™ and Simulink™ environment.
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