Distributed frequency control of inertia-less AC microgrids

Abstract

In this paper, we introduce a generation control architecture for microgrids that ensures stable and synchronized operation at a specific frequency. We also propose a distributed implementation of this architecture that relies on two distributed algorithms that adhere to a communication network interconnecting the controllers present at each bus. The first algorithm enables the generators to determine set-points that result in stable and synchronized operation given a known set of load bus power demands, whereas the second one enables the generators to drive their commands to the aforementioned set-points. We demonstrate our proposed controller and its distributed implementation via numerical simulations. © 2015 IEEE.