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In this paper, a systematic, scalable small-signal modelling approach for microgrids is described. First, each subsystem is modelled separately, and then all are interfaced using Simulink Control Design Toolbox. The main advantage of this method is its practicality, as analytical models of whole microgrids are derived systematically and easily. A real(More)
Distributed generation with a high penetration of renewable energies has been presented as an alternative for traditional centralized power plants. This distributed generation can be managed by means of microgrids. The microgrid concept can be extended to commercial and residential buildings, where there exist growing opportunities in energy saving and(More)
A simple and effective modelling approach of the electrical grid and implementation in Hardware in the Loop (HIL) device is presented in this paper. A low-frequency reduced-order modelling approach has been followed, which reduces dramatically the computational requirements and implementation complexity in comparison to an equivalent full grid model, and(More)
This paper describes the several operating modes of a Commercial and Industrial (C&I) building microgrid that allows for seamless transition between the grid connected and the islanded modes. The microgrid described in this paper is composed of a diesel generator, a Li-Ion battery system and electrical loads. The Li-Ion battery system is interfaced with(More)
This paper details the development of a microgrid test set-up for the purposes of performing electrical system emulation such as load emulation and the emulation of generation equipment such as PV arrays. This test rig is comprised of two 15 kW dc-ac inverters connected in back to back configuration together with a rapid prototyping platform utilizing a(More)
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