Integrated Operation of Distributed Generation Sources and Load Responses in Microgrid

Ehsan Kianmehr¹ Mehdi payamani² mohammad pirhadi³

1) Department of Electrical Engineering, Doroud Branch, Islamic Azad University, Doroud, Iran
2) Technical and Vocational University, Mohajer technical college, Esfahan, Iran
3) Department of Electrical Engineering, Doroud Branch, Islamic Azad University, Doroud, Iran

Publication : 3rd international conference of Science and Engineering(3icesconf.com)
Abstract :
In this paper a comprehensive model for optimally operating a microgrid has been presented. By managing the demands at consumer side as well as Distributed Generation (DG) sources, in a 24 hours span, the microgrid is able to maximize its revenue through participating in energy and reserve market in this model. Here, the effect of real time electricity price for consumers is considered as an effective incentive for controlling energy demands and operation costs of microgrid. In proposed model, in addition to technical and economic limitations, security constrains of microgrid, the ability of energy transfer to and from neighboring microgrids and uncertainties in Renewable Energy Sources (RES) and consumers’ demand have also been considered. This model turns out to be a Mixed Integer Non-Linear Programming (MINLP) problem which has been solved by DICPT solver in GAMS software. Case studies on a 32 bus distribution test system shows that by applying the proposed method, in comparison with fixed electricity price tariff, the distribution company could increase the revenue of participants by modifying the consumption pattern and also operate the distributed energy sources in distribution network more efficiently.
Keywords : microgrid; distributed energy sources; energy management; demand response; real time electricity pricing.