Optimizing Operation Indices Considering Different Types of Distributed Generation in Microgrid Applications

The need for independent power generation has increased in recent years, especially with the growing demand in microgrid systems. In a microgrid with several generations of different types and with all kinds of loads of variable nature, an optimal power balance in the system has to be achieved. This...

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Bibliographic Details
Published in:Energies (Basel) 2018-04, Vol.11 (4), p.894
Main Authors: Ghanbari, Niloofar, Mokhtari, Hossein, Bhattacharya, Subhashish
Format: Article
Language:English
Subjects:
Algorithms
Computer engineering
Costs
Distributed generation
distributed generation (DG)
Energy
Generators
load profile
optimal placement
Optimization
Radial distribution
Seasons
Stress concentration
time-varying loads
Turbines
Wind power
Wind speed
wind turbine
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Summary:The need for independent power generation has increased in recent years, especially with the growing demand in microgrid systems. In a microgrid with several generations of different types and with all kinds of loads of variable nature, an optimal power balance in the system has to be achieved. This optimal objective, which results in minimal energy losses over a specific period of time, requires an optimal location and sizing of the distributed generations (DGs) in a microgrid. This paper proposes a new optimization method in which both optimal location of the DGs and their generation profile according to the load demand profile as well as the type of DG are determined during the life time of the DGs. The types of DGs that are considered in this paper are diesel generators and wind turbine. The method is based on simultaneously minimizing the cost of the investment and operation of the DGs, the cost of power delivered by the the external grid as well as the cost of power losses in the network. The proposed method is tested on the IEEE standard radial distribution network considering time-varying loads and the wind speed every hour of a day.
ISSN:1996-1073
1996-1073
DOI:10.3390/en11040894