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Impact of scaled fitness functions on a floating-point genetic algorithm to optimise the operation of standalone microgrids
Journal article   Peer reviewed

Impact of scaled fitness functions on a floating-point genetic algorithm to optimise the operation of standalone microgrids

M. Batool, F. Shahnia and S.M. Islam
IET Renewable Power Generation, Vol.13(8), pp.1280-1290
2019
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Abstract

Standalone hybrid remote area power systems, also known as microgrids (MGs), can provide reasonably priced electricity in geographically isolated and the edge of grid locations for their operators. To achieve the reliable operation of MGs, whilst consuming minimal fossil fuels and maximising the penetration of renewables, the voltage and frequency should be maintained within acceptable limits. This can be accomplished by solving an optimisation problem. Floating-point genetic algorithm (FP-GA) is a heuristic technique that has a proven track record of effectively identifying the optimal solutions. However, in addition to needing appropriate operators, the solver needs a fitness function to yield the most optimal control variables. In this study, a suitable fitness function is formulated, by including the operational, interruption and technical costs, which are then solved with an FP-GA, with different combinations of operators. The developed fitness function and the considered operators are tested for the non-linear optimisation problem of a 38-bus MG. Detailed discussions are provided on the impact, which different operators have upon the outcomes of the fitness function.

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UN Sustainable Development Goals (SDGs)

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#7 Affordable and Clean Energy

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Collaboration types
Domestic collaboration
Citation topics
4 Electrical Engineering, Electronics & Computer Science
4.18 Power Systems & Electric Vehicles
4.18.204 Smart Grid Optimization
Web Of Science research areas
Energy & Fuels
Engineering, Electrical & Electronic
Green & Sustainable Science & Technology
ESI research areas
Engineering
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