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Abstract

Nowadays, the penetration of wind and solar sources is relatively high in Micro Grid. Wind speed and solar radiation forecasting hardly gives an exact value and leads to the values in intervals. Therefore forecasted output powers of these sources are also in the intervals. The constraint on power balance in Micro Grid has the right-hand-side uncertainty, in the interval. So for Micro-Grid in grid connection mode, the presence of the distributed generations based on wind and solar energy sources makes optimal dispatching problems of distributed generations become an uncertainty problem. The optimal solutions for the lower and upper ends of this interval are the best and the worst optimal solution. This paper proposes to treat the above problem as the optimal problem with two objectives: reach the best and the worst solution. The principle of fuzzy set and the Particle Swarm Optimization algorithm will be applied for solving the multi-objective problem. The final optimal value will belong to an interval. Meanwhile, the output power of the swing generator varies to respond to the uncertainty of wind and solar source power. An example of a low-voltage MG with three distributed generators is considered with two cases: connecting to the utility grid via the circuit breaker and via power controller.



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Article Details

Issue: Vol 3 No 1 (2020)
Page No.: 366-374
Published: Apr 9, 2020
Section: Research article
DOI: https://doi.org/10.32508/stdjet.v3i1.631

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Creative Commons License

Copyright: The Authors. This is an open access article distributed under the terms of the Creative Commons Attribution License CC-BY 4.0., which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 How to Cite
Quoc Dung, P., Thi Thanh Binh, P., Dinh Minh, P., Minh Hung, T., & Duc Hung, N. (2020). The optimal generator dispatching with uncertain conditions for grid-connected microgrid. Science & Technology Development Journal - Engineering and Technology, 3(1), 366-374. https://doi.org/https://doi.org/10.32508/stdjet.v3i1.631

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