Isaac Scientific Publishing

International Journal of Power and Energy Research

Optimal Thermal Unit Commitment Scheme by Including Renewable Energy Sources and Pumped Hydro Energy Storage: Case Study of Niamey Power System, Niger

Download PDF (1264.2 KB) PP. 25 - 41 Pub. Date: April 1, 2018

DOI: 10.22606/ijper.2018.22001

Author(s)

  • Issoufou Tahirou Halidou*
    Electrical and Electronics Engineering Department, University of the Ryukyus, Okinawa, Japan
  • Mohamed Elsayed Lotfy
    Electrical and Electronics Engineering Department, University of the Ryukyus, Okinawa, Japan;Electrical Power and Machines Department, Zagzig Universty, Egypt
  • Atsushi Yona
    Electrical and Electronics Engineering Department, University of the Ryukyus, Okinawa, Japan
  • Tomonobu Senjyu
    Electrical and Electronics Engineering Department, University of the Ryukyus, Okinawa, Japan
  • Abdoul Aziz Ibrahim
    Department of Niamey Power Distribution, Nigerien Society of Electricity, Niamey, Niger

Abstract

This paper presents a novel real multi-objective approach for thermal unit commitment (UC) problem solution in Niamey (Niger). The proposed methodology consists of four conventional thermal generating units and imported power from a neighboring country in addition to future inclusion of Photovoltaic (PV) power, Wind Turbine Generators (WTGs), and Pumped Hydro Energy Storage (PHES). Minimization of total daily operating cost and decreasing the maximum daily mismatch between load demand and generation are considered as two objective functions in two cases. In the first case, UC with thermal units considering the imported power (IMP), PV and PHES is determined. In the second case, WTGs are introduced and the IMP is removed in order to get rid of its economical and political problems. "-MOGA (epsilon Multi-Objective Genetic Algorithm) is used to obtain an optimal unit commitment problem solution with consideration of PV, WTGs and PHES. The effectiveness and robustness of the proposed scheme is verified by numerical simulations using MATLAB environment.

Keywords

Unit Commitment (UC), Photovoltaic Power (PV), Wind Turbine Generators (WTG), Pumped Hydro Energy Storage (PHES), "-MOGA.

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