Real-time optimal power flow solution for wind farm integrated power system using evolutionary programming algorithm

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ORIGINAL PAPER

Real‑time optimal power flow solution for wind farm integrated power system using evolutionary programming algorithm S. Ida Evangeline1 · P. Rathika2 Received: 28 April 2020 / Revised: 11 August 2020 / Accepted: 1 September 2020 © Islamic Azad University (IAU) 2020

Abstract In order to satisfy the increasing demand for electricity, a huge burden is levied on the conventional coal-fired thermal power generation units, which affects the environment and human health adversely. To tackle this problem, the clean renewable sources of energy have gained more attention. With time, wind power is expected to contribute more significantly and should be used as much as possible. This has provided much focus to the wind farm integrated power system. But, the unsteady behavior of wind energy has made the operation of wind farm integrated power system more complex. Scenario generation methods are used for tackling the unsteady behavior of wind energy. A persistence method of scenario generation is proposed for solving real-time optimal power flow problem in wind farm integrated power system. The proposed persistence method performs better compared to other recent methods in the literature. Keywords  Evolutionary programming algorithm · Forecasting · Optimal power flow · Power system · Wind farm

Introduction Nowadays, the global economy is growing rapidly. Hence, the need for energy is increasing tremendously, mainly in developing countries. Due to the use of fossil fuels, the atmospheric pollution increases resulting in progressively erratic and unpredictable climatic effects, which lead to the greenhouse effect. The over-utilization of fossil fuel leads to global climate change rapidly due to the carbon emissions to the atmosphere. Due to these reasons, the world looks out for renewable energy sources for energy generation. Wind energy has taken the top spot in the present situation just because of its pollution-free nature, and it encourages to develop wind farm integrated power network. The use of wind energy in the past few decades has expanded considerably. So as to amplify the utilization of Editorial responsibility: U.W. Tang. * S. Ida Evangeline [email protected] 1



Department of Electrical and Electronics Engineering, Alagappa Chettiar Government College of Engineering and Technology, Karaikudi, Tamilnadu, India



Department of Electrical and Electronics Engineering, V V College of Engineering, Tisaiyanvilai, Tamilnadu, India

2

the quick improvement in the technologies of wind energy, researchers are expected to consider the effect of wind energy penetration on existing energy networks. The integration of wind farms with traditional thermal generators changes the operation and control strategies of power systems. Classical operation methodologies need to be changed. Several technical problems also emerge while incorporating wind power in a power network. The unsteady nature of the wind energy creates an unbalancing in the power network during transmission, which leads to some undesirable loss t

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