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The development of a controller for PV and wind energy for Angolan power transmission network
Author(s)
Catraio, Adão Francisco
Date Issued
2024
Type
Thesis
Publisher
Cape Peninsula University of Technology
Abstract
The power transmission network is responsible for transporting the electrical energy from generating plants to different substations. Electrical energy has become extremely important in this current world. Companies, churches, schools, and households need more electricity to satisfy their daily needs. The increase in load demand causes several challenges to the power transmission networks. Therefore it is evident that there is a need to introduce renewables into traditional power systems to mitigate this continuous increase in load demand. However, some issues come with the introduction of renewables into traditional power systems. The output power for renewable energy such as wind and solar energy systems depends on many factors such as solar irradiance, temperature, wind speed, geographical location, air density, swept area, wind turbine configurations, and many other factors. These factors are responsible for the inconsistency and variability of the wind and solar energy systems. Therefore, it is important to develop an efficient controller that can operate in different systems such as solar and wind energy systems to maintain a stable power and continuous flow of electricity. Various controllers can be used for the renewable energy system such as Unified power flow controller, Unified Interphase Power Controller, Radial basis function (RFB) network-based single Maximum Power Point Tracking controller, Thyristor Controlled-Interphase Power Controller, or Interphase Power Controller. However, this research, focused on the Fuzzy Logic Controllers based Maximum power point tracking (MPPT) to obtain a stable output power and also to mitigate the instability of the system. This project covered the detailed development of a controller for renewable energy for the Angolan power network through the use of MATLAB/SIMULINK software. The proposed controller developed in this project was introduced into a PV system which significantly increased the performance of that PV system by enabling the PV grid to generate 30MW and also to maintain the power network stability. The proposed controller was also able to ensure that the additional voltage supplied by the PV system to the network was within the standard voltage allowable limits to keep a safe and stable operating of the system.
Additional information
Thesis (MEng (Electrical Engineering (Smart Grid)))--Cape Peninsula University of Technology, 2024
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Catraio, AF_221432353.pdf
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3.58 MB
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Adobe PDF
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