Abstract
This paper proposes a strategy for performance improvement of small-scale wind turbine systems using maximum power point tracking control (MPPT). In this study, wind-turbine systems which use permanent magnet synchronous generators and converter devices are modeled in Simulink-Matlab software. In order to increase the power generated, MPPT is used based on the extended perturb and observe (PO) method. This algorithm has the ability to improve the speed of the turbine without oscillation. To analyze the ability of the PO-based MPPT in maximizing output power, performance examination of wind turbine systems in Simulink-Matlab software was conducted. The study is carried out with a 3000 W wind turbine device serving various electrical loads of 50 Ω, 100 Ω, 200 Ω, and 300 Ω, and each ohm varies with a wind speed of 4, 5, 6.5, 7, 8.5, 9, and 10 m/s. The overall turbine system performance found that the maximum increase in system output power occurs when it is loaded with 200 Ω with a wind speed of 6.5 m/s. During this combination of 200 Ω and 6.5 m/s, there are high increments of output power at 135.62% caused by the installation of MPPT controllers, with an average output power increase of 50.77%. The results of this study proved that PO-based MPPT has successfully improved the performance of wind-turbine systems.
Highlights
Due to energy issues related to potential, inventory, technology, and environmental impacts, the necessity for renewable energy has become increasingly urgent
System rectifier ensures that the alternating current (AC) electrical voltage is transformed into direct current (DC) electrical current
The turbine converts wind into mechanical energy, the permanent magnet synchronous generators (PMSG) transforms the mechanical energy into electricity, and the rectifier ensures that the AC electrical voltage is transformed into DC electrical current
Summary
Due to energy issues related to potential, inventory, technology, and environmental impacts, the necessity for renewable energy has become increasingly urgent. This fact is attributed to the easy availability of fossil energy and its proven negative impact on the environment [1]. As a tropical country, has paid serious attention to renewable energy [2], with the government creating a goal of deriving 23% of national electricity from renewable energy sources by 2025. This contribution will be increased to 31% by 2050. Wind is one of the most readily available renewable energy sources in Indonesia, most prevalently on the southern coast of Java and Sumatra
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