Diyya Hidayah Abdul Rahman
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Diyya Hidayah Abdul Rahman
Official Name
Diyya Hidayah, Abdul Rahman
Alternative Name
Abd Rahman, Diyya Hidayah
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Scopus Author ID
58565083100

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Performance Analysis of Unipolar SPWM Inverter: Resistive load and Inductive load

2020-12-18 , Muhammad Zaid Aihsan , Ahmad Muhyiddin Yusof , Nur Irwany Ahmad , Mohd Saifizi Saidon , Habibah Mokhtaruddin , Diyya Hidayah Abdul Rahman , Wan Azani Wan Mustafa

This paper presents the performance analysis of the Unipolar SPWM Inverter for the resistive and inductive load testing. The common criteria reported in various technical papers where the resistive load will produce a unity power factor correction and lagging power factor behaviour for inductive load. This paper is to demonstrate the performance of both loads that are tested to the single phase Unipolar SPWM inverter under the modulation ratio of 0.8. The performances will be covered in term of the waveform behavior and THDv performance. The project are carried out through the simulation using PSIM software and real implementation to the real hardware. The selection of filter for this paper is the low pass passive LC filter.

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Water-Based Energy Production Using PI Controller

2022-01-01 , Ali N.I.H.M. , Nur Irwany Ahmad , Muhammad Zaid Aihsan , Diyya Hidayah Abdul Rahman , Mohamad Shukor Abdul Rahim , Nurhafiza Azizan , Mokhtarddin H. , Jalaludin B.M. , Zaidi A.A.H. , Saleh A.

Malaysia is now heading for usage of renewable energy in daily use. Nowadays, solar technologies already provide energy for heat, light, hot water, and electricity for businesses and industries. Besides, Malaysia blessed with abundance of water sources and receive high rain volume per year which can be used to generate power. In Malaysia, the ambient temperature is approximately 27 ℃ but it depends on the different location. Different location has different temperature regarding to its different environment. Even though the peak sun hour in Malaysia is 5 to 7 hours per day, the ambient temperature from 32.2 to 35 ℃, can be consider as high temperature. The Standard Test Condition (STC) of solar photovoltaic (PV) is 25 ℃. Therefore, if temperature higher than 25 ℃ is used, it will drop the efficiency of solar PV. To overcome this problem, a new concept of energy production using hybrid system of piezoelectric and peltier generator prototype is developed. In this research, a buck boost converter using Proportional Integrated (PI) controller is designed to boost the output and maintain it in the range of output needed from the harvesting system, which is 12 V. MATLAB software is used to design and simulate the circuit. Hence, the performance of water-based prototype has been evaluated and analyzed based on voltage, current and the power produced by the prototype.

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Development of savonius vertical windmill with charging system

2022-01-01 , Halim N.A.W.A. , Diyya Hidayah Abdul Rahman , Ahmad N.I. , Habibah H.M. , Norhanisa Kimpol , Nurhafiza Azizan , Ahmad Zaidi Abdullah , Nur Zawatil Zakaria

The goal of the project is to achieve an output voltage at range 1 V until 13 V. In recent years, the use of small- scale green energy technologies has grown exponentially. This further highlights the need for innovation in this area, especially for small-scale applications. Global warming results from carbon dioxide gas accumulation in the atmosphere and the depletion of the ozone layer and carbon dioxide emissions from fossil fuels. To get the clean energy sources are not only an alternative to a finite supply of fossil fuels but also a way of helping to mitigate the harm that have been caused. Researchers around the world are looking into cheaper, renewable, and more reliable sources of energy which is wind turbine to produce kinetic energy and transformed into electrical energy. Usually the size of wind turbine was larger and heavy. Therefore, this research aims to design the Savonius vertical windmill with a charging system that displays the desired output. This research used SolidWorks software to design the blade and generator part and using Arduino software to control the charger circuit. The outcomes investigation result from Savonius vertical windmill affordable to produce output voltage of 2.33 V.

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