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All Journal Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Journal of Renewable Energy and Smart Device
Sri Agustina
Sriwijaya University
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Comparative Analysis of a Rectifier Performance in Power Generation Applications Sri Agustina; Herlina Wahab; Djulil Amri; Al Denton Mourzade
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa dan Inovasi Volume 6 Nomor 1 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i1.5807

Abstract

Electrical energy's significance is critical to human life, as seen by the rising usage of this resource. Electricity-consuming machinery and technology are developing at an accelerating rate. A substantial electrical power supply is required to achieve these requirements. An effective method to address this issue is to use a generator set powered by an electric motor. This generator necessitates the use of a converter, which serves the purpose of transforming alternating waves (AC) into direct waves (DC), generally referred to as a rectifier. The rectifier's unsatisfactory performance necessitates the need for this research, which seeks to develop and construct a rectifier and subsequently compare its performance utilizing two distinct current sources. Rectifier performance is obtained through the utilization of direct computation and measuring methods. Two sources charge the battery: direct current from the motor and alternating current from the power grid. According to the test results, the converter using an electric power plant source had a higher current value. On the generator, the battery charges up to 13.4 volts in 55 minutes, which is 5 minutes quicker than on the PLN source.
Comparative Analysis of a Rectifier Performance in Power Generation Applications Sri Agustina; Herlina Wahab; Djulil Amri; Al Denton Mourzade
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Volume 6 Nomor 1 Tahun 2024
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/asiimetrik.v6i1.5807

Abstract

Electrical energy's significance is critical to human life, as seen by the rising usage of this resource. Electricity-consuming machinery and technology are developing at an accelerating rate. A substantial electrical power supply is required to achieve these requirements. An effective method to address this issue is to use a generator set powered by an electric motor. This generator necessitates the use of a converter, which serves the purpose of transforming alternating waves (AC) into direct waves (DC), generally referred to as a rectifier. The rectifier's unsatisfactory performance necessitates the need for this research, which seeks to develop and construct a rectifier and subsequently compare its performance utilizing two distinct current sources. Rectifier performance is obtained through the utilization of direct computation and measuring methods. Two sources charge the battery: direct current from the motor and alternating current from the power grid. According to the test results, the converter using an electric power plant source had a higher current value. On the generator, the battery charges up to 13.4 volts in 55 minutes, which is 5 minutes quicker than on the PLN source.
Segmented Load Profile Development for Renewable Energy Integration in an Educational Building Herlina Wahab; Sri Agustina; Hermawati
Journal of Renewable Energy and Smart Device Vol. 4 No. 1 August 2026
Publisher : PT. Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/joresd.v4i1.1202

Abstract

Educational buildings contain loads with different operating schedules; therefore, an aggregated demand curve can obscure the contributions of cooling, lighting, and other equipment. This study developed segmented electricity demand profiles for the Electrical Engineering Building at Universitas Sriwijaya, Inderalaya Campus, Indonesia. The profiles were reconstructed from connected load records, panel data, equipment ratings, and assumed operating schedules because continuous smart meter measurements were unavailable. The demand was decomposed into lighting, air conditioning (AC), other working-hour loads, and total building load. A representative 24-hour profile was repeated to form a synthetic 8,760-hour series for subsequent renewable energy simulations. The daily energy, peak demand, average load, load factor, end-use share, daytime and nighttime load ratios, peak concentration, load duration, internal arithmetic consistency, and AC operation sensitivity were evaluated. The synthetic total demand was 602.8 kWh/day, with a peak load of 83.925 kW and a load factor of 0.299. The peak is retained to three decimals solely to preserve arithmetic consistency with the component ratings and does not imply measurement accuracy. Repeating the representative day for 365 days yielded 220,022 kWh/year, whereas an illustrative calendar with 260 working days and year-round terrace lighting yielded 157,400 kWh/year. AC accounted for 53.91% of the daily energy. The daytime load ratio reached 98.94%, indicating that the assumed demand schedule was concentrated during the potential photovoltaic generation hours. The 24-hour and 8,760-hour series are provided as supplementary files. These profiles are schedule-based planning inputs and should not be interpreted as time-series demand.
Co-Authors Al Denton Mourzade Djulil Amri Herlina Wahab Hermawati