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Contact Name
Yudhi Ardiyanto
Contact Email
yudhi.ardiyanto@umy.ac.id
Phone
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Journal Mail Official
ramadoni@umy.ac.id
Editorial Address
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Location
Kab. bantul,
Daerah istimewa yogyakarta
INDONESIA
Journal of Electrical Technology UMY
ISSN : 25501186     EISSN : 25806823     DOI : 10.18196/jet
The Journal of Electrical Technology UMY (JET-UMY) is a peer-reviewed journal that publishes original theoretical and applied papers on all aspects of Electrical, Electronics, and Computer Engineering.
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Articles 5 Documents
Search results for , issue "Vol 1, No 4 (2017)" : 5 Documents clear
Adaptive Modelling of Multipath Communication Channels Based on the Least Mean Square Algorithm Dhimas Arief Dharmawan
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1423

Abstract

The objective of this research is to design an adaptive model for multipaths communication channels. To evaluate the performance of the model, the authors used two indicators, namely the attainment of a minimum value of error signals in the form of interface and echo on the channel, and Filter Finite Impulse Response (FIR) has the same form of equation as the channel equation used. This adaptation process uses the Least Mean Square (LMS) algorithm. The LMS algorithm is known as a simple algorithm, which is fast computation time and the computation results are quite satisfying. In this study, the authors used Simulink software on Matlab. In general, this research is divided into three stages, namely modeling multipaths communication channels as an adaptive system, designing an adaptive system model on Simulink, and designing a simulation of 250 iterations. After obtaining the simulation results in the form of errors and weight of the FIR filter, it is observed that both of the results have met the requirements of the indicators of the success of this study. With 250 iterations used, satisfactory results were obtained in the form of the fulfillment of all indicators of the success of this study.
Potentials of Organic Waste Conversion in a Green Campus Concept Mujaahid, Faaris; Fauzi, Argi Mochamad; Syahputra, Ramadoni; Putra, Karisma Trinanda; Purwanto, Kunnu
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1424

Abstract

Development of waste-to-energy plant is regarded as one of a solution to reduce fossil energy dependency and switch to another alternative energy sources, thus needs to be implemented immediately. Research on the potential of organic waste by taking case studies at UMY green campus program can be an illustration that in the future UMY can process this potential into an alternative renewable energy. This research was conducted by studying waste management and data collection methods, such as field observations, discussions with related parties about the waste cycle, and calculations with the concept of gasification. Calculation of biomass produced by organic waste is then supplied to the motor generator for electricity production. Annually, 31.8 tons of organic waste could produce 7.9 kiloliters of biomass and channel it to the power plant system for generating electricity energy as much as 5.3 MWh per year. This number equals to the electricity supply of five small-housing in Indonesian typical house.
Analysis of Steam Power Generators in Fulfilling Electricity Needs: A Case Study at PT Madubaru Yogyakarta, Indonesia Danis Dwi Istiawan; Ramadoni Syahputra; Karisma Trinanda Putra
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1425

Abstract

This research was conducted to find out the amount of power produced by steam power generators and the amount of power needed for the operation of production motors in PT Madubaru Yogyakarta. This study also discusses the factors that support and inhibit the fulfillment of electric power in PT Madubaru Yogyakarta. From the results of the analysis that has been done, it can be seen that the power generated by the steam power generator at PT Madubaru Yogyakarta can meet the electricity needs of production motors in the factory. The power generated by the three steam generators at PT Madubaru amounts to 3,000 KW, while the power needed for the operation of production motors at the Milling Station, the Ketel Station, Central Factory Station, and Rear Factory Station is 2,313.54 KW. However, the production motor does not always turn on simultaneously, so the power needed is between 1,500 KW to 2,000 KW. The remaining power is used to anticipate an increase in electricity load.
Analysis of the Potential of Renewable Energy in South Sulawesi as Power Electrical Needs Mochammad Apriyadi Hadi Sirad
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1426

Abstract

Abstract - The use of electric energy in Indonesia continue to experience the increase, especially in South Sulawesi. Electric power demand will grow by achieving average 6.5% per year until the year 2022. In this case the researchers refer to the law 30 of 2007 about energy. Renewable energy potential which exists in South Sulawesi very potential so that needs to be held for research potential. This study was carried out in several districts with priority the potential of renewable energy sources is micro hydro energy, solar energy. Research results show that the potential of renewable energy, solar energy has the greatest potential, namely Sun shines of 337 mwe, with the highest temperature i.e. 95.5 ° c, Ph = 8-9 that is located in the Selayar potentially to develop solar power plant where the average energy of the solar electricity produced amounted to 2,450 units.   
Power Transformer Loading Analysis in Order to Improve the Reliability of a Substation Syahputra, Ramadoni; Arrozak, Loudy Fajar
Journal of Electrical Technology UMY Vol 1, No 4 (2017)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jet.1422

Abstract

This paper presents the power transformer loading analysis in order to improve the reliability of a substation. The substation that was the location of the study was the 150/20 KV Kentungan Substation, Sleman, Yogyakarta Special Region. Power transformers are the most important electrical equipment in a substation. The power transformer functions as a provider of electrical energy that has been transmitted from the power plant to then be channeled to electricity loads. In its operational it is very important to know the capacity and capacity of power transformers in serving electric loads for decades to come, with the aim that the electric power service can take place well. Therefore, the forecasting of the power transformer is important to know in the framework of the operational planning of a good substation. The results of the study indicate that the peak load of power transformers in the period 2014 to 2016 is still in a safe level, where the maximum peak load is 93% of the total capacity of the transformer. However, it is recommended that the power transformer capacity be planned to begin to anticipate the growth of loads in the coming years.

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