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International Journal of Smart Grid and Sustainable Energy Technologies
Published by Institut Teknologi Nasional Malang
ISSN : 25809121     EISSN : 2580779X     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy
International Journal of Smart Grid and Sustainable Energy Technologies (IJSGSET) is an international journal dedicated to the latest research advancements in the area of electrical engineering. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of Electrical Engineering.
Arjuna Subject : -
Articles 44 Documents
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Improvement of Static Voltage Stability of 16-Bus Bali System by Optimal Placement of SVC Ni Putu Agustini; I Made Wartana; Abraham Lomi
International Journal of Smart Grid and Sustainable Energy Technologies Vol 4 No 1 (2021): IJSGSET
Publisher : Department of Electrical Engineering, Institut Teknologi Nasional Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/ijsgset.v4i1.3902

Abstract

In a power system, the reactive power imbalance is related to the stability of the static voltage because the injection of reactive power that the bus receives from the system determines the bus's capability in the system. Rapid increases in real and reactive power losses occur as the system approaches the voltage drop point or the maximum load point. It is necessary to support local and adequate reactive power to avoid system leading to be voltage collapse. This study analyzes the improvement of the margin of static voltage stability using one type of modern control equipment of shunt flexible AC transmission system (FACTS), namely the static var compensator (SVC). The controller's representations are used in the continuation power flow (CPF) process to study static voltage stability. The proposed method's effectiveness has been investigated using a practical test system, namely the Bali 16-bus system, to increase the system loading capacity. The simulation was carried out by installing a modern controller in the best location, namely on bus 07 ASARI; an increase in system margin loading closed to 2% compared to the base case condition, namely λmax = 1,879 p.u with the voltage profile not changing significantly.
Dynamic Simulation and Optimization of an Off-grid Solar Photovoltaic Driven Drinking Fountain with Battery Storage Roberta P. S. Souza; Luis G. G. K. Gesteira; Antonio G. S. Almeida
International Journal of Smart Grid and Sustainable Energy Technologies Vol 4 No 1 (2021): IJSGSET
Publisher : Department of Electrical Engineering, Institut Teknologi Nasional Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/ijsgset.v4i1.3903

Abstract

This paper presents a case study involving the design and energy saving analysis of an off-grid solar photovoltaic driven drinking fountain with battery storage. A dynamic simulation in TRNSYS software is performed to model and evaluate the transient processes occurring in this renewable system. A sensitivity analysis of the main design parameters, power generation capacity and electric storage capacity, was performed in order to optimize the scheme. The case study was carried out at Federal Institute of Education, Science and Technology of Bahia in Salvador, in the northeast of Brazil. The temperature profiles and electrical energy flows of the optimized system are investigated by means of a daily, weekly and yearly analysis. The outcomes achieved show that the optimized system showed a 33.3% increase in thermal efficiency and 15.1 % increase in the global efficiency in relation to the base case. This system was able to produce 5932.7 L of chilled water per year and a 65626.8 Wh reduction of primary energy consumption per year. This study can be applied to universities, schools or places with large flow of people.
An Analytical Approach in Calculation of the inductance of Single-Phase Asynchronous Motors. Rusdy Hartungi; Luis Gomez- Agustina; Zhihui Ye
International Journal of Smart Grid and Sustainable Energy Technologies Vol 4 No 1 (2021): IJSGSET
Publisher : Department of Electrical Engineering, Institut Teknologi Nasional Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/ijsgset.v4i1.3904

Abstract

In optimizing design of the iron core, it is essential to know the magnetic field of the coil outside the core to get the leakage inductance, because the leakage inductance in this area usually provides high contribution to the flux density in the iron core. In this paper, an analytical solution as an alternative to three-dimensional FEM (finite element method) to calculate the field outside the iron core by solving analytical equation using MathCAD is presented. The analytical method provides results that are close to result given by three-dimensional FEM, but with the great advantage of dramatically reduced computing time.
A Python-Based Interface Design for Electric Power System Education. Yousef Marwan Alkhanafseh; Tahir Cetin Akinci
International Journal of Smart Grid and Sustainable Energy Technologies Vol 4 No 1 (2021): IJSGSET
Publisher : Department of Electrical Engineering, Institut Teknologi Nasional Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/ijsgset.v4i1.3905

Abstract

Python, which is widely used today, is one of the open-source programming languages. In the Python program, its interface is done through the PyQt5 library. With PyQt5, it is possible to develop object-based software that takes up less space on the disk and runs faster. In this study, an educational calculation and analysis program (ITUPSA) was designed for the Electric power systems course using the Python interface. Electric power systems are one of the fundamental courses in electrical engineering. This main course is taught in three sub-course groups as energy transmission-distribution, energy flow and energy economy. The energy transmission-distribution course package constitutes the first and most comprehensive part of the electric power systems group. In the energy transmission-distribution, the creation of the transmission line model and the calculation of the line parameters form an important part of the training. This section contains very detailed mathematical calculations and it is very important that students get the correct result as a result of these calculations. This can be possible with a lot of practice. The interface design was made by students and faculty to teach practical examples correctly. This developed (ITUPSA) python-based interface program is very suitable for calculation and analysis exercises in both undergraduate and graduate courses in the Electrical Engineering department. The purpose of this study is to create a python-based interface in order to solve the problems related to these lines, to make the types of short, medium and long power transmission lines correct and understandable. In the study, after selecting the type of energy transmission line and all parameters related to the line, the necessary mathematical analysis can be made and also the analysis results can be plotted. The analysis program is available in two languages, English and Turkish.

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