Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) http://journal.ubb.ac.id/index.php/ecotipe <hr> <div align="justify"><strong>The</strong>&nbsp;<strong>Jurnal Ecotipe (Electronics, Control, Telecommunications, Information, and Power Engineering)</strong>&nbsp;p-ISSN <strong><a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1395118085&amp;1&amp;&amp;" target="_blank" rel="noopener">2355-5068</a></strong>, e-ISSN <strong><a href="http://issn.pdii.lipi.go.id/issn.cgi?daftar&amp;1532676717&amp;1&amp;&amp;" target="_blank" rel="noopener">2622-4582</a></strong> is a peer-reviewed, scientific journal published by the Department of Electrical Engineering, Faculty of Engineering, Bangka Belitung University (UBB). The aim of this journal is to publish quality articles dedicated to all aspects of the latest extraordinary developments in the field of electrical engineering. The Jurnal Ecotipe was first published in April 2014 and is published twice a year (2 issues / year) every <strong>April</strong> and <strong>October</strong>.&nbsp;</div> <div align="justify"><strong>Focus and Scope :&nbsp;</strong>Electronics, Electronic Materials, Microelectronic System, Control System Engineering, Instrumentation and Control Engineering, Robotics, Telecommunication, Modulation and Signal Processing, Antenna and Wave Propagation, Information Technology,&nbsp;Information Theory and Coding, Computer Engineering and Informatics,&nbsp;Electrical and Power Engineering,&nbsp;Transmission and Distribution,&nbsp;Renewable Energy.</div> en-US <p>Submission of a manuscript implies that the submitted work has not been published before (except as part of a thesis or report, or abstract); that it is not under consideration for publication elsewhere; that its publication has been approved by all co-authors. If and when the manuscript is accepted for publication, the author(s) still hold the copyright and retain publishing rights without restrictions. Authors or others are allowed to multiply article as long as not for commercial purposes. For the new invention, authors are suggested to manage its patent before published.&nbsp;<span id="m_4863372954928520277yui_3_16_0_ym19_1_1499518718599_9240">The license type is CC-BY 4.0</span><strong id="m_4863372954928520277yui_3_16_0_ym19_1_1499518718599_9241"></strong><strong id="m_4863372954928520277yui_3_16_0_ym19_1_1499518718599_9241"></strong></p> <p><a href="http://creativecommons.org/licenses/by/4.0/" rel="license"><img src="https://i.creativecommons.org/l/by/4.0/88x31.png" alt="Creative Commons License"></a><br>Jurnal Ecotipe is licensed under a&nbsp;<a href="http://creativecommons.org/licenses/by/4.0/" rel="license">Creative Commons Attribution 4.0 International License</a>.&nbsp;</p> rudy14k@gmail.com (Rudy Kurniawan, S.T., M.T.) yonggipuriza@yahoo.com (Muhammad Yonggi Puriza, S.T., M.T.) Thu, 30 Apr 2020 00:00:00 +0000 OJS 3.1.1.2 http://blogs.law.harvard.edu/tech/rss 60 IMPROVEMENT OF PERFORMANCE OF MEN AND WOMEN'S VOICE DIFFERENCES BASED ON FREQUENCY USING FUZZY LOGIC METHOD http://journal.ubb.ac.id/index.php/ecotipe/article/view/1636 <p><em>Along with the development of technology, the technique of identification of human voices based on sex is very necessary for some parties, especially in the field of education. The main parameter in distinguishing male and female voices is the frequency of the same one-word pronunciation sample with the same duration and pressure. To facilitate this, a matlab-based male and female voice differentiator application was designed and the results will be improved by the fuzzy logic method. Based on the application testing, of the 20 human voice samples tested, there was 1 sound sample that was difficult to identify, so the accuracy level was only 95%. However, by using the fuzzy logic method, 1 sound sample can be classified in the form of female voices, so the performance of male and female voice differentiator applications increases to 100%. The final results of this study obtained a range of male voice signal frequencies 81.93 Hz to 233.3 Hz while the frequency range of female voice signals 316.9 Hz to 575.5 Hz.</em></p> <p>&nbsp;</p> Andi Sri Irtawaty, Maria Ulfah ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1636 Mon, 16 Mar 2020 02:12:54 +0000 TURBINES DESIGN FOR HIDROPOWER IN PESISIR BARAT DISTRICT LAMPUNG PROVINCE http://journal.ubb.ac.id/index.php/ecotipe/article/view/1388 <p><strong><em>Hydropower is considered to be one of important renewable energy sources. Renewable energy is the second-largest contributor to global electricity production after fossil fuel. Hydropower generation presents several advantages over most other sources of electrical power. It includes a high level of reliability, proven technology, high efficiency (about 90%), very low operating and maintenance costs, flexibility and large storage capacity. Based on the types of installation, hydropower can be categorized as; impoundment, diversion, and pump storage, and based on the turbine types can it be classified as reaction and impulse systems. Previous research gives the results of the initial survey, concluding that there are two rivers that have the potential to become a micro or mini-hydro generator. Way Laai and Way Lami.&nbsp; So, we need to know what is turbines type to suit&nbsp; both of river Way Laai and Way Lami. We used the same method with other research that used TURBNPRO software for helping in the design of Turbines. The simulation result gives one alternative to the right turbine design for Way Laai is the orientation vertical of 6 jet Pelton with a peak efficiency of 89.9%. The right alternative turbine design for Way Lami is the vertical orientation Axial turbine/ propeller design with a peak efficiency of 93.3%.</em></strong></p> Kiki Kananda ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1388 Mon, 16 Mar 2020 00:00:00 +0000 AUDIT AND ANALYSIS OF ENERGY SAVING BUILDING LIGHTING SYSTEM E AND BUILDING F AT THE CILACAP STATE POLYTECHNIC http://journal.ubb.ac.id/index.php/ecotipe/article/view/1389 <p><strong><em>The purpose of this study was to conduct a review of energy audits in the lighting systems of building E and F of the Cilacap State Polytechnic. The results of the calculation of energy audits in lighting can be used as a guideline to make efficiency in the use of electrical energy. The initial step taken in this study was to look for primary and secondary data. Primary data is obtained by making direct measurements in all building rooms E and F. Secondary data obtained from relevant agencies such as the Cilacap State Polytechnic building data; energy demand data from the Energy and Mineral Resources (ESDM) Office; and data on electricity consumption from the National Electricity Company (PLN). The data is then processed to obtain the value of Energy Use Intensity (IKE) and can also be used as a guide for carrying out measures in energy efficiency. Based on the calculation and processing of the data obtained, the energy consumption of buildings E and F is 3,259.82 kWh/month and 3,650.96 kWh/month. The results of the energy audit calculations performed on the building lighting systems E and F with a building area of ​​287 m<sup>2</sup> and 399 m<sup>2</sup> have a building IKE value of 11.37 kWh/ m<sup>2</sup>/month and 9.16 kWh/m<sup>2</sup>/month. Based on the IKE criteria index, it was found that building E and F of the State Polytechnic</em></strong><strong><em>of Cilacap</em></strong><strong><em> were included in the criteria of efficiency</em></strong>.</p> Fadhillah Hazrina, Vicky Prasetia, Afrizal Abdi Musyafiq ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1389 Tue, 17 Mar 2020 02:19:43 +0000 DESIGN OF 433MHZ YAGI ANTENNA ON AUTOMATIC ANTENNA TRACKER FOR UNMANNED AERIAL VEHICLE http://journal.ubb.ac.id/index.php/ecotipe/article/view/1390 <p><strong><em>Small Scale Mapping Sector uses UAV (Unmanned Aerial Vehicle) as a mapping tool. UAVs require wireless and long-distance communication. For this reason, an antenna with a far beam pattern and a high gain are needed. This research uses the Yagi Antenna because it has a directional beam pattern but has a weakness that is, the yagi antenna must be directed by pointing to connect the communication between the antenna and the UAV. Based on the results of the calculation and simulation of the yagi antenna with a frequency of 433 MHz, a gain of 14.2 dBi was obtained. Yagi antenna designs are made using aluminum and copper. From the results of the communication distance test, obtained a range of ± 5 km. The test is carried out by attaching the yagi antenna to the receiver of the 433 MHz telemetry module, then the transceiver module is installed in the UAV.</em></strong></p> Denny Hidayat Tri Nugroho, M. Farid Hasan ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1390 Tue, 07 Apr 2020 03:24:04 +0000 LITHIUM-ION BATTERY FAST CHARGING TECHNIQUE USING FUZZY LOGIC http://journal.ubb.ac.id/index.php/ecotipe/article/view/1384 <p><strong><em>The increasing use of portable electronic equipment uses more and more lithium-ion batteries. Issues that occur from increased use of the battery pose problems such as less capacity, long charging time, and overcharging protection. Some methods of lithium-ion battery charging techniques are commonly used such as Constan Voltage (CV), Constan Current (CC), CC-CV, and reflex charging methods. In this study the fast charging Lithium-ion battery technique uses fuzzy logic to control temperature and voltage during battery charging using the Pulse Width Modulation (PWM) Charging method, the fuzification process used Is Mamdani method with Center Of Gravity (COG) Defuzzification method. It is expected to accelerate the charging without making the battery temperature exceed the maximum limit, as well as the overcharging. The filling results using this fast charger using the fuzzy logic proved to accelerate charging and protect the occurrence of overcharging the battery.</em></strong></p> Amar Anshori, Bambang Siswojo, Rini Nur Hasanah ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1384 Tue, 28 Apr 2020 00:00:00 +0000 OPTIMAL PLACEMENT OF DISTRIBUTION GENERATION AT PUJON FEEDER BY USING PARTICLE SWARM OPTIMIZATION METHOD http://journal.ubb.ac.id/index.php/ecotipe/article/view/1650 <p><strong><em>This study proposes the use of Particle Swarm Optimization (PSO) algorithm to optimize the placement of Distributed Generation (DG) on the 20kV distribution system of Pujon feeder, which has 117 buses with the total distribution line length of 59.65 kilometers, with the aim to reduce power losses. In addition, PSO has also been used to determine the capacity of the DG. The JAYA algorithm is used as comparison. It has been proven that the proposed algorithm as well as the comparison algorithm succeeded in determining the optimum location and the capacity of DG to be installed</em></strong></p> Mas Ahmad Baihaqi, Rini Nur Hasanah, Hadi Suyono ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1650 Tue, 28 Apr 2020 00:00:00 +0000 UTILIZATION OF MATLAB TO DETERMINE SHORTEST PATH TSUNAMI EVACUATION IN THE DISTRICT OF SOUTH CILACAP http://journal.ubb.ac.id/index.php/ecotipe/article/view/1467 <p><strong><em>The South Cilacap district is one of the area in Cilacap regency with the highest population density and the most prone area of tsunami disaster. Unfortunately, most of the main roads in South Cilacap district is parallel to the coastline. This condition will slow down the evacuation of residents to safe locations. In 2006 and 2017, Cilacap regency has experienced several earthquake that have a potential of a tsunami. It caused people to panic and tended to choose the evacuation route through the main roads without considering the route became congested and resulted in total congestion. Based on these conditions, a system that contains information about the shortest evacuation route that should be taken by the residents to a safe location is needed. The shortest evacuation route is determined using MATLAB software. The simulations was creating on MATLAB, there is a starting vertexes as a starting location or location of a tsunami prone area and a finish vertexes as a destination location or a safe location from a tsunami disaster. By using MATLAB software, it can simulate the shortest path for tsunami evacuation in the South Cilacap district area along with the distance and graphic images.</em></strong></p> Sugeng Dwi Riyanto, Artdhita Fajar Pratiwi, Rostika Listyaningrum ##submission.copyrightStatement## http://creativecommons.org/licenses/by/4.0 http://journal.ubb.ac.id/index.php/ecotipe/article/view/1467 Tue, 28 Apr 2020 00:00:00 +0000