ELKHA : Jurnal Teknik Elektro
The ELKHA publishes high-quality scientific journals related to Electrical and Computer Engineering and is associated with FORTEI (Forum Pendidikan Tinggi Teknik Elektro Indonesia / Indonesian Electrical Engineering Higher Education Forum). The scope of this journal covers the theory development, design and applications on Automatic Control, Electronics, Power and Energy Systems, Telecommunication, Informatics, and Industrial Engineering.
Articles
302 Documents
<![CDATA[Effects of Power Allocation and User Mobility on Non-Orthogonal Multiple Access Using Successive Interference Cancellation ]]>
<![CDATA[Niamah, Khoirun]]>;
<![CDATA[Larasati, Solichah]]>;
<![CDATA[Jannah, Raudhatul]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v13i1.41708
<![CDATA[This research based on simulation to show impact of the power allocation on Non-Orthogonal Multiple Access (NOMA) using Successive Interference Cancellation (SIC). NOMA used superposition code (SC) on the transmitter and SIC on the receiver. NOMA has two categories power domain (PD) and code domain (CD). This research based on PD-NOMA simulated for downlink. The number of users who use the same recourse block are divided into two conditions: user with apply SIC and without SIC base on the value of channel gain from each user. Applying SC on the transmitter and SIC on the receiver will cancel of interference. Novelties of this research are the best performance of power allocation and user mobility based on parameter BER and SNR. Allocation of the power transmit based on value of channel gain every user, where user with value of channel gain is low will be allocated high power transmit, and otherwise. The best result performance of BER vs SNR used ratio power transmit 0.45 dB:0.55 dB, BER get value SNR for 17 dB and 18 dB. The best performance SNR for mobility of user with speed = 40 km/h value SNR 18 dB for BER . This research has proposed to show impact of power transmit and interference in performance NOMA.]]>
<![CDATA[Electrical Conductivity of Conducting Polymer Composites based on Conducting Polymer/Natural Cellulose ]]>
<![CDATA[Sitorus, Berlian]]>;
<![CDATA[Malino, Mariana B]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v13i1.46048
<![CDATA[Merging each of the best properties of components into a composite design or hybrid architecture opens up opportunities to develop electroconductive materials as conducting polymer composite. This work deals with studying the electrical conductivity of conducting polymer composites made of cellulose extracted from two biomass: empty fruit bunch from oil palm and peat soil. Two kinds of conducting polymers have been used to fabricate the composites, i.e. polyaniline and polypyrrole, which are polymerized from their monomers, aniline and pyrrole. The novelty of this research is the using of biomass as the source of cellulose to produced conducting polymer composites by adding conducting polymer as filler into polymer matrix. We report experimental studies about the influence of monomer addition on the electrical conductivity of composites produced. The conductivity of the material was measured by using the Electrochemical Impedance System method. The experiments were carried out as a four-set experiment, using two different cellulose sources, EFB and peat soil, combined with aniline and pyrrole. The mass ratio variations of the monomer: cellulose are 1, 2, 3, and 4. The conductivities of the composites increased when more aniline or pyrrole was blended with the extracted cellulose from each source, either EFB or peat soil. The conductivity of composite PANI/EFB, which is 3.5 ´10-3 - 1.1 ´10-2 S/cm, is in the semiconductor range that makes the composites useful for many applications.]]>
<![CDATA[Design of Mazzilli’s Zero Voltage Switching (ZVS) Circuit as Plasma Glow Discharge Generator ]]>
<![CDATA[Anisah Muthi’ah]]>;
<![CDATA[Amien Rahardjo]]>;
<![CDATA[Faiz Husnayain]]>;
<![CDATA[Chairul Hudaya]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 12 No. 2 October 2020 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v12i2.41769
<![CDATA[Purification water has several methods; one of them is the plasma generation. The circuit used to generate plasma is Zero Voltage Switching (ZVS), where its use uses the resonance circuit concept. The main category to generate plasma glow discharge is the circuit should generate high voltage output with a current range from 10-6 A to 1 A. In this study, when ZVS connected to the flyback converter with an input voltage of 12 V, the output values of 11 kV and 11 μA were obtained. In comparison, if ZVS was not connected to the flyback converter, the circuit is less stable, and the output value is weak because the output values only reach 8.97 kV and 8.97 μA. For maximum output, the ZVS circuit should be connected to the converter circuit due to the flyback converter can repair and strengthen the voltage. The flyback converter circuit is affected by the diode and capacitance effects. The effect of using capacitors in a flyback converter circuit is when the capacitance is too low, the ripple will form. Then when capacitance reaches a specific value, the ripple will decrease, and the voltage graph will approach a straight line. Hence the use of components in the ZVS and the flyback converter need to be considered because it affects how the release of plasma glow discharge will form.]]>
<![CDATA[Penentuan Mutu Buah Pepaya California (Carica Papaya L.) Menggunakan Fuzzy Mamdani ]]>
<![CDATA[Al Rivan, Muhammad Ezar]]>;
<![CDATA[Suherman, Jessica]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 12 No. 2 October 2020 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v12i2.41164
<![CDATA[Papaya (Carica papaya, L.) is a fruit that has good nutritional content for health so that it has a high selling value and is made a business commodity. One variety of papaya fruit that is currently favored by all people, namely the California papaya fruit. Determination of the quality of California papaya fruit can be measured by size, color, and defect. This study raises the topic of determining the quality of California papaya fruit using fuzzy-Mamdani with input variables in the form of major axis, minor axis, red, green, and defect variables along with the output in the form of the results of determining the quality of California papaya fruit. Based on testing that has been done using 108 fuzzy rules, the validity of the results obtained states that the level of accuracy of the research using defuzzification of the Centroid, Bisector and Means of Maximum methods by 75%, while the level of research accuracy using the defuzzification of Largest of Maximum and Smallest of Maximum methods by 70%]]>
<![CDATA[Design of a Fuel Sensor Noise Reduction System Using Kalman Filter ]]>
<![CDATA[Putra, Rico Bernando]]>;
<![CDATA[Agoes, Suhartati]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v13i1.44589
<![CDATA[In the field of transportation, telematics is used to obtain vehicle information using Global Positioning System (GPS) technology which is integrated with sensors so that vehicle information can be monitored. One of them is fuel monitoring. The fuel sensor has good accuracy in stationary conditions, but the tability of the data is disturbed when the vehicle is running on an uneven road and causes the tank to shake. This study discusses a fuel sensor noise reduction system using a Kalman filter to overcome the problem of data instability due to shocks. This research aims to reduce noise so that the filter results are closer to the actual result. Filtering is done by changing the process error covariance (Q) and measurement error (R) in the Kalman filter. The fuel sensor noise is simulated using a simulator tank driven by an actuator that can tilt towards the x-axis and the y-axis to resemble the behavior of a vehicle. The fuel level data from the sensor readings are sent by GPS via the cellular network to a server which is then filtered using a web application. From the test results obtained the best filter with (Q) equals 0.1^3 and (R) equals 0.1^3. The average error of the best filter results is 4.73% where this value is 1.92% smaller than the average error of sensor data before filtering, which is 6.65%. Therefore, this proves that the system can reduce noise that occurs in the fuel sensor with the Kalman filter.]]>
<![CDATA[Analysis of Battery Management Algorithms on DC Microgrids ]]>
<![CDATA[Nugroho, Vendi Ardianto]]>;
<![CDATA[Wardana, Awang Noor Indra]]>;
<![CDATA[Suroso, Dwi Joko]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v13i1.42728
<![CDATA[Management of battery at direct current (DC) microgrids is the essential factor to maintain the balance of power and the bus voltage's stability in the grids. To ensure the quality of battery management is necessary to simulate the operation of the battery management system. This paper presents the simulations in various battery management algorithms. The simulations were designed to determine the effect of these variations on the balance of the power balance, bus voltage stability, and battery consumption level. The configurations of one, two, and three battery groups could maintain a balance of power balance. The three arrangements could ensure the bus voltage stability at a value of 24 Volts. The variations in the battery group configurations cause different battery consumption levels. The three-battery group configuration has a lower power consumption rate of 0.1% than other battery group configurations. Variations in the battery management algorithms affect power balance, bus voltage stability, and battery electricity consumption. The result showed the best power balance achieved by an algorithm without counting a value-based state of charge (SoC). The algorithm also committed that the difference between the supply and demand equal to 0 Watts. For the voltage stability, the algorithms that were counting a value-based SoC can maintain bus voltage stability at a value of 24 Volts. Nevertheless, other algorithms that rely on less than one SoC value-based and have the lowest mean value of SoC reduction are equal to 0.19%.]]>
<![CDATA[ANALISA SIFAT MEKANIK PENGARUH VARIASI PERENDAMAN DAN PENEKANAN PADA KOMPOSIT BERBAHAN SERAT BUNDUNG ]]>
<![CDATA[sutrisno, sutrisno]]>;
<![CDATA[Azmal, Azmal]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 12 No. 2 October 2020 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v12i2.40917
<![CDATA[This study aims to determine the effect of mechanical properties of impact, bending and tensile of bundle fiber composites with 5% NaOH variation of immersion time 0.5 hours, 1 hour and 1.5 hours. Then the blending and casting process is carried out to form a composite material with 20% fiber and 80% resin binder with a catalyst content of 1% and pressurized with press variations of 5 kg, 10 kg and 15 kg. The results of the blending and casting process are made according to the testing standard and then testing the mechanical properties. Impact, bending and tensile strength test results showed that immersion of 0.5 hours with 15 Kg concentration produced the highest value, namely Impact strength 94.89 J / mm2, bending strength 17.77 N / mm2 and tensile strength 27 N / mm2. Whereas the fracture form of the composite is the binding and fiber breaking evenly at the same point and the fiber is not pulled from the metric.]]>
<![CDATA[Performance Test of Three-Phase Brushless Direct Current Motor Axial Flux with Different Diameter of Neodymium Type Permanent Magnet ]]>
<![CDATA[Nurmalia, Alif]]>;
<![CDATA[Hadi, Widyono]]>;
<![CDATA[Cahyadi, Widya]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 13 No. 1 April 2021 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v13i1.41693
<![CDATA[Technology that is growing rapidly and innovations that have sprung up in the electrical field today are driving the use of electricity as a source of energy to do work. Electric motor is one component that is very popular in the industrial world and households that are useful to human life. In addition to DC motors and induction motors, there are also 3 phase brushless direct current (BLDC) motors which are a type of synchronous motor where magnetic fields are produced by rotor and stator at the same frequency. The rotor is a moving part of the brushless direct current motor which is a place of permanent magnet called a pole. This paper discusses the performance of brushless direct current 3 phase axial flux motors with different diameters of neodymium type permanent magnets. Tests carried out using neodymium permanent magnets with diameters of 15mm x 2mm and 20mm x 2mm were tested without using a load and using load. The parameters used in testing motor performance include speed, torque, and motor power with a source voltage of 12V, 16V, 20V, and 24V. The test results shows that the speed value of a BLDC motor using permanent magnets with a size of 20mm x 2mm is greater than that of permanent magnets of 15mm x 2mm. The same thing applies to the value of the power produced while, for the value of torque when the motor uses a permanent magnet of 15mm x 2mm will be greater than that of a motor using a permanent magnet of 20mm x 2mm. ]]>
<![CDATA[Interconnection Study of a 3 MWp Solar Farm on 20 kV Distribution System Considering Power Flow and Short Circuit ]]>
<![CDATA[Nadyanti Larasati]]>;
<![CDATA[Amien Rahardjo]]>;
<![CDATA[Hanindito Titah Prameswara]]>;
<![CDATA[Faiz Husnayain]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 12 No. 2 October 2020 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v12i2.41598
<![CDATA[Currently, renewable energy is under review so that its use can be more widespread in the future. One of the renewable energy sources that are commonly used is solar energy through solar cell technology that can convert solar energy into electrical energy and then becomes one of the components that makes up the solar power plant. The use of the solar power plant can be interconnected with distribution networks in electric power systems, both medium-voltage networks and low voltage networks. In this study, a 3 MWp capacity of solar power plant was conducted with the medium-voltage network system of X City. This interconnection study consisted of power flow and short circuit studies using ETAP 12.6.0 software. The results of the power flow study show the voltage level of each bus has increased by 0.293%-0.926% after interconnection with the solar power plant system, with a value that still matches the SPLN 1:1978 standard of 90% to 105%. Besides, the results of short circuit study show the value of the three-phase short circuit fault current experienced a change in value that is not too significant, with an increase of 1-37 A and a decrease of 1-5 A, with a value that is still according to the protection component rating standard of 25 kA.]]>
<![CDATA[Perancangan Sistem Pendingin Photovoltaic dengan Memanfaatkan Kontroler Water Spray ]]>
<![CDATA[abdullah - alhaddad]]>;
<![CDATA[Muhammad Abdurrahman Hafidhuddien]]>;
<![CDATA[Ant Ardath Kristi]]>;
<![CDATA[Noviadi Arief Rachman]]>;
<![CDATA[Bambang - Susanto]]>;
<![CDATA[Agus - Risdiyanto]]>;
<![CDATA[Agus - Junaedi]]>
<![CDATA[ ELKHA : Jurnal Teknik Elektro Vol. 12 No. 2 October 2020 ]]>
Publisher : <![CDATA[Faculty of Engineering, Universitas Tanjungpura ]]>
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DOI: 10.26418/elkha.v12i2.39647
<![CDATA[Temperature is one of the parameters other than radiation that can affect the performance of photovoltaic (PV) in relation to the output power and efficiency. This paper discusses the design of the PV cooling system using waters pray that controlled automatically. The temperature of the PV on the sensor as input to the controller and the output is the switch settings to turn on/off the pump in spraying water to the surface of the PV panel with the intention that the PV is always maintained at normal temperatures. The system was tested simultaneously on 4 PV panels @ 100Wp by involving PV without a cooling system with the same capacity during the day and the result was compared. Based on the results of PV temperature measurements in relation to the output power shows that PV with a cooling system generates higher output power than PV without a cooling system. By taking into account the involvement of power consumed by the cooling system consists of a controller and pump, the efficiency of PV rises slightly to 1.07 times.]]>
