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Identify and Locating the Faults in the Photovoltaic Array Using Neural Network Pratama, Gigih Surya Adi; Hadi Suharyanto, Hendik Eko; Arif, Yahya Chusna
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jnte.v10n2.910.2021

Abstract

In making the PV array system work optimally without a hitch, it is important to recognize and know where the fault occurs. The current and voltage represent the conditions of a PV array, so that, in this paper, the proposed method is based on the current and voltage values for each string, four identified conditions, namely free fault conditions, partial shading, short circuit and open circuit. Neural network is used as a tool for predicting the type and location of faults, fault samples are obtained from simulations through PSIM and the learning process is carried out through MATLAB/Simulink, the algorithms used in the learning process are also compared to see which are the best. As a result, neural network was able to identify the type and location of faults on the PV array. This proves that the condition of a PV array can be explained through its voltage and current values.Keyword: PV array, partial shading, short circuit, open circuit, neural network
RANCANG BANGUN DYNAMIC VOLTAGE RESTORER (DVR) GUNA MENGURANGI TEGANGAN SAG DENGAN KENDALI LOGIKA FUZZY BERBASIS MIKROKONTROLER Deriz Caesar Okinanto; Indhana Sudiharto; Yahya Chusna Arif
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2015): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 6 2015
Publisher : Prosiding SNST Fakultas Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Gangguan tegangan sag dapat merugikan hingga tujuh kali lipat dibandingkan dengankerugian yang timbul gangguan kualitas daya lainnya. Untuk meminimalisir gangguantegangan sag, maka didesain suatu sistem Dynamic Voltage Restorer. Prinsip kerja DynamicVoltage Restorer (DVR) yaitu mendeteksi tegangan sag menggunakan sensor tegangan ACdengan menggunakan metode pembagi tegangan 2 kapasitor dengan resistansi 330kΩ dan220Ω, kemudian di klamper sehingga tegangan menjadi DC. Sensor tegangan terhubungdengan ADC pada mikrokontroler ARM STM32F407VG yang digunakan untuk mengontrolinjeksi tegangan. Ketika terjadi tegangan sag, maka inverter menginjeksi tegangan DC darisumber kapasitor ke beban yang terkena gangguan dengan menggunakan boostertransformator yang dihubung seri dengan tegangan sumber dan beban induktif. Inverter 1 fasadikendalikan menggunakan logika fuzzy berbasis mikrokontroler untuk mendeteksi magnitudetegangan sag.Kata kunci: Dynamic Voltage Restorer, Fuzzy logic controller, Single Phase Inverter.
Identify and Locating the Faults in the Photovoltaic Array Using Neural Network Gigih Surya Adi Pratama; Hendik Eko Hadi Suharyanto; Yahya Chusna Arif
JURNAL NASIONAL TEKNIK ELEKTRO Vol 10, No 2: July 2021
Publisher : Jurusan Teknik Elektro Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (633.979 KB) | DOI: 10.25077/jnte.v10n2.910.2021

Abstract

In making the PV array system work optimally without a hitch, it is important to recognize and know where the fault occurs. The current and voltage represent the conditions of a PV array, so that, in this paper, the proposed method is based on the current and voltage values for each string, four identified conditions, namely free fault conditions, partial shading, short circuit and open circuit. Neural network is used as a tool for predicting the type and location of faults, fault samples are obtained from simulations through PSIM and the learning process is carried out through MATLAB/Simulink, the algorithms used in the learning process are also compared to see which are the best. As a result, neural network was able to identify the type and location of faults on the PV array. This proves that the condition of a PV array can be explained through its voltage and current values.Keyword: PV array, partial shading, short circuit, open circuit, neural network
Optimizing the Use of MPPT in PLTS for Hybrid Systems by Using STS as a Transfer Switch Azmil Anil Yamin Fajrus Sodiq; Renny Rakhmawati; Yahya Chusna Arif
JEEMECS (Journal of Electrical Engineering, Mechatronic and Computer Science) Vol 4, No 2 (2021): August 2021
Publisher : Merdeka Malang University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jeemecs.v4i2.6004

Abstract

To save energy nowadays is recommended to switch to renewable energy sources. In Indonesia, solar energy is abundant, so PLTS is made. The supply of PLTS is expected to reach maximum use. However, solar panels have many obstacles such as variations in temperature and sunlight intensity, MPPT systems are needed to find the maximum power point of the solar panels. Unfortunately, in Indonesia, the sunlight of short duration with the ideal irradiation time that can produce electricity from solar panels is 4 to 5 hours per day, so a PLN supply is still needed to support the continuity of the power supply. Because two sources are used, there is a problem where the load needs high continuity during power switching, so STS (Static Transfer Switch) is used for very fast power switching. Simulation results, when using EMR (Electromechanical Relay) the power transfer process takes 50ms or 5 cycles while STS takes 2ms or ¼ cycles. With very fast response to STS, sensitive equipment is kept safe from power quality disturbances such as voltage sag and voltage swell.
Performance Comparison of PI Control and Fuzzy Logic for Speed Control of DC Shunt Motor Using Matlab / Simulink Jehan Aliyya; Yahya Chusna Arif; Ony Asrarul Qudsi
JAREE (Journal on Advanced Research in Electrical Engineering) Vol 4, No 2 (2020): October
Publisher : Department of Electrical Engineering ITS and FORTEI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25796216.v4.i2.151

Abstract

DC motor speed regulation is an important role in the industrial process so it can run easily and efficiently. A good DC motor speed control system must have a fast and accurate response. However, it is rare to find a DC motor that has controlled to get a constant speed. This research presents an analytical comparison of PI controller and Fuzzy Logic Controller for Speed Control of DC Shunt Motor. The disadvantages of PI controller like it do not operate properly when the system has a high degree of load disturbances [1]. FLC is a good for load disturbances and can be easily implemented. The simulation of both speed controller have been made by Matlab Simulink software.Keywords: DC shunt motor, fuzzy logic control, matlab, PI control, simulink.
Monitoring and Control Design of Automatic Transfer Switch-Automatic Main Failure with Human Machine Interface (HMI) Khafidzati 'Ulya; Yahya Chusna Arif; Lucky Pradigta Setiya Raharja
Jurnal Ilmiah Teknik Elektro Komputer dan Informatika Vol 8, No 3 (2022): September
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26555/jiteki.v8i3.23750

Abstract

Automatic transfer switch-Automatic main failure is a commonly used technology for shifting supply from PLN to a generator in the case of a PLN blackout. The ATS-AMF module system frequently employs a PLC, which comes at a high cost, and the system alarm information only is seen by the user close to the system. The purpose of this research is to design an automatic transfer switch-automatic main failure system that used SCADA to improve the reliability of electricity supply by providing notification alarm information and buzzers. This research contribution is a development of an automatic transfer switch-automatic main failure, which can be used as a simulator for studies on measuring voltage, current, power, and frequency of main power supply in real cases. Furthermore, this instrument is used fuel level and temperature measures for its backup power (Genset), the result of measures will be monitored SCADA system with the available failure data, alarm logs, and status logs recorded in historical data, which is designed at a low cost and is easy to use. This information result of the measured sensor will be transferred in real-time to the SCADA system, so can be directly obtained for analysis. The main components for this system are microcontroller STM32 Nucleo, PZEM 004T sensor, ultrasonic sensor, DS18B20 sensor, ethernet, and VTSCADA. The result of this system is the temperature detects 89oC, and alarm information has been sounded with the statement “Genset Temperature Warning HIGH” thus instructing the generator to turn off the system. Meanwhile, based on the results of the fuel adjustment test, SCADA gives the information “Genset Fuel Level Warning LOW” when setting the fuel at 36%. The data historical viewer that stores up to 6 months and alarm information for the warning system on the SCADA has been successfully designed.
Rancang Bangun Elektronik Motor Relay sebagai Proteksi Berbagai Gangguan Motor Listrik Resi Dwi Jayanti Kartika Sari; Yahya Chusna Arief; Suryono Suryono
JASIEK (Jurnal Aplikasi Sains, Informasi, Elektronika dan Komputer) Vol 4, No 2 (2022): DESEMBER 2022
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jasiek.v4i2.8921

Abstract

The protection system against disturbances in induction motors has an important role in industry. In general, protection in electrical installations only uses MCB (Miniature Circuit Breaker) and fuses which can only protect against overcurrent and short circuits and there are still many kinds of important protection that have not been covered in it even though along with technological developments many electronic protection devices have been created. The purpose of this final project is to plan and manufacture electronic motor relays against over load, phase loss, phase reverse, phase unbalance, short circuit, ground fault, and locked rotor disturbances. The AVR microcontroller is used as a controller for all systems in detecting disturbances. Where the current setting range and trip time are programmed using the C language which is operated with a keypad and displayed on the LCD. As current and voltage sensing using current transformers and voltage transformers. As for sensing phase reverse, it takes the signal from the differential amplifier and forwards it to zero crossing, trigger and X-or. Testing the accuracy of the electronic motor relay is carried out in each fault. The data obtained shows that the microcontroller can be used as a precision analog voltage controller. This is because the AVR microcontroller has good features and is supported by adequate processor speed for use in this kind of application.
Perbandingan Respon Kecepatan dan Torsi Pada Pengaturan Kecepatan Motor Induksi 3 Fasa Menggunakan Metode Vector Control dan Scalar Control Moch Ridwan Nuur; Yahya Chusna Arif; Ony Asrarul Qudsi
Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems) Vol. 16 No. 2 (2022)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jeeccis.v16i2.684

Abstract

Pengaturan kecepatan motor induksi tiga fasa sangat diperlukan pada aspek industri.Ada dua jenis metode yang umum digunakan untuk mengatur kecepatan motor induksi,yaitu vector control dan scalar control.Scalar control yang digunakan pada jurnal ini adalah metode v/f konstan dan vector control dengan metode field oriented control (FOC).Dengan karakteristik motor induksi yang torsi dan kecepatannya tidak linier,maka kedua metode digunakan untuk mengoptimalkan torsi dan kecepatan yang dihasilkan motor induksi.Kedua metode tersebut perlu diaplikasikan melalui inverter tiga fasa untuk mengatur motor induksi tiga fasa tersebut melalui teknik switching SPWM atau SVPWM.Untuk mencapai respon optimal digunakan sebuah kontroler dengan jenis PI kontroler.Sehingga kedua metode dapat dibandingkan kecepatannya dalam mengatur kecepatan dan torsi motor induksi tiga fasa untuk berbagai keperluan.
Implementation Of Hybrid Filter For Harmonics Reduction In Non-Linear Loads Yahya Chusna Arif
Eduvest - Journal of Universal Studies Vol. 3 No. 2 (2023): Journal Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (356.414 KB) | DOI: 10.59188/eduvest.v3i2.751

Abstract

The efficiency of electrical power can be improved by improving power quality. Installing capacitor banks is one way to improve power quality by improving the power factor. On the other hand, the use of non-linear loads is increasing. This load produces a non-sinusoidal waveform which causes harmonics to appear in the electric power system. Harmonic problems will become a serious problem in the power system when there is a capacitor bank in the system which will cause resonance risk at the harmonic frequencies. This resonance problem can be solved by installing a detuned filter. Detuned filters can reduce harmonics and protect the system from the resonance risk. However, the detuned filter installation is not sufficient to reduce all harmonics that generated by non-linear loads, so the system needs to be equipped with an active filter. In this study, using a combination of 14% detuned filter and active filter, each of which is attached parallel to the load. The result of power quality improvement can increase the power factor from 0.6 to 0.88, THDi is reduced from 49.5% to 18%, and THDv is reduced from 2.18% to 1.97% after installing the hybrid filter
Pengaturan Suhu Ruangan Oven Pengering Cat Panel Box menggunakan Logika Kontrol Fuzzy YAHYA CHUSNA ARIF; RACHMA PRILIAN EVININGSIH; AVIE ALIA WIDYANTO
Jurnal Elkomika Vol 11, No 2 (2023): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v11i2.364

Abstract

ABSTRAKPengontrolan suhu adalah proses yang sering digunakan dalam pemakaian seharihari. Diantaranya adalah pengontrolan suhu pada proses pengeringan cat menggunakan teknik oven atau pengering paksa. Pada penelitian ini pengontrolan suhu digunakan untuk proses pengeringan cat pada plat panel listrik dengan cara membuat suhu stabil pada 60ºC selama 30 menit. Untuk mempertahankan suhu pada ruangan mesin oven cat sebesar 60ºC tersebut, maka kinerja dari elektrik heater sebagai sumber panas dikontrol menggunakan AC-AC konverter dengan metode logika kontrol fuzzy. Hasil yang diperoleh adalah suhu dalam ruangan mesin oven cat bisa mencapai set point 60ºC selama waktu 5 menit 13 detik dan suhu bisa dipertahankan 61ºC dengan persentase error sebesar 1,67%. Konstruksi oven dalam penelitian ini digunakan pada bengkel pengecatan panel sehingga tidak lagi tergantung menggunakan panas matahari atau menggunakan kondisi suhu luar ruangan.Kata kunci: Mesin Oven Cat, Sensor Suhu, Panel Box, Logika Kontrol Fuzzy ABSTRACTTemperature control is a process that is often used in everyday use. Among them is temperature control in the paint drying process using oven or forced drying techniques. In this study, temperature control was used for the drying process of paint on electrical panel plates by making the temperature stable at 60ºC for 30 minutes. To maintain the temperature in the paint oven machine room at 60ºC, the performance of the electric heater as a heat source is controlled using an AC-AC Converter with the Fuzzy Logic Control method. The results obtained are that the temperature in the paint oven machine room can reach a set point of 60ºC for 5 minutes 13 seconds and the temperature can be maintained at 61ºC with an error percentage of 1.67%. The construction of the oven in this study was used in a panel painting workshop so that it is no longer dependent on using solar heat or using outdoor temperature conditions.Keywords: Paint Booth, Temperatur Sensor, Panel Box, Fuzzy Logic Control