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Journal : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

Rancang Bangun Saklar Pemindah Otomatis Berpenggerak Motor Stepper Variable Reluctance Dengan Pengendali Mikrokontroler ATMega8535 Syafarudin, Firman; Anto, Budhi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Electricity supply from PLN network is not always continually available, there could be a blackout at any time. To anticipate such outages, it is necessary to design an automatic transfer switch between the main power source and the backup power. Therefore, it is necessary to develop the automatic transfer switch equipment, where mechanically formed by cam-switch which is driven directly by variable reluctance stepper motor with microcontroller ATMega8535. Automatic mode of operation is determined by stepper motor controlled by microcontroller ATMega8535 while manual mode is done by using grip handle attached to the rotor axis of variable reluctance stepper motor. The determination electricity supply of genset and PLN conditions is determined tolerance of ± 20% from 220 VAC standard voltage of PLN, this condition becomes the basis for moving the stepper variable reluctance motor with the angle-step position -300 for the supply of PLN (I) and +300 angle for generator (II) to move Cam-switch to supply the load. The testing design has done with the following result i.e. the variable reluctance stepper motor will rotate if fullfilled the 20% of tolerance to achieve for the uninterruptible load supply. The transition will take affect within 5 s.Keywords: Automatic transfer switch, Microcontroller ATMega8535, Variable reluctance stepper motor.
Pemodelan Dan Simulasi Battery Charger Berbasis Push-Pull Converter Menggunakan Matlab-Simulink Padang, Muhammad Ulfy Syafe’i; Anto, Budhi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Battery is an alternative energy source and it is important for energy storage. Battery is often used as energy reserves but the energy in the battery is not able to maintain for longer time. Therefore the battery need to be recharged. This paper proposed a push-pull converter design which is supplied by PLN. In the push-pull converter design the output voltage is constantly in 14.1 volt value with the current of 2.16 ampere. The battery type that being used is sealed lead acid (SLA) which has a capacityof 7.2 Ah with a nominal voltage of 12 volt. The system was designed using MATLAB-Simulink software. The result of simulation shows in three scenarios in example the output of converter when the input fluctuation condition, the load of converter when the input steady state condition, then it connect to battery for charging purpose output of converter already in stable condition.Keywords : Push-pull Converter, Sealed Lead Acid Battery, MATLAB-Simulink
Pemodelan Dan Simulasi Transformator Pada Kondisi Open-Circuit Pada Salah Satu Fasanya Silitonga, Horin Relevando; Anto, Budhi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The transformer is widely used for increasing and decreasing the voltage of the power system. Loading on the transformer impact the reliability of the transformer. Sometimes an interruption in the transformer that causes malfunction of transformers, which are open-circuit. This paper describes how the condition occurs in the transformer during an open-circuit. Modeling conducted to observe the characteristics of the transformer. Modeling done by modeling the iron core construction purposes 400kVA step-down transformer 20KV / 400V by using software MATLAB / Simulink R2015A. The results of this paper to show the characteristics of the transformer which indicates that there is an unbalance between voltage and current on the primary side and secondary on the transformer.Keywords : three phase transformer, open-circuit, fault, modeling, MATLAB/Simulink
Perancangan Dan Analisis Rangkaian Synchronous Boost Converter Untuk Penyalaan Lampu LED 21W Dengan Sumber Baterai 12VDC Anugrah, Aldeni Prima; Anto, Budhi
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Electronic devices efficiency is highly considered nowadays. One of the reasons caused low efficiency is power dissipation. Conventional Boost Converter has low efficiency, but there are some potentional area need to be improved. Synchronous Boost Converter is the improved method of Boost Converter to improve the Conventional Boost Converter efficiency. Design and simulation is supplied by 12VDC. 21W LED light as output consist of 21 strands of 1W LED. 21W LED light is supplied by 21VDC. Synchronous Boost Converter works in Discontinuous Conduction Mode (DCM) to generate 12VDC input to 21VDC output. Synchronous Boost Converter simulation shows 21W LED light power produces 82,22% efficiency which better 2,4207% than Conventional Boost Converter. Synchronous Boost Converter with lower frequency gives better efficiency, previous research with 30MHz produces 70-80% efficiency.Keywords: Synchronous Boost Converter, MOSFET, efficiency
Rancang Bangun Transformator Untuk Penyearah 24-Pulsa Junaidi, Junaidi; Anto, Budhi; Suwitno, Suwitno
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Multipulse rectifiers are recently used in ac-dc converter to minimize line current distortion due to harmonics. Analysis of the input and output ac-dc converter has been done with the tendency that the number of pulse rectifier most will have a value THD (total harmonic distortion) line current is the smallest and has the greatest power factor. In this study the authors will design and transformers 3-phase make with primary in delta connection and secondary in zigzag connection to produce 12 phases voltage wave, each phase of phase 150. The next phase will output 12 is connected as the input of a 24-pulse rectifier, which consists of 4 units of 3-phase rectifier bridge connection that are arranged in series. Calculation of results rectifier current THD, indicates THD 24-pulse rectifier is lower than the 6-pulse rectifier, THD 24-pulse rectifier currents of 1.41% while the 6-pulse rectifier amounted to 3.61%.Keywords : Multiphase Transformer, Multipulse rectfier, total harmonic distortion of current
Evaluasi Kualitas Pencahayaan Pada Ruang Perkuliahan Gedung C Fakultas Teknik Universitas Riau Ikhbal Havif JH; Budhi Anto
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Light illuminance in the classrooms is one of the important aspects for convenience in learning.. Poor level of illuminance can affect eye health. According to the National Standard of Indonesia SNI 03-6575-2001, the recommended illuminance level for classrooms is 250 lux. In this study measure the illuminance level at 19 classrooms of Building C Faculty of Engineering, University of Riau. From the results of measurements obtained the average illuminance in all classrooms is 123,13 lux,the highest illuminance is 141 lux at room 317 and the lowest illuminance is 103,4 lux at room 314. The average illuminance is not recommended illuminance level. Therefore the evaluation and recalculation of the number of luminaires in 19 classrooms. From the calculation result using the zonal cavity method for rooms 304, 305, 306, 307, 308, 309, 310,311,312,313,314,315, the number of luminaires required is 9 luminaires with 3 rows and 3 columns and for rooms 301, 302,303,316,317,318,319 obtained luminaire requirement of 9 luminaires 3 rows and 3 columns.Keywords: Standart illuminance in the classroom, luminaire, zonal cavity method
Design Dan Analisis Solar Battery Charger Berbasis Push-Pull Converter Hizrian Alnubli; Budhi Anto
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This research presents a design of push-pull converter used on battery charging system that is the source of her energy comes from solar pv. Solar pv was used in this research had a 150 watt maximum power with an open circuit voltage of 21.67 volts. The battery is a type of sealed lead acid (SLA) which has a capacity of 24 Ah with a nominal voltage of 12 volts. Solar pv battery fill through chargers controller is a DC-DC converter. DC-DC converter circuit type of push-pull is used to ensure the process of charging the battery so that it takes place on a secure condition even though the solar pv output voltage fluctuates with how to limit the voltage on the battery is charging of 14.1 volt. The system was designed using of Matlab-Simulink software. The results of the simulation shows the automatic setting of duty cycle which is conducted by electronic switches that triggered by the input signal as a part of PI controller. Therefore, a series of push-pull converter able to maintain the output voltage at value of 14,1 volt.Keywords : Push-Pull Converter, Sealed Lead Acid Battery, Chargers Controller, Matlab-Simulink.
Perancangan Transformator Satu Fasa Dan Tiga Fasa Menggunakan Perangkat Lunak Komputer Adhitya Franager; Budhi Anto; Dian Yayan Sukma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The transformer is widely used, both in the field of electricity and electronics. Use of the power system allows choosing the appropriate voltage and economical for each purposes. To obtain a good and satisfying design it is necessary to use computer software in design process. The design of single phase and three phase transformer with the help of computer software is intended to replace the conventional process which is done manually so as to improve the efficiency of time and energy. In this research, we use visual basic 6.0 as a program language and the golden ratio (1 : 1,618) is used as the ratio between the width and thickness of the iron coreKeywords: Transformer, Visual Basic 6.0, Golden Ratio
Pemodelan Dan Simulasi Motor Kapasitor Pada Kondisi Variable Speed Adisa Adisa; Budhi Anto
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Permanent Split Capacitor (PSC) Motor is a type of single-phase induction motor which widely used and one of circuit to run the water pump. The water pump is needed in the irrigation of agricultural land. If the location of agricultural land is not supplied with electricity grid, then the Water Pump may be driven by solar modules. This paper describes a design of power electronics system that convert DC Power from Solar Panels into AC Power for supplying the PSC Motor. The idea of this paper is to look at the speed characteristics of PSC Motor from the effect of sunlight Irradiance. The system is simulated using MATLAB-Simulink R2015a. The system driver consist of Push Pull Converter and Full Bridge Inverter type. DC voltage of the solar panel is raised to 311 V using Push Pull Converter, then the voltage is converted into AC voltage using the full bridge inverter. PSC Motor models and solar module models are using the available models in the MATLAB-Simulink R2015a library. The Motor Capacitor models is using the Single Phase Asynchronous Machine models and Capacitor of 16 μF. The Motor parameters is using the parameters that have been proposed by Hrabovcova V. The solar Modules use the MEMC Singapore MEMC-M250ACA-20. In this research, the solar panel was given the sunlight Irradiance with 5 conditions, the condition is: Irradiance 1000 W/m2, 800 W/m2, 600 W/m2, 400 W/m2, and 200 W/m2. The effect of sunlight Irradiances shows the speed characteristics of PSC motor that follows logarithmic trendline.Keywords: Solar Module, Push-Pull Converter, Full Bridge Inverter, Permanent Split Capacitor Motor, MATLAB-Simulink.
Rancang Bangun Lampu LED 12 Volt DC Dengan Rangkaian Penggerak Berbasis Topologi Flyback Yakub Jonathan; Budhi Anto; Dian Yayan Sukma
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Driving circuit function as a source of voltage to drive an electronic circuit. Source of voltage (power supply) created using the switching mode with Flyback converter topology. Component used as the switch is Mosfet. Time to live (on) and off (off) controlled by the circuit mosfet Totempole to accelerate the process on or off of the switch with a frequency of 50 kHz generated by IC SG3524. Switching mode power supply with Flyback converter topology are made to produce a constant voltage of 87 volts. Input source that will be used is lead acid batteries 12 Volt supplies 78 pieces LED.Keywords: Flyback Converter, circuit Totempole, Mosfet IR540, LED, IC SG3524, Switching Power Supply