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Simulasi Kendali Daya Reaktor Nuklir dengan Teknik Kontrol Optimal Tadeus, Dista Yoel; Setiyono, Budi; Setiawan, Iwan
Transmisi Vol 12, No 1 (2010): TRANSMISI
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.693 KB) | DOI: 10.12777/transmisi.12.1.8-13

Abstract

Nuclear reactors is one of systems that have complex characteristics. To control the reactor power optimally, it needs an effective and efficient control system design. Optimal control system is designed based on the method of state feedback to provide optimum control signal based on predetermined performance index. Nuclear reactor dynamics are modeled by mathematical equations as an approach to model of real reactor. Power reactor to be controlled is modeled by a point kinetics method with one group of delay neutrons. Optimal control system design and simulation of the response of a nuclear reactor is accomplished using  MATLAB. In the Linear Quadratic Regulator (LQR) control scheme with various value of q and r, the fastest response of control system in order to regulate output of the system occur at q=0,0001 and r=20. In the LQI control scheme with various value of wo, the fastest response of the system to reach the reference occur at wo=1 where q=0,0001 and r=10. LQG control scheme with Tracking System is able to make the reactor power output to set point after the disturbance applied to system. Keyword :   Nuclear Reactor, Optimal Control, Kalman Filter
DESKRIPSI TEKNIS PENGENDALI TEMPERATUR INDUSTRI SEBAGAI BAGIAN DARI SISTEM REGULASI TEMPERATUR Tadeus, Dista Yoel; Setiono, Iman
Gema Teknologi Vol 20, No 1 (2018): April 2018 - October 2018
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.267 KB) | DOI: 10.14710/gt.v20i1.21075

Abstract

Dista Yoel Tadeus, Iman Setiono, in this paper explain that temperature regulation is one of the most important needs for the industry. Lots of processes and production are carried out under certain temperature conditions and free from interference. Industrial temperature controller is one of the basic equipment to meet these needs. On the market there are various types, specifications, and brands of temperature controllers, but have similarities with one another mainly lies in the basic functions of temperature regulation capabilities. This article describes the background of industrial temperature controllers principal, also covers control concepts, basic controller configurations, control methods, actuator equipment support, and examples of sensor parameter settings and controls on the Autonics TC4S series temperature controllers.
DESKRIPSI TEKNIS PENGENDALI TINGGI MUKA CAIRAN INDUSTRI METODE FLOATLESS OMRON 61F Tadeus, Dista Yoel; Setiono, Iman
Gema Teknologi Vol 20, No 2 (2019): October 2018 - April 2019
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.024 KB) | DOI: 10.14710/gt.v20i2.22707

Abstract

Device for controlling liquid/water level using the floatless method uses the character of liquid conductivity as an electric current carrying medium. Excitation voltage is generated by the controller and passed to the electrode through an insulated conductor cable. The electrode is submerged in a tank or liquid storage vessel and directly becomes the lower limit and upper limit of the liquid level. Omron 61F is one of the industry-standard floatless control devices that is simple, compact and relatively inexpensive and easily available on the market. Some applications for controlling liquid levels such as water supply and drainage can be done easily and simple wiring. Omron 61F provides a variety of controller types that are tailored to the application conditions and the type of liquid used, ranging from purified clean water, dirty water, salt water, to several types of acidic liquids.
HUBUNGAN ANTARA MATA KULIAH FISIKA TERAPAN DALAM KONTRIBUSINYA TERHADAP MATA KULIAH KEAHLIAN PADA MAHASISWA PROGRAM DIPLOMA III TEKNIK ELEKTRO SEKOLAH VOKASI UNIVERSITAS DIPONEGORO Setiono, Iman; Tadeus, Dista Yoel
Gema Teknologi Vol 20, No 1 (2018): April 2018 - October 2018
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (231.041 KB) | DOI: 10.14710/gt.v20i1.21076

Abstract

Iman Setiono, Dista Yoel Tadeus, in this paper explain that physics is a branch of behavior and experimental studies. In studying the nature, physics uses mathematical language to model natural phenomena in a mathematical context. In physics research, mathematical abilities are needed as student’s initial abilities in solving Physics problems. This study aims to study the relationship between courses in applied physics and courses that are the basis of developing competencies. The method used is the method of documentation and analysis using quantitative descriptive. The object of this study was students for physics subjects from student learning outcomes of student KHS grades. The results obtained from an integrated analysis provide strong results between learning outcomes and the ability of other subjects.
RANCANG BANGUN SISTEM ADMINISTRASI KERJA PRAKTEK DAN TUGAS AKHIR BERBASIS WEB MENGGUNAKAN FRAMEWORK CODEIGNITER Subari, Arkhan; Tadeus, Dista Yoel; Winarno, Heru; Yuwono, Teguh
Gema Teknologi Vol 19, No 4 (2018): October 2017 - April 2018
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (325.937 KB) | DOI: 10.14710/gt.v19i4.19147

Abstract

Information system is a set of components that interconnect, collect, process, store, and distribute information to support decision making and supervision within an organization. Today the information system can not be separated with computer technology that feels growing rapidly along with our increasingly complex needs. These developments can be seen from the many organizations or institutions in various fields that use computerized systems to perform various jobs quickly and with great accuracy. The use of computerized systems is expected to minimize errors made by humans thereby reducing large losses. And can mengefisienkan time in completing the work quickly and accurately. One concept of building a computerized information system is dengfan MVC model. Model-View-Controller (MVC) is a concept introduced by the inventor of Smalltalk (Trygve Reenskaug) to encapsulate data along with processing (model), isolate from the process of manipulation (controller) and view to be represented on a user interface . The MVC architecture has the benefit of separating between model and view allowing multiple views using the same model. As a result, an application model component is easier to implement, test, and maintain, because all access to the model runs through this component. One of the frameworks that works based on the MVC concept is Codeigniter. Codeigniter is an open source web application framework that is used to build dynamic php applications. The main purpose of Codeigniter development is to help developers to work on applications faster than writing all the code from scratch. Because of the superiority of codeigniter that the system of practical work administration and the final task is built using the framework..
REALISASI PENGENDALI ON-OFF HISTERISIS DENGAN OPERATIONAL AMPLIFIER (OP-AMP) Tadeus, Dista Yoel; Subari, Arkhan; Manan, Saiful
Gema Teknologi Vol 19, No 4 (2018): October 2017 - April 2018
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (574.573 KB) | DOI: 10.14710/gt.v19i4.19150

Abstract

The realization of the On-Off control system can be built using the comparator principle. The principle has a weakness that is the possibility of chattering due to 'thin' limit of comparator switching. Low immunity to noise increases chances of chattering, if not anticipated it will cause 'fatigue' on actuator thus reducing component’s lifetime. Hysteresis has features to suppress chattering. This article describes how to realize the hysteresis On-Off controller using Operational Amplifier (Op-Amp) which is simple and cheap discrete electronics component, by modifying the Op-Amp comparator circuit so that it has the hysteresis band with minimum and maximum limit variable so that the reference point of the comparator can be shifted.
Model Sistem Monitoring pH dan Kekeruhan pada Akuarium Air Tawar berbasis Internet of Things Tadeus, Dista Yoel; Azazi, Khasnan; Ariwibowo, Didik
METANA Vol 15, No 2 (2019): Desember 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1110.623 KB) | DOI: 10.14710/metana.v15i2.26046

Abstract

Ikan hias dan vegetasi air memiliki rentang toleransi terhadap nilai parameter lingkungan. Parameter tersebut hendaknya senantiasa diawasi demi kelangsungan hidupnya. Internet of Things (IoT) telah dimanfaatkan sebagai sistem monitoring dan otomasi parameter lingkungan ikan dan vegetasi air namun sistem ini membutuhkan biaya yang tinggi. Tujuan penelitian ini adalah mengembangkan suatu model sistem monitoring berbasis IoT berbiaya rendah untuk memberikan informasi parameter pH dan kekeruhan air setiap saat kepada pemilik ikan hias. Sistem ini dibangun menggunakan komponen opensource dan sensor berbiaya rendah. Data monitoring digunakan untuk mengaktifkan aktuator berupa filter air. Filter akan aktif apabila tingkat kekeruhan air sudah melebihi batas kekeruhan yang ditentukan. Pengujian kekeruhan air aquarium menunjukkan saat kekeruhan mencapai 3000 ntu pukul 14.12 pompa aktif dan filter bekerja sampai kekeruhan berada pada nilai 498 ntu pada pukul 17.00 dan pompa mati secara otomatis. Nilai pH dan kekeruhan air berhasil ditampilkan dengan baik di aplikasi Blynk pada ponsel. Hasil pengujian menyimpulkan bahwa sistem monitoring yang dikembangkan telah berhasil diimplementasikan dengan baik.  Ornamental fish and aquatic vegetation have a tolerance range of environmental parameter values. These parameters should always be monitored for survival. Internet of Things (IoT) has been utilized as a monitoring and automation system for environmental parameters of fish and aquatic vegetation, but this system requires high costs. The purpose of this study is to develop a low-cost IoT-based monitoring system model to provide information on pH parameters and water turbidity at any time to ornamental fish owners. This system is built using opensource components and low-cost sensors. Monitoring data is used to activate the actuator in the form of a water filter. The filter will active if the turbidity level of water has exceeded the specified turbidity limit. The aquarium water turbidity test showed that when the turbidity reached 3000 ntu at 14.12 the pump was active and the filter worked until the turbidity was at 498 ntu at 17.00 and the pump automatically shut down. The pH value and the turbidity of the water were successfully displayed in the Blynk application on the cellphone. The test results concluded that the monitoring system developed was successfully implemented. 
PENINGKATAN EFISIENSI ENERGI KIPAS SIRKULASI UDARA DI PANEL LISTRIK MELALUI PENGATURAN KECEPATAN Tadeus, Dista Yoel; Mangkusasmito, Fakhruddin
Gema Teknologi Vol 20, No 4 (2020): October 2019 - April 2020
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (243.884 KB) | DOI: 10.14710/gt.v20i4.29287

Abstract

Internal temperature of electric panel practically depend on the amount of power dissipation generated by the panel components and the outside temperature. If this equilibrium is not maintained then the internal temperature can increase too high beyond the working temperature limit for components so as to shorten the life of panel components. Generally, there are two fans installed to circulate the air inside the panel that operates at  fixed speed. In order to improve fan energy efficiency, it is necessary to add a control system that can adjust the fan speed based on actual panel internal temperature. Efforts to increase energy efficiency are realized using cheap hardware and easily available on the market, the ATMEGA 8535 microcontroller and LM 35 temperature sensor. The fan speed is normalized in percent units and expressed virtually using the Pulse Width Modulation (PWM) signal value calculated by the proportional control algorithm inside the controller. The experimental results show that the PWM value can vary with actual panel internal temperature. Using the time constant temperature asumption k1 = 0.2, k2 = 0.4, k3 = 0.2, k4 = 0.2 and experimental data, it was shown by calculations that there was an increase in energy efficiency by 40.8%.
IMPLEMENTASI IDENTIFIKASI SISTEM METODE BLACK BOX PADA MOTOR DC MENGGUNAKAN CORRELATION ANALYSIS DAN MODEL ARX Mangkusasmito, Fakhruddin; Tadeus, Dista Yoel; Subari, Arkhan
Gema Teknologi Vol 20, No 4 (2020): October 2019 - April 2020
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (608.227 KB) | DOI: 10.14710/gt.v20i4.29381

Abstract

The identification system is a procedure to obtain a model of a system, then of the model will be validated to see the accuracy of the model is obtained, compared to the input-output results obtained from the experiments. In the identification system itself known two methods, the method of "non-parametric" and "parametric". On the other hand, DC motor is a type of motor that uses direct electric current to produce rotational mechanical energy and is widely used in various applications. In this study, input and output data acquisition will be performed on the Feedback brand DC motor, and the data will be processed so that the system model is obtained by the black box method. The data will then be processed with the help of MATLAB software. The input signal used in this experiment is Pseudorandom binary sequence (PRBS), which is used because it has a wide frequency range. The signal is generated by an arduino uno microcontroller. From the test results it was found that the validation of the non parametric system model with the correlation analysis method has a fitness value of = 83.19%, while the validation of the parametric system model with the least square ARX method has a fitness value of = 80.59%.
RANCANG BANGUN SISTEM RACK IN DAN RACK OUT PMT OTOMATIS DI KUBIKEL 20 KV BERBASIS ARDUINO MEGA 2560 MENGGUNAKAN VTSCADA 11.2 Puteri, Ratna Azizah; Subari, Arkhan; Tadeus, Dista Yoel
Gema Teknologi Vol 20, No 4 (2020): October 2019 - April 2020
Publisher : Vocational School Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.755 KB) | DOI: 10.14710/gt.v20i4.29560

Abstract

The 20 KV PMT (Circuit Breaker) is an important equipment for the reliability of electricity distribution. Therefore it must be maintained so that it is always in good condition with regular maintenance. Prior to maintenance, PMT is terminated from the bus bar, which is called the rack out process. After maintenance, the PMT is reconnected with the bus bar, which is called the rack in process. Usually, 20 KV PMT rack in and rack out process in maintenance or disturbance is still using the manual method. The 20 KV PMT can only be racked in and racked out in one way, by turning the lever. The lever will rotate the bolt as a PMT rail. In the manual method, there is no system for monitoring the condition of the bus bar whether it is has electric-voltage or not. There is also no remote control that can rack in and rack out. So officers must ensure the conditions of PMT and bus bars are safe manually, before maintenance is carried out. This is quite troublesome and dangerous for officers. From these problems, in this research  designed a system that could ensure the condition of the PMT and the bus bar was safe before the rack in and rack out process was carried out and could monitor and control the system remotely using SCADA. Rack-in and rack-out automation system using VT SCADA, using Ethernet Shield that has been connected with Arduino Mega. Ethernet is connected to a mini PC. The microcontroller pins will be connected to the relays that will turn or stop the motor. The rack in and rack out commands from VT SCADA will determine the rotation of the motor so that the PMT moves. The current sensor reads the current flow and detects interference. Interference detection will automatically make PMT Rack out. System testing shows that the process of racking out in a state of maintenance or disturbance can be carried out automatically controlled by VT SCADA. Current sensor works to detect the current flowing, so that it can detect PMT interference and perform automatic rack out. The rack-in process is also capable of being remotely controlled with VT SCADA. This makes it easier for officers to also become additional reliability of PMT in the 20 KV cubicle.