Aris Triwiyatno
Jurusan Teknik Elektro, Universitas Diponegoro Semarang Jl. Prof. Sudharto, SH, Kampus UNDIP Tembalang, Semarang 50275, Indonesia

Published : 81 Documents
Articles

Engine Torque Control of Spark Ignition Engine using Fuzzy Gain Scheduling Triwiyatno, Aris
TELKOMNIKA Indonesian Journal of Electrical Engineering Vol 10, No 1: March 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

In the spark ignition engine system, driver convenience is very dependent on satisfying engine torque appropriate with the throttle position given by the driver. Unfortunately, sometimes the fulfillment of engine torque is not in line with fuel saving efforts. This requires the development of high performance and robust power train controllers. One way to potentially meet these performance requirements is to introduce a method of controlling engine torque using fuzzy gain scheduling. By using this method, the throttle opening commanded by the driver will be corrected by throttle correction signal that guarantees engine torque output will follow the desired engine torque input, and also reducing fuel consumption. In this case, spark ignition engine with automatic transmission is used to meet a good performance under this controller design.
Perancangan Sistem Kontrol Genetic-Fuzzy: Studi Kasus Pada Pengendalian Top And Side End Point Composition Dan Bottom Reflukstemperature Pada Distillation Column Safitri, Meilia; Triwiyatno, Aris; Wahyudi, Wahyudi
TRANSMISI Vol 14, No 3 (2012): TRANSMISI
Publisher : TRANSMISI

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Abstract

Genetic-Fuzzy Control is one of the control technique which is use to solve the non-linear problems by combinating two control methods, Fuzzy Logic Controller and Genetic Algorithm. Genetic algorithm is use to overcome the difficulties in determining the membership function parameter that can optimally work on Fuzzy Logic Controller. In this paper Genetic-Fuzzy control is used to control Shell Heavy Oil Fractionator which is mulvariable system with 3 input and 3 output. Decoupling have the function to reduce interaction between input and output that are not paired. Keyword : Genetic-Fuzzy control, distillation column, decoupling, MATLAB Simulink, Multivariable system
PEMODELAN DAN SIMULASI ROLL, PITCHDANYAW PADA QUADROTOR Saputra, Oka Danil; Triwiyatno, Aris; Setiyono, Budi
TRANSMISI Vol 14, No 4 (2012): TRANSMISI
Publisher : TRANSMISI

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Abstrak Penelitian ini fokus membahas tentang pengaruh input Roll, Pitch dan Yaw pada Quadrotor. Metode Euler-Newton digunakan untuk memodelkan persamaan dinamika Quadrotor. Pengujian pemodelan dilakukan dengan menggunakan program matlab simulink. Dari hasil perhitungan, diperoleh nilai parameter dinamika yaitu massa Quadrotor m =1,2 [Kg], momen inersia pada sumbu x IXX = 8,3 × 10-3 [N.m.s2], momen inersia pada sumbu y IYY = 8,8 × 10-3 [N.m.s2], momen inersia pada sumbu z IZZ = 15,5 × 10-3 [N.m.s2], jarak pusat Quadrotor dengan pusat baling-baling l =230 ×10-3 [m], momen inersia total sekitar sumbut motor JTP = 2,3 × 10-5 [N.m.s2], konstanta elektrik motor KE = 5,8 × 10-3 [V.s/rad] dan hambatan motor R = 41,2 × 10-3 [Ω]. Dari hasil simulasi, disimpulkan bahwa nilai output sudut (phi) ditentukan oleh nilai inputRoll, nilai output sudut (theta) ditentukan oleh nilai inputPitch dan nilai output sudut (psi) ditentukan oleh nilai input Yaw. Kata kunci: Quadrotor,Roll, Pitch, Yaw Abstract This research work focused on the study of Roll, Pitch and Yaw (Input) a Quadrotor. The Euler-Newton formalism was used to model the dynamic system. The Matlab Simulink program was developed to test the result. From the calculation result, the value of dynamic parameter were consisting mass of the Quadrotor m =1,2[Kg], body moment of inertia around the x-axis IXX = 8,3 × 10-3 [N.m.s2], body moment of inertia around the y-axis IYY = 8,8 × 10-3 [N.m.s2], body moment of inertia around the z-axis IZZ = 15,5 × 10-3 [N. m .s2], length center of propeller from center of Quadrotor l = 230 × 10-3 [m], total rotational moment of inertia around the propeller axis JTP= 2,3 × 10-5 [N.m.s2], electric motor constant KE = 5,8 × 10-3 [V.s/rad] and motor resistance R = 41,2 × 10-3 [Ω]. From the simulation result, it can be concluded that the (phi) angle was determined the Roll input, the (theta) angle was determined the Pitch input and the (psi) angle was determined the Yaw input. Keywords: Quadrotor,Roll, Pitch, Yaw
PENGENDALIAN LEVEL AIR PADA PLAN TANGKI PENAMPUNGAN SISTEM PENGOLAHAN AIR LIMBAH MENGGUNAKAN METODE KONTROL PI Nugroho Hadi, Ditya Satriya; Triwiyatno, Aris; Setiyono, Budi
TRANSMISI Vol 15, No 1 (2013): TRANSMISI
Publisher : TRANSMISI

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Abstract

Abstrak   Air limbah adalah cairan buangan dari rumah tangga, industri, maupun tempat-tempat umum lainnya yang mengandung bahan-bahan yang dapat membahayakan kehidupan manusia serta mengganggu kelestarian lingkungan. Oleh karena itu, diperlukan suatu alat untuk mengolah air dari kualitas air yang kurang bagus( limbah ) agar mendapatkan kualitas air pengolahan standart yang di inginkan, salah satunya adalah menggunakan water treatment system. Untuk membangun suatu water treatment system diperlukan beberapa tangki penampungan  yang salah satu diantaranya perlu dijaga level airnya. Pada penelitian ini telah dilakukan rancang bangun sistem pengontrolan level air pada tangki penampungan  water treatmen sistem berbasis mikrokontroler. Pengontrolan ini digunakan untuk mengetahui seberapa tinggi level air  yang ada pada tangki penampungan dan mengontrol level air pada ketinggian tertentu dengan menggunakan sensor jarak (Ping) dan pompa penghisap sebagai aktuatornya serta menampilkannya pada LCD (Liquid Crystal Display). Pengendalian dilakukan melalui metode PI Ziegler Nichols I.Dari hasil pengujian didapatkan bahwa kontrol PI dapat diaplikasikan dengan baik untuk mengontrol level air dengan menggunakan metode penalaan Ziegler Nichols. Dengan metode penalaan tersebut didapatkan parameter kontrol PI yaitu Kp = 16,1dan Ti = 13,2. Pada pengujian dengan penalaan parameter PI mampu menghasilkan tanggapan keluaran dengan rise time dan waktu penetapan yang cepat tanpa overshoot dan ketika sistem diberi gangguan,tanggapan keluaran akan tetap terjaga dalam kestabilan.  Kata kunci: Kontrol PI, Kontrol level air, Sensor Ping,Water treatment System Abstract Waste water is the liquid waste from households, industry, and other public places which contain ingredients that can endanger human life and interfere with environmental sustainability. Therefore, it is necessary a tool to manipulate the water from the water quality which is less good (waste) water quality processing in order to obtain the desired standards, one of which is using water treatment system. To build a water treatment system needed some tanks that shelter one of which needs to be taken care of its water level.At the end of this Task has been carried out the control system architecture of water level in tank water treatmen shelter microcontroller-based systems. This control is used to find out how high the water level in the tank water level and control shelter at a certain height by using the proximity sensor (Ping) and suction pumps as aktuator  and display it on the LCD (Liquid Crystal Display). Control is done through the methods of PI Ziegler Nichols I. From the test results that can be obtained by PI control is applied properly to control the water level by using the method of tuning the Ziegler Nichols. With the obtained parameters tuning method of control PI the Kp = 16, 1dan Ti = 13.2. On tuning PI parameters with testing is capable of generating a response with output rise time and the time of the assignment quickly without overshoot and when the system was given the disruption, the output response will be maintained in both. Keywords: PI Control, level control of water, Ping Sensor, Water treatment System 
Perancangan Simulasi Supervisory Control and Data Acquisition pada Prototipe Sistem Listrik Redundant Kurniawan, Muhammad Supono; Setiawan, Iwan; Triwiyatno, Aris
TRANSMISI Vol 14, No 1 (2012): TRANSMISI
Publisher : TRANSMISI

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Abstract

The existence of electrical energy to human needs can not be separated, electrical energy is used by all humans on this planet from small scale region (household) to large-scale region such as industries. The electric energy quantity and quality demand of the electricity transmission system has been increasing over the time. Failure in the electricity transmission system can be fatal to the electrical components or operational loss in an industry. SCADA is proposed to accommodate these problems. It capables to monitor and control the disturbance on the electrical redundant system. The purpose of this final project is to simulate the SCADA on redundant power system to eliminate the failure of power transmission lines such as open-circuit failure, short circuit, and overload that can be controlled directly from the plant or through a computer interface. The Finite State Machine (FSM) and ladder diagram programming language are used to design the PLC system. There are hardware and software to support this final project, such as plant of redundant electrical systems, PLC CPM1A Omron, Laptop, CX One 9.0 software for programming the PLC and the CX Supervisor 3.0 to build the HMI. The result showed that the current sensors can be used to detect overload failure and simulate short circuit failure. Plant redundant electrical system can be monitored and controlled through the input-output of the plant, the interface on the computer, and World Wide Web. There is a relay on plant that can connect power lines to cutting power lines when the failure occurs. If an failure occurs in the form of open circuit, short circuit or overload the alarm and failure indicator will active. Keyword : SCADA, PLC, open circuit, short circuit, overload
Fuzzy State Observer Design for Engine Torque Control System of Spark Ignition Engine Triwiyatno, Aris; Nuh, Mohammad; Santoso, Ari; Sutantra, I Nyoman
TRANSMISI Vol 11, No 3 (2009): TRANSMISI
Publisher : TRANSMISI

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Abstract

The T-S (Takagi-Sugeno) model approach consists to construct nonlinear or complex dynamic systems that cannot be exactly modeled, by means of interpolating the behavior of several LTI (Linear Time Invariant) sub models. Since T-S observer based controller has been considered to develop some systematic design algorithms to guarantee the stability and specific performances for the T-S model based systems, this paper represent a new design of fuzzy state observer to estimate the states of engine torque control system of spark ignition engine. Keywords: T-S model, T-S observer, fuzzy state observer, engine torque, spark ignition engine.
T-S Fuzzy Model Design for Engine Torque Control System of Spark Ignition Engine Triwiyatno, Aris; Nuh, Mohammad; Santoso, Ari; Sutantra, I Nyoman
TRANSMISI Vol 11, No 4 (2009): TRANSMISI
Publisher : TRANSMISI

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Abstract

On many occasions, fuzzy rule-based systems have been demonstrated to be powerful tools in modeling, decision making and automatic control. The T-S model approach consists to construct nonlinear or complex dynamic systems that cannot be exactly modeled by mathematical model, by means of interpolating the behavior of several LTI (Linear Time Invariant) sub models. In this paper, a new modification fuzzy model based on T-S model will be designed to represent engine torque control system of spark ignition engine, since spark ignition engine is a high non linear system with wide uncertainties that very difficult to be modeled by mathematical model. Keywords: T-S model, fuzzy model, engine torque, spark ignition engine.
Desain Sistem Kendali pada Ulisar (UUV) Unmanned Underwater Vehicle Rachim, Vega Pradana; Triwiyatno, Aris; Setiyono, Budi
TRANSMISI Vol 14, No 2 (2012): TRANSMISI
Publisher : TRANSMISI

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Abstract

Unmanned Underwater Vehicle (UUV) is one of the systems that have a complex characteristic. UUV usually used to obtain data, mapping and underwater survey. One of a complexity that UUV have is based onuncertainty and non-linearity of hydrodynamics parameter. Besides that, UUV which studied in this paper have 6 degree of freedom, so it has also a lot parameter. And to handle that, a bigger system need to divide into some sub-system, the divided is based on control needed. To handle a movement of UUV, it’s important to build a control system that effective and efficient and a writer choose PID and Sliding-PID (SMC-PID) as a controller Modeling system used to linearize a non-linier system from UUV, linearizing around the equilibrium point. Then make a model into a state space, these state space uses for a controlling. For a control system building and respond system from an UUV movement, MATLAB program is needed Keywords: UUV, PID control, Sliding-PID, MATLAB Simulink, Linier System
PERANCANGAN KONTROL OPTIMAL PADA SISTEM MULTI MACHINE MENGGUNAKAN LINEAR QUADRATIC REGULATOR-GLOWWORM SWARM OPTIMIZATION (LQR-GSO) Arsyad, Arsyad; Triwiyatno, Aris; Handoko, Susatyo
TRANSIENT TRANSIENT, VOL. 2, NO. 2, JUNI 2013
Publisher : TRANSIENT

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Abstract

Abstrak Stabilitas pada sistem multi machine merupakan faktor penting untuk menjaga operasional sistem agar tetap aman. Perancangan kontrol optimal pada sistem multi machine menggunakan Linear Quadratic Regulator (LQR) diharapkan mampu meningkatkan stabilitas sistem multi machine. Pada penelitian ini, nilai variabel diagonal matriks bobot Q dan R pada LQR  dihitung menggunakan Glowworm Swarm Optimization (GSO). Model persamaan state space dan data parameter pada sistem multi machine didapat dari studi pustaka, yaitu jurnal dan buku. Sedangkan untuk implementasi kontrol optimal pada sistem multi machine dilakukan dengan menggunakan MATLAB. Hasil simulasi yang diperoleh yaitu perbandingan antara respon sistem multi machine yang menggunakan kontrol LQR-GSO dengan LQR. Berdasarkan pengujian yang dilakukan, kontrol LQR-GSO pada multi machine memperkecil error sebanyak 32.95% sedangkan kontrol LQR pada multi machine memperkecil error sebanyak 28.87%. Oleh sebab itu, metode kontrol LQR-GSO memiliki respon yang lebih baik dibandingkan metode kontrol LQR. Kata kunci: stabilitas, multi machine, Linear Quadratic Regulator (LQR), Glowworm Swarm Optimization (GSO)  Abstract Multi machine system stability is an important factor to keep the system operational in order to stay safe. The design of optimal control in multi machine system using Linear Quadratic Regulator (LQR) is expected to improve the stability of multi machine system. In this research, the value of the variable diagonal weighting matrix Q and R on LQR calculated using Glowworm Swarm Optimization (GSO). State space equation model and data parameters in a multi machine system obtained from the literature. Implementation of optimal control in multi machine system performed using MATLAB. Simulation results obtained by the comparison between the response of multi machine system using LQR control and LQR-GSO control. Based on the tests, the LQR-GSO control in multi machine reduce as much as 32.95% error and the LQR control in multi machine reduce as much as 28.87% error. Therefore, the LQR-GSO control method has a better response than the LQR control method. Keywords: stability, multi machine, Linear Quadratic Regulator (LQR), Glowworm Swarm Optimization (GSO)
PENGENDALIAN pH AIR PADA WATER TREATMENT PLANT SYSTEM MENGGUNAKAN METODE KONTROL PID Bayu Pamungkas, Catur Ardy; Triwiyatno, Aris; Setiyono, Budi
TRANSIENT TRANSIENT, VOL. 2, NO. 1, MARET 2013
Publisher : TRANSIENT

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Abstract

Abstrak   Air limbah adalah cairan buangan dari rumah tangga, industri, maupun tempat-tempat umum lainnya yang mengandung bahan-bahan yang dapat membahayakan kehidupan manusia serta mengganggu kelestarian lingkungan. Oleh karena itu, diperlukan suatu alat untuk mengolah air dari kualitas air yang kurang bagus( limbah ) agar mendapatkan kualitas air pengolahan standart yang di inginkan, salah satunya adalah menggunakan water treatment plant. Untuk mendapatkan kualitas air yang diinginkan pada proses water treatment, maka perlu parameter-parameter yang harus dijaga seperti kekeruhan, conductivity, pH, alkalinitas, kesadahan, dan tingkat kejernihan. Pada penelitian ini telah dilakukan rancang bangun sistem monitoring kadar pH pada pengolahan limbah cair rumah tangga berbasis mikrokontroler. Monitoring ini digunakan untuk mengetahui seberapa besar kadar pH yang ada pada tangki pH dengan menggunakan sensor gelas kaca (PE-03) dan menampilkannya pada LCD (Liquid Crystal Display) pengendalian dilakukan melalui metode PID Ziegler Nichols I. Dari hasil pengujian didapatkan bahwa kontrol PID dapat diaplikasikan dengan baik untuk mengontrol kadar pH cairan dengan menggunakan metode penalaan Ziegler Nichols. Dengan metode penalaan tersebut didapatkan parameter kontrol PID yaitu Kp = 16,09; Ti = 32; dan Td = 8. Pada pengujian dengan penalaan parameter PID mampu menghasilkan tanggapan keluaran dengan rise time dan waktu penetapan yang cepat tanpa overshoot dan ketika sistem diberi gangguan,tanggapan keluaran akan tetap terjaga dalam kestabilan.   Kata kunci: Kontrol PID, Kontrol pH air, Sensor pH.     Abstract   Wastewater treatment is the liquid waste from households, industry, and other public places that contain ingredients that could endanger human life and interfere with environmental sustainability. Therefore, we need a means to treat water from the lack of good quality water (waste) water quality treatment in order to obtain the desired standard, one of which is using a water treatment plant. To get the desired water quality at water treatment process, it is necessary parameters should be kept as turbidity, conductivity, pH, alkalinity, hardness, and a level of clarity. In this final design, it has been developed the pH monitoring system for  wastewater treatment based on microcontroler. Monitoring system is used to determine the pH levels that exist in the tanki by using glass electrode sensor (PE-03), to display the result on LCD(Liquid Crystal Display) and to control the PID Ziegler Nichols I method. From the experiment result, we can get a conclusion that the PID control systems can applied properly to control pH of fluid plant using the Ziegler Nichols tuning method. The results on tuning of PID control parameters are Kp = 16,09; Ti = 32; and Td = 8. At the testing of plant,  got the result of tuning parameter PID capable to yield output response with rise time and steady time which quickly without overshoot, and when system given by disturbance, the output response will remain to be awaked in stability.   Key words: PID control,  pH control,  pH sensor.
Co-Authors Achmad Abdul Jabbar Achmad Jaelani Adrian Bela Widodo, Adrian Bela Afif Rohiki Makhtum Annas, Afif Rohiki Makhtum Agung Imam Rahmanto, Agung Imam Al Vandy Reactor Muhammad Aldo Dwi Yuniar, Aldo Dwi Alfrian Dwi Vamiko Andhika Dwipradipta Andreas Surya, Andreas Anggita P. Septiani Ari Santoso Arif Widagdo Aristya Panggi Wijaya Arsyad Arsyad ashegaf, farhan taufiqurrahman Bayu Gigih Prasetyo Budi Setiyono Catur Ardy Bayu Pamungkas Darjat Darjat Dino Budi Prakoso, Dino Budi Ditya Satriya Nugroho Hadi Edo Herwinantyo, Edo Erwin Nashrullah Esa Apriaskar Ezufatrin Ezufatrin, Ezufatrin Fadilah, Aldi Nur Fahmi Rezza Djuliandri, Fahmi Rezza Fatimah Avtur Alifia Fergy Romadhany Hafidz Aly Hidayat Hanif, Muhammad Harisuddin I Nyoman Sutantra Ilham Bayu Pratama Putra Iwan Setiawan Kurniawan Nur Aryadi, Kurniawan Nur Laksmita, Aurelia Ketawang Tunjung Lanang Febriramadhan, Lanang Lathifah Alfat, Lathifah M Arif Syukur D Maman Soemantri, Maman Meilia Safitri Mochammad Facta Mohammad Adhitama Mohammad Nuh Muarif Fandhi A, Muarif Fandhi Muhamad Iqbal Muhammad Danang Nuralamsyah Muhammad Fadli Nasution Muhammad Fathul Faris Muhammad Manshur, Muhammad Muhammad Supono Kurniawan Mulyono, Aditya Eka Munawar Agus Riyadi Nugroho, Wisnu Dyan Oddy Permana Putra Sinaga, Oddy Permana Oka Danil Saputra Oni Bagus Perdana, Atha’ Dwira Pradana, Anindita Panji Praptiandari Raras Puspitasari, Praptiandari Raras Puguh Gambiro R. Rizal Isnanto Ragil Aji Prastomo Rahmadani, Taufik Reimansyah, Muhammad Fajri Nur Reza Dwi Imami Rizky Adi Nugraha Rizqi Prayogo Pangestu, Rizqi Prayogo Rofiq Cahyo Prayogo, Rofiq Cahyo Rosdiana Fajar Mardhika, Rosdiana Fajar Rr. Kartika Kusuma Winahyu, Rr. Kartika Kusuma Scenda Bernados Purba Sonya Fitri Situmorang, Sonya Fitri Sucron Handoko Sudjadi Sudjadi Sumardi Sumardi Supriyo Supriyo Susatyo Handoko Susdarminasari Taini Trias Andromeda Trio Bowo Setiyo Vega Pradana Rachim Wahyudi Wahyudi Yoga Adi Candra, Yoga Adi Yonatan Riyaneka Putra Yulyanto Adi Prabowo Yuslam Aditya Medikantoro, Yuslam Aditya ZULKARNAIN ZULKARNAIN