Articles

A Parallel Energy-Sharing Control Strategy for Fuel Cell Hybrid Vehicle Hwa Wong, Jenn; Sutikno, Tole; Nik Idris, Nik Rumzi; Anwari, Makbul
TELKOMNIKA Telecommunication, Computing, Electronics and Control Vol 9, No 2: August 2011
Publisher : Universitas Ahmad Dahlan

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Abstract

This paper presents a parallel energy-sharing control strategy for the application of fuel cell hybrid vehicles (FCHVs). The hybrid source discussed consists of a fuel cells (FCs) generator and energy storage units (ESUs) which composed by the battery and ultracapacitor (UC) modules. A direct current (DC) bus is used to interface between the energy sources and the electric vehicles (EV) propulsion system (loads). Energy sources are connected to the DC bus using of power electronics converters. A total of six control loops are designed in the supervisory system in order to regulate the DC bus voltage, control of current flow and to monitor the state of charge (SOC) of each energy storage device at the same time. Proportional plus integral (PI) controllers are employed to regulate the output from each control loop referring to their reference signals. The proposed energy control system is simulated in MATLAB/Simulink environment. Results indicated that the proposed parallel energy-sharing control system is capable to provide a practical hybrid vehicle in respond to the vehicle traction response and avoids the FC and battery from overstressed at the same time.
FPGA for Robotic Applications: from Android/Humanoid Robots to Artificial Men Sutikno, Tole
TELKOMNIKA Telecommunication, Computing, Electronics and Control Vol 9, No 3: December 2011
Publisher : Universitas Ahmad Dahlan

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Abstract

Researches on home robots have been increasing enormously. There has always existed a continuous research effort on problems of anthropomorphic robots which is now called humanoid robots. Currently, robotics has evolved to the point that different branches have reached a remarkable level of maturity, that neural network and fuzzy logic are the main artificial intelligence as intelligent control on the robotics. Despite all this progress, while aiming at accomplishing work-tasks originally charged only to humans, robotic science has perhaps quite naturally turned into the attempt to create artificial men. It is true that artificial men or android humanoid robots open certainly very broad prospects. This “robot” may be viewed as a personal helper, and it will be called a home-robot, or personal robot. This is main reason why the two special sections are issued in the TELKOMNIKA sequentially.
Progress in Artificial Intelligence Techniques: from Brain to Emotion Sutikno, Tole; Facta, Mochammad; Arab Markadeh, G.R.
TELKOMNIKA Telecommunication, Computing, Electronics and Control Vol 9, No 2: August 2011
Publisher : Universitas Ahmad Dahlan

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Abstract

A Novel Method for IRFOC of Three-Phase Induction Motor under Open-Phase Fault Jannati, Mohammad; Sutikno, Tole; Nik Idris, Nik Rumzi; Abdul Aziz, Mohd Junaidi
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 6, No 3: September 2015
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper investigates the vector control of a star-connected three-phase Induction Motor (IM) under stator winding open-phase fault. The used vector control method is based upon indirect rotor field-orientation concepts that have been adapted for this type of machine. Beside the implementation of this method in critical industrial applications, the proposed method in this paper can be used for vector control of unbalanced 2-phase or single-phase IM with two main and auxiliary windings. Simulation results are provided to show the operation of the proposed drive system.
Novel Method of FOC to Speed Control in Three-Phase IM under Normal and Faulty Conditions Jannati, Mohammad; Sutikno, Tole; Nik Idris, Nik Rumzi; Abdul Aziz, Mohd Junaidi
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 6, No 4: December 2015
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes a novel method for speed control of three-phase Induction Motor (IM) which can be used for both healthy three-phase IM and three-phase IM under open-phase fault. The proposed fault-tolerant control system is derived from conventional Field-Oriented Control (FOC) algorithm with minor changes on it. The presented drive system is based on using an appropriate transformation matrix for the stator current variables. The presented method in this paper can be also used for speed control of single-phase IMs with two windings. The feasibility of the proposed strategy is verified by simulation results.
A Novel Method for Vector Control of Faulty Three-Phase IM Drives Based on FOC Method Jannati, Mohammad; Nik Idris, Nik Rumzi; Abdul Aziz, Mohd Junaidi; Sutikno, Tole
International Journal of Electrical and Computer Engineering (IJECE) Vol 5, No 6: December 2015
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes a novel method for vector control of faulty three-phase Induction Motor (IM) drives based on Field-Oriented Control (FOC) method. The performance characteristics of the presented drive system are investigated at healthy and open-phase fault conditions. The simulation of the case study is carried out by using the Matlab/M-File software for a star-connected three-phase IM. The results show the better performance of the proposed drive system especially in reduction of motor speed and torque oscillations during open-phase fault operating.
High Performance Vector Control of 3-Phase IM Drives under Open-Phase Fault Based on EKF for Rotor Flux Estimation Jannati, Mohammad; Sutikno, Tole; Nik Idris, Nik Rumzi; Abdul Aziz, Mohd Junaidi
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 2: April 2016
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes a novel flux observer based on Extended Kalman Filter (EKF) for high performance vector control of 3-phase Induction Motor (IM) drives under stator winding open-phase fault. The presented flux estimation combines the Indirect Rotor Field-Oriented Control (IRFOC) method. The rotor flux is obtained from two modified EKF with two different stator currents (forward and backward stator currents). The proposed technique can significantly reduce the DC-offset problem on the pure integrator associated with the basic IRFOC method. The Matlab simulation results confirm the validity of the proposed strategy.
Simplified VHDL Coding of Modified Non-Restoring Square Root Calculator Sutikno, Tole; Zakwan Jidin, Aiman; Jidin, Auzani; Nik Idris, Nik Rumzi
International Journal of Reconfigurable and Embedded Systems (IJRES) Vol 1, No 1: March 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

Square root calculation is one of the most useful and vital operation in digital signal processing which in recent generations of processors, the operation is performed by the hardware. The hardware implementation of the square root operation can be achieved by different means, but it is very dependent on programmers sense and ability to write efficient hardware designs. This paper offers universal and shortest VHDL coding of modified non-restoring square root calculator. The main principle of the method is similar with conventional non-restoring algorithm, but it only uses subtract operation and append 01, while add operation and append 11 is not used. The strategy has conducted to implement successfully in FPGA hardware, and offer an efficient in hardware resource, and it is superior.
FPGA Based a PWM Technique for Permanent Magnet AC Motor Drives Sutikno, Tole; Nik Idris, Nik Rumzi; Satya Widodo, Nuryono; Jidin, Auzani
International Journal of Reconfigurable and Embedded Systems (IJRES) Vol 1, No 2: July 2012
Publisher : Institute of Advanced Engineering and Science

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Abstract

The permanent magnet AC motor trapezoidal (BLDC motor) is not strictly DC motor, which uses a pulsed DC fed to the stator field windings to create a rotating magnetic field. Therefore, the motor needs an electronic commutation to provide the rotating field. A pair of switches must be turned on sequentially in the correct order to energize a pair of windings. If the incorrect order is applied, then the BLDC motor will not operate properly. This paper presents a smart guideline to ensure that the order to energize a pair of windings is correct. To ensure the guideline, FPGA based a simple commutation state machine scheme to control BLDC motor is presented. The experiment results have shown that the guideline is correct. The commutation scheme was successfully realized using Alteras APEX20KE FPGA to control BLDC motor in both of forward/reverse rotations or forward/reverse regenerative braking properly.
FPGA Based Torque and Flux Estimator of Direct Torque Control for Induction Machine Drives Jidin, Aiman Zakwan; Sutikno, Tole; Jidin, Auzani; Nik Idris, Nik Rumzi
TRANSMISI Vol 11, No 3 (2009): TRANSMISI
Publisher : TRANSMISI

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Abstract

This paper presents a new design of the torque and stator flux estimators for Direct Torque control (DTC) for Field Programmable Gate Array (FPGA) implementation, which permit very fast calculations.An alternative variable word-size approach in two’s complement fixed-point format is used for the implementation, in order to minimize calculation errors and the hardware resource usage. The simulation results of DTC model in Matlab, which performed double-precision calculations, are used as references to digital computations executed in FPGA implementation.The Hardware-in-the-loop (HIL) method is used to verify the minimal error between Matlab simulation and the experimental results, and thus the well-functionality of the implemented estimators.Keywords: FPGA, DTC, HIL
Co-Authors A. Azmi A. Hairullah, M. A. Kavitha A. Rahim Abdullah, A. Rahim Ab Ghani, M. R. Abdar, Moloud Abdul Rashid Husain Abdullah, A. R. Abdullah, A. R. Abdullah, A.R. Abdullah, A.R. Abdullah, A.R. Abdullah, A.R. Abdullah, A.R. Abdullah, Nurfaezah Abid, Iftikhar Abu-Khadrah, Ahmed Ismail Adel M. Alharbi Ado, Muhammad Ado, Muhammad Ahmad Tarmizi, Yusnida Ahmad Yusup, Ahmad Ahmad, Abu Zaharin Ahmad, Abu Zaharin Ahmad, M. S. Ahmad, M. S. Aiman Zakwan Jidin Aizuddin, M. Al-Rahmi, Waleed Mugahed Alahnomi, Rammah A. Alamri, Yahya Ahmed Alhamrouni, Ibrahim Alhamrouni, Ibrahim Alhamrouni, Ibrahim Ali Monadi Ali, Ahmed Hussein Ali, Muhammad Faez Alias Khamis, Alias Alif, M. A Almelian, Mohamad Milood Almelian, Mohamad Milood Alsajri, Mohammad Ammar Alhegazi, Ammar Aprilianto, Rizky Ajie Ardi Pujianta, Ardi Aree Wangsupphaphol Arji, Goli Atikah Razi Auzani Jidin Auzani Jidin Awang Jusoh Azhar, F. Azhar, F. Azri, M. Bin Hamzah, M. R. Bin Khairuddin, Azhar Bin Zabide, Muhammad Aswad Buswig, Yonis.M.Yonis Chin Kim Gan Chin Kim Gan, Chin Chye, M. S. Darmawan, Mohd Faaizie Deris Stiawan Edward, Nurhasniza Eskandari, Solieman Faddle, M. Farina, S. Firdaus, R. N. Firdaus, R.N. Firdaus, R.N. G.R. Arab Markadeh Ghanbari, M. Ghani, M. R. Ab Goh Wee Yen Habban, M.F. Habban, M.F. Habban, M.F. Hairul Talib, MD Hussain, Zahraa Faiz Hussin, A. S. Hussin, A.S. Huzainirah Ismail Ibraheem, Hind Raad Ibrahim Mohd Alsofyani Ibrahim, Izzeldin. I. Ibrahim, Z. Imam Much Ibnu Subroto Ismail, Bazilah Ismail, Mohd Arfian Iswanjono Iswanjono Izzuddin, Tarmizi Ahmad J. H. Leong Jenn Hwa Wong Jidin, A. Jidin, A. Jidin, A. Jidin, Auzani Bin Jopri, M. H. Jopri, M. H. Jopri, M.H. Jopri, M.H. Jopri, M.H. Jopri, M.H. Jopri, M.H. Jurifa Mat Lazi Jusoh, Awang Bin Karim, K.A. Kasrul Abdul Karim Khairi Rahim Khairuddin, Azhar Bin Khamis, A. Khoshrodi, M. Najafi Kim, Gan Chin Kiran Maroti, Pandav Lai Sim, New Lee, S. Lekbir, Abdelhak Liaw Geok Pheng Lilik, Jamilatul Lina Handayani Logan Raj Lourdes Victor Raj M. Faiz Habban, M. Faiz M. Hatta Jopri, M. Hatta M. J. A. Aziz M. Jannati M. Razali, Azziddin M. Razali, Azziddin Maaspaliza Azri Mabrok, Mussa Mahmoud Zadehbagheri Makbul Anwari Manap, M. Manap, M. Manap, M. Manap, M. Manap, M. Manap, M. Manap, M. Marwan M. Obeidat Masrukin, Yully Erwanti Md Nazri Othman Mehdi Dadkhah Misron, Norhisam Mochammad Facta Mohamad Aqil Mohd Fuad, Mohamad Aqil Mohamad Fani Sulaima, Mohamad Fani Mohammad Davarpanah Jazi Mohammad Hamad Al-khresheh Mohammad Jannati Mohammed Dobi, Abdul-Hakeem Mohd Hafiz Jali, Mohd Hafiz Mohd Hatta Jopri Mohd Jamil, Mohd Luqman Mohd Junaidi Abdul Aziz Mohd Ruddin Ab Ghani Mohd Ruddin Ab. Ghani Mohd Shahizan Othman Mohd Shahrieel Mohd Aras, Mohd Shahrieel Mohd Zaid Puteh Mohd, Izzeldin. I. Mohd. Alsofyani, Ibrahim Much Ibnu Subroto, Imam Muchlas Arkanuddin, Muchlas Muhammad Nizam Kamarudin Muhd Zharif Rifqi Zuber Ahmadi Mulyadi Mulyadi Munawar Agus Riyadi Mustafa Manap Mutawakkil, Abdulhamid Usman N. Idris, N.Rumzi N. R. N. Idris Naziha Ahmad Azli Nik Rumzi Nik Idris Nik Rumzi Nik Idris Nik Rumzi Nik Idris Noor Azlan, Noor Azida Nor Azizah Mohd Yusoff Nor Faezah Alias Norfadzlia Mohd Yusof, Norfadzlia Norjulia M. Nordin Norjulia Mohamad Nordin Norjulia Mohamad Nordin Nur Huda Mohd Amin, Nur Huda Nuryono Satya Widodo Omran, Mohamed A. Omran, Mohamed Asghaiyer Ong, S. L. Othman, A. R. Patkar, Fazlli Pishavaie, Mehrdad R. Niakan Kalhori, Sharareh R. Sundram Rahim Ildarabadi Rahim, M. Khairi Rahman, Nur Shamsiah Abdul Rahmat Budiarto Rahmawati Husen, Rahmawati Raj, L. Logan Raja Othman, Raja Nor Firdaus Ramachandaramurthy, Vigna K. Ramahlingam, Sundram Ramahlingam, Sundram a/l Ramlan, Nur Huda Razak, Muhammad Firdaus Abd Rizuan, Suhairi Rozaimi Ghazali Rozali, Sahazati Md. Rozana Alik S. A. Al-Habshi, Syed Muhammad S. M. Ayob S. Omar, N. Saad Mekhilef Sahid, Mohd Rodhi Saif Tahseen Hussein, Saif Tahseen Saiful, Mohamad Hamka Bin Salem, Mohamed Salem, Mohamed Salem, Mohamed Salem, Mohamed Salem, Mohamed Salem, Mohamed Salem, Mohamed Sanjeevikumar, P. Seyed Hesam Asgari Shahaboddin Shamshirband Shahreen Kasim, Shahreen Shairi, Noor Azwan Sharin Ab Ghani Soo, J. A. Sriramalakshmi, P. Subiyanto Subiyanto Suhairi, R. Suhairi, R. Sulaiman, Farina Sulaiman, Farina Suwarno Suwarno Syariffah Othman, Syariffah Tajuddin, M. F. N. Tan Kar Guan Tan, Y. C. Tarmizi Ahmad Izzuddin, Tarmizi Tazally, M. A. I. A. Tomasz Maliszewski Yahya A. Alamri Yusoff, M. R. Yusoff, M.R. Yusoff, M.R. Yusoff, M.R. Yusoff, M.R. Yussof, Zulkalnain Mohd Z. Zakaria Zahriladha Zakaria Zainal Abidin, Ahmad Firdaus Zanariah Jano Zulkifilie Ibrahim