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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Mechatronics, Electrical Power, and Vehicular Technology Jurnal INKOM Ketenagalistrikan dan Energi Terbarukan
Anwar Muqorobin
Pusat Penelitian Tenaga Listrik dan Mekatronik - LIPI, Komp. LIPI Bandung, Jl Sangkuriang, Gd 20, Lt 2, Bandung, Jawa Barat 40135
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy

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KONTROL ON-OFF PADA KONVERTER DC-DC BOOST DAN INVERTER BOOST DENGAN MENGGUNAKAN MODEL HIBRIDA; ON-OFF CONTROL IN BOOST DC-DC CONVERTER AND BOOST INVERTER USING HYBRID MODEL Muqorobin, Anwar
Ketenagalistrikan dan Energi Terbarukan Vol 13, No 2 (2014): KETENAGALISTRIKAN DAN ENERGI TERBARUKAN
Publisher : P3TKEBTKE

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Abstract

 ISSN 1978-236589Sistem elektrik seperti sistem tenaga listrik, konverter daya, dan motor listrik, mempunyai ketidaklinieran pada model dinamiknya. Namun demikian, sistem-sistem tersebut telah berhasil dikontrol dengan menggunakan kontrol klasik. Tulisan ini melakukan analisa aplikasi kontrol on-off pada konverter daya, yaitu konverter boost dan inverter boost, dengan menggunakan kestabilan Lyapunov.Dalam tulisan ini, dilakukan pemodelan hibrida pada konverter dc-dc boost dan inverter boost. Berkaitan dengan kontrol on-off, pemodelan tersebut menggunakan dua keadaan diskrit. Kemudian dilakukan perancangan kontrol hibrida dan kontrol on-off berdasarkan model hibrida yang telah diberikan. Kedua kontrol dibandingkan unjuk kinerjanya dengan menggunakan simulasi baik dalam kondisi transien maupun dalam keadaan tunak. Hasil simulasi menunjukkan bahwa kontrol hibrida memberikan tanggapan transien yang lebih baik daripada kontrol on-off dan tanggapan yang sama dengan kontrol on-off pada keadaan tunak. Kontrol on-off dimplementasikan ke dalam perangkat keras dengan menggunakan prosessor sinyal digital TMS28335. Hasil eksperimen menunjukkan bahwa kontrol on-off dapat bekerja dengan baik pada konverter dc-dc boost dan inverter boost. Hasil eksperimen tersebut merupakan tanggapan kontrol dalam keadaan tunak. Electric systems for example power system, power converter and electric motor, have nonlinear characteristic in their dynamic model. However, these systems have been controlled successfully using classic control. This paper is going to conduct analysis of on-off control application in power converter, those are boost converter and boost inverter, using Lyapunov stability. In this paper, the author made hybrid models for boost dc-dc converter and boost inverter. Related to on-off control, the model only used two discrete states. Then the hybrid and on-off control were designed based on the hybrid model. Both controls’s performance were compared using simulation, that is the transient response and the steady state response. Simulation results showed that the hybrid control provided better transient response than the on-off control but had similar steady state response. After that, the on-off control was implemented in the hardware using TMS28335 digital signal processor. The experimental results showed that the on-off control could stabilize the boost converter and boost inverter. That experimental results were steady state response of the control.
RANCANG BANGUN MODUL PENGKONDISI SINYAL & ANTAR MUKA UNTUK KONTROLER TEGANGAN DIJITAL PADA PEMBANGKIT LISTRIK TENAGA AIR (PLTA) Rijanto, Estiko; Muqorobin, Anwar
Ketenagalistrikan dan Energi Terbarukan Vol 10, No 1 (2011): KETENAGALISTRIKAN DAN ENERGI TERBARUKAN
Publisher : P3TKEBTKE

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Abstract

Saat ini masih banyak PLTA yang beroperasi menggunakan kontroler tegangan analog. Beberapa komponen pentingnya semakin sulit ditemukan sehingga mengancam keberlangsungan operasi PLTA yang bersangkutan. Tujuan penelitian ini adalah untuk merancang bangun sebuah kontroler tegangan dijital yang dapat dipakai pada PLTA berkapasitas 9 MVA dengan metoda reverse engineering dan updating. Tujuan makalah ini adalah melaporkan hasil rancang bangun tersebut khususnya terkait modul pengkondisi sinyal dan antar muka. Karena algoritma kontrol direalisasikan memakai DSP, maka diperlukan pembuatan modul pengkondisi sinyal ADC dan DAC. Modul antara muka pengeset tegangan operator dan pemonitor driver dibuat memakaimikrokontroler 8 bit. Hasil eksperimen menunjukkan bahwa: modul pengkondisi sinyal ADC dan DAC yang dibuat berfungsi dengan baik, modul pengeset tegangan mampu memproses perintah secara tepat, dan modul pemonitor driver mampu mendeteksi pulsa penyalaan dan memberikan indikator status berupa: normal, terlalu panjang, dan terlalu pendek.
DC Brushless Motor Control Design and Preliminary Testing for Independent 4-Wheel Drive Rev-11 Robotic Platform Saputra, Roni Permana; Ardiansyah, Rizqi Andry; Mirdanies, Midriem; Santoso, Arif; Nugraha, Aditya Sukma; Muqorobin, Anwar; Saputra, Hendri Maja; Susanti, Vita; Rijanto, Estiko
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 2, No 2 (2011)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (714.52 KB) | DOI: 10.14203/j.mev.2011.v2.85-94

Abstract

This paper discusses the design of control system for brushless DC motor using microcontroller ATMega 16 that will be applied to an independent 4-wheel drive Mobile Robot LIPI version 2 (REV-11). The control system consists of two parts which are brushless DC motor control module and supervisory control module that coordinates the desired command to the motor control module. To control the REV-11 platform, supervisory control transmit the reference data of speed and direction of motor to control the speed and direction of each actuator on the platform REV-11. From the test results it is concluded that the designed control system work properly to coordinate and control the speed and direction of motion of the actuator motor REV-11 platform. 
Comparison of Unmodulated Current Control Characteristics of Permanent Magnet Synchronous Motor Muqorobin, Anwar; Irasari, Pudji; Taufik, Taufik
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 5, No 2 (2014)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1231.49 KB) | DOI: 10.14203/j.mev.2014.v5.115-122

Abstract

This paper discusses comparison of unmodulated current controls in PMSM, more specifically, on-off, sliding mode, predictive and hybrid controls. The purpose of this study is to select the most appropriate control technique to be adopted. The comparison method is preceded by modeling the motor and entering the values of the motor parameters. PI control is used for speed control and zero d-axis current is employed. Furthermore, performing simulation for each type ofthe selected current controls and analyzing their responses in terms of dq and abc currents, q-axis current response with step reference, as well as THD. Simulation results show that the on-off control gives the best overall performance based on its abc-axis current ripple and THD at large load torque. The hybrid control shows the best response occurring only at the fastest transient time of q-axis current but its response exhibits bad qualities compared with other controls. The predictive control yields the best responses offering the smallest d-axis ripple current and THD at small load torque condition. The sliding mode control, however, does not exhibit any prominent performance compared to the others. Results presented in this paper further indicate that for the PMSM used in the simulation the most appropriate control is the predictive control.
Desain dan Implementasi Sistem Kendali CNC Router Menggunakan PC untuk Flame Cutting Machine Saputra, Roni Permana; Muqorobin, Anwar; Santoso, Arif; Purwanto, Teguh Pudji
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 2, No 1 (2011)
Publisher : Research Centre for Electrical Power and Mechatronics, Indonesian Istitutes of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (620.579 KB) | DOI: 10.14203/j.mev.2011.v2.41-50

Abstract

This paper focuses on design of router control systems based on computer numerical control (CNC) using personal computer (PC) implemented in flame cutting machine (FCM). NC-Code entered into the computer translated to be a command signal sent by the PC to a microcontroller to control the end effector’s movement alongthe X and Y axis simultaneously based on linear and circular interpolations calculation on the PC. This control system is implemented on FCM by connecting the output control of the microcontroller with the driver actuator of the FCM in the form of a DC motor. The obtained result is in the form of a CNC router control system prototype to be implemented in the FCM which is capable to perform linear interpolation and circular interpolation. 
Perancangan Kontroler DC Link Inverter Sisi Jala-jala pada Kondisi Faktor Daya 1 untuk Pembangkit Listrik Tenaga Bayu 100kW Muqorobin, Anwar; Rijanto, Estiko
INKOM Journal Vol 4, No 2 (2010)
Publisher : Pusat Penelitian Informatika - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.745 KB) | DOI: 10.14203/j.inkom.61

Abstract

Sistem kontrol pembangkit listrik tenaga bayu (PLTBayu) 100kW yang sedang dirancang bangun di Pusat Penelitian Tenaga Listrik dan Mekatronik (Puslit Telimek) LIPI memakai inverter 3 fasa yang dipasang pada sisi jala-jala. Inverter ini berfungsi menyalurkan daya listrik yang dibangkitkan oleh generator induksi 3 fasa dari DC link saat operasi dan menyalurkan daya listrik dari jala-jala ke DC link saat start up. Saat melakukan fungsinya inverter ini perlu dikontrol untuk  menjaga tegangan DC link pada kisaran nilai yang diinginkan. Makalah ini bertujuan untuk merancang kontroler tegangan DC link untuk inverter sisi jala-jala. Kontrol dc link terdiri dari kontrol umpan balik PI dan kontrol umpan maju dari arus yang masuk dari sisi generator. Pada makalah ini digunakan sinusoidal Pulse Width Modulation (PWM)  dengan dan tanpa penambahan sinyal urutan nol (ZSS). Dari hasil simulasi ditarik kesimpulan: (a) kontroler DC link yang telah dirancang mampu mencapai tegangan referensi yang diinginkan, (b) modulasi dengan tambahan sinyal urutan nol memberikan tanggapan tegangan DC link yang lebih baik dari pada modulasi tanpa tambahan sinyal urutan nol, dan (c) modulasi dengan tambahan sinyal urutan nol memberikan faktor daya yang lebih mendekati 1 dari pada modulasi tanpa tambahan sinyal urutan nol.Kata kunci: tenaga bayu, pembangkit listrik, inverter 3 fasa, kontrol tegangan dc link, kontrol umpan balik, kontrol umpan maju, sinusoidal PWM, ZSS.
A bidirectional power converter connecting electric vehicle battery and DC microgrid Wijanarko, Sulistyo; Hasyim, Gifari Iswandi; Furqani, Jihad; Rizqiawan, Arwindra; Dahono, Pekik Argo; Muqorobin, Anwar
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 2: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i2.pp978-992

Abstract

One way to increase electric vehicle (EV) battery utilization is to connect it to a dc microgrid. The EV battery can assume the role of an energy storage from the grid point of view. A bidirectional DC-DC converter will be needed to transfer power between them back and forth. This paper proposes the converter design considering its functional objective, including interleaved phase number determination. Efficiency performance evaluation is presented by power loss analysis with the parasitic-parameters consideration of the components. Finding optimum switching frequency based on power loss analysis is performed independently between input and output sides of the converter. Finally, experiments using a scaled-down prototype are shown to verify the analytical analysis of the converter. The experimental results properly validate the power loss analytic analysis carried out in this paper with a maximum error of 2.04% at 1131-watt, 60 V battery voltage, and 140 V grid voltage. Maximum efficiency 96.97% is obtained at 301-watt, 130 V battery voltage, and 151 V grid voltage. Overall, the converter has a simple structure, capable to be operated in various levels of input and output voltages with a minimum battery side current ripple.
Output current ripple analysis of single phase inverter with discontinuous PWM Muqorobin, Anwar; Wijanarko, Sulistyo; Santosa, Harjono Priyo; Irawati, Indrarini Dyah
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 15, No 4: December 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v15.i4.pp2253-2261

Abstract

Voltage source inverter has been applied for uninterruptible power supply (UPS), renewable energy sources, and motor drive. The popular modulations for inverters are sinusoidal pulse width modulation (SPWM), zero sequence signal modulation (ZSS), space vector modulation (SVM), and discontinuous PWM (DPWM). All these modulations have been applied to three-phase and multiphase inverters. The characteristics of the modulation application in these inverters have been well investigated. However, only SPWM has been applied satisfactorily in single-phase inverter. From the literature, the applications of ZSS and DPWM couldn’t show any benefit. In this paper, a DPWM is proposed for single-phase inverter. The output current ripple is analyzed and experiments are conducted to verify the analytical result. Comparison to SPWM is conducted to find the modulation index range that provides a benefit when using the DPWM.
Permanent magnet generator performance comparison under different topologies and capacities Wirtayasa, Ketut; Kasim, Muhammad; Widiyanto, Puji; Muqorobin, Anwar; Wijanarko, Sulistyo; Irasari, Pudji
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp1516-1527

Abstract

This paper compares the magnetic, electrical, and mechanical characteristics of two permanent magnet generator topologies: single-gap axial flux and single-gap inner rotor radial flux. The study aims to identify how the key parameters fluctuate at each power capacity and investigate the trends in their values as power changes. The power capacities observed are 300 W, 600 W, 900 W, 1200 W, and 1500 W. Simulations used with the help of Ansys Maxwell software to obtain: i) magnetic characteristics without load, including air gap flux density, flux linkage, and induced voltage, ii) electrical performance, consisting of armature current, terminal voltage, voltage regulation, total harmonic distortion, core loss and output power, and iii) mechanical performance, including shaft torque and cogging torque. The last step compares the power density of both topologies. The simulation results show that the axial flux permanent magnet generator (AFPMG) has better air gap flux density, voltage regulation, total harmonic distortion (THD), efficiency, electromagnetic torque, and power density characteristics. Meanwhile, the radial flux permanent magnet generator (RFPMG) is superior in induced voltage and output power. These results conclude that, in general, AFPMG is exceptional from a technical point of view and is more economical when applied to hydro or wind energy systems.
Co-Authors A.A. Ketut Agung Cahyawan W Arif Santoso Arwindra Rizqiawan Estiko Rijanto Furqani, Jihad Hasyim, Gifari Iswandi Hendri Maja Saputra Indrarini Dyah Irawati Midriem Mirdanies Muhammad Kasim Pekik Argo Dahono Pudji Irasari Puji Widiyanto, Puji Rizqi Andry Ardiansyah Roni Permana Saputra Santosa, Harjono Priyo Sukma Aditya Teguh Pudji Purwanto Vita Susanti Wijanarko, Sulistyo Wirtayasa, Ketut