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All Journal International Journal of Electrical and Computer Engineering International Journal of Power Electronics and Drive Systems (IJPEDS) TELKOMNIKA (Telecommunication Computing Electronics and Control) Journal of Mathematical and Fundamental Sciences Journal of Engineering and Technological Sciences Proceeding of the Electrical Engineering Computer Science and Informatics
Pekik Argo Dahono
Institut Teknologi Bandung
Astronomy Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Mathematics Physics

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Current Ripple Analysis of New Double-Stator AC Drive Systems Irham Fadlika; A. N. Afandi; Pekik Argo Dahono
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 13, No 4: December 2015
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v13i4.3165

Abstract

This paper presents a current ripple analysis of new double-stator AC drive system. At first, a new double-stator AC drive system is proposed. The aim is to combine the benefits both the multilevel and multiphase system to provide the better performance to drive AC motor. The input and output current ripples of the proposed AC drive system are then analyzed. The current ripples of the proposed AC drive system are then compared to the ones of conventional double-stator AC drive system. Under the same DC input voltage, it is shown that the proposed results in less output current ripple. Under the same output voltage, the proposed AC drive system results in smaller input current and, therefore, fewer losses on the DC power supply. Experimental results are included to show the validity of the proposed concept.
A New Control Method to Reduce the Low-Frequency Output Current Ripple of AC-DC Converters by Using Virtual Inductor Pekik Argo Dahono
Journal of Engineering and Technological Sciences Vol. 44 No. 1 (2012)
Publisher : Institute for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.eng.sci.2012.44.1.4

Abstract

A new concept of virtual inductor to reduce the low-frequency dc output current ripple of ac-dc converters is introduced in this paper. Virtual inductor is defined as an additional control algorithm that changes the system behavior into the one that has an additional inductor connected on it. The virtual nature of the inductor makes the inductance can be designed without weight and volume restrictions. How to use the virtual inductor to improve the performance of converter current controller is discussed in this paper. Several simulated and experimental results are included to show the validity of the proposed concept.
Dual Carrier PWM Inverter-Fed Nine-Phase AC Motors Anwar Muqorobin; Pekik Argo Dahono; Estiko Rijanto
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 6: EECSI 2019
Publisher : IAES Indonesia Section

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eecsi.v6.1992

Abstract

In many applications such as electric vehicles, dual mode operation is needed, i.e pulsewidth modulation (PWM) mode for low speed region and squarewave mode for high speed region. The latest research has shown that symmetrical ninephase motor could provide optimal characteristics under dual mode operation, i.e. minimum nverter input and rotor current ripples. By using analytical calculation, in this paper the authors show that asymmetrical nine-phase motor can also provide the optimal characteristics under dual mode operation by simply using dual carrier PWM. This finding is supported by experimental results.
Minimisasi Riak Arus Keluaran Penyearah Daya-besaran dengan Menggunakan Filter Aktif Pekik Argo Dahono
Journal of Mathematical and Fundamental Sciences Vol. 31 No. 3 (1999)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Sari. Suatu metode baru untuk meminimisasi riak arus keluaran penyearah daya besar dengan menggunakan filter aktif diusulkan dalam tulisan ini. Karena filter aktif terhubung parallel dengan beban, maka kapasitas arus filter aktif yang diperlukan menjadi sangat kecil, yaitu sebesar riak arus yang akan dikompensasi. Selain itu, karena filter aktif dihubungkan seri dengan filter kapasitor yang ada, maka kapasitas tegangan filter aktif juga sangat kecil, yaitu sebesar riak tegangan yang dikompensasi. Teknik kendali filter aktif yang diusulkan dijelaskan dalam tulisan ini. Validitas metode yang diusulkan diuji dengan simulasi dan percobaanOutput Current Ripple Minimization of High-Power Rectifiers by using Active FilterAbstract. A new method to minimize the output current ripple of high-power rectifiers by using a dc active power filter is presented in this paper. Because the active filter is connected in paralled to the load, the current rating of the filter is very small, that is as small as the ripple which is going to be compensated. Moreover, because the active filter is series connected to the existing passive filter capacitor, the voltage rating of the active filter is also very small, that is as small as the voltage ripple which is going to be compensated. A control technique for the active filter is proposed in this paper. Validity of the proposed method is verified by simulated and experimental results.
A New Approach to Analysis of Inverter Currents Pekik Argo Dahono
Journal of Mathematical and Fundamental Sciences Vol. 30 No. 2 (1998)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

In this paper, a new approach to analysis of the average and rms currents in inverter switching devices and the rms value of the ripple component of inverter input current is presented. The proposed approach is based on the probability with which the inverter switching devices receive ON signals which can be obtained from the average value of the phase-to-dc midpoint voltages. As the knowledge of the exact switching pattern is not required, this approach is especially useful for inverters in which the exact switching patterns can not be predetermined. To show the general applicability of the proposed approach, the expressions for the average and rms currents in switching devices and the rms value of the ripple component of input current of three-phase hysteresis current-controlled and PWM inverters are derived. Experimental results are included to show the validity of the proposed method. Suatu Pendekatan Baru untuk Analisis Arus-arus InverterDalam makalah ini dipresentasikan, suatu pendekatan baru umtuk analisis arus rata-rata dan rms pada komponen-komponen switching inverter dan nilai rms riak arus masukan inverter. Pendekatan yang diusulkan berbasis pada peluang komponen-komponen switching inverter menerima sinyal ON yang didapatkan dari nilai rata-rata tegangan fasa keluaran. Karena pengetahuan detil tentang pola switching inverter tidak diperlukan, metoda yang diusulkan sangat cocok untuk analisis arus-arus pada inverter dengan pola switching yang tidak bisa ditentukan. Untuk menunjukkan luasnya daerah penerapan, persamaan-persamaan arus rata-rata dan rms komponen switching dan nilai rms riak arus masukan dari inverter yang menggunakan pengendali arus jenis hysteresis dan yang menggunakan pengendali PWM diturunkan. Hasil pengukuran disertakan untuk menunjukkan validitas metoda yang diusulkan.
Analisis Motor Tak Serempak Tiga-Fasa dengan Metoda Park Komplek Yanuarsyah Haroen; Pekik Argo Dahono
Journal of Mathematical and Fundamental Sciences Vol. 22 No. 1/2/3 (1989)
Publisher : Institute for Research and Community Services (LPPM) ITB

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Abstract

Tulisan ini menyajikan analisis untuk kerja mesin listrik jenis non-salien. Analisis kwantitatif dilakukan dengan metoda Park d, q yang digeneralisasi, dengan menempatkan sumbu d, q pada sudut sembarang, untuk mencari bentuk umum persamaan Park komplek. Untuk menunjukkan bahwa teori ini berlaku umum dan dapat diterapkan pada hal khusus, maka diambil contoh pengasutan motor tak serempak dengan tegangan tiga-fasa sinusoidal dan inverter otonom tiga-fasa yang mencatu motor tak serempak. Persamaan listrik motor tak serempak yang dinyatakan dalam bentuk Park komplek menjadi lebih sederhana, sehingga penyelesainnya lebih mudah. Dari hasil simulasi dapat diketahui besaran listrik maksimum yang diperlukan dalam disain inverter dan motor listrik. Performance analysis of non-salient type of electrical machines is described in this paper. Based on the d-g Park's equations the general form, i.e. by placing the d-q axes at an arbitrary angle, of Park complex equations are derived. The general applicability of this theory is verified by two examples, i.e. the direct on line starting of asynchronous motor and the inverter fed asynchronous motor. It is shown in this paper that the performance equations of asynchronous machines in Park's complex form are simpler, and furthermore simplify the solution. Important design informations for inverter and electrical machines such as the peak values of electrical parameters are provided by the simulation results.
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.
Co-Authors A.N. Afandi Andriazis Dahono Anwar Muqorobin Anwar Muqorobin Arwindra Rizqiawan Arwindra Rizqiawan Deni Deni Dessy Amirudin Een Taryana Estiko Rijanto Furqani, Jihad Gifari Iswandi Hasyim Hasyim, Gifari Iswandi Irham Fadlika Muqorobin, Anwar Muqorobin, Anwar Naqita Ramadhani Purwadi, Agus Ridha D. N. Aditama Rijanto, Estiko Sulistyo Wijanarko Wijanarko, Sulistyo Yanuarsyah Haroen