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Journal : Jurnal Ilmiah Dinamika Rekayasa (DINAREK)

H-Bridge Inverter denganBoost-up Chopper sebagai Pengondisi DayaPhotovoltaic Suroso, Suroso
Dinamika Rekayasa Vol 7, No 2 (2011): Dinamika Rekayasa - Agustus 2011
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2011.7.2.48

Abstract

This paper discusses anapplication of H-bridge inverter equipped with boost-up chopper circuits as photovoltaic power conditioner in stand-alone operation. First, the boost-up chopper circuits working to regulate the DCoutput voltage of photovoltaic with proportional-integral (PI) controller is described. Then, the H-bridge inverter converting the DC output voltage of chopper circuits become AC voltage waveform is presented. The uni-polar sinusoidal pulse-width modulation technique (SPWM) is appliedto the inverter circuits to produce sinusoidal output current waveform. The simulation results of the proposed photovoltaic system for different output voltages, and transient voltage wave forms are presented in the paper. The results show that the boost-up chopper circuits is effective to be appliedin the photovoltaic system to obtain stable DC output voltage of the photovoltaic, and AC voltage waveform generated bythe inverter circuits.
Model Pengendalian Sedimentasi Waduk Mrica Dengan Fluidisasi Suroso, Suroso; Widiyanto, Wahyu
Dinamika Rekayasa Vol 5, No 2 (2009): Dinamika Rekayasa - Agustus 2009
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2009.5.2.26

Abstract

Sediment rate of Mrica reservoir is much faster than its early design by which it causes life time service of Mrica reservoir becoming shorter than previous assumption. Sediment control has been being operated by flushing, but it seems less optimal. This research aims to develop both laboratory models of fluidization and fluidizer systems for controlling sedimentation in Mrica reservoir.This research was carried out to experiment model in a laboratory regarding effectiveness of fluidization system especially to support sediment flushing. Sample sediment tested was from Mrica reservoir bed. There were two models including a flushing model alone and a flushing model assisted by a fluidizer pipe. Experiment was conducted in various discharges, sediment depths, and pipe pressures.The research results show that sediment category in Mrica reservoir is cohesive material consisting around 80% of medium to coarse silt. Compared to the flushing mechanism alone, the combination of flushing and fluidization can increase the volume of sediment removal by 67.54 %, 67.88 %, and 71.26 % for the discharges of 0.123 litre/sec, 0.185 litre/sec, and 0.369 litre/sec respectively. The combination of flushing and fluidization is also able to improve model efficiency by around 4.38 %, 4.54 %, and 5.07 % for the same variation of discharges.
Analisis Sentensity Duration Frequency Kejadian Hujan di Kabupaten Banjarnegara Suroso, Suroso
Dinamika Rekayasa Vol 2, No 1 (2006): Dinamika Rekayasa - Februari 2006
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2006.2.1.9

Abstract

Rainfall is the most important input component in the hydrologic process. Rainfall characteristic, which are intensity, duration, depth, and frequency. Intensity that is related to duration and frequency can be expressed by Intensity-Duration-Frequency (IDF) curve. IDF curve can be used to calculate floods design using by rational method. The objective of the research is to create IDF curve on flood prone area on Banjarnegara regency. In this study, daily rainfall depth was calculated by frequency analysis, which was started by determining the daily maximum mean rainfall, followed by calculated statistical parameter to choose the best distribution. Intensity could be calculated by Mononobe method. The result of this study indicated that the Log Normal distribution fit to most of data. The rainfall design for time periods 2, 5, 10, 15, 20, 25, 30, 40, 50 and 100 year are 116.3, 131.5, 140.2, 144.8, 147.8, 150.1, 151.9, 154.8, 156.9, dan 163.3 mm. The highly intensity of ranfall must be happen on short duration, but the lowly intensity of ranfall must be happen on long duration.
Pengaruh Arus Harmonisa Pada Unjuk Kerja Sistem Open-Loop Variable Speed Drive Motor Induksi Menggunkanan Inverter Suroso, Suroso; Winasis, Winasis; Nugroho, Daru Tri; Prakoso, Sebastian Adi
Dinamika Rekayasa Vol 12, No 1 (2016): Dinamika Rekayasa Februari 2016
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2016.12.1.139

Abstract

One of the  the inverter’s applications is in Variable Speed Drive (VSD) to control the speed of an induction motor by varying  the voltage or the output frequency of the inverter. Induction motor reliability driven by using inverter is often affected by harmonics components of the current and voltage  generated by the inverter. This phenomenon brings harmonic losses in the industry process applying VSD and induction motors, because not all inverters produce a pure sinusoidal wave. Thi paper presents the effect of harmonics on the performance of squirrel cage induction motor type i.e. the speed, torque and efficiency by conducting computer simulation and experimental test in laboratory. The increase in the value of harmonics resulting an increase in the value of speed 1.41%, an increase in the value of torque 1.81 Nm, and decreased of efficiency 1to5%, the harmonics also resulted torque ripple 2 to5 times resulting in unstable speed of motor, arising engine vibration and causing motor heating
Analisis Unjuk Kerja Prototip Sistem Pengiriman Daya Nirkabel Jenis Resonansi Magnetik Menggunakan Inverter Setengah Jembatan Dan Kumparan Helix Suroso, Suroso; Prasetijo, Hari; Nugroho, Daru Tri; Qosim, Marlin Ibnu
Dinamika Rekayasa Vol 14, No 2 (2018): Dinamika Rekayasa - Agustus 2018
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2018.14.1.207

Abstract

Makalah ini menyajikan hasil perancangan, pengujian dan analisis unjuk kerja prototip sistem pengiriman daya nirkabel menggunakan inverter setengah jembatan dengan teknik resonansi magnetik frekuensi 100 kHz. Pengiriman daya menggunakan rangkaian resonansi magnetik bekerja memindahkan energi listrik dari rangkaian pengirim ke rangkaian penerima melalui resonator yang beroperasi pada frekuensi resonansi. Pada penelitian ini bagian pengirim dan penerima menggunakan kumparan kawat tembaga berdiameter 1,2 mm berbentuk kumparan helix dengan diameter kumparan 10 cm. Catu daya pengirim menggunakan sumber DC 12 V dan dihubungkan dengan inverter setengah jembatan. Sisi penerima dihubungkan dengan rangkaian penyearah diode yang dilengkapi dengan filter untuk mendapatkan tegangan DC. Rangkaian inverter dibuat menggunakan saklar semikonduktor daya MOSFET. Berdasarkan hasil pengujian prototip di laboratorium diperoleh bahwa efisiensi pengiriman daya berkurang terhadap jarak. Semakin jauh jarak antara kumparan pengirim terhadap kumparan penerima, maka efisiensinya menurun. Frekuensi sinyal yang dikirim relatif tetap meskipun jarak kumparan pengirim terhadap kumparan penerima berubah. Sudut antara kumparan penerima terhadap kumparan pengirim yang memberikan efisiensi terbaik adalah 00. Selain itu, untuk hasil pengujian ketika terdapat media yang bersifat isolator di antara kumparan pengirim dan penerima maka transfer daya tidak terganggu. Tetapi ketika terdapat media konduktor maka daya akan terserap oleh konduktor tersebut sehingga efisiensi semakin kecil.
Co-Authors Abdi, Nugraha Rangga Abdul Muhid, Abdul Abdullah Nur Azis, Abdullah Nur Abdullah Nur Aziz Ade Wasti, Ade Adewasti, Adewasti Adewasti, Adewasti Afendy Widayat, Afendy Afriani, Sherli Wahyuni Dwi Afwan, Muhamad Ilham AGUS MULIADI PUTRA, AGUS MULIADI Agus Purnomo AGUS PURWANTO Agus Suharyanto agus wahit rohman, agus wahit Alvin, Fauzi Alwafi Pujiraharjo Amin Rejo Amran Amran Ananto Aji, Ananto Ananto, Aji Andi Susilo Antanaz Sary, Arline Apik Budi Santoso Apriliza, Anggia Nur Apriliza, Anggia Nur Arif Lukito Arum Uktiani, Arum As’ad Munawir As’ad Munawir, Yosephine Diajeng Janur Prasasti Suroso Asbari, Masduki Astari, Fajar Ayu ASTUTI, LESTARI WINDI Ato’urrahman, M. Bachtiar, Rully Basuki, Sucipto Benedikta Anna Haulian Siboro, Benedikta Anna Haulian Bregas Widya Pratama, Bregas Widya Bursandy, Azimi Bursandy, Azimi Chidir, Gusli Daru Tri Nugroho Denny Zebyan, Denny Devy, Rosindi Arta Dewa Hari Wicaksono Dewi Liesnoor Setyowati Diana Ariswanti Triningtyas, Diana Diana Ariswanti Triningtyas, Diana Ariswanti Dini Yuniar Safitri, Dini Yuniar Dolly Arthur Siregar, Dolly Arthur Doni Prayogo, Doni dwi ayu lestari, dwi ayu Edi Pranoto, Edi Eka Pratiwi, Septiana Eka Susanti Eko Andi Suryo Emilia Hesti Endhar Gilang Pradipta, Endhar Endiah P. Hastuti Endri, Jon Enie Novieastari, Enie Enrico Syaefullah Erni Suharini Esmijati Esmijati, Esmijati Faris Afif Octavio, Faris Afif Fikri, Muhamad Agung Ali Fitriyanto, Taufik Garnis, Aishah Garnis, Aishah Geni Rina S, Gita Kostania, Gita Hadi K Purwadaria Hadi K. Purwadaria Hari Prasetijo Hari Siswantoro, Hari Harimurti Harimurti HARIYANTO HARIYANTO Haryanto Haryanto Haryati, Rr Tutik Sri Herdianti Herdianti, Herdianti Heri Tjahjono Herlan Pratikto Herlien Indrawahyuni Hety R, Roro Hulu, Paolinus I Wayan Budiastra Ibnu Ziad, Ibnu Igaa Noviekayati, Igaa Irma Melani Islami, Qonitath Bella Jumrotin, Jumrotin Junaidi Junaidi Kartika Puspa N. Khaerudin Kurniawan Khaerudin Kurniawan, Khaerudin Kurniawan Khairul Ismi, Khairul Lestari, Maria Sekar Lestari, Suci Tri Lindra, Ayu Maulisa Lukmana, Aryanda M. Ruslin Anwar Maharani, Prita Yulia Maliatul Inayati, Maliatul Mandas, Astrid Lingkan Manullang, Jessica M Maramis, Fandy Marchus Budi Utomo, Marchus Budi Margiwiyatno, A. Marhamah Marhamah Martono Martono Mawardi Mawardi Meddy Harsono Meiyuntariningsih, Meiyuntariningsih Moch., Arifien Mochammad Candra Rahmanto Moh.Hadi Mahmudi Muh. Darwis Isnaini Muh. Subekti Muhammad Eka Putra, Muhammad Eka Muhammad Farid Mulyadi, Wiwid Bangun Murwati Murwati Mustofa Mustofa Nalisa, Ganes Nasron Nasron Natakusuma, Adhitya Nazaruddin, Yul Y Nugroho, Danit Aji Nugroho, Yunianto Agung Nurul Musqori Nurul Safarida, Nurul Paryono Paryono Prayugo, Muchammad Inggit Pribadi, Bangun Psikologi Psikologi Pudyono Pudyono Puji Hardati Puji Wahyumi, Puji Pujiati Utami Putra Muhammad Rifqi, Putra Muhammad Putra, Wendy Kristanto Putri, Astriana Rahma Qosim, Marlin Ibnu Retno Sundari, Lilis Rifaldi, Kgs Muhammad Rifaldi, Kgs Muhammad Rochadi, Mochammad Tri Rokhani Abdullah, Rokhani Rokhani Hasbullah S, Dwi Sarwindah Sahat Saragih Sally Cahyati Samrotul Rizqiyah, Samrotul Sanyoto, Nugroho Tri Sardulo Gembong, Sardulo Sarjana Sarjana Satria Ardhi Permana Sebastian Adi Prakoso, Sebastian Adi Sholihati Sholihati, Sholihati Slamet Susanto Sofi Hanif Sopian Soim, Sopian Sri Ambarwati, Sri Sri Nuraini, Sri Sri Sayekti Sri Wahyuni Sriyanto Sriyanto Stefanus Santosa Sudiono Sudiono, Sudiono Sudiyono, Rachma Nadhila Sugiarti, Laras Sih Sugiharto Sugiharto Suhendrianto Suhendrianto, Suhendrianto Sujatno Sujatno Sukamti Sukamti, Sukamti Sukmanto Dibyo Sulaiman, Sri Wahyuningsih Sulaiman, Sriwahyuningsih SULISTIANINGSIH, EKA Sulistiyo, Andri Sumarni, E. Sunarko Sunarko suprapto, Mohammad Nur Suratiah, Siti Suryanti, Dewi Putri Sutrisno sutrisno Suwardi Suwardi Suwarto Suwarto Tatik Meiyuntariningsih Teguh Prayoga Tjaturahono Budi Sanjoto Toshihiko Noguchi Tristiana Yuniarti Tukidi Tukidi, Tukidi Utari, Aulia Putti Wahyu Setyaningsih Wahyu Widiyanto, Wahyu Warji , Wasilatul Murtafiah Watemin Watemin Wati, Anggar Widodo Suyadi Widodo Widodo Wildana Latif Mahmudi, Wildana Latif Winasis Winasis Wisnu Kurniawan Wulan Sari, Wulan Xavir, Yos Yulvi Zaika Yupiter Sulifan, Yupiter Yusetyowati Yusetyowati, Yusetyowati Yustinus Yustinus, Yustinus