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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Bulletin of Electrical Engineering and Informatics Jurnal Teknik Pengairan: Journal of Water Resources Engineering Techno (Jurnal Fakultas Teknik, Universitas Muhammadiyah Purwokerto) Jurnal Ilmiah Dinamika Rekayasa (DINAREK) JRST (Jurnal Riset Sains dan Teknologi) Jurnal Pengabdian Masyarakat Indonesia RENATA Jurnal Pengabdian Masyarakat Kita Semua
Hari Prasetijo
Program Studi Teknik Elektro Unsoed
Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Public Health Social Sciences Other

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Journal : Jurnal Ilmiah Dinamika Rekayasa (DINAREK)

 1 
Generator Magnet Permanen Sebagai Pembangkit Listrik Putaran Rendah Prasetijo, Hari; Ropiudin, Ropiudin; Dharmawan, Budi
Dinamika Rekayasa Vol 8, No 2 (2012): Dinamika Rekayasa - Agustus 2012
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2012.8.2.106

Abstract

Development renewable energy as electrical energy need to be followed by provision of low speed generator, especially for small-scale use of alternative energy. This study discusses the design of low speed synchronous generator using permanent magnets for producing magnetic flux in the rotor. Stator coils are designed so that on the rotation of 500 rpm generator can produce 5 watts output power at 3 phase voltage 12 Vac.
Penentuan Pembebanan Maksimum Transformator Daya Yang Menyuplai Personal Computer (PC) Prasetijo, Hari; Susilawati, Hesti
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.2009.5.2.21

Abstract

Personal computer is electronic equiment that use solid state device, such as rectifiers, so it to be source of harmonic current. Harmonic current is sinusoidal current with multiple frequency of fundamental current which will be increase power losses because increasing effective current and frequency. In electric distribution system, transformer is component with highest power losses. They are consit of DC losses (Pdc) that influence by effective current, eddy current (PEC) and other stray losses (POSL) which influence by effective current and their frequency. This study involved increasing transformer power losses with assume that transformer supply in full load condition to personal computer. Analyzes following IEEE Std. C57.110-1998 with comparing determination maximum transformer loading use current spectrum from spectrum analyzer equipment and conversion produce Mathlab from current wave time domain to current wave frequency domain. The result are maximum transformer loading is 97,84 use spectrum analyzer and 97,84 use Mathlab sofware.
Penentuan Kapasitas Daya Reaktif Dan Frekuensi Tuning Filter Pasif Untuk Mengurangi Kandungan Arus Harmonik Beban Prasetijo, Hari
Dinamika Rekayasa Vol 4, No 2 (2008): Dinamika Rekayasa - Agustus 2008
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.dr.2008.4.2.117

Abstract

This studi involve decresing method of harmonic current content in a radial distribution systems used single tuned passive filter. The distribution systems model consist of transformer 20/0,4 kV supplying groups of non linier loads that is represented by personal computer (PC) and fluorescent lamp 2x40 W as load harmonic current source. Passive filter was installed in PCC bus (0,4 kV) and analysis to be conducted according to IEEE std.1531-2003 and IEEE std. 519-1992. The reesult showed that insalation passive filter in PCC bus will decrease magnitut load harmonic current significantly. The decreasing determined by reactive power capacity and frequency tunning of passive filter.
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): Jurnal Ilmiah 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 Abu Bakar, Afarulrazi Agung Mubyarto Andre Primantyo Aniek Masrevaniah Budi Dharmawan Daru Tri Nugroho Dian Sisinggih Giri Angga Setia Hari Siswantoro, Hari Heri Suprijanto Hesti Susilawati Melisa Mulyadi Murdyantoro Am, Eko Purnomo, Widhiatmoko Herry Purwanto Bekti Santoso, Purwanto Bekti Qosim, Marlin Ibnu Ropiudin . Sugeng Walujo, Sugeng Sugeng Waluyo Suroso Suroso Wahyu Mulyo Utomo Widandi Soetopo Wijayanti, Linda Winasis Winasis Yanuar Haryanto Zulkipli Zulkipli