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All Journal Agroteknika Jurnal Informatika dan Rekayasa Elektronik Jurnal Pengabdian Polinema Kepada Masyarakat Jurnal ELTEK ELPOSYS: Jurnal Sistem Kelistrikan Jurnal Teknik Ilmu dan Aplikasi
Wijaya Kusuma
Politeknik Negeri Malang
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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ALTERNATIF PENANGANAN LOSSES AKIBAT KETIDAKSEIMBANGAN BEBAN PADA TRAFO DISTRIBUSI Anang Dasa Novfowan; Mochammad Mieftah; Wijaya Kusuma
Jurnal Teknik Ilmu dan Aplikasi Vol. 1 No. 1 (2020): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1766.235 KB)

Abstract

The unbalanced load on distribution transformers is mostly caused of connecting new customers and changing patterns of electricity usage in the community. The impact of the unbalanced load is the emergence of a current flowing on the transformer neutral conductor that causes energy losses. Load balancing of distribution transformers is commonly done by technicians, but the implementation takes quite a long time and is repeated, sometimes up to 4-5 times to get the appropriate results. This is more due to less valid customer phase data. Customer phase verification is needed to accelerate the load balancing process in an effort to reduce losses in distribution transformers. With valid customer phase data, just one stage of load balancing can reduce losses by 1.06 persen.
PERENCANAAN CHARGER CONTROLLER DAN BATERAI PADA PROTOTYPE PLTB SKALA KECIL DI TEKNIK LISTRIK POLINEMA Wijaya Kusuma; Anang Dasa Novfowan
Jurnal Teknik Ilmu dan Aplikasi Vol. 1 No. 1 (2020): Jurnal Teknik Ilmu dan Aplikasi
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1064.73 KB)

Abstract

One of the efforts to tackle the energy crisis is by reducing dependence on fossil energy sources and utilizing alternative energy. One of the alternative energy is wind energy. Wind energy can be used to make power plants. Wind power plant is a method to generate electrical energy by turning the wind turbine which connected to the generator, then the electrical energy which generated by generator used for supplying the load. However, the availability of the wind energy are not always constant in strength, thus to make this power plant work continuously to supplying the load it needed the element of electrical energy storage,that is battery.In order to make the electrical energy storage become efficient then used the component to support the battery charging, the presence of these component the energy produced can be stored optimallyand the battery life can be longer. The purpose of this study is to design and analyze the performance of the charger controller and battery in the PLTB system which is then used to support the work of the Wind Power Plant prototype system in State Polytechnic of Malang. The result of this study is how to choose the charger controller and battery based on some consideration, the characteristics of each components before and after be assembled in Wind Power Plant prototype system in State Polytechnic of Malang
Analisis Perencanaan Pemasangan Recloser pada Penyulang untuk Meminamilisr Pemadaman Wijaya Kusuma; Ahmad Hermawan; Aulia Nur Rahma; Muhammad Ilham Rifqi
Elposys: Jurnal Sistem Kelistrikan Vol. 8 No. 3 (2021): ELPOSYS vol.8 no.3 (2021)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v8i3.83

Abstract

One of the feeders in PT. PLN (Persero) ULP is the Selecta Feeder. Based on data, the Selecta Feeder experienced 34 disturbances from January 2018 to November 2020, with a feeder load of 164 A, 106 distribution transformers (GTT), and a network length of 62.602 km. The Selecta Feeder is the feeder with the highest load in PT. PLN (Persero) ULP Batu, and the high number of disturbances on the Selecta Feeder will have a significant impact on the revenue of PT. PLN (Persero). There are 7 load break switches (LBS) and 1 recloser installed on the Selecta Feeder. During the period of January 2018 to November 2020, most of the disturbances occurred due to external factors and happened in sections 3 and 4. Therefore, it is necessary to ensure the continuity of electrical energy supply on the Selecta Feeder to anticipate widespread power outages by adding an installed recloser. A recloser is a protective device that can detect excessive current due to short circuits between phases or phase-to-ground faults, where the recloser automatically interrupts and recloses the circuit with an adjustable time delay.
Analisa Perbandingan Pengaturan Suhu Berbasis Logika Fuzzy Interferensi Sugeno dan Mamdani pada Alat Pengering Biji Kopi Nihayatun Nafisah; Ika Noer Syamsiana; Wijaya Kusuma; Ratna Ika Putri; Arwin Datumaya Wahyudi Sumari
Agroteknika Vol 6 No 2 (2023): Desember 2023
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v6i2.240

Abstract

Kopi merupakan komoditas unggulan dengan permintaan global yang terus meningkat. Indonesia merupakan satu dari beberapa negara produsen kopi terbesar di dunia setelah India dan Brazil. Salah satu upaya menjaga kualitas biji kopi hijau agar sesuai dengan SNI 01-2907-2008 adalah menjaga nilai kadar air. Konsistensi nilai kadar air, membutuhkan perlakuan khusus dalam metode pasca panen yaitu pada proses pengeringan biji kopi. Mengeringkan biji kopi menggunakan metode tradisional menggunakan sinar matahari langsung memiliki banyak kelemahan yaitu waktu yang cukup lama, kontaminasi jamur dan bakteri serta suhu pengeringan yang tidak bisa diatur. Diperlukan alat untuk mengeringkan biji kopi dengan fitur khusus dalam mengontrol suhu optimal sebesar 50℃ untuk menyelesaikan kekurangan dari metode tradisional. Dalam pengaturan suhu agar sesuai dengan setpoint dibutuhkan metode kontrol yang tepat sehingga tujuan penelitian ini untuk membandingkan 2 metode kontrol pengaturan suhu menggunakan fuzzy logic control interferensi Mamdani dan Sugeno. Kedua metode kontrol tersebut memiliki 2 input yaitu error dan delta error serta 1 output yaitu persentase valve. Pengambilan data pada alat pengering menunjukkan bahwa logika control yang sesuai adalah menggunakan metode interferensi Mamdani dengan error maksimal sebesar 2,1% dibandingkan metode interferensi Sugeno dengan error maksimal 10%. Nilai kadar air yang dihasilkan dari pengeringan biji kopi menggunakan fuzzy logic control interferensi Mamdani yaitu sebesar 12,5% dengan massa biji kopi yang dikeringkan adalah 1000-gram dan waktu pengeringan 90 menit.
Co-Authors Ahmad Hermawan Alif fitrah Anang Dasa Novfowan Arwin Datumaya Wahyudi Sumari Aulia Nur Rahma Awan Setiawan Budi Eko Prasetyo Epiwardi Harrij Mukti K. Hikmah Ariq Yuniq Kemal Zulfianta Mochammad Mieftah Muhammad Arya Izzulhaq Muhammad Ilham Rifqi Mukti, Harrij Nihayatun Nafisah Priya Surya Harijanto Rachmat Sutjipto Rahma Nur Amalia Ratna Ika Putri Rohmanita Duanaputri Rokiyah Ruwah Joto Sigi Syah Wibowo Tresna Umar Syamsuri