Seno D. Panjaitan
Tanjungpura University

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A Lighting Control System in Buildings based on Fuzzy Logic D. Panjaitan, Seno; Hartoyo, Aryanto
TELKOMNIKA Telecommunication, Computing, Electronics and Control Vol 9, No 3: December 2011
Publisher : Universitas Ahmad Dahlan

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Abstract

Lighting generally consumed 25%-50% of total electricity consumption in a building. Nowadays, the building lighting source is dominated by the use of fluorescent lamps. The previous technical papers by other researchers had focused on power density control of incandescent lamps, which is now rarely used, unconsidered national standard as control reference value, and required a high-cost in investment. By these reasons, this paper proposes a building lighting system based on fuzzy logic scheme to automate fluorescent lamps in order to achieve illumination according to Indonesian National Standard (SNI). The input variables were indoor lighting, inference from outdoor lighting, and occupancy. The output variable was the required illumination to achieve the standard. The required illumination determined the number of lamps that had to be turned on. In the experiment result, a classroom illumination of lighting without controller in workdays was about 350 lux, while with the proposed controller it varied between 250300 lux close to the SNI, i.e. 250 lux. Meanwhile, with the proposed controller the electricity consumption for a classroom was 75% lower than the lighting without controller.
Manajemen Daya Listrik dengan Sistem Automatic Transfer and Synchronization Switch berbasis PLC Supriono, Supriono; D. Panjaitan, Seno
Jurnal Nasional Teknik Elektro dan Teknologi Informasi (JNTETI) Vol 4, No 3 (2015)
Publisher : Jurusan Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

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Abstract

In the current electric energy supply crisis, Indonesian Government encourages the citizen to save electric energy. Therefore, we should control the electric power consumption in the offices or houses intelligently. Using one of automation technologies, Programmable Logic Controller (PLC), we can control electricity usage in our surroundings. This research focuses on the development of Automatic Transfer Switch (ATS) system to become Automatic Transfer and Synchonization Switch (ATSS). The system can monitor electric power consumption connected to PLN. If the electric power consumption has reached > 80%, then the generator as electric energy back up supply will support in a synchronized way. If electric power load is < 80% then automatically the generator is non-active. ATSS can become an ATS as well. It is an electric energy back up power supply when supply from PLN is cut. The result shows that a 900 watt electric power PLN, with 1.060 watt maximum load, and 300 watt support generator synchonization, can support a load of 1.450 watt.Di tengah keterbatasan suplai energi listrik dan seruan pemerintah untuk menghemat energi listrik, kita dituntut untuk membuat pengendali daya listrik gedung perkantoran atau rumah menjadi lebih “cerdas” dan mampu mengontrol penggunaan daya listrik dengan teknologi otomatisasi menggunakan Programmable Logic Controller (PLC) dalam lingkungannya sehingga tempat tersebut menjadi aman dan nyaman, Makalah ini mengembangkan suatu sistem Automatic Transfer Switch (ATS) menjadi Automatic Transfer And Synchonization Switch (ATSS), sehingga sistem dapat memantau pemakaian daya listrik PLN yang tersambung. Jika daya listrik yang terpakai sudah mencapai > 80%, maka generator sebagai suplai energi listrik cadangan akan membantu dengan cara sinkronisasi. Bila daya beban berkurang kembali menjadi < 80%, secara otomatis generator dinonaktifkan. Sistem ATSS ini juga dapat berfungsi sebagai ATS yaitu sebagai suplai cadangan bila suplai PLN terputus. Dari hasil pengujian diketahui daya listrik PLN sebesar 900 watt jika dibebani maksimum 1.060 watt, dengan bantuan generator 300 watt cadangan dengan cara disinkron mampu memikul daya beban sampai dengan 1.450 watt.