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ANALISIS DESAIN DAN PERHITUNGAN LAMPU PENERANGAN JALAN BERBASIS KENYAMANAN DAN KEAMANAN I Ketut Wijaya; I Made Mataram
Jurnal SPEKTRUM Vol 7 No 4 (2020): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Street lighting is installed for the benefit of the community to help build a creativeeconomy. Street lights in the government's effort to create creativity help the family economy.The method used is counting the number of lights used on the road with a distance of 1500meters and giving road users a questionnaire of comfort and safety. Street lighting is analyzedin an egonomic way to achieve effective, comfortable, safe, healthy and efficient work. Theresults obtained are the light intensity of 12.799 Lux (fulfilling SNI-2008) and the comfort andsafety of 11.067 and 10,300 likes after improving conditions.

ANALISIS KEANDALAN PADA PENYULANG BATU BELIG Fahmi Ramadhan; Rukmi Sari Hartati; I Ketut Wijaya
Jurnal SPEKTRUM Vol 2 No 2 (2015): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (242.209 KB)

Penyulang Batu Belig jaringan memiliki cakupan wilayah yang cukup panjang dan padat sehingga mengakibatkan nilai keandalan jaringan relatif kurang baik, hal itu dapat dilihat dari nilai SAIDI penyulang Batu Belig yaitu 4,0194 h/customer/yr. Keandalan dapat ditingkatkan dengan merekonfigurasi jaringan. Rekonfigurasi jaringan menggunakan 2 alternatif skenario, skenario 1 upaya untuk menentukan dan menambahkan sectionalizer sehingga diperoleh keandalan yang lebih baik. Skenario 2 yaitu membangun penyulang baru di Jalan Peti Tenget yang bersumber dari Gardu Induk Padang Sambian Trafo 2, kemudian menentukan lokasi dibangunnya penyulang baru berdasarkan pembagian beban, setelah itu menentukan jenis kabel yang baik untuk meningkatkan keandalan. Hasil analisis menunjukkan bahwa penempatan sectionalizer yang tepat dan memperoleh indeks keandalan yang memenuhi syarat World Class Service. Skenario 1, didapat 2 titik terbaik berdasarkan perhitungan di lokasi 1 yaitu di Jalan Peti Tenget pada Gardu Distribusi nomor KA2276 dan lokasi 2 yaitu Jalan Peti Tenget pada Gardu Distribusi nomor KA2593. Skenario 2, setelah membangun penyulang baru keandalan penyulang Batu Belig membaik, nilai SAIDI menjadi 0,5501 jam/tahun/pelanggan dan SAIFI sebesar 1,2510 kali/tahun/pelanggan.

ALOKASI PEMBEBANAN OPTIMAL PADA SISTEM PEMBANGKITAN DI BALI i Ketut Wijaya
Jurnal Teknologi Elektro Vol 3 No 2 (2004): (July - December) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.812 KB)

Pada sistem pengoperasian tenaga listrik, komponen biaya operasi terbesar adalah biaya bahan bakar. Oleh karenanya efisien pemakaian bahan bakar sangat besar pengaruhnya terhadap penghematan biaya operasi. Pengalokasian pembebanan pembangkit yang optimal merupakan suatu usaha untuk meminimumkan biaya operasi pada sistem tenaga listrik, tanpa melanggar persyaratan operasi.Dalam penelitian ini, untuk menghitung alokasi pembebanan unit-unit pembangkit yang beroperasi digunakan algoritma optimasi yaitu; Gradient Projection Method (GPM).Dengan menggunakan metode ini untuk Sistem Pembangkitan Bali pada tanggal 31 Desember 2003, selama lima jam diperoleh penurunan biaya bahanbakar yang cukup signifikan.

Effect of Enhanced Air Temperature (extreme heat), and Load of Non-Linear Against the Use of Electric Power I Ketut Wijaya
Jurnal Teknologi Elektro Vol 14 No 2 (2015): (July - December) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Usage Electric power is very easy to do, because the infrastructure for connecting already available and widely sold. Consumption electric power is not accompanied by the ability to recognize electric power. The average increase of electricity power in Bali in extreme weather reaches 10% in years 2014, so that Bali suffered power shortages and PLN as the manager of electric power to perform scheduling on of electric power usage. Scheduling is done because many people use electric power as the load of fan and Air Conditioner exceeding the previous time. Load of fan, air conditioning, and computers including non-linear loads which can add heat on the conductor of electricity. Non-linear load and hot weather can lead to heat on conductor so insulation damaged and cause electrical short circuit. Data of electric power obtained through questionnaires, surveys, measurement and retrieve data from various parties. Fires that occurred in 2014, namely 109 events, 44 is event caused by an electric short circuit (approximately 40%). Decrease power factors can cause losses of electricity and hot. Heat can cause and adds heat on the conductor electric. The analysis showed understanding electric power of the average is 27,700 with value between 20 to 40. So an understanding of the electrical power away from the understand so that many errors because of the act own. Installation tool ELCB very necessary but very necessary provide counseling of electricity to the community.

PENGGUNAAN DAN PEMILIHAN PENGAMAN MINI CIRCUIT BREAKER (MCB) SECARA TEPAT MENYEBABKAN BANGUNAN LEBIH AMAN DARI KEBAKARAN AKIBAT LISTRIK I Ketut Wijaya
Jurnal Teknologi Elektro Vol 6 No 2 (2007): (July - December) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (114.785 KB)

Diperlukan suatu penelitian tentang alat pengaman yang sederhana dan sangat diperlukan untuk menjaga instalasi rumah agar menjadi aman. Tidak jarang akibat ketidaktahuan tentang listrik akan berakibat patal. Alat pengaman sederhana ini Mini Circuit Breaker atau MCB banyak dijual dipasaranYang menjadi masalah adalah jika membeli suatu alat pengaman MCB : harus tahu kapasitas, berapa harga, kwalitas, dilihat secara seksama dan bila perlu dicoba. Begitu banyak macam dan ragam merek dari alat pengaman MCB ini, sehingga perlu suatu penelitian, betulkah alat pengaman ini dapat andal dan aman jika dipergunakan. Penelitian mempergunakan MCB MG, MCB Daiko dan MCB Kingâ€™s. Berdasarkan hasil penelitian yang dilakukan dengam beban yang sama pada masing-masing kapasitas didapat hasil selisih waktu putus dantara MCB MG 2A dan MCB Daiko 2A sebesar (109,800 Â± 31,428) detik dan t = 0,001. Pada MCB MG 4A dan MCB Kingâ€™s 4A didapat selisih waktu putus sebesar (126 Â± 64,293) detik dan t = 0,012. Untuk MCB MG 6A dan MCB Kingâ€™s 6A didapatselisih waktu putus sebesar (126,920 Â± 12,982) detik dengan t = 0,000. Sedangkan untuk MCB MG 10A dan MCB Kingâ€™s 10A didapat selisih waktu putus sebesar (116,200 Â± 45,899) detik dengan t = 0,005. Keempat nilai penelitianMCB ini menghasilkan nilai yang berbeda dan sangat bermakna. Dari ketiga MCB yang dipergunakan sebagai sampel penelitian hanya MCB MG yang memiliki waktu putus sedangkan MCB Daiko dan MCB Kingâ€™s memiliki waktu putus = 0 detik (gagal putus). Dengan demikian dari ketiga MCB yang mengalami penelitian hanya MCB MG yang pantas sebagai alat pengaman. Cara memilih alat pengaman sebaiknya dipilih secara seksama, memeriksa kapasitas, merek, kwalitas dan alat pengaman MCB dipilih tidak berdasarkan harga yang murah

Design of Liquid Waste Aerator Control Based on Fuzzy Logic I Made Mataram; I Ketut Wijaya
Journal of Electrical, Electronics and Informatics Vol 3 No 2 (2019): JEEI (August 2019)
Publisher : Institute for Research and Community Services Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JEEI.2019.v03.i02.p04

Abstrak - Liquid waste is the result of liquid production which is no longer used, so it must be processed and managed so as not to cause pollution and decrease in environmental quality. The biological wastewater treatment system can use the services of decomposing bacteria. This performance is greatly influenced by several factors, including the amount of waste water, the level of impurities, the availability of oxygen (O2), the type of dirt and so on. Parameters used as standard control of BOD and COD liquid waste standards meet the standards. An aerator in the form of an air pump is used to disperse high-pressure air in liquid waste containing oxygen in the process of aeration effluence, so that when air rises to the surface of the water oxygen binding will occur. The operation of the aerator is generally done manually, so that there is a waste of use of electrical energy. This paper discusses the design of an aerator operating control system on waste quality standards using one input fuzzy logic controller and one output. The main component of the hardware is the Uno type Arduino microcontroller used, with the sensor input in the form of COD and output in the form of long working hours of the aerator. The results obtained indicate that the control device is able to reduce the use of electrical energy by 31.03% and can work well based on the value of small deviations and controls capable of working at a set point of 6-10 hours.

Modelling Fuzzy Logic Type-2 for Liquid Waste Control of Aerator Machine I Made Mataram; I Ketut Wijaya
Journal of Electrical, Electronics and Informatics Vol 6 No 1 (2022): JEEI (December 2022)
Publisher : Institute for Research and Community Services Udayana University

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Liquid waste cannot be disposed of directly, so it must be processed so as not to cause pollution to the surrounding environment. Both BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) treatment, oxygen is also required so that the quality of the liquid waste is safe for the environment. Liquid waste treatment mostly utilizes aerators to produce high pressure air in liquid waste containing oxygen (O2). The problem that occurs in most wastewater treatment is the determination of the working time of the aerator, resulting in excessive use of electrical energy, but the results of the waste are still within unsafe limits. In general, the operating time of the aerator is manually, this causes the use of electrical energy to be wasteful. This research was conducted, how to develop a control system design for aerator operating time on the quality of liquid waste. The development of the control system used is Sugeno interval fuzzy logic type-2 with 2 (two) input types of Gauss membership function. The advantage of interval fuzzy logic type-2 over type-1 fuzzy logic is the ability to provide more accurate output for higher input uncertainty. The input variables used are waste volume and COD reduction, while the output is the aerator's operating time. The results obtained in the system design can be applied properly and in accordance with the setting point with an average aerator operating time of 6.8 hours and can reduce the use of electrical energy by 38.2%.

Model Case Based Learning Berbantuan Video Kontekstual terhadap Kemampuan Literasi Sains dan Keterampilan Berpikir Kreatif dalam Pembelajaran Fisika Wijaya, I Ketut; Santyasa, I Wayan; Parwati, Ni Nyoman
Jurnal Media dan Teknologi Pendidikan Vol. 4 No. 2 (2024): April
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jmt.v4i2.79930

Penelitian ini dilatarbelakangi oleh hasil PISA dan TIMSS yang menunjukkan bahwa kemampuan literasi sains dan kemampuan pemecahan masalah dalam bidang sains masih rendah. Tujuan penelitian ini adalah untuk mendeskripsikan perbedaan pengaruh model case based learning berbantuan video kontekstual terhadap kemampuan literasi sains dan keterampilan berpikir kreatif siswa dalam pembelajaran fisika kelas XI SMA. Penelitian ini merupakan penelitian eksperimen semu dengan rancangan non equivalent pretest-posttest control group design. Populasi penelitian sebanyak 167 peserta didik, dengan sampel sebanyak 102 peserta didik yang ditetapkan dengan teknik simple random sampling. Data kemampuan literasi sains dan keterampilan berpikir kreatif fisika dikumpulkan dengan tes essay. Analisis data menggunakan uji statistik Multivariat Analysis of Covarian (MANCOVA) satu jalur. Pengujian hipotesis menggunakan taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa (1) terdapat perbedaan kemampuan literasi sains dan keterampilan berpikir kreatif fisika secara bersama-sama antara kelompok model case based learning berbantuan video kontekstual, model case based learning dan model direct instruction; (2) terdapat perbedaan kemampuan literasi sains fisika dan keterampilan berpikir kreatif antara kelompok model case based learning berbantuan video kontekstual, model case based learning dan model direct instruction. Sehingga dapat disimpulkan bahwa model case based learning berbantuan video kontekstual secara signifikan berpengaruh terhadap kemampuan literasi sains dan keterampilan berpikir kreatif dalam pembelajaran fisika kelas XI SMA.

KONTROL FREKUENSI BEBAN MENGGUNAKAN METODE ADAPTIVE NEURO FUZZY INFERENCE SYSTEM (ANFIS) PADA SISTEM HYBRID WIND MIKROHIDRO DAN DIESEL Febryanto Simorangkir, Walter Willy Metyu; Mataram, I Made; Wijaya, I Ketut
Jurnal SPEKTRUM Vol 10 No 4 (2023): Jurnal SPEKTRUM
Publisher : Program Studi Teknik Elektro UNUD

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/SPEKTRUM.2023.v10.i04.p38

This study aims to analyze and compare the performance of three frequency load controller methods in a hybrid generator consisting of three types of energy generation, namely microhydro, diesel and wind. The controller methods being compared are the PID (Proportional Integral Derivative) method, ANFIS (Adaptive Neuro-Fuzzy Inference System), and Fuzzy. This analysis was carried out to improve the efficiency and stability of the hybrid generating system by optimizing the frequency load controller. Frequency instability can occur due to load fluctuations, changes in environmental conditions, or system disturbances. Therefore, the use of an effective and adaptive controller method is very important in maintaining the stability and reliability of the hybrid generator system. The analytical method used in this study involved data collection and computer modeling. The required data includes information on load variations, energy production, and environmental conditions. Furthermore, the PID, ANFIS, and Fuzzy methods are applied to the data to build a frequency load controller model. The results of the analysis show that the three controller methods have different performance in maintaining frequency stability in the hybrid generator system. The PID method provides a fast and accurate response to load fluctuations, but is less adaptive to environmental changes. While the ANFIS method is able to adapt well to changes in system conditions, it requires time for model training. Fuzzy methods can provide control that is more adaptive and tolerant to disturbances, but may require more complex tuning. However, in general, the use of intelligent controller methods such as ANFIS and Fuzzy can improve the performance of hybrid generators by producing more adaptive and stable controls. This research has important implications for the development of more efficient and reliable hybrid power systems. By choosing the right controller method, hybrid power plants can provide energy in a more stable and environmentally friendly manner, and reduce dependence on limited fossil resources. Therefore, this research can make a significant contribution to the development of renewable energy and sustainable development in the future.

Effect of Enhanced Air Temperature (extreme heat), and Load of Non-Linear Against the Use of Electric Power I Ketut Wijaya
Jurnal Teknologi Elektro Vol 14 No 2 (2015): (July - December) Majalah Ilmiah Teknologi Elektro
Publisher : Program Studi Magister Teknik Elektro Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/MITE.2015.v14i02p12

Usage Electric power is very easy to do, because the infrastructure for connecting already available and widely sold. Consumption electric power is not accompanied by the ability to recognize electric power. The average increase of electricity power in Bali in extreme weather reaches 10% in years 2014, so that Bali suffered power shortages and PLN as the manager of electric power to perform scheduling on of electric power usage. Scheduling is done because many people use electric power as the load of fan and Air Conditioner exceeding the previous time. Load of fan, air conditioning, and computers including non-linear loads which can add heat on the conductor of electricity. Non-linear load and hot weather can lead to heat on conductor so insulation damaged and cause electrical short circuit. Data of electric power obtained through questionnaires, surveys, measurement and retrieve data from various parties. Fires that occurred in 2014, namely 109 events, 44 is event caused by an electric short circuit (approximately 40%). Decrease power factors can cause losses of electricity and hot. Heat can cause and adds heat on the conductor electric. The analysis showed understanding electric power of the average is 27,700 with value between 20 to 40. So an understanding of the electrical power away from the understand so that many errors because of the act own. Installation tool ELCB very necessary but very necessary provide counseling of electricity to the community.

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