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ANALISIS PENGGUNAAN BALLAST ELEKTRONIK UNTUK PENGHEMATAN ENERGI LISTRIK PADA BEBAN PENERANGAN Suroso, Suroso; Winasis, Winasis; Permana, Satria Ardhi
TRANSMISI Vol 16, No 2 (2014): TRANSMISI
Publisher : TRANSMISI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.432 KB)

Abstract

Abstrak   Lampu neon tabung masih banyak digunakan masyarakat umum meskipun telah diciptakan lampu neon kompak yang menggantikan lampu pijar. Lampu neon kompak memiliki efisiensi tinggi karena menggunakan ballast elektronik, sedangkan lampu neon tabung yang umum dipakai masih menggunakan ballast elektromagnetik. Makalah ini menganalisa tingkat penghematan yang didapatkan saat ballast elektromagnetik diganti dengan ballast elektronik pada beban penerangan lampu neon, khususnya untuk rangkaian lampu neon tabung 18 Watt dan 36 Watt di RSUD Saras Husada Purworejo. Analisa kedua jenis ballast meliputi perbandingan konsumsi daya, faktor daya, analisa segi ekonomis, tingkat pencahayaan, harmonisa, dan bentuk gelombang arus yang ditarik oleh beban lampu dari sumber listrik PLN. Dari data yang diperoleh didapatkan bahwa lampu neon dengan ballast elektronik konsumsi dayanya lebih rendah, faktor daya lebih tinggi, dan biaya listrik per bulannya lebih hemat dibandingkan dengan lampu neon yang memakai ballast elektromagnetik. Namun dari data pengukuran intensitas pencahayaan ditemukan terjadi penurunan kuat pencahayaan untuk lampu yang menggunakan ballast elektronik. Untuk data harmonisa arus yang ditarik dari sumber diperoleh bahwa lampu yang menggunakan ballast elektronik menarik arus dengan kandungan komponen harmonisa yang lebih tinggi dibandingkan dengan lampu dengan ballast elektromagnetik. Kata kunci : energi listrik, efisiensi, ballast elektronik     Abstract   Fluorescent tube lamps are still widely used in spite of the compact fluorescent lamp has been introduced to replace the incandescent lamps. Compact fluorescent lamps use electronic ballast with higher efficiency, however many of the installed fluorescent tube lamps still use electromagnetic ballasts. This paper analyzes the level of savings obtained when the electromagnetic ballasts replaced by electronic ballasts in the fluorescent tube lamp circuits of 18 Watt and 36 Watt installed at Saras Husada Hospital Purworejo. Comparison analysis of both types of ballast was carried out, i.e. the ratio of power consumption, power factor, economic analysis, illumination levels, harmonics, and waveform. The results showed that the lamp with electronic ballasts have lower power consumption, better power factor, and cheaper in the electricity cost than the lamp with electromagnetic ballasts. However, a decrease in the level of illumination is found for the lamp with electronic ballast. In the case of harmonic contents of the current drawn from the power grid, the lamp with electronic ballast created a more distortion and harmonic contents of the current.   Keywords : electrical energy, efficiency, electronic ballasts
A Battery-less Grid Connected Photovoltaic Power generation using Five-Level Common-Emitter Current-Source Inverter Suroso, Suroso; Winasis, Winasis; Noguchi, Toshihiko
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 4, No 4: December 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (0.512 KB) | DOI: 10.11591/ijpeds.v4i4.6464

Abstract

Renewable power generation using photovoltaic is very interesting to be developed to deal with the problems of conventional energy sources and environmental issues. The photovoltaic power generation can operate both in stand-alone and grid-connected operations. This paper presents an application of the five-level common-emitter current-source inverter (CE-CSI) for grid connected photovoltaic system without batteries as energy storage system. In the proposed system, the five-level CE-CSI works generating a sinusoidal output current from photovoltaic system to be injected into the power grid. The transformer is used in the system to step-down the grid voltage to meet the voltage level of the photovoltaic system, and also works as a galvanic insulation between the power grid and the inverter system. Two conditions of the power grid voltage, i.e. a pure sinusoidal and a distorted power grid, are tested through computer simulation using PSIM software. Furthermore, experimental test result of the five-level inverter is also presented. The test results show that the five-level CE-CSI works well injecting a sinusoidal current into the power grid with low harmonic contents, and with unity power factor operation. The results also show that the distorted grid voltage affects the harmonic contents of the current injected by the inverter.
PENGOPTIMALAN OPERASI PEMBANGKIT LISTRIK TENAGA HIBRIDA SURYA - ANGIN UNTUK MENGURANGI EXCESS ELECTRICITY MENGGUNAKAN MIX INTEGER LINEAR PROGRAMMING Winasis, Winasis; Rosyadi, Imron; Sarjiya, Sarjiya
TRANSMISI Vol 17, No 4 Oktober (2015): TRANSMISI
Publisher : Jurusan Teknik Elektro Fakultas Teknik – Universitas Diponegoro

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Abstract

Salah satu upaya yang dilakukan dalam pemenuhan kebutuhan energi listrik  adalah dengan memanfaatkan sumber energi baru dan terbarukan (EBT) seperti : energi matahari dan energi angin sebagai Pembangkit Listrik Tenaga Hibrida (PLTH). Penelitian ini bertujuan menganalisis pengoptimalan pengoperasian sistem PLTH Surya Angin dengan studi  kasus pada PLTH Pantai Baru Bantul menggunakan metode Mix Integer Linear Programming. pengoptimalan bertujuan untuk meminimalkan excess electricity dan memaksimalkan pemanfaatan potensi energi terbarukan dengan memperhatikan batasan-batasan yang terkait dengan kapasitas modul sel surya, kapasitas turbin angin, kapasitas inverter, dan kendala baterai. Permasalahan optimisasi dan batasan operasi diformulasikan sebagai model Mix Integer Linear Programming (MILP) dan diselesaikan menggunakan software optimisasi Tomlab CPLEX. Simulasi model optimisasi menggunakan data pembangkit listrik hibrida surya angin Pantai Baru dilakukan dengan skenario penambahan beban non-critical (dummy) pada sistem pembangkit hibrida. Berdasarkan hasil simulasi didapatkan nilai excess electricity dapat dikurangi dan pemanfaatan energi pada beban dapat dimaksimalkan.   Kata kunci: excess electricity, MILP, pembangkit listrik tenaga hibrida, pengoptimalan
Optimasi Operasi Pembangkit Listrik Tenaga Air (PLTA) Menggunakan Linear Programming Dengan Batasan Ketersediaan Air Winasis, Winasis; Prasetijo, Hari; Setia, Giri Angga
Dinamika Rekayasa Vol 9, No 2 (2013): Dinamika Rekayasa - Agustus 2013
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (434.379 KB) | DOI: 10.20884/1.dr.2013.9.2.67

Abstract

One of hydro power plant operational problem is how to maximize available water resouces to gather optimal electric power generation. Water availability which is limited and can be stored in a reservoir will influence electrical energy generated by the plant. This paper present a new approach of short term optimization of hydro power plant operation. The objective function is to maximize energy which is produced by power plant on scheduling operation period, with consider water resource availability in reservoir as operational constraint. The optimization problem is formulated in Linear Programming Method, in which this method is a commonly used to solve optimization problem in hydro power plant. Based on simulation results on Ketenger Hydro Power Plant using water flow data on June 1st 2013 shows that this method can be used to solve hydro power plant operation optimization problem well. Electrical energy as main objective function is maximized and all prevailing constrain is satisfied. On this short term operation (24 hour) simulation, total energy can be produced is 96121,55 kWh, or 1427 kWh (1,51%) greater comparing with real generation condition with 96694 kWh.
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 | Full PDF (1027.452 KB) | 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
Pengaruh Pemasangan Kapasitor Shunt Terhadap Konsumsi Daya Aktif Instalasi Listrik Winasis, Winasis; Nugraha, Azis Wisnu Widhi
Dinamika Rekayasa Vol 3, No 1 (2007): Dinamika Rekayasa - Februari 2007
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.156 KB) | DOI: 10.20884/1.dr.2007.3.1.126

Abstract

The application of shunt capacitor is an alternative solution in improving power factor on electrical installations, so the use of electric energy become more efficient. Here we hope that capacitor will give both technical and economical benefit from decreasing power consumption and electric bill. Contributions of installing shunt capacitor to active power consumption on residential installation, which one of electrical bill has been studied.Based on experimental using 2-14 F capacitors on installation model with inductive load show that shunt capacitors decrease total apparent power (VA) up to 58% dependent of its original power factor, but increase active power consumption (up to10 W). From this, installing shunt capacitors will increase cost of kWh that consumer must paid. Application of shunt capacitors will give any benefits to residential consumer in case releasing power capacity installed.Key word: capacitor, shunt, active power, consumption
Desain Sistem Monitoring Sistem Photovoltaic Berbasis Internet of Things (IoT) Winasis, Winasis; Nugraha, Azis Wisnu Widhi; Rosyadi, Imron; Nugroho, Fajar Surya Tri
Jurnal Nasional Teknik Elektro dan Teknologi Informasi (JNTETI) Vol 5, No 4 (2016)
Publisher : Jurusan Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1058.033 KB) | DOI: 10.22146/jnteti.v5i4.281

Abstract

Photovoltaic (PV) system is an alternative solution to provide electricity at rural area. A common implementation problem at rural area is the PV power plant cannot be monitored continuously. This research proposes wireless node for PV power plant monitoring based on Internet of Things (IoT). Wireless node is aimed for monitoring electrical parameter from the PV and environmental parameter (temperature and solar radiation). Measured parameters are sent to the cloud database to be accessible via the internet. The device consist of a sensor module, signal processing module and wireless transceiver module. Wireless transceiver module is an ESP8266 for connection to the IoT gateway and to the internet. Unidirectional ACS758 is used for current sensing, which give a reading error of 0.091 Ampere. For voltage sensing, a voltage divider is used. It has a reading error of 0.063 Volt. DHT22 is used for temperature sensing. Its reading error is 0.0097 °C. The radiation sensor has a reading error of 0.3 W/m2. Proposed design has been tested at Laboratorium of Energy Convertion, Electrical Engineering Department, UNSOED, on 300Wp PV system. This device provides reliable monitoring data transmission with average and deviation in delivery time consecutively 57 seconds and 2 seconds.
PENANAMAN SIKAP ANAK USIA DINI MELALUI PERMAINAN EDUKATIF Winasis, Winasis
SOSIOHUMANIORA: Jurnal Ilmiah Ilmu Sosial dan Humaniora Vol 5, No 2 (2019)
Publisher : Universitas Sarjanawiyata Tamansiswa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.53 KB) | DOI: 10.30738/sosio.v5i2.5335

Abstract

Penelitian ini bertujuan untuk mengetahui: (1) manajemen penanaman sikap anak usia dini melalui permainan edukatif; (2) kendala dan pendukung manajemen penanaman sikap anak usia dini melalui permainan edukatif; dan (3) hasil manajemen penanaman sikap anak usia dini melalui permainan edukatif. Penelitia ini menggunakan pendekatan kualitatif. Sumber data penelitian ini adalah dari; (1) informan; (2) kegiatan dan aktivitas; dan (3) dokumen. Teknik pengumpulan data dalam penelitia ini adalah; (1) wawancara; (2) observasi; dan (3) studi dokumen. Pengujian keabsahan data atau uji validitas data dalam penelitian ini dilakukan melalui triangulasi. Analisis data dalam penelitian ini adalah reduksi yaitu merangkum untuk memfokuskan hal yang penting. Langkah selnjutnya mendisplay, yaitu menyajikan data. Dan selanjutnya adalah menarik verification atau menarik kesimpulan. Dari analisis data dan pembahasan diperoleh kesimpulan bahwa dengan manajemen penanaman sikap anak usia dini melalui permainan edukatif anak dapat;(1) menerapkan  sikap spiritual yaitu percaya adanya Tuhan melalui ciptaannya, dan sikap rasa syukur kepada Tuhan; (2) menerapkan sikap sosial antara lain sikap ingin tahu, kreatif, percaya diri, disiplin, mandiri, toleransi, tanggungjawab, dan jujur.Kata kunci: manajemen, penanaman sikap, anak usia dini, permainan edukatif
A Battery-less Grid Connected Photovoltaic Power generation using Five-Level Common-Emitter Current-Source Inverter Suroso, Suroso; Winasis, Winasis; Noguchi, Toshihiko
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 4, No 4: December 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (71.575 KB)

Abstract

Renewable power generation using photovoltaic is very interesting to be developed to deal with the problems of conventional energy sources and environmental issues. The photovoltaic power generation can operate both in stand-alone and grid-connected operations. This paper presents an application of the five-level common-emitter current-source inverter (CE-CSI) for grid connected photovoltaic system without batteries as energy storage system. In the proposed system, the five-level CE-CSI works generating a sinusoidal output current from photovoltaic system to be injected into the power grid. The transformer is used in the system to step-down the grid voltage to meet the voltage level of the photovoltaic system, and also works as a galvanic insulation between the power grid and the inverter system. Two conditions of the power grid voltage, i.e. a pure sinusoidal and a distorted power grid, are tested through computer simulation using PSIM software. Furthermore, experimental test result of the five-level inverter is also presented. The test results show that the five-level CE-CSI works well injecting a sinusoidal current into the power grid with low harmonic contents, and with unity power factor operation. The results also show that the distorted grid voltage affects the harmonic contents of the current injected by the inverter.DOI: http://dx.doi.org/10.11591/ijpeds.v4i4.6464
Optimalisasi Jangka Menengah PLTA Memperhatikan Ketersediaan Air Menggunakan Linear Programming Winasis, Winasis; Prasetijo, Hari; Setia, Giri Angga
Jurnal Nasional Teknik Elektro dan Teknologi Informasi (JNTETI) Vol 3, No 2 (2014)
Publisher : Jurusan Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.636 KB) | DOI: 10.22146/jnteti.v3i2.70

Abstract

Abstact—Hydro power plant is kind of electric power generation which utilize energy from water fall to produce electricity. One of its operational problem is limited water supply and available water which can be stored in reservoir. This limitation will affect the electrical energy can be generated by the hydro power plant. This paper present a methodology of medium term optimization of hydro power plant operation to maximize its energy production with considering water availability in reservoir as operational constraint. Operation optimization problem is formulated in Linear Programming model and then solved using Tomlab optimization software. Simulations using water flow data of Ketenger Hydro Power Plant on June 2013 show that this method can be used to solve hydro power plant operation optimization problem well. Based on the simulation results with a period of 720 hours (1 month) the total electrical energy that can be generated is equal to 2990.8 MWh. This value is 69,6 MWh (or 2,3%) greater when compared to the real condition of electrical power generated in June with ammount of 2921,2 MWh.Intisari—Pembangkit Listrik Tenaga Air (PLTA) merupakan jenis pembangkit yang memanfaatkan tenaga jatuh air untuk menghasilkan energi listrik. Salah satu masalah operasi PLTA adalah pasokan air dan ketersediaan air yang terbatas dan dapat disimpan dalam reservoir atau kolam tando. Keterbatasan ini akan mempengaruhi energi listrik yang dapat dibangkitkan oleh PLTA. Penelitian ini menyajikan metodologi optimalisasi operasi jangka menengah PLTA untuk memaksimalkan energi yang dihasilkan PLTA dengan memperhatikan ketersediaan air di reservoir sebagai batasan operasinya. Permasalahan optimasi operasi PLTA ini diformulasikan ke dalam model Linear Programming dan diselesaikan dengan software optimasi Tomlab. Simulasi menggunakan data debit PLTA Ketenger Baturaden pada bulan Juni 2013 menunjukkan bahwa metode ini dapat memecahkan permasalahan optimalisasi operasi PLTA dengan baik. Berdasarkan hasil simulasi dengan periode 720 jam (1 bulan) energi listrik total yang dapat dihasilkan adalah sebesar 2990,8 MWh. Nilai ini lebih besar 69,6 MWh (2,3%) jika dibandingkan dengan kondisi real energi listrik di bulan Juni sebesar 2921,2 MWh.Kata Kunci— optimalisasi, jangka menengah, ketersediaan air, PLTA, Linear Programming.