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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) International Journal of Reconfigurable and Embedded Systems (IJRES) Transmisi: Jurnal Ilmiah Teknik Elektro Jurnal Teknik Elektro TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Ilmiah Dinamika Rekayasa (DINAREK) JTERA (Jurnal Teknologi Rekayasa) TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol KURVATEK Jurnal Pendidikan dan Teknologi Indonesia Jurnal Pengabdian Masyarakat Indonesia Jurnal Nasional Teknik Elektro dan Teknologi Informasi Jurnal Rekayasa elektrika
Winasis Winasis
Teknik Elektro, Universitas Jenderal Soedirman, Indonesia
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Public Health Social Sciences

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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 : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (703.546 KB) | DOI: 10.12777/transmisi.17.4.186-193

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
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 : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (506.432 KB) | DOI: 10.12777/transmisi.16.2.99-105

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
PERENCANAAN SISTEM PHOTOVOLTAIC BEBAN ARUS SEARAH TERHUBUNG JALA-JALA Winasis; Muhammad Syaiful Haliim; Hari Prasetijo
KURVATEK Vol 5 No 1 (2020): April 2020
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v5i1.1565

Abstract

Photovoltaic (PV) systems utilize solar energy as a renewable energy source. A PV system can be connected to utility networks to ensure reliability. This study proposes a PV system model with direct current load on residential installation connected to utility grid. Optimal analysis of PV systems is done by comparing the architecture, energy production, losses, reliability and economic aspect considering the constraints of renewable energy fraction and capacity shortage. The results show PV system connections with grid reduce the capacity requirements of photovoltaic modules and batteries with a good level of reliability. The grid connected system equipped with batteries has the best level of renewable energy utilization with an excess electricity value of 2.19%. From an economic aspect, the system with the lower renewable energy fraction has less energy costs. This is due to the high price of PV components compared to the price of electricity from utility. Keyword : photovoltaic system, DC load, grid connected, optimal, utilization, reliability
Improving output current of inductor-cell based five-level CSI using hysteresis current controller Suroso Suroso; Winasis Winasis; Priswanto Priswanto; Sholikhah Sholikhah
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 12, No 1: March 2021
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v12.i1.pp249-257

Abstract

Current source inverter (CSI) operates to output a specified ac current waveform from dc current sources. Talking about power quality, harmonics distortion of ac waveform is a problem of an inverter circuit. Generating a multilevel current waveform will have less harmonics content than a traditional three-level current waveform. In addition to non-ideal conditions of power switches, i.e. voltage drop in diodes, conductors or controlled switches, the performance of current controller applied in an inverter circuit will considerably affect the ac waveform quality produced by inverter circuit. This paper presents and discusses application of hysteresis current controller in the five-level H-bridge with inductor-cell current source inverter. The current controller performance was compared with the proportional integral current controller. Some test results are presented and discussed to explore the advantages of hysteresis controller in reducing the current ripple and harmonics distortion of output current.
A Battery-less Grid Connected Photovoltaic Power generation using Five-Level Common-Emitter Current-Source Inverter Suroso Suroso; Winasis Winasis; Toshihiko Noguchi
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

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
Three-level modified sine wave inverter equipped with online temperature monitoring system Suroso Suroso; Ahmad Khafidz; Winasis Winasis; Hari Siswantoro
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 18, No 2: April 2020
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v18i2.14848

Abstract

Research and development on power converters are getting more interesting in recent years. It is also buttressed by rapid development in related fields, such as power semiconductor, digital advanced control, magnetic material and use of power converters in many sectors.  In addition to the power quality matter, simplicity of inverter circuits is another notable aspect that should be considered toward economical feature. Adding the quantity of power switches will increase complexity of overall inverter circuits. This paper discusses a circuit configuration of three-level modified sine wave neutral point shorted power inverter which work converting dc power into ac power with less number of power switches. To improve the performance and feature of inverter circuits, the inverter was equipped with online temperature monitoring, and overheat protection based on internet of things. Adding online temperature monitoring system makes easier in monitoring of circuits to prevent the excessive faults of inverter. Some computer based test data are shown and discussed. Furthermore, experiment results of the inverter prototype, and its online monitoring system are presented. Test outputs demonstrated that the proposed system worked properly generating a three-level modified sine wave voltage, with online temperature monitoring system.
Power loss analysis of current-modules based multilevel current-source power inverters Suroso Suroso; Winasis Winasis; Daru Tri Nugroho; Wahyu Tri Cahyanto
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 17, No 1: February 2019
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v17i1.11601

Abstract

A power loss analysis of multilevel current-source inverter (MCSI) circuits developed from two basic configurations of three-level current-source inverters, i.e. H-bridge and common-emitter inverter configurations is presented and discussed. The first circuit topology of the MCSI is developed by using DC current modules connected to the primary three-level H-bridge inverter. The second MCSI circuit is created by connecting the current-modules to a three-level common-emitter inverter. The DC current modules work generating the intermediate level waveform of the inverter circuits. Power loss analysis of the both topologies was carried out to explore the efficiency performance of the inverter circuits. The results showed that for the H-bridge and common-emitter MCSI using DC current modules, the amount of conduction losses in the inverter circuits could be diminished when the level number of AC output current increase. The measurement test results have also proved that using these MCSI topologies, the power conversion efficiency will also increase.
DESAIN SISTEM MONITORING NIRKABEL BERBASIS WEBSITE UNTUK PEMANTAUAN BATERAI DAN BEBAN PEMBANGKIT LISTRIK HIBRIDA SURYA - ANGIN Winasis Winasis; Azis Wisnu Widhi Nugraha; Imron Rosyadi
Jurnal Teknik Elektro Vol 5, No 2 (2016): Jurnal Teknik Elektro
Publisher : Situs resmi ITP Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1153.082 KB)

Abstract

Pembangkit Listrik Tenaga Hibrida (PLTH) energi terbarukan merupakan alternatif penyediaan tenaga listrik di daerah. Salah satu permasalahan pada PLTH adalah tidak terpantaunya pengoperasian pembangkit secara kontinu dan berkelanjutan. Penelitian ini menyajikan prototipe sistem monitoring nirkabel baterai dan beban pada PLTH surya – angin berbasis website yang mampu memantau secara remote kinerja PLTH. Rancangan perangkat keras sistem monitoring meliputi : perangkat wireless node pemantauan baterai, perangkat wireless node pemantauan beban dan perangkat pusat pamantauan. Besaran energi listrik pada baterai dan beban meliputi : tegangan, arus, daya, frekuensi, dan faktor daya diukur dan diproses pada node pemantauan untuk dikirimkan ke pusat pemantauan secara nirkabel melalui wireless tranceiver menggunakan protokol komunikasi 802.11 b/g/n. Pengiriman data hasil pemantauan ke jaringan internet dilakukan oleh pusat pemantauan melalui sebuah modem GSM. Rancangan prototipe sistem monitoring yang diusulkan diimplementasikan pada skala laboratorium dengan menggunakan DC power supply (battery charger) sebagai sumber arus DC, baterai nominal 2x12V dan inverter 1 kW. Hasil pengujian menunjukkan bahwa keseluruhan perangkat node monitor dan sentral monitor dapat bekerja dengan baik.
Pengaruh Pemasangan Kapasitor Shunt Terhadap Konsumsi Daya Aktif Instalasi Listrik Winasis Winasis; Azis Wisnu Widhi Nugraha
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 | 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
Pengaruh Arus Harmonisa Pada Unjuk Kerja Sistem Open-Loop Variable Speed Drive Motor Induksi Menggunkanan Inverter Suroso Suroso; Winasis Winasis; Daru Tri Nugroho; Sebastian Adi Prakoso
Dinamika Rekayasa Vol 12, No 1 (2016): Jurnal Ilmiah Dinamika Rekayasa Februari 2016
Publisher : Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | 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
Co-Authors Abu Bakar, Afarulrazi Agung Mubyarto Ahmad Khafidz Ambariyanto Ambariyanto Arief Wisnu Wardhana, Arief Wisnu Azis Wisnu Widhi Nugraha Bagus Karnanto Daru Tri Nugroho Daru Tri Nugroho Fajar Surya Tri Nugroho Giri Angga Setia Hari Prasetijo Hari Prasetijo Hari Prasetijo Hari Siswantoro Hari Siswantoro, Hari Imron Rosyadi Muhammad Syaiful Aliim Mulki Indana Zulfa Nugroho, Fajar Surya Tri Prasetyo, Rifqi Sufyan Priswanto Priswanto Priswanto Priswanto, Priswanto Purnomo, Widhiatmoko Herry Purwanto Bekti Santoso, Purwanto Bekti Rafly Sulthan Mahdy Retno Supriyanti Rosyadi, Imron Sarjiya Satria Ardhi Permana Sebastian Adi Prakoso Sholikhah Sholikhah Suroso Suroso Suroso Suroso Suroso Suroso Suroso Suroso Suroso Suroso Toshihiko Noguchi Wahyu Mulyo Utomo Wahyu Tri Cahyanto Widhiatmoko Herry Purnomo Yanuar Haryanto Yogi Ramadhani