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Single Phase PV Grid-Connected in Smart Household Energy System with Anticipation on Fault Conditions Feri Yusivar; Rian Suryadiningrat; Aries Subiantoro; Ridwan Gunawan
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 4, No 1: March 2014
Publisher : Institute of Advanced Engineering and Science

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Abstract

This paper proposes an algorithm of Smart household energy systems to anticipate fault conditions in power system grid. Single phase PV grid-connected in smart household energy system is a smart system that determines electrical supply conditions to the load in residential electrical system. The smart system is consisted of two voltage source, conventional electricity system from national electricity provider as preferred source and photovoltaic as the alternative source. In smart system, fault conditions can be anticipated by selecting the appropriate voltage sources to supply the load. The condition of smart system can be described in power flow regulation to the load by detection and identification of amplitude, phase angle, and frequency of the voltage source compared to the system reference. The system mechanism is based on detection of voltage source using static transfer switch (STS) with phase locked loop (PLL) as voltage detection algorithm which output is used to determine decision logic algorithm for switching conditions. The results show that conditions of smart power system flow can be obtained based on voltage source selection in decision logic when fault condition occurs.DOI: http://dx.doi.org/10.11591/ijpeds.v4i1.5368
Sistem Pembangkit Laju-Aliran-Rendah Fluida Cair Presisi Tinggi menggunakan Kendali PID HERI SUTANTO; MUHAMMAD SABILA HAQQI; ARIES SUBIANTORO; BENYAMIN KUSUMOPUTRO
Jurnal Elkomika Vol 10, No 3 (2022): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i3.712

Abstract

ABSTRAKPeralatan infus medis seperti syringe pump dan infusion pump semakin banyak digunakan di rumah sakit dan fasilitas-fasilitas kesehatan. Kalibrasi peralatan tersebut sangat krusial dilakukan untuk mengidentifikasi penyimpangan pengukuran dan menghindari kerugian klinis hingga mortalitas. Peralatan tersebut umumnya dikalibrasi dengan metode perbandingan terhadap Infusion Device Analyzer (IDA). Untuk memastikan ketertelusuran kalibrasi tersebut, IDA perlu dikalibrasi, salah satunya dengan metode gravimetrik. Namun, kendala terbesar dalam kalibrasi IDA adalah membangkitkan laju aliran rendah dengan keberulangan yang baik dan kepresisian tinggi. Pada penelitian ini telah dibangun sebuah sistem pembangkit laju aliran rendah fluida cair presisi tinggi menggunakan kendali PID lingkar tertutup dengan kecepatan motor DC sebagai feedback. Hasil pengujian menunjukkan bahwa sistem dapat membangkitkan laju aliran pada rentang ukur 100 ml/jam kemudian turun ke 10 ml/jam. Ketidakpastian pengukuran yang diperoleh antara 0,06% pembacaan sampai 0,24% pembacaan, pada tingkat kepercayaan 95% dengan faktor cakupan k=2. Sistem yang dikembangkan layak digunakan dalam kalibrasi IDA.Kata Kunci: kalibrasi, peralatan infus medis, laju aliran rendah, kendali PID, ketidakpastian pengukuran ABSTRACTMedical infusion such as syringe pump and infusion pump are widely used in hospitals and health facilities. Calibration of the equipments are crucial in order to identify any measurement errors and to avoid clinical losses which may lead to mortality. The equipments are generally calibrated by an Infusion Device Analyzer (IDA). To ensure the traceability of the calibration results, IDA needs to be calibrated, one of which is by the gravimetric methods. However, the biggest problem in the calibration of IDA is generating low flow rates with good repeatability and high precision. In this research, the high-precision liquid low flow rate generator system has been built using a closed-loop PID control with DC motor speed as feedback. The results showed that the system was able to generate low flow rates at 100 ml/h then down to 10 ml/h. The uncertainty of calibrations range were from 0.06% to 0.24% of reading, at 95% confidence level with a coverage factor k=2. Hence, the system is suitable to be used in IDA calibration.Keywords: calibration, medical infusion, low flow rate, PID control, measurement uncertainty
Optimasi Kinerja Fuel Cell pada Sistem Kereta Hibrida menggunakan Metode External Energy Maximization Strategy AGUNG RAMADHAN; ARIES SUBIANTORO; JUAN THOMAS WIJAYA; SYAFIIE SYAMAUN
Jurnal Elkomika Vol 11, No 2 (2023): ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektr
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v11i2.537

Abstract

ABSTRAKDalam sistem sumber daya hibrida, strategi manajemen energi (EMS) pada dasarnya hanya mengatur pembagian daya tanpa mempertimbangkan optimalisasi kinerja sistem. Oleh karena itu pada penelitian ini dirancang EMS berbasis optimasi pada kereta hibrida dengan sumber daya fuel cell (FC), baterai dan superkapasitor dengan metode External Energy Maximization Strategy (EEMS). Strategi ini dirancang untuk memaksimalkan energi yang disuplai oleh baterai dan superkapasitor melalui state of charge (SOC) baterai dan tegangan DC bus sehingga dapat meminimalisasi konsumsi hidrogen dan meningkatkan efisiensi keseluruhan sistem. Hasil simulasi memperlihatkan bahwa strategi ini mampu memaksimalkan kinerja baterai dan superkapasitor. Efisiensi sistem berhasil ditingkatkan menjadi 86,37% dan konsumsi hidrogen berhasil dikurangi 10% dari strategi pembandingnya. State of charge (SOC) baterai juga mampu dipertahankan untuk tetap dalam rentang batas yang telah ditentukan.Kata kunci: EMS, kereta hibrida, fuel cell, baterai, superkapasitor, optimasi ABSTRACTThe energy management strategy (EMS) in a hybrid system essentially only regulates power sharing without considering system performance optimization. This study developed an EMS based on the optimization of hybrid train with fuel cell (FC), battery, and supercapacitor power sources using the External Energy Maximization Strategy (EEMS). This strategy is intended to maximize the energy supplied by battery and supercapacitor through the SOC of the battery and DC bus voltage, thereby reducing hydrogen consumption and increasing overall system efficiency. The simulation results show that this strategy can maximize battery and supercapacitor. The system efficiency was successfully increased to 86.37%, and the hydrogen consumption was reduced by 10% when compared to the comparison strategy. The SOC of the battery can also be kept within a certain range.Keywords: EMS, hybrid train, fuel cell, battery, supercapasitor, optimization