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Journal : Bulletin of Computer Science and Electrical Engineering (BCSEE)

Simulation and Analysis of Distributed Generation Installation on a 20 kV Distribution System Using ETAP 19.0 Arnawan Hasibuan; Firwan Dani; Asran; I Made Ari Nrartha
Bulletin of Computer Science and Electrical Engineering Vol. 3 No. 1 (2022): June 2022 - Bulletin of Computer Science and Electrical Engineering
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25008/bcsee.v3i1.1151

Abstract

Conventional power plants are generally designed on a large scale, centralized, and built far from the load center so that they require transmission and distribution networks to distribute electric power. The condition of the distribution channel's length, the high load supplied, and the increasing number of requests for electrical energy each year affect the quality of distribution of electrical energy. From the above problems, simulation and analysis of the installation of distributed generation are carried out. In installing Distributed Generation, three scenarios are used based on the most significant voltage drop point. The installation of Distributed Generation scenario 1 has an average voltage value of 95.16% or 19.81 kV and an average voltage drop of 9.82% or 1.965 kV, and power losses of 946.69 Kw, where losses power loss was reduced by 17.8% or 733.7 kW. The installation of Distributed Generation scenario 2 has an average voltage value of 95.84% or 19.17 kV and an average voltage drop of 4.16% or 0.833 kV, and power losses of 1062.4 Kw, where losses power loss was reduced by 15.8% or 618 kW. The installation of Distributed Generation scenario three does not experience a voltage drop, the average voltage value is 102.4% or 20.38 kV, and power losses are 1062.4 KW, where power losses are reduced by 29.7% or 1114, 6 kW.
Effect of Variation in the Number of Blades on Turbine Rotation and Output Power at PLTPH (Picohydro Power Plant) Using a Kaplan Turbine Arnawan Hasibuan; Asran Asran; Sartika Yanti; Misbahul Jannah; Andik Bintoro; Ari Nrartha
Bulletin of Computer Science and Electrical Engineering Vol. 4 No. 1 (2023): June 2023 - Bulletin of Computer Science and Electrical Engineering
Publisher : Indonesian Scientific Journal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25008/bcsee.v4i1.1170

Abstract

The turbine can be a component that plays an important role as an energy converter that produces power in a picohydro power plant (PLTPH). The turbine used in this study is the Kaplan Turbine. The Kaplan turbine is a type of reaction turbine with a head of 1.58 m. This research examines the effect of variations in the number of blades on turbine rotation and output power in pico-hydro power plants (PLTpH) using Kaplan turbines so that voltage, current, power can be generated which affect the torque value and the efficiency obtained in the PLTpH prototype. This study aims to obtain a turbine runner with the number of blades that can produce the highest efficiency, so a variation of the Kaplan turbine runner is made with a number of blade runner variations, namely 4 blades, 6 blades, and 8 blades. The results showed that the addition of the number of blades produced the highest output with the number of blades 6 which produced a turbine rotation of 218.1 Rpm, generator rotation of 2433 Rpm, generator voltage of 19 volts, generator power of 1900 watts, and torque of 17.5 Nm. Nilai efesiensi yang dihasilkan yaitu 26,62 %. The results of this research are expected to be a reference and help improve human resources to develop power plants in rural areas, and open up opportunities for the community to develop small-scale power plants, namely pico-hydro power plants.