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Journal : Kilat

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Pemodelan Hydro-Pump Storage Bertenaga Gelombang Laut Menggunakan Simulink rizki pratama putra
KILAT Vol 9 No 2 (2020): KILAT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/kilat.v9i2.1081

Abstract

Intermittency problem of wave power energy converter becomes a disadvantage when integrated into a power system, same with another renewable energy plant. In this paper, a method is proposed to solve the intermittency problem of wave energy converter when integrated into a small power system or in standalone mode. The main idea is to integrate a small pumped hydro system to the wave energy converter which the mechanical energy from wave converted to fluid potential energy. This study aims to create mathematical models of the interaction between a wave-powered pump, the reservoir, and the generator. The models then simulated to see how wave amplitude and reservoir height affect the energy output of the plant. From the simulation results, when the amplitude of the wave is varied between 0.6-1.4 m, the highest power output comes with 1 m wave amplitude. The water output debit which has a relation with stored energy also gives its high rate when the wave amplitude is 1 m. The nonlinear relationship between related parameters is nonlinear that optimization technique will be needed to optimize the plant at a specific working condition
Analisa Rugi-Rugi Pelepasan Energi Sistem Penyimpanan Energi Potensial Gravitasi Jenis Menara Beban rizki pratama putra
KILAT Vol 9 No 2 (2020): KILAT
Publisher : Sekolah Tinggi Teknik - PLN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33322/kilat.v9i2.1082

Abstract

This study discusses the mechanical losses of a gravitational potential energy storage system of load tower types. The aim of this research is to investigate the characteristics of mechanical losses with varied mechanical torque. Analysis of the friction friction theory of bearings and pulleys using the Harris model, then the prototype of the energy storage system is tested directly with the weight load varying in weight to see the characteristics of mechanical losses that occur in prototypes. This information will later be taken into consideration to design and optimize the energy storage system in terms of the selection of falling loads and how to design the energy charging and discharging mechanism. The results obtained are torque losses measurement are partly proportional to the falling mass applied to the system. The value of losses does not increase linearly with the addition of the mass of the falling load. This provides information in considering optimum falling mass weight for energy charging process and also how to consider the control mechanism of energy storage
Co-Authors Hasna Satya Dini Novi Gusti Pahiyanti