Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : Serambi Engineering

Desain dan Analisis Pembangkit Tegangan DC Tinggi Tiga Tahap dengan Metode Crocroft - Walton Setiyono
Jurnal Serambi Engineering Vol. 9 No. 4 (2024): Oktober 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

High DC voltage sources are required in a variety of applications including nuclear measurements, medical equipment (X-rays), corona testers, dielectric strength testing, pulse voltage generation and high voltage electrical resistance testing. Various methods have been developed to produce high DC voltage, including DC-DC converters, boost converters, flyback transformers and Crocroft - Walton. This paper describes a high DC voltage generator using the Crocroft-Walton (CW) rectifier method. This method is based on the principle of converting a low voltage AC wave to a high DC voltage (converter), the level of which is many times the input voltage. The aim of this research is to develop a design for a 12 V DC voltage multiplier to a high DC voltage without a voltage step-up transformer using the CW method using Matlab Simulink tools. The switching control strategy uses two high frequency and low frequency components in the converter circuit. The simulation results show that the input voltage value was successfully doubled to approximately six times, with the highest output voltage value being 4973 V at a pulse width (duty cycle) setting of 0.99 on the converter circuit switch.
Analisis Disain Midpoint Cycloconverter dengan Pengaturan Tegangan Setiyono
Jurnal Serambi Engineering Vol. 9 No. 2 (2024): April 2024
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This article explains the design of an AC to AC converter with different frequencies and voltages depending on the input. Most electrical equipment circulating in society, such as lighting, water pumps, heaters, cooling machines, are powered by an alternating voltage source with a fixed source voltage and frequency. However, this is not the case with certain types of electric motors in several industries that require a voltage source and changing frequency to regulate their rotational speed. A cycloconverter is an AC to AC converter with frequency settings as well as voltage settings on the output side. This cycloconverter is capable of providing an output frequency n times the source frequency () or () where n is the desired frequency. This research was carried out by building a modeling simulation of a Mid Point type single-phase bridge cycloconverter (middle point) using the Matlab Simulink tool. The simulation results show that the cycloconverter output frequency can be adjusted by setting the switch trigger signal on the positive converter and negative converter with the same wave shape or pattern in the positive cycle and in the negative cycle for each nth divider. At low frequencies the THD (Total Harmonic Distortion) value of the cycloconverter midpoint is greater because of the shape factor on the output side.
Disain dan Analisis Generator Induksi Exitasi Sendiri pada Perubahan Nilai Kapasitor dan Kecepatan Penggerak Mula , Setiyono
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This paper presents an analysis of the influence of changes in excitation capacitors and prime mover speed on the performance of power plants using three-phase induction generators. The objective is to determine the output parameters of voltage, current, active power, reactive power and torque of the induction generator when the generator is rotated by the prime mover at variable speed. The method used is to build a self-excited three-phase induction generator by installing three capacitors in parallel on the stator coil through modeling simulation using the Matlab Simulink tool. The simulation results show that changes in the capacitor and generator drive speed have an effect on the reactive power value produced by the generator.