Abstract
Advances in technology have caused the use of electricity to increase rapidly. With advances in technology, this is followed by the use of increasingly efficient electrical components or equipment. This more efficient electrical equipment causes the impedance of the component to be smaller, causing a surge in current when it is turned on. This current surge, if not followed by appropriate safety precautions, will be damage other components. Each load has different waveform characteristics and current transient peaks. For this reason, it is necessary to analyze the transient condition of a load to overcome this. This paper will explain the characteristics of the inrush current of the load due to ignition. There are three loads used in this study, namely resistive, capacitive and inductive loads. Then the use of this load is simulated by giving different ignition angle values, namely 0, 60, and 90 degrees. The analysis used is the Fast Fourier Transform (FFT) method which is a derivative of the Discrete Fourier Transform. The inrush current spectrum in this simulation is simulated using Simulink MATLAB with switching system modeling using TRIAC. This inrush current simulation data collection uses a sampling frequency of 100 Khz and will be analyzed in the first of 5 cycles. For each load in this paper, the harmonic values for each ignition angle will be presented. The simulation results show that the inrush current is caused by the ignition angle value used and because of components that can deviate energy such as inductors and capacitors as well as components which at the time of starting have a low impedance value such as incandescent lamps. The simulation also shows that the use of switching components for setting the ignition angle causes an increase in the value of Total Harmonic Distortion (THD) but the peak current in the first cycle when the ignition angle is set decreases.
Highlights
IntroductionEnergy injection is needed so that electrical equipment can be electrified
Electricity is a primary need for every human being because it is useful for making work easier.When using electricity, and energy injection is needed so that electrical equipment can be electrified
The discrete data from this sampling will be processed with the Fast Fourier Transform (FFT) algorithm and will eventually produce a spectrum or amplitude in the frequency domain
Summary
Energy injection is needed so that electrical equipment can be electrified. During this injection process, there will be a surge in current due to a sudden change in potential. There will be a surge in current due to a sudden change in potential This transient condition is widely used in various researches. Monitoring the load during load started on can use transient analysis [1]. Different conditions of damage to the transformer can be analyzed using the transient state [2]. Transient analysis is used to design a component so that no damage occurs in the event of an unbalanced state or a sudden transition. It is necessary to study to observe the transient conditions when the electrical equipment is first energized
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