Designing of fault's pattern for 3 phase inverter using VB

Nur Atiqah Masita , Hasan (2014) Designing of fault's pattern for 3 phase inverter using VB. Project Report. UTeM. (Submitted)

Text DESIGNING OF FAULT’S PATTERN FOR 3 PHASE INVERTER USING VB 24pages.pdf Download (953kB)

Abstract

The purpose of this project is to designing fault’s pattern for three phase inverter using Visual Basic. As already known, the usage of inverter is widely important in the industry. Due the operation frequently, there are many type of fault may occur in the three phase inverter. The study of fault is extremely important and quite difficult to determine. The failure of switching also cannot be determine earlier. Therefore, the cost of maintenance and repairing the system is increased besides the other system is affected if the fault is failed or late to be determined. In order to determine the fault happen in the inverter, by designing in visualization is given clearer overview. Focusing in two main faults frequently are happened, which are open circuit of damage and short circuit of damage, the aspect including the characteristics and the position of fault may occur in the inverter is considered at first. The process to design the pattern the fault is facilitated. As an introduction, the current value of open switch in phase be zero for either the positive or negative half-cycle and the short circuit happen when switches is short circuited, basically happen when a wrong gate voltage. This project also represented the parameter is consider in the fault of three phase converters which are average current, RMS current and total harmonic distortion. The ideal signal of three phase inverter is represented in the visualization at first to give some overview. Usually, the investigation only diagnose the fault occur in the inverter. So, overalls, the goal of this project is achieved by the coding is run using Visual basic that the clearer for a good display of the fault is given. Some calculations are needed in process to design and the pattern of fault is created. The visualization is plotted in sine wave signal to give clearer pattern of faults three phase inverter.

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