Development of fault detection system for three-phase voltage source inverter (VSI)

Sa'adah , Daud (2014) Development of fault detection system for three-phase voltage source inverter (VSI). Project Report. UTeM. (Submitted)

Text DEVELOPMENT OF FAULT DETECTION SYSTEM FOR THREE--PHASE VOLTAGE SOURCE INVERTER (VSI) 24pages.pdf Download (446kB)

Abstract

Voltage Source Inverter (VSI) is widely used in larger electronics areas, portable devices and in power generation systems. Lately, this device is highly demand in applications using renewable energy such as Solar Photovoltaic (PV) System and Smart Grid System. As time move on, the development of technologies using renewable energy is needed for future demand since this resource helps in protecting the surrounding. In industry, the performance and effects of the devices are such important factors that must be taken into account in order to ensure the continuity of the applications. Normally, the faults occur on the switching device that is very sensitive. A small electric disturbance may cause destruction at high cost and sudden system failure. The development of fault detection system for Voltage Source Inverter (VSI) is to monitor and detect fault at the early stage. This fault can be detected by the behavior of current waveform. This project aims are to analyze the system based on RMS and average current as the parameters, to develop the system with accurate value measurement and to classify the types of fault occurs. Analysis is conducted in order to identify the fault pattern or behavior by using MATLAB. This analysis will first undergo the circuit design process using Simulink, a tool in MATLAB. The simulation will result in the classification of faults’ type. The project designed is focused on applications using three-phase VSI. This system is design using Microsoft Visual Basic 2010 and is known as “VSI Fault Detection System” that can detect and classify only two types of fault which are short-circuit fault and open-circuit fault. The use of NI USB-6009 DAQ Card is to capture signal source or data and interface it with Visual Basic 10.0. The monitor can display the parameters reading and waveform which are RMS current and average current. The type of fault is mention in the system once fault is detected. This system provides precaution and early identification of fault thus reduces high maintenance cost and prevent critical fault from happen.

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