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The Study on the Effects of Cable Capacitance on the Behaviour of Triplen Harmonics Produced By Synchronous Generator

Mohamed Akhir, Faiz lzzat (2011) The Study on the Effects of Cable Capacitance on the Behaviour of Triplen Harmonics Produced By Synchronous Generator. Universiti Teknologi Petronas. (Unpublished)

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Abstract

the heavy usage of electronics equipment today has increased the amount of harmonics !lowing in power system. This can lead to power quality problems. Harmonic by definition is ~ component of a periodic wave having a frequency that is an integral multiple of the fundamental power line frequency. Harmonics get more complicated in three phase ~pplication. In three phase application, we have to deal not only with phase conductors, but also the neutral conductor, triplen harmonics and sequence harmonics. Triplen harmonics are the odd multiple of third harmonics (3'd, 9th, 15th, etc.). Trip len harmonics currents are the major cause of heat because they add together in neutral conductor. The magnitude of triplen harmonics currents can approach twice of the phase currents. Neutral conductors were designed with the ampacity as the phase conductors and when triplen harmonics currents add at the neutral, it causes them to overheat. The effect of this has been known from previous published journals. In this project, the author wants to find whether cable capacitance will have the same effect as neutral conductor. Any two conductors separated by a distance can store a charge. So any two wires in a cable can store a charge. This is what we called cable capacitance. In the experiment, capacitor will be introduced at each phase wire (red phase, yellow phase and blue phase) to act as cable capacitance. The triplen harmonics currents will be measured at capacitor to see whether capacitor affect how triplen harmonics currents produced by single generator behave in a power system. After the data have been gathered, it will be used to model the circuit in PSCAD. The purpose of this is to find the right source to be used in PSCAD simulation. The author hope by the end of this project, the findings will help the industry to reduce or suppressed the amount of harmonics and also detect the harmonics present in the power system by using simulation.

Item Type: Final Year Project
Academic Subject : Academic Department - Electrical And Electronics - Power Systems - Generation - Synchronous generators
Subject: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Engineering > Electrical and Electronic
Depositing User: Users 2053 not found.
Date Deposited: 09 Oct 2013 11:07
Last Modified: 25 Jan 2017 09:41
URI: http://utpedia.utp.edu.my/id/eprint/8755

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