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Impact of rotating machines on harmonic distortion in power distribution systems / Muhamad Iszuan Bin Hamdan

By:

Muhamad Iszuan Hamdan

Material type: Text

TextPublication details: Kuantan, Pahang : UMP, 2009Description: 65 p. : ill. (some col.) ; 30 cm. + 1 computer discISBN:

THE0006802(Local)

Other title:

Impact of rotating machines on harmonic distortion in power distribution systems [electronic resource]

Subject(s):

Electric power distribution

Dissertation note: Project paper (Bachelor of Electrical Engineering (Power Systems)) -- Universiti Malaysia Pahang - 2009 Abstract: Harmonic cause of distortion of the voltages and current waveforms, which have adverse effects on electrical equipment. Harmonics are one of the major power quality concerns. The estimation of harmonics from nonlinear loads is the first step in a harmonic analysis and this may not be straight forward. Rotating machines are considered sources of harmonics because the windings are embedded in slots which are not perfectly sinusoidally distributed resulting in a distorted mmf. Nonsinusoidal voltage applied to electric machines may cause overheating, pulsating torques or noise. In additional to cross the line applications, adjustable speed drive motors are fed from inverter that can produce significant voltage distortion. In induction motor, they can overheat due to the effects of harmonic currents, depending on their frequency, because of additional rotating magnetic fields in the motor. Harmonic produce harmonic fluxes in motors. The harmonic torques tends to rotate motor at different harmonic synchronous speeds. It can produce high frequency currents in rotor circuits. The data which collect from the site project will be inserting into Visualation Basic, VB. The parameters that will be state are voltage, current, frequency, time and total harmonic distortion. The reading will be collect with the different speed of motor. It causes to show how the speeds of motor produce harmonic distortion. Then it wills using the different type of starter motor there are Direct-On-Line, Auto-Transformer and Star-Delta.

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Holdings ( 2 )
Title notes ( 2 )

Holdings
Item type	Current library	Call number	Copy number	Status	Date due	Barcode
Final Year Report	UMPLIB PEKAN	TK3091 .I89 2009 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000037840
Final Year Report	UMPLIB PEKAN	CD 3295 \| TK3091 .I89 2009 rs Bc. (Browse shelf(Opens below))	1	Not for loan		0000037841

Project paper (Bachelor of Electrical Engineering (Power Systems)) -- Universiti Malaysia Pahang - 2009

Harmonic cause of distortion of the voltages and current waveforms, which have adverse effects on electrical equipment. Harmonics are one of the major power quality concerns. The estimation of harmonics from nonlinear loads is the first step in a harmonic analysis and this may not be straight forward. Rotating machines are considered sources of harmonics because the windings are embedded in slots which are not perfectly sinusoidally distributed resulting in a distorted mmf. Nonsinusoidal voltage applied to electric machines may cause overheating, pulsating torques or noise. In additional to cross the line applications, adjustable speed drive motors are fed from inverter that can produce significant voltage distortion. In induction motor, they can overheat due to the effects of harmonic currents, depending on their frequency, because of additional rotating magnetic fields in the motor. Harmonic produce harmonic fluxes in motors. The harmonic torques tends to rotate motor at different harmonic synchronous speeds. It can produce high frequency currents in rotor circuits. The data which collect from the site project will be inserting into Visualation Basic, VB. The parameters that will be state are voltage, current, frequency, time and total harmonic distortion. The reading will be collect with the different speed of motor. It causes to show how the speeds of motor produce harmonic distortion. Then it wills using the different type of starter motor there are Direct-On-Line, Auto-Transformer and Star-Delta.