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PWM Strategies for microprocessor control of variable speed drives / A. Midoun 

Public ISBD Titre : PWM Strategies for microprocessor control of variable speed drives Type de document : texte imprimé Auteurs : A. Midoun, Auteur ; S. R. Bowes, Directeur de thèse Editeur : University of Bristol Année de publication : 1985 Importance : 345 f. Présentation : ill. Format : 30 cm Note générale : Thèse de Doctorat : Électrotechnique : Angleterre, University of Bristol : 1985 Bibliogr. f. 346 - 351 . Annexe [39] f Langues : Anglais (eng) Mots-clés : Pulse-width  modulation Sinusoidal  modulation Harmonic  torque  minimisation Harmonic  elimination  techniques Index. décimale : D006585 Résumé : The analysis and development of different PWM strategies suitable for inverter based systems are presented in this thesis. The conventional modulation is reviewed showing the superiority of the regular asymmetric sampling over the regular symmetric and natural sampling. New results concerning the optimum PWM strategies such as the harmonic current minimisation, harmonic torque minimisation and harmonic elimination techniques are presented. Moreover, a technique to develop PWM strategies where different performance criteria are combined is also presented. The development of a simple modulation process which approximates the characteristics of the harmonic current minimisation is presented. The results derived from the analyses of the sinusoidal modulation and the optimum PWM techniques will be used to develop new PWM strategies. The characteristics of these PWM techniques are analysed and compared with those of other known PWM strategies. A method to switch from the PWM mode to the quasi square ware mode with reduced harmonic distortion and negligible transient phenomena is presented. The different theoretical results obtained are confirmed using a microprocessor controlled transistorised inverter. PWM Strategies for microprocessor control of variable speed drives [texte imprimé] / A. Midoun, Auteur ; S. R. Bowes, Directeur de thèse . - [S.l.] : University of Bristol, 1985 . - 345 f. : ill. ; 30 cm. Thèse de Doctorat : Électrotechnique : Angleterre, University of Bristol : 1985 Bibliogr. f. 346 - 351 . Annexe [39] f Langues : Anglais (eng) Mots-clés : Pulse-width  modulation Sinusoidal  modulation Harmonic  torque  minimisation Harmonic  elimination  techniques Index. décimale : D006585 Résumé : The analysis and development of different PWM strategies suitable for inverter based systems are presented in this thesis. The conventional modulation is reviewed showing the superiority of the regular asymmetric sampling over the regular symmetric and natural sampling. New results concerning the optimum PWM strategies such as the harmonic current minimisation, harmonic torque minimisation and harmonic elimination techniques are presented. Moreover, a technique to develop PWM strategies where different performance criteria are combined is also presented. The development of a simple modulation process which approximates the characteristics of the harmonic current minimisation is presented. The results derived from the analyses of the sinusoidal modulation and the optimum PWM techniques will be used to develop new PWM strategies. The characteristics of these PWM techniques are analysed and compared with those of other known PWM strategies. A method to switch from the PWM mode to the quasi square ware mode with reduced harmonic distortion and negligible transient phenomena is presented. The different theoretical results obtained are confirmed using a microprocessor controlled transistorised inverter.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
D006585	D006585	Papier	Bibliothèque centrale	Thèse de Doctorat	Disponible

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