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العنوان
Performance of thyristor converters with nonideal supply /
المؤلف
Hassaneen, Khaled Mahmoud.
هيئة الاعداد
باحث / خالد محمود حسنين
مشرف / فاروق احمد
مناقش / ابراهيم عبد الحليم
مناقش / فاروق احمد
الموضوع
Performances.
تاريخ النشر
1993.
عدد الصفحات
158p. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
الهندسة الكهربائية والالكترونية
تاريخ الإجازة
1/1/1993
مكان الإجازة
جامعة بنها - كلية الهندسة بشبرا - Department of electric
الفهرس
Only 14 pages are availabe for public view

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from 174

Abstract

This thesis investigates the performance of a 3-phase, fully-controlled rectifier bridge feeding a static active load or a DC-motor, when the AC supply feeding the bridge is nonideal. Closed-form analytical expressions for load current, supply current, load voltage and terminal voltage of the bridge are develope without approximation in the shape of the supply-current waveform or in the shape of the load-current waveform during the overlap periods. The analysis covers all normal modes for continuous and discontinuous modes of operation. The harmonic analysis of the supply current and terminal voltage of the bridge are developed. Also, the analysis includes ripple, distortion, displacement and power factors characteristics.
In the thesis, the performance of the bridge with terminal capacitors is also investigated. The investigation includes effect of those terminal capacitors on the system performance, the value of the overlap angle and the supply power factor, when the loads are inductive, static active and dc motor.
The behaviour of dual converter is analysed in full, when it feeds a dc motor, during the period of speed changing or speed reversal with nonideal supply.