Use this URL to cite or link to this record in EThOS:
Title: Microprocessor controlled PWM inverters for UPS applications
Author: Khan, Muhammad Zafar Ullah
ISNI:       0000 0001 3598 3674
Awarding Body: Loughborough University of Technology
Current Institution: Loughborough University
Date of Award: 1989
Availability of Full Text:
Access from EThOS:
Access from Institution:
This thesis describes the implementation of microprocessor controlled single-phase and three-phase inverters for UPS applications. A carrier frequency of 18 kHz is employed in both cases, and the PWM pulses are generated directly by the microprocessor using the regular-sampled symmetric PWM strategy. Single-edge modulation as well as double-edge modulation has been implemented for single-phase and three-phase systems. Since in general, software implementation of PWM strategies require precalculated pulse width values, a scheme is proposed which enables the large quantity of such data to be handled efficiently. The scheme involves the use of a small program for calculating and transferring the data to the memory of the controller.
Supervisor: Not available Sponsor: Government of Pakistan
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Voltage regulation][Power switching device