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Title: Microprocessor controlled PWM inverters for UPS applications
Authors: Khan, Muhammad Z.U.
Issue Date: 1989
Publisher: © Muhammad Zafar Ullah Khan
Abstract: 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. [Continues.]
Description: A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.
Sponsor: Pakistan, Government.
URI: https://dspace.lboro.ac.uk/2134/28190
Appears in Collections:PhD Theses (Mechanical, Electrical and Manufacturing Engineering)

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