Design and implementation of a personal computer based automatic voltage regulator for a synchronous generator

An effective and straightforward design method for a digital voltage regulator for a synchronous generator is presented. The design is carried out directly in the z-domain using the root locus method. Simple software routines were written in assembly language thereby making it suitable for online computer control. Digital simulation studies were also carried out to test and compare the design and its dynamic results. The design was implemented on a laboratory size 5 kVA generator with an IBM personal computer acting as the digital controller. Results from the experimental set-ups reinforced the theoretical expectations.<
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