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Automatic governor for tie-line control: A teaching tool

Power transmission between interconnected systems is a major concern in the present electrical engineering context and is of utmost importance to Electrical Engineering undergraduates. A voltage scaled power system simulator with two interconnected areas has been designed, for educational purposes, using vacuum circuit breakers, a diesel generator, a motor-generator set, transmission lines, bus bars, loads etc. Synchronization of two areas and a power controller of the tie line between the two areas have been implemented. In addition, students can learn about different interactions, such as synchronous and isochronous operation of generators with large systems. This paper finally discusses the possible experiences of interconnected power systems that undergraduate students could be exposed to.