Dynamic simulation of generator faults using combined abc and 0dq variables

A method is described for obtaining dynamic solutions for the electrical and mechanical transients that accompany balanced or unbalanced faults on an isolated synchronous generator. The method is illustrated with a system containing a prime mover plus governor, synchronous generator, manual or automatic voltage regulation, and reclosing feeder circuit breaker. A combination of abc and Odq variables is employed in the interest of simplicity and economy in computation.