AbstractThe problem of non‐linear field voltage controller synthesis for a synchronous generator is considered. The theory of feedback linearization of non‐linear systems is applied and the existence of a linearizing feedback controller for the improved reduced‐order three‐dimensional model of a generator is proved. Simulation results for the proposed non‐linear controller, which includes a non‐linear observer and two systems based on an automatic voltage regulator and a power system stabilizer, are presented.