Supervisory control of a self-tuning automatic voltage regulator

The paper describes the design and implementation of a digital automatic voltage regulator for excitation control of a synchronous generator. Practical aspects such as controller robustness and lack of sufficient processing power are discussed. The minimum sample intervals possible with conventional microprocessor technology fall short of specification by a factor of approximately four. A parallel architecture using INMOS transputers combined with an advanced VME bus-based measurement system provide an open-ended solution to this problem. The scheme is initially applied to a computer simulation of a three-phase turboalternator. A physical simulation of a three-phase turboalternator. A physical simulation is then to be controlled to test the long term reliability of the system under realistic conditions