brushless excitation system

Brushless excitation systems of synchronous generators provide non-contact transfer of the excitation power to the generator rotor in case absence of a commutation in rotor circuit. Such systems have a long response time of terminal-voltage regulation caused by the additional rotating machine (exciter). Using of fast-acting compound circuit allows improving dynamic parameters of terminal-voltage regulation in modes of sharp voltage variation and short circuit in line.

The transient electromagnetic processes in the power generation system with turbo- generator and brushless excitation system in a mode of initial excitation of turbo-generator are analyzed in the article. The research was carried out in the hybrid system that combines a computer model of a power part with the real excitation controller. The influence of setting the automatic control system on quality of voltage regulation and generator excitation current regulation is analyzed.

The electromechanical and electromagnetic transient processes in a power generation system with turbo-generator and brushless excitation for main working regimes are analyzed in the article. An analysis has been carried out by means of developed with the use of the object-oriented method the mathematical and computer models that take into account non- linearity of synchronous machines and discreteness of semiconductor converters.