ROTATING ELECTRICAL MACHINE HAVING EXCITATION AND A DIGITAL REGULATION DEVICE

摘要

The machine of the present invention outputs a continuous output voltage (Ub +) that is capable of functioning as a generator and is adjustable by excitation current. A digital regulator (2) of a machine includes an excitation current control means (7) comprising means for measurement (10) and a control loop (6) which samples the output voltage (Ub + And generates a sampled signal at the first sampling frequency F1e. The machine has a limited bandwidth by the predetermined first cutoff frequency F1c. According to the invention, the measuring means comprises means for oversampling such that the first sampling frequency Flie is greater than twice the first cutoff frequency F1c, and the control loop comprises means for oversampling the sampled signal Means 12 are also included.