hi i´m new in this forum and with arduino, i want to make an AVR (advanced Voltage Regulator) to some AC 220v generators drive by internal combustion engine.
i think arduino is a good way to regulate supply voltage and current throught rotor coils, the power supply to the rotor coil will come from the excitation coils using permanent magnets as is common.
Explain the generator in more detail please - you have a rotor with windings to provide the output
power, an stator with just DC winding to control the output voltage as the load varies? Are there
permanent magnets too?
well, the generator is the tipical 50hz 230v per phase, three phase 400v.
The tipical ac brushless took the ac output on the main stator, the voltage and current in rotor is which control the rotor magnetic field, so the main stator output too. because it don't have brushes an exiter small rotor turns with the main rotor, the small rotor has diods to rectify the current it generates to feed main rotor with dc current. the fields to generates ac current in exiter rotor is by an exiter stator.
This exiter stator is what the arduino may control current and voltage, in this way there's no conections between rotors and stators. so the controled input in exiter stator condicionate the main stator output, in the half the changes on the rotors fields.
Some avr manufactured usually 63 to 90 volts output and 6 to 20 amp
Sorry my english lot of time without practice, i'm from argentina