Serial capacitor operation control device and method for single-phase permanent magnet synchronous generator

The invention relates to a serial capacitor operation control device and method for a single-phase permanent magnet synchronous generator. The device includes two orthogonal windings and a load; a capacitor C1, a capacitor C2 and a capacitor C3 connected with one of the orthogonal winding; a bidirectional thyristor T1, a bidirectional thyristor T2 and a bidirectional thyristor T3 connected with the capacitor C1, the capacitor C2 and the capacitor C3 correspondingly and used for controlling the capacitors to connect to circuits. The device also includes a voltage-current detection conditioningcircuit, an A/D conversion circuit, a single-chip microprocessor control circuit, a thyristor triggering control circuit, a zero cross detection circuit, a Hall voltage sensor, a Hall current sensor,a linear optical coupler and a phase inverter. By adopting the technical scheme provided by the invention, defects of generator vibration and severe voltage waveform distortion due to generation of pulse vibration magnetomotive force of the single-phase motor and generator vibration and low power generation efficiency caused by magnetomotive force having ovality difference generated in an electrification process of the two-phase armature windings can be made up.