Method for reducing a voltage ripple due to rotational nonuniformity of a generator driven by an internal combustion engine

摘要

A method for reducing a ripple, caused by rotational nonuniformity of an internal combustion engine, in the output voltage of a generator which is driven by the internal combustion engine is provided. The generator has a stator winding, a rotor winding, a field controller, associated with the rotor winding, for regulating the output voltage of the generator, and a downstream power converter having controllable switching elements. To reduce the voltage ripple, the output voltage of the generator is regulated on the stator side by appropriately controlling the switching elements of the power converter.

主权项

1. A method for reducing a ripple, caused by rotational nonuniformity of an internal combustion engine, in an output voltage of a generator driven by the internal combustion engine, the generator having a stator winding, a rotor winding, and a field controller associated with the rotor winding, and a downstream power converter having controllable switching elements being provided, the method comprising:
operating the field controller to regulate the output voltage of the generator on the rotor side; operating the power converter as a rectifier; and regulating the output voltage of the generator on the stator side by controlling the switching elements of the power converter to reduce the ripple in the output voltage.