ELECTRIC DRIVE POWER RESPONSE MANAGEMENT SYSTEM AND METHOD

摘要

An electric drive system includes a fuel-driven prime mover (202) for driving an electrical power alternator (204) controlled at least in part by an excitation voltage is disclosed. The electrical power alternator (204) makes electrical power available on a dc link (312) having a voltage characteristic and a current characteristic. A method for managing the response of the alternator (204) includes determining a voltage of the dc link (312) and a torque command (504) by an operator. The torque command (504) is used to derive a mechanical power that is being commanded. A desired voltage of the dc link (312) is determined based on the derived mechanical power, and an excitation voltage command (612) signal is provided based on the desired voltage of the dc link (312) by use of a closed loop controller (500). An actual excitation voltage is applied to the electrical power alternator (204) based on the excitation voltage command (612) signal.