Patent ID: 8058850
Filing Date: 2011-11-15
Classification: H02P

Abstract:
1. A control system for an electrical power generating system (EPGS) comprising: a calculating device for determining a calculated sustainable voltage needed to sustain a measured current level of an electrical load with available power of an engine of the EPGS; a voltage controller for controlling an output of a generator of the EPGS at a voltage that corresponds to the calculated sustainable voltage, when electrical load on the EPGS exceeds the power of the engine or the electrical capability of the generator; a voltage comparator for comparing an output voltage calculated from a dc bus current and a shaft speed of the generator and a minimum voltage calculated from the shaft speed of the generator and the dc output power to provide a command voltage output that corresponds to the lower of the of the output voltage and the minimum voltage; and the voltage comparator being interconnected with the voltage controller so that the output of the generator is controlled at the command voltage.