Patent ID: 8395274
Filing Date: 2013-03-12
Classification: F02N,H02J

Abstract:
1. A power unit comprising: turbomachinery components rotatably connected via a shaft; a generator connected to convert rotational energy associated with the turbomachinery to electrical energy for distribution on a electrical bus; a motor connected to convert electrical energy distributed by the electrical bus to motive energy used to accelerate the turbomachinery components; and a power controller operably connectable to monitor voltage on the electrical bus and configured to detect, based on the monitored voltage, whether the excess voltage is a result of regenerative power provided by a load attached to the electrical bus; wherein, based on detecting that the excess voltage is resulting from regenerative power, the power controller selectively connects the motor to the electrical bus to convert the excess electrical energy to motive force used to accelerate the turbomachinery components, and based on detecting a voltage demand on the electrical bus the power controller selectively connects the generator to the electrical bus to convert rotational energy associated with the turbomachinery components to electrical energy for distribution on the electrical bus.