Patent ID: 11967849
Assignee: THE JOHNS HOPKINS UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An active filter system for filtering power on a power system comprising:
a converter configured to be electrically coupled to a generator at a converter input and an active filter system bus at a converter output such that source current from the generator passes through the converter, the converter being configured to deliver power to the active filter system bus that serves a dynamic load;
a primary energy storage device electrically coupled to the active filter system bus and configured to filter the power via charge and discharge of the primary energy storage device;
a shunt active filter electrically coupled to the active filter system bus, the shunt active filter comprising a supplemental energy storage device that is controlled to perform an active shunt operation to filter the power on the active filter system bus, wherein shunt active filter and the primary energy storage device are controlled to operate collaboratively to perform filtering on the active filter system bus; and
control circuitry configured to control the converter to condition power drawn from the generator to create a filtered load based on programmable active filter controls, the programmable active filter controls being based on a measurement of a load current being supplied to the dynamic load and a state of charge of the primary energy storage device.