Patent ID: 11929664
Assignee: MARQUETTE UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A multiport convertor comprising:
a direct current (DC) processing circuit including an inverter for converting input power to an alternating current (AC) pulse train;
a plurality of power sources, at least one of the plurality of power sources being a renewable energy power source, the plurality of power sources being selectively connectable to an input of the DC processing circuit;
a high frequency transformer having a single primary winding and at least first and second secondary windings, the high frequency transformer connected to receive the AC pulse train;
a first and a second rectifier circuit selectively connected to the first and second windings, respectively;
a first energy storage system selectively connected to an output of the first rectifier circuit;
a second energy storage system selectively connected to an output of the second rectifier circuit;
a load output selectively connected to one of the first energy storage system, the second energy storage system, or an output of at least one of the first and second rectifier circuits,
a controller programmed to:
monitor a power level of each of the plurality of input power sources, a state of charge of the first and second energy storage devices, and a demand at the load output;
based on the monitored power level, selectively connect at least one of the plurality of input power sources to the DC processing;
based on the state of charge of each of the first energy storage system, selectively connect the first energy storage system to the first rectifier circuit to charge the first energy storage system;
based on the state of charge of the second energy storage system, selectively connect the second energy storage system to the second rectifier circuit to charge the second energy storage system
based on the monitored demand of the load, selectively switch an output of the first energy storage system and/or the second energy storage system, or an output of at least one of the first and second rectifiers, to the load output, wherein power is supplied to the load output by at least one of the first and second energy storage systems or directly from one of the first and second rectifiers.