Multiport transformer enabled modular multiport power conversion system
AssigneeDG Matrix, Inc.
InventorHaroon Inam
Life of this patent
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Abstract
A modular, multiport power conversion system includes a central transformer with a plurality of windings inductively connected to the central transformer. The plurality of windings are connected to ports able to connect to both AC and DC-devices, including both power sources and power consuming nodes. Each port is able to be selectively galvanically isolated, such that a controller is able to determine from which ports power is drawn and/or to which ports power is transferred. The system is operable to use zero voltage switching (ZVS) and/or zero current switching (ZCS) for each port to reduce power loss and increase efficiency, especially for high frequency embodiments.
Claims20
A modular multiport power system, comprising:
- a central transformer;
- a plurality of galvanically isolated ports coupled to the central transformer via windings;
- one or more voltage sensors and/or one or more current sensors for at least one of the plurality of galvanically isolated ports configured to detect voltage and/or current characteristics of the at least one of the plurality of galvanically isolated ports;
- and
- at least one controller;
- wherein at least one first port of the plurality of galvanically isolated ports is connected to one or more sources;
- wherein at least one second port of the plurality of galvanically isolated ports is connected to one or more loads;
- wherein the at least one controller is configured to selectively charge and/or discharge the one or more sources;
- wherein the at least one controller is configured to selectively charge and/or discharge the one or more loads;
- and
- wherein the at least one controller is operable to detect a fault of the at least one of the plurality of galvanically isolated ports based on the voltage and/or current characteristics, wherein the fault comprises an undercurrent condition, an overcurrent condition, an undervoltage condition, an overvoltage condition, and/or arcing.
A modular multiport power system, comprising:
- a central transformer;
- a plurality of galvanically isolated ports coupled to the central transformer via windings;
- one or more voltage sensors and/or one or more current sensors for at least one of the plurality of galvanically isolated ports configured to detect voltage and/or current characteristics of the at least one of the plurality of galvanically isolated ports;
- and
- at least one controller;
- wherein each of the plurality of galvanically isolated ports are connected to one or more sources and/or loads;
- wherein the at least one controller is operable to detect a fault of the at least one of the plurality of galvanically isolated ports based on the voltage and/or current characteristics;
- and
- wherein the at least one controller is operable to adjust respective on-off duty cycles and/or phasing of the on-off duty cycles to achieve a set percentage of power drawn by or supplied from one or more of the plurality of galvanically isolated ports.
A modular multiport power system, comprising:
- a transformer;
- a plurality of galvanically isolated ports coupled to the transformer via windings;
- one or more voltage sensors and/or one or more current sensors for at least one of the plurality of galvanically isolated ports configured to detect voltage and/or current characteristics of the at least one of the plurality of galvanically isolated ports;
- and
- at least one controller;
- wherein each of the plurality of galvanically isolated ports are connected to one or more sources and/or loads;
- wherein the at least one controller is operable to detect a fault of the at least one of the plurality of galvanically isolated ports based on the voltage and/or current characteristics.
Dependencies are inferred from the claim text.