Systems and methods for bi-directional energy delivery with galvanic isolation
AssigneeGM Global Technology Operations LLC
InventorLATEEF A. KAJOUKE
Life of this patent
Estimating the term…
Abstract
Systems and methods are provided for bi-directional energy delivery. A charging system comprises a first bi-directional conversion module, a second bi-directional conversion module, and an isolation module coupled between the first bi-directional conversion module and the second bi-directional conversion module. The isolation module provides galvanic isolation between the first bi-directional conversion module and the second bi-directional conversion module.
Claims20
A charging system comprising:
- a first bi-directional conversion module;
- a second bi-directional conversion module;
- an interface coupled to the first bi-directional conversion module;
- an isolation module coupled between the first bi-directional conversion module and the second bi-directional conversion module, the isolation module providing galvanic isolation between the first bi-directional conversion module and the second bi-directional conversion module;
- and
- a control module coupled to the first bi-directional conversion module and the second bi-directional conversion module, the control module being configured to:
- identify an energy delivery direction for the charging system;
- and
- operate the first bi-directional conversion module and the second bi-directional conversion module based on the energy delivery direction such that a current at the interface is in a direction corresponding to the energy delivery direction.
A method for controlling a charging system including a first bi-directional conversion module coupled to a DC energy source at a DC interface and a second bi-directional conversion module coupled to an AC energy source at an AC interface, the AC energy source having an AC voltage, the method comprising:
- identifying an energy delivery direction for the charging system, the energy delivery direction corresponding to a direction of a DC current at the DC interface;
- and
- operating the first bi-directional conversion module and the second bi-directional conversion module based on the energy delivery direction such that the DC current flows in the direction corresponding to the energy delivery direction.
A vehicle charging system comprising:
- a DC interface;
- an AC interface;
- a first bi-directional conversion module coupled to the DC interface;
- a second bi-directional conversion module coupled to the AC interface;
- an isolation module coupled between the first bi-directional conversion module and the second bi-directional conversion module, the isolation module providing galvanic isolation between the first bi-directional conversion module and the second bi-directional conversion module;
- and
- a control module coupled to the AC interface, the DC interface, the first bi- directional conversion module, and the second bi-directional conversion module, wherein the control module is configured to:
- identify an energy delivery direction;
- and
- operate the first bi-directional conversion module and the second bi- directional conversion module based on the energy delivery direction such that a DC current at the DC interface is in a direction corresponding to the energy delivery direction.
Dependencies are inferred from the claim text.