Patents
US 11374503 B2: DC compensation for power transformer through neutral DC injection
- Granted
- 2022-06-28
- Filed
- 2021-03-09 application 17196152
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A power transmission system can include a transformer and compensator circuit(s), each coupled between a node of the transformer and a ground connection. The compensator circuit(s) can each be configured to counteract a DC signal component of an AC signal at the transformer. The compensator circuit(s) can include a converter circuit having an AC side and a DC side and configured to convert a DC voltage on the DC side to an AC signal at the AC side. The compensator circuit(s) can include a DC link coupled to the DC side of the converter circuit. The compensator circuit(s) can include a controller configured to measure a DC signal component between the load and the ground; to determine, based at least in part on the DC signal component, a compensating signal configured to counteract the DC signal component; and to inject, by the converter circuit, the compensating signal to counteract the DC signal component.
Source: PVGPATDIS, file of 2026-04-10 (ipg220628.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Savannah River Nuclear Solutions, LLC 156 patents | US company or organization | Aiken, SC | PVGPATDIS, file of 2026-04-10 | |
| Clemson University 122 patents | US company or organization | Clemson, SC | Clemson University State business registration EXACT high confidence: identical full name and state Clemson University College or university EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Klaehn W. Burkes | Athens, GA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Vincent J. Ceyssens | Augusta, GA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Johan H. R. Enslin | Charleston, SC | 3 | PVGPATDIS, file of 2026-04-10 | |
| Moazzam Nazir | Charleston, SC | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02M | Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems; conversion of dc or ac input power into surge output power; control or regulation thereof | H02M1/40 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-12-14 | Assignment Assignment of assignor's interest | SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC signed 2022-10-14 | BATTELLE SAVANNAH RIVER ALLIANCE, LLC AIKEN, SC | 62083/187 | PASDL, file of 2026-10-15 |
| 2021-04-26 | Government interest Confirmatory license | SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC signed 2021-04-13 | U.S. DEPARTMENT OF ENERGY WASHINGTON, DC | 56033/583 | ECORSEXC, file of 2026-09-25 |
| 2021-03-09 | Assignment Assignment of assignor's interest | ENSLIN, JOHAN H.R. signed 2021-02-10 NAZIR, MOAZZAM signed 2021-02-11 | CLEMSON UNIVERSITY CLEMSON, SC | 55535/398 | ECORSEXC, file of 2026-09-25 |
| 2021-03-09 | Assignment Assignment of assignor's interest | BURKES, KLAEHN W. signed 2021-03-02 CEYSSENS, VINCENT J. signed 2021-03-03 | SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC AIKEN, SC | 55535/267 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.