Patents
US 11509139 B2: Load re-balancing on a multi-phase power system
- Granted
- 2022-11-22
- Filed
- 2020-05-04 application 16865961
- Type
- Utility · 24 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A system for load balancing on a multi-phase power line connected to a single phase lateral power line, includes a contactor configured to selectively connect each phase of the multi-phase power line to the single phase lateral power line. There is a phase change device connected in parallel with the contactor and a controller. During the phase change state, the controller connects the input of the phase change device to the multi-phase power line and connects the output of the phase change device the single phase lateral power line. The controller causes the phase change device to output a voltage to the single phase lateral line initially aligned with the first phase and then rotated to align with the second phase and causes the contactor changes connection to the second phase of the multi-phase power line and disconnect the phase change device from the power lines.
Source: PVGPATDIS, file of 2026-04-10 (ipg221122.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| American Superconductor Corporation 53 patents | US company or organization | Ayer, MA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Patrick S. Flannery | Madison, WI | 6 | PVGPATDIS, file of 2026-04-10 | |
| Robert McFetridge | Oak Island, NC | 2 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02J | Electric power networks; circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy | H02J3/26 | PVGPATDIS, file of 2026-04-10 |
| H01F | Magnets; inductances; transformers; selection of materials for their magnetic properties | H01F38/14 | PVGPATDIS, file of 2026-04-10 |
| H02K | Dynamo-electric machines | H02K11/0094 | PVGPATDIS, file of 2026-04-10 |
| 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 | H02M5/4585 | PVGPATDIS, file of 2026-04-10 |
| Y02B | Climate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications | Y02B70/3225 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E40/50 | PVGPATDIS, file of 2026-04-10 |
| Y04S | Systems integrating technologies related to power network operation, communication or information technologies for improving the electrical power generation, transmission, distribution, management or usage, i.e. smart grids | Y04S20/222 | 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 |
|---|---|---|---|---|---|
| 2020-09-17 | Assignment Assignment of assignor's interest | MCFETRIDGE, ROBERT signed 2020-09-03 FLANNERY, PATRICK S. signed 2020-09-08 | AMERICAN SUPERCONDUCTOR CORPORATION AYER, MA | 53800/181 | 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.