Dual-winding synchronous reluctance machine composed of an excitation winding and a separate power winding
US-11894737-B2 · Feb 6, 2024 · US
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using armature-reaction-excited machines
using armature-reaction-excited machines · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H02P9/36 |
| Official title | using armature-reaction-excited machines |
| Display label | using armature-reaction-excited machines |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 3 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Control of a wound field synchronous generator for transient load response
US-11671038-B2 · Jun 6, 2023 · US
Angle determination for a generator
US-11079255-B2 · Aug 3, 2021 · US
Dual-Winding Synchronous Reluctance Machine Composed of an Excitation Winding and a Separate Power Winding
US-2021211028-A1 · Jul 8, 2021 · US
Control of a wound field synchronous generator for transient load response
US-2021044231-A1 · Feb 11, 2021 · US
High frequency ac power generator
US-2020259404-A1 · Aug 13, 2020 · US
Electric power generation control device of alternating current generator for vehicles
US-10673362-B2 · Jun 2, 2020 · US
System and method for controlling motor
US-10547265-B2 · Jan 28, 2020 · US
Angle determination for a generator
US-2019368898-A1 · Dec 5, 2019 · US
Pumped-storage power generation control device and pumped-storage power generation control method
US-10458384-B2 · Oct 29, 2019 · US
Systems and methods for reducing effects of torsional oscillation for electrical power generation
US-10320314-B2 · Jun 11, 2019 · US
System and method for an inverter for self-excitation of an induction machine
US-10224849-B2 · Mar 5, 2019 · US
System and method for controlling motor
US-2018342970-A1 · Nov 29, 2018 · US
Systems and methods for reducing effects of torsional oscillation for electrical power generation
US-2018316294-A1 · Nov 1, 2018 · US
Electric power generation control device of alternating current generator for vehicles
US-2018262138-A1 · Sep 13, 2018 · US
High voltage DC power generating system including selectively removable neutral node
US-9941827-B2 · Apr 10, 2018 · US
High voltage dc power generating system including selectively removable neutral node
US-2017359009-A1 · Dec 14, 2017 · US
System and method for an inverter for self-excitation of an induction machine
US-2017353135-A1 · Dec 7, 2017 · US
Pumped-storage power generation control device and pumped-storage power generation control method
US-2017260961-A1 · Sep 14, 2017 · US
Wind power generator system, and control method for the same
US-9203334-B2 · Dec 1, 2015 · US