H02P 21/00
Arrangements or methods for the control of electric machines by vector control
Official title: Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
H02P21/00 (Arrangements or methods for the control of electric machines by vector control) appears on 4,224 US grants and 4,485 published applications in this corpus.
Search patents in H02P- Granted patents
- 4,224
- Published applications
- 4,485
- Assignees
- 1,054
- Inventors
- 6,583
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 14 | 0 |
| 1983 | 8 | 0 |
| 1984 | 21 | 0 |
| 1985 | 15 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 15 | 0 |
| 1989 | 14 | 0 |
| 1990 | 12 | 0 |
| 1991 | 11 | 0 |
| 1992 | 18 | 0 |
| 1993 | 11 | 0 |
| 1994 | 20 | 0 |
| 1995 | 15 | 0 |
| 1996 | 25 | 0 |
| 1997 | 27 | 0 |
| 1998 | 30 | 0 |
| 1999 | 32 | 0 |
| 2000 | 26 | 0 |
| 2001 | 28 | 7 |
| 2002 | 40 | 31 |
| 2003 | 42 | 50 |
| 2004 | 56 | 64 |
| 2005 | 48 | 76 |
| 2006 | 80 | 59 |
| 2007 | 57 | 97 |
| 2008 | 52 | 115 |
| 2009 | 71 | 110 |
| 2010 | 75 | 120 |
| 2011 | 94 | 138 |
| 2012 | 136 | 124 |
| 2013 | 131 | 181 |
| 2014 | 153 | 206 |
| 2015 | 193 | 199 |
| 2016 | 194 | 204 |
| 2017 | 206 | 208 |
| 2018 | 204 | 225 |
| 2019 | 255 | 296 |
| 2020 | 254 | 308 |
| 2021 | 250 | 269 |
| 2022 | 289 | 272 |
| 2023 | 273 | 302 |
| 2024 | 261 | 326 |
| 2025 | 289 | 280 |
| 2026 | 138 | 218 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02P 21/14Estimation or adaptation of machine parameters1,788
- H02P 21/22Current control1,442
- H02P 21/06Rotor flux based control involving the use of rotor position or rotor764
- H02P 21/24Vector control not involving the use of rotor position or rotor speed618
- H02P 21/0003Control strategies in general533
- H02P 21/05Arrangements or methods for the control of electric machines by vector control367
- H02P 21/0085Arrangements or methods for the control of electric machines by vector control325
- H02P 21/13Observer control242
All 14 subgroupsShow fewer
- H02P 21/34Arrangements for starting220
- H02P 21/50Vector control arrangements or methods not otherwise provided for in h02p21/00- h02p21/36160
- H02P 21/36Arrangements for braking or slowing111
- H02P 21/12Stator flux based control involving the use of rotor position or rotor109
- H02P 21/04Arrangements or methods for the control of electric machines by vector control98
- H02P 21/02Arrangements or methods for the control of electric machines by vector control47
Recent patents
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- Power tool dynamic motor field weakening system and method8 Oct 2026US 2026/0307231 A1Milwaukee Electric Tool Corporation
- Systems and methods for a permanent magnet synchronous motor8 Oct 2026US 2026/0312516 A1Schlumberger Technology Corporation
- Data-Driven Predictive Current Modeling Method, Apparatus, Medium, and Device for a Permanent Magnet Synchronous Motor8 Oct 2026US 2026/0312517 A1Southwest Jiaotong University
- Method of identifying the parameters of a permanent magnet synchronous motor8 Oct 2026US 2026/0312518 A1Arol S.P.A.
- Rotary electric machine control device, electric power steering device, and vehicle8 Oct 2026US 2026/0312519 A1Mitsubishi Electric Mobility Corporation
Most cited
By later US patents
- Active voltage controller for an electric motor1,016US 9,240,740 B2The Boeing Company · 2016
- Control device for electric motor412US 7,005,828 B2Nissan Motor Co., Ltd. · 2006
- Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation266US 5,225,712 AU.S. Windpower, Inc. · 1993
- System for fueling electric powered hydraulic fracturing equipment with multiple fuel sources255US 10,020,711 B2U.S. Well Services, LLC · 2018
- Variable speed wind turbine245US 5,083,039 AU.S. Windpower, Inc. · 1992