DIFF Main Group
H02P 21/00 Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
Introduced: January 1995
Of 14 combined children, 11 exist in both systems.
3 codes are CPC-only extensions.
IPC defines codes here since 2006.
Child Classifications
Navigate with arrow keys, Enter to open
- H02P 21/02 specially adapted for optimising the efficiency at low load since 2006 IPC+CPC Available in IPC and CPC
- H02P 21/05 specially adapted for damping motor oscillations, e.g. for reducing hunting since 2006 IPC+CPC Available in IPC and CPC
- H02P 21/06 Rotor flux based control involving the use of rotor position or rotor speed sensors since 2006 IPC+CPC Available in IPC and CPC
- H02P 21/12 Stator flux based control involving the use of rotor position or rotor speed sensors since 2006 IPC+CPC Available in IPC and CPC
- H02P 21/13 Observer control, e.g. using Luenberger observers or Kalman filters since 2006 IPC+CPC Available in IPC and CPC
- H02P 21/14 Estimation or adaptation of machine parameters, e.g. flux, current or voltage since 2006 +2 CPC IPC+CPC Available in IPC and CPC
- H02P 21/22 Current control, e.g. using a current control loop since 2016 IPC+CPC Available in IPC and CPC
- H02P 21/24 Vector control not involving the use of rotor position or rotor speed sensors since 2016 IPC+CPC Available in IPC and CPC
- H02P 21/36 Arrangements for braking or slowing; Four quadrant control since 2016 IPC+CPC Available in IPC and CPC