Inventor

NONDAHL THOMAS A

US26 patents

⚠️ This page may combine multiple inventors who share the name “NONDAHL THOMAS A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NONDAHL THOMAS A

ROCKWELL AUTOMATION TECH INC

Sensorless motor drive vector control

Induction motor analysis and control method

System and method for transient-based motor speed estimation with transient excitation

Induction motor controller

Current control of motor drives with output sinewave filter

Sensorless motor drive vector control with feedback compensation for filter capacitor current

Parameter estimation system and method for an induction motor

Switching apparatus and method

Induction motor controller

Feedforward control of motor drives with output sinewave filter

Universal adaptive torque control for PM motors for field-weakening region operation

System and method for universal adaptive torque control of permanent magnet motors

GEN ELECTRIC

Rotor for a line-start permanent-magnet motor

Flux shield for an inductor-alternator machine

RELIANCE ELECTRIC TECH

Electric motor having rotor-embedded sensor

Electric motor having rotor-embedded sensor

LIU JINGBO

Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM

Method and apparatus for estimating rotor position in a sensorless synchronous motor

ALLEN BRADLEY CO

Digital power converter

Dual phase resolver to digital converter

LU HAIHUI

Control method and system with feedback indicative of load flux

Control method and system with feedback indicative of load flux

ROCKWELL TECH LLC

Method and apparatus for rotor angle detection

MESSERSMITH DAVID M

Parameter estimation system and method for an induction motor

ROCKWELL INTERNAT TECHNOLOGIES

System and method for transient-based motor speed estimation with transient excitation

ROYAK SEMYON

Method and apparatus for increased current stability in a PWM drive