Shaft sensorless angular position and velocity estimation...

Details Shaft sensorless angular position and velocity estimation... Shaft sensorless angular position and velocity estimation...

2006-07-04

2006-07-04

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Speed

Reexamination Certificate

active

07072790

ABSTRACT:
A shaft sensorless rotor angular position and velocity sensing system for a ynamoelectric machine that includes: a reference frame transformation function for transforming measured currents and potentials applied to a stator of the dynamoelectric machine to a two-phase α-β stationary frame to produce transformed currents Iα,Iβand transformed potentials Vα,Vβ; first and second multipliers to produce signals Iα*RS,Iβ*RS; first and second summers to produce signals Vα,−Iα*RS,Vβ−Iβ*RS; first and second lag functions to produce signals1s+ωi⁢(Vα-Iα*Rs),1s+ωi⁢(Vβ-Iβ*Rs);third and fourth multipliers to produce signals Iα*Lq,Iβ*Lq; third and fourth summers to produce signals1s+ωi⁢(Vα-Iα*Rs)-Iα*Lq,1s+ωi⁢(Vβ-Iβ*Rs)-Iβ*Lqthat correspond to extended rotor flux values λext—α,λext—β; and a phase lock loop (PLL) to derive estimated rotor angular position and velocity values {circumflex over (θ)}, {circumflex over (ω)} for the dynamoelectric machine from the extended rotor flux values λext—α,λext—β.

REFERENCES:
patent: 5461293 (1995-10-01), Rozman et al.

Affiliated with

Also associated with

Rating

Shaft sensorless angular position and velocity estimation... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shaft sensorless angular position and velocity estimation..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shaft sensorless angular position and velocity estimation... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3563848