Decoupling a harmonic signal from a signal path

Details Decoupling a harmonic signal from a signal path Decoupling a harmonic signal from a signal path

2006-05-09

2006-05-09

Martin, David (Department: 2837)

Electricity: motive power systems

Positional servo systems

'reset' systems

C318S610000, C318S621000, C318S799000, C318S809000

Reexamination Certificate

active

07042186

ABSTRACT:
A method for decoupling a harmonic signal from an input signal wherein the harmonic signal is harmonic relative to a signal other than the input signal. An angular position of the other signal is multiplied by a value representing the harmonic to obtain an angular position multiple. A harmonic decoupling block uses the angular position multiple to obtain correction signals representing the harmonic signal, and subtracts the correction signals from the input current to decouple the harmonic signal from the input signal. This method is useful for decoupling unwanted harmonics from currents into which high-frequency signals have been injected for control of electric motors.

REFERENCES:
patent: 5565752 (1996-10-01), Jansen et al.
patent: 5585709 (1996-12-01), Jansen et al.
patent: 6069467 (2000-05-01), Jansen
patent: 6388420 (2002-05-01), Jansen et al.
patent: 6628099 (2003-09-01), Iwaji et al.
patent: 2003/0057912 (2003-03-01), Iwaji et al.
Ha/Sul, “Sensorless Field-Orientation Control of an Induction Machine by High-Frequency Signal Injection”, IEEE Transactions on Industry Applications, vol. 35, No. 1, Jan./Feb. 1999, pp. 45-51.
Ha/Sul/Ide/Murokita/Sawamura, “Physical Understanding of High Frequency Injection Method to Sensorless Drives of an Induction Machine”, Conference Record of the 2000 IEEE Industry Applications Conference, pp. 1802-1808.

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