Electricity: motive power systems – Induction motor systems – Primary circuit control
Reexamination Certificate
2008-04-10
2010-10-26
Benson, Walter (Department: 2837)
Electricity: motive power systems
Induction motor systems
Primary circuit control
C318S811000, C318S139000
Reexamination Certificate
active
07821224
ABSTRACT:
A voltage estimation system for motor control feedback is described. The system may include one or more control modules which may generate voltage commands. An overmodulation or “clipping” module receiving a voltage command can generate a clipped voltage. Rather than measuring directly, a voltage estimator may estimate the clipped voltage based on the duty cycle command to the inverter. This estimated voltage may then be used by a flux estimator to estimate a flux value. Other embodiments are described and claimed.
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Hofmann et al., Stator-Flux-Based Vector Control of Induction Machines in Magnetic Saturation, IEEE Transactions on Industry Applications, vol. 33, No. 4, Jul./Aug. 1997, pp. 935-942.
Baglino Andrew David
Hofmann Heath
Nergaard Troy Adam
Benson Walter
Luo David S
Patent Law Office of David G. Beck
Tesla Motors, Inc.
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