Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1997-09-18
1999-10-12
Ip, Paul
Electricity: motive power systems
Induction motor systems
Primary circuit control
318807, 318432, 318434, 318801, H02P 528, H02P 700
Patent
active
059659955
ABSTRACT:
A method and apparatus used with a field oriented motor controller for providing corrected transient inductance estimates during normal motor operation. The invention monitors q-axis feedback and command voltages and, based on an error therebetween, modifies a transient inductance estimate to compensate for the error and force the feedback voltage to equal the command voltage thereby facilitating field oriented control. The invention can be used either during a commissioning procedure to provide an inductance correction table for use during normal motor operation or can be used during normal motor operation to tune the inductance estimate.
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Kerkman Russel J.
Rowan Timothy M.
Seibel Brian J.
Allen-Bradley Company LLC
Horn John J.
Ip Paul
Jaskolski Michael A.
Miller John M.
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