Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Reexamination Certificate
2008-06-17
2008-06-17
Ro, Bentsu (Department: 2837)
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
C318S254100
Reexamination Certificate
active
07388345
ABSTRACT:
An electrical machine is controlled with a combination of a physical rotor position transducer and a software position detection algorithm. The physical transducer has a reduced number of sensors, so that it will only give accurate information at high speeds. The software algorithm is executed by a low-cost processor which cannot provide sufficient information at high speeds. The controller blends the information from the two position detectors to produce an economic drive which operates over a large speed range.
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Haynes and Boone LLP
Ro Bentsu
Switched Reluctance Drives Limited
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