Methods and apparatus for controlling a synchronous electric mot

Details Methods and apparatus for controlling a synchronous electric mot Methods and apparatus for controlling a synchronous electric mot

1997-09-30

1999-09-14

Shoop, Jr., William M.

Electricity: motive power systems

Synchronous motor systems

H02P 146

Patent

active

059528095

ABSTRACT:
A control device for a three-phase motor of a fan for a motor vehicle includes a current generator for the armature winding of the motor corresponding to each phase. Each current generator receives an input command signal such that the vector defined by the current intensities generated by the current generators is proportional to the vector V-ZI where V is a vector defined by the different voltages measured for the windings, I is a vector defined by the different currents measured for the windings, and Z is an operator corresponding to the impedance of the windings.

REFERENCES:
Saso Vlahu: "New brushless AC servo drive uses isolated gate biopolar power transistors and a CPU to obtain high dynamic performance with exceptionally high reliabity and efficiency" Oct. 7, 1990, Conference Record of the Industry Applications Society Annual Mtg, Seattle, Oct. 7-12, 1990, vol. 1, Nr. meeting 25, pp. 6856-6890, Institute of Electrical and Electronics Engineers XP000204096.
French Search Report dated Jun. 20, 1997.

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