Induction motor module and motor incorporating same
First Claim
1. An electric motor system, comprising:
- an electronic device that is operable to establish estimated values of a plurality of electrical parameters of a motor based on electrical input data and stator resistance data.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for establishing estimated values of a plurality of electrical parameters of a motor. The plurality of electrical parameters may be established from stator resistance data and electrical input data obtained with no load on the motor. The plurality of electrical parameters may also be established from stator resistance data, electrical input data, and motor speed data obtained at at least two load conditions of the motor. The plurality of electrical parameters may comprise rotor resistance. The system and method may also be used to estimate a plurality of operating parameters of the motor based on the estimated values of a plurality of electrical parameters of the motor. The plurality of operating parameters of a motor may comprise rotor temperature, motor torque, and motor efficiency.
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Citations
35 Claims
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1. An electric motor system, comprising:
an electronic device that is operable to establish estimated values of a plurality of electrical parameters of a motor based on electrical input data and stator resistance data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An instrumentation device, comprising:
a processing system that is operable to establish estimated values of a plurality of electrical characteristics of a motor and at least one operating parameter of the motor based on the estimated values of a plurality of electrical characteristics of the motor. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. A method of operating a motor having a rotor and a stator, comprising:
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providing an instrumentation system with stator resistance data for the motor;
providing the instrumentation system with electrical input data obtained during operation of the motor with no load on the motor; and
operating the instrumentation system to establish estimated values of a plurality of electrical parameters of the motor based on the stator resistance data and the electrical input data. - View Dependent Claims (27, 28)
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29. A method of operating a motor having a rotor and a stator, comprising:
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providing an instrumentation system with stator resistance data for the motor;
providing the instrumentation system with rotor speed data and electrical input data obtained during operation of the motor with a first load on the motor;
providing the instrumentation system with rotor speed data and electrical input data obtained during operation of the motor with a second load on the motor; and
operating the instrumentation system to establish estimated values of a plurality of electrical parameters of the motor based on the stator resistance data and the rotor speed data and electrical input data obtained during operation of the motor with the first and second loads on the motor. - View Dependent Claims (30, 31)
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32. A system for estimating an operating parameter of an electric motor, comprising:
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means for establishing an estimated value of at least one electrical parameter of the motor;
means for providing rotor speed data to an electronic system;
means for providing electrical input data to the electronic system;
means for establishing an estimated value of at least one electrical parameter of the motor based on rotor speed data and electrical input data; and
means for establishing an estimated value of at least one motor operating parameter based on rotor speed data, electrical input data, and the estimated value of at least one electrical parameter of the motor.
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- 33. A program stored in a tangible medium, wherein the program is operable to enable a processing system to establish an estimated value of at least one electrical parameter of a motor based on stator resistance data and electrical input data.
Specification