Control apparatus of motor
First Claim
1. A control apparatus for a motor including a stator with a stator coil, and a rotor including a rotor magnetic field, in which an AC voltage based on a target rotational speed is input to the stator coil as a fundamental voltage, so that magnetic interactions between a stator magnetic field generated by the stator coil and the rotor magnetic field rotate the rotor, the control apparatus comprising:
- a fundamental voltage generator configured to generate, based on the target rotational speed, a fundamental voltage command for the fundamental voltage;
a property storage configured to store a natural vibration property of the rotor when the rotor is rotating as a rotating vibration property;
a rotating state detector configured to detect a rotating position and a rotational speed of the rotor as a rotating state of the rotor; and
a harmonic voltage generator configured to generate, based on the rotating state of the rotor and the rotating vibration property, a harmonic voltage command to be superimposed on the fundamental voltage command generated by the fundamental voltage generator.
1 Assignment
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Accused Products
Abstract
In a control apparatus, a fundamental voltage generator generates, based on a target rotational speed, a fundamental voltage command for a fundamental voltage. A property storage stores a natural vibration property of a rotor when the rotor is rotating as a rotating vibration property. A rotating state detector detects a rotating position and a rotational speed of the rotor as a rotating state of the rotor. A harmonic voltage generator generates, based on the rotating state of the rotor and the rotating vibration property, a harmonic voltage command to be superimposed on the fundamental voltage command generated by the fundamental voltage generator.
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Citations
8 Claims
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1. A control apparatus for a motor including a stator with a stator coil, and a rotor including a rotor magnetic field, in which an AC voltage based on a target rotational speed is input to the stator coil as a fundamental voltage, so that magnetic interactions between a stator magnetic field generated by the stator coil and the rotor magnetic field rotate the rotor, the control apparatus comprising:
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a fundamental voltage generator configured to generate, based on the target rotational speed, a fundamental voltage command for the fundamental voltage; a property storage configured to store a natural vibration property of the rotor when the rotor is rotating as a rotating vibration property; a rotating state detector configured to detect a rotating position and a rotational speed of the rotor as a rotating state of the rotor; and a harmonic voltage generator configured to generate, based on the rotating state of the rotor and the rotating vibration property, a harmonic voltage command to be superimposed on the fundamental voltage command generated by the fundamental voltage generator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification