ROTARY MACHINE CONTROL DEVICE
A control device includes: a current detector that detects a stator current flowing between a voltage applicator and a stator winding of a rotary machine; a controller that computes a voltage command value based on the stator current and a rotor position, the voltage command value being a command va...
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| Main Authors | , |
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| Format | Patent |
| Language | English |
| Published |
03.10.2024
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| Subjects | |
| Online Access | Get full text |
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| Abstract | A control device includes: a current detector that detects a stator current flowing between a voltage applicator and a stator winding of a rotary machine; a controller that computes a voltage command value based on the stator current and a rotor position, the voltage command value being a command value of a stator voltage applied to the stator winding; a PWM modulator that generates a gate signal such that a value obtained by smoothing the stator voltage matches the voltage command value, and to use this gate signal to control turning on and off of switching elements provided in the voltage applicator; a voltage integrator that computes a voltage integration value by integrating the gate signal; and a position estimator that estimates the rotor position based on the voltage integration value and the stator current. |
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| AbstractList | A control device includes: a current detector that detects a stator current flowing between a voltage applicator and a stator winding of a rotary machine; a controller that computes a voltage command value based on the stator current and a rotor position, the voltage command value being a command value of a stator voltage applied to the stator winding; a PWM modulator that generates a gate signal such that a value obtained by smoothing the stator voltage matches the voltage command value, and to use this gate signal to control turning on and off of switching elements provided in the voltage applicator; a voltage integrator that computes a voltage integration value by integrating the gate signal; and a position estimator that estimates the rotor position based on the voltage integration value and the stator current. |
| Author | KOJIMA, Tetsuya TERAMOTO, Kota |
| Author_xml | – fullname: KOJIMA, Tetsuya – fullname: TERAMOTO, Kota |
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| Notes | Application Number: US202118576522 |
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| RelatedCompanies | Mitsubishi Electric Corporation |
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| Snippet | A control device includes: a current detector that detects a stator current flowing between a voltage applicator and a stator winding of a rotary machine; a... |
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| SubjectTerms | CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION |
| Title | ROTARY MACHINE CONTROL DEVICE |
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