Control apparatus for AC rotary machine
First Claim
1. A control apparatus for an AC rotary machine that includes a first winding and a second winding and performs control operations on two rotary axes, comprising:
- a current detection unit that detects a current of the first winding and a current of the second winding, respectively;
a basic voltage calculation unit configured to calculate a basic voltage based on a current command value and an electric constant of the AC rotary machine;
a first voltage calculation unit configured to calculate a first deviation between the current command value and the detected current of the first winding, to calculate a first voltage command value based on the first deviation, to calculate a second deviation between the current command value and the detected current of the second winding, to calculate a compensation voltage command value based on the second deviation, to calculate a compensated voltage command value by adding the compensation voltage command value to the first voltage command value, and to calculate a voltage command value of the first winding by adding the first voltage command value to the basic voltage;
a second voltage calculation unit configured to calculate a second voltage command value based on the second deviation, and to calculate a voltage command value of the second winding by adding the second voltage command value to the basic voltage;
a first voltage application unit configured to apply a voltage to the first winding in correspondence with the voltage command value of the first winding; and
a second voltage application unit configured to apply the voltage to the second winding in correspondence with the voltage command value of the second winding.
1 Assignment
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Accused Products
Abstract
A control apparatus for an AC rotary machine includes a current detection unit that detects a current of a first winding and a current of a second winding, a basic voltage calculation unit that calculates a basic voltage on the basis of a current command value, a first voltage calculation unit that calculates a voltage command value of the first winding on the basis of the current command value, the basic voltage, and the current of the first winding, and a second voltage calculation unit that calculates a voltage command value of the second winding on the basis of the current command value, the basic voltage, and the current of the second winding. At least the first voltage calculation unit calculates the voltage command value of the first winding by further taking into account the current of the second winding.
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Citations
17 Claims
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1. A control apparatus for an AC rotary machine that includes a first winding and a second winding and performs control operations on two rotary axes, comprising:
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a current detection unit that detects a current of the first winding and a current of the second winding, respectively; a basic voltage calculation unit configured to calculate a basic voltage based on a current command value and an electric constant of the AC rotary machine; a first voltage calculation unit configured to calculate a first deviation between the current command value and the detected current of the first winding, to calculate a first voltage command value based on the first deviation, to calculate a second deviation between the current command value and the detected current of the second winding, to calculate a compensation voltage command value based on the second deviation, to calculate a compensated voltage command value by adding the compensation voltage command value to the first voltage command value, and to calculate a voltage command value of the first winding by adding the first voltage command value to the basic voltage; a second voltage calculation unit configured to calculate a second voltage command value based on the second deviation, and to calculate a voltage command value of the second winding by adding the second voltage command value to the basic voltage; a first voltage application unit configured to apply a voltage to the first winding in correspondence with the voltage command value of the first winding; and a second voltage application unit configured to apply the voltage to the second winding in correspondence with the voltage command value of the second winding. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification