Control device for matrix converter
First Claim
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1. A control device for a matrix converter, comprising:
- an input voltage detector configured to detect an input voltage of the matrix converter;
an output current detector configured to detect an output current of the matrix converter;
a pulse width modulator configured to generate a pulse-width-modulation pulse command signal by using the input voltage, the output current, and an output line voltage command; and
an input voltage command calculator configured to calculate an input voltage command of the matrix converter,wherein the input voltage command calculator is configured to output, based on the input voltage detected by the input voltage detector, a signal whose waveform is shaped into a sine wave having a phase and an amplitude that are equivalent to a phase and an amplitude of a fundamental wave of the input voltage, andwherein the pulse width modulator is configured to generate the pulse-width-modulation pulse command signal by using the input voltage, the output current, the signal whose waveform is shaped into the sine wave, and the output line voltage command, and to output the pulse-width-modulation pulse command signal such that the input voltage matches the signal whose waveform is shaped into the sine wave, the pulse width modulator being configured to determine a pulse width of the pulse-width-modulation pulse command signal based on an error between the input voltage detected by the input voltage detector and the signal whose waveform is shaped into the sine wave.
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Abstract
A control device for a matrix converter includes an input voltage detector, an output current detector, a pulse width modulator, and an input voltage command calculator. The input voltage detector is configured to detect an input voltage of the matrix converter. The output current detector is configured to detect an output current of the matrix converter. The pulse width modulator is configured to generate a PWM pulse command signal by using the input voltage, the output current, and an output line voltage command. The input voltage command calculator is configured to calculate an input voltage command of the matrix converter.
15 Citations
25 Claims
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1. A control device for a matrix converter, comprising:
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an input voltage detector configured to detect an input voltage of the matrix converter; an output current detector configured to detect an output current of the matrix converter; a pulse width modulator configured to generate a pulse-width-modulation pulse command signal by using the input voltage, the output current, and an output line voltage command; and an input voltage command calculator configured to calculate an input voltage command of the matrix converter, wherein the input voltage command calculator is configured to output, based on the input voltage detected by the input voltage detector, a signal whose waveform is shaped into a sine wave having a phase and an amplitude that are equivalent to a phase and an amplitude of a fundamental wave of the input voltage, and wherein the pulse width modulator is configured to generate the pulse-width-modulation pulse command signal by using the input voltage, the output current, the signal whose waveform is shaped into the sine wave, and the output line voltage command, and to output the pulse-width-modulation pulse command signal such that the input voltage matches the signal whose waveform is shaped into the sine wave, the pulse width modulator being configured to determine a pulse width of the pulse-width-modulation pulse command signal based on an error between the input voltage detected by the input voltage detector and the signal whose waveform is shaped into the sine wave. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A control device for a matrix converter comprising:
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an input voltage detector configured to detect an input voltage of the matrix converter; an output current detector configured to detect an output current of the matrix converter; a pulse width modulator configured to generate a pulse-width-modulation pulse command signal by using the input voltage, the output current, and an output line voltage command; and an input voltage command calculator configured to calculate an input voltage command of the matrix converter; one of a first capacitor provided at an input side of the matrix converter and defining a first filter together with an inside reactance of a power supply, and a second filter provided at an input side of the matrix converter and comprising a reactor and a second capacitor; and a capacitor current detector configured to detect a current flowing through one of the first and second capacitors, wherein the input voltage command calculator is configured to output a signal whose waveform is shaped into a sine wave having a phase and an amplitude that are equivalent to a phase and an amplitude of a fundamental wave of the input voltage, wherein the pulse width modulator is configured to generate the pulse-width-modulation pulse command signal by using the input voltage, the output current, the signal whose waveform is shaped into the sine wave, and the output line voltage command, and to output the pulse-width-modulation pulse command signal such that the input voltage matches the signal whose waveform is shaped into the sine wave, and wherein the pulse width modulator is configured to output the pulse-width-modulation pulse command signal such that a terminal voltage of one of the first and second capacitors obtained by using the current flowing through one of the first and second capacitors matches the signal whose waveform is shaped into the sine wave. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification