发明名称 |
Converter control device and air conditioner including converter control device |
摘要 |
<p>A converter-control device (10) comprises: a voltage zero-cross detection unit (13) detecting zero cross of the alternate-current voltage and outputting a voltage zero cross signal; a power-source-current detection unit (12) detecting a power source current of an alternate-current power source (1); a bus-line-voltage detection unit (11) detecting a bus-line voltage across the smoothing capacitor (5) ; a PWM-signal generation unit (19) generating a PWM signal for on/off-controlling the switching unit (4), based on the power-source current, the bus-line voltage and a bus-line-voltage command value as a target voltage of the bus-line voltage; a power-source voltage-state detection unit (16) detecting a signal state of the alternate-current voltage based on the voltage zero-cross signal; anda fundamental-switching-frequency selection unit (17) selecting a fundamental switching frequency of the PWM signal based on the signal state. The unit (19) generates the PWM-signal based on a fundamental switching signal having a fundamental switching frequency selected by the unit (17)</p> |
申请公布号 |
AU2013203402(B2) |
申请公布日期 |
2015.01.22 |
申请号 |
AU20130203402 |
申请日期 |
2013.04.10 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
OTORII, YU;SAITO, KATSUHIKO;FUKUDA, MASAHIRO |
分类号 |
H02M5/42 |
主分类号 |
H02M5/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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