发明名称 |
POWER CONVERSION DEVICE AND AIR CONDITIONER COMPRISING SAME |
摘要 |
The present invention relates to a power conversion device and an air conditioner comprising the same. The power conversion device according to one embodiment of the present invention comprises: a rectification unit for rectifying input alternating current power; a boost converter for boosting power rectified from the rectification unit and outputting the same; a dc-end capacitor connected to an output end of the boost converter; an inductor current detection unit for detecting an inductor current flowing in an inductor within the boost converter; a dc-end voltage detection unit for detecting voltages of both ends of the dc-end capacitor; and a control unit for controlling the boost converter, wherein the control unit generates and outputs a converter switching control signal by performing proportional resonance control for a duty command value of a switching element within the boost converter, on the basis of the detected inductor current and the dc-end voltage. Therefore, a harmonic current component flowing into a dc-end capacitor induced by a ripple component of an input voltage can be reduced. |
申请公布号 |
WO2016209017(A1) |
申请公布日期 |
2016.12.29 |
申请号 |
WO2016KR06738 |
申请日期 |
2016.06.24 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
KIM, Kyeongtae;LEE, Yonghwa;OH, Jeongeon |
分类号 |
H02M1/12;F24F11/02;H02M1/14;H02M7/48 |
主分类号 |
H02M1/12 |
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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