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公开(公告)号：US10270387B2
公开(公告)日：2019-04-23
申请号：US15184143
申请日：2016-06-16
Applicant: LG ELECTRONICS INC.
Inventor： Kiok Lee , Myonghwan Kim
Abstract: A photovoltaic module includes: a solar cell module including a plurality of solar cells; and a junction box including a capacitor unit attached to one face of the solar cell module and that to stores DC power supplied from the solar cell module, and a dc/dc converter unit to convert the level of the stored DC power and output the same. Thus, power may be easily supplied through the junction box.
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公开(公告)号：US09281759B2
公开(公告)日：2016-03-08
申请号：US13749870
申请日：2013-01-25
Applicant: LG ELECTRONICS INC.
Inventor： Kiok Lee , Eonjoo Hwang , Myonghwan Kim
CPC classification number: H02M7/537 , H02J3/385 , H02J5/00 , H02M3/156 , H02M3/1582 , H02M3/1584 , H02M3/3353 , H02M7/53871 , H02M2001/007 , H02M2003/1586 , Y02E10/58
Abstract: A power converting apparatus and a photovoltaic module are discussed. The power converting apparatus includes a converter including a tapped inductor and a first switch, the converter converting a level of an input direct current (DC) voltage and outputting the level-converted DC voltage, and an inverter including a plurality of switches, the inverter converting the level-converted DC voltage into an alternating current (AC) voltage. The inverter operates separately in a first switching mode where the inverter performs a switching operation at a first frequency for a first period of the converted AC voltage and a second switching mode where the inverter performs a switching operation at a second frequency for a second period of the converted AC voltage, the second frequency being lower than the first frequency.
Abstract translation: 讨论了功率转换装置和光伏模块。 电力转换装置包括转换器，包括抽头电感器和第一开关，转换器转换输入直流（DC）电压的电平并输出电平转换的直流电压，以及逆变器包括多个开关，逆变器 将电平转换的DC电压转换成交流（AC）电压。 逆变器在第一开关模式下分别操作，在第一开关模式中，在转换的交流电压的第一周期中逆变器以第一频率进行开关操作，以及第二开关模式，其中逆变器以第二频率执行开关操作第二周期 转换的交流电压，第二频率低于第一频率。
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