公开(公告)号：US20150200623A1

公开(公告)日：2015-07-16

申请号：US14479179

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Younjong KANG ,  Myonghwan KIM ,  Myungsoo HAM ,  Wontae HAM ,  Giyob PARK ,  Byoungsu YOON

IPC: H02S40/32 ,  H02J7/35 ,  H02S40/34

CPC classification number: H02S40/32 ,  H02J7/35 ,  H02M1/14 ,  H02M3/335 ,  H02M7/493 ,  H02M7/5387 ,  H02S40/34 ,  Y02E10/56

Abstract: A photovoltaic module is discussed. The photovoltaic module includes a solar cell module including a plurality of solar cells and a junction box attached to a rear surface of the solar cell module, the junction box including a power conversion module to convert direct current (DC) voltage supplied from the solar cell module into alternating current (AC) voltage and to output the AC voltage, wherein the power conversion module included at least one bypass diode to receive the DC voltage from the solar cell module, a converter unit to power-convert the DC voltage from the at least one bypass diode, the converter unit including at least three interleaving converters, a capacitor to store voltage output from the converter unit, and an inverter unit to output the AC voltage using the voltage stored in the capacitor. Consequently, it is possible to stably output AC voltage.

Abstract translation: 讨论了光伏组件。 光伏模块包括太阳能电池模块，该太阳能电池模块包括多个太阳能电池和连接到太阳能电池模块背面的接线盒，该接线盒包括一个电力转换模块，用于转换从太阳能电池提供的直流（DC）电压 模块转换为交流（AC）电压并输出交流电压，其中功率转换模块包括至少一个旁路二极管以接收来自太阳能电池模块的直流电压;转换器单元，用于从直流电压 至少一个旁路二极管，所述转换器单元包括至少三个交错转换器，用于存储来自所述转换器单元的电压输出的电容器;以及逆变器单元，用于使用所述电容器中存储的电压输出所述AC电压。 因此，可以稳定地输出交流电压。

公开(公告)号：US20150207456A1

公开(公告)日：2015-07-23

申请号：US14479120

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Dongho HAN ,  Myonghwan KIM ,  Myungsoo HAM ,  Hyunho DO

IPC: H02S40/32 ,  H02M3/335 ,  H04B3/54 ,  H02S40/34

CPC classification number: H02S40/32 ,  H02J3/383 ,  H02J13/0031 ,  H02M3/285 ,  H02M7/48 ,  H02M2001/007 ,  H02S40/34 ,  H04B3/54 ,  H04B2203/5416 ,  Y02E10/563 ,  Y02E40/72 ,  Y04S10/123

Abstract: A power conversion apparatus, a photovoltaic module, and a communication device and a photovoltaic system including the same are discussed. The power conversion apparatus includes an inverter unit to perform alternating current (AC) voltage conversion based on direct current (DC) voltage from a solar cell module, a controller to control the inverter unit, and a communication unit to add a carrier frequency signal containing predetermined information to the converted AC voltage and output the AC voltage containing the predetermined information to a grid and, when a level of the converted AC voltage is equal to or less than a predetermined level, to add the carrier frequency signal containing the predetermined information to DC voltage and output the DC voltage containing the predetermined information to the grid. Consequently, it is possible to stably transmit information.

Abstract translation: 讨论了电力转换装置，光伏模块和通信装置以及包括它们的光伏系统。 电力转换装置包括逆变器单元，其基于来自太阳能电池模块的直流（DC）电压进行交流（AC）电压转换，控制器控制逆变器单元，以及通信单元，添加载波频率信号，该载波频率信号包含 将预定的信息转换成转换的交流电压，并将含有预定信息的交流电压输出到电网，并且当转换的交流电压的电平等于或小于预定电平时，将包含预定信息的载波频率信号加到 直流电压，并将包含预定信息的直流电压输出到电网。 因此，可以稳定地发送信息。

公开(公告)号：US20180069504A1

公开(公告)日：2018-03-08

申请号：US15698369

申请日：2017-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Myungsoo HAM ,  Myonghwan KIM ,  Sangin LEE

IPC: H02S40/32 ,  H02S40/38 ,  H02S40/34 ,  H01L31/044

Abstract: Disclosed is a photovoltaic module. The photovoltaic module includes a solar cell module including a plurality of solar cells, and an inverter unit to receive a direct current (DC) voltage from the solar cell module and convert the DC voltage received from the solar cell module into an alternating current (AC) voltage without converting a level of the DC voltage received from the solar cell module.

公开(公告)号：US20150200584A1

公开(公告)日：2015-07-16

申请号：US14479133

申请日：2014-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Younjong KANG ,  Myonghwan KIM ,  Myungsoo HAM ,  Kyungsoo JUNG

IPC: H02M1/084 ,  H02M5/458 ,  H02M3/335

CPC classification number: H02J3/383 ,  H02M3/1584 ,  H02M3/285 ,  H02M3/33523 ,  H02M2001/0048 ,  H02M2003/1566 ,  H02M2003/1586 ,  Y02B70/1491 ,  Y02E10/563

Abstract: Discussed are a power conversion apparatus and a photovoltaic module including the power conversion apparatus. The power conversion apparatus includes a converter unit to convert DC voltage from a solar cell module, the converter unit including a plurality of interleaving converters, and a controller to control the converter unit, wherein the controller changes switching periods of the interleaving converters and changes phase differences between the interleaving converters during operation sections of the interleaving converters, in response to a change of the switching periods of the interleaving converters. Consequently, it is possible to prevent instantaneous reduction of output power due to change of switching frequencies of the interleaving converters.

Abstract translation: 讨论了包括电力转换装置的电力转换装置和光伏模块。 电力转换装置包括：转换器单元，用于转换来自太阳能电池模块的直流电压，转换器单元包括多个交错转换器;以及控制器，用于控制转换器单元，其中控制器改变交错转换器的开关周期并改变相位 响应于交织转换器的切换周期的变化，交织转换器的操作部分期间的交织转换器之间的差异。 因此，可以防止由于交错转换器的开关频率的变化而导致的输出功率的瞬时降低。