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Patent Agency Ranking
公开(公告)号：US20170271876A1
公开(公告)日：2017-09-21
申请号：US15459350
申请日：2017-03-15
Applicant: LG ELECTRONICS INC.
Inventor： Dongho HAN , Giyob PARK , Myonghwan KIM , Yunsu BAE
CPC classification number: H02J3/383 , H01L31/0201 , H01L31/0481 , H01L31/0488 , H02J3/385 , H02J3/46 , H02M3/33507 , H02S40/32 , H02S40/34 , H02S50/00 , Y02E10/58
Abstract: A photovoltaic module includes a solar cell module including multiple solar cells, and first and second conductive lines connected respectively to first and second solar cells among the solar cells, and a junction box attached to the solar cell module. The junction box includes a power conversion unit including a capacitor unit located between the first and second conductive lines, a converter unit to change the level of a DC voltage at opposite ends of the capacitor unit and to output the DC voltage, and a controller to control the converter unit. When shading occurs in some of the solar cells, the power conversion unit supplies a second current, the level of which is lower than the level of a first current supplied before shading occurs, whereby the possibility of generation of a hot spot may be reduced despite the absence of bypass diodes when shading occurs.
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公开(公告)号：US20160225935A1
公开(公告)日：2016-08-04
申请号：US15097073
申请日：2016-04-12
Applicant: LG ELECTRONICS INC.
Inventor： Hyunjung PARK , Daeyong LEE , Youngho CHOE , Dongho HAN
IPC: H01L31/18
CPC classification number: H01L31/18 , H01L31/022425 , H01L31/068 , H01L31/1804 , Y02E10/547 , Y02P70/521
Abstract: A method for manufacturing a solar cell, the method comprising: forming an emitter region that forms a p-n junction with a semiconductor substrate of a first conductive type; forming a passivation layer on the semiconductor substrate; forming a dopant layer containing impurities of the first conductive type on the passivation layer; and locally forming a back surface field region at the semiconductor substrate by irradiating laser beams onto the semiconductor substrate to diffuse the impurities of the first conductive type into the semiconductor substrate.
Abstract translation: 一种制造太阳能电池的方法，所述方法包括：形成与第一导电类型的半导体衬底形成p-n结的发射极区域; 在所述半导体衬底上形成钝化层; 在所述钝化层上形成含有所述第一导电类型的杂质的掺杂剂层; 并且通过将半导体衬底上的激光照射到半导体衬底上来将第一导电类型的杂质扩散到半导体衬底中，在半导体衬底上局部形成背面场区域。
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3.发明申请POWER CONVERSION APPARATUS, PHOTOVOLTAIC MODULE AND COMMUNICATION DEVICE AND PHOTOVOLTAIC SYSTEM INCLUDING THE SAME 有权功率转换装置，光电模块和通信装置和包括其的光伏系统公开(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
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。
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公开(公告)号：US20190312437A1
公开(公告)日：2019-10-10
申请号：US16450448
申请日：2019-06-24
Applicant: LG ELECTRONICS INC.
Inventor： Dongho HAN , Giyob PARK , Myonghwan KIM , Yunsu BAE
Abstract: A photovoltaic module includes a solar cell module including multiple solar cells, and first and second conductive lines connected respectively to first and second solar cells among the solar cells, and a junction box attached to the solar cell module. The junction box includes a power conversion unit including a capacitor unit located between the first and second conductive lines, a converter unit to change the level of a DC voltage at opposite ends of the capacitor unit and to output the DC voltage, and a controller to control the converter unit. When shading occurs in some of the solar cells, the power conversion unit supplies a second current, the level of which is lower than the level of a first current supplied before shading occurs, whereby the possibility of generation of a hot spot may be reduced despite the absence of bypass diodes when shading occurs.
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公开(公告)号：US20190115868A1
公开(公告)日：2019-04-18
申请号：US16159204
申请日：2018-10-12
Applicant: LG ELECTRONICS INC.
Inventor： Dongho HAN , Hyunho DO , Juhwan YUN
Abstract: According to an embodiment of the present invention, there is provided a photovoltaic module including a photovoltaic solar cell, a converter to convert a level of a direct current power from the photovoltaic solar cell, an inverter to convert the direct current power from the converter into an alternating current power, a controller to control the converter and the inverter, and a communication unit to perform electric power line communication with a gateway and at least one nearby photovoltaic module, in which the communication unit periodically transmits communication state information to the gateway and the at least one nearby photovoltaic module using the electric power line communication, and receives a message transmitted by the gateway along a path determined according to the communication state information.
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