Lg Electronics Inc.

Shangrao Jinko Solar Technology Development Co., Ltd

Byoungsu Yoon

Myonghwan Kim

Giyob Park

Hyukjin Nam

Hyunrok Mun

Joonho Jeon

Jungguen Kim

Jinyoung Cho

Daehyun Shin

Byungwook Woo

Myungsoo Ham

Younjong Kang

Youngbok Jung

Kyungsoo Jung

Wontae Ham

Discussed is a photovoltaic module including: a solar cell module including a plurality of solar cells; a converter to convert a level of first direct current (DC) power input from the solar cell module, and to output second DC power; an inverter to convert the second DC power supplied from the converter into alternating current (AC) power; and a controller to control the converter and the inverter, wherein the converter comprises: a full-bridge switching part to switch the first DC power; a transformer having an input side connected to an output terminal of the full-bridge switching part; and a half-bridge switching part connected to an output side of the transformer, wherein the controller changes a switching frequency of the full-bridge switching part and the half-bridge switching part in a first section of a waveform.

Photovoltaic module

An integral inverter, usable with a solar cell module comprising a solar cell panel, can include a terminal for inputting a DC power from the solar cell panel; a bypass diode electrically connected to the terminal; an inverter member including a direct current (DC)-alternating current (AC) inverter electrically connected to the bypass diode; a case to integrate at least one of the terminal and the bypass diode with the DC-AC inverter located therein, and attached to a back surface of the solar cell panel using an adhesive; and an AC cable for outputting AC power from the case.

Integral inverter and solar cell module including the same

Discussed is an integral inverter usable with a solar cell module including a solar cell panel. The integral inverter includes a terminal connected to the solar cell panel, a bypass diode electrically connected to the terminal, an inverter member including a direct current (DC)-alternating current (AC) inverter electrically connected to the bypass diode and a case configured to integrate at least one of the terminal and the bypass diode with the DC-AC inverter located therein.

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.

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Seoul, South Korea

Byoungsu Yoon