US 12,237,808 B2
Apparatus for analyzing light-induced degradation and lid healing process characteristic of solar cell module
Soo Min Kim, Gyeongsangbuk-do (KR); and Min Kwang Seok, Gyeongsangbuk-do (KR)
Assigned to Gumi Electronics & Information Technology Research Institute, Gyeongsangbuk-do (KR)
Filed by Gumi Electronics & Information Technology Research Institute, Gyeongsangbuk-do (KR)
Filed on Jun. 23, 2021, as Appl. No. 17/355,471.
Claims priority of application No. 10-2021-0077514 (KR), filed on Jun. 15, 2021.
Prior Publication US 2022/0399855 A1, Dec. 15, 2022
Int. Cl. H02S 50/00 (2014.01); H01F 7/20 (2006.01)
CPC H02S 50/00 (2013.01) [H01F 7/20 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An apparatus for analyzing a light-induced degradation (LID) phenomenon and healing characteristics of a p-type solar cell module, the apparatus being configured to analyze LID reduction characteristics of the solar cell module, the apparatus comprising:
a resonant heating mechanism, on which the solar cell module is mounted, and configured to measure and analyze the LID reduction characteristics of the solar cell module;
an induction coil plate including a coil that forms an induced magnetic field in an interior of the resonant heating mechanism and an inverter that generates a high-frequency induced AC electromagnetic field;
a treatment unit configured to supply selective exciting electric power and heat only to solar cells in an interior of the solar cell module with the induced magnetic field generated from the induction coil plate;
a monitoring unit configured to measure and analyze a degree, by which the LID and the healing occur, through measurement of LID reduction states and characteristics measured by the solar cell module;
a power supply unit configured to supply electric power to the induction coil plate to apply a frequency and a current to the solar cell module located in the resonant heating mechanism; and
an infrared ray temperature sensor unit configured to sense a surface temperature of the solar cell module in a noncontact scheme,
wherein the induction coil plate is horizontally located at a lower portion of the resonant heating mechanism to apply a vertical load due to a dead load of the solar cell module,
wherein the induction coil plate includes a plurality of coil holes formed on a surface thereof such that a frame of the solar cell module is located deep,
wherein the induction coil plate generates an induced AC magnetic field by using a half-bridge resonance circuit,
wherein the treatment unit supplies an induced resonant frequency of an AC wave to the solar cell module located in the resonant heating mechanism through the inverter, and
wherein the treatment unit applies a uniform current to the solar cell module through the power supply unit that excites the solar cell module.