Title:
PHOTOVOLTAIC POWER GENERATION MODULE AND PHOTOVOLTAIC POWER GENERATION SYSTEM
Document Type and Number:
Japanese Patent JP2014165232
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a photovoltaic power generation module in which the degree of deterioration of a solar cell panel can be detected, and the panel can be repaired or replaced before reaching a critical failure.SOLUTION: A photovoltaic power generation module includes an output terminal box for taking out the power generation output of a solar cell panel, a backflow prevention diode inserted into the output line of the output terminal box, and an impedance measurement device of the solar cell panel. The impedance measurement device includes a signal generation unit for superimposing a micro signal of variable frequency to the output line, a high frequency signal detection unit provided in the output line and detecting a high frequency signal, and an impedance calculation unit for calculating the high frequency characteristics of impedance of the solar cell panel from the high frequency signal thus detected.
Inventors:
TAKI MASAKAZU
TSUDA MUTSUMI
IMAMURA KEN
TSUDA MUTSUMI
IMAMURA KEN
Application Number:
JP2013032818A
Publication Date:
September 08, 2014
Filing Date:
February 22, 2013
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
H01L31/04; G01R27/02; G01R31/26
Domestic Patent References:
| JP2013016640A | 2013-01-24 | |||
| JP2000269531A | 2000-09-29 | |||
| JP2013021193A | 2013-01-31 | |||
| JP2012099764A | 2012-05-24 |
Foreign References:
| WO2012152284A1 | 2012-11-15 | |||
| WO2011144649A1 | 2011-11-24 |
Attorney, Agent or Firm:
Tadahiko Inaba
Murakami Kanako
Shigeaki Matsui
Yasutaka Kuratani
Murakami Kanako
Shigeaki Matsui
Yasutaka Kuratani
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