Title:
電力変換装置及び太陽光発電装置
Document Type and Number:
Japanese Patent JP6756284
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide PID (Potential Induced Degradation) measures effective for solar power generation panels already installed at a site.SOLUTION: A power conversion device 2 for guiding an output of a solar power generation panel 1 to a DC bus in which one of two lines is a positive potential and the other is a negative potential, includes: an input terminal for receiving an input voltage in a state where an N line is ungrounded and is 0 or a positive potential and a P line is a positive potential higher than the N line, while the output two lines of the solar power generation panel are denoted as P line and N line; and a step-up/step-down chopper 22, connected so that a switching element Qx and a diode Dx are located on the side of the P line, for changing potential on a higher potential side of the input terminal to negative potential to make it potential of one of the two lines of an own output side to generate a desired voltage between the potential and potential of the other of the two lines of the output side.SELECTED DRAWING: Figure 5
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Inventors:
Naoki Ayai
Application Number:
JP2017056148A
Publication Date:
September 16, 2020
Filing Date:
March 22, 2017
Export Citation:
Assignee:
Sumitomo Electric Industries, Ltd.
International Classes:
H02M3/155; H02M7/48
Domestic Patent References:
| JP2008047819A | ||||
| JP10014244A | ||||
| JP2014135073A |
Attorney, Agent or Firm:
Patent Business Corporation Suncrest International Patent Office