Title:
Power conditioner and data acquisition device
Document Type and Number:
Japanese Patent JP6362445
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a power conditioner and data collector which are capable of grasping an accurate selling power value while suppressing a cost.SOLUTION: A power conditioner 2 for converting DC power generated by a solar cell 1 to AC power to make an inverse load flow into a commercial system 8 comprises a calculation unit 14 for: calculating a temperature variation value of an isolation transformer 5 interposed between the power conditioner 2 and the commercial system 8 on the basis of temperature information (ambient temperature measurement value 11a, internal temperature measurement value 15a, etc.) from a measuring instrument (ambient temperature measuring instrument 11, temperature measuring instrument 15, etc.) for measuring a temperature of the isolation transformer 5; calculating the isolation transformer 5's power loss value corresponding to the temperature variation value; and estimating selling power obtained by subtracting the power loss value from a power value of power inversely flowing from the power conditioner 2 into the commercial system 8.
Inventors:
Hiroshi Ito
Application Number:
JP2014125639A
Publication Date:
July 25, 2018
Filing Date:
June 18, 2014
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02J3/38; H02J3/46; H02J13/00; H02M7/48
Domestic Patent References:
| JP11069631A | ||||
| JP2011244635A | ||||
| JP2013143784A | ||||
| JP2003061264A | ||||
| JP2004129483A | ||||
| JP2014053982A |
Foreign References:
| US20050018454 |
Attorney, Agent or Firm:
Hiroaki Sakai