Title:
PV POWER CONDITIONER
Document Type and Number:
Japanese Patent JP2015154517
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a PV power conditioner capable of supplying generated power to a system power source by efficiently operating a solar battery while widening a range of a DC voltage that can be inputted.SOLUTION: The PV power conditioner includes: an MPPT control section 15 for regulating a reference voltage V1ref so as to maximize output power P1 of a solar battery 2; and a chopper mode switching section 17 for switching an operation mode between a chopper drive mode and a chopper stop mode on the basis of a comparison result of comparing an input voltage V1 with a switching voltage threshold Vth higher than a reference voltage V2ref. In the chopper drive mode, an inverter control section 30 controls the switching operation of an inverter circuit 13 on the basis of a differential between an intermediate voltage V2 and the reference voltage V2ref. In the chopper stop mode, the inverter control section 30 controls the switching operation of the inverter circuit 13 on the basis of the differential between the intermediate voltage V2 and the reference voltage V1ref.
Inventors:
MAKITANI ATSUSHI
Application Number:
JP2014024061A
Publication Date:
August 24, 2015
Filing Date:
February 12, 2014
Export Citation:
Assignee:
SANSHA ELECTRIC MFG CO LTD
International Classes:
H02M7/48; G05F1/67; H01L31/04
Domestic Patent References:
| JP2006238629A | 2006-09-07 | |||
| JP2013225191A | 2013-10-31 |
Attorney, Agent or Firm:
Satoshi Otsuki
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