Title:
POWER CONVERSION SYSTEM
Document Type and Number:
Japanese Patent JP2014183603
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To make it possible to suppress current flowing from a power collection device to a power conversion device while performing MPPT operation of a booster circuit in the power collection device.SOLUTION: A power conversion system comprises: a power collection device 2 for collecting output of a plurality of DC power supplies 1 to output the collected output; and a power conversion device 3 for converting DC power output from the power collection device 2 to AC power to output the AC power. The power conversion device 3 includes a switch 31 on the input side. The power collection device 2 includes booster circuits 21, each of which is connected to output of the DC power supply 1 and each of whose output sides is connected to output of the power collection device 2 through a capacitor C and a switch SW2, where a resistor R is connected in parallel with at least one of switches SW2. The power collection device 2 makes electric charge in the capacitor C flow to the power conversion device 3 through the resistor R when the switch SW2 is cut off and the switch 31 is closed. The switch SW2 is in a conduction state when the power conversion device 3 is during conversion operation; and the booster circuit 21 performs boosting operation when the switch SW2 is in the conduction state.
Inventors:
MIYAUCHI HIROSHI
ANDO TAKASHI
MORITA ISAO
TAKADA HAJIME
ANDO TAKASHI
MORITA ISAO
TAKADA HAJIME
Application Number:
JP2013054607A
Publication Date:
September 29, 2014
Filing Date:
March 18, 2013
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
H02M3/155; H02M7/48; G05F1/67
Domestic Patent References:
| JP2003289626A | 2003-10-10 | |||
| JP2003203663A | 2003-07-18 |
Attorney, Agent or Firm:
Hiroki Naito
Fujii Kentaro
Terauchi Italian 久郎
Fujii Kentaro
Terauchi Italian 久郎