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Title:
SOLAR ENERGY USE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/025557
Kind Code:
A1
Abstract:
A solar energy use system (1) comprises a solar panel (10), a motor (30) which is driven with an inverter circuit (21) which functions as a motor drive circuit, by power which the solar panel outputs; a solar output voltage monitoring unit (24) which is a monitor unit which monitors the input or output of the solar panel and which is also a monitor unit which monitors the input or output of the inverter circuit; and a control unit (22). The control unit has a control mode which controls the inverter circuit to maintain a voltage wherein the output voltage of the solar panel exceeds a maximum power point voltage. In this control mode, the control unit carries out a control which changes the motor RPMs iteratively at a prescribed timing.

Inventors:
KATAOKA KOHTAROH
SHIBATA AKIHIDE
WAKAIKI SHUJI
NOMURA MASARU
SHIOMI TAKESHI
IWATA HIROSHI
Application Number:
PCT/JP2014/060052
Publication Date:
February 26, 2015
Filing Date:
April 07, 2014
Export Citation:
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Assignee:
SHARP KK (JP)
International Classes:
G05F1/67; H02J7/35; H02M3/28; H02M7/48; H02S40/32
Domestic Patent References:
WO2006080112A12006-08-03
Foreign References:
JP2013008206A2013-01-10
JP2013097596A2013-05-20
JP2013099069A2013-05-20
JP2012244652A2012-12-10
Attorney, Agent or Firm:
SANO SHIZUO (JP)
Shizuo Sano (JP)
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