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Solar power generation system. Solar denryoku hassei sochi

Abstract

In a conventional solar power generation system having shunt elements for controlling generated power and supplying the controlled power to a load, it is difficult to carry out a stable power control, because the shunt characteristics of an analogue shunt element driving circuit vary widely as compared with a digital shunt element driving circuit, as the temperature varies. According to the present invention, in a solar power generation system having a plurality of solar cells divided into two of the first and second cell groups and a first and a second shunt element driving means provided for the first and second cell groups, the first shunt element driving means is composed of a combination of a resisance and level shift diode arranged, and the second shunt element driving means is composed of a combination of a transistor and level shift diode arranged. A stable current control of the shunt elements can be therefore realized, because the control voltage range of the first and second shunt element driving means is changed so as to be expanded, as the temperature varies, so that their overlapped voltage range is kept constant. 7 figs.
Authors:
Ohaku, T [1] 
  1. Toshiba Corp., Kawasaki (Japan)
Publication Date:
Dec 21, 1990
Product Type:
Patent
Report Number:
JP 2-308315
Reference Number:
NEDO-91-960097; EDB-91-087586
Resource Relation:
Patent File Date: 23 May 1989
Subject:
14 SOLAR ENERGY; ELECTRIC POTENTIAL; TEMPERATURE DEPENDENCE; ELECTRIC POWER; CONTROL SYSTEMS; STABILIZATION; SOLAR CELLS; POWER GENERATION; POWER SYSTEMS; ANALOG SYSTEMS; DIGITAL CIRCUITS; SEMICONDUCTOR DIODES; TRANSISTORS; DIRECT ENERGY CONVERTERS; ELECTRONIC CIRCUITS; ENERGY SYSTEMS; EQUIPMENT; PHOTOELECTRIC CELLS; PHOTOVOLTAIC CELLS; POWER; SEMICONDUCTOR DEVICES; SOLAR EQUIPMENT; 140600* - Solar Energy- Photovoltaic Power Systems
OSTI ID:
5606701
Country of Origin:
Japan
Language:
Japanese
Availability:
Available from Japan Patent Information Organization or International Patent Documentation Center
Submitting Site:
NEDO
Size:
Pages: (7 p)
Announcement Date:
May 13, 2001

Citation Formats

Ohaku, T. Solar power generation system. Solar denryoku hassei sochi. Japan: N. p., 1990. Web.
Ohaku, T. Solar power generation system. Solar denryoku hassei sochi. Japan.
Ohaku, T. 1990. "Solar power generation system. Solar denryoku hassei sochi." Japan.
@misc{etde_5606701,
title = {Solar power generation system. Solar denryoku hassei sochi}
author = {Ohaku, T}
abstractNote = {In a conventional solar power generation system having shunt elements for controlling generated power and supplying the controlled power to a load, it is difficult to carry out a stable power control, because the shunt characteristics of an analogue shunt element driving circuit vary widely as compared with a digital shunt element driving circuit, as the temperature varies. According to the present invention, in a solar power generation system having a plurality of solar cells divided into two of the first and second cell groups and a first and a second shunt element driving means provided for the first and second cell groups, the first shunt element driving means is composed of a combination of a resisance and level shift diode arranged, and the second shunt element driving means is composed of a combination of a transistor and level shift diode arranged. A stable current control of the shunt elements can be therefore realized, because the control voltage range of the first and second shunt element driving means is changed so as to be expanded, as the temperature varies, so that their overlapped voltage range is kept constant. 7 figs.}
place = {Japan}
year = {1990}
month = {Dec}
}