SOLAR ENERGY UTILIZATION SYSTEM, AND COOL BOX, AIR CONDITIONER OR PUMP INCLUDED THEREIN

• Main Authors: KATAOKA KOHTAROH, WAKAIKI SHUJI, ABE SHINICHI, SHIOMI TAKESHI, IWATA HIROSHI, SHIBATA AKIHIDE, MIYATA AKIO, NOMURA MASARU, IMADE MASASHI
• Format: Patent
• Language: English
• Published: 03.12.2015
• Subjects: BLASTING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS,e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USERAPPLICATIONS; COMBINED HEATING AND REFRIGERATION SYSTEMS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PHYSICS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES; SYSTEMS FOR STORING ELECTRIC ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A solar energy utilization system includes a solar panel, a motor that is driven by solar output power, and a motor stall prevention device that prevents the motor during drive from stalling, and as the motor stall prevention device, any of following devices is selected: (a) a motor stall prevention device that limits solar output voltage to voltage higher than voltage at which the solar panel outputs maximum power at the point in time; (b) a motor stall prevention device that limits solar output voltage to voltage at which, when the output voltage is changed on a P-V curve, a change rate becomes negative; and (c) a motor stall prevention device that is configured by a capacitor which is connected in parallel to the solar panel and stores power generated by the solar panel.