POWER SUPPLY SYSTEM

• Main Author: ISHITA HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2018
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

PROBLEM TO BE SOLVED: To provide a power supply system capable of improving charging efficiency and discharging efficiency.SOLUTION: A power supply system 10 supplies an electric load 12 of a building 30 with electric power by discharge of storage batteries 14 and 24 having different charging efficiency and discharging efficiency. The power supply system 10 includes a photovoltaic power generator 16 and a controller 18. The photovoltaic power generator 16 generates electric power used for charging of the storage batteries 14 and 24 and power supply to the electric load 12. The controller 18 subtracts power dissipation of the electric load 12 from generated power of the photovoltaic power generator 16 to calculate surplus power, and controls charge and discharge of the storage batteries 14 and 24 on the basis of the surplus power.SELECTED DRAWING: Figure 1 【課題】充電効率及び放電効率を高めることの可能な電力供給システムを提供する。【解決手段】電力供給システム１０は、充電効率及び放電効率の異なる蓄電池１４，２４の放電により建物３０の電気負荷１２に電力を供給する。電力供給システム１０は、太陽光発電機１６と、制御装置１８とを備える。太陽光発電機１６は、蓄電池１４，２４の充電及び電気負荷１２への電力供給に用いられる電力を発電する。制御装置１８は、太陽光発電機１６の発電電力から電気負荷１２の消費電力を減算することにより余剰電力を算出するとともに、余剰電力に基づいて蓄電池１４，２４の充電及び放電を制御する。【選択図】図１