POWER SUPPLY SYSTEM

• Main Authors: KIMURA KENJI, IZUMI JUNTA
• Format: Patent
• Language: English; Japanese
• Published: 09.03.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SYSTEMS FOR STORING ELECTRIC ENERGY

To provide a power supply system that outputs AC power by using battery strings.SOLUTION: A power supply system 1 includes: a first power supply circuit 2 that converts DC power of a first DC sweep unit 10 including a battery string St1 into AC power with a first inverter 50 and outputs the AC power; and an AC sweep unit 3 that includes a U-phase battery string St4, a V-phase battery string St6, and a W-phase battery string St8 that are Y-connected. The output density of batteries B included in the battery string St1 is higher than that of batteries B included in the U-phase battery string St4, the V-phase battery string St6, and the W-phase battery string St8.SELECTED DRAWING: Figure 1 【課題】電池ストリングを用いて、交流電力を出力する電源システムを提供する。【解決手段】電源システム１は、電池ストリングＳｔ１を含む第１直流スウィープユニット１０の直流電力を、第１インバータ５０で交流電力に変換し出力する第１電源回路２と、Ｙ結線した、Ｕ相用電池ストリングＳｔ４、Ｖ相用電池ストリングＳｔ６、およびＷ相用電池ストリングＳｔ８を含む交流スウィープユニット３とを含む。電池ストリングＳｔ１に含まれる電池Ｂの出力密度は、Ｕ相用電池ストリングＳｔ４、Ｖ相用電池ストリングＳｔ６、およびＷ相用電池ストリングＳｔ８に含まれる電池Ｂの出力密度よりも高い。【選択図】図１