POWER SUPPLY SYSTEM

• Main Authors: KIMURA KENJI, IZUMI JUNTA
• Format: Patent
• Language: English; Japanese
• Published: 03.03.2023
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; 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: an AC 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 51 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. An output density of batteries B of the battery string St1 is higher than that of batteries B of the AC sweep unit 3. The AC sweep unit 3 and the AC power supply circuit 2 output AC power. After a predetermined time period has elapsed, the output of the AC power from the AC power supply circuit 2 is stopped.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５１で交流電力に変換し出力する交流電源回路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の電池Ｂの出力密度は、交流スウィープユニット３の電池Ｂの出力密度よりも高い。交流スウィープユニット３および交流電源回路２から交流電力を出力し、所定期間経過後、交流電源回路２からの交流電力の出力を停止する。【選択図】図１