POWER SUPPLY SYSTEM

• Main Author: FUMIYA JUN
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2016
• 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

PROBLEM TO BE SOLVED: To obtain a power supply system capable of further suppressing the amount of consumption of power stored in a DC power source.SOLUTION: A power supply system 100A comprises: a bidirectional power conversion unit 5 that converts DC power supplied from an EV 200 to AC power to output the AC power and converts AC power supplied from a system 400 to DC power to output the DC power; a control power source creation unit 7 that creates a control power source by using power output from the bidirectional power conversion unit 5; a cooling fan 3 that operates using power supplied from the control power source creation unit 7 to cool at least one of the bidirectional power conversion unit 5 and the control power source creation unit 7; and a cooling fan control unit 4 that reduces power to be supplied from the control power source creation unit 7 to the cooling fan 3 as a current detection value of AC current output from the bidirectional power conversion unit 5 or a current detection value of AC current input to the bidirectional power conversion unit 5 reduces.SELECTED DRAWING: Figure 8 【課題】直流電源に蓄えられた電力の消費量をより一層抑制することが可能な電力供給システムを得ること。【解決手段】ＥＶ２００から供給される直流電力を交流電力に変換して出力し、系統４００から供給される交流電力を直流電力に変換して出力する双方向電力変換部５と、双方向電力変換部５から出力される電力により制御電源を生成する制御電源生成部７と、制御電源生成部７から供給される電力で動作し、双方向電力変換部５および制御電源生成部７の少なくとも一方を冷却する冷却ファン３と、双方向電力変換部５から出力される交流電流の電流検出値または双方向電力変換部５に入力される交流電流の電流検出値が低下するほど制御電源生成部７から冷却ファン３へ供給される電力を低下させる冷却ファン制御部４と、を備える電力供給システム１００Ａ。【選択図】図８