Title:
無停電電源システム
Document Type and Number:
Japanese Patent JP7413305
Kind Code:
B2
Abstract:
To provide an uninterruptible power supply system capable of realizing a high efficiency and a high reliability.SOLUTION: An uninterruptible power supply system 100 comprises: a plurality of uninterruptible power supplies U1 to Un connected in parallel to a load 31; a control apparatus 40 that controls the plurality of uninterruptible power supplies. Each uninterruptible power supply contains: an input terminal T1 that receives an AC power supplied from an AC power source 30; an output terminal T3 connected to the load; and a plurality of power conversion modules (power modules) M1 to Mm connected in parallel between the input terminal and the output terminal. The control apparatus contains: a communication part that receives operation information of each power conversion module from each power conversion module of each uninterruptible power supply; an operation part that calculates the number of proper operations of each power conversion module required for supplying a load current; and a control part that determines whether or not each power conversion module of each uninterruptible power supply is brought to an operation state or a stop state.SELECTED DRAWING: Figure 1
Inventors:
Terada Mitsuyoshi
Application Number:
JP2021049751A
Publication Date:
January 15, 2024
Filing Date:
March 24, 2021
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
H02J9/06
Domestic Patent References:
| JP2011050228A | ||||
| JP2013025343A | ||||
| JP2018098960A | ||||
| JP2020195174A | ||||
| JP11341816A | ||||
| JP2010166654A |
Foreign References:
| WO2011033820A1 | ||||
| WO2019003332A1 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office
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