Title:
UNINTERRUPTIBLE POWER SUPPLY SYSTEM COMPRISING ENERGY STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/159910
Kind Code:
A1
Abstract:
The present invention relates to an uninterruptible power supply system comprising an energy storage system (ESS). The uninterruptible power supply system, according to the present invention, comprises an ESS and is connected to a grid. The uninterruptible power supply system comprises: a first converter for converting an alternating current voltage of the grid into a direct current voltage; a second converter connected in series to the first converter, for converting the direct current voltage outputted from the first converter into an alternating current voltage and transferring same to a load; the ESS comprising a battery electrically connected to a node between the first converter and the second converter, for performing charging and discharging; and a PLC for receiving the operation statuses of the first and second converters, and on the basis thereof, controlling the operation of the uninterruptible power supply system, wherein the PLC determines the operation mode of the ESS by using the received operation statuses of the first and second converters.
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Inventors:
YUN DONG-JIN (KR)
KIM JI-HONG (KR)
LEE YUN-JAE (KR)
LEE JI-HEON (KR)
KIM MIN-JAE (KR)
KIM JI-HONG (KR)
LEE YUN-JAE (KR)
LEE JI-HEON (KR)
KIM MIN-JAE (KR)
Application Number:
PCT/KR2017/009274
Publication Date:
September 07, 2018
Filing Date:
August 24, 2017
Export Citation:
Assignee:
LSIS CO LTD (KR)
International Classes:
H02J9/06; H02J3/32
Foreign References:
| KR101187836B1 | 2012-10-08 | |||
| KR20140058770A | 2014-05-15 | |||
| KR200366913Y1 | 2004-11-10 | |||
| KR20160131408A | 2016-11-16 | |||
| KR101425141B1 | 2014-09-25 |
Other References:
See also references of EP 3591798A4
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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