Title:
METHOD OF OPTIMALLY CONTROLLING DC-DC CONVERTER
Document Type and Number:
WIPO Patent Application WO/2019/221357
Kind Code:
A1
Abstract:
The present invention relates to a method of optimally controlling a DC-DC converter, which allows a status of health (SOH) that enables an energy storage system (ESS) or a battery to be used for a long time, through an optimal charging/discharging switching control on the basis of an estimated state of charge (SOC) obtained through estimation of the SOC of the ESS. The method of optimally controlling a DC-DC converter of the present invention comprises the steps of: (A) estimating states of charge (SOC) of an ESS and a battery pack by a control unit; (B) controlling a first switching element (M1) and a second switching element (M2) of a DC-DC converter so that an objective function is optimized on the basis of the estimated SOC obtained through the estimation of the SOC by the control unit; and (C) charging/discharging the ESS and the battery pack by controlling an output voltage of the DC-DC converter while maintaining the SOC at a predetermined reference value by the control unit.
Inventors:
KIM BYUNG-CHUL (KR)
Application Number:
PCT/KR2018/016096
Publication Date:
November 21, 2019
Filing Date:
December 18, 2018
Export Citation:
Assignee:
LSIS CO LTD (KR)
International Classes:
H02J3/32; G01R31/36
Foreign References:
| KR101794837B1 | 2017-11-09 | |||
| KR101486470B1 | 2015-01-26 | |||
| KR101792537B1 | 2017-11-02 | |||
| JP2017112729A | 2017-06-22 | |||
| US20170146608A1 | 2017-05-25 |
Attorney, Agent or Firm:
DAE-A INTELLECTUAL PROPERTY CONSULTING (KR)
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