-
公开(公告)号：US11085968B2
公开(公告)日：2021-08-10
申请号：US16467085
申请日：2017-12-06
发明人： Sang Hui Park , Hwa Seob Song
IPC分类号： G01R31/382 , G01R31/392 , H01M10/48
摘要： A method for estimating lifespan of a battery in accordance with the present invention, comprising steps of: fully discharging the battery; partially charging the fully discharged battery under a predetermined charging condition; acquiring pieces of voltage information at multiple specific points of measurement time while partially charging the battery; and calculating remaining capacity of the battery by using the acquired pieces of voltage information. An apparatus for estimating lifespan of a battery in accordance with the present invention, comprising: a reference data-storing unit for storing reference data that become a basis of estimating the lifespan of the battery; a charge/discharge-controlling unit for fully discharging the battery to estimate the lifespan of and partially charging the battery under a predetermined charging condition; a voltage information-acquiring unit for acquiring pieces of voltage information of the battery at multiple specific points of measurement time while partially discharging the battery; and a remaining capacity-calculating unit for calculating remaining capacity of the battery by using the acquired voltage information and the reference data.
-
公开(公告)号：US11322950B2
公开(公告)日：2022-05-03
申请号：US16467079
申请日：2017-12-06
发明人： Sang Hui Park , Geon Ho An
摘要： A method of operating an ESS with optimal efficiency includes: collecting charge/discharge efficiency data of a PCS; collecting charge/discharge efficiency data of a battery depending on current state of charge of the battery; creating charge/discharge efficiency data of a unit BESS including the PCS and the battery by using the collected data; determining optimal charge/discharge levels of at least two unit-BESSs included in the ESS by using charge/discharge efficiency data of the at least two unit-BESSs to satisfy commanded input/output power values of the whole ESS at a current point of time; and charging or discharging the at least two unit-BESSs depending on the determined optimal charge/discharge power values.
-
公开(公告)号：US11312264B2
公开(公告)日：2022-04-26
申请号：US16975283
申请日：2019-07-10
发明人： Sang Hui Park , Seo Woo Lee
摘要： An ESS charging and discharging operation method may include the steps of: checking whether SOC of the ESS is within an operable range, and performing an SOC management operation if the SOC of the ESS is not within the operable range; performing, if the SOC of the ESS is within the operable range, a catenary wire voltage control operation based on range of catenary wire voltage and range of variation rate of the catenary wire voltage; performing the SOC management operation after the ESS is charged or discharged depending on the catenary wire voltage control operation over unit time, if output current of the ESS does not exceed current reference value; and stopping the catenary wire voltage control operation and switching the operation to a standby state.
-
公开(公告)号：US10908222B2
公开(公告)日：2021-02-02
申请号：US16067459
申请日：2016-12-23
发明人： Sang Hui Park , Hwa Seob Song , Ji Sung Kim , Joo Ho Choi , Jae Wook Lee
IPC分类号： H02J7/00 , H02J7/14 , G01R31/392 , H01M10/42 , H01M10/48 , G01R31/3835 , H01M10/44 , H01M10/0525
摘要： Provided is a battery lifetime estimating method including steps of: fully charging a battery according to a predetermined charging condition; partially discharging the fully charged battery according to a predetermined discharging condition; acquiring voltage information at a plurality of predetermined measurement time points while performing the partially discharging; and estimating a remaining capacity of the battery by using the acquired voltage information. Herein, the step of estimating the remaining capacity of the battery includes steps of: calculating the capacity of the battery in one cycle of fully charging/discharging in which the measurement is performed from the measured voltage drop amounts; and estimating the remaining lifetime of the battery by applying a statistical technique to the capacity of the battery calculated with respect to a plurality of cycles of fully charging/discharging.
-
-
-
搜索结果
4 条记录 (耗时 0.014 秒)
