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公开(公告)号：US09897658B2
公开(公告)日：2018-02-20
申请号：US14606068
申请日：2015-01-27
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks, Jr. , Sam T. Liu , Robert A. Kaucic , Leng Mao , David E. James , Herman Lucas Norbert Wiegman , Mert Geveci
CPC classification number: G01R31/362 , G01R31/3651 , H01M10/48
Abstract: The present disclosure is directed to a system and method for controlling an energy storage device by more accurately detecting an end-of-discharge voltage of the energy storage device. More specifically, in one embodiment, the method includes determining an end-of-discharge voltage threshold for the energy storage device. Another step includes filtering the end-of-discharge voltage threshold via a filter. The method also includes adjusting a time constant of the filter based on at least one voltage-current condition. Still a further step includes comparing the filtered end-of-discharge voltage threshold and a terminal voltage of the energy storage device. Based on the comparison, the method includes determining a change of state of the energy storage device. Thus, the energy storage device can be controlled based on the change of state.
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公开(公告)号：US20160126766A1
公开(公告)日：2016-05-05
申请号：US14528013
申请日：2014-10-30
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks,, JR. , Sam T. Liu , Robert A. Kaucic , Leng Mao
IPC: H02J7/00
CPC classification number: H02J7/0009 , G01R31/3634 , H02J7/0013 , H02J7/0021 , H02J7/0022 , H02J7/0024 , H02J7/0047 , H02J7/0052 , H02J7/007 , H02J7/045 , H02J2007/005
Abstract: Systems and methods for charging a plurality of battery strings are provided. The individual string current of each of the individual battery strings can be monitored and used to regulate a charging output provided by the charger. For instance, the output voltage of charger can be controlled as part of a closed loop control system based on the individual string current of the battery string under the constraint of an individual string current limit and/or a charging voltage limit. As the charging voltage of the charger increases as a result of the closed loop control based on the individual string current, other battery strings can be coupled to the charger when the charging voltage provided by the charger exceeds a battery string voltage associated with the battery string.
Abstract translation: 提供了用于对多个电池串充电的系统和方法。 可以监视每个单独电池串的各个串电流，并用于调节由充电器提供的充电输出。 例如，充电器的输出电压可以在单独的串电流限制和/或充电电压限制的约束下，基于电池串的各个串电流被控制为闭环控制系统的一部分。 当充电器的充电电压由于基于各个串电流的闭环控制而增加时，当由充电器提供的充电电压超过与电池串相关联的电池组电压时，其它电池串可以耦合到充电器 。
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公开(公告)号：US10391878B2
公开(公告)日：2019-08-27
申请号：US14510306
申请日：2014-10-09
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks, Jr. , Sam T. Liu , Robert A. Kaucic , Leng Mao
Abstract: The present disclosure is directed to a system and method for calibrating state-of-charge (SOC) of an energy storage device. The method includes monitoring, via a battery management system, at least one of an accumulated capacity of the energy storage device after a first SOC calibration or a time period after the first SOC calibration. Another step includes determining, via the battery management system, whether at least one of the accumulated capacity or the time period is above a predetermined threshold. If at least one of the accumulated capacity or the time period is above a predetermined threshold, then the method includes charging, via the battery management system, the energy storage device for a specified duration until the energy storage device reaches a second SOC calibration.
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Patent Agency Ranking
公开(公告)号：US20160101708A1
公开(公告)日：2016-04-14
申请号：US14510306
申请日：2014-10-09
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks,, JR. , Sam T. Liu , Robert A. Kaucic , Leng Mao
CPC classification number: B60L11/1861 , B60L53/00 , B60L58/12 , H02J7/0021 , H02J7/1461 , Y02T10/7005 , Y02T10/7044 , Y02T10/705 , Y02T10/7072 , Y02T90/14
Abstract: The present disclosure is directed to a system and method for calibrating state-of-charge (SOC) of an energy storage device. The method includes monitoring, via a battery management system, at least one of an accumulated capacity of the energy storage device after a first SOC calibration or a time period after the first SOC calibration. Another step includes determining, via the battery management system, whether at least one of the accumulated capacity or the time period is above a predetermined threshold. If at least one of the accumulated capacity or the time period is above a predetermined threshold, then the method includes charging, via the battery management system, the energy storage device for a specified duration until the energy storage device reaches a second SOC calibration.
Abstract translation: 本公开涉及一种用于校准能量存储装置的充电状态（SOC）的系统和方法。 该方法包括通过电池管理系统监视第一SOC校准之后的能量存储装置的累积容量或第一SOC校准之后的时间段中的至少一个。 另一步骤包括通过电池管理系统确定累积容量或时间段中的至少一个是否高于预定阈值。 如果累积容量或时间段中的至少一个高于预定阈值，则该方法包括经由电池管理系统将能量存储装置充电达指定持续时间，直到能量存储装置达到第二次SOC校准。
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公开(公告)号：US20170222452A1
公开(公告)日：2017-08-03
申请号：US15488813
申请日：2017-04-17
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks, JR. , Sam T. Liu , Robert A. Kaucic , Leng Mao
CPC classification number: H02J7/0009 , G01R31/3634 , H02J7/0013 , H02J7/0021 , H02J7/0022 , H02J7/0024 , H02J7/0047 , H02J7/0052 , H02J7/007 , H02J7/045 , H02J2007/005
Abstract: Systems and methods for charging a plurality of battery strings are provided. The individual string current of each of the individual battery strings can be monitored and used to regulate a charging output provided by the charger. For instance, the output voltage of charger can be controlled as part of a closed loop control system based on the individual string current of the battery string under the constraint of an individual string current limit and/or a charging voltage limit. As the charging voltage of the charger increases as a result of the closed loop control based on the individual string current, other battery strings can be coupled to the charger when the charging voltage provided by the charger exceeds a battery string voltage associated with the battery string.
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公开(公告)号：US20160218400A1
公开(公告)日：2016-07-28
申请号：US14606068
申请日：2015-01-27
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks,, JR. , Sam T. Liu , Robert A. Kaucic , Leng Mao , David E. James , Herman Lucas Norbert Wiegman , Mert Geveci
CPC classification number: G01R31/362 , G01R31/3651 , H01M10/48
Abstract: The present disclosure is directed to a system and method for controlling an energy storage device by more accurately detecting an end-of-discharge voltage of the energy storage device. More specifically, in one embodiment, the method includes determining an end-of-discharge voltage threshold for the energy storage device. Another step includes filtering the end-of-discharge voltage threshold via a filter. The method also includes adjusting a time constant of the filter based on at least one voltage-current condition. Still a further step includes comparing the filtered end-of-discharge voltage threshold and a terminal voltage of the energy storage device. Based on the comparison, the method includes determining a change of state of the energy storage device. Thus, the energy storage device can be controlled based on the change of state.
Abstract translation: 本公开涉及一种用于通过更准确地检测能量存储装置的放电终止电压来控制能量存储装置的系统和方法。 更具体地，在一个实施例中，该方法包括确定能量存储装置的放电终止电压阈值。 另一步包括通过滤波器过滤放电终止电压阈值。 该方法还包括基于至少一个电压 - 电流条件调整滤波器的时间常数。 还有一个步骤包括比较滤波的放电后电压阈值和能量存储装置的端电压。 基于该比较，该方法包括确定能量存储装置的状态变化。 因此，可以基于状态的变化来控制能量存储装置。
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公开(公告)号：US10218188B2
公开(公告)日：2019-02-26
申请号：US15488813
申请日：2017-04-17
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks, Jr. , Sam T. Liu , Robert A. Kaucic , Leng Mao
Abstract: Systems and methods for charging a plurality of battery strings are provided. The individual string current of each of the individual battery strings can be monitored and used to regulate a charging output provided by the charger. For instance, the output voltage of charger can be controlled as part of a closed loop control system based on the individual string current of the battery string under the constraint of an individual string current limit and/or a charging voltage limit. As the charging voltage of the charger increases as a result of the closed loop control based on the individual string current, other battery strings can be coupled to the charger when the charging voltage provided by the charger exceeds a battery string voltage associated with the battery string.
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公开(公告)号：US09627897B2
公开(公告)日：2017-04-18
申请号：US14528013
申请日：2014-10-30
Applicant: General Electric Company
Inventor： Jiucai Zhang , Charles Clarence Hicks, Jr. , Sam T. Liu , Robert A. Kaucic , Leng Mao
CPC classification number: H02J7/0009 , G01R31/3634 , H02J7/0013 , H02J7/0021 , H02J7/0022 , H02J7/0024 , H02J7/0047 , H02J7/0052 , H02J7/007 , H02J7/045 , H02J2007/005
Abstract: Systems and methods for charging a plurality of battery strings are provided. The individual string current of each of the individual battery strings can be monitored and used to regulate a charging output provided by the charger. For instance, the output voltage of charger can be controlled as part of a closed loop control system based on the individual string current of the battery string under the constraint of an individual string current limit and/or a charging voltage limit. As the charging voltage of the charger increases as a result of the closed loop control based on the individual string current, other battery strings can be coupled to the charger when the charging voltage provided by the charger exceeds a battery string voltage associated with the battery string.
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