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1.发明公开公开(公告)号：US20240120759A1
公开(公告)日：2024-04-11
申请号：US17937209
申请日：2022-09-30
发明人： Manoj Mathew , Steve Miller , Stefan Janhunen , Nate Wennyk
CPC分类号： H02J7/00712 , H01M10/4257 , H01M10/482 , H02J7/0048 , H01M2010/4271 , H01M2010/4278
摘要： Systems, methods, and devices are provided for executing cell balancing in an energy storage system. The systems, methods, and devices may comprise an imbalance estimation system and a balancing execution system. The imbalance estimation system may be configured to receive, and to determine an estimated cell imbalance and imbalance estimation uncertainty of the energy storage. The estimated cell imbalance of the energy storage may be based on a voltage input, V, representing a measured voltage associated with the energy storage device, and a probabilistic battery model associated with the energy storage device. The balancing estimation system may comprise a balancing circuit, the balancing execution system configured to partially discharge a cell via the balancing circuit based on the estimated cell imbalance of the energy storage device.
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公开(公告)号：US11906589B2
公开(公告)日：2024-02-20
申请号：US17812843
申请日：2022-07-15
发明人： Michael Worry , Stefan Janhunen , Manoj Mathew
IPC分类号： G01R31/382 , H02J7/00 , G06N7/01 , G01R31/396 , G01R31/367
CPC分类号： G01R31/382 , G01R31/367 , G01R31/396 , G06N7/01 , H02J7/0048
摘要： Systems, methods, and devices are provided for estimating a state-of-charge in an energy storage system. The systems, methods, and devices may measure a current and a voltage related to the energy storage system, generate a model-based state-of-charge estimate based thereon, generate an aggregated state-of-charge estimate based on the model-based state-of-charge estimate, generate an adaptation current based on the measured current, aggregated state-of-charge estimate, and the adaptive state-of-charge estimate, and update the adaptive state-of-charge estimate based on the measured current and the adaptation current. The systems, methods, and devices may also provide a tracking indication whether the adaptive state-of-charge estimate is tracking between upper and lower confidence limits.
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公开(公告)号：US11422195B2
公开(公告)日：2022-08-23
申请号：US16828740
申请日：2020-03-24
发明人： Michael Worry , Stefan Janhunen , Manoj Mathew
IPC分类号： G01R31/382 , G06N7/00 , H02J7/00 , G01R31/396 , G01R31/367
摘要： Systems, methods, and devices are provided for estimating a state-of-charge in an energy storage system. The systems, methods, and devices may measure a current and a voltage related to the energy storage system, generate a model-based state-of-charge estimate based thereon, generate an aggregated state-of-charge estimate based on the model-based state-of-charge estimate, generate an adaptation current based on the measured current, aggregated state-of-charge estimate, and the adaptive state-of-charge estimate, and update the adaptive state-of-charge estimate based on the measured current and the adaptation current. The systems, methods, and devices may also provide a tracking indication whether the adaptive state-of-charge estimate is tracking between upper and lower confidence limits.
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4.发明公开公开(公告)号：US20240142526A1
公开(公告)日：2024-05-02
申请号：US18394808
申请日：2023-12-22
发明人： Michael Worry , Stefan Janhunen , Manoj Mathew
IPC分类号： G01R31/382 , G01R31/367 , G01R31/396 , G06N7/01 , H02J7/00
CPC分类号： G01R31/382 , G01R31/367 , G01R31/396 , G06N7/01 , H02J7/0048
摘要： Systems, methods, and devices are provided for estimating a state-of-charge in an energy storage system. The systems, methods, and devices may measure a current and a voltage related to the energy storage system, generate a model-based state-of-charge estimate based thereon, generate an aggregated state-of-charge estimate based on the model-based state-of-charge estimate, generate an adaptation current based on the measured current, aggregated state-of-charge estimate, and the adaptive state-of-charge estimate, and update the adaptive state-of-charge estimate based on the measured current and the adaptation current. The systems, methods, and devices may also provide a tracking indication whether the adaptive state-of-charge estimate is tracking between upper and lower confidence limits.
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公开(公告)号：US20240044996A1
公开(公告)日：2024-02-08
申请号：US18485078
申请日：2023-10-11
发明人： Michael Worry , Stefan Janhunen , Manoj Mathew
IPC分类号： G01R31/392 , H02J7/00 , G01R31/396 , G01R31/374 , G01R31/3842
CPC分类号： G01R31/392 , H02J7/005 , G01R31/396 , G01R31/374 , G01R31/3842
摘要： Systems, methods, and devices are provided for estimating a state-of-health (SOH) in an energy storage system, where the estimate accounts for both power fade and capacity fade. The SOH estimation system comprises a SOH estimation module configured to receive, and to determine the estimate of the SOH based on: a nominal capacity input; a voltage input; a current input; a nominal open circuit voltage curve; an operational resistance model; a nominal resistance model; an operational dynamic model; and a rated discharge current. The SOH estimation module may further comprise a SOH aggregation module configured to receive a power rating estimate, PRn, and a normalized capacity estimate, NCn, and may be configured to determine the estimate of the SOH based on the power rating estimate, PRn, and the normalized capacity estimate, NCn.
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公开(公告)号：US11821958B2
公开(公告)日：2023-11-21
申请号：US17584750
申请日：2022-01-26
发明人： Michael Worry , Stefan Janhunen , Manoj Mathew
IPC分类号： G01R31/392 , H02J7/00 , G01R31/396 , G01R31/374 , G01R31/3842
CPC分类号： G01R31/392 , G01R31/374 , G01R31/3842 , G01R31/396 , H02J7/005
摘要： Systems, methods, and devices are provided for estimating a state-of-health (SOH) in an energy storage system, where the estimate accounts for both power fade and capacity fade. The SOH estimation system comprises a SOH estimation module configured to receive, and to determine the estimate of the SOH based on: a nominal capacity input; a voltage input; a current input; a nominal open circuit voltage curve; an operational resistance model; a nominal resistance model; an operational dynamic model; and a rated discharge current. The SOH estimation module may further comprise a SOH aggregation module configured to receive a power rating estimate, PRn, and a normalized capacity estimate, NCn, and may be configured to determine the estimate of the SOH based on the power rating estimate, PRn, and the normalized capacity estimate, NCn.
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7.发明申请公开(公告)号：US20220357400A1
公开(公告)日：2022-11-10
申请号：US17812843
申请日：2022-07-15
发明人： Michael Worry , Stefan Janhunen , Manoj Mathew
IPC分类号： G01R31/382 , G06N7/00 , G01R31/396 , G01R31/367 , H02J7/00
摘要： Systems, methods, and devices are provided for estimating a state-of-charge in an energy storage system. The systems, methods, and devices may measure a current and a voltage related to the energy storage system, generate a model-based state-of-charge estimate based thereon, generate an aggregated state-of-charge estimate based on the model-based state-of-charge estimate, generate an adaptation current based on the measured current, aggregated state-of-charge estimate, and the adaptive state-of-charge estimate, and update the adaptive state-of-charge estimate based on the measured current and the adaptation current. The systems, methods, and devices may also provide a tracking indication whether the adaptive state-of-charge estimate is tracking between upper and lower confidence limits.
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