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公开(公告)号：US20210257632A1
公开(公告)日：2021-08-19
申请号：US16994736
申请日：2020-08-17
发明人： Jung Tak Kang , Yong Doo Son , Jun Seok Seo
IPC分类号： H01M8/04007 , H01M8/04029
摘要： A fuel cell cooling system and a control method are provided. The fuel cell cooling system includes a fuel cell module having a fuel cell stack and a first cooling water line through which primary cooling water undergoing heat exchange with the fuel cell stack to adjust a temperature of the fuel cell stack circulates. A cooling module includes a second cooling water line through which secondary cooling water circulates and a cooling tower is configured to adjust a temperature of the secondary cooling water. A heat exchanger is connected between the first cooling water line of the fuel cell module and the second cooling water line of the cooling module for heat exchange. A controller configured to operate the fuel cell module and the cooling module.
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公开(公告)号：US11616241B2
公开(公告)日：2023-03-28
申请号：US16994736
申请日：2020-08-17
发明人： Jung Tak Kang , Yong Doo Son , Jun Seok Seo
IPC分类号： H01M8/04007 , H01M8/04029
摘要： A fuel cell cooling system and a control method are provided. The fuel cell cooling system includes a fuel cell module having a fuel cell stack and a first cooling water line through which primary cooling water undergoing heat exchange with the fuel cell stack to adjust a temperature of the fuel cell stack circulates. A cooling module includes a second cooling water line through which secondary cooling water circulates and a cooling tower is configured to adjust a temperature of the secondary cooling water. A heat exchanger is connected between the first cooling water line of the fuel cell module and the second cooling water line of the cooling module for heat exchange. A controller configured to operate the fuel cell module and the cooling module.
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公开(公告)号：US11515551B2
公开(公告)日：2022-11-29
申请号：US16663709
申请日：2019-10-25
发明人： Hyun Bae Dong , Won Jung Kim , Yong Doo Son
IPC分类号： H01M8/04 , H01M8/04858 , H01M8/04537 , H01M8/04992 , H01M8/04082 , H01M8/04746
摘要： A fuel cell recovery control system and method are provided to supply hydrogen to the cathode of a fuel cell stack to remove an oxide film formed on a platinum surface of the cathode. The performance of the fuel cell stack is recovered in accordance with the oxide film removal. In addition, electric power generated during the performance recovery of the fuel cell stack is consumed in an inverter and, as such, overcharge of a battery is prevented.
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公开(公告)号：US20200343572A1
公开(公告)日：2020-10-29
申请号：US16564482
申请日：2019-09-09
发明人： Jun Seok Seo , Yong Doo Son
IPC分类号： H01M8/249 , H01M8/2428
摘要： A fuel cell system for enabling maintenance of a stack module without stopping operation thereof, and a method of replacing a stack module of the fuel cell system are provided. The fuel cell system includes a plurality of stack modules that are connected in parallel to a hydrogen line and an air line. Two or more of the stack modules are connected to form a group, and an inverter is connected to the group of the stack modules and is capable of being turned on and off.
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公开(公告)号：US20210184597A1
公开(公告)日：2021-06-17
申请号：US16876810
申请日：2020-05-18
发明人： Yong Doo Son
IPC分类号： H02M7/5387 , H01M8/04537 , H01M8/04664 , H01M8/04858 , H02M1/12
摘要： Disclosed are a grid-connected power conversion system and a control method thereof. The grid-connected power conversion system includes a fuel cell stack generating a DC voltage, a power conversion system (PCS) converting the DC voltage supplied from the stack into an AC voltage, a multi-input transformer including a primary coil having a plurality of voltage input terminals and a secondary coil transforming a magnitude of the voltage applied to the primary coil and outputting the transformed voltage, the plurality of voltage input terminals determining the number of turns of the primary coil differently from each other, one of the plurality of voltage input terminals receiving the AC voltage converted in the PCS, and a controller selecting the one of the plurality of voltage input terminals of the multi-input transformer based on the magnitude of the DC voltage generated from the stack and determining whether to replace the stack.
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公开(公告)号：US11742778B2
公开(公告)日：2023-08-29
申请号：US16876810
申请日：2020-05-18
发明人： Yong Doo Son
IPC分类号： H02M7/5387 , H01M8/04537 , H01M8/04664 , H02M1/12 , H01M8/04858
CPC分类号： H02M7/5387 , H01M8/04559 , H01M8/04567 , H01M8/04679 , H01M8/04888 , H02M1/12 , H01M2250/10
摘要： Disclosed are a grid-connected power conversion system and a control method thereof. The grid-connected power conversion system includes a fuel cell stack generating a DC voltage, a power conversion system (PCS) converting the DC voltage supplied from the stack into an AC voltage, a multi-input transformer including a primary coil having a plurality of voltage input terminals and a secondary coil transforming a magnitude of the voltage applied to the primary coil and outputting the transformed voltage, the plurality of voltage input terminals determining the number of turns of the primary coil differently from each other, one of the plurality of voltage input terminals receiving the AC voltage converted in the PCS, and a controller selecting the one of the plurality of voltage input terminals of the multi-input transformer based on the magnitude of the DC voltage generated from the stack and determining whether to replace the stack.
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公开(公告)号：US11088385B2
公开(公告)日：2021-08-10
申请号：US16564482
申请日：2019-09-09
发明人： Jun Seok Seo , Yong Doo Son
IPC分类号： H01M8/249 , H01M8/2428
摘要： A fuel cell system for enabling maintenance of a stack module without stopping operation thereof, and a method of replacing a stack module of the fuel cell system are provided. The fuel cell system includes a plurality of stack modules that are connected in parallel to a hydrogen line and an air line. Two or more of the stack modules are connected to form a group, and an inverter is connected to the group of the stack modules and is capable of being turned on and off.
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公开(公告)号：US20200381756A1
公开(公告)日：2020-12-03
申请号：US16663709
申请日：2019-10-25
发明人： Hyun Bae Dong , Won Jung Kim , Yong Doo Son
IPC分类号： H01M8/04858 , H01M8/04537 , H01M8/04746 , H01M8/04082 , H01M8/04992
摘要： A fuel cell recovery control system and method are provided to supply hydrogen to the cathode of a fuel cell stack to remove an oxide film formed on a platinum surface of the cathode. The performance of the fuel cell stack is recovered in accordance with the oxide film removal. In addition, electric power generated during the performance recovery of the fuel cell stack is consumed in an inverter and, as such, overcharge of a battery is prevented.
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公开(公告)号：US20230261225A1
公开(公告)日：2023-08-17
申请号：US18049728
申请日：2022-10-26
发明人： Yong Doo Son
IPC分类号： H01M8/04664 , H01M8/04858 , H01M8/04537 , H02H1/00 , H02H7/18
CPC分类号： H01M8/04671 , H01M8/04873 , H01M8/04552 , H01M8/04917 , H01M8/04902 , H02H1/0007 , H02H7/18
摘要： An apparatus for converting power of a fuel cell for power generation to remove an open voltage of the fuel cell when a failure occurs during power generation of the fuel cell and a method thereof are provided. A power converter converts and supplies power generated by the fuel cell to a system or load. A controller detects a failure occurring in the fuel cell, the power converter, or the system or load, while the fuel cell is driven, and reduces an open circuit voltage (OCV) of the fuel cell by a dummy resistor connected with an output terminal of the fuel cell, when the failure occurs in the fuel cell, the power converter, or the system or load. The apparatus removes an OCV of a fuel cell stack to prevent performance and life of the fuel cell from being reduced.
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公开(公告)号：US20240117930A1
公开(公告)日：2024-04-11
申请号：US18119914
申请日：2023-03-10
发明人： Ji Hye Park , Won Jung Kim , Kyung Moon Lee , Dong Hoon Nam , Young Jin Cho , Byeong Soo Shin , Ji Hoon Lee , Suk Hoon Hong , Hoon Mo Park , Yong Doo Son
IPC分类号： F17C1/00
CPC分类号： F17C1/00 , F17C2203/0636 , F17C2221/012 , F17C2223/0138
摘要： A hydrogen storage device includes a storage container having an accommodation space in an interior thereof, a first metal hydride material provided in the interior of the storage container and that stores hydrogen, and a second metal hydride material provided in the interior of the storage container and that stores the hydrogen at a pressure that is different from that of the first metal hydride material. An advantageous effect of restraining an excessive rise of a pressure of the storage container and enhancing safety and reliability may be obtained.
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