Patents by Inventor Xu Cai
Xu Cai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250025585Abstract: The present disclosure relates to the fields of radiopharmaceuticals and nuclear medicine and provides a precursor composition of HER2 affibody, comprising: HEPES, sodium glucoheptonate, stannons chloride and an HER2 affibody, wherein the composition is free of vitamin C and cysteine, and the composition is a lyophilized powder.Type: ApplicationFiled: October 3, 2024Publication date: January 23, 2025Inventors: Jiong CAI, Yi LIU, Dalin GAO, Xu SONG, Kai XIAO, Chen LIANG, Guozhong DING, Mingxia LIU
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Patent number: 12095357Abstract: The present disclosure discloses a T-shaped three-level overload operating system, including a three-level topology and an overload mode switching system. The topology is connected with a first device group and a second device group which form a T shape; the first device group is designed with an overload capacity, and the second device group is designed with a rated capacity; and the overload mode switching system is configured for being connected to the topology to control the first device group to perform overload two-level operation on the topology, or to control the second device group to perform normal three-level operation on the topology, so that the number of device groups of the overload design can be effectively reduced, and then the cost of the system can be reduced. A working method of the T-shaped three-level overload operating system is further disclosed. The topology can be rapidly switched among working modes according to an output current of the topology.Type: GrantFiled: October 26, 2022Date of Patent: September 17, 2024Assignee: GINLONG TECHNOLOGIES CO., LTD.Inventors: Yiming Wang, Po Xu, Wenping Zhang, Wanshuang Lin, Kun Xia, Xu Cai
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Patent number: 12095268Abstract: A directly-connected high-voltage battery energy storage system (BESS) and a control method thereof are provided. The directly-connected high-voltage BESS includes a battery module, a direct current (DC)/DC converter, a DC bus capacitor, a DC/alternating current (AC) converter, and a grid-side filter inductor. A plurality of battery modules is connected in series to form a battery cluster. The battery cluster is connected in series to the DC/DC converter to form a battery branch, and a plurality of battery branches is connected in parallel to form a battery stack. The battery stack is connected in parallel to the DC bus capacitor and then connected to a DC port of the DC/AC converter to form a battery energy storage submodule. AC ports of a plurality of battery energy storage submodules are connected in series to form a chain-type phase converter.Type: GrantFiled: January 20, 2023Date of Patent: September 17, 2024Assignees: SHANGHAI JIAO TONG UNIVERSITY, SHENZHEN HOPEWIND ELECTRIC CO., LTDInventors: Xu Cai, Xiqi Wu, Dangsheng Zhou, Rui Li, Chang Liu, Xiao Huang, Yihang Lyu, Zihao Hu
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Publication number: 20240263983Abstract: A method of measuring physical properties includes a number of operations. Simulated mass flow rate data of training physical property parameter sets are generated by a computing unit based on the training physical property parameter sets and vessel shape information. Deep learning model is trained by a processor based on a training data set with an input feature vector of the simulated mass flow rate data and an output feature vector of the training physical property parameter sets. Measured fluid is received by a loader through an opening of a vessel of the vessel shape information. Weight accumulation data of weight of the loader is measured by a scale during a time period to obtain measured mass flow rate data. The measured mass flow rate data is inputted to the deep learning model to obtain measured physical property parameter set of the measured fluid.Type: ApplicationFiled: May 2, 2023Publication date: August 8, 2024Inventors: Chih-Ang CHUNG, Chun-Hung WENG, Wei-Xu CAI, Han-Xiang LI
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Publication number: 20240266946Abstract: The present disclosure discloses a T-shaped three-level overload operating system, including a three-level topology and an overload mode switching system. The topology is connected with a first device group and a second device group which form a T shape; the first device group is designed with an overload capacity, and the second device group is designed with a rated capacity; and the overload mode switching system is configured for being connected to the topology to control the first device group to perform overload two-level operation on the topology, or to control the second device group to perform normal three-level operation on the topology, so that the number of device groups of the overload design can be effectively reduced, and then the cost of the system can be reduced. A working method of the T-shaped three-level overload operating system is further disclosed. The topology can be rapidly switched among working modes according to an output current of the topology.Type: ApplicationFiled: October 26, 2022Publication date: August 8, 2024Inventors: Yiming WANG, Po XU, Wenping ZHANG, Wanshuang LIN, Kun XIA, Xu CAI
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Patent number: 11922479Abstract: Artificial intelligence (AI) assisted technology for grocery recommendations and nutrient optimization includes an intuitive application (app) that can use AI to improve grocery recommendations during grocery shopping to optimize nutrition and encourage users to purchase foods that can help the user receive more complete nutrition. Automatically capturing nutritional information while grocery shopping can assist users seeking to improve their health because it operates while users are performing their grocery shopping, when users have the best opportunity to shape the foods that will be available to them to consume. Nutritional optimization while grocery shopping can improve the use of resources including time and money (due to the cost of food) because it can provide suggestions to address nutritional opportunities that represent nutritional surpluses and nutritional opportunities that represent nutritional deficits.Type: GrantFiled: January 25, 2021Date of Patent: March 5, 2024Inventor: Lili Xu Cai
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Publication number: 20230396065Abstract: The invention discloses a multi-port flexible AC interconnection device with active power flow control capability for an AC power grid, including a static synchronous compensator and a multi-port flexible interconnection module connected in series. The multi-port flexible interconnection module includes multiple voltage-source single-phase inverters sharing a DC bus, and each port is connected to a different AC power grid feeder line. By adjusting the amplitude and phase of the AC output voltage of the single-phase inverters connected in series on the feeder line, flexible interaction of active power between the feeder lines is realized, and decoupled control of active and reactive power on the feeder lines is achieved. By introducing the multi-port flexible interconnection module, the invention provides multiple controllable AC ports connected to multiple feeder lines, realizing flexible interconnection between the feeder lines, i.e.Type: ApplicationFiled: February 19, 2021Publication date: December 7, 2023Inventors: Jianwen ZHANG, Xin FENG, Gang SHI, Jianqiao ZHOU, Yuhui HUANG, Xu CAI, Zhijian JIN
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Publication number: 20230238803Abstract: A directly-connected high-voltage battery energy storage system (BESS) and a control method thereof are provided. The directly-connected high-voltage BESS includes a battery module, a direct current (DC)/DC converter, a DC bus capacitor, a DC/alternating current (AC) converter, and a grid-side filter inductor. A plurality of battery modules is connected in series to form a battery cluster. The battery cluster is connected in series to the DC/DC converter to form a battery branch, and a plurality of battery branches is connected in parallel to form a battery stack. The battery stack is connected in parallel to the DC bus capacitor and then connected to a DC port of the DC/AC converter to form a battery energy storage submodule. AC ports of a plurality of battery energy storage submodules are connected in series to form a chain-type phase converter.Type: ApplicationFiled: January 20, 2023Publication date: July 27, 2023Applicants: SHANGHAI JIAO TONG UNIVERSITY, SHENZHEN HOPEWIND ELECTRIC CO., LTDInventors: Xu CAI, Xiqi WU, Dangsheng ZHOU, Rui LI, Chang LIU, Xiao HUANG, Yihang LYU, Zihao HU
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Patent number: 11677334Abstract: The present invention discloses a modular intelligent combined wind power converter and a control method thereof. The modular intelligent combined wind power converter comprises separate bridge arm power units, wherein a plurality of the bridge arm power units are connected in parallel to form a high-capacity bridge arm power module, three bridge arm power modules form a three-phase full-controlled bridge power module, and the three-phase full-controlled bridge power module comprises an electric reactor, a capacitor, a fuse and a circuit breaker to form a basic converter module, and the basic converter module forms a high-capacity wind power converter through a modular intelligent combination method.Type: GrantFiled: January 12, 2021Date of Patent: June 13, 2023Assignee: SHANGHAI JIAO TONG UNIVERSITYInventors: Xu Cai, Han Wang, Jianwen Zhang, Gang Shi, Jing Lv, Yunfeng Cao, Haoshu Shao, Yao Qin, Wei Lv
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Publication number: 20230100195Abstract: One or more embodiments of the present disclosure are directed to a transmission mechanism. The transmission mechanism may include a guiding rail, and a slider movably disposed on the guiding rail, wherein the slider may be provided with a rolling part, the rolling part may roll with respect to the guiding rail, and limit the slider in a first direction and a second direction of the guiding rail, and the first direction and the second direction may both be perpendicular to a length direction of the guiding rail, and an angle between the first direction and the second direction may be greater than 0° and less than 180°.Type: ApplicationFiled: September 27, 2022Publication date: March 30, 2023Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.Inventors: Jian ZHANG, Xu CAI
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Patent number: 11551317Abstract: Automated property value calculation is provided. The method comprises receiving historic transaction data for a group of real estate properties over a specified time and receiving characteristic data regarding the properties for a number of defined categories. Historic data is also received for a number of demographic parameters over the specified time. The demographic data corresponds to regions in which the properties are located. A predictive valuation model is built with the financial transaction data, characteristic data, and demographic data. Individual values are calculated with the predictive valuation model for a new group of real estate properties according to their characteristics. The individual values are then aggregated. Financial transaction data is received for the new group of properties, and a net asset value of the new group of properties is calculated according to the aggregated valuations and financial transaction data.Type: GrantFiled: March 3, 2020Date of Patent: January 10, 2023Assignee: S&P Global Inc.Inventors: Hyunyoung Choi, Hao Yan, Xu Cai, Qiuhao Zhang, Dun Wang, Hao Jiang
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Patent number: 11545833Abstract: A high-voltage hierarchy hundred-megawatt level (100 MW) battery energy storage system and optimizing and control methods are provided. The system includes a multi-phase structure, of which each phase is divided into multi-story spaces from top to bottom. A battery module is provided in each story of the multi-story spaces. The battery module is connected to a DC terminal of an H-bridge converter, and each phase is cascaded by the H-bridge converter. A capacity of the single-phase energy storage apparatus of the present invention is large, and multiple phases can be connected in parallel to form a 100 MW battery energy storage power station. The power station has the advantages of simple structure, easy coordinated control, low control loop model and coupling, and optimal system stability. The control system of the present invention has fewer hierarchies, a small information transmission delay, and a rapid response speed.Type: GrantFiled: August 14, 2020Date of Patent: January 3, 2023Assignee: SHANGHAI JIAO TONG UNIVERSITYInventors: Xu Cai, Chang Liu, Rui Li, Yunfeng Cao, Xiaolong Cai, Tao Liu
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Patent number: 11431263Abstract: Disclosed is a solid-state transformer having an uninterrupted operation ability under an AC/DC fault, in which bridge arms of a hybrid modular multilevel converter include half-bridge submodules and full-bridge submodules. The half-bridge submodules and the full-bridge submodules are connected with input ends of isolated dual-active-bridge converters via DC capacitors of the half-bridge submodules and full-bridge submodules; output ends of the isolated dual-active-bridge converters are connected in parallel to form a low-voltage DC bus; and a three-phase full-bridge inverter is connected to the low-voltage DC bus. The solid-state transformer may be provided with four ports including a medium-voltage AC port, a medium-voltage DC port, a low-voltage DC port and a low-voltage AC port which are beneficial to the interconnection of multi-voltage-level and multi-form AC/DC hybrid distribution grids. The solid-state transformer has the uninterrupted operation ability under the AC/DC fault.Type: GrantFiled: February 9, 2022Date of Patent: August 30, 2022Assignee: SHANGHAI JIAO TONG UNIVERSITYInventors: Jianwen Zhang, Yixin Zhang, Weixin Fang, Jianqiao Zhou, Gang Shi, Xu Cai, Jiacheng Wang
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Publication number: 20220271685Abstract: The present invention discloses a modular intelligent combined wind power converter and a control method thereof. The modular intelligent combined wind power converter comprises separate bridge arm power units, wherein a plurality of the bridge arm power units are connected in parallel to form a high-capacity bridge arm power module, three bridge arm power modules form a three-phase full-controlled bridge power module, and the three-phase full-controlled bridge power module comprises an electric reactor, a capacitor, a fuse and a circuit breaker to form a basic converter module, and the basic converter module forms a high-capacity wind power converter through a modular intelligent combination method.Type: ApplicationFiled: January 12, 2021Publication date: August 25, 2022Inventors: Xu CAI, Han WANG, Jianwen ZHANG, Gang SHI, Jing LV, Yunfeng CAO, Haoshu SHAO, Yao QIN, Wei LV
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Publication number: 20220237681Abstract: Artificial intelligence (AI) assisted technology for grocery recommendations and nutrient optimization includes an intuitive application (app) that can use AI to improve grocery recommendations during grocery shopping to optimize nutrition and encourage users to purchase foods that can help the user receive more complete nutrition. Automatically capturing nutritional information while grocery shopping can assist users seeking to improve their health because it operates while users are performing their grocery shopping, when users have the best opportunity to shape the foods that will be available to them to consume. Nutritional optimization while grocery shopping can improve the use of resources including time and money (due to the cost of food) because it can provide suggestions to address nutritional opportunities that represent nutritional surpluses and nutritional opportunities that represent nutritional deficits.Type: ApplicationFiled: January 25, 2021Publication date: July 28, 2022Inventors: Lili Xu Cai, Valentin Alexander Skoutnev, Emily Edwards Kearney, Antoine Petit
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Publication number: 20220166343Abstract: In a solid-state transformer having an uninterrupted operation ability under an AC/DC fault, bridge arms of a hybrid modular multilevel converter comprise half-bridge submodules and full-bridge submodules, the half-bridge submodules and the full-bridge submodules are interconnected with input ends of the isolated dual-active-bridge converters via DC capacitors of the submodules, output ends of the plurality of isolated dual-active-bridge converters are connected in parallel to form a low-voltage DC bus, and the three-phase full-bridge inverter is connected to the low-voltage DC bus. The solid-state transformer provided by the present invention may be provided with four ports including a medium-voltage AC port, a medium-voltage DC port, a low-voltage DC port and a low-voltage AC port which are beneficial to the interconnection of multi-voltage-grade and multi-form AC/DC hybrid distribution grids; and the solid-state transformer has the uninterrupted operation ability under the AC/DC fault.Type: ApplicationFiled: February 9, 2022Publication date: May 26, 2022Applicant: SHANGHAI JIAO TONG UNIVERSITYInventors: Jianwen ZHANG, Yixin ZHANG, Weixin FANG, Jianqiao ZHOU, Gang SHI, Xu CAI, Jiacheng WANG
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Publication number: 20220045510Abstract: A high-voltage hierarchy hundred-megawatt level (100 MW) battery energy storage system and optimizing and control methods are provided. The system includes a multi-phase structure, of which each phase is divided into multi-story spaces from top to bottom. A battery module is provided in each story of the multi-story spaces. The battery module is connected to a DC terminal of an H-bridge converter, and each phase is cascaded by the H-bridge converter. A capacity of the single-phase energy storage apparatus of the present invention is large, and multiple phases can be connected in parallel to form a 100 MW battery energy storage power station. The power station has the advantages of simple structure, easy coordinated control, low control loop model and coupling, and optimal system stability. The control system of the present invention has fewer hierarchies, a small information transmission delay, and a rapid response speed.Type: ApplicationFiled: August 14, 2020Publication date: February 10, 2022Applicant: SHANGHAI JIAO TONG UNIVERSITYInventors: Xu CAI, Chang LIU, Rui LI, Yunfeng CAO, Xiaolong CAI, Tao LIU
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Patent number: 11133752Abstract: A modular multilevel converter with multi-port DC power flow control includes a modular multilevel converter topology and a DC power flow controller, wherein an input terminal of the DC power flow controller is connected in series to uppermost submodules of upper arms of the modular multilevel converter topology, and with power transfer and energy interaction between the modular multilevel converter topology and an AC power grid, a converter station or a solid state transformer based on the modular multilevel converter topology has a function of direct current power flow control. The output terminal of the DC power flow controller adopts DC/DC converters to regulate the output voltage, and a plurality of DC/DC converters share a common DC bus with the ports connected with different DC outlet lines, thereby providing a plurality of flexible and controllable DC ports.Type: GrantFiled: March 10, 2021Date of Patent: September 28, 2021Assignee: SHANGHAI JIAO TONG UNIVERSITYInventors: Jianwen Zhang, Weixin Fang, Jianqiao Zhou, Gang Shi, Han Wang, Xu Cai
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Publication number: 20210279824Abstract: Automated property value calculation is provided. The method comprises receiving historic transaction data for a group of real estate properties over a specified time and receiving characteristic data regarding the properties for a number of defined categories. Historic data is also received for a number of demographic parameters over the specified time. The demographic data corresponds to regions in which the properties are located. A predictive valuation model is built with the financial transaction data, characteristic data, and demographic data. Individual values are calculated with the predictive valuation model for a new group of real estate properties according to their characteristics. The individual values are then aggregated. Financial transaction data is received for the new group of properties, and a net asset value of the new group of properties is calculated according to the aggregated valuations and financial transaction data.Type: ApplicationFiled: March 3, 2020Publication date: September 9, 2021Inventors: Hyunyoung Choi, Hao Yan, Xu Cai, Qiuhao Zhang, Dun Wang, Hao Jiang
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Publication number: 20210203247Abstract: A modular multilevel converter with multi-port DC power flow control includes a modular multilevel converter topology and a DC power flow controller, wherein an input terminal of the DC power flow controller is connected in series to uppermost submodules of upper arms of the modular multilevel converter topology, and with power transfer and energy interaction between the modular multilevel converter topology and an AC power grid, a converter station or a solid state transformer based on the modular multilevel converter topology has a function of direct current power flow control. The output terminal of the DC power flow controller adopts DC/DC converters to regulate the output voltage, and a plurality of DC/DC converters share a common DC bus with the ports connected with different DC outlet lines, thereby providing a plurality of flexible and controllable DC ports.Type: ApplicationFiled: March 10, 2021Publication date: July 1, 2021Applicant: SHANGHAI JIAO TONG UNIVERSITYInventors: Jianwen ZHANG, Weixin FANG, Jianqiao ZHOU, Gang SHI, Han WANG, Xu CAI