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).

  • Publication number: 20250025585
    Abstract: 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: Application
    Filed: October 3, 2024
    Publication date: January 23, 2025
    Inventors: Jiong CAI, Yi LIU, Dalin GAO, Xu SONG, Kai XIAO, Chen LIANG, Guozhong DING, Mingxia LIU
  • Patent number: 12095357
    Abstract: 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: Grant
    Filed: October 26, 2022
    Date of Patent: September 17, 2024
    Assignee: GINLONG TECHNOLOGIES CO., LTD.
    Inventors: Yiming Wang, Po Xu, Wenping Zhang, Wanshuang Lin, Kun Xia, Xu Cai
  • Patent number: 12095268
    Abstract: 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: Grant
    Filed: January 20, 2023
    Date of Patent: September 17, 2024
    Assignees: SHANGHAI JIAO TONG UNIVERSITY, SHENZHEN HOPEWIND ELECTRIC CO., LTD
    Inventors: Xu Cai, Xiqi Wu, Dangsheng Zhou, Rui Li, Chang Liu, Xiao Huang, Yihang Lyu, Zihao Hu
  • Publication number: 20240263983
    Abstract: 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: Application
    Filed: May 2, 2023
    Publication date: August 8, 2024
    Inventors: Chih-Ang CHUNG, Chun-Hung WENG, Wei-Xu CAI, Han-Xiang LI
  • Publication number: 20240266946
    Abstract: 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: Application
    Filed: October 26, 2022
    Publication date: August 8, 2024
    Inventors: Yiming WANG, Po XU, Wenping ZHANG, Wanshuang LIN, Kun XIA, Xu CAI
  • Patent number: 11922479
    Abstract: 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: Grant
    Filed: January 25, 2021
    Date of Patent: March 5, 2024
    Inventor: Lili Xu Cai
  • Publication number: 20230396065
    Abstract: 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: Application
    Filed: February 19, 2021
    Publication date: December 7, 2023
    Inventors: Jianwen ZHANG, Xin FENG, Gang SHI, Jianqiao ZHOU, Yuhui HUANG, Xu CAI, Zhijian JIN
  • Publication number: 20230238803
    Abstract: 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: Application
    Filed: January 20, 2023
    Publication date: July 27, 2023
    Applicants: SHANGHAI JIAO TONG UNIVERSITY, SHENZHEN HOPEWIND ELECTRIC CO., LTD
    Inventors: Xu CAI, Xiqi WU, Dangsheng ZHOU, Rui LI, Chang LIU, Xiao HUANG, Yihang LYU, Zihao HU
  • Patent number: 11677334
    Abstract: 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: Grant
    Filed: January 12, 2021
    Date of Patent: June 13, 2023
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Xu Cai, Han Wang, Jianwen Zhang, Gang Shi, Jing Lv, Yunfeng Cao, Haoshu Shao, Yao Qin, Wei Lv
  • Publication number: 20230100195
    Abstract: 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: Application
    Filed: September 27, 2022
    Publication date: March 30, 2023
    Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
    Inventors: Jian ZHANG, Xu CAI
  • Patent number: 11551317
    Abstract: 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: Grant
    Filed: March 3, 2020
    Date of Patent: January 10, 2023
    Assignee: S&P Global Inc.
    Inventors: Hyunyoung Choi, Hao Yan, Xu Cai, Qiuhao Zhang, Dun Wang, Hao Jiang
  • Patent number: 11545833
    Abstract: 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: Grant
    Filed: August 14, 2020
    Date of Patent: January 3, 2023
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Xu Cai, Chang Liu, Rui Li, Yunfeng Cao, Xiaolong Cai, Tao Liu
  • Patent number: 11431263
    Abstract: 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: Grant
    Filed: February 9, 2022
    Date of Patent: August 30, 2022
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jianwen Zhang, Yixin Zhang, Weixin Fang, Jianqiao Zhou, Gang Shi, Xu Cai, Jiacheng Wang
  • Publication number: 20220271685
    Abstract: 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: Application
    Filed: January 12, 2021
    Publication date: August 25, 2022
    Inventors: Xu CAI, Han WANG, Jianwen ZHANG, Gang SHI, Jing LV, Yunfeng CAO, Haoshu SHAO, Yao QIN, Wei LV
  • Publication number: 20220237681
    Abstract: 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: Application
    Filed: January 25, 2021
    Publication date: July 28, 2022
    Inventors: Lili Xu Cai, Valentin Alexander Skoutnev, Emily Edwards Kearney, Antoine Petit
  • Publication number: 20220166343
    Abstract: 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: Application
    Filed: February 9, 2022
    Publication date: May 26, 2022
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jianwen ZHANG, Yixin ZHANG, Weixin FANG, Jianqiao ZHOU, Gang SHI, Xu CAI, Jiacheng WANG
  • Publication number: 20220045510
    Abstract: 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: Application
    Filed: August 14, 2020
    Publication date: February 10, 2022
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Xu CAI, Chang LIU, Rui LI, Yunfeng CAO, Xiaolong CAI, Tao LIU
  • Patent number: 11133752
    Abstract: 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: Grant
    Filed: March 10, 2021
    Date of Patent: September 28, 2021
    Assignee: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jianwen Zhang, Weixin Fang, Jianqiao Zhou, Gang Shi, Han Wang, Xu Cai
  • Publication number: 20210279824
    Abstract: 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: Application
    Filed: March 3, 2020
    Publication date: September 9, 2021
    Inventors: Hyunyoung Choi, Hao Yan, Xu Cai, Qiuhao Zhang, Dun Wang, Hao Jiang
  • Publication number: 20210203247
    Abstract: 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: Application
    Filed: March 10, 2021
    Publication date: July 1, 2021
    Applicant: SHANGHAI JIAO TONG UNIVERSITY
    Inventors: Jianwen ZHANG, Weixin FANG, Jianqiao ZHOU, Gang SHI, Han WANG, Xu CAI