Patents by Inventor Xiaohua Ding
Xiaohua Ding 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: 20240097454Abstract: Disclosed are an emergency control method and system based on source-load-storage regulation and cutback. According to the method, output power of power generating sources is regulated according to a power regulating quantity and a frequency regulation requirement, an output power compensation and output frequency of each power generating source are maintained within permissible ranges, so that a balance between power supply and demand of a power distribution network is maintained; and standby energy-storage power stations are used to make up a power gap, and an external power supply system is used to assist in making up a power deficiency, so that large load disturbance can be handled make up the power gap.Type: ApplicationFiled: July 30, 2021Publication date: March 21, 2024Applicants: NANJING UNIVERSITY OF POASTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTDInventors: Dong YUE, Chunxia DOU, Zhijun ZHANG, Wenbin YUE, Xiaohua DING, Jianbo LUO, Yanman LI, Kun HUANG, Tao HAN
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Publication number: 20240069116Abstract: The invention discloses a method, a system, an electronic device, and a storage medium for determining performance of a power battery. The method includes the following steps: acquiring historical data of the power battery in at least two charging processes; determining, according to historical data in one charging process, a dQ/dV curve and a direct current internal resistance corresponding to said charging process; calculating a relative change rate of internal resistance capacity in any two charging processes; and determining the performance of the power battery according to the relative change rate of internal resistance capacity and a relative change rate of internal resistance capacity range corresponding to fault type. The invention can effectively determine whether the performance of the power battery is abnormal by combining, in the two charging processes, the target peak value of a dQ/dV curve of the power battery and the change in direct current internal resistance.Type: ApplicationFiled: August 24, 2023Publication date: February 29, 2024Inventors: Peng Ding, Yanwen Zhang, Weikun Wu, Haowen Ren, Zonglin Cai, Xiaohua Chen, Xiao Yan, Enhai Zhao, Pei Song, Danfei Gu, Pingchao Hao
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Publication number: 20240069117Abstract: The invention discloses a method, a system, a device, and a medium for detecting a battery state of health. The method includes extracting a target curve segment from a first charging characteristic curve of a battery under test; and determining, according to a corresponding relation between characteristic parameters of the target curve segment and the battery state of health, the battery state of health matching the characteristic parameters of the target curve segment, and determining the battery state of health as the battery state of health of the battery under test. By utilizing said corresponding relation as the calculation basis, the invention improves the reliability and accuracy of the detection of battery state of health detection. The invention also tracks instances of abusive conditions that accelerate battery aging, assessing whether such conditions accelerate battery degradation and issuing warnings accordingly.Type: ApplicationFiled: August 24, 2023Publication date: February 29, 2024Inventors: Peng Ding, Yanwen Zhang, Weikun Wu, Haowen Ren, Zonglin Cai, Guopeng Zhou, Xiaohua Chen, Xiao Yan, Enhai Zhao, Pei Song, Danfei Gu, Pingchao Hao
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Publication number: 20240055859Abstract: A source-grid-load-storage networked collaborative frequency control method is disclosed, which comprises acquiring total active power ?P to be regulated during a secondary frequency regulation process of a power grid; performing frequency regulation by source-grid-load-storage of the power distribution system, allocating power regulation capacities, and determining whether the desired total active power is met after the frequency regulation; if the desired total active power is met, determining whether power of power generation units is out of limit; if the power of the power generation units is not out of limit, keeping active power of the power distribution system in balance to complete frequency regulation of the power grid; if the power of the power generation units is out of limit, correcting the power regulation capacities of the power generation units of the source-grid-load-storage and compensating a power difference to keep the active power of the power distribution system in balance.Type: ApplicationFiled: July 30, 2021Publication date: February 15, 2024Applicants: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER REREARCH INSTITUTE CO. LTDInventors: Dong YUE, Chunxia DOU, Zhijun Zhang, Wenbin YUE, Xiaohua DING, Jianbo LOU, Yanman LI, Kun HUANG, Tao HAN
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Patent number: 11862982Abstract: A networked control method for primary frequency regulation of a new energy power station based on a source-grid-load-storage networked cloud decision control system platform comprises: determining, according to historical operating data of a new energy power station, primary frequency regulation predictive values of power generation units of the new energy power station; determining, according to the primary frequency regulation predictive values, optimal control sequences of inverters of the power generation units at different times based on a pre-established inverter active power model, wherein the optimal control sequences comprise multiple control quantities of active power of the inverters; marking the optimal control sequences at the different times with time scales, sending the optimal control sequences to executing devices of the power generation units, receiving the optimal control sequences, and determining whether to store or not store the optimal control sequences; and determining the control quaType: GrantFiled: August 2, 2021Date of Patent: January 2, 2024Assignees: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO., LTDInventors: Dong Yue, Chunxia Dou, Zhijun Zhang, Xiaohua Ding, Jianbo Luo, Yanman Li, Kun Huang, Tao Han
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Publication number: 20230387691Abstract: A multi-timescale voltage regulation method based on source-grid-load-storage multi-terminal collaboration of a power distribution network is disclosed, which comprises: establishing, based on a Petri network, a multi-mode switching control model based on voltage security event trigger to realize effective control of a global voltage; establishing multi-objective optimization taking into account a source-storage-load regulation cost and a network transmission loss to realize collaborative and dynamic control of controllable resources of a source terminal, a load terminal and a storage terminal in each operating mode; and establishing a source-storage-load multi-terminal collaboration-based distributed voltage control model based on voltage security event trigger over a short timescale by taking into account the problems of voltage magnitude being out of limit and voltage leap, and solving online an optimal control sequence of the source terminal, the load terminal and the storage terminal in a receding horizoType: ApplicationFiled: January 5, 2022Publication date: November 30, 2023Applicants: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO. LTDInventors: Dong YUE, Chunxia DOU, Zhijun ZHANG, Xiaohua DING, Jianbo LUO, Yanman LI, Kun HUANG, Tao HAN
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Publication number: 20230312582Abstract: Provided are salts of a compound of formula (I) having an ATX inhibitory activity. The salts comprises inorganic acid salts or organic acid salts, and solid forms of the salts, such as crystal forms. The salts of the compound of formula (I) and their crystal forms according to the present disclosure have a good solubility, stability and hygroscopicity, and are more suitable for medicinal use. Moreover, their preparation methods are simple and convenient, and are suitable for large-scale production.Type: ApplicationFiled: July 28, 2021Publication date: October 5, 2023Applicant: Wuhan Humanwell Innovative Drug Research And Development Center Limited CompanyInventors: Xuejun Zhang, Yang Yue, Sijun Lei, Qingfeng Xia, Yuan Li, Qiongfeng Yang, Min'an Liu, Shaoxia Yang, Ming Liu, Bin Hu, Shoubo Zhang, Xiaohua Ding, Zhe Liu
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Publication number: 20230291207Abstract: A networked control method for primary frequency regulation of a new energy power station based on a source-grid-load-storage networked cloud decision control system platform comprises: determining, according to historical operating data of a new energy power station, primary frequency regulation predictive values of power generation units of the new energy power station; determining, according to the primary frequency regulation predictive values, optimal control sequences of inverters of the power generation units at different times based on a pre-established inverter active power model, wherein the optimal control sequences comprise multiple control quantities of active power of the inverters; marking the optimal control sequences at the different times with time scales, sending the optimal control sequences to executing devices of the power generation units, receiving the optimal control sequences, and determining whether to store or not store the optimal control sequences; and determining the control quaType: ApplicationFiled: August 2, 2021Publication date: September 14, 2023Applicants: NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE CO., LTDInventors: Dong YUE, Chunxia DOU, Zhijun ZHANG, Xiaohua DING, Jianbo LUO, Yanman LI, Kun HUANG, Tao HAN
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Publication number: 20220204479Abstract: The present disclosure relates to pyrimidine compounds, and more specifically, relates to pyrimidine compounds, preparation methods thereof, and uses thereof in manufacture of medicaments. Provided is a compound represented by Formula (I) or a tautomer, stereoisomer, hydrate, solvate, pharmaceutical acceptable salt, or prodrug of the compound represented by Formula (I). The compound has a significant inhibitory effect on ATX enzyme, exhibits excellent liver metabolism stability, is metabolized more slowly in the human body, and has higher exposure.Type: ApplicationFiled: March 4, 2022Publication date: June 30, 2022Applicant: Wuhan Humanwell Innovative Drug Research And Development Center Limited CompanyInventors: Xuejun ZHANG, Lie LI, Jie SHEN, Wenjun WEI, Sijun LEI, Xiaohua DING, Yang ZANG, Hongna SUN, Qiangqiang FU
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Publication number: 20220064172Abstract: Provided is a new compound capable of effectively inhibiting ATX. The compound is represented by formula I, or the compound is a tautomer, a stereoisomer, a hydrate, a solvate, a salt, or a prodrug of the compound represented by formula I. In formula (I), R1 and R2 are independently selected from —H or —CH3, provided that: R1 and R2 are not —H at the same time or are not —CH3 at the same time.Type: ApplicationFiled: January 22, 2020Publication date: March 3, 2022Inventors: Xuejun ZHANG, Dabing YE, Lie LI, Jie SHEN, Xiaohua DING, Hongna SUN, Zhe LIU, Yang ZANG, Yonggang WEI
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Patent number: 11161803Abstract: The present disclosure belongs to the field of chemical synthesis, and in particular relates to an ammonium carboxylate compound, a crystalline form and an amorphous form, and a preparation method thereof. The present disclosure prepares the compound and the crystalline form I and its single crystal, amorphous form and crystalline form II thereof. The compound, the crystalline forms, the single crystal and the amorphous form can stably exist and exhibit good solid forms, suitable for medicine-making. Furthermore, these products possess high purity and less single impurity. Moreover, the preparation methods of the present disclosure are easy to implement due to the simple processes with mild reaction conditions, and could produce products of high yield and high purity without complex purification steps. Furthermore, the preparation methods may facilitate safety, environmental protection, and industrial production.Type: GrantFiled: April 27, 2018Date of Patent: November 2, 2021Assignee: WUHAN LL SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.Inventors: Bo Zhang, Xiaohua Ding, Dongcheng Dai, Sijun Lei, Xueming Liu, Panpan Duan, Yongkai Chen, Chaodong Wang
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Publication number: 20200055812Abstract: The present disclosure belongs to the field of chemical synthesis, and in particular relates to an ammonium carboxylate compound, a crystalline form and an amorphous form, and a preparation method thereof. The present disclosure prepares the compound and the crystalline form I and its single crystal, amorphous form and crystalline form II thereof. The compound, the crystalline forms, the single crystal and the amorphous form can stably exist and exhibit good solid forms, suitable for medicine-making. Furthermore, these products possess high purity and less single impurity. Moreover, the preparation methods of the present disclosure are easy to implement due to the simple processes with mild reaction conditions, and could produce products of high yield and high purity without complex purification steps. Furthermore, the preparation methods may facilitate safety, environmental protection, and industrial production.Type: ApplicationFiled: April 27, 2018Publication date: February 20, 2020Inventors: Bo ZHANG, Xiaohua DING, Dongcheng DAI, Sijun LEI, Xueming LIU, Panpan DUAN, Yongkai CHEN, Chaodong WANG
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Patent number: 8405716Abstract: A folding optical path transfer videometrics method for measuring the three-dimensional position and attitude of non-intervisible objects is disclosed. In one aspect, the method includes the following: constructing a folding optic path between an invisible target and a reference, disposing transfer station comprising a camera, a cooperating mark and a laser range finder on each break point in the folding optic path. The method may further include processing an image shot by each camera, accounting for the distance measured by the laser range finder, obtaining a position and posture information corresponding to each adjacent transfer station, summing the values from the reference to the invisible target, and achieving three-dimensional position and posture of the invisible target relating to the reference.Type: GrantFiled: August 11, 2009Date of Patent: March 26, 2013Inventors: Qifeng Yu, Yang Shang, Xiaohua Ding, Xiaohu Zhang, Guangwen Jiang
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Publication number: 20100066827Abstract: A folding optical path transfer videometrics method for measuring the three-dimensional position and attitude of non-intervisible objects is disclosed. In one aspect, the method includes the following: constructing a folding optic path between an invisible target and a reference, disposing transfer station comprising a camera, a cooperating mark and a laser range finder on each break point in the folding optic path. The method may further include processing an image shot by each camera, accounting for the distance measured by the laser range finder, obtaining a position and posture information corresponding to each adjacent transfer station, summing the values from the reference to the invisible target, and achieving three-dimensional position and posture of the invisible target relating to the reference.Type: ApplicationFiled: August 11, 2009Publication date: March 18, 2010Inventors: Qifeng Yu, Yang Shang, Xiaohua Ding, Xiaohu Zhang, Guangwen Jiang