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公开(公告)号：US10936770B2
公开(公告)日：2021-03-02
申请号：US16909753
申请日：2020-06-23
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Xiaoping Zhang , Ji Liu
IPC: G06F30/20 , G05B13/04 , H02M3/158 , G06F111/10
Abstract: A mathematical model between the optimization objects and the optimization objectives is established, with finite-time control parameters as optimization objects, and a total harmonic distortion of an output voltage, a deviation signal of a capacitor voltage and a deviation signal of an output current of BBMC as optimization objectives. A multi-objective optimization satisfaction function and a multi-objective optimization fitness function are established. Multiple sets of optimal finite-time control parameters are iteratively optimized using an adaptive wolf pack algorithm. Functional relationships between respective optimal finite-time control parameters and the corresponding actual output current of BBMC are obtained using a numerical fitting method. Optimal control parameters corresponding to any load are obtained according to the obtained functional relationships. Therefore, the control parameters are adjusted in real time according to the functional relationships and the load of the BBMC-based speed regulation system or the actual output current of BBMC.
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公开(公告)号：US10849325B2
公开(公告)日：2020-12-01
申请号：US16236174
申请日：2018-12-28
Applicant: Hunan University of Science and Technology
Inventor： Cailun Huang , Yongjun Tian , Jing Wang , Nian Zhang , Li Ouyang , Junwei Zhu , Kaixuan Zhang , Xiongsheng Yi
Abstract: The invention disclosed an intelligent dehumidification device for a hot air circulation baking system, which internally includes a compressor, a condenser, a throttle valve, an evaporator, a total heat exchanger, a controller, a heat dissipation fan, a liquid level sensor, a temperature and humidity sensor, an axial flow fan, a drain solenoid valve, a condensate collecting box and a temperature sensor and externally includes a dehumidification air inlet, a dehumidification air outlet, a fresh air inlet, a heat dissipation air outlet and a condensate discharge port. The beneficial effects of present application are recovery of internal circulation waste heat, non-emission intelligent dehumidification and preservation of beneficial ingredients of the baked product for the hot air circulation baking system during the baking process can be realized, and functions of grid overpressure and undervoltage detection and protection, compressor overheat protection, delayed start after compressor shutdown, automatic condensate discharge can be achieved.
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53.发明授权公开(公告)号：US10704350B2
公开(公告)日：2020-07-07
申请号：US16731068
申请日：2019-12-31
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Yongping Jin , Xiaojun Huang , Jialiang Wang
Abstract: A process for drilling natural gas hydrates. A drilling rig is placed in seawater. A suction-press core drilling mode is adopted in a soft sediment formation, a suction-rotary core drilling mode is adopted in a medium-hard sediment formation, or a pumping direction circle-rotary core drilling mode is adopted in a hard sediment formation. A core is extracted. An inner tube for wireline pressure coring is recovered. A holding seal cap is tightened, and the inner tube is stored in a pipe storage rack. Punching is carried out. An inner tube for wireline pressure coring which is hollow is captured to disengage the holding seal cap. The inner tube is lowered. A drill rod is added. The punching is carried out again. The above steps are repeated until the core drilling reaches a given drilling depth. The drill rod, the drill and the corer are recovered.
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54.发明申请公开(公告)号：US20250154055A1
公开(公告)日：2025-05-15
申请号：US19024581
申请日：2025-01-16
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY , HUNAN XIANGCHU XIANLU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
Inventor： Meixun PENG , Qiming ZHAO , Yuanpeng ZHANG , Wenwei LIU , Meilin CHEN
Abstract: A method for preparing a general-purpose cement by chlorination roasting of aluminosilicates is provided, in which a mixture of aluminosilicates and sodium chloride is roasted in a steam atmosphere to obtain a roasted slag. The roasted slag is mixed with a material containing calcium oxide and magnesium oxide and ground to prepare a raw meal powder. The raw meal powder is subjected to oxidative calcination at a temperature not lower than 1240° C., followed by rapid cooling to obtain a calcined slag. The calcined slag is mixed with 0-3% by weight of caustic alkali and ground to obtain the general-purpose cement.
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公开(公告)号：US20250085328A1
公开(公告)日：2025-03-13
申请号：US18820679
申请日：2024-08-30
Applicant: Hunan University of Science and Technology
Inventor： Zhaohua LIU , Zhijian YI , Junjie LONG , Lei CHEN , Mingyang LV , Ming LI
Abstract: Provided is a precise fault location method for a collector line in an onshore wind farm. The method includes sends sending, by a slave unit, a high-voltage pulse signal at the beginning of a collector line to measure a cable length at a fault point of the collector line. A master unit and the slave unit send high-voltage pulse signals to each other to measure a cable length at any point on the collector line, thereby obtaining a geographical location corresponding to the cable length. The two measured cable lengths are compared and if the measured lengths are inconsistent, the master unit is moved, to make the two measured lengths equal with multiple approaches. In this case, the position of the master unit is a geographical location corresponding to the fault point.
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Patent Agency Ranking
公开(公告)号：US12084933B2
公开(公告)日：2024-09-10
申请号：US18457150
申请日：2023-08-28
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping Jin , Zhaodong Tong , Youduo Peng
Abstract: A drilling and sampling device applied to a seafloor tracked vehicle, including a slide seat, a positioning electromagnet, a pipe-replacing cylinder, a dial claw, a plurality of clamping assemblies, a plurality of sampling drill pipes, a drill pipe rack, a frame, a thrust cylinder, a pipe-releasing assembly, a guide rod, a drive pipe, a power head, and a pipe-replacing disc. The guide rod and the thrust cylinder are fixedly arranged on the frame. The slide seat is in clearance fit with the guide rod. A piston rod end of the thrust cylinder is hingedly connected to the slide seat. The power head is fixedly arranged on the slide seat. The drive pipe is arranged at an output end of the power head, and is coaxially screwed with the plurality of sampling drill pipes. The dial claw is slidably arranged in the arc guide groove.
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公开(公告)号：US20240103194A1
公开(公告)日：2024-03-28
申请号：US18520524
申请日：2023-11-27
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Hui CHENG , Chenxing JIA , Diquan LI , Guohong FU , Xiuying LIAO
IPC: G01V3/02 , H03K19/177 , H03K19/21
CPC classification number: G01V3/02 , H03K19/177 , H03K19/21
Abstract: A detection device for high-frequency pseudo-random spread spectrum coded sequence signal of shallow geologic body includes a signal transmitter and a synchronous signal receiver. The signal transmitter includes a first Mono-Chip Computer (MCU), a first Field Programmable Gate Array (FPGA), a power amplifier module, a direct-current (DC) power supply, a first display module, a first Global Position System (GPS) synchronization module, a first communication module, and a first memory module. The synchronous signal receiver includes a preamplifier circuit, a bandpass filter circuit, a program-controlled amplifier circuit, an analog to digital (AD) converter circuit, a second FPGA, a second MCU, a second communication module, a second display module, a second GPS synchronization module, and a second memory module. A method using the detection device is further provided.
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公开(公告)号：US11774336B2
公开(公告)日：2023-10-03
申请号：US17719326
申请日：2022-04-12
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping Jin , Zhaodong Tong , Buyan Wan
IPC: G01N3/56
CPC classification number: G01N3/567
Abstract: A friction and wear testing platform capable of simulating high-pressure, silt-containing and turbid submarine environment, including a tank, a loading device, a partition plate, a partition cylinder, a top sealing sleeve, a bottom sealing sleeve, a rotating shaft, an inner magnetic cylinder, an outer magnetic cylinder and a centering table. The partition plate and the partition cylinder divide an inner chamber of the tank into a test chamber and a pressure compensation chamber. The rotating shaft penetrates the pressure compensation chamber; two ends of the rotating shaft are sealed by the top and bottom sealing sleeves, respectively, as well as sealing bearings and rings therein. The loading device drives the rotating shaft to rotate, and the rotating shaft drives the inner magnetic cylinder to rotate. The centering table is driven through the magnetic coupling between the inner and outer magnetic cylinders to install a test piece.
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59.发明授权公开(公告)号：US11762122B2
公开(公告)日：2023-09-19
申请号：US17687126
申请日：2022-03-04
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Guohong Fu , Songyuan Fu , Hui Cheng , Tianchun Yang
Abstract: A device for reducing turn-off time of a transient electromagnetic transmitting signal includes a transmitting coil, a first electronic switch to control connection mode of the transmitting coil and a second electronic switch configured to form a bridge arm. The transmitting coil is a twisted pair including a first wire and a second wire. The first wire is connected to one end of the second electronic switch. The other end of the second electronic switch is connected to one end of the first electronic switch. The other end of the first electronic switch is connected to the second wire. The connection mode of the transmitting coil includes head-to-head connection, head-to-tail connection and tail-to-tail connection between the first wire and the second wire. The first wire and the second wire are connected to form a transmitting loop.
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公开(公告)号：US20230083078A1
公开(公告)日：2023-03-16
申请号：US17476917
申请日：2021-09-16
Applicant: Hunan University of Science and Technology
Inventor： Chaoyang Chen , Yong Xiao , Ming Chi , Li Ding , Yanwu Wang , Zuguo Chen , Pei Li , Juan Chen , Bowen Zhou
Abstract: A method for intelligent fault detection and location of a power distribution network is provided, which includes: constructing a network topology of the power distribution network, updating the network topology in real time to obtain an updated network topology, performing a fault identification based on the updated network topology, performing a fault locating based on the updated network topology to determine a fault node, and identifying a fault type based on a fault recorded signal of the fault node. With this method, fault locations and fault types of the power distribution network can be accurately detected in real time.
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