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公开(公告)号：US10947952B2
公开(公告)日：2021-03-16
申请号：US16339570
申请日：2017-09-11
Applicant: Dalian University of Technology
Inventor： Wei Shi , Zhiyu Jiang , Zhengru Ren , Dezhi Ning
Abstract: The present invention relates generally to the offshore renewable energy utilization technology. A novel floating wind-wave integrated power generation system is based on the braceless semi-submersible floating wind turbine concept and the oscillating water column (OWC) wave energy generator. The integrated system includes the offshore wind energy system and the oscillating water column wave energy system. The novel floating wind-wave integrated power generation system transfers the rise and fall movement of the water column into the air in and out movement which is converted into the electricity by the air turbine generator. This invention makes good use of pontoons at of the semi-floating platform and the mooring lines. Since the wave energy system will move with the wave movement, which will reduce the power generation efficiency. The pontoon can help to mitigate this movement. The mooring system can further prevent the movement of the wave energy device. This invention uses the braceless structure, which simplifies the construction process and reduce the fatigue issues for the braces. Compared with the traditional three columns semi-submersible wind turbine, this invention enlarges the water plane area. The moment of inertia for hydrostatic stability is enhanced, and the stability of the floating foundation is improved.
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2.发明授权公开(公告)号：US11585315B2
公开(公告)日：2023-02-21
申请号：US17504287
申请日：2021-10-18
Applicant: Dalian University of Technology
Inventor： Dezhi Ning , Xiangyu Zhang , Yili Wang , Rongquan Wang , Mengzhao Cheng , Yaohua He
Abstract: The present disclosure belongs to the technical field of new energy utilization, and provides an offshore oscillating water column wave energy conversion device with an external permeable structure. The offshore oscillating water column wave energy conversion device with the external permeable structure comprises an oscillating water column system, an anchoring fixing system and a permeable structure. According to the offshore oscillating water column wave energy conversion device with the external permeable structure provided by the present disclosure, the offshore oscillating water column wave energy conversion device and the permeable structure are effectively combined. Using an offshore floating structure, the offshore oscillating water column wave energy conversion device with the external permeable structure can be applied to deep and far sea areas with higher wave energy density, and the output power of the device can be effectively improved.
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3.发明申请公开(公告)号：US20220162986A1
公开(公告)日：2022-05-26
申请号：US17504287
申请日：2021-10-18
Applicant: Dalian University of Technology
Inventor： Dezhi Ning , Xiangyu Zhang , Yili Wang , Rongquan Wang , Mengzhao Cheng , Yaohua He
Abstract: The present disclosure belongs to the technical field of new energy utilization, and provides an offshore oscillating water column wave energy conversion device with an external permeable structure. The offshore oscillating water column wave energy conversion device with the external permeable structure comprises an oscillating water column system, an anchoring fixing system and a permeable structure. According to the offshore oscillating water column wave energy conversion device with the external permeable structure provided by the present disclosure, the offshore oscillating water column wave energy conversion device and the permeable structure are effectively combined. Using an offshore floating structure, the offshore oscillating water column wave energy conversion device with the external permeable structure can be applied to deep and far sea areas with higher wave energy density, and the output power of the device can be effectively improved.
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公开(公告)号：US11168674B2
公开(公告)日：2021-11-09
申请号：US16980331
申请日：2019-10-11
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Chongwei Zhang , Qianze Zhuang , Dezhi Ning
Abstract: A wave energy thermal storage type seawater thermoelectric power generation device which comprises a buoy-type energy capture system, a platform system and a mooring system. A whole friction liquid heating, thermal storage and power generation device is arranged inside a platform, which improves the adaptability of the whole system to the external environment. A flywheel and liquid friction heating method is adopted to generate heat more efficiently. Inner ratchets and pawls are used to control the movement of a flywheel so that the flywheel always rotates in one direction, and when the rotating speed of the flywheel exceeds that of the inner ratchets, the external wave energy cannot be transferred to the flywheel through the movement of the inner ratchets so as to limit the upper limit of the rotating speed of the flywheel and protect the safety of the flywheel system.
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公开(公告)号：US11118646B2
公开(公告)日：2021-09-14
申请号：US16495022
申请日：2018-02-28
Applicant: Dalian University of Technology
Inventor： Zhiyu Jiang , Zhengru Ren , Wei Shi , Dezhi Ning
Abstract: An active tuned mass damper applied to the offshore monopile wind turbine belongs to the field of marine technology. A mass block is connected to the inner wall of the tower through a spring. The two ends of the damper and the force actuator are connected to the mass block and the inner wall of the tower, respectively. When the installation of tower is finished, the spring and the damper begin to work. The movement of mass block will partly offset the movement of the tower caused by the wave force. The force actuator starts to work before the mating. The exact position of the nacelle can be obtained from the Global Positioning System (DGPS). The position of tower can be adjusted in the horizontal plane through the force actuator. So, the offshore installation time for nacelle will be saved. The whole installation time and cost will also be reduced.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11474558B2
公开(公告)日：2022-10-18
申请号：US17278934
申请日：2020-11-12
Inventor： Dezhi Ning , Yichao Sun , Chongwei Zhang , Di Wu , Qing Zhou , Heyin Li
Abstract: The present disclosure discloses a time synchronous hybrid analog and digital sensor data acquisition system and method, comprising analog sensors, digital modules, digital sensors, hubs for networking a plurality of heterogeneous sensors, a local-area network device and a data processing terminal. The present disclosure solves the problem that data cannot be compared due to time difference in acquisition for the reason that the sampling time of different sensors cannot be synchronized precisely in the existing experiments and practical engineering, and also solves the problems of single function, low integration level and manpower consumption when different sensor instruments work separately. The data acquisition system of the present disclosure can be directly connected to various heterogeneous sensors to realize synchronous acquisition, synchronous transmission and simple and fast operation. The present disclosure greatly increases the time precision, amplitude precision and efficiency of synchronous acquisition, reduces the labor cost, and has wide application prospect.
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公开(公告)号：US11412716B2
公开(公告)日：2022-08-16
申请号：US16631102
申请日：2018-05-24
Applicant: Dalian University of Technology
Inventor： Wei Shi , Lixian Zhang , Dezhi Ning , Kai Wang , Tiaojian Xu , Bo Zhou
Abstract: A floating breakwater and wind energy integrated system used for offshore aquaculture. The system contains the wind turbine system, the floating breakwater system, and offshore aquaculture system. The combination of wind turbine, floating breakwater system and offshore aquaculture system makes full use of the floating breakwater, thus decrease the wave load on the floating cage. In addition, the floating breakwater offers a supporting platform to the floating wind turbine, which effectively reduces the costs of the wind turbine. Meanwhile, a power autarkic offshore aquaculture system may be realized by using the electrical energy generated by the turbine. Compared with the simple offshore aquaculture system, the utilization rate of the sea per unit becomes even higher while the costs of the floating wind turbine becomes even lower.
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公开(公告)号：US10697435B2
公开(公告)日：2020-06-30
申请号：US16340663
申请日：2017-09-11
Applicant: Dalian University of Technology
Inventor： Zhengru Ren , Zhiyu Jiang , Wei Shi , Dezhi Ning
Abstract: An anti-swing device for offshore wind turbine tower installation which reduces pendular motion of the tower component during mating process. Subsystems are at the transition piece, tower, and bridge. Winches are arranged on and fixed to the tower's inner wall and connected through cables. A remote signal transceiver and acquisition controller are arranged and fixed to the tower's inner wall. The transceiver controls the connector at the tower end and servo winch motors which control the cables to adjust the position of the suspended tower component. The controller acquires tension signals on the cables from the tower and transmits signals to the transceiver. Acceleration sensors are included in the acquisition controller. Several connector are included in the tower end and fixed at the bottom of the tower component. The number of connectors is the same as winches at the transition piece and their positions correspond.
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公开(公告)号：US12085051B2
公开(公告)日：2024-09-10
申请号：US17799577
申请日：2021-12-27
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Chongwei Zhang , Jierao Dai , Dezhi Ning
CPC classification number: F03B13/142 , F03B11/008 , G01L9/00
Abstract: The present invention belongs to the technical field of ocean energy utilization, and provides a test system for turbine comprehensive performance of a pneumatic wave energy converter. The test system for turbine comprehensive performance of the pneumatic wave energy converter comprises a wave surface simulation system, an airflow rectifier system, a turbine device, a tabletop support structure, an instrument support frame and a sensor analysis system. A programmable linear motor is used to drive a bellows to simulate the complex oscillating airflow of the pneumatic wave energy converter; a complete sensor and measurement system is configured for various performance indexes of a turbine system; and finally, an effective technical evaluation means for the power generation efficiency and comprehensive performance evaluation of the pneumatic wave energy converter is provided. The present invention has simple assembly and disassembly technologies and high flexibility.
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10.发明授权公开(公告)号：US11353000B2
公开(公告)日：2022-06-07
申请号：US16980737
申请日：2019-10-11
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Chongwei Zhang , Zhenyu Ding , Dezhi Ning
Abstract: A wave-direction-adaptive wave focusing type wave energy convertor with multiple water channels, comprising an energy acquisition system, an energy conversion system and a support system. Wave focusing is carried out through double water channels, so that the movement amplitude of water particles behind a box is doubled. A device is connected with a fixed pile through universal bearings, so that an opening of the device is always faced to a wave flow direction, which adapts to different seasons and water conditions, has low environmental requirements, and can be used in a wide sea area. Several coils of pretension spring compression are arranged in a winding barrel, so that a nylon rope connected to a buoy is ensured to be always in a straightened state and not derail from pulley blocks to work abnormally due to looseness whether the buoy is at a wave crest or a wave trough.
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