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91.发明授权公开(公告)号：US11840998B2
公开(公告)日：2023-12-12
申请号：US17859244
申请日：2022-07-07
申请人： Zhejiang University
发明人： Zheming Tong , Jiage Xin , Shuiguang Tong
IPC分类号： F03B11/00 , G06F18/2137 , G06F18/243
CPC分类号： F03B11/008 , F05B2260/80 , F05B2270/305 , F05B2270/333 , F05B2270/404 , F05B2270/709 , F05B2270/80 , G06F18/2137 , G06F18/24323
摘要： The present invention provides a hydraulic turbine cavitation acoustic signal identification method based on big data machine learning. According to the method, time sequence clustering based on multiple operating conditions under the multi-output condition of the hydraulic turbine set is performed by utilizing an neural network, characteristic quantities of the hydraulic turbine set under a steady condition in a healthy state is screened; a random forest algorithm is introduced to perform feature screening of multiple measuring points under steady-state operation of the hydraulic turbine set, optimal feature measuring points and optimal feature subsets are extracted, finally a health state prediction model is constructed by using gated recurrent units; whether incipient cavitation is present in the equipment is judged. The present invention can effectively identify the occurrence of incipient cavitation in the hydraulic turbine set, reducing unnecessary shutdown of the equipment and prolonging the service life.
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公开(公告)号：US11725637B2
公开(公告)日：2023-08-15
申请号：US16640577
申请日：2018-08-22
发明人： Soobum Lee
IPC分类号： F03G7/08 , F03D17/00 , F03G3/08 , H02K7/18 , H02K35/02 , H02N2/18 , H10N30/02 , H10N30/30 , H10N30/80 , H10N30/88
CPC分类号： F03G7/08 , F03D17/00 , F03G3/08 , H02K7/1876 , H02K35/02 , H02N2/18 , H02N2/181 , H02N2/186 , H10N30/02 , H10N30/30 , H10N30/306 , H10N30/80 , H10N30/88 , F05B2220/60 , F05B2270/80
摘要： Energy harvesters (EH) which can effectively harvest wasted vibrational/kinematic energy and convert it into electrical energy for battery-free sensor operation are described herein. The energy harvesters can be integrated with a power management circuit and a wireless sensor for monitoring wind turbine blades. The target application of the energy harvesters includes powering the wireless sensors used for wind turbine blade structural monitoring.
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公开(公告)号：US10072635B2
公开(公告)日：2018-09-11
申请号：US14528101
申请日：2014-10-30
CPC分类号： F03D17/00 , F05B2270/334 , F05B2270/80 , F05B2270/807 , G01L3/02 , G01M15/14 , G01P3/00
摘要： A wind turbine including a plurality of blades, a micro inertial measurement unit installed on each blade and configured to sense a plurality of detection parameter signals at corresponding installation positions, and a monitoring system configured to monitor an operating state of the blades. The monitoring system includes a signal processing unit configured to obtain a processing parameter signal through calculation based on the detection parameter signals, a signal analyzing unit configured to analyze each analysis parameter signal, selected from the plurality of detection parameter signals and the processing parameter signal, to obtain a fault estimation signal, used to estimate whether a corresponding blade works in a fault state, and a fault evaluating unit configured to evaluate, based on a plurality of fault estimation signals, whether a corresponding blade fails or a probability that the corresponding blade fails.
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公开(公告)号：US20180223813A1
公开(公告)日：2018-08-09
申请号：US15746173
申请日：2016-06-24
申请人： NTN CORPORATION
发明人： Toru TAKAHASHI
CPC分类号： F03D17/00 , F03D7/0204 , F03D80/82 , F05B2270/329 , F05B2270/80 , G01C17/02 , G01H11/02 , Y02E10/723
摘要： A condition monitoring system for a wind turbine generator includes an orientation sensor installed in a nacelle and configured to detect an orientation of the nacelle and a condition monitoring unit configured to receive an output from the orientation sensor and perform at least any one of recording, analysis, or transmission of a signal. The condition monitoring unit preferably detects, based on the output from the orientation sensor, the movement along the rotation direction of the nacelle associated with a torsional oscillation of the tower. The orientation sensor can also detect slow directional fluctuations that are difficult to detect using an acceleration sensor or the like, and thus, can satisfactorily detect the rotation of the nacelle associated with the torsional oscillation of the tower.
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公开(公告)号：US10012213B2
公开(公告)日：2018-07-03
申请号：US15015451
申请日：2016-02-04
CPC分类号： F03D7/0244 , F03D7/0264 , F03D7/042 , F03D7/047 , F03D17/00 , F05B2230/60 , F05B2230/80 , F05B2270/303 , F05B2270/321 , F05B2270/334 , F05B2270/504 , F05B2270/80 , G05B19/0428 , G05B23/0267 , G05B23/0291 , G05B2219/14116 , G05B2219/2619 , Y02E10/723
摘要： The present disclosure is directed to a system and method for controlling and/or upgrading aftermarket multivendor wind turbines. The system includes a turbine controller configured to control operations of the wind turbine, a safety device configured to provide a signal indicative of a health status of the safety device, and a secondary controller inserted between the safety device and the turbine controller. The secondary controller is configured to receive the signal from the safety device over a communication interface. As such, if the signal indicates a normal health status, the secondary controller is configured to send the signal to the turbine controller, i.e. maintain normal operation. Alternatively, if the signal indicates a poor health status, the secondary controller is configured to adjust the signal based at least in part on a signal bias to an adjusted signal and to provide the adjusted signal to the turbine controller.
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公开(公告)号：US20180119678A1
公开(公告)日：2018-05-03
申请号：US15814283
申请日：2017-11-15
发明人： Rodolphe LEBOSQ
CPC分类号： F03D17/00 , F03D1/0666 , F03D7/0204 , F03D7/0224 , F03D13/20 , F05B2220/709 , F05B2240/912 , F05B2270/301 , F05B2270/32 , F05B2270/321 , F05B2270/329 , F05B2270/80 , G01P5/02 , G01P13/025 , Y02E10/723 , Y02E10/728
摘要： The disclosure relates to a measuring arrangement of a wind power plant having a tower and an aerodynamic rotor with at least one rotor blade, for sensing wind conditions, comprising at least a first and a second measuring device for arrangement at different heights on the tower, and wherein each measuring device is prepared so as to sense, at the respective height at which it is to be arranged, wind values for different horizontal directions, said values being representative of a wind pressure from the respective direction.
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公开(公告)号：US20180010526A1
公开(公告)日：2018-01-11
申请号：US15432312
申请日：2017-02-14
发明人： Takahiro MORI , Masayuki TOBO , Kazuna SAWATA
CPC分类号： F02C9/20 , F01K7/165 , F01K23/101 , F02C3/04 , F02C6/18 , F02C9/54 , F05B2220/602 , F05B2270/80 , F05D2220/72 , F05D2270/303 , H02K7/1823 , Y02E20/16
摘要： In one embodiment, a plant includes a combustor to burn fuel with oxygen from an inlet guide vane (IGV) to generate a gas for a gas turbine (GT), and a heat recovery steam generator to use an exhaust gas from GT to generate steam for a steam turbine (ST). An apparatus controls an IGV opening degree to a first degree and a GT output value to a value larger than a first value between GT start and ST start. The first value is an output value at which exhaust gas temperature can be kept at a first temperature that depends on ST metal temperature, when the IGV opening degree is the first degree. The apparatus increases the IGV opening degree from the first degree based on steam temperature or the GT output value, while the GT output value is controlled to the value larger than the first value.
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公开(公告)号：US09790914B2
公开(公告)日：2017-10-17
申请号：US15004881
申请日：2016-01-22
申请人： Michael Fuquan Lee
发明人： Michael Fuquan Lee
CPC分类号： F03B15/00 , F03B13/1855 , F05B2260/4031 , F05B2270/107 , F05B2270/402 , F05B2270/602 , F05B2270/80 , Y02E10/38
摘要： The present invention provides a system and method for converting wave energy into electric energy in an intelligent, practical, and efficient manner. The system utilizes a power input shaft coupled with a vertically reciprocating buoy to rotate a crank gear and a ratchet gear meshing therewith. An intelligent control system is included to monitor, control, and optimize the operations of the system. The length of the power input shaft is adjusted in response to water level fluctuations so that the rotational motion of the crank gear is intelligently controlled within a predetermined desirable region for maximum efficiency.
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公开(公告)号：US20170226990A1
公开(公告)日：2017-08-10
申请号：US15354064
申请日：2016-11-17
发明人： Teresa Arlaban Gabeiras , Marta Urien Zumeta , Jose Luis Laborda Rubio , Oscar Luquin Hermoso de Mendoza , Carmen Azpillaga Alsasua , Alberto García Barace , Alejandro Gonzalez Murua , Jose Luis Arístegui Lantero , Jose Miguel Garcia Sayes , Miguel Nunez Polo
CPC分类号： F03D80/40 , F03D1/06 , F03D7/0224 , F03D7/0276 , F03D7/047 , F03D17/00 , F05B2260/80 , F05B2270/32 , F05B2270/325 , F05B2270/404 , F05B2270/70 , F05B2270/80 , Y02E10/721
摘要： A wind turbine is disclosed which comprises a control system configured to execute at least one ice removal routine which comprises a heating stage of at least one of the blades (3), and a mechanical removal ice stage. A wind turbine removing ice method is also disclosed which comprises a stage wherein the presence of ice is detected on at least one of the blades and, once said presence of ice is detected, comprises a stage wherein at least one ice removal routine is activated which comprises, in turn, a heating stage of at least one of the blades and a mechanical removing ice stage on at least said blade.
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公开(公告)号：US20170226987A1
公开(公告)日：2017-08-10
申请号：US15015451
申请日：2016-02-04
IPC分类号： F03D7/02 , G05B19/042 , G05B23/02 , F03D7/04 , F03D17/00
CPC分类号： F03D7/0244 , F03D7/0264 , F03D7/042 , F03D7/047 , F03D17/00 , F05B2230/60 , F05B2230/80 , F05B2270/303 , F05B2270/321 , F05B2270/334 , F05B2270/504 , F05B2270/80 , G05B19/0428 , G05B23/0267 , G05B23/0291 , G05B2219/14116 , G05B2219/2619 , Y02E10/723
摘要： The present disclosure is directed to a system and method for controlling and/or upgrading aftermarket multivendor wind turbines. The system includes a turbine controller configured to control operations of the wind turbine, a safety device configured to provide a signal indicative of a health status of the safety device, and a secondary controller inserted between the safety device and the turbine controller. The secondary controller is configured to receive the signal from the safety device over a communication interface. As such, if the signal indicates a normal health status, the secondary controller is configured to send the signal to the turbine controller, i.e. maintain normal operation. Alternatively, if the signal indicates a poor health status, the secondary controller is configured to adjust the signal based at least in part on a signal bias to an adjusted signal and to provide the adjusted signal to the turbine controller.
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