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公开(公告)号：US20160177927A1
公开(公告)日：2016-06-23
申请号：US14971035
申请日：2015-12-16
Applicant: Hitachi, Ltd.
Inventor： Mitsuru SAEKI , Takashi SHIRAISHI , Junichi SUGINO
CPC classification number: F03D13/25 , B63B21/50 , B63B2021/505 , B63B2035/442 , B63B2035/446 , F03D9/25 , F03D13/22 , F05B2240/2213 , F05B2240/93 , F05B2240/95 , Y02E10/721 , Y02E10/726 , Y02E10/727
Abstract: A wind power generation system comprising: a wind power generation equipment having a rotor which is operative to convert energy of received wind to rotational energy, a nacelle which supports the rotor rotatably, a tower which supports the nacelle rotatably, a floating body which supports the tower and at least a part of itself is positioned above the surface of the sea, a fixing member which is installed or fixed on the sea bed, a mooring member which couples the floating body and the fixing member, wherein the mooring member is coupled to the floating body at place upward of the center of gravity of the floating body and the wind power generation equipment, and the floating body is practically supported by one fixing member.
Abstract translation: 一种风力发电系统，包括：风力发电设备，具有转子，其可操作以将接收到的风的能量转换为旋转能量，可转动地支撑转子的机舱，可旋转地支撑所述机舱的塔架， 并且其自身的至少一部分定位在海面上方，安装或固定在海床上的固定构件，连接浮体和固定构件的系泊构件，其中系泊构件联接到 浮体在浮体和风力发电设备的重心的上方，浮体实际上被一个固定构件支撑。
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公开(公告)号：US20180058426A1
公开(公告)日：2018-03-01
申请号：US15675291
申请日：2017-08-11
Applicant: Hitachi, Ltd.
Inventor： Shinichi KONDOU , Masachika NAKATANI , Tomomichi ITO , Mitsuru SAEKI , Kiyoshi SAKAMOTO
CPC classification number: F03D7/048 , F03D7/0204 , F03D7/0264 , F03D7/028 , F05B2270/20 , F05B2270/335 , Y02E10/721 , Y02E10/723
Abstract: The purpose is to provide a wind farm that is capable of increasing power generation output or a control method of a wind farm. In order to solve the problems, a wind farm according to the present invention includes plural wind power generation apparatuses each of which has: blades; a nacelle that supports the blades to make the blades rotatable; and a tower that supports the nacelle to make the nacelle rotatable in its yaw movement, the wind farm including a control device that, with the use of the wind condition information of the wind farm, the disposition information of first wind power generation apparatuses that are stopping power generation and the disposition information of second wind power generation apparatuses that are located on the leeward side of the first wind power generation apparatuses among all the wind power generation apparatuses, and the design information of the first wind power generation apparatuses, outputs a yaw angle designation value to the first wind power generation apparatuses or the second wind power generation apparatuses so that the generated electric energy of the wind farm becomes large.
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公开(公告)号：US20140091571A1
公开(公告)日：2014-04-03
申请号：US13964272
申请日：2013-08-12
Applicant: Hitachi, Ltd.
Inventor： Takashi HASHIMOTO , Mitsuru SAEKI , Shigeo YOSHIDA
IPC: F03D7/00
CPC classification number: F03D7/00 , F03D7/02 , F03D7/0204 , F03D7/0224 , F05B2240/93 , F05B2240/95 , Y02E10/721 , Y02E10/723
Abstract: A wind turbine system includes a tower, a nacelle which is supported on the tower, a plurality of blades which are rotatably supported to the nacelle via a hub, and a generator which generates electricity by rotating the blades, wherein in case the tower shifts from vertical direction, the wind turbine system is controlled so that a force with an opposite direction to the tower shifting direction is added by wind.
Abstract translation: 风力涡轮机系统包括塔架，支撑在塔架上的机舱，经由轮毂可旋转地支撑在机舱上的多个叶片，以及通过旋转叶片产生电力的发电机，其中在塔架从 风力涡轮机系统受到控制，使得具有与塔架移动方向相反的方向的力被风加入。
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公开(公告)号：US20220316653A1
公开(公告)日：2022-10-06
申请号：US17638414
申请日：2020-10-15
Applicant: Hitachi, Ltd.
Inventor： Kyoko KOJIMA , Mitsuru SAEKI , Shinichiro AIKAWA
Abstract: Provided is a diagnosis technique with high reliability when a state of lubricating oil of a rotary machine such as a wind power generator is diagnosed by a state monitoring sensor. A diagnosis system of lubricating oil includes a lubricating oil utilization device, a lubricating oil tank for storing lubricating oil to be supplied to the lubricating oil utilization device, and a sensor which measures characteristics of the lubricating oil. In this system, the state of the lubricating oil is diagnosed by using sensor data obtained after a time required for air bubbles in the lubricating oil generated at the time of use of the device disappear elapses since the lubricating oil utilization device is regularly or irregularly stopped.
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公开(公告)号：US20180258917A1
公开(公告)日：2018-09-13
申请号：US15913277
申请日：2018-03-06
Applicant: Hitachi, Ltd.
Inventor： Ryo UETA , Mitsuru SAEKI
CPC classification number: F03D17/00 , F03D1/0675 , F05B2240/2211 , F05B2240/912 , F05B2270/804 , F05B2270/808 , F05B2280/6003 , G01B11/18 , G01L1/242 , G01L1/246 , G01L1/26 , G01M5/0016 , G01N21/95 , G01N2201/0873 , G01N2201/088 , G02B6/02076 , G02B6/4432 , Y02E10/721 , Y02E10/726 , Y02E10/728
Abstract: To provide a wind turbine blade or a wind power generation device provided with a strain detecting system having a high level of soundness. The blade includes a structural material constituting the blade, plural optical fibers 15A and 15B arranged within or on a surface of the structural material, and an optical cable 16A that connects adjacent ones of the optical fiber sensors, and a length of the optical cable 16A is longer than the shortest distance between the adjacent optical fiber sensors.
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Patent Agency Ranking
公开(公告)号：US20140308129A1
公开(公告)日：2014-10-16
申请号：US14252355
申请日：2014-04-14
Applicant: Hitachi, Ltd.
Inventor： Shigehisa FUNABASHI , Shingo INAMURA , Yasushi SHIGENAGA , Mitsuru SAEKI
IPC: F03D9/00
CPC classification number: F03D80/60 , F03D9/255 , F03D80/82 , F05B2240/2213 , F05B2260/221 , Y02E10/725 , Y02E10/726
Abstract: Provided is a wind power generation system that is less likely to change its cooling performance depending on the wind direction. In order to solve the above problem, the wind power generation system of the invention includes blades adapted to rotate upon receiving wind, a generator for performing a power generating operation by rotating a rotor together with rotation of the blades, a nacelle for supporting the blades via a main shaft, a tower for rotatably supporting the nacelle, a power conditioning system or transformer accommodated in the tower, and a plurality of radiators disposed on an outer peripheral side of the tower for cooling the power conditioning system or the transformer. The radiators positioned substantially at the same height are arranged at substantially equal intervals in a circumferential direction of the tower.
Abstract translation: 提供了根据风向不太可能改变其冷却性能的风力发电系统。 为了解决上述问题，本发明的风力发电系统包括适于在接收风时旋转的叶片，用于通过与叶片的旋转一起旋转转子来执行发电操作的发电机，用于支撑叶片的机舱 通过主轴，用于可旋转地支撑所述机舱的塔架，容纳在所述塔架中的功率调节系统或变压器，以及设置在所述塔架的外周侧的多个散热器，用于冷却所述功率调节系统或所述变压器。 基本上位于相同高度处的散热器在塔的圆周方向上以大致相等的间隔布置。
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7.发明申请公开(公告)号：US20200292450A1
公开(公告)日：2020-09-17
申请号：US16649257
申请日：2018-08-22
Applicant: HITACHI, LTD.
Inventor： Kyoko KOJIMA , Mitsuru SAEKI , Shinichiro AIKAWA , Yasuki KITA
IPC: G01N21/51
Abstract: A method for diagnosing the deterioration of a lubricant, and a system and method for monitoring a lubricant of a rotating machine are capable of diagnosing the deterioration of an additive to a lubricant. The concentration of the additive to the lubricant is obtained by using chromaticity data obtained on the basis of measurement data from an optical sensor, and, on the basis thereof, the deterioration of the lubricant is diagnosed. In addition, the system for monitoring the lubricant is provided with an optical sensor, an input device, a processing device, a storage device, and an output device. The storage device stores, in a time series, the concentration of the additive to the lubricant, which is obtained with the optical sensor, and the processing device estimates the time at which the concentration of the additive reaches a threshold value on the basis of concentration data of the additive.
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公开(公告)号：US20180258916A1
公开(公告)日：2018-09-13
申请号：US15913101
申请日：2018-03-06
Applicant: Hitachi, Ltd.
Inventor： Takahiko SAWADA , Mitsuru SAEKI
CPC classification number: F03D17/00 , F03D1/0675 , F05B2270/808 , Y02E10/721
Abstract: The present invention is intended to provide a blade for wind power generation or a wind power generation device that can measure the quantity of blade deformation with a simple structure while enhancing the reliability of structure. The blade includes a front tip part 10, a rear tip part 11, and a spar cap 17 configured to contain a fiber reinforcing layer, a shell core 18c arranged at least between the front tip part 10 and the spar caps 17 or between the rear tip part 11 and the spar caps 17, and a non-conductor sensor 12, wherein a concave is formed in a surface of the shell core 18c and the non-conductor sensor 12, and the non-conductor sensor 12 is arranged in the concave.
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公开(公告)号：US20150064007A1
公开(公告)日：2015-03-05
申请号：US14448536
申请日：2014-07-31
Applicant: Hitachi, Ltd.
Inventor： Kohei TANAKA , Ikuo TOBINAGA , Mitsuru SAEKI
CPC classification number: F03D1/065 , F03D1/06 , F03D9/25 , F03D15/00 , F03D15/10 , F03D80/70 , F03D80/88 , F05B2260/40 , Y02E10/721 , Y02E10/726
Abstract: A wind power generation system according to the invention includes: blades configured to receive wind to rotate; a nacelle supporting a load from the blades; a tower supporting the nacelle; a hub supporting the blades and configured to be rotated with the blades; a rotary main shaft configured to be rotated with the rotation of the hub; a gearbox connected to the rotary main shaft and configured to increase a speed of the rotation; and a generator configured to be driven at the rotation speed increased by the gearbox. The rotary main shaft is connected directly to the hub.
Abstract translation: 根据本发明的风力发电系统包括：叶片，构造成接收风旋转; 支撑来自叶片的载荷的机舱; 支撑机舱的塔架; 支撑叶片并构造成与叶片一起旋转的轮毂; 旋转主轴，其构造成随着所述轮毂的旋转而旋转; 连接到旋转主轴并构造成增加旋转速度的齿轮箱; 以及被构造成以由齿轮箱增加的转速驱动的发电机。 旋转主轴直接连接到轮毂上。
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公开(公告)号：US20140310958A1
公开(公告)日：2014-10-23
申请号：US14258714
申请日：2014-04-22
Applicant: Hitachi, Ltd.
Inventor： Juhyun YU , Mitsuru SAEKI , Takahiko SANO , Kouhei TANAKA , Shingo INAMURA
IPC: F03D1/00
CPC classification number: F03D13/10 , B60P3/40 , E04H12/34 , F03D13/40 , F05B2230/604 , F05B2230/61 , F05B2250/311 , Y02E10/726 , Y02P70/523 , Y10T29/49321
Abstract: Provided is an assembly method of a wind power generation system that can enhance the safety of an assembly work, and which can reduce a working time. In order to solve the above problem, the assembly method of a wind power generation system of the present invention includes assembly of the wind power generation system which includes a rotor with a hub and blades, a nacelle for accommodating therein at least a generator connected to the rotor via a main shaft connected to the hub, and a tower supporting the nacelle on a top portion thereof, and having an opposite side thereof to the top portion fixed to a foundation, the tower including separated tower parts. When assembling the wind power generation system, the nacelle and the tower are laterally assembled together by using a carriage, and the rotor is fixed to the laterally-facing nacelle.
Abstract translation: 提供了一种风力发电系统的组装方法，其可以提高组装工作的安全性，并且可以减少工作时间。 为了解决上述问题，本发明的风力发电系统的组装方法包括风力发电系统的组装，风力发电系统包括具有轮毂和叶片的转子，用于容纳至少一个发电机的机舱， 所述转子经由连接到所述轮毂的主轴，以及在其顶部支撑所述机舱的塔架，并且具有固定到基座的顶部的相对侧，所述塔架包括分离的塔架部件。 在组装风力发电系统时，通过使用滑架将机舱和塔侧向组装在一起，转子固定在横向面向的机舱上。
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