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71. 发明专利

JP2012170305A Wind generator system 审中-公开
标题翻译：风力发电机系统
公开(公告)号：JP2012170305A
公开(公告)日：2012-09-06
申请号：JP2011031512
申请日：2011-02-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ICHINOSE MASAYA , MATSUTAKE MITSUGU , KIYOFUJI YASUHIRO , MEGURO HIKARI
IPC分类号： H02P9/00
摘要： PROBLEM TO BE SOLVED: To protect an excitation power converter of an AC excitation type generator from overcurrent and DC overvoltage, which occur due to a system accident and system disturbance, and to operate the generator without detaching it from a system.SOLUTION: The system includes: an AC excitation converter 2042 connected to a rotor winding and a DC section of a converter 2041 on a system side; a converter controller 205 for controlling the converter 2041 on the system side and the AC excitation converter 2042; and an overcurrent consumption device 212 having an energy consumption section connected to the DC section via a short-circuit switch section and constituted of a plurality of resistors. The converter controller 205 is short-circuited by the short-circuit switch section and stops a gate of the AC excitation converter and allows excess current flow to the plurality of resistors of the energy consumption section when the excess current is detected by means detecting the current between the AC excitation generator and the AC excitation converter or DC voltage rise detecting means.
摘要翻译：要解决的问题：为了保护交流励磁发生器的励磁电力转换器免受由于系统事故和系统扰动而发生的过电流和直流过电压的影响，并且在不将其从系统中分离的情况下操作发电机。解决方案：该系统包括：连接到转子绕组的AC励磁转换器2042和系统侧的转换器2041的直流部分; 用于控制系统侧的转换器2041和AC激励转换器2042的转换器控制器205; 以及具有通过短路开关部连接到DC部分并由多个电阻器构成的能量消耗部分的过电流消耗装置212。转换器控制器205被短路开关部分短路，并停止AC励磁转换器的门，并且当通过检测电流的方式检测到过电流时，允许过剩电流流向能量消耗部分的多个电阻器交流励磁发电机和交流励磁变换器或直流电压上升检测装置之间。版权所有（C）2012，JPO＆INPIT

72. 发明专利

JP2011226326A Control device and method for wind power generator group 有权
标题翻译：风力发电机组控制装置及方法
公开(公告)号：JP2011226326A
公开(公告)日：2011-11-10
申请号：JP2010094811
申请日：2010-04-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KONDO SHINICHI , UCHIYAMA MICHIYUKI , ICHINOSE MASAYA , MATSUTAKE MITSUGI
IPC分类号： F03D7/04 , F03D1/02 , F03D9/02
CPC分类号： Y02A30/12 , Y02E10/723
摘要： PROBLEM TO BE SOLVED: To maintain a fixed output by suppressing an output fluctuation of a wind farm.SOLUTION: This control device for a wind power generator group includes: a transmitting/receiving means 51 for receiving operation information sent from wind power generators 11, 12, 13 and transmitting output command information thereto; a central operation control means 41 for receiving the operation information to apply arithmetic processing to an output fluctuation and control the operation of the wind power generator group 100 depending on the output command information transmitted to the wind power generators 11, 12, 13; an output predicting means 53 for predicting a near-future output fluctuation on the basis of the prediction of a near-future wind velocity fluctuation for the wind power generator group 100 in accordance with the operation information; and an energy storage/release command means 54 for storing wind power energy as rotating energy when a total output is greater than a target output. The total output is limited to a value lower than a rated output, and the energy storage/release command means 54 releases the stored rotating energy near a minimum value for a near-future total output when the total output is smaller than the predetermined target output.
摘要翻译：要解决的问题：通过抑制风力发电场的输出波动来保持固定的输出。风力发电机组的控制装置包括：发送/接收装置51，用于接收从风力发电机11,12,13发送的操作信息，并向其发送输出指令信息; 中央操作控制装置41，用于接收操作信息以对输出波动进行运算处理，并根据发送到风力发电机11,12,13的输出命令信息来控制风力发电机组100的运转; 输出预测装置53，用于根据操作信息，根据对风力发电机组100的近期风速波动的预测来预测近期的输出波动; 以及用于在总输出大于目标输出时将风力能量作为旋转能量存储的能量存储/释放命令装置54。总输出被限制为低于额定输出的值，并且当总输出小于预定目标输出时，能量存储/释放指令装置54将存储的旋转能量释放到接近未来总输出的最小值附近。版权所有（C）2012，JPO＆INPIT

73. 发明专利

JP2011078186A Wind generator system and control method 有权
标题翻译：风力发电机系统及控制方法
公开(公告)号：JP2011078186A
公开(公告)日：2011-04-14
申请号：JP2009225901
申请日：2009-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAYAMA YASUAKI , ICHINOSE MASAYA , MATSUTAKE MITSUGI
IPC分类号： H02P9/00
CPC分类号： H02P9/007 , H02J3/01 , H02P9/42 , Y02E40/40
摘要： PROBLEM TO BE SOLVED: To solve the problem of a conventional system wherein a strain arises in a current on the system side of a converter by the influence of the low-order harmonic (for example, fifth or seventh order) of a stator voltage that is contained unexpectedly in the stator voltage depending upon the slot structure of the stator and rotor of an AC excitation type generator, although a voltage generated on the stator side by the excitation of the rotor can be set at the same frequency as the frequency of the system, by AC-exciting a rotor coil at a slip frequency by a converter, regarding an AC excitation type generator used for a generating set. SOLUTION: This wind generator system is equipped with: a means for removing harmonic of specified order from the input current detected value of the converter on the system side; and a means for using a current detected value after harmonic removal for control of the converter on the system side. This wind generator system improves the operation continuity of the converter on the system side. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题为了解决传统的系统的问题，其中通过下列方式影响转换器系统侧的电流的应变（例如，第五或第七阶）定子电压根据定子和交流励磁型发电机的转子的槽结构而在定子电压中意外地包含在内，尽管通过转子的激励在定子侧产生的电压可以设定为与关于用于发电机组的交流励磁型发电机，通过转换器以转差频率对转子线圈进行交流激励来进行系统的频率。解决方案：该风力发电机系统配备有：从系统侧的转换器的输入电流检测值中除去指定次序的谐波的装置; 以及用于在谐波去除之后使用电流检测值来控制系统侧的转换器的装置。该风力发电机系统提高了系统侧转换器的运行连续性。版权所有（C）2011，JPO＆INPIT

74. 发明专利

JP2010136515A Wind turbine generator system 审中-公开
标题翻译：风力发电机系统
公开(公告)号：JP2010136515A
公开(公告)日：2010-06-17
申请号：JP2008309441
申请日：2008-12-04
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIYAGAWA RYOHEI , SAKAI HIROMITSU , ICHINOSE MASAYA
IPC分类号： H02P9/00 , F03D7/00 , F03D9/00 , H02H9/02
CPC分类号： Y02E10/723
摘要： PROBLEM TO BE SOLVED: To install a system fault protection device which protects an exciting converter of an AC excitation type generator from an accidental current which is generated by a system accident, and to suppress a resonance phenomenon which occurs in the system fault protection device due to the switching operation of the exciting converter. SOLUTION: An inductance for suppressing resonance is connected between the exciting converter and the system fault protection device. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：安装系统故障保护装置，保护交流励磁型发电机的励磁转换器免受系统事故产生的意外电流的影响，并抑制系统故障中发生的共振现象由于励磁转换器的开关操作而导致的保护装置。
解决方案：用于抑制谐振的电感连接在励磁转换器和系统故障保护装置之间。版权所有（C）2010，JPO＆INPIT

75. 发明专利

JP2010130739A Wind turbine generator system 审中-公开
标题翻译：风力发电机系统
公开(公告)号：JP2010130739A
公开(公告)日：2010-06-10
申请号：JP2008300411
申请日：2008-11-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IMAZU YASUHIRO , TSUTSUMI KAZUYA , ICHINOSE MASAYA
IPC分类号： H02P9/00 , F03D7/06
CPC分类号： Y02E10/723
摘要： PROBLEM TO BE SOLVED: To solve the following problem associated with wind turbine generator systems: if a deviation occurs between the actual rotation angle of a generator and a rotation angle detected at a control circuit (shaft deviation), power cannot be normally controlled and oscillation is produced in power control. SOLUTION: When the differences between a command value and a detection value of active power and that of reactive power exceed a certain level, it is determined that a deviation occurs in rotation angle and the wind turbine generator system is accordingly controlled. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了解决与风力发电机系统相关的以下问题：如果发电机的实际旋转角度与控制电路检测到的旋转角度（轴偏差）之间发生偏差，则功率不能正常功率控制产生控制和振荡。解决方案：当指令值与有功功率的检测值与无功功率的检测值之间的差异超过一定水平时，判定为旋转角度发生偏差，从而控制风力发电机系统。版权所有（C）2010，JPO＆INPIT

76. 发明专利

JP2010035418A Method for controlling wind power generation system 有权
标题翻译：控制风力发电系统的方法
公开(公告)号：JP2010035418A
公开(公告)日：2010-02-12
申请号：JP2009259399
申请日：2009-11-13
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHARA SHINYA , ICHINOSE MASAYA , FUTAMI MOTOO , SODEYAMA TADASHI
IPC分类号： H02P9/00
CPC分类号： Y02E10/725
摘要： PROBLEM TO BE SOLVED: To enable a wind power generation system to continue operation or perform instant restart operation even in a system voltage drop or in an overcurrent in a system-side power converter. SOLUTION: A method for controlling the wind power generation system comprises controlling the rotation speed of a rotor within a predetermined range by changing the pitch angle of a blade when any of the voltage, current, and frequency of the power system or a current detection value of the wind power generation system is found to be an abnormal value and controlling reactive power by a generator-side converter toward a synchronous generator. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在系统侧功率转换器中的系统电压降或过电流中，也可使风力发电系统继续运转或进行即时重启动。解决方案：一种用于控制风力发电系统的方法，包括：当电力系统的电压，电流和频率中的任何一个变化时，通过改变叶片的俯仰角来将转子的转速控制在预定范围内发现风力发电系统的电流检测值为异常值，并且通过发电机侧变换器向同步发电机控制无功功率。版权所有（C）2010，JPO＆INPIT

77. 发明专利

JP2008283747A Wind power generation system and its control method 有权
标题翻译：风力发电系统及其控制方法
公开(公告)号：JP2008283747A
公开(公告)日：2008-11-20
申请号：JP2007124060
申请日：2007-05-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： OHARA SHINYA , ICHINOSE MASAYA , FUTAMI MOTOO , SODEYAMA TADASHI
IPC分类号： H02P9/00 , F03D9/00 , F03D11/00
CPC分类号： F03D7/0284 , F03D7/0224 , F03D9/255 , F05B2270/101 , F05B2270/337 , Y02E10/723 , Y02E10/725
摘要： PROBLEM TO BE SOLVED: To sustain operation of a wind power generation system or to perform instantaneous restart operation even when the system voltage drops or an overcurrent is generated in the system-side power converter. SOLUTION: In the wind power generation system, a control method of pitch angle is changed depending on the lowering rate of system voltage amplitude, and the gate of a system-side power converter is blocked while sustaining operation of a generator-side power converter when overcurrent is generated in the system-side power converter. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在系统侧功率转换器中产生系统电压下降或过电流时，也可以维持风力发电系统的动作或进行瞬时再起动。解决方案：在风力发电系统中，根据系统电压幅度的降低率来改变俯仰角的控制方法，并且在发电机侧的维持运行期间阻止系统侧功率转换器的栅极电源转换器在系统侧电源转换器中产生过电流。版权所有（C）2009，JPO＆INPIT

78. 发明专利

JP2008141925A Home battery controller, on-vehicle battery controller, home battery control system, on-vehicle battery control system, home battery control method and on-vehicle battery control method 有权
标题翻译：家用电池控制器，车载电池控制器，家用电池控制系统，车载电池控制系统，家用电池控制方法和车载电池控制方法
公开(公告)号：JP2008141925A
公开(公告)日：2008-06-19
申请号：JP2006328246
申请日：2006-12-05
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIYOFUJI YASUHIRO , TOYODA MASASHI , FUKASAKU YOSHINORI , ICHINOSE MASAYA , FUTAMI MOTOO
IPC分类号： H02J3/46 , H02J3/32 , H02J7/34
CPC分类号： B60L11/1842 , B60L11/1816 , B60L11/184 , B60L2230/30 , H02J3/008 , H02J3/32 , H02J7/0054 , Y02E60/721 , Y02T10/7005 , Y02T10/7088 , Y02T90/121 , Y02T90/128 , Y02T90/14 , Y02T90/16 , Y02T90/163 , Y02T90/168 , Y02T90/169 , Y04S10/126 , Y04S30/12 , Y04S30/14 , Y04S50/10
摘要： PROBLEM TO BE SOLVED: To operate a home battery system in the condition capable of obtaining the best cost performance. SOLUTION: The home battery controller transmits and receives information of power unit cost with the on-vehicle battery system using a power line communication, calculates a mean power unit cost in real time, and compares the unit cost, thereby judging a power supply having the least expensive power. Then, power is purchased on the basis of a result of judgement, and thus, the home battery system and the on-vehicle battery system having the best cost performance can be realized. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：在能够获得最佳性价比的条件下操作家用电池系统。
解决方案：家用电池控制器使用电力线通信与车载电池系统发送和接收电力单位成本信息，实时计算平均电力单位成本，并比较单位成本，从而判断电力电源具有最低的功率。然后，基于判断结果购买电力，能够实现具有最佳性价比的家用电池系统和车载电池系统。版权所有（C）2008，JPO＆INPIT

79. 发明专利

JP2007249341A Hydrogen production system 审中-公开
标题翻译：氢生产系统
公开(公告)号：JP2007249341A
公开(公告)日：2007-09-27
申请号：JP2006068917
申请日：2006-03-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJII KAZUMI , ICHINOSE MASAYA , FUTAMI MOTOO , IDE KAZUMASA , ITABASHI TAKESHI , TAMURA JUNJI
IPC分类号： G05F1/70 , C25B1/02 , F03D7/04 , F03D9/00 , G05F1/67 , H02J3/38
CPC分类号： Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02P20/133
摘要： PROBLEM TO BE SOLVED: To provide a wind power generation and hydrogen production system that stably supplies power from a wind power generation device to a load and a hydrogen production device.
SOLUTION: The absorption of power fluctuations of the wind power generation device in the hydrogen production device and the control of the current of the hydrogen production device can stabilize hydrogen production and suppress hydrogen production device degradation.
COPYRIGHT: (C)2007,JPO&INPIT

80. 发明专利

JP2007236192A Wind turbine generator system and its control method 审中-公开
标题翻译：风力发电机系统及其控制方法
公开(公告)号：JP2007236192A
公开(公告)日：2007-09-13
申请号：JP2007099993
申请日：2007-04-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ICHINOSE MASAYA , FUTAMI MOTOO , SAKAI HIROMITSU
IPC分类号： H02P9/00 , H02J3/40
CPC分类号： H02P2101/15
摘要： PROBLEM TO BE SOLVED: To provide a wind turbine generator system that is easy to effect synchronous closing to electrical system, and uses a secondary-excited generator. SOLUTION: The wind turbine generator system calculates a phase difference from a system voltage and a voltage amplitude value at a voltage of one phase portion of a stator voltage in order to shorten a time until synchronous closing to the system voltage of a secondary-excited generator, and synchronizes amplitude and phase of the system voltage and the voltage at a stator side, such that each deviation becomes smaller; firstly synchronizes amplitude and secondly synchronizes phase. Alternatively, synchronizes amplitude and phase concurrently, and further a corrected phase value calculated in effecting synchronization is used as an initial value in the second and later synchronizations. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种易于实现同步关闭到电气系统的风力发电机系统，并且使用二次励磁发电机。解决方案：风力发电机系统计算与定子电压的一相部分的电压下的系统电压和电压振幅值的相位差，以缩短直到与次级系统的系统电压同步闭合的时间并且使系统电压的振幅和相位与定子侧的电压同步，使得每个偏差变小; 首先同步幅度和二次相位同步。或者，同时同步幅度和相位，并且进一步将在实现同步时计算出的校正相位值用作第二和后续同步中的初始值。版权所有（C）2007，JPO＆INPIT

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