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公开(公告)号：US07615880B2
公开(公告)日：2009-11-10
申请号：US11774868
申请日：2007-07-09
CPC分类号： H02P9/006 , F03D7/0272 , F03D7/028 , F03D7/042 , F03D9/25 , F03D9/255 , F05B2270/1016 , F05B2270/1033 , F05B2270/327 , G09G2320/064 , H02J3/386 , H02P2101/15 , Y02E10/723 , Y02E10/725 , Y02E10/763
摘要： A wind turbine generator system can regulate the rotational velocity of the wind turbine within an operation range even when the wind velocity suddenly changes and can perform continuous operation of the wind turbine. The wind turbine generator system includes a generator connected to the shaft of the wind turbine and a converter connected to the generator. When the rotational velocity of the wind turbine is within a predetermined range, power outputted from the generator is controlled so as to follow the instruction concerning the generator output given from the wind turbine to the converter. When the rotational velocity of the wind turbine is out of the predetermined range, the power outputted from the generator is controlled without following the instruction concerning generator output given from the wind turbine to the converter.
摘要翻译： 风力发电机系统即使当风速突然变化并且可以执行风力涡轮机的连续运行时，也可以在运行范围内调节风力涡轮机的旋转速度。 风力发电机系统包括连接到风力涡轮机的轴的发电机和连接到发电机的转换器。 当风力涡轮机的旋转速度在预定范围内时，控制从发电机输出的功率，以便遵循关于从风力涡轮机给转换器的发电机输出的指令。 当风力涡轮机的旋转速度超出预定范围时，从发电机输出的功率被控制，而不用遵循关于从风力涡轮机向转换器给出的发电机输出的指令。
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公开(公告)号：US20090168474A1
公开(公告)日：2009-07-02
申请号：US11964274
申请日：2007-12-26
IPC分类号： H02M1/00
摘要： In a system to which a fluctuating load is connected, compensating for fluctuation in voltage harmonics at the load connecting point and fluctuation in system current harmonics has been difficult for a power converting device connected in parallel with the load. To resolve the problem, a power converting device connected in parallel with a fluctuating load includes: a Fourier series expansion unit which executes Fourier series expansion to load current by use of a reference sine wave in sync with a system and thereby outputs Fourier coefficients; and a fundamental component calculating unit which calculates a positive phase active fundamental component of the load current from the Fourier coefficients. A current instruction of the power converting device is generated by subtracting the fundamental current from the load current. With the current instruction, the fluctuations in system current harmonics and in voltage harmonics at the connecting point can be compensated for.
摘要翻译： 在连接波动负载的系统中，与负载并联连接的电力转换装置难以补偿负载连接点的电压谐波的波动和系统电流谐波的波动。 为了解决该问题，与波动负载并联连接的电力转换装置包括：傅立叶级数扩展单元，其通过使用与系统同步的参考正弦波来执行傅立叶级数展开以加载电流，从而输出傅里叶系数; 以及从傅立叶系数计算负载电流的正相位有源基波分量的基波分量计算单元。 通过从负载电流中减去基波电流来产生电力转换装置的电流指令。 利用当前的指令，可以补偿系统电流谐波和连接点电压谐波的波动。
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93.发明申请公开(公告)号：US20090066297A1
公开(公告)日：2009-03-12
申请号：US12270175
申请日：2008-11-13
CPC分类号： H02P9/42 , H02P9/007 , H02P2101/15
摘要： A power generation apparatus and method includes an AC energization synchronous generator, a switching device which connects to a network disposed on a stator side of the AC energization synchronous generator, an energizing device which applies a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit which detects a voltage of the switching device on the stator side. A rotational frequency of the AC energization synchronous generator is estimated or calculated based on a frequency of a stator side voltage of the switching device, while the switching device is open.
摘要翻译： 一种发电装置和方法，包括交流通电同步发电机，连接到设置在交流通电同步发电机的定子侧的网络的开关装置，向交流通电次级绕组施加变频交流的通电装置 同步发电机和检测定子侧的开关装置的电压的第一电压检测单元。 交流通电同步发电机的转速在切换装置断开时，基于开关装置的定子侧电压的频率来推定或计算。
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公开(公告)号：US07485980B2
公开(公告)日：2009-02-03
申请号：US11624239
申请日：2007-01-18
申请人： Masaya Ichinose , Shinya Oohara , Motoo Futami , Yasuhiro Imazu
发明人： Masaya Ichinose , Shinya Oohara , Motoo Futami , Yasuhiro Imazu
CPC分类号： H02P9/007 , H02P21/00 , Y10T307/615
摘要： An excitation power converter of a doubly-fed generator is protected from excess current to be caused by ground fault or system disturbance and operation continuity of the power converter is ensured. In a power converter system, in order not to flow excess current generated in secondary windings of the doubly-fed generator into the power converter, a rectifier is connected in parallel to the power converter via a reactor, a DC link of the rectifier is connected to a DC link of the power converter, excess current flowing from the secondary windings is separately flowed at a reactor impedance ratio to reduce an amount of current flowing into the power converter, and a semiconductor switching element of an excess current generation arm of the power converter is set to an on-state.
摘要翻译： 双馈发电机的励磁功率转换器可以防止由接地故障或系统干扰引起的过电流，确保电源转换器的运行连续性。 在功率转换器系统中，为了不使在双馈发电机的次级绕组中产生的过剩电流流入功率转换器，整流器经由电抗器并联连接到功率转换器，整流器的直流链路被连接 对于功率转换器的DC链路，从次级绕组流出的过剩电流以电抗器阻抗比率分开流动，以减少流入功率转换器的电流量，以及功率的过电流产生臂的半导体开关元件 转换器设置为开状态。
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95.发明申请Wind Power Generation Apparatus, Wind Power Generation System and Power System Control Apparatus 有权风力发电装置，风力发电系统和电力系统控制装置公开(公告)号：US20080106099A1
公开(公告)日：2008-05-08
申请号：US11751742
申请日：2007-05-22
申请人： Masaya Ichinose , Shinya Oohara , Motoo Futami
发明人： Masaya Ichinose , Shinya Oohara , Motoo Futami
CPC分类号： F03D7/0284 , F03D7/042 , F03D9/255 , H02J3/16 , H02J3/386 , H02P9/007 , H02P9/305 , H02P23/26 , H02P2101/15 , Y02E10/723 , Y02E10/763 , Y02E40/34
摘要： An interface device transmits a reactive power command depending on a power system from a voltage regulation device of the power system to a wind power generation apparatus electrically connected to the power system, and the wind power generation apparatus receives the reactive power command. Then, the wind power generation apparatus outputs reactive power according to a value obtained by adding, to a reactive power command, another reactive power command for suppression of voltage fluctuation caused by output power of the wind power generation apparatus.
摘要翻译： 接口装置根据电力系统从电力系统的电压调节装置向与电力系统电连接的风力发电装置发送无功功率指令，风力发电装置接收无功功率指令。 然后，风力发电装置根据对无功功率指令加上另一个用于抑制由风力发电装置的输出功率引起的电压波动的无功功率指令而获得的值来输出无功功率。
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公开(公告)号：US20080069692A1
公开(公告)日：2008-03-20
申请号：US11841013
申请日：2007-08-20
申请人： SHINYA OOHARA , Masaya Ichinose , Motoo Futami , Kazuya Tsutsumi , Takashi Shiraishi , Shigeo Yoshida , Hajime Komiyama , Junichi Sugino
发明人： SHINYA OOHARA , Masaya Ichinose , Motoo Futami , Kazuya Tsutsumi , Takashi Shiraishi , Shigeo Yoshida , Hajime Komiyama , Junichi Sugino
IPC分类号： F03D7/00
CPC分类号： F03D7/047 , F03D7/0224 , F03D7/043 , F05B2270/1011 , F05B2270/107 , F05B2270/1071 , F05B2270/327 , F05B2270/328 , Y02E10/723
摘要： A pitch controller, uninterruptible power supply, and rotational speed detector are disposed in the rotor in a wind turbine. When a slip ring failure or wire breakage occurs, the pitch controller internally creates a pitch angle command so as to control the pitch angle.
摘要翻译： 变桨控制器，不间断电源和转速检测器设置在风力涡轮机中的转子中。 当发生滑环故障或断线时，俯仰控制器内部产生俯仰角指令，以控制俯仰角。
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公开(公告)号：US07271500B1
公开(公告)日：2007-09-18
申请号：US11599581
申请日：2006-11-14
申请人： Mamoru Kimura , Motoo Futami , Masaya Ichinose , Kazumasa Ide , Kazuhiro Imaie
发明人： Mamoru Kimura , Motoo Futami , Masaya Ichinose , Kazumasa Ide , Kazuhiro Imaie
IPC分类号： H02P9/10
CPC分类号： H02P9/007 , H02P21/06 , H02P21/14 , H02P2207/076
摘要： Because of the necessity of resolver for detecting a rotating position, which is very expensive, and noise suppression of the rotating position signal line on a doubly-fed machine, cost increase of the generator and reduced reliability due to possible failures are inevitable. In order to solve such problem, a generation system in the present invention is equipped with an exciter that estimates the slip frequency of the doubly-fed machine from each primary current I1 and voltage V1 and secondary current I2 and voltage V2 of the doubly-fed machine and excites the secondary of the doubly-fed machine at the estimated slip frequency.
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公开(公告)号：US20070200348A1
公开(公告)日：2007-08-30
申请号：US11679759
申请日：2007-02-27
申请人： Masaya Ichinose , Motoo Futami , Hiromitsu Sakai
发明人： Masaya Ichinose , Motoo Futami , Hiromitsu Sakai
CPC分类号： H02P9/007 , F03D7/026 , F03D9/255 , F05B2270/337 , H02P9/10 , H02P2101/15 , Y02E10/723 , Y10T307/735
摘要： To shorten a startup interval to reach a synchronizing condition, a phase difference and an amplitude difference between the grid voltage and the stator voltage of one phase of a winding are obtained. The difference in amplitude is decreased prior to or in parallel to synchronizing the stator voltage with the grid voltage. The calculated compensation phase compensation value is used as an initial value for synchronizing at the next synchronizing operation.
摘要翻译： 为了缩短启动间隔以达到同步状态，获得了绕组的一相的电网电压和定子电压之间的相位差和振幅差。 在使定子电压与电网电压同步之前或之后，振幅的差异减小。 计算出的补偿相位补偿值用作在下一个同步操作下进行同步的初始值。
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公开(公告)号：US20070097565A1
公开(公告)日：2007-05-03
申请号：US11586540
申请日：2006-10-26
IPC分类号： H02H7/06
CPC分类号： H02J3/24 , H02J3/386 , Y02E10/763
摘要： A distributed generation system that can suppress a voltage fluctuation caused by a distributed generation by an apparatus of a small power capacity in the distributed generation itself and stabilize the power system voltage without inserting interharmonic voltage or current into the power system and without interference among a plurality of distributed generations. Parameter α(t) varying with time is estimated based on fluctuating component ΔP of the active power P generated by the distributed generation and the voltage fluctuating component ΔV attributable to the distributed generation developed at the point of connection between the distributed generation and power system. The distributed generation produces reactive power Q=−αP or Q=−αΔP, to thereby suppresses only the voltage fluctuation of the power system attributable to the distributed generation.
摘要翻译： 一种分布式发电系统，其可以抑制由分布式发电本身中的小功率容量的装置的分布式发电引起的电压波动，并且稳定电力系统电压，而不将间谐波电压或电流插入到电力系统中，并且在多个 的分布式世代。 基于由分布式发电产生的有功功率P的波动分量ΔP和归因于在分布式发电和电力系统之间的连接点产生的分布式发电的电压波动分量DeltaV来估计随时间变化的参数α（t）。 分布式发电产生无功功率Q = -alphaP或Q = -alphaDeltaP，从而仅抑制归因于分布式发电的电力系统的电压波动。
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公开(公告)号：US07145262B2
公开(公告)日：2006-12-05
申请号：US11445243
申请日：2006-06-02
申请人： Akira Kikuchi , Motoo Futami , Yasuhiro Imazu , Yoshio Eguchi
发明人： Akira Kikuchi , Motoo Futami , Yasuhiro Imazu , Yoshio Eguchi
CPC分类号： H02P9/105 , F03D7/0272 , F03D7/0296 , F05B2270/327 , H02P21/05 , H02P2101/15 , Y02E10/723 , Y02E10/725
摘要： A wind turbine generator system is equipped with a three phase generator connected to a shaft of a windmill, a converter connected to a stator of the generator, and an inverter connected to the converter and also to an electric power system. The system extracts a torsional vibration component of the shafting between the windmill and generator from the detected rotation speed of the generator, regulates the active component of the current command to the converter according to the vibration component, and controls so as to minimize the rotation speed variation of the generator.
摘要翻译： 风力发电机系统配备有连接到风车的轴的三相发电机，连接到发电机的定子的转换器，以及连接到转换器以及电力系统的逆变器。 系统根据检测到的发电机转速，提取风车和发电机之间轴系的扭转振动分量，根据振动分量调节转换器电流指令的有效分量，并将其转速最小化 发电机的变化。
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