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公开(公告)号：US20070210651A1
公开(公告)日：2007-09-13
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
IPC分类号： H02J9/00
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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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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3.发明申请公开(公告)号：US20080143113A1
公开(公告)日：2008-06-19
申请号：US12031262
申请日：2008-02-14
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 for connecting to a network disposed on a stator side of the AC energization synchronous generator, an energizing device for applying a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit for detecting 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AC通电同步发电机，用于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，用于向交流通电的次级绕组施加变频AC的通电装置 同步发电机和用于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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4.发明授权公开(公告)号：US07332894B2
公开(公告)日：2008-02-19
申请号：US11412987
申请日：2006-04-28
IPC分类号： H02P9/44
CPC分类号： H02P9/42 , H02P9/007 , H02P2101/15
摘要： In a power generation apparatus equipped with an AC energization synchronous generator, when energization of a secondary winding starts to conduct connecting to the network of the AC energization synchronous generator to a network voltage, energization of the secondary winding starts at a fixed frequency and a slip frequency is calculated from a difference between a frequency of the network voltage and a resultant stator voltage frequency. Thereafter, energization starts at the calculated slip frequency and a voltage having a frequency generally coincident with the network frequency is output to the stator to incorporate the generator to the network. A phase is adjusted to make zero a phase difference when the rotation speed changes or the phases become different.
摘要翻译： 在配备有交流励磁同步发电机的发电装置中，当次级绕组的通电开始将交流通电同步发电机的网络连接到网络电压时，次级绕组的通电以固定的频率和滑动开始 频率根据网络电压的频率与合成的定子电压频率之间的差计算。 此后，以计算的滑差频率开始通电，并且将具有与网络频率大致一致的频率的电压输出到定子以将发电机并入网络。 当转速变化或相变不同时，调整相位使零相位差。
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公开(公告)号：US08116914B2
公开(公告)日：2012-02-14
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
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：US20100117606A1
公开(公告)日：2010-05-13
申请号：US12691790
申请日：2010-01-22
IPC分类号： H02P9/10
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＆Dgr; P，以及归因于在分布式发电之间的连接点产生的分布式发电的电压波动分量＆Dgr; V来估计随时间变化的参数α（t） 和电力系统。 分布式发电产生无功功率Q =-αP或Q =-α＆Dgr; P，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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7.发明授权公开(公告)号：US07453242B2
公开(公告)日：2008-11-18
申请号：US12031262
申请日：2008-02-14
IPC分类号： H02P9/44
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 for connecting to a network disposed on a stator side of the AC energization synchronous generator, an energizing device for applying a variable frequency AC to a secondary winding of the AC energization synchronous generator, and a first voltage detection unit for detecting 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AC通电同步发电机，用于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，用于向交流通电的次级绕组施加变频AC的通电装置 同步发电机和用于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：US20080277938A1
公开(公告)日：2008-11-13
申请号：US12116272
申请日：2008-05-07
申请人： Shinya OOHARA , Masaya Ichinose , Motoo Futami , Tadashi Sodeyama
发明人： Shinya OOHARA , Masaya Ichinose , Motoo Futami , Tadashi Sodeyama
IPC分类号： F03D7/00
CPC分类号： F03D7/0224 , F03D7/0284 , F03D9/255 , F05B2270/101 , F05B2270/337 , Y02E10/723 , Y02E10/725
摘要： A wind power generation system wherein procedure for controlling the blade pitch is changed in accordance with the rate of decrease in the amplitude of the grid voltage, and when over current occurs in the grid-side power converter, the grid-side power converter is brought into the gate-blocked condition whereas the generator-side power converter continues its operation.
摘要翻译： 风力发电系统，其中根据电网电压振幅降低的速度改变用于控制叶片间距的程序，并且当在电网侧功率转换器中发生过电流时，将电网侧功率转换器 进入闸门阻塞状态，而发电机侧电源转换器继续其操作。
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公开(公告)号：US07948217B2
公开(公告)日：2011-05-24
申请号：US12691790
申请日：2010-01-22
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＆Dgr; P，以及归因于在分布式发电之间的连接点产生的分布式发电的电压波动分量＆Dgr; V来估计随时间变化的参数α（t） 和电力系统。 分布式发电产生无功功率Q =-αP或Q =-α＆Dgr; P，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：US07728451B2
公开(公告)日：2010-06-01
申请号：US11954453
申请日：2007-12-12
CPC分类号： F03D7/028 , F03D9/255 , F05B2220/70642 , H02P9/007 , H02P21/22 , H02P2101/15 , Y02E10/725
摘要： A wind power generation system includes: a wind turbine in which at least one blade is mounted on an axis; a generator for generating multiphase alternating current power by rotation of the axis; and a multiphase power conversion device for performing PWM-control for adjustment and output of generated power of the generator. With the configuration, the PWM-control provides for each phase a control paused period in which no overlap occurs. Thus, the pulse density between the control period and the control paused period of other phases is low, thereby generating high and low density in an inter-phase pulse.
摘要翻译： 风力发电系统包括：风力涡轮机，其中至少一个叶片安装在轴上; 用于通过所述轴的旋转产生多相交流电力的发电机; 以及用于执行用于调整和输出发电机的发电功率的PWM控制的多相电力转换装置。 通过该配置，PWM控制为每个阶段提供一个不发生重叠的控制暂停时段。 因此，控制周期与其他相的控制暂停时间之间的脉冲密度低，从而在相间脉冲中产生高和低密度。
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