公开(公告)号：US08355824B2

公开(公告)日：2013-01-15

申请号：US12601565

申请日：2009-05-20

申请人： Akira Yasugi

发明人： Akira Yasugi

IPC分类号： G05D5/00

CPC分类号： F03D7/0284 ,  F03D7/042 ,  F03D7/048 ,  F05B2270/309 ,  F05B2270/335 ,  F05B2270/337 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763

摘要： In a case where a request for changing a maximum value of active power and a newly defined maximum value of active power are received from the utility grid side, a maximum value of an active power demand value set to a rated value is changed to the newly defined maximum value of active power at a predetermined change rate or less.

摘要翻译： 在从公用电网侧接收到有效功率的最大值的变更请求和新定义的有功功率的最大值的请求的情况下，将设定为额定值的有功功率需求值的最大值变更为新 定义的有功功率的最大值在预定变化率以下。

公开(公告)号：US08295988B2

公开(公告)日：2012-10-23

申请号：US12601153

申请日：2009-05-01

申请人： Akira Yasugi

发明人： Akira Yasugi

IPC分类号： G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00 ,  H02J1/12 ,  H02J3/02 ,  H02J3/38 ,  G05F5/00

CPC分类号： H02P9/102 ,  H02J3/16 ,  H02J3/185 ,  H02J3/386 ,  H02P2101/15 ,  Y02E10/763 ,  Y02E40/24 ,  Y02E40/34 ,  Y10T307/328 ,  Y10T307/359 ,  Y10T307/707

摘要： Voltage of a utility grid is reliably and swiftly restored, which decreased due to a utility grid failure or the like, to reference voltage. A generator is connected to a utility grid. A voltage detecting section detects voltage of a utility grid. A control section determines reactive current corresponding to the voltage obtained from the voltage detecting section based on voltage current correlation information in which the voltage of the utility grid and the reactive current to be supplied to the utility grid are correlated with each other. An electric power converting section regulates the reactive current to be supplied to or absorbed from the utility grid. An information changing section changes the voltage current correlation information to increase an amount of the reactive current with respect to a variation in the voltage in the voltage current correlation information, in the case where the voltage of the utility grid is not in a predetermined range set in advance after a predetermined time period has passed since the voltage of the utility grid varied by a predetermined amount.

摘要翻译： 公用电网的电压可靠且迅速地恢复，由于公用电网故障等而降低到参考电压。 发电机连接到公用电网。 电压检测部检测公用电网的电压。 控制部基于电力电流相关信息来确定与从电压检测部获得的电压对应的无功电流，其中公用电网的电压和供给到公用电网的无功电流彼此相关。 电力转换部分调节供电给电网或从公用电网吸收的无功电流。 在公用电网的电压不在预定范围内的情况下，信息改变部分改变电压电流相关信息以增加相对于电压电流相关信息中的电压变化的无功电流量 在公用电网的电压变化预定量之后经过预定时间段之后，预先提前。

公开(公告)号：US08108080B2

公开(公告)日：2012-01-31

申请号：US12903291

申请日：2010-10-13

申请人： Daisuke Wakata ,  Akira Yasugi

发明人： Daisuke Wakata ,  Akira Yasugi

IPC分类号： G05D3/12 ,  G05D5/00 ,  G05D9/00 ,  G05D11/00 ,  G05D17/00 ,  F03D9/00 ,  H02P9/04

CPC分类号： F03D7/0284 ,  F03D7/0292 ,  F03D7/048 ,  F05B2260/821 ,  F05B2270/331 ,  F05B2270/334 ,  F05B2270/337 ,  H02J3/386 ,  Y02E10/723 ,  Y02E10/763

摘要： It is an object to reduce influence on a utility grid by reducing a rapid change in active power, and to extend the life of a wind power plant while controlling active power output in response to a request from the utility grid. A monitoring and control apparatus applied to a wind power plant including a plurality of wind turbine generators includes an electric power control unit that controls the wind turbine generators so as to reduce output of the wind power plant in a stepwise manner, when an active power reduction request from a utility grid side is output.

摘要翻译： 目的是通过减少有功功率的快速变化来减少对公用电网的影响，同时延长风力发电厂的使用寿命，同时根据公用电网的要求控制有功功率输出。 应用于包括多个风力涡轮发电机的风力发电设备的监视和控制装置包括：电力控制单元，其控制风力涡轮发电机，以便当有功功率降低时以逐步的方式减少风力发电厂的输出 输出公用电网侧的请求。

公开(公告)号：US08084892B2

公开(公告)日：2011-12-27

申请号：US12926721

申请日：2010-12-07

申请人： Akira Yasugi

发明人： Akira Yasugi

IPC分类号： H01H83/12 ,  H01H47/00

CPC分类号： H02J3/386 ,  H02J3/005 ,  Y02E10/763 ,  Y10T307/406 ,  Y10T307/461 ,  Y10T307/549 ,  Y10T307/696 ,  Y10T307/707 ,  Y10T307/724 ,  Y10T307/729 ,  Y10T307/735 ,  Y10T307/826 ,  Y10T307/852 ,  Y10T307/858

摘要： An object is to provide a duplex power supply for auxiliary machines. A power supply device includes a switching section that is connected to a direct-current link between a generator-side inverter and a grid-side inverter via an auxiliary machine power inverter for converting direct-current power supplied from the direct-current link into alternating-current power to form a first path, that is connected somewhere between a power-converting section and a utility grid to form a second path, and that is connected to auxiliary machines to form a third path, and the switching section switches between connection of the third path to the first path and connection of the third path to the second path.