-
公开(公告)号：US20110112697A1
公开(公告)日：2011-05-12
申请号：US12674539
申请日：2007-12-14
IPC分类号： H02P9/00
CPC分类号： F03D7/048 , F03D7/0284 , H02J3/16 , H02J3/386 , H02P23/26 , H02P2201/15 , Y02E10/723 , Y02E10/763 , Y02E40/34
摘要： An object is to improve the accuracy of reactive power adjustment. Reactive-power command values corresponding to individual wind turbines are determined by correcting a predetermined reactive-power command value for an interconnection node A using reactive power correction levels set for the individual wind turbines.
摘要翻译： 目的是提高无功功率调整的精度。 通过使用针对各个风力涡轮机设定的无功功率校正水平来校正互连节点A的预定无功功率指令值来确定与各个风力涡轮机对应的无功功率指令值。
-
公开(公告)号：US20100213712A1
公开(公告)日：2010-08-26
申请号：US12674550
申请日：2007-12-14
IPC分类号： H02P9/04
CPC分类号： H02J3/48 , H02J3/386 , H02J3/50 , Y02E10/725 , Y02E10/763
摘要： An object is to improve the operating rate. A first switch is provided in a power line connecting a power generator to a power system, and a second switch that can be opened and closed by remote control is provided in the power line between the power generator and the first switch. In the second switch, a withstand current capability is set that allows current flowing in a low-voltage event and that withstands current having a value equal to or less than a current value specified by the thermal setting of the power generator. In the first switch, a withstand current capability is set that is superior to the withstand current capability of the second switch and that withstands current having a value equal to or less than the current value specified by the thermal setting of the power generator.
摘要翻译： 一个目标是提高运行率。 第一开关设置在将发电机连接到电力系统的电力线路中，并且在发电机和第一开关之间的电力线路中设置有可以通过远程控制来打开和关闭的第二开关。 在第二开关中，设定耐电流能力，其允许电流在低电压事件中流动，并且能够承受具有等于或小于由发电机的热设定指定的电流值的电流。 在第一开关中，设定耐受电流能力优于第二开关的耐电流能力，并且能够承受具有等于或小于由发电机的热设定指定的电流值的电流的电流。
-
公开(公告)号：US20110193345A1
公开(公告)日：2011-08-11
申请号：US13058694
申请日：2009-02-20
IPC分类号： H02P9/04
CPC分类号： H02P9/007 , F03D7/0224 , F03D7/0284 , F05B2270/10711 , F05B2270/32 , F05B2270/321 , H02H3/093 , H02H7/30 , H02P29/032 , H02P2101/15 , Y02E10/723
摘要： An object is to provide a wind turbine generator that is capable of continuously operating an auxiliary unit even when a grid fault occurs. Provided is a wind turbine generator including an auxiliary-unit breaker provided in a power line that connects an auxiliary unit to a power grid, wherein the auxiliary-unit breaker has a current-resisting capacity within a range that tolerates a current that flows in a low-voltage event and does not exceed a tolerable current of a motor provided in the auxiliary unit.
摘要翻译： 目的是提供即使在发生电网故障时能够连续地操作辅助单元的风力涡轮发电机。 提供了一种风力涡轮发电机，其包括设置在将辅助单元连接到电网的电力线路中的辅助单元断路器，其中辅助单元断路器具有在容许在一个电网中流动的电流的范围内的耐电流能力 低电压事件，并且不超过设置在辅助单元中的电动机的容许电流。
-
公开(公告)号：US08796872B2
公开(公告)日：2014-08-05
申请号：US13058694
申请日：2009-02-20
IPC分类号： H02P9/00
CPC分类号： H02P9/007 , F03D7/0224 , F03D7/0284 , F05B2270/10711 , F05B2270/32 , F05B2270/321 , H02H3/093 , H02H7/30 , H02P29/032 , H02P2101/15 , Y02E10/723
摘要： An object is to provide a wind turbine generator that is capable of continuously operating an auxiliary unit even when a grid fault occurs. Provided is a wind turbine generator including an auxiliary-unit breaker provided in a power line that connects an auxiliary unit to a power grid, wherein the auxiliary-unit breaker has a current-resisting capacity within a range that tolerates a current that flows in a low-voltage event and does not exceed a tolerable current of a motor provided in the auxiliary unit.
摘要翻译： 目的是提供即使在发生电网故障时能够连续地操作辅助单元的风力涡轮发电机。 提供了一种风力涡轮发电机，其包括设置在将辅助单元连接到电网的电力线路中的辅助单元断路器，其中辅助单元断路器具有在容许在一个电网中流动的电流的范围内的耐电流能力 低电压事件，并且不超过设置在辅助单元中的电动机的容许电流。
-
公开(公告)号：US07709972B2
公开(公告)日：2010-05-04
申请号：US11896152
申请日：2007-08-30
CPC分类号： F03D7/0224 , F03D9/255 , F03D15/10 , F05B2270/107 , F05B2270/10711 , Y02E10/723
摘要： A wind turbine system is provided with a wind turbine rotor, a pitch control mechanism, and an emergency power supply mechanism. The wind turbine rotor includes a blade having a variable pitch angle. The pitch control mechanism drives the blade to control the pitch angle. The emergency power supply mechanism generates electric power from rotation of the wind turbine rotor and feeds the electric power to the pitch control mechanism, in response to occurrence of an accidental drop of a system voltage of a power grid.
摘要翻译： 风力涡轮机系统设置有风力涡轮机转子，俯仰控制机构和应急供电机构。 风力涡轮机转子包括具有可变桨距角的叶片。 俯仰控制机构驱动叶片以控制桨距角。 响应于电网的系统电压的意外下降的发生，应急电源机构从风力涡轮机转子的旋转产生电力并将电力馈送到俯仰控制机构。
-
公开(公告)号：US07982327B2
公开(公告)日：2011-07-19
申请号：US12916196
申请日：2010-10-29
CPC分类号： F03D7/043 , F03D7/0224 , F03D7/0272 , F03D7/028 , F05B2270/321 , F05B2270/327 , F05B2270/706 , H02P9/04 , H02P2101/15 , Y02E10/723
摘要： A wind turbine generator system includes: a wind turbine rotor including a blade having a variable pitch angle; a generator driven by the wind turbine rotor; and a control unit controlling the output power of the generator and the pitch angle of the blade in response to the rotational speed of the wind turbine rotor or the generator. The control unit performs a first control in which the output power is controlled in accordance with a predetermined power-rotational speed curve until the rotational speed is increased to reach a predetermined rated rotational speed, and performs a second control in which the output power is controlled to a predetermined rated power when the rotational speed exceeds the rated rotational speed; the control unit is responsive to the pitch angle for maintaining a state of performing the second control is or for switching to a state of performing the first control, when the rotational speed is reduced below the rated rotational speed after the control unit is once placed into the state of performing the second control.
摘要翻译： 风力涡轮发电机系统包括：风力涡轮机转子，其包括具有可变桨距角的叶片; 由风力涡轮机转子驱动的发电机; 以及控制单元，其响应于风力涡轮机转子或发电机的转速控制发电机的输出功率和叶片的俯仰角。 控制单元执行第一控制，其中根据预定的功率 - 转速曲线来控制输出功率，直到转速增加达到预定的额定转速，并执行输出功率被控制的第二控制 当转速超过额定转速时达到预定的额定功率; 控制单元响应于俯仰角以保持执行第二控制的状态，或者为了切换到执行第一控制的状态，当控制单元一旦被放置到转速之后，当转速降低到额定转速以下时 执行第二控制的状态。
-
17.发明申请公开(公告)号：US20100301606A1
公开(公告)日：2010-12-02
申请号：US12745155
申请日：2008-06-18
IPC分类号： H02P9/04
CPC分类号： F03D7/045 , F03D7/046 , F05B2270/32 , Y02E10/723
摘要： It is an object to enable stable operation of a wind turbine and to change a control parameter of the wind turbine at an appropriate timing. A dynamic-characteristics model of a wind turbine is identified for each of a plurality of ranges that are determined in accordance with wind speed, and the identified dynamic-characteristics model is monitored for each of the ranges.
摘要翻译： 本发明的目的是使风力涡轮机能够稳定运行并且在适当的时刻改变风力涡轮机的控制参数。 针对根据风速确定的多个范围中的每一个，识别风力涡轮机的动态特性模型，并且针对每个范围监视所识别的动态特性模型。
-
公开(公告)号：US20100237618A1
公开(公告)日：2010-09-23
申请号：US12801133
申请日：2010-05-25
CPC分类号： F03D7/042 , F03D7/0224 , F03D7/0276 , F03D7/028 , F05B2220/7064 , F05B2270/1033 , F05B2270/304 , F05B2270/32 , F05B2270/321 , F05B2270/322 , F05B2270/327 , F05B2270/705 , H02P9/48 , H02P2101/15 , Y02E10/723 , Y02E10/725
摘要： A wind power generator system includes a windmill rotor including a blade whose pitch angle is variable; a generator driven by the windmill rotor; and a control unit controlling output power of the generator and the pitch angle of the blade. The control unit performs a first control in which the output power is controlled in accordance with a predetermined power-rotational speed curve until the rotational speed is increased to reach a predetermined rated rotational speed, and a second control in which the output power is controlled to a predetermined rated power when the rotational speed exceeds the rated rotational speed. The control unit is responsive to the pitch angle for maintaining the second control or for switching to the first control, when the rotational speed is reduced below the rated rotational speed after the control unit is once placed into the state of performing the second control.
摘要翻译： 风力发电机系统包括风车转子，其包括桨距角可变的叶片; 由风车转子驱动的发电机; 以及控制发电机的输出功率和叶片的俯仰角的控制单元。 控制单元执行第一控制，其中根据预定的功率 - 转速曲线来控制输出功率，直到旋转速度增加到达预定的额定转速为止，以及第二控制，其中输出功率被控制到 当转速超过额定转速时，预定的额定功率。 当控制单元一旦被置于执行第二控制的状态之后，当转速降低到额定转速以下时，控制单元响应于俯仰角度来维持第二控制或切换到第一控制。
-
公开(公告)号：US08502406B2
公开(公告)日：2013-08-06
申请号：US13549995
申请日：2012-07-16
IPC分类号： F03D9/00
CPC分类号： H02P9/48 , F03D7/0272 , F03D7/028 , F03D7/042 , F05B2270/1016 , H02J3/1892 , H02J3/382 , H02J3/386 , H02P9/04 , H02P2101/15 , Y02E10/723 , Y02E10/725 , Y02E10/763
摘要： A variable-speed power generator includes a prime mover that generates motive power by using natural energy; a wound-rotor induction generator that includes a stator having a primary winding and a rotor having a secondary winding, which are connected to a power grid, the generator generating electric power based on the motive power generated by the prime mover; a power converter connected to the stator and the rotor; and a controller controlling wound-rotor induction generator. The controller responds to instructions, sent by the power grid, for supplying reactive power to the power grid. The response of the controller to an instruction for supplying reactive power to the power grid may include imposing limitations on the reactive power supplied by the power converter to the power grid and causing the wound-rotor induction generator to operate at a rotation speed set higher than or equal to a synchronous speed.
摘要翻译： 变速发电机包括通过使用自然能产生动力的原动机; 绕组转子感应发电机，其包括具有初级绕组的定子和具有次级绕组的转子，其连接到电网，所述发电机基于由所述原动机产生的动力产生电力; 连接到定子和转子的功率转换器; 以及控制绕线转子感应发电机的控制器。 控制器响应由电网发送的用于向电网提供无功功率的指令。 控制器对于向电网提供无功功率的指令的响应可能包括对功率转换器向电网提供的无功功率施加限制，并使绕组转子感应发电机以高于 或等于同步速度。
-
公开(公告)号：US08053917B2
公开(公告)日：2011-11-08
申请号：US13035141
申请日：2011-02-25
CPC分类号： H02P9/48 , F03D7/0272 , F03D7/028 , F03D7/042 , F05B2270/1016 , H02J3/1892 , H02J3/382 , H02J3/386 , H02P9/04 , H02P2101/15 , Y02E10/723 , Y02E10/725 , Y02E10/763
摘要： Reactive power is supplied in accordance with a reactive-power supply instruction from a power grid while ensuring a variable-speed range of a wound-rotor induction generator. A variable-speed power generator includes a prime mover that generates motive power by using natural energy; an electric generator that includes a stator having a primary winding and a rotor having a secondary winding, the stator and the rotor being connected to a power grid, and that generates electric power based on the motive power generated by the prime mover; and a power converter connected to the stator and the rotor, wherein the power converter does not supply reactive power to the power grid, and wherein the variable-speed power generator includes a power-converter controller that causes the electric generator to operate at a rotation speed set to be higher than or equal to a synchronous speed and increases reactive power supplied to the power grid when a reactive-power supply instruction for supplying reactive power to the power grid is obtained from the power grid.
摘要翻译： 在确保绕线转子感应发电机的可变速度范围的同时，根据来自电力网的无功电力供给指示来提供无功功率。 变速发电机包括通过使用自然能产生动力的原动机; 发电机，其包括具有初级绕组的定子和具有次级绕组的转子，所述定子和所述转子连接到电网，并且基于由所述原动机产生的动力产生电力; 以及连接到所述定子和所述转子的功率转换器，其中所述功率转换器不向所述电网提供无功功率，并且其中所述变速功率发生器包括功率转换器控制器，所述功率转换器控制器使所述发电机在旋转 速度设定为高于或等于同步速度，并且当从电网获得用于向电网提供无功功率的无功电力指令时，增加供给电网的无功功率。
-
-
-
-
-
-
-
-
-
搜索结果
44 条记录 (耗时 0.024 秒)
