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公开(公告)号：US20110096579A1
公开(公告)日：2011-04-28
申请号：US12956018
申请日：2010-11-30
IPC分类号： H02M7/5387
CPC分类号： H02M7/48 , H02J3/383 , H02M3/158 , H02M7/539 , H02M2001/0054 , H02M2001/007 , Y02B70/1491 , Y02E10/563 , Y10T307/352
摘要： Systems, methods, and apparatus for supplying AC power to an AC power grid from a DC power source, such as a photovoltaic (PV) array are disclosed. The systems and methods can include a converter coupled to the DC power source that provides DC power to a DC bus at a DC bus voltage. The systems and methods can further include an inverter coupled to the DC bus for converting the DC power of the DC bus to an output AC power. The systems and methods can further include a control system configured to regulate the DC bus voltage of the DC bus to operate at a variable DC bus voltage setpoint. The control system can adjust the DC bus voltage setpoint based at least in part on the DC bus voltage and the output AC current of the inverter.
摘要翻译： 公开了用于从DC电源（例如光伏（PV））阵列向交流电网提供AC电力的系统，方法和装置。 该系统和方法可以包括耦合到直流电源的转换器，其以直流总线电压向直流总线提供直流电力。 该系统和方法还可以包括耦合到DC总线的逆变器，用于将DC总线的DC电力转换成输出AC电力。 所述系统和方法还可以包括配置成调节DC总线的DC总线电压以在可变的DC总线电压设定点下工作的控制系统。 控制系统可以至少部分地基于直流母线电压和逆变器的输出交流电流来调节直流母线电压设定值。
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公开(公告)号：US08085564B2
公开(公告)日：2011-12-27
申请号：US12956018
申请日：2010-11-30
CPC分类号： H02M7/48 , H02J3/383 , H02M3/158 , H02M7/539 , H02M2001/0054 , H02M2001/007 , Y02B70/1491 , Y02E10/563 , Y10T307/352
摘要： Systems, methods, and apparatus for supplying AC power to an AC power grid from a DC power source, such as a photovoltaic (PV) array are disclosed. The systems and methods can include a converter coupled to the DC power source that provides DC power to a DC bus at a DC bus voltage. The systems and methods can further include an inverter coupled to the DC bus for converting the DC power of the DC bus to an output AC power. The systems and methods can further include a control system configured to regulate the DC bus voltage of the DC bus to operate at a variable DC bus voltage setpoint. The control system can adjust the DC bus voltage setpoint based at least in part on the DC bus voltage and the output AC current of the inverter.
摘要翻译： 公开了用于从DC电源（例如光伏（PV））阵列向交流电网提供AC电力的系统，方法和装置。 该系统和方法可以包括耦合到直流电源的转换器，其以直流总线电压向直流总线提供直流电力。 该系统和方法还可以包括耦合到DC总线的逆变器，用于将DC总线的DC电力转换成输出AC电力。 所述系统和方法还可以包括配置成调节DC总线的DC总线电压以在可变的DC总线电压设定点下工作的控制系统。 控制系统可以至少部分地基于直流母线电压和逆变器的输出交流电流来调节直流母线电压设定值。
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公开(公告)号：US07855906B2
公开(公告)日：2010-12-21
申请号：US12605514
申请日：2009-10-26
CPC分类号： H02M7/48 , H02J3/383 , H02M3/158 , H02M7/539 , H02M2001/0054 , H02M2001/007 , Y02B70/1491 , Y02E10/563 , Y10T307/352
摘要： Systems, methods, and apparatus for supplying AC power to an AC power grid from a DC power source, such as a photovoltaic (PV) array are disclosed. The systems and methods can include a converter coupled to the DC power source that provides DC power to a DC bus at a DC bus voltage. The systems and methods can further include an inverter coupled to the DC bus for converting the DC power of the DC bus to an output AC power. The systems and methods can further include a control system configured to regulate the DC bus voltage of the DC bus to operate at a variable DC bus voltage setpoint. The control system can adjust the DC bus voltage setpoint based at least in part on the DC bus voltage and the output AC current of the inverter.
摘要翻译： 公开了用于从DC电源（例如光伏（PV））阵列向交流电网提供AC电力的系统，方法和装置。 该系统和方法可以包括耦合到直流电源的转换器，其以直流总线电压向直流总线提供直流电力。 该系统和方法还可以包括耦合到DC总线的逆变器，用于将DC总线的DC电力转换成输出AC电力。 所述系统和方法还可以包括配置成调节DC总线的DC总线电压以在可变的DC总线电压设定点下工作的控制系统。 控制系统可以至少部分地基于直流母线电压和逆变器的输出交流电流来调节直流母线电压设定值。
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4.发明授权Method and systems for operating a wind turbine using dynamic braking in response to a grid event 有权使用响应于电网事件的动态制动操作风力涡轮机的方法和系统公开(公告)号：US08664788B1
公开(公告)日：2014-03-04
申请号：US13606530
申请日：2012-09-07
申请人： Robert Gregory Wagoner , Allen Michael Ritter , Einar Vaughn Larsen , Anthony Michael Klodowski , Sidney Allen Barker
发明人： Robert Gregory Wagoner , Allen Michael Ritter , Einar Vaughn Larsen , Anthony Michael Klodowski , Sidney Allen Barker
CPC分类号： F03D7/0244 , F05B2260/90 , F05B2270/107 , H02J3/386 , Y02E10/723 , Y02E10/763
摘要： A method and system for dissipating energy in a direct current (dc) bus of a doubly-fed induction generator (DFIG) converter during a grid event is described. In one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at least a DFIG generator and a line side converter and a rotor side converter connected by a dc bus having a dynamic brake connected thereto; detecting an overvoltage on the dc bus or a condition indicative of an overvoltage on the dc link is detected, the overvoltage on the dc bus or condition indicative of the overvoltage caused by a grid event; and causing energy in the dc link to be dissipated using the dynamic brake.
摘要翻译： 描述了在网格事件期间在双馈感应发电机（DFIG）转换器的直流（dc）总线中耗散能量的方法和系统。 一方面，该方法包括监视电气系统的操作条件，该电气系统至少包括一个DFIG发电机和一个线路侧转换器，以及一个通过直流总线连接的转子侧转换器，该直流总线连接有动态制动器; 检测直流母线上的过电压或表示直流母线上的过电压的状态，直流母线上的过电压或指示由电网事件引起的过电压的状态; 并且使用动态制动器使直流链路中的能量消散。
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5.发明申请METHOD AND SYSTEMS FOR OPERATING A WIND TURBINE USING DYNAMIC BRAKING IN RESPONSE TO A GRID EVENT 有权使用动态制动操作风力发电机的方法和系统对电网事件的响应公开(公告)号：US20140070535A1
公开(公告)日：2014-03-13
申请号：US13606530
申请日：2012-09-07
申请人： Robert Gregory Wagoner , Allen Michael Ritter , Einar Vaughn Larsen , Anthony Michael Klodowski , Sidney Allen Barker
发明人： Robert Gregory Wagoner , Allen Michael Ritter , Einar Vaughn Larsen , Anthony Michael Klodowski , Sidney Allen Barker
CPC分类号： F03D7/0244 , F05B2260/90 , F05B2270/107 , H02J3/386 , Y02E10/723 , Y02E10/763
摘要： A method and system for dissipating energy in a direct current (dc) bus of a doubly-fed induction generator (DFIG) converter during a grid event is described. In one aspect, the method comprises monitoring operating conditions of an electrical system, the electrical system comprising at least a DFIG generator and a line side converter and a rotor side converter connected by a dc bus having a dynamic brake connected thereto; detecting an overvoltage on the dc bus or a condition indicative of an overvoltage on the dc link is detected, the overvoltage on the dc bus or condition indicative of the overvoltage caused by a grid event; and causing energy in the dc link to be dissipated using the dynamic brake.
摘要翻译： 描述了在网格事件期间在双馈感应发电机（DFIG）转换器的直流（dc）总线中耗散能量的方法和系统。 一方面，该方法包括监视电气系统的操作条件，该电气系统至少包括一个DFIG发电机和一个线路侧转换器，以及一个通过直流总线连接的转子侧转换器，该直流总线连接有动态制动器; 检测直流母线上的过电压或表示直流母线上的过电压的状态，直流母线上的过电压或指示由电网事件引起的过电压的状态; 并且使用动态制动器使直流链路中的能量消散。
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公开(公告)号：US07239036B2
公开(公告)日：2007-07-03
申请号：US11192840
申请日：2005-07-29
申请人： John Douglas D'Atre , Anthony Michael Klodowski , Allen Michael Ritter , David Smith , Robert Gregory Wagoner , Luis Jose Garces , Henning Luetze
发明人： John Douglas D'Atre , Anthony Michael Klodowski , Allen Michael Ritter , David Smith , Robert Gregory Wagoner , Luis Jose Garces , Henning Luetze
IPC分类号： H02P9/04
CPC分类号： F03D7/0272 , F03D7/028 , F03D9/25 , F03D9/255 , F05B2220/7062 , F05B2260/80 , F05B2270/1011 , H02P9/007 , H02P2101/15 , Y02E10/723 , Y02E10/725
摘要： A system and method for power control in wind turbines are provided. The method includes switching a plurality of switching devices in a power conversion component of the wind turbine system in a normal switching mode to provide power flow through the power conversion component. The method further includes switching the plurality of switches devices in the power conversion component of the wind turbine system in a short circuit switching mode to prevent power flow through the power conversion component.
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7.发明申请公开(公告)号：US20140070536A1
公开(公告)日：2014-03-13
申请号：US13613410
申请日：2012-09-13
IPC分类号： H02P9/04
CPC分类号： H02P9/007 , H02P2101/15
摘要： Systems and methods for regulating voltage in a doubly fed induction generator (DFIG) system are provided. More particularly, the voltage of the auxiliary power feed in a DFIG wind turbine system can be regulated by outputting reactive power from a power converter to a reactive element coupled between the auxiliary power feed and a stator bus. The reactive element can include a winding of the transformer used to couple the wind turbine system to the electrical grid and/or an inductive element coupled between the output of the power converter and the stator bus. The voltage of the auxiliary power feed can be maintained within a reduced operating range while an increased operating range can be provided for wind turbine system
摘要翻译： 提供了用于调节双馈感应发电机（DFIG）系统中的电压的系统和方法。 更具体地说，DFIG风力涡轮机系统中的辅助供电的电压可以通过将功率从功率转换器输出到辅助供电和定子总线之间的无功元件来调节。 电抗元件可以包括用于将风力涡轮机系统耦合到电网的变压器的绕组和/或耦合在功率转换器的输出和定子总线之间的电感元件。 辅助供电的电压可以保持在减小的工作范围内，同时可以为风力涡轮机系统提供增加的工作范围
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8.发明授权公开(公告)号：US08669669B1
公开(公告)日：2014-03-11
申请号：US13613410
申请日：2012-09-13
IPC分类号： H02P9/00
CPC分类号： H02P9/007 , H02P2101/15
摘要： Systems and methods for regulating voltage in a doubly fed induction generator (DFIG) system are provided. More particularly, the voltage of the auxiliary power feed in a DFIG wind turbine system can be regulated by outputting reactive power from a power converter to a reactive element coupled between the auxiliary power feed and a stator bus. The reactive element can include a winding of the transformer used to couple the wind turbine system to the electrical grid and/or an inductive element coupled between the output of the power converter and the stator bus. The voltage of the auxiliary power feed can be maintained within a reduced operating range while an increased operating range can be provided for wind turbine system.
摘要翻译： 提供了用于调节双馈感应发电机（DFIG）系统中的电压的系统和方法。 更具体地说，DFIG风力涡轮机系统中的辅助供电的电压可以通过将功率从功率转换器输出到辅助供电和定子总线之间的无功元件来调节。 电抗元件可以包括用于将风力涡轮机系统耦合到电网的变压器的绕组和/或耦合在功率转换器的输出和定子总线之间的电感元件。 辅助供电的电压可以保持在减小的工作范围内，同时可以为风力涡轮机系统提供增加的工作范围。
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公开(公告)号：US08773873B2
公开(公告)日：2014-07-08
申请号：US13327077
申请日：2011-12-15
IPC分类号： H02M1/12
CPC分类号： H02M7/4807 , H02J3/01 , H02J3/383 , Y02E10/563 , Y02E40/40
摘要： A power conversion system for providing power to an electrical grid is described. The power conversion system includes a power converter coupled to a power source and the electrical grid. The power conversion system also includes a converter controller coupled to the power converter and configured to control operation of the power converter to actively cancel harmonic current received at the power converter from the electrical grid.
摘要翻译： 描述用于向电网提供电力的电力转换系统。 电力转换系统包括耦合到电源和电网的功率转换器。 电力转换系统还包括耦合到功率转换器并被配置为控制功率转换器的操作的转换器控制器，以从电网主动消除在功率转换器处接收的谐波电流。
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公开(公告)号：US20130077372A1
公开(公告)日：2013-03-28
申请号：US13245487
申请日：2011-09-26
IPC分类号： H02M7/537
CPC分类号： H02J3/383 , H02M2001/007 , Y02E10/563
摘要： A power conversion system for providing power to an electrical grid is described. The power conversion system includes a power converter coupled to a photovoltaic (PV) array and configured to control a PV array voltage. The power conversion system also includes a system controller communicatively coupled to the power converter and configured to select from a first reduced power operating point and a second reduced power operating point when a power available from the PV array is greater than a rated output power of the power conversion system.
摘要翻译： 描述用于向电网提供电力的电力转换系统。 功率转换系统包括耦合到光伏（PV）阵列并被配置为控制PV阵列电压的功率转换器。 所述电力转换系统还包括系统控制器，所述系统控制器通信地耦合到所述功率转换器并且被配置为当所述PV阵列的可用功率大于所述电力转换器的额定输出功率时，从第一降低功率工作点和第二降低功率工作点进行选择 电源转换系统
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