公开(公告)号：USRE43698E1

公开(公告)日：2012-10-02

申请号：US12855168

申请日：2004-05-03

Applicant: Raymond M. Hudson

Inventor： Raymond M. Hudson

IPC: H02P9/44

CPC classification number: F03D7/0272 ,  F03D9/255 ,  F05B2270/107 ,  F05B2270/337 ,  H02P9/007 ,  H02P9/102 ,  H02P9/46 ,  H02P27/05 ,  H02P2101/15 ,  Y02E10/723

Abstract: A controller (28) for a doubly fed induction generator (12,20) adjusts control signals to a rotor side converter (24) and line side converter (22) to adjust rotor current when a voltage transient on a utility grid (10) occurs, so that the doubly fed induction generator can ride through the transient. The controller can also turn off the transistors of the rotor side converter (24) to reduce rotor current and/or activate a crowbar (42) to reduce the voltage of the DC link (26) connecting the converters (22, 24) when significant voltage transients occur on the grid (10). This permits continued operation of the DFIG system without disconnecting from the grid.

Abstract translation: 用于双馈感应发电机（12,20）的控制器（28,20）在对公用电网（10）的电压瞬变发生时调节到转子侧转换器（24）和线路侧转换器（22）的调节信号，以调节转子电流 ，使得双馈感应发电机可以穿过瞬变。 控制器还可以关闭转子侧转换器（24）的晶体管，以减少转子电流和/或激活撬棒（42），以便在显着的时候降低连接转换器（22,24）的DC链路（26）的电压 电压瞬变发生在电网（10）上。 这允许DFIG系统的继续运行，而不断开电网。

公开(公告)号：US07411309B2

公开(公告)日：2008-08-12

申请号：US10554891

申请日：2004-05-03

Applicant: Raymond M. Hudson

Inventor： Raymond M. Hudson

IPC: H02P9/44

CPC classification number: F03D7/0272 ,  F03D9/255 ,  F05B2270/107 ,  F05B2270/337 ,  H02P9/007 ,  H02P9/102 ,  H02P9/46 ,  H02P27/05 ,  H02P2101/15 ,  Y02E10/723

Abstract: A controller (28) for a doubly fed induction generator (12,20) adjusts control signals to a rotor side converter (24) and line side converter (22) to adjust rotor current when a voltage transient on a utility grid (10) occurs, so that the doubly fed induction generator can ride through the transient. The controller can also turn off the transistors of the rotor side converter (24) to reduce rotor current and/or activate a crowbar (42) to reduce the voltage of the DC link (26) connecting the converters (22, 24) when significant voltage transients occur on the grid (10). This permits continued operation of the DFIG system without disconnecting from the grid.

Abstract translation: 用于双馈感应发电机（12,20）的控制器（28,20）在对公用电网（10）的电压瞬变发生时调节到转子侧转换器（24）和线路侧转换器（22）的调节信号，以调节转子电流 ，使得双馈感应发电机可以穿过瞬变。 控制器还可以关闭转子侧转换器（24）的晶体管，以减少转子电流和/或激活撬棒（42），以便在显着的时候降低连接转换器（22,24）的DC链路（26）的电压 电压瞬变发生在电网（10）上。 这允许DFIG系统的继续运行，而不断开电网。

公开(公告)号：US07215035B2

公开(公告)日：2007-05-08

申请号：US11063409

申请日：2005-02-22

Applicant: Raymond M. Hudson

Inventor： Raymond M. Hudson

IPC: H02P9/00

CPC classification number: H02P9/48 ,  F03D9/255 ,  H02J3/386 ,  H02P2101/15 ,  Y02E10/725 ,  Y02E10/763

Abstract: A method and apparatus for converting wind generated electricity to constant frequency electricity for supplying it to a utility grid. use a wind turbine generator having a doubly fed induction generator. Above the synchronous speed of the generator, the electricity from the rotor is converted to direct current (dc) electricity and the de electricity is converted back to alternating current (ac) electricity at a fixed unity power factor. Below synchronous speed, electricity flows to the rotor from the utility grid also at a fixed unity power factor. The current of the ac electricity is adjusted to be in phase with the utility grid voltage, wherein the ac electricity is maintained substantially at unity power factor.

Abstract translation: 一种用于将风力发电转换为恒定频率电力以将其供应到公用电网的方法和装置。 使用具有双馈感应发电机的风力发电机。 高于发电机的同步转速，来自转子的电力转换为直流（dc）电，直流电以固定的单位功率因数转换回交流电（AC）。 在同步速度以下，电力也以固定的单位功率因数从公用电网流向转子。 交流电的电流被调整为与公用电网电压同相，其中交流电基本维持在单位功率因数。