公开(公告)号：US06339309B1

公开(公告)日：2002-01-15

申请号：US09453408

申请日：1999-12-03

申请人： Paul Scott Bixel ,  Craig William Moyer ,  David Gray Roberson, Jr. ,  Barry Earle Dick

发明人： Paul Scott Bixel ,  Craig William Moyer ,  David Gray Roberson, Jr. ,  Barry Earle Dick

IPC分类号： H02P124

CPC分类号： H02P1/24

摘要： A method and apparatus for switching an AC motor between two power supplies such as supply mains and a variable frequency AC motor drive. In a transfer procedure, the motor drive is coupled to the motor to power the motor. When the supply main is connected to the motor, a resulting current spike in the output of the motor drive is detected to disconnect the motor drive from the motor very quickly while limiting current. In a capture procedure, both power supplies are coupled to the motor with the motor drive in an idle mode. When the supply mains are disconnected from the motor, the voltage change in the output of the motor drive is detected to quickly activate the motor drive to power the motor.

摘要翻译： 一种用于在诸如电源和可变频率AC电动机驱动的两个电源之间切换AC电动机的方法和装置。 在传送过程中，马达驱动器耦合到马达以为马达供电。 当电源主机连接到电机时，检测到电机驱动器输出中产生的电流尖峰，以极大的电流非常快速地将电机驱动器与电机断开。 在捕获过程中，两个电源都耦合到马达，电机驱动器处于空闲模式。 当电源与电机断开连接时，检测到电机驱动器的输出电压变化，以快速启动电机驱动器为电机供电。

公开(公告)号：US06384565B1

公开(公告)日：2002-05-07

申请号：US09455470

申请日：1999-12-06

申请人： Paul Scott Bixel ,  Richard William Carter ,  Barry Earle Dick

发明人： Paul Scott Bixel ,  Richard William Carter ,  Barry Earle Dick

IPC分类号： H02P146

CPC分类号： H02P23/0077

摘要： A method and apparatus for deriving characteristics of a utility signal for synchronizing the output of a motor drive with the utility for a transfer or capture operation. With the drive in idle, the voltage and phase angle of an input to the drive are detected by instrumentation of the drive. The voltage and phase angle of a signal from a utility are detected by instrumentation of the drive at the output of the drive. A phase angle difference and scaling factor are determined to correlate the input signal to the motor drive with the signal at the output of the motor drive. The phase angle difference and scaling factor are stored and subsequently used to derive the signal at the motor due to the utility at the time of the transfer or capture procedure.

摘要翻译： 用于导出用于使电动机驱动器的输出与用于传送或捕获操作的实用程序同步的效用信号的特性的方法和装置。 在驱动器处于空闲状态时，通过驱动器的检测来检测驱动器输入的电压和相位角。 来自公用事业的信号的电压和相位角通过驱动器输出端的驱动器的检测来检测。 确定相位角差和缩放因子以将输入信号与电动机驱动器的电动机驱动器的输出端的信号相关联。 相位角差和比例因子被存储并随后用于由于在传送或捕获过程时的效用而导出电机处的信号。

公开(公告)号：US5907192A

公开(公告)日：1999-05-25

申请号：US871171

申请日：1997-06-09

申请人： James Patrick Lyons ,  Albert Andreas Maria Esser ,  Paul Scott Bixel

发明人： James Patrick Lyons ,  Albert Andreas Maria Esser ,  Paul Scott Bixel

IPC分类号： F03D7/02 ,  H02J9/06 ,  H02P9/04 ,  F03D9/00

CPC分类号： F03D7/0268 ,  F03D7/0224 ,  F03D7/0244 ,  H02J9/062 ,  H02P9/04 ,  F05B2270/1016 ,  H02P2101/15 ,  Y02B10/72 ,  Y02E10/723 ,  Y02E10/766

摘要： Stored rotational energy in an operating variable speed wind turbine is used to pitch blades and brake the wind turbine in the event of utility power grid failure. In one embodiment, a generator IGBT converter and the main power utility grid IGBT converter supply control and pitch servo power during turbine deceleration, and a ride-through capacitor on a DC emergency power supply bus and the main DC link capacitor provide additional energy storage. In another embodiment, a step-down DC/DC power converter adds to the intermediate DC link of the power conversion system with the secondary of the step down converter powering both the hub pitch controller and the wind turbine control system.

摘要翻译： 在运行变频风力发电机中存储旋转能量用于在发生公用电网故障的情况下对叶片进行俯仰并制动风力涡轮机。 在一个实施例中，发电机IGBT转换器和主电力公用电网IGBT转换器在涡轮减速期间提供控制和俯仰伺服功率，以及在直流应急电源总线和主直流链路电容器上的直通电容器提供额外的能量存储。 在另一个实施例中，降压式DC / DC功率转换器将功率转换系统的中间直流链路加载到降压转换器的二次侧，为轮毂桨距控制器和风力涡轮机控制系统两者供电。