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公开(公告)号：US20090008937A1
公开(公告)日：2009-01-08
申请号：US12058461
申请日：2008-03-28
CPC分类号： H02P9/105 , H02P2101/15
摘要： The disclosure details implementations of apparatuses, methods, and systems for regulating DC bus voltages. In an implementation, the system is configured to regulate the DC bus voltage directly by operating at the DC bus rather than indirectly on the AC side of the DC bus. In one implementation, the DC voltage regulator is configured with components including a DC voltage regulator power control board, a switching device, a resistor, and a flyback diode. In one non-limiting implementation example, the DC voltage regulator may be used to control the DC bus voltage of a doubly fed induction generator of a wind turbine. In this implementation, the DC voltage regulator effectively protects the converter of the induction generator and also reduces the transient torques on the generator shaft during voltage irregularities. This, in turn, reduces excessive wear on the wind turbine gearbox by limiting fatigue loads on the gear teeth that may result from transient torques.
摘要翻译： 本公开详细描述了用于调节DC总线电压的装置，方法和系统的实现。 在一个实现中，该系统被配置为通过在DC总线上操作而不是间接地在DC总线的AC侧直接调节DC总线电压。 在一个实施方案中，直流稳压器配置有包括直流稳压器功率控制板，开关器件，电阻器和回扫二极管的组件。 在一个非限制性实施例中，DC电压调节器可用于控制风力涡轮机的双馈感应发电机的DC总线电压。 在这种实现中，直流电压调节器有效地保护感应发电机的转换器，并且还可以在电压不规则的情况下降低发电机轴上的瞬态转矩。 这又通过限制可能由瞬时扭矩引起的齿轮齿上的疲劳载荷来减少风力涡轮机齿轮箱上的过度磨损。
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2.发明申请SYSTEMS AND METHODS FOR SYNCHRONOUS SPEED AVOIDANCE IN DOUBLY-FED INDUCTION GENERATORS 有权双相感应发生器同步速度避免的系统与方法公开(公告)号：US20090008938A1
公开(公告)日：2009-01-08
申请号：US12129543
申请日：2008-05-29
IPC分类号： H02P9/04
CPC分类号： H02P9/007 , H02P29/68 , H02P2101/15
摘要： The disclosure details implementations of apparatuses, methods, and systems for facilitating efficient operational characteristics for wind turbine generators. The system includes features that facilitate protecting the power semiconductors used in the power converters of variable speed power generation systems from excessive junction temperatures. These features may be achieved by implementing a synchronous speed avoidance (SSA) controller implemented to facilitate a determined active control range as an electrical torque/power-generator rotor speed controller. The determined active control range may be centered around a generator synchronous speed. The upper and lower bounds of the active control range are determined based on operational junction temperature characteristics of power semiconductors used within a power converter, reliability characteristics of the power semiconductors and/or current ratings of the power semiconductors.
摘要翻译： 本公开详细描述了用于促进风力涡轮发电机的有效操作特性的装置，方法和系统的实现。 该系统包括有助于保护变速发电系统的电力转换器中使用的功率半导体免受过多结温的特征。 这些特征可以通过实现实现为便于确定的主动控制范围作为电力转矩/发电机转子速度控制器的同步速度避免（SSA）控制器来实现。 确定的主动控制范围可以围绕发电机同步速度居中。 主动控制范围的上限和下限根据功率转换器内使用的功率半导体的运行结温特性，功率半导体的可靠性特性和/或功率半导体的电流额定值来确定。
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公开(公告)号：US08520417B2
公开(公告)日：2013-08-27
申请号：US12058461
申请日：2008-03-28
IPC分类号： H02M5/45
CPC分类号： H02P9/105 , H02P2101/15
摘要： The disclosure details implementations of apparatuses, methods, and systems for regulating DC bus voltages. In an implementation, the system is configured to regulate the DC bus voltage directly by operating at the DC bus rather than indirectly on the AC side of the DC bus. In one implementation, the DC voltage regulator is configured with components including a DC voltage regulator power control board, a switching device, a resistor, and a flyback diode. In one non-limiting implementation example, the DC voltage regulator may be used to control the DC bus voltage of a doubly fed induction generator of a wind turbine. In this implementation, the DC voltage regulator effectively protects the converter of the induction generator and also reduces the transient torques on the generator shaft during voltage irregularities. This, in turn, reduces excessive wear on the wind turbine gearbox by limiting fatigue loads on the gear teeth that may result from transient torques.
摘要翻译： 本公开详细描述了用于调节DC总线电压的装置，方法和系统的实现。 在一个实现中，该系统被配置为通过在DC总线上操作而不是间接地在DC总线的AC侧直接调节DC总线电压。 在一个实施方案中，直流稳压器配置有包括直流稳压器功率控制板，开关器件，电阻器和回扫二极管的组件。 在一个非限制性实施例中，DC电压调节器可用于控制风力涡轮机的双馈感应发电机的DC总线电压。 在这种实现中，直流电压调节器有效地保护感应发电机的转换器，并且还可以在电压不规则的情况下降低发电机轴上的瞬态转矩。 这又通过限制可能由瞬时扭矩引起的齿轮齿上的疲劳载荷来减少风力涡轮机齿轮箱上的过度磨损。
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4.发明授权公开(公告)号：US08035240B2
公开(公告)日：2011-10-11
申请号：US12129543
申请日：2008-05-29
CPC分类号： H02P9/007 , H02P29/68 , H02P2101/15
摘要： The disclosure details implementations of apparatuses, methods, and systems for facilitating efficient operational characteristics for wind turbine generators. The system includes features that facilitate protecting the power semiconductors used in the power converters of variable speed power generation systems from excessive junction temperatures. These features may be achieved by implementing a synchronous speed avoidance (SSA) controller implemented to facilitate a determined active control range as an electrical torque/power-generator rotor speed controller. The determined active control range may be centered around a generator synchronous speed. The upper and lower bounds of the active control range are determined based on operational junction temperature characteristics of power semiconductors used within a power converter, reliability characteristics of the power semiconductors and/or current ratings of the power semiconductors.
摘要翻译： 本公开详细描述了用于促进风力涡轮发电机的有效操作特性的装置，方法和系统的实现。 该系统包括有助于保护变速发电系统的电力转换器中使用的功率半导体免受过多结温的特征。 这些特征可以通过实现实现为便于确定的主动控制范围作为电力转矩/发电机转子速度控制器的同步速度避免（SSA）控制器来实现。 确定的主动控制范围可以围绕发电机同步速度居中。 主动控制范围的上限和下限根据功率转换器内使用的功率半导体的运行结温特性，功率半导体的可靠性特性和/或功率半导体的电流额定值来确定。
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公开(公告)号：US06420795B1
公开(公告)日：2002-07-16
申请号：US09640503
申请日：2000-08-16
申请人： Amir S. Mikhail , Craig L. Christenson , Kevin L. Cousineau , William L. Erdman , William E. Holley
发明人： Amir S. Mikhail , Craig L. Christenson , Kevin L. Cousineau , William L. Erdman , William E. Holley
IPC分类号： H02P900
CPC分类号： H02P9/007 , F05B2270/1016 , F05B2270/706 , H02P9/42 , H02P2101/15
摘要： A variable speed system for use in systems, such as, for example, wind turbines, is described. The system comprises a wound rotor induction generator, a torque controller and a proportional, integral derivative (PID) pitch controller. The torque controller controls generator torque using field oriented control, and the PID controller performs pitch regulation based on generator rotor speed.
摘要翻译： 描述了用于诸如风力涡轮机的系统中的变速系统。 该系统包括绕线转子感应发电机，转矩控制器和比例积分微分（PID）变桨控制器。 转矩控制器使用磁场定向控制来控制发电机转矩，PID控制器根据发电机转子速度进行调速。
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公开(公告)号：US5585708A
公开(公告)日：1996-12-17
申请号：US384628
申请日：1995-02-06
IPC分类号： H02M5/458 , H02P21/00 , H02P21/06 , H02P21/14 , H02P23/00 , H02P23/06 , H02P23/14 , H02P27/06 , H02P5/40
CPC分类号： H02P27/06 , H02M5/4585 , H02P21/06 , H02P21/20 , H02P23/06 , H02P23/14 , H02P23/30 , H02P2207/01
摘要： A motor control apparatus and method is disclosed for controlling a multiphase AC motor by controlling electrical quantities such as voltage or current applied to the stator of the motor. The apparatus includes a motor command unit for defining a reference signal indicative of a desired motor parameter such as torque, speed, or position, a DC voltage link, a controller, a line-side converter including active switches in a bridge configuration for controlling the bidirectional flow of electrical power between the DC voltage link and a source of AC power, and a motor-side converter including active switches in a bridge configuration for controlling stator electrical quantities by controlling the bidirectional flow of electrical power between the DC voltage link and the motor, where the motor-side converter includes control means responsive to the reference signal for controlling the active switches to produce stator electrical quantities that correspond to the reference signal.
摘要翻译： 公开了一种电动机控制装置和方法，用于通过控制施加到电动机的定子的电压或电流等电量来控制多相交流电动机。 该装置包括用于定义表示期望的电动机参数（例如转矩，速度或位置）的参考信号的电动机命令单元，DC电压链路，控制器，包括桥式配置中的主动开关的线路侧转换器，用于控制 直流电压链路和交流电源之间的双向电力流动以及包括用于控制定子电量的桥式结构的有源开关的电动机侧转换器，其通过控制直流电压链路与直流电压链路之间的双向电力流动 马达，其中电动机侧转换器包括响应于参考信号的控制装置，用于控制有源开关以产生对应于参考信号的定子电量。
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7.发明授权
公开(公告)号：US5526252A
公开(公告)日：1996-06-11
申请号：US212511
申请日：1994-03-11
申请人： William L. Erdman
发明人： William L. Erdman
IPC分类号： H02J3/06 , H02M7/5395
摘要： A utility feedback filter for a self-commutated, pulse-width modulated power electronic converter. A feedback node is coupled to detect the utility current which is then utilized in a feedback loop through a feedback circuit. The feedback processed utility current is summed with the requested utility current, and the difference is used to generate a pulse-width modulation pattern. The damping factor can be adjusted by the feedback circuit, which preferably has a transfer function of K.sub.f +K.sub.d, where K.sub.f is a proportional feedback gain and K.sub.d is a derivative feedback gain. Utilization of the actual utility current provides precise control of the current supplied to the utility, which substantially reduces or even eliminates the high frequency harmonic components. Furthermore, by proper choice of the components in the feedback circuit, the resistive value of a damping resistor can be decreased, thereby reducing wasteful dissipation of power.
摘要翻译： 用于自换向脉冲宽度调制电力电子转换器的效用反馈滤波器。 反馈节点被耦合以检测公用电流，然后通过反馈电路在反馈环路中使用。 反馈处理的公用事业电流与所请求的有用电流相加，差值用于产生脉宽调制模式。 阻尼因子可以通过反馈电路进行调整，反馈电路优选具有Kf + Kd的传递函数，其中Kf是比例反馈增益，Kd是微分反馈增益。 实际电力电流的利用提供对供电公用电力的电流的精确控制，这大大降低甚至消除了高频谐波分量。 此外，通过适当选择反馈电路中的组件，可以减小阻尼电阻的电阻值，从而减少浪费的功率耗散。
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公开(公告)号：US08952563B2
公开(公告)日：2015-02-10
申请号：US14060463
申请日：2013-10-22
申请人： William R. Peitzke , Matthew B. Brown , William L. Erdman , Robert T. Scott , William H. Moorhead , Douglas C. Blodgett , David I. Scott
发明人： William R. Peitzke , Matthew B. Brown , William L. Erdman , Robert T. Scott , William H. Moorhead , Douglas C. Blodgett , David I. Scott
CPC分类号： H02J15/00 , B60L7/10 , B60L11/1842 , B60L2200/26 , B60L2210/30 , B60L2210/40 , B60L2220/14 , B61C3/00 , B61C17/06 , Y02E60/721 , Y02T10/646 , Y02T10/7005 , Y02T10/7072 , Y02T10/7088 , Y02T10/7241 , Y02T10/92 , Y02T30/18 , Y02T90/121 , Y02T90/127 , Y02T90/128 , Y02T90/14 , Y02T90/163 , Y04S10/126
摘要： A potential energy storage system incorporating multiple track mounted shuttle units having motor/generator drive bogies and structure with an integral transfer mechanism for removably carrying energy storage masses from a first lower elevation storage yard to a second higher elevation storage yard employing excess energy from the electrical grid driving the motors, removing the masses in the second storage yard for energy storage, retrieving the masses and returning the masses from the second storage yard to the first storage yard recovering electrical energy through the generators.
摘要翻译： 一种潜在的能量存储系统，其包括具有马达/发电机驱动转向架的多个轨道安装的梭单元和具有用于从第一较低高度存储场地向第二较高高度存储场地移除地承载储能物质的整体转移机构的结构，其使用来自电气的多余能量 驱动电动机，移除第二堆场中的质量用于储能，取出质量并将质量从第二储存场返回到通过发生器回收电能的第一储存场。
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公开(公告)号：US07071579B2
公开(公告)日：2006-07-04
申请号：US10458588
申请日：2003-06-09
CPC分类号： F03D7/0284 , F03D7/048 , F05B2260/96 , Y02E10/723
摘要： An approach to wind farm design using variable speed wind turbines with low pulse number electrical output. The output of multiple wind turbines are aggregated to create a high pulse number electrical output at a point of common coupling with a utility grid network. Power quality at each individual wind turbine falls short of utility standards, but the aggregated output at the point of common coupling is within acceptable tolerances for utility power quality. The approach for aggregating low pulse number electrical output from multiple wind turbines relies upon a pad mounted transformer at each wind turbine that performs phase multiplication on the output of each wind turbine. Phase multiplication converts a modified square wave from the wind turbine into a 6 pulse output. Phase shifting of the 6 pulse output from each wind turbine allows the aggregated output of multiple wind turbines to be a 24 pulse approximation of a sine wave. Additional filtering and VAR control is embedded within the wind farm to take advantage of the wind farm's electrical impedence characteristics to further enhance power quality at the point of common coupling.
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公开(公告)号：US5083039A
公开(公告)日：1992-01-21
申请号：US649567
申请日：1991-02-01
IPC分类号： F03D7/02 , F03D7/04 , F03D9/00 , H02J3/18 , H02J3/40 , H02P9/00 , H02P9/04 , H02P9/42 , H02P9/48 , H02P21/00 , H02P21/06
CPC分类号： F03D7/0272 , F03D7/0276 , F03D7/042 , F03D9/003 , H02J3/1842 , H02J3/1892 , H02J3/38 , H02J3/386 , H02J3/40 , H02P21/06 , H02P9/04 , H02P9/42 , H02P9/48 , F05B2220/706 , F05B2220/7064 , F05B2270/1016 , F05B2270/1032 , F05B2270/104 , F05B2270/20 , F05B2270/327 , F05B2270/328 , F05B2270/335 , H02M2007/53876 , H02P2101/15 , Y02E10/563 , Y02E10/723 , Y02E10/725 , Y02E10/763 , Y02E40/22
摘要： A variable speed wind turbine is disclosed comprising a turbine rotor that drives an AC induction generator, a power converter that converts the generator output to fixed-frequency AC power, a generator controller, and an inverter controller. The generator controller uses field orientation to regulate either stator currents or voltages to control the torque reacted by the generator. The inverter controller regulates the output currents to supply multi-phase AC power having leading or lagging currents at an angle specified by a power factor control signal.
摘要翻译： 公开了一种变速风力涡轮机，其包括驱动AC感应发电机的涡轮转子，将发电机输出转换为固定频率AC电力的功率转换器，发电机控制器和逆变器控制器。 发电机控制器使用场定向来调节定子电流或电压以控制发电机反应的转矩。 逆变器控制器调节输出电流以提供具有由功率因数控制信号指定的角度的前导或滞后电流的多相AC电力。
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