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31 条记录 (耗时 0.041 秒)

    Inverter modulator with variable switching frequency
    21.
    发明授权
    Inverter modulator with variable switching frequency 有权
    具有可变开关频率的逆变器调制器

    公开(公告)号：US08625315B2

    公开(公告)日：2014-01-07

    申请号：US12149914

    申请日：2008-05-09

    申请人： William L. Erdman ,  Jackson Moore

    发明人： William L. Erdman ,  Jackson Moore

    IPC分类号： H02M1/12 ,  H02M7/521

    CPC分类号： H02M7/5395 ,  H02J3/383 ,  H02M1/44 ,  H02M7/53875 ,  H02M2001/0054 ,  Y02B70/1491 ,  Y02E10/563

    摘要： An inverter control is used to control the output of a distributed power generating station, such as a photovoltaic (PV) solar power station, connected to a power grid. The power station is connected to an inverter output. Pulse width modulation is used to shape the output in order to maximize power output within power quality parameters and provides control of a switching frequency of the inverter responsive to a sensed parameter. The technique allows an increase in output efficiency and provides for adjustment of power output to meet power quality parameters to an extent required in order to connect to the power grid.

    摘要翻译： 逆变器控制用于控制与电网连接的诸如光伏（PV）太阳能发电站的分布式发电站的输出。 电站连接到变频器输出。 脉冲宽度调制用于对输出进行整形，以便最大化功率质量参数内的功率输出，并根据感测参数提供对逆变器开关频率的控制。 该技术允许增加输出效率并且提供功率输出的调整以将电力质量参数满足以连接到电网所需的程度。

    Networked multi-inverter maximum power-point tracking
    22.
    发明授权
    Networked multi-inverter maximum power-point tracking 有权
    网络化多逆变器最大功率点跟踪

    公开(公告)号：US08401706B2

    公开(公告)日：2013-03-19

    申请号：US12230381

    申请日：2008-08-28

    申请人： Jackson Moore ,  William L. Erdman ,  Edward Robert Nelson

    发明人： Jackson Moore ,  William L. Erdman ,  Edward Robert Nelson

    IPC分类号： G05D11/00

    CPC分类号： H02J1/12 ,  H01L31/02021 ,  H02J13/0079 ,  Y02E10/50 ,  Y02E40/72 ,  Y02E60/74 ,  Y04S10/123 ,  Y04S10/30 ,  Y10T307/549

    摘要： A group of solar power stations with inverters are adjusted in order to achieve optimum power output in accordance with maximum power-point tracking (MPPT). The MPPT data is used to perform adjustments. Power measurement factors, including Maximum Power Points (MPPs) are established to represent a bus-voltage setting that produces the maximum power output from an individual photovoltaic panel. These settings are established for the group so as to optimize power output under a variety of operating conditions.

    摘要翻译： 调整一组带有逆变器的太阳能发电站，以便根据最大功率点跟踪（MPPT）实现最佳功率输出。 MPPT数据用于执行调整。 建立功率测量因子，包括最大功率点（MPP），以表示从单个光伏面板产生最大功率输出的母线电压设置。 为组设置了这些设置，以便在各种操作条件下优化功率输出。

    DC Voltage Regulator
    23.
    发明申请
    DC Voltage Regulator 有权
    直流稳压器

    公开(公告)号：US20090008937A1

    公开(公告)日：2009-01-08

    申请号：US12058461

    申请日：2008-03-28

    申请人： William L. Erdman ,  Michael R. Behnke ,  Miguel Nunez Polo ,  Ricardo Royo Garcia

    发明人： William L. Erdman ,  Michael R. Behnke ,  Miguel Nunez Polo ,  Ricardo Royo Garcia

    IPC分类号： H02P9/10 ,  G05F1/613

    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。

    DC voltage regulator
    26.
    发明授权
    DC voltage regulator 有权
    直流稳压器

    公开(公告)号：US08520417B2

    公开(公告)日：2013-08-27

    申请号：US12058461

    申请日：2008-03-28

    申请人： William L. Erdman ,  Michael R. Behnke ,  Miguel Núñez Polo ,  Ricardo Royo Garcia

    发明人： William L. Erdman ,  Michael R. Behnke ,  Miguel Núñez Polo ,  Ricardo Royo Garcia

    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。

    HIGH VOLTAGE DIRECT CURRENT GENERATION AND TRANSMISSION BY A WIND TURBINE
    27.
    发明申请
    HIGH VOLTAGE DIRECT CURRENT GENERATION AND TRANSMISSION BY A WIND TURBINE 审中-公开
    风力发电机的高电压直流发电和传动

    公开(公告)号：US20120327693A1

    公开(公告)日：2012-12-27

    申请号：US13167037

    申请日：2011-06-23

    申请人： Kevin L. Cousineau ,  William L. Erdman ,  Peter Damon Stricker

    发明人： Kevin L. Cousineau ,  William L. Erdman ,  Peter Damon Stricker

    IPC分类号： H02J3/36 ,  H02P9/04

    CPC分类号： H02P9/48 ,  H02J3/36 ,  H02J3/386 ,  H02P2101/15 ,  Y02E10/763

    摘要： A wind turbine including a synchronous generator that converts rotary motion of a hub or rotor of the wind turbine to a variable frequency alternating current (AC) power. The wind turbine further includes a primary power system located within the wind turbine that transforms the variable frequency AC power to high voltage direct current (HVDC) power and provides the HVDC power to a load over an HVDC transmission line. A method corresponding to the flow of power through the wind turbine and a wind park comprised of a plurality of the wind turbines are also provided.

    摘要翻译： 一种风力涡轮机，包括将风力涡轮机的轮毂或转子的旋转运动转换为可变频率交流（AC）功率的同步发电机。 风力涡轮机还包括位于风力涡轮机内的主电力系统，其将可变频率AC电力转换为高压直流（HVDC）功率，并且通过HVDC传输线向负载提供HVDC功率。 还提供了对应于通过风力涡轮机的动力流动的方法和由多个风力涡轮机组成的风力发电场。

    Networked multi-inverter maximum power point tracking
    28.
    发明申请
    Networked multi-inverter maximum power point tracking 有权
    联网多逆变器最大功率点跟踪

    公开(公告)号：US20100052425A1

    公开(公告)日：2010-03-04

    申请号：US12230381

    申请日：2008-08-28

    申请人： Jackson Moore ,  William L. Erdman ,  Edward Robert Nelson

    发明人： Jackson Moore ,  William L. Erdman ,  Edward Robert Nelson

    IPC分类号： H02J1/12

    CPC分类号： H02J1/12 ,  H01L31/02021 ,  H02J13/0079 ,  Y02E10/50 ,  Y02E40/72 ,  Y02E60/74 ,  Y04S10/123 ,  Y04S10/30 ,  Y10T307/549

    摘要： A group of solar power stations with inverters are adjusted in order to achieve optimum power output in accordance with maximum power-point tracking (MPPT). The MPPT data is used to perform adjustments. Power measurement factors, including Maximum Power Points (MPPs) are established to represent a bus-voltage setting that produces the maximum power output from an individual photovoltaic panel. These settings are established for the group so as to optimize power output under a variety of operating conditions.

    摘要翻译： 调整一组带有逆变器的太阳能发电站，以便根据最大功率点跟踪（MPPT）实现最佳功率输出。 MPPT数据用于执行调整。 建立功率测量因子，包括最大功率点（MPP），以表示从单个光伏面板产生最大功率输出的总线电压设置。 为组设置了这些设置，以便在各种操作条件下优化功率输出。

    Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation
    30.
    发明授权
    Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation 失效
    具有降低功率波动和静态VAR运行模式的变速风力发电机

    公开(公告)号：US5225712A

    公开(公告)日：1993-07-06

    申请号：US799416

    申请日：1991-11-27

    申请人： William L. Erdman

    发明人： William L. Erdman

    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 wind turbine power converter is disclosed herein that smooths the output power from a variable speed wind turbine, to reduce or eliminate substantial power fluctuations on the output line. The power converter has an AC-to-DC converter connected to a variable speed generator that converts wind energy to electric energy, a DC-to-AC inverter connected to a utility grid, and DC voltage link connected to an electrical energy storage device such as a battery or a fuel cell, or a photovoltaic or solar cell. Also, an apparatus and method is disclosed herein for controlling the instantaneous current flowing through the active switches at the line side inverter to supply reactive power to the utility grid. The inverter can control reactive power output as a power factor angle, or directly as a number of VARs independent of the real power. Reactive power can be controlled in an operating mode when the wind turbine is generating power, or in a static VAR mode when the wind turbine is not operating to produce real power. To control the reactive power, a voltage waveform is used as a reference to form a current control waveform for each output phase. The current control waveform for each phase is applied to a current regulator which regulates the drive circuit that controls the currents for each phase of the inverter. Means for controlling the charge/discharge ratio and the regulating the voltage on the DC voltage link is also disclosed.

    摘要翻译： 本文公开了一种风力涡轮机功率转换器，其使来自变速风力涡轮机的输出功率平滑，以减少或消除输出线上的实质功率波动。 功率转换器具有连接到将风能转换为电能的变速发电机的AC至DC转换器，连接到公用电网的DC至AC逆变器以及连接到电能存储装置的DC电压链路 作为电池或燃料电池，或光伏或太阳能电池。 此外，本文公开了一种用于控制流过线路侧逆变器上的有源开关的瞬时电流以向公用电网提供无功功率的装置和方法。 逆变器可以将无功功率输出控制为功率因数角，或直接作为独立于有功功率的多个VAR。 当风力涡轮机正在发电时，或者当风力涡轮机不工作以产生实际功率时，可以以静态VAR模式来控制无功功率。 为了控制无功功率，使用电压波形作为参考，以形成每个输出相的电流控制波形。 每相的电流控制波形被施加到电流调节器，电流调节器调节控制逆变器每相的电流的驱动电路。 还公开了用于控制充电/放电比率和调节直流电压链路上的电压的装置。