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    • 1. 发明申请
    • System and method for pre-charging the DC bus of a utility connected power converter
    • 对连接电力变压器的直流母线进行预充电的系统和方法
    • US20050088868A1
    • 2005-04-28
    • US10813550
    • 2004-03-31
    • Michael RyanMark GilbrethKenneth KellerSimon Wall
    • Michael RyanMark GilbrethKenneth KellerSimon Wall
    • G11C19/08H02M7/06
    • H02M7/062
    • A system and method for pre-charging the DC bus of a utility connected power converter. In one embodiment, a full-wave rectifier circuit is coupled to the utility grid through an isolation transformer and circuit protector. The rectifier circuit output is connected to the DC bus of the power converter to provide a pre-charging current to the DC bus capacitors. The output from the rectifier circuit also supplies power to the control circuit power supply for the converter. When the control circuit closes the contactor of the converter system and activates the converter, the voltage across the DC bus capacitors is increased above the level of the rectified power grid voltage provided at the output of the pre-charge circuit. This reverse-biases the rectifier diodes, placing the pre-charge circuit into an inactive state. The impedance of the isolation transformer limits the in-rush current into the DC bus capacitors during the pre-charge.
    • 一种用于对连接电力转换器的直流母线进行预充电的系统和方法。 在一个实施例中,全波整流电路通过隔离变压器和电路保护器耦合到公用电网。 整流电路输出端连接到电源转换器的直流母线,为直流母线电容提供预充电电流。 整流电路的输出也为转换器的控制电路电源供电。 当控制电路关闭转换器系统的接触器并激活转换器时,直流总线电容器两端的电压增加到提供在预充电电路输出端的整流电网电压的电平。 这反向偏置整流二极管,将预充电电路置于无效状态。 隔离变压器的阻抗在预充电期间将冲击电流限制在直流总线电容器中。
    • 5. 发明授权
    • Power controller
    • 电源控制器
    • US06487096B1
    • 2002-11-26
    • US09207817
    • 1998-12-08
    • Mark GilbrethJoel WacknovSimon Wall
    • Mark GilbrethJoel WacknovSimon Wall
    • H02J336
    • H02J1/10H02J1/14H02J3/28H02J3/32H02J3/381H02J3/382H02P9/04H02P2101/15Y02E70/30
    • A power controller provides a distributed generation power networking system in which bi-directional power converters are used with a common DC bus for permitting compatibility between various energy components. Each power converter operates essentially as a customized bi-directional switching converter configured, under the control of the power controller, to provide an interface for a specific energy component to the DC bus. The power controller controls the way in which each energy component, at any moment, will sink or source power, and the manner in which the DC bus is regulated. In this way, various energy components can be used to supply, store and/or use power in an efficient manner. The various energy components include energy sources, loads, storage devices and combinations thereof.
    • 功率控制器提供分布式发电电力网络系统,其中双向功率转换器与公共DC总线一起使用,以允许各种能量组件之间的兼容性。 每个功率转换器基本上作为在功率控制器的控制下配置的定制双向开关转换器来提供到DC母线的特定能量分量的接口。 功率控制器控制任何时候每个能量分量将下沉或输出功率的方式,以及直流母线的调节方式。 以这种方式,可以使用各种能量组件以有效的方式提供,存储和/或使用电力。 各种能量组件包括能源,负载,存储装置及其组合。
    • 6. 发明授权
    • Turbogenerator with electrical brake
    • 带电动制动器的涡轮发电机
    • US06784565B2
    • 2004-08-31
    • US10077121
    • 2002-02-15
    • Simon WallBrian DickeyGuillermo Pont
    • Simon WallBrian DickeyGuillermo Pont
    • F02N1100
    • H02J1/14F05B2200/15H02J1/10H02P9/04H02P2101/15
    • In an integrated turbogenerator system having an air intake for a compressor to supply combustion air to a combustor, an electric brake device such as a resistor is connected to the electrical power output of the turbogenerator and is situated in the air intake to be cooled by the stream of combustion air flowing into the intake. When load transients require unloading excess electrical power produced by the turbogenerator, the brake resistor is supplied with at least part of the excess electrical power to create heat energy and thereby heat the in-flowing combustion air to lower the combustor efficiency, turbogenerator power produced, and excess electric power to be unloaded. An algorithm may be provided for controlling the turbogenerator speed deceleration rate to maintain the brake resistor at or near a physical temperature limit.
    • 在具有用于向燃烧器供应燃烧空气的压缩机的进气口的集成涡轮发电机系统中,诸如电阻器的电气制动装置连接到涡轮发电机的电力输出端,并且位于进气口中以由 燃烧空气流入入口。 当负载瞬变需要卸载由涡轮发电机产生的多余的电力时,制动电阻器被供给至少部分过剩电力以产生热能,从而加热流入的燃烧空气以降低燃烧器效率,产生的涡轮发电机功率, 和多余的电力被卸载。 可以提供用于控制涡轮发电机速度减速率以将制动电阻器维持在或接近物理温度极限的算法。
    • 7. 发明授权
    • Apparatus and method for distortion compensation
    • 用于失真补偿的装置和方法
    • US06629064B1
    • 2003-09-30
    • US09265729
    • 1999-03-09
    • Simon Wall
    • Simon Wall
    • H04B1500
    • H02M7/53875H02M1/12
    • Distortion compensation controller reduces harmonic distortion in an AC circuit current and/or voltage of a power converter bridge operating under digital current and/or voltage control. Within distortion compensation controller, an array of memory locations are used, each corresponding to a particular angle range in the AC cycle. Enough memory locations are allocated to cover all of the AC cycle. For each of these memory locations, historical information is collected over a number of AC cycles about the distortion measured during the corresponding angle range in the AC cycle. Using the historical information, a compensation signal is calculated for use at that angle in the next AC cycle. As the AC cycle progresses, the appropriate compensation signal is added to the output of a conventional current controller. In this way, a near perfect sinusoid can be achieved in the steady state for the current/voltage waveform in the AC circuit.
    • 失真补偿控制器减少在数字电流和/或电压控制下工作的电源转换器桥的交流电路电流和/或电压中的谐波失真。 在失真补偿控制器中,使用存储器位置阵列,每个存储器位置对应于AC循环中的特定角度范围。 分配足够的内存位置来覆盖所有的AC循环。 对于这些存储器位置中的每一个,历经信息被收集在关于在AC循环中的相应角度范围内测量的失真的多个AC周期上。 使用历史信息,计算在下一个AC循环中以该角度使用的补偿信号。 随着AC循环的进行,相应的补偿信号被添加到常规电流控制器的输出端。 以这种方式,对于AC电路中的电流/电压波形,可以在稳定状态下实现接近完美的正弦曲线。