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公开(公告)号：US6041850A
公开(公告)日：2000-03-28
申请号：US747710
申请日：1996-11-12
申请人： Albert Andreas Maria Esser , James Patrick Lyons , Lyle Thomas Keister , Steven Wade Sutherland , Melvin La Vern Hughes , Howard Ross Edmunds , Stephen Daniel Nash , Paul Stephen Pate , Patrick Henry McGinn , Conrad Angelo Pecile
发明人： Albert Andreas Maria Esser , James Patrick Lyons , Lyle Thomas Keister , Steven Wade Sutherland , Melvin La Vern Hughes , Howard Ross Edmunds , Stephen Daniel Nash , Paul Stephen Pate , Patrick Henry McGinn , Conrad Angelo Pecile
CPC分类号： H05K7/20945 , F28D15/0275 , H05K7/20936
摘要： A system for temperature control of an electronic component includes a heat plate supporting the component; a heat plate temperature sensor; a fan capable of providing air for cooling the heat plate; and a fan control for using the heat plate temperature to control the operation of the fan to provide a substantially constant heat plate temperature. The system can further include a heat pipe assembly having fins and coupled to the heat plate with the fan capable of providing air to the fins. The heat pipe assembly can include at least two heat pipes each having first ends coupled to the heat plate and second ends situated in a condensation section where at least one of the heat pipes has a different working fluid than an other. A switch temperature or load current sensor can be coupled to the heat plate and supply data to a switch controller for receiving the switch temperature, determining whether the temperature or load current has changed, and adjusting a switching frequency of the at least one electronic switch device in response to any change of the switch temperature. A bus layer can be situated adjacent the component and selectively coated with an insulating material and studs can mechanically and electrically coupling the bus layer and a printed circuit board to the component. An insulating shield can be situated between the bus layer and the printed circuit board with the studs.
摘要翻译： 电子部件的温度控制系统包括：支撑部件的加热板; 热板温度传感器; 能够提供用于冷却加热板的空气的风扇; 以及使用加热板温度来控制风扇的操作以提供基本上恒定的加热板温度的风扇控制。 该系统还可以包括具有翅片并且耦合到加热板的热管组件，其中风扇能够向翅片提供空气。 热管组件可以包括至少两个热管，每个热管具有联接到加热板的第一端和位于冷凝部分中的第二端，其中至少一个热管具有与另一个不同的工作流体。 开关温度或负载电流传感器可以耦合到加热板，并将数据提供给开关控制器以接收开关温度，确定温度或负载电流是否已经改变，以及调整至少一个电子开关器件的开关频率 响应于开关温度的任何变化。 总线层可以位于部件附近并且选择性地涂覆有绝缘材料，螺柱可以将总线层和印刷电路板机械地和电耦合到部件上。 绝缘屏蔽可以位于总线层和具有螺柱的印刷电路板之间。
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公开(公告)号：US5910892A
公开(公告)日：1999-06-08
申请号：US108041
申请日：1998-06-30
IPC分类号： H02M7/48 , H02M7/487 , H02M7/5387
CPC分类号： H02M7/487 , H02M2007/53876
摘要： A high power motor drive converter includes a three level neutral point clamped (NPC) output power conversion stage including switches; a split series connected DC capacitor bank coupled in parallel with the NPC output power conversion stage; and a controller for selecting switch positions for controlling the NPC output power conversion stage and controlling a neutral voltage balance of the DC capacitor bank by using space vector modulation and predictive charge calculations.
摘要翻译： 大功率电动机驱动转换器包括三级中性点钳位（NPC）输出功率转换级，包括开关; 与NPC输出功率转换级并联耦合的分立串联直流电容器组; 以及用于选择用于控制NPC输出功率转换级的开关位置并通过使用空间矢量调制和预测电荷计算来控制DC电容器组的中性电压平衡的控制器。
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公开(公告)号：US6058031A
公开(公告)日：2000-05-02
申请号：US108044
申请日：1998-06-30
申请人： James Patrick Lyons , Vlatko Vlatkovic , Paul Martin Espelage , Albert Andreas Maria Esser , Yifan Zhao , Fei Fred Wang, Sr.
发明人： James Patrick Lyons , Vlatko Vlatkovic , Paul Martin Espelage , Albert Andreas Maria Esser , Yifan Zhao , Fei Fred Wang, Sr.
CPC分类号： H02M7/487 , H02M7/5395 , H02P27/14
摘要： A high power motor drive converter includes: a five level hybrid NPC output power conversion stage including three NPC phase bridges having switches and coupled in a wye configuration through a converter neutral point, each NPC phase bridge receiving power on a respective direct current bus; three isolated split series-connected DC capacitor banks each coupled in parallel to a respective one of the three NPC phase bridges; and a controller for selecting switch positions with active control of neutral voltages. The controller is adapted to select switch positions using feedforward sine-triangle modulation with third harmonic injection, zero sequence injection, and/or discontinuous modulation injection.
摘要翻译： 大功率电动机驱动转换器包括：五级混合NPC输出功率转换级，包括具有开关的三个NPC相桥，并且通过转换器中性点以叶状配置耦合，每个NPC相桥在相应的直流母线上接收功率; 三个隔离的串联连接的直流电容器组，其分别与三个NPC相桥中的相应一个并联耦合; 以及用于选择具有中性电压的主动控制的开关位置的控制器。 控制器适于使用具有三次谐波注入，零序注入和/或不连续调制注入的前馈正弦三角调制来选择开关位置。
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公开(公告)号：US6141196A
公开(公告)日：2000-10-31
申请号：US32948
申请日：1998-03-02
申请人： William James Premerlani , David Jeremiah Hoeweler , Albert Andreas Maria Esser , James Patrick Lyons , Gerald Burt Kliman , Rudolph Alfred Albert Koegl , Mark Gerald Adamiak
发明人： William James Premerlani , David Jeremiah Hoeweler , Albert Andreas Maria Esser , James Patrick Lyons , Gerald Burt Kliman , Rudolph Alfred Albert Koegl , Mark Gerald Adamiak
CPC分类号： H02H1/0092 , G01R19/2513 , G01R31/343
摘要： A method for obtaining a power system phasor includes sampling a power system signal at instants determined by a nominal power system frequency to provide a plurality of data samples; using the data samples to estimate a phasor having an elliptical trajectory; generating a deviation formula representing a frequency deviation between actual and nominal power system frequencies; and using the deviation formula to perform a coordinate transform of the estimated phasor to provide a scaled phasor having a substantially circular trajectory. If the data samples are unevenly spaced, a method in another embodiment includes minimizing squares of errors between the unevenly spaced data samples and an approximating sinusoidal function of the data samples. Power system phasors can be used to detect turn faults by providing scaled current and voltage phasors; extracting fundamental voltage and current phasors; and applying a symmetrical component transform to the fundamental voltage and current phasors to obtain symmetrical component voltage and current phasors for use in determining the existence of a turn fault. Variance calculations and/or trigonometric function fits can be used to increase sensitivity of fault detection.
摘要翻译： 一种用于获得电力系统相量的方法包括在由标称电力系统频率确定的时刻对电力系统信号进行采样，以提供多个数据样本; 使用数据样本来估计具有椭圆轨迹的相量; 产生表示实际和标称功率系统频率之间频率偏差的偏差公式; 并且使用偏差公式来执行所估计的相量的坐标变换，以提供具有基本圆形轨迹的缩放相量。 如果数据采样不均匀，则另一实施例中的方法包括最小化不均匀间隔的数据样本之间的误差平方和数据采样的近似正弦函数。 电力系统相量可用于通过提供定标的电流和电压相量来检测转向故障; 提取基波电压和电流相量; 并将对称分量变换应用于基波电压和电流相量，以获得用于确定匝间故障的存在的对称分量电压和电流相量。 方差计算和/或三角函数拟合可用于提高故障检测的灵敏度。
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公开(公告)号：US5907192A
公开(公告)日：1999-05-25
申请号：US871171
申请日：1997-06-09
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。
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公开(公告)号：US07446435B2
公开(公告)日：2008-11-04
申请号：US11289919
申请日：2005-11-30
申请人： Richard S. Zhang , Changyong Wang , Lei Li , James Patrick Lyons , Zhuohui Tan , Allen Michael Ritter
发明人： Richard S. Zhang , Changyong Wang , Lei Li , James Patrick Lyons , Zhuohui Tan , Allen Michael Ritter
IPC分类号： H02M1/12
CPC分类号： H02M5/4585 , H02J3/386 , H02M1/12 , Y02E10/763
摘要： A power system for providing an output power to a load is provided. The system comprises a generator configured to generate an alternating current input power and an power converter system coupled to the generator and configured to generate an output power and provide the output power to the load through at least one transformer. The system further comprises a converter control system coupled to the converter system and configured to drive the converter system in an interleaved pattern to reduce harmonic components in the output power and the alternating current input power.
摘要翻译： 提供了一种用于向负载提供输出功率的电力系统。 该系统包括被配置为产生交流输入功率的发电机和耦合到发电机并被配置为产生输出功率并且通过至少一个变压器向负载提供输出功率的功率转换器系统。 该系统还包括耦合到转换器系统并被配置为以交替模式驱动转换器系统以降低输出功率和交流输入功率中的谐波分量的转换器控制系统。
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公开(公告)号：US07154192B2
公开(公告)日：2006-12-26
申请号：US10951329
申请日：2004-09-27
申请人： Patrick Lee Jansen , James Patrick Lyons , Ralph James Carl, Jr. , Ronghai Qu , James Michael Fogarty , Bharat Sampathkumaran Bagepalli , Aniruddha Dattatraya Gadre , Jivtesh Garg , Fulton Jose Lopez
发明人： Patrick Lee Jansen , James Patrick Lyons , Ralph James Carl, Jr. , Ronghai Qu , James Michael Fogarty , Bharat Sampathkumaran Bagepalli , Aniruddha Dattatraya Gadre , Jivtesh Garg , Fulton Jose Lopez
IPC分类号： F03D9/00
CPC分类号： F03D9/25 , F03D15/20 , F03D80/60 , F05B2220/30 , H02K1/06 , H02K1/12 , H02K7/1838 , H02K16/02 , H02K21/12 , Y02E10/725
摘要： The machine includes a rotor with an inner rotor core and an outer rotor core and a double-sided stator with an inner stator side and an outer stator side. The double-sided stator is concentrically disposed between the inner rotor core and the outer rotor core of the wind turbine generator. The double-sided stator is configured to enable at least a portion of magnetic flux to be shared between the inner stator side and the outer stator side. Examples of particularly useful embodiments for the machine include wind turbine generators and ship propulsion motors.
摘要翻译： 该机器包括具有内转子芯和外转子芯的转子和具有内定子侧和外定子侧的双侧定子。 双面定子同心地设置在风力涡轮发电机的内转子芯和外转子芯之间。 双面定子构造成能够使内部定子侧和外侧定子侧之间共享至少一部分磁通。 机器特别有用的实施例的实例包括风力涡轮发电机和船舶推进电动机。
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公开(公告)号：US5864217A
公开(公告)日：1999-01-26
申请号：US854127
申请日：1997-05-08
CPC分类号： H02P25/089
摘要： An apparatus and method for estimating rotor position in and commutating a switched reluctance motor (SRM), using both a flux/current SRM angle estimator and a toothed wheel generating a magnetic pickup. Commutation is based on the flux/current SRM at startup and lower speeds. At higher speeds, when magnetic pickup sensed from the toothed wheel is sufficiently large in amplitude to create frequent reliable interrupts, commutation is based on signals from the toothed wheel magnetic pickup. Phase errors can be compensated by adjusting the angle input to the commutator as a function of estimated speed. Alternatively, the flux/current SRM angle estimator can be run in a background mode to tune the toothed wheel interrupt angle signal at different speeds.
摘要翻译： 使用磁通/电流SRM角度估计器和产生磁性拾取器的齿轮来估计开关磁阻电动机（SRM）中的转子位置和换向的装置和方法。 换向是基于启动时的通量/电流SRM和较低的速度。 在更高的速度下，当从齿轮感测到的磁性拾音器的振幅足够大以产生频繁的可靠中断时，换向是基于来自齿轮磁性拾取器的信号。 通过调整输入到换向器的角度作为估计速度的函数可以补偿相位误差。 或者，通量/电流SRM角度估计器可以在背景模式下运行，以以不同的速度调谐齿轮中断角度信号。
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9.发明授权Cross current control for power converter systems and integrated magnetic choke assembly 有权电力转换器系统和集成式磁阻组件的交流电流控制公开(公告)号：US06917271B2
公开(公告)日：2005-07-12
申请号：US10727390
申请日：2003-12-03
摘要： A cross current control system for multiple, parallel-coupled power converters includes common mode chokes, local cross current feedback controllers, and local converter controllers. Each common mode choke is coupled to a respective power converter. Each local cross current feedback controller is configured for receiving common mode cross currents from a respective local cross current detector, calculating a resultant cross current, and generating a local feedback control signal. Each local converter controller is configured for using a respective local feedback control signal to drive the respective power converter in accordance with a coordinated switching pattern. An integral choke assembly includes a common mode choke and a differential mode choke with common and differential mode choke cores configured with at least one magnetic flux path being shared by magnetic flux generated by common mode coils and differential mode coils.
摘要翻译： 用于多个并联耦合的功率转换器的交叉电流控制系统包括共模扼流圈，局部交叉电流反馈控制器和本地转换器控制器。 每个共模扼流圈耦合到相应的功率转换器。 每个局部交叉电流反馈控制器被配置为从相应的局部交叉电流检测器接收共模交叉电流，计算合成的交叉电流以及产生局部反馈控制信号。 每个本地转换器控制器被配置为使用相应的本地反馈控制信号来根据协调的切换模式来驱动相应的功率转换器。 整体式扼流圈组件包括共模扼流圈和具有公共和差模扼流圈的差模扼流圈，其配置有由共模线圈和差模线圈产生的磁通共享的至少一个磁通路径。
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公开(公告)号：US5982646A
公开(公告)日：1999-11-09
申请号：US108043
申请日：1998-06-30
CPC分类号： H02M7/487 , H02M1/34 , H02M2001/346 , Y02B70/1491
摘要： A three-level NPC converter includes at least one phase leg including four series coupled electrical switches having a first pair junction between the first two switches and a second pair junction between the second two switches. First and second inner switch snubber capacitors are coupled in series at a neutral junction. First and second inner switch snubber diodes are respectively coupled to the first and second pair junctions and respectively coupled at first and second inner diode-capacitor junctions to the first and second inner switch snubber capacitors. First and second inner switch snubber resistors are respectively coupled between the first and second inner diode-capacitor junctions and respective portions of a DC bus. In one embodiment, the NPC converter further includes first and second outer switch snubber diodes coupled between respective first and second inner diode-capacitor junctions and respective portions of the DC bus. This embodiment may further include first and second outer switch snubber capacitors coupled in parallel with respective first and second inner switch snubber capacitors.
摘要翻译： 三电平NPC转换器包括至少一个相位支路，包括四个串联耦合的电开关，该电气开关具有在前两个开关之间的第一对结和第二个两个开关之间的第二对结。 第一和第二内部开关缓冲电容器在中性点处串联耦合。 第一和第二内部开关缓冲二极管分别耦合到第一和第二对结，并且分别在第一和第二内部二极管 - 电容器结处耦合到第一和第二内部开关缓冲电容器。 第一和第二内部开关缓冲电阻分别耦合在第一和第二内部二极管 - 电容器接头和DC总线的相应部分之间。 在一个实施例中，NPC转换器还包括耦合在相应的第一和第二内部二极管 - 电容器结之间的第一和第二外部开关缓冲二极管以及DC总线的相应部分。 该实施例还可以包括与相应的第一和第二内部开关缓冲电容器并联耦合的第一和第二外部开关缓冲电容器。
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