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公开(公告)号：US08901761B2
公开(公告)日：2014-12-02
申请号：US13369838
申请日：2012-02-09
IPC分类号： H02P9/48
摘要： A variable speed electric machine and a method for generating electric energy is provided. The electric machine includes an outer stator with a first set of field windings. Further, the electric machine includes a modulator outer rotor that is concentric and is located proximate to the outer stator. The modulator outer rotor is operatively coupled to an input shaft. Furthermore the electric machine includes a permanent magnet inner rotor concentric to the modulator outer rotor. The electric machine also includes an inner stator with a second set of field windings. The inner stator is concentric to the inner rotor and is operatively coupled to an electric grid. The outer stator, the modulator outer rotor, inner stator and the inner rotor are magnetically coupled with each other so as to maintain a constant electric frequency at the inner stator.
摘要翻译： 提供了一种变速电机和一种产生电能的方法。 电机包括具有第一组励磁绕组的外定子。 此外，电机包括同心的并位于外定子附近的调制器外转子。 调制器外转子可操作地联接到输入轴。 此外，电机包括与调制器外转子同心的永磁体内转子。 电机还包括具有第二组励磁绕组的内部定子。 内部定子与内部转子同心，并且可操作地联接到电网。 外定子，调制器外转子，内定子和内转子彼此磁耦合，以便在内定子处保持恒定的电频率。
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公开(公告)号：US08896142B2
公开(公告)日：2014-11-25
申请号：US12996046
申请日：2009-06-03
申请人： Teresa Arlaban Gabeiras , Oscar Alonso Sadaba , Ana Huarte Amezqueta , Alberto García Barace , José Miguel García Sayes , Ricardo Royo García , Stephen Tonks , Miguel Núñez Polo
发明人： Teresa Arlaban Gabeiras , Oscar Alonso Sadaba , Ana Huarte Amezqueta , Alberto García Barace , José Miguel García Sayes , Ricardo Royo García , Stephen Tonks , Miguel Núñez Polo
CPC分类号： H02J3/386 , F03D9/257 , F05B2270/1033 , H02J3/1885 , H02P9/42 , H02P9/48 , H02P2101/15 , Y02E10/72 , Y02E10/763 , Y02E40/32
摘要： The present disclosure relates to a method for controlling a wind turbine of the type including a rotor, a generator, a frequency converter, a control unit and means for connecting to a wind farm grid, using means for receiving a local voltage reference value (VREF) and a regulator (1) which calculates the reactive power to be generated (QT) as a function of the voltage error (ΔV), such that it can be operated over the entire voltage range. The system also includes: at least one saturator element (2, 6, 7) in which the reactive power to be generated is limited, whereby the limits (Q—MAX, Q—MIN, QC—MAX, QC—MIN, QS—MAX, QS—MIN) are calculated dynamically as a function of the voltage, this block outputting a reference reactive power of the wind turbine (Q—REF, QC—REF, Qs—REF); and an element (3) for calculating the actual limit of the active power (PMAX) as a function of the pre-limited reactive power (Q—REF, Qs—REF) and the apparent power available at that moment.
摘要翻译： 本公开涉及一种用于控制类型的风力涡轮机的方法，包括转子，发电机，变频器，控制单元和用于连接到风电场电网的装置，使用用于接收局部电压参考值（VREF）的装置 ）和调节器（1），其计算作为电压误差（＆Dgr; V）的函数的要产生的无功功率（QT），使得其可以在整个电压范围内操作。 该系统还包括：至少一个饱和器元件（2,6,7），其中产生的无功功率被限制，由此限制（Q-MAX，Q-MIN，QC-MAX，QC-MIN，QS- MAX，QS-MIN）作为电压的函数动态地计算，该块输出风力涡轮机的参考无功功率（Q-REF，QC-REF，Qs-REF）; 以及用于根据预限制无功功率（Q-REF，Qs-REF）和当时可用的视在功率计算有功功率（PMAX）的实际极限的元件（3）。
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公开(公告)号：US08841787B1
公开(公告)日：2014-09-23
申请号：US13832946
申请日：2013-03-15
申请人： Caterpillar Inc.
IPC分类号： F02D29/06 , F03B13/10 , F03B15/08 , H02P9/04 , H02P11/00 , G05D3/12 , G05D5/00 , G05D9/00 , H02M7/48
CPC分类号： H02J3/46 , H02P9/42 , Y10T307/718
摘要： A method of controlling a plurality of gensets during a failsafe condition is provided. The method may include operating one or more of the gensets according to a modified isochronous control scheme, and operating a remainder of the gensets according an adaptive droop control scheme. The modified isochronous control scheme may include varying the frequency of each isochronous genset with respect to load for lower-range loads and upper-range loads, and maintaining the frequency of each isochronous genset at nominal frequencies for mid-range loads. The adaptive droop control scheme may include adjusting the frequency of each droop genset to match the frequency of the isochronous gensets, and varying the load of each droop genset with respect to frequency for lower-range loads and upper-range loads.
摘要翻译： 提供了一种在故障安全状态期间控制多个发电机组的方法。 该方法可以包括根据修改的同步控制方案来操作发电机组中的一个或多个，并且根据自适应下垂控制方案操作发电机组的其余部分。 修改的等时控制方案可以包括相对于较低范围负载和较高范围负载的负载改变每个同步发电机组的频率，并且将中间范围负载的每个同步发电机组的频率保持在额定频率。 自适应下垂控制方案可以包括调整每个下垂发电机组的频率以匹配同步发电机组的频率，并且相对于较低范围负载和较高范围负载的频率改变每个下垂发电机组的负载。
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公开(公告)号：US20130181561A1
公开(公告)日：2013-07-18
申请号：US13584516
申请日：2012-08-13
申请人： HILDEGARD K. MARKS
发明人： LEO G. NICKOLADZE
IPC分类号： H02K16/00
CPC分类号： H02K16/00 , H02J3/40 , H02K19/26 , H02K19/38 , H02P9/42 , H02P2101/10 , H02P2101/15
摘要： A three-phase line synchronous generator with an exciter and generator stage. The exciter stage includes an exciter stator having n poles and an exciter rotor having n poles and disposed for rotation within the exciter stator, and the generator stage includes a generator stator having n poles and a generator rotor having n poles. The generator rotor being mechanically coupled to the exciter rotor and disposed for rotation within the generator stator, wherein the poles of the stators, or the poles of the rotors, are angularly displace by one pole pitch.
摘要翻译： 具有励磁机和发电机级的三相线路同步发电机。 励磁机级包括具有n极的励磁机定子和具有n极的励磁机转子，并且设置成用于在励磁机定子内旋转，发电机级包括具有n极的发电机定子和具有n极的发电机转子。 发电机转子机械耦合到励磁机转子并且设置成用于在发电机定子内旋转，其中定子的极点或转子的极点以一个极间距进行角位移。
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公开(公告)号：US08294431B2
公开(公告)日：2012-10-23
申请号：US12501798
申请日：2009-07-13
IPC分类号： H02P9/00
摘要： A method of controlling an engine-driven, electrical generator is provided. The generator generates an output voltage at a frequency with the engine running at an operating speed. The method includes the steps of connecting the generator to a load and varying the operating speed of the engine to optimize fuel consumption in response to the load. Thereafter, the frequency of the output voltage is modified to a predetermined level.
摘要翻译： 提供一种控制发动机驱动的发电机的方法。 发电机在发动机以运行速度运行时产生频率的输出电压。 该方法包括将发电机连接到负载并改变发动机的运行速度以优化响应于负载的燃料消耗的步骤。 此后，将输出电压的频率修改为预定的电平。
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公开(公告)号：US08097970B2
公开(公告)日：2012-01-17
申请号：US11980537
申请日：2007-10-31
申请人： Veikko Hyvärinen
发明人： Veikko Hyvärinen
CPC分类号： H02P9/42 , F03D7/0272 , F05B2270/1041 , F05B2270/504 , H02J3/386 , H02M7/493 , H02M2007/4822 , H02P2101/15 , Y02E10/723 , Y02E10/763
摘要： A method and an arrangement in connection with a wind power plant, an electric drive of the wind power plant comprising two or more partial converters in parallel, which constitute a frequency converter of the electric drive, and each partial converter comprising a mains converter part, of which the nominal power of at least one differs from the nominal power of other mains converter parts, and in the method there is selected for use the smallest possible, individual mains converter part required by an operating point of the wind power plant, or a combination of mains converter parts.
摘要翻译： 一种与风力发电厂相关的方法和装置，包括构成电驱动器的变频器的并联的两个或更多个部分转换器的风力发电厂的电力驱动器，并且每个部分转换器包括电力转换器部分， 其中至少一个的额定功率与其他电力转换器部件的额定功率不同，并且在该方法中，选择使用风力发电厂的工作点所需的尽可能小的单个电力转换器部件，或 电源转换器部件组合。
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17.发明授权公开(公告)号：US07982326B2
公开(公告)日：2011-07-19
申请号：US12899918
申请日：2010-10-07
申请人： Zhuohui Tan , Xiaoming Yuan , Changyong Wang , Ronghai Qu , Robert William Delmerico , Patrick Lee Jansen
发明人： Zhuohui Tan , Xiaoming Yuan , Changyong Wang , Ronghai Qu , Robert William Delmerico , Patrick Lee Jansen
IPC分类号： F03D9/00
CPC分类号： H02P6/183 , H02P9/42 , H02P21/22 , H02P29/50 , H02P2101/15
摘要： A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.
摘要翻译： 一种用于控制永磁同步电机中的转矩脉动的系统，包括配置为耦合到永磁同步电机并接收转换器控制信号的电力转换器和耦合到功率转换器的系统控制器。 系统控制器包括配置用于提供基本电压命令的基波电流控制器，配置为使用谐波电流指令的谐波电流控制器，来自永磁电机的电流反馈信号以及与正序和负序调节器组合的基波电流命令以获得谐波 电压指令以及被配置用于增加基本电压指令和谐波电压指令以获得转换器控制信号的求和元件。
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公开(公告)号：US20110018281A1
公开(公告)日：2011-01-27
申请号：US12899918
申请日：2010-10-07
申请人： Zhuohui Tan , Xiaoming Yuan , Changyong Wang , Ronghai Qu , Robert William Delmerico , Patrick Lee Jansen
发明人： Zhuohui Tan , Xiaoming Yuan , Changyong Wang , Ronghai Qu , Robert William Delmerico , Patrick Lee Jansen
CPC分类号： H02P6/183 , H02P9/42 , H02P21/22 , H02P29/50 , H02P2101/15
摘要： A system for controlling torque ripple in a permanent magnet synchronous machine includes a power converter configured to be coupled to the permanent magnet synchronous machine and to receive converter control signals and a system controller coupled to the power converter. The system controller includes a fundamental current controller configured for providing fundamental voltage commands, a harmonic current controller configured for using harmonic current commands, current feedback signals from the permanent magnet machine, and fundamental current commands in combination with positive and negative sequence regulators to obtain harmonic voltage commands, and summation elements configured for adding the fundamental voltage commands and the harmonic voltage commands to obtain the converter control signals.
摘要翻译： 一种用于控制永磁同步电机中的转矩脉动的系统，包括配置为耦合到永磁同步电机并接收转换器控制信号的电力转换器和耦合到功率转换器的系统控制器。 系统控制器包括配置用于提供基本电压命令的基波电流控制器，配置为使用谐波电流指令的谐波电流控制器，来自永磁电机的电流反馈信号以及与正序和负序调节器组合的基波电流命令以获得谐波 电压指令以及被配置用于增加基本电压指令和谐波电压指令以获得转换器控制信号的求和元件。
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公开(公告)号：US20100020571A1
公开(公告)日：2010-01-28
申请号：US12505784
申请日：2009-07-20
申请人： Shoji HASHIMOTO , Kazufumi Muronoi
发明人： Shoji HASHIMOTO , Kazufumi Muronoi
IPC分类号： H02M5/45
摘要： In an inverter generator having an engine generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal and makes the alternating current of a predetermined frequency, the alternating current supplied to the electrical and voltages of the direct and alternating currents are detected, the detected voltage of the alternating current is corrected as a predetermined value based on a coefficient (DCgainA) set based on the detected voltage of the direct current, when the detected alternating current is greater than a threshold value, and the PWM signal is corrected by the predetermined, thereby limiting overcurrent.
摘要翻译： 在具有发动机发电机单元的逆变器发电机中，将产生的交流电转换为直流电的转换器，将直流电转换成与开关元件交流的供给电负载的逆变器，驱动开关元件的逆变器驱动器， PWM信号并且使得预定频率的交流电流被检测到提供给直流和交流电的电压和交流电流的交流电流，基于系数（DCgainA）将交流电流的检测电压校正为预定值 ），当所检测的交流电流大于阈值时，基于检测到的直流电压设定，并且PWM信号通过预定值进行校正，从而限制过电流。
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20.发明授权Slip-controlled, wound-rotor induction machine for wind turbine and other applications 有权滑动控制，绕线转子感应电机用于风力发电机等应用公开(公告)号：US07554302B2
公开(公告)日：2009-06-30
申请号：US11521426
申请日：2006-09-14
申请人： Colin David Schauder
发明人： Colin David Schauder
CPC分类号： H02P9/42 , H02P9/46 , H02P23/08 , H02P2101/15
摘要： A system and method for providing constant-frequency electrical power from variable-speed mechanical power are disclosed. The system includes a wound-rotor induction machine generator (WRIMG), a first power converter, e.g., an inverter or a bridge rectifier, that provides power from the stator assembly of the WRIMG to the load, and a second power converter, e.g., an inverter or a bridge rectifier, that provides power from the rotor assembly of the WRIMG to the load. A controller controls the output stator-current based on comparisons between measured DC load bus data and a reference DC load bus voltage value, measured machine shaft angular position and reference rotor frequency data, and measured stator-current data that is fed-back to the stator-current controller by the power converter device(s).
摘要翻译： 公开了一种用于从可变速度机械功率提供恒定频率电力的系统和方法。 该系统包括绕组转子感应电机发生器（WRIMG），第一电力转换器，例如逆变器或桥式整流器，其从WRIMG的定子组件向负载供电，以及第二功率转换器， 逆变器或桥式整流器，其从WRIMG的转子组件向负载提供电力。 控制器基于测量的直流负载总线数据与参考直流负载总线电压值，测量的机器轴角位置和参考转子频率数据之间的比较以及被反馈到的测量的定子电流数据来控制输出定子电流 定子电流控制器由电力转换器装置。
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