公开(公告)号：US07638984B2

公开(公告)日：2009-12-29

申请号：US12102580

申请日：2008-04-14

申请人： Mark Jurkat ,  Kay Richter ,  Ralf Harder

发明人： Mark Jurkat ,  Kay Richter ,  Ralf Harder

IPC分类号： H20P11/00

CPC分类号： H02J3/386 ,  H02J3/1885 ,  Y02E10/763 ,  Y02E40/32

摘要： A method for the operation of a wind energy plant, with control of a reactive electric variable which is to be provided, wherein a desired value for the reactive electric variable is determined as follows: a first upper and/or a first lower limit value of the grid voltage is defined for the grid voltage, when the real value of the grid voltage exceeds the first upper limit value and/or the real value of the grid voltage falls below the first lower limit value, the desired value of the reactive electric variable is increased or diminished such that the deviation of the real value of the grid voltage from its desired value is counter-acted, wherein the desired value of the reactive electric variable is continuously increased or diminished further over the time, as long as the real value of the grid voltage exceeds the first upper limit value or falls below the first lower limit value.

摘要翻译： 一种用于操作风力发电设备的方法，其中控制要提供的无功电动变量，其中所述无功电变量的期望值如下确定：第一上限和/或第一下限值 电网电压被定义为电网电压，当电网电压的实际值超过第一上限值和/或电网电压的实际值低于第一下限值时，无功电力变量的期望值 增加或减小，使得电网电压的实际值与其期望值的偏差是相反的，其中无功电变量的期望值在时间上不断增加或减小，只要实际值 的电压超过第一上限值或者低于第一下限值。

公开(公告)号：US07965063B2

公开(公告)日：2011-06-21

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： H20P11/00

CPC分类号： F02D29/06 ,  H02P9/10 ,  H02P9/107 ,  H02P9/42 ,  H02P9/48 ,  H02P27/08 ,  H02P29/027

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。

公开(公告)号：US07292011B2

公开(公告)日：2007-11-06

申请号：US11209795

申请日：2005-08-23

申请人： Bruce D. Beneditz

发明人： Bruce D. Beneditz

IPC分类号： H20P11/00

CPC分类号： H02H7/06 ,  H02H1/0015 ,  H02P9/006 ,  H02P2101/30

摘要： A generator system includes a generator control for providing electrical power to a main generator. The main generator is mechanically coupled to an electrical power source that provides electrical power to the generator control during operation of the main generator. An arc fault device in electrical communication with the electrical power source electrically isolates the power source from the generator control when an arc fault within the generator control is detected.

摘要翻译： 发电机系统包括用于向主发电机提供电力的发电机控制。 主发电机机械耦合到在主发电机运行期间向发电机控制提供电力的电源。 当检测到发电机控制中的电弧故障时，与电源电气通信的电弧故障装置将电源与发电机控制电隔离。

公开(公告)号：US08004252B2

公开(公告)日：2011-08-23

申请号：US11770827

申请日：2007-06-29

申请人： Christof Martin Sihler ,  Alfredo Sebastian Achilles ,  Simon Herbert Schramm

发明人： Christof Martin Sihler ,  Alfredo Sebastian Achilles ,  Simon Herbert Schramm

IPC分类号： H20P11/00

CPC分类号： H02J3/24

摘要： A power system stabilizer includes: a sensor configured for sensing a signal representative of electromechanical oscillations of the power system; a controller configured for using the sensed signal for generating control signals for damping the electromechanical oscillations; and a damper including a damping converter and a resistor coupled to the damping converter, the damping converter being coupled to the power system through a power bus, the damping converter configured for using the control signals for damping the electro-mechanical oscillations.

摘要翻译： 电力系统稳定器包括：被配置为感测代表电力系统的机电振荡的信号的传感器; 控制器，其被配置为使用所述感测信号来产生用于阻尼机电振荡的控制信号; 以及阻尼器，其包括耦合到所述阻尼转换器的阻尼转换器和电阻器，所述阻尼转换器通过电力总线耦合到所述电力系统，所述阻尼转换器被配置为使用所述控制信号来阻尼所述电 - 机械振荡。

公开(公告)号：US07453241B2

公开(公告)日：2008-11-18

申请号：US11605601

申请日：2006-11-29

申请人： Douglas E. Keiter ,  Ezekiel S. Holliday

发明人： Douglas E. Keiter ,  Ezekiel S. Holliday

IPC分类号： H20P11/00

CPC分类号： F02M35/112 ,  F02D29/06 ,  F02G1/0435 ,  F02G1/045 ,  F02G2280/10 ,  H02P9/04 ,  H02P25/032

摘要： A feedback control method and circuit for inclusion in a control system of an electrical power generating source that comprises a free piston Stirling engine driving a linear alternator. An instantaneous value of a variable, Vinternal, is continuously derived from other sensed and computed parameters and used in a negative feedback control loop of the control system to control engine piston stroke in order to maintain the power produced by the engine equal to the power transferred from the engine to the alternator. Vinternal is the sum of the voltage induced on the alternator winding and the voltage across the equivalent circuit lumped resistance of the alternator winding and a switching mode rectifier connects the alternator winding to an energy storage capacitor or battery. A negative feedback, alternator current control loop has an output connected to the pulse width modulator of the switching mode rectifier and has a feedback circuit comprising a current sensor for sensing instantaneous alternator current. A negative feedback, Vinternal control loop has a feedback circuit including a piston position or velocity sensor connected to a computing circuit that the current sensor is also connected to. The computing circuit computes a signal representing Vinternal for use as the feedback signal of the Vinternal control loop. The output of the Vinternal control loop is connected as the command input to the current feedback control loop.

摘要翻译： 一种用于包括在发电源的控制系统中的反馈控制方法和电路，其包括驱动线性交流发电机的自由活塞斯特林发动机。 变量的瞬时值V <内部从其他感测和计算的参数连续导出，并用于控制系统的负反馈控制回路以控制发动机活塞冲程，以便保持产生的功率 发动机等于从发动机传递到交流发电机的功率。 V SUB内部是交流发电机绕组感应的电压和交流发电机绕组的等效电路集总电阻之间的电压之和，开关模式整流器将交流发电机绕组连接到储能电容器或电池。 负反馈，交流发电机电流控制回路具有连接到开关模式整流器的脉宽调制器的输出，并具有包括用于感测瞬时交流发电机电流的电流传感器的反馈电路。 负反馈的V＆lt;内部控制回路具有反馈电路，其包括连接到电流传感器也连接到计算电路的活塞位置或速度传感器。 计算电路计算一个表示V IN内部的信号，以用作V 控制环路的反馈信号。 作为当前反馈控制回路的命令输入端，连接了V＆lt;内部＆lt; / SUB＆gt;控制回路的输出。