公开(公告)号：US20070222421A1

公开(公告)日：2007-09-27

申请号：US11368826

申请日：2006-03-06

申请人： Casper Labuschagne

发明人： Casper Labuschagne

IPC分类号： G05F1/14

CPC分类号： G05F1/12 ,  G05F1/14 ,  H02J3/1878 ,  Y02E40/30 ,  Y10T307/538

摘要： Provided are methods for controlling operation of a voltage regulator of a single-phase of a three-phase power system to regulate a measured voltage. One of the methods includes recording a first elapsed time between detecting a first excursion of the measured voltage from an in-band area to an out-of-band area, and a first return of the measured voltage to the in-band area. The method also includes recording a second elapsed time period (dip period) between detecting the first return and a second excursion of the measured voltage from the in-band area to an out-of-band area. If the second elapsed time period is less than a predetermined dip time period, causing a tap position change of the voltage regulator upon expiration of a countdown period initiated upon detecting the first excursion, thereby adjusting the measured voltage to the in-band area while allowing a voltage drop of limited length.

摘要翻译： 提供了用于控制三相电力系统的单相的电压调节器的操作以调节测量的电压的方法。 其中一种方法包括：在从带内区域检测到测量的电压的第一偏移到带外区域之间记录第一经过时间，以及将测量的电压首次返回到带内区域。 该方法还包括在从带内区域到带外区域之间检测第一次返回和测量电压的第二偏移之间记录第二经过时间段（dip period）。 如果第二经过时间段小于预定的浸渍时间段，则在检测到第一偏移时启动的倒数计时期限结束时导致电压调节器的抽头位置变化，从而将测量的电压调整到带内区域，同时允许 一个有限长度的电压降。

公开(公告)号：US07265521B2

公开(公告)日：2007-09-04

申请号：US11136333

申请日：2005-05-24

申请人： Arnold P. Kehrli ,  John A. Diaz De Leon, II ,  Douglas C. Folts

发明人： Arnold P. Kehrli ,  John A. Diaz De Leon, II ,  Douglas C. Folts

IPC分类号： G05F1/70

CPC分类号： H02J3/1828 ,  Y02E40/30

摘要： The invention features a system and approach for minimizing the step voltage change as seen by the utility customer as well minimizing transients imposed on the fundamental waveform of a normal voltage carried on a utility power network when a reactive power source (e.g., capacitor bank) is instantaneously connected to the utility power. The reactive power source is adapted to transfer reactive power of a first polarity (e.g., capacitive reactive power) to the utility power network. The system includes a reactive power compensation device configured to transfer a variable quantity of reactive power of a second, opposite polarity to the utility power network, and a controller which, in response to the need to connect the shunt reactive power source to the utility power network, activates the reactive power compensation device and, substantially simultaneously, causes the shunt reactive power source to be connected to the utility power.

摘要翻译： 本发明的特征在于一种系统和方法，用于使公用事业客户所看到的阶跃电压变化最小化，并且当无功电源（例如，电容器组）为...时，最小化施加在公用电力网络上承载的正常电压的基波形的瞬变 瞬间连接到公用电源。 无功功率源适于将第一极性（例如，电容性无功功率）的无功功率传送到公用电力网络。 该系统包括无功功率补偿装置，其被配置为向公用电力网络传送可变量的具有第二相反极性的无功功率;以及控制器，其响应于将分流无功功率源连接到公用电力的需要 网络，激活无功功率补偿装置，并且基本上同时地使分流无功电源连接到公用电力。

公开(公告)号：US07145266B2

公开(公告)日：2006-12-05

申请号：US10760868

申请日：2004-01-20

申请人： Jonathan A. Lynch ,  Jeffrey K Petter

发明人： Jonathan A. Lynch ,  Jeffrey K Petter

IPC分类号： H02J7/00

CPC分类号： H02J3/387 ,  H02J3/18 ,  H02J3/24 ,  H02J3/383 ,  H02J3/386 ,  H02J9/062 ,  H02J2001/004 ,  H02M7/40 ,  H02M2001/0025 ,  Y02B10/72 ,  Y02B90/14 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E10/763 ,  Y02E40/30 ,  Y02P90/40 ,  Y10T307/25 ,  Y10T307/615 ,  Y10T307/62 ,  Y10T307/707 ,  Y10T307/718

摘要： A control system (20) for a power converter (22) designed to convert DC power from a source (30) such as a battery, flywheel or fuel cell into AC power. The control system includes an impedance current regulator (106) for providing an impedance current signal to a summing unit (110) where it may be combined with real and reactive current command signals provided from respective sources (62, 64). The resultant current signal provided by the summing unit is provided to a voltage correction unit (112) that uses the resultant current signal in developing a correction voltage signal provided to the power converter. The correction voltage signal contains information used by the power converter in adjusting the real and reactive currents in its output AC power based on the ability of the AC power network to accept changes in current. Multiple power converters having the control system of the present invention may be connected in parallel to a single AC load or multiple AC loads, without the need for a separate control system interconnecting the power converters. The control system may be advantageously incorporated into a distributed generation network and in uninterruptible power systems, whether or not such systems are included in a distributed generation network.

摘要翻译： 一种用于功率转换器（22）的控制系统（20），其被设计成将来自诸如电池，飞轮或燃料电池的源（30）的DC功率转换成AC电力。 控制系统包括用于向求和单元（110）提供阻抗电流信号的阻抗电流调节器（106），其中它可以与从各个源（62,64）提供的实际和无功电流指令信号组合。 由求和单元提供的合成电流信号被提供给电压校正单元（112），该电压校正单元使用所得到的电流信号来形成提供给功率转换器的校正电压信号。 校正电压信号包含功率转换器在根据交流电网接受电流变化的能力调节其输出交流电源中的实电流和无功电流时使用的信息。 具有本发明的控制系统的多个功率转换器可以并联连接到单个AC负载或多个AC负载，而不需要互连功率转换器的单独的控制系统。 无论这种系统是否包括在分布式生成网络中，控制系统可以有利地并入到分布式生成网络和不间断电力系统中。

公开(公告)号：US07091703B2

公开(公告)日：2006-08-15

申请号：US10794398

申请日：2004-03-04

申请人： Douglas C. Folts ,  William A. Vareka ,  Arnold P. Kehrli ,  John A. Diaz De Leon, II

发明人： Douglas C. Folts ,  William A. Vareka ,  Arnold P. Kehrli ,  John A. Diaz De Leon, II

IPC分类号： G05F1/70

CPC分类号： H02J3/1828 ,  Y02E40/30

摘要： The invention features a system for connection to a utility power network. The system includes a reactive power compensation device coupled to the network and configured to transfer reactive power between the utility power network and the reactive power compensation device; a capacitor system configured to transfer capacitive reactive power between the utility power network and the capacitor system; an electro-mechanical switch for connecting and disconnecting the capacitor system to the utility power network; an interface associated with the electro-mechanical switch; a controller configured to provide control signals for controlling the electro-mechanical switch; and a communication channel for coupling the controller to the interface associated with the electro-mechanical switch. The electro-mechanical switch, interface, controller, and communication channel together are configured to connect or disconnect the capacitor system from the utility power network within about three line cycles or less of the nominal voltage frequency when a fault condition is detected on the utility power network.

摘要翻译： 本发明的特征在于用于连接到公共电力网络的系统。 该系统包括耦合到网络并被配置为在公用电力网络和无功功率补偿装置之间传送无功功率的无功功率补偿装置; 电容器系统，被配置为在所述公用电力网络和所述电容器系统之间传送容性无功功率; 用于将电容器系统连接到公用电力网络的电动机械开关; 与机电开关相关的接口; 控制器，被配置为提供用于控制所述机电开关的控制信号; 以及用于将控制器耦合到与机电开关相关联的接口的通信通道。 机电开关，接口，控制器和通信通道一起被配置为在公用电力网络中检测到故障条件时，在公用电力网络的大约三个线路周期内或更短的时间内将电容器系统与公用电力网络连接或断开 网络。

公开(公告)号：US20060096953A1

公开(公告)日：2006-05-11

申请号：US10528201

申请日：2003-09-12

申请人： Per Halvarsson ,  Claes Bengtsson ,  David Larsson ,  Johan Karlstrand

发明人： Per Halvarsson ,  Claes Bengtsson ,  David Larsson ,  Johan Karlstrand

IPC分类号： H01H33/34

CPC分类号： H02J3/1821 ,  Y02E40/30 ,  Y10T307/669

摘要： An installation for transmission of electric power via a high-voltage ac voltage line between two switchgear units located at a large distance from each other. For the transmission of the electric power, the ac voltage line includes at least one extruded cable with an inner electric conductor, an insulating layer of a solid material surrounding the conductor, and an outer screen layer located at ground potential. The installation also includes one or more inductors located along the extent of the cable between the switchgear units and integrated into the cable. The inductors are connected between the conductor of the cable and ground for reactive shunt compensation.

摘要翻译： 用于通过位于彼此相距很远的两个开关设备单元之间的高压交流电压线路传输电力的设备。 为了传输电力，交流电压线包括至少一个具有内部电导体的挤出电缆，围绕导体的固体材料的绝缘层和位于地电位的外部屏幕层。 该安装还包括一个或多个电感器，沿着开关设备之间的电缆的范围设置并集成到电缆中。 电感器连接在电缆的导体和地之间用于反应性分流补偿。

公开(公告)号：US20060082348A1

公开(公告)日：2006-04-20

申请号：US11136333

申请日：2005-05-24

申请人： Arnold Kehrli ,  John Diaz Leon ,  Douglas Folts

发明人： Arnold Kehrli ,  John Diaz Leon ,  Douglas Folts

IPC分类号： G05F1/70

CPC分类号： H02J3/1828 ,  Y02E40/30

摘要： The invention features a system and approach for minimizing the step voltage change as seen by the utility customer as well minimizing transients imposed on the fundamental waveform of a normal voltage carried on a utility power network when a reactive power source (e.g., capacitor bank) is instantaneously connected to the utility power. The reactive power source is adapted to transfer reactive power of a first polarity (e.g., capacitive reactive power) to the utility power network. The system includes a reactive power compensation device configured to transfer a variable quantity of reactive power of a second, opposite polarity to the utility power network, and a controller which, in response to the need to connect the shunt reactive power source to the utility power network, activates the reactive power compensation device and, substantially simultaneously, causes the shunt reactive power source to be connected to the utility power.

摘要翻译： 本发明的特征在于一种系统和方法，用于使公用事业客户所看到的阶跃电压变化最小化，并且当无功电源（例如，电容器组）为...时，最小化施加在公用电力网络上承载的正常电压的基波形的瞬变 瞬间连接到公用电源。 无功功率源适于将第一极性（例如，电容性无功功率）的无功功率传送到公用电力网络。 该系统包括无功功率补偿装置，其被配置为向公用电力网络传送可变量的具有第二相反极性的无功功率;以及控制器，其响应于将分流无功功率源连接到公用电力的需要 网络，激活无功功率补偿装置，并且基本上同时地使分流无功电源连接到公用电力。

公开(公告)号：US06965291B2

公开(公告)日：2005-11-15

申请号：US10299684

申请日：2002-11-20

申请人： Espen Haugs ,  Frank Strand

发明人： Espen Haugs ,  Frank Strand

IPC分类号： G05F1/32 ,  H01F20060101 ,  H01F21/08 ,  H01F29/14 ,  H01F38/02 ,  H02H9/02 ,  H02H9/08 ,  H02J3/18 ,  H01F27/28

CPC分类号： G05F1/32 ,  H01F29/14 ,  H02H9/021 ,  H02H9/08 ,  H02J3/18 ,  Y02E40/30

摘要： A circuit component (L1) with controllable impedance, includes a body (1) of a magnetizable material, a main winding (A1) wound round the body (1) about a first axis and a control winding (A2) wound round the body (1) about a second axis, at right angles to the first axis, where the main winding (A1) is arranged for connection to a working circuit in which the circuit component (L1) is to be employed and the control winding (A2) is arranged for connection to a control unit for controlling the impedance in the working circuit. The circuit component or a similar transformer device can be included in various current and voltage regulating devices.

摘要翻译： 具有可控阻抗的电路部件（L1）包括可磁化材料的主体（1），围绕第一轴缠绕在主体（1）上的主绕组（A 1）和缠绕在其上的控制绕组（A 2） 所述主体（1）围绕与所述第一轴成直角的第二轴线，其中所述主绕组（A 1）被布置用于连接到要使用所述电路部件（L1）的工作电路，并且所述控制 绕组（A 2）被布置用于连接到用于控制工作电路中的阻抗的控制单元。 电路部件或类似的变压器装置可以包括在各种电流和电压调节装置中。

公开(公告)号：US06806688B2

公开(公告)日：2004-10-19

申请号：US10138409

申请日：2002-05-06

申请人： Yasuhiro Noro ,  Kenji Kudo ,  Yoshihisa Sato

发明人： Yasuhiro Noro ,  Kenji Kudo ,  Yoshihisa Sato

IPC分类号： H02P728

CPC分类号： H02J3/1821 ,  H02J3/1878 ,  Y02E40/30

摘要： A power adjustment apparatus includes a phase shifter including a stator having a stator winding and a rotor having a rotor winding, a winding terminal of one of the stator winding and the rotor winding being connected to a power-system bus, and a winding terminal of the other being connected to the power-system bus via an impedance load, a driver axially coupled to the rotor to drive the rotor, and a controller which gives the driver a command value to adjust the phase difference between the stator and the rotor to a desired value.

摘要翻译： 功率调节装置包括：移相器，包括具有定子绕组的定子和具有转子绕组的转子，定子绕组中的一个和转子绕组的绕组端子连接到电力系统总线，以及绕组端子 另一个通过阻抗负载连接到电力系统总线，轴向耦合到转子以驱动转子的驱动器;以及控制器，其给予驱动器命令值以将定子和转子之间的相位差调整到 所需值。

公开(公告)号：US20040066664A1

公开(公告)日：2004-04-08

申请号：US10362379

申请日：2003-08-21

发明人： John J. Vithayathil ,  Kadry Sadek

IPC分类号： H02M007/5387

CPC分类号： H02J3/1828 ,  H02J3/1864 ,  Y02E40/12 ,  Y02E40/30

摘要： The novel circuit arrangement is used for the static generation of a variable electric output, as is common in static reactive-power compensation systems. According to the invention, a voltage is applied to a consumer, i.e. to a capacitor and/or an inductor, and a transformer (T) has at least two power-control windings (W1, W2) in a secondary circuit, said windings being connected electrically in series via bridge circuits (B1, B2). In their branches, the bridge circuits contain static switches (BSS1 . . . 4) in an inverse-parallel connection, said switches can be selectively connected or disconnected.

摘要翻译： 新颖的电路装置用于静态产生可变电力输出，如在静态无功功率补偿系统中所常见的。 根据本发明，向消费者（即，电容器和/或电感器）施加电压，并且变压器（T）在次级电路中具有至少两个功率控制绕组（W1，W2），所述绕组为 通过桥接电路（B1，B2）串联电连接。 在它们的分支中，桥接电路包含逆并联连接的静态开关（BSS1.4），所述开关可以选择性地连接或断开。

公开(公告)号：US20040046531A1

公开(公告)日：2004-03-11

申请号：US10416633

申请日：2003-09-22

发明人： Vincenzo Ferraro ,  Emilio Ferraro

IPC分类号： G05F001/70

CPC分类号： H02J3/1835 ,  H02J3/01 ,  Y02E40/30 ,  Y02E40/40

摘要： A wide range of electric loads, has functional concepts hat lie outside the common standards (resistive, inductive, capacitive), as, for instance: gas-discharge lamps, or electronic loads; in fact, for their own functional features, these loads, introduce some harmonic distortions on the absorbed current, that cannot be solved with normal compensating systems (as, for example, phase advancers). A disadvantage which affects the feeders and their respective generators, therefore reducing: their efficiency, the power capacitance that can be supplied, and the qualitative level of energy distribution. Our system succeeds in evaluating and compensating (for the part of energy that its power section allows), the harmonic distortion on the network, therefore improving the various parameters which characterize it. Besides, since the system can operate both as load and as generator, it can be structured so that it uses the power sections, already useful to hold other applications; and that greatly reduces the price-of-the-device/corrected-power ratio.

摘要翻译： 电气负载范围广泛，功能概念帽位于通用标准（电阻，电感，电容）之外，例如：气体放电灯或电子负载; 事实上，为了自身的功能特征，这些负载对吸收的电流引入一些谐波失真，这不能用普通补偿系统（例如，相位推进器）来解决。 影响馈线及其各自发电机的缺点，因此降低了它们的效率，可提供的功率电容以及能量分布的定性水平。 我们的系统成功地评估和补偿（功率部分允许的能量部分），网络中的谐波失真，从而改进了表征其的各种参数。 此外，由于系统既可以作为负载又可以作为发电机工作，它可以被构造为使用功率部分，已经有用于保持其他应用; 并大大降低了设备价格/校正功率比。