公开(公告)号：US09252596B2

公开(公告)日：2016-02-02

申请号：US13304935

申请日：2011-11-28

申请人： Ara Panosyan ,  Reigh Allen Walling

发明人： Ara Panosyan ,  Reigh Allen Walling

IPC分类号： H02J1/00 ,  H02J3/00 ,  H02J3/18 ,  H02J3/38

CPC分类号： H02J3/1835 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30 ,  Y10T307/718

摘要： A reactive power compensation method includes generating a variable power factor curve for at least one power generator based on information regarding network parameters; obtaining a value of an active output power parameter from the at least one generator; computing a reactive power based on the variable power factor curve and the value of the active power output parameter of the at least one generator; generating a reactive power compensation command based on the computed reactive power; and transmitting the reactive power compensation command to the at least one power generator for controlling operation of the at least one power generator.

摘要翻译： 无功功率补偿方法包括基于关于网络参数的信息为至少一个发电机生成可变功率因数曲线; 从所述至少一个发电机获得有效输出功率参数的值; 基于所述可变功率因数曲线和所述至少一个发电机的有功功率输出参数的值来计算无功功率; 基于所计算的无功功率产生无功功率补偿命令; 以及向所述至少一个发电机发送所述无功功率补偿命令，以控制所述至少一个发电机的运行。

公开(公告)号：US20160013641A1

公开(公告)日：2016-01-14

申请号：US14770970

申请日：2014-02-25

申请人： RENSSELAER POLYTECHNIC INSTITUTE

发明人： Jian SUN

IPC分类号： H02J1/00 ,  H02J3/38

CPC分类号： H02J1/00 ,  H02J3/18 ,  H02J3/36 ,  H02J3/382 ,  H02J3/386 ,  Y02E40/30 ,  Y02E60/60

摘要： A multi-terminal DC power system includes: a DC network connecting together multiple terminals. Each terminal is represented by one of: a voltage source converter having a capacitor at an interface to the DC network, wherein a difference between a converter-side current and a network-side current charges the capacitor, and a current source converter having an inductor at an interface to the DC network, wherein a difference between a converter-side voltage and a network-side voltage drives current through the inductor. A local controller for each terminal directly controls the converter-side current of each voltage source controller and the converter-side voltage of each current source converter, independent of the terminals, leaving network-side currents and voltages to be determined by the network, resulting in simplified terminal control and avoidance of the need for high-speed communication among all terminals at all times.

摘要翻译： 多端子直流电力系统包括：连接多个端子的DC网络。 每个端子由以下之一表示：在与DC网络的接口处具有电容器的电压源转换器，其中转换器侧电流和网络侧电流之间的差异对电容器充电，以及具有电感器的电流源转换器 在DC网络的接口处，其中转换器侧电压和网络侧电压之间的差异驱动通过电感器的电流。 每个终端的本地控制器独立于终端直接控制每个电压源控制器的转换器侧电流和每个电流源转换器的转换器侧电压，从而使网络侧电流和电压由网络确定，从而产生 简化终端控制，避免所有终端之间的高速通信。

公开(公告)号：US20150378416A1

公开(公告)日：2015-12-31

申请号：US14769380

申请日：2014-02-21

申请人： Hai WANG

发明人： Hai WANG

IPC分类号： G06F1/32 ,  H02J3/18

CPC分类号： G06F1/32 ,  H01G2/18 ,  H01G4/38 ,  H01G4/40 ,  H02J3/18 ,  Y02E40/30 ,  Y02P80/112

摘要： The present invention relates to an intelligent switch capacitor, which comprises a shell. The shell is provided with a capacitor core internally. A temperature sensor is arranged on the capacitor core. A top end of the capacitor core is connected to an intelligent switch wiring board. The intelligent switch wiring board is connected to a single chip computer, a capacity-switch, a temperature measurement module, a current measurement module and a current harmonic component measurement module, wherein the capacitor switch is connected to the capacitor core in an inner triangle way. Beneficial effects of the present invention are: 1. A switch and a power capacitor are integrated into a whole, which can implement quick capacity-switching and cutting of the switch; 2. The capacitor has an electronic thermal protection function; 3. Possibilities of capacitor damages and power grid accidents caused by resonance of a PFC capacitor in a power grid system are eliminated completely; 4. A power capacitor loss is reduced.

摘要翻译： 本发明涉及一种智能开关电容器，其包括外壳。 壳体内部设有电容器核心。 温度传感器布置在电容器芯上。 电容器核心的顶端连接到智能开关接线板。 智能开关接线板连接到单片机，容量开关，温度测量模块，电流测量模块和电流谐波分量测量模块，其中电容器开关以内三角形方式连接到电容器芯 。 本发明的有益效果是：1.开关和功率电容整体集成在一起，可实现开关的快速开关切换; 电容器具有电子热保护功能; 电网系统PFC电容谐振引起的电容器损坏和电网故障的可能性被完全消除; 功率电容损耗减小。

公开(公告)号：US09223331B2

公开(公告)日：2015-12-29

申请号：US13764307

申请日：2013-02-11

申请人： John F. Jackman

发明人： John F. Jackman

IPC分类号： G05F1/70 ,  H02J3/18

CPC分类号： G05F1/70 ,  H02J3/1828 ,  Y02E40/30

摘要： In one example embodiment, a power control system includes one or more stages, a plurality of primary busbars operatively coupled to the one or more stages, and an intelligent controller operatively coupled to the one or more stages. Each of the one or more stages is configured to generate a lead current when coupled in parallel to a power distribution system, and at least one of the one or more stages comprises a notch filter and a power tank circuit. Each of the plurality of primary busbars is configured to carry one phase of a multiple phase power signal. The controller is configured to determine when to switch each of the one or more stages one and off, to count a number of times each stage is switched on, and to track one or more electrical parameters of the power distribution system, power control system, or both.

摘要翻译： 在一个示例实施例中，功率控制系统包括一个或多个级，可操作地耦合到该一个或多个级的多个主母线，以及可操作地耦合到所述一个或多个级的智能控制器。 所述一个或多个级中的每一个被配置为当与配电系统并联耦合时产生引线电流，并且所述一个或多个级中的至少一个级包括陷波滤波器和功率槽电路。 多个主母线中的每一个被配置为承载多相功率信号的一相。 控制器被配置为确定何时切换一个或多个一个或多个阶段中的每一个，以计数每个阶段被接通的次数，并且跟踪配电系统，功率控制系统的一个或多个电参数， 或两者。

公开(公告)号：US20150340867A1

公开(公告)日：2015-11-26

申请号：US14760706

申请日：2013-01-21

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： Daniel Humphrey ,  Mohamed Amin Bemat

IPC分类号： H02J3/16

CPC分类号： H02J3/16 ,  H02J1/102 ,  H02J3/18 ,  H02M1/4208 ,  H02M1/4225 ,  H02M3/1584 ,  H02M7/23 ,  Y02B70/126 ,  Y02E40/30 ,  Y10T307/406

摘要： An apparatus and method alternately transmit power from a first active power factor corrector (22, 122, 222), receiving power from a first alternating current (AC) source (27), and a second active power factor corrector (24, 124, 224), receiving power from a second AC source (28) having at least one line or neutral in common with the first AC power source (27) and in parallel with the first active power factor corrector (22, 122, 222), to a load (30). Current circulation from the first active power factor corrector (22, 122, 222) to the second active power factor corrector (24, 124, 224) and from the second active power factor corrector (24, 124, 224) to the first active power factor corrector (22, 122, 222) is inhibited.

摘要翻译： 一种装置和方法，交替地从第一有功功率因数校正器（22,122,222）发射功率，从第一交流电源（AC）源接收功率和第二有功功率因数校正器（24,124,224） ），从具有与所述第一AC电源（27）共同的至少一个线或中性线并与所述第一有功功率因数校正器（22,122,222）并联的第二AC源（28）接收功率到a 负载（30）。 从第一有功功率因数校正器（22,122,222）到第二有功功率因数校正器（24,124,224）以及从第二有功功率因数校正器（24,124,224）到第一有功功率的电流循环 因子校正器（22,122,222）被抑制。

公开(公告)号：US09134746B2

公开(公告)日：2015-09-15

申请号：US13707583

申请日：2012-12-06

申请人： Varentec, Inc.

发明人： Deepakraj M. Divan ,  Anish Prasai

IPC分类号： G05F5/00 ,  H02J3/18 ,  H02J1/10

CPC分类号： G05F5/00 ,  H02J3/1864 ,  H02J3/1878 ,  Y02E40/12 ,  Y02E40/30

摘要： Systems and methods for harmonic resonance control are described. In some embodiments, a system comprises a first switch-controlled VAR source and a harmonic management block which may each be configured to be coupled to a distribution power network. The first switch-controlled VAR source may comprise a first processor, a voltage compensation component, and a switch. The first processor may be configured to enable the voltage compensation component after a delay by controlling the switch based on first proximate voltage after a duration associated with the delay to adjust voltage volt-ampere reactive. The harmonic management block may be configured to compare a second proximate voltage to at least one resonant threshold to detect potential resonance caused by enablement of the voltage compensation component and to engage based on the comparison the resonance compensation component to manage the potential resonance.

摘要翻译： 描述谐波共振控制的系统和方法。 在一些实施例中，系统包括第一开关控制的VAR源和谐波管理块，其可以被配置为耦合到分配电力网络。 第一开关控制的VAR源可以包括第一处理器，电压补偿部件和开关。 第一处理器可以被配置为通过在与延迟相关联的持续时间之后基于第一接近电压控制开关来在延迟之后启用电压补偿分量，以调整电压伏安反应。 谐波管理块可以被配置为将第二邻近电压与至少一个谐振阈值进行比较，以检测通过启用电压补偿组件而引起的电位谐振，并且基于比较谐振补偿分量来控制潜在共振。

公开(公告)号：US20150233975A1

公开(公告)日：2015-08-20

申请号：US14429155

申请日：2012-11-26

申请人： Mitsubishi Electric Corporation

发明人： Nobuhiko Itaya

IPC分类号： G01R15/18 ,  G01R19/165

CPC分类号： G01R15/18 ,  G01R19/16528 ,  H02J3/12 ,  H02J3/1878 ,  H02J13/00 ,  Y02E40/30 ,  Y02P80/14

摘要： A centralized voltage control device connected, via a communication network, to local voltage control devices connected to voltage control apparatuses, including: a transmission and reception unit receiving the number of times a tap position is changed per fixed time of the voltage control apparatus from the local voltage control device; a dead-zone-width updating unit increasing a dead zone width when the number of times a tap position is changed in a voltage control apparatus of a transformer type is a threshold or larger; and a voltage-upper-and-lower-limit-value determining unit determining the voltage upper limit value and the voltage lower limit value for each local voltage control device and issuing a command regarding these values to each local voltage control device, and determining the voltage upper limit value and the voltage lower limit value of the voltage control apparatus of a transformer type on the basis of the dead zone width.

摘要翻译： 一种集中式电压控制装置，其经由通信网络连接到与电压控制装置连接的本地电压控制装置，所述电压控制装置包括：发送和接收单元，其从所述电压控制装置的每个固定时间接收抽头位置改变次数 本地电压控制装置; 当在变压器型电压控制装置中抽头位置改变的次数为阈值以上时，死区宽度更新单元增加死区宽度; 以及电压上下限确定单元，确定每个局部电压控制装置的电压上限值和电压下限值，并向每个局部电压控制装置发出关于这些值的命令，并且确定 基于死区宽度的变压器型电压控制装置的电压上限值和电压下限值。

公开(公告)号：US09081406B2

公开(公告)日：2015-07-14

申请号：US13706446

申请日：2012-12-06

申请人： Osamu Mori ,  Masatoshi Takeda ,  Shinichi Ogusa

发明人： Osamu Mori ,  Masatoshi Takeda ,  Shinichi Ogusa

IPC分类号： G05F1/70 ,  H02M1/42

CPC分类号： G05F1/70 ,  H02M1/4208 ,  Y02E40/30

摘要： Three-phase thyristor switched capacitors are delta-connected to three-phase AC buses. Each thyristor switched capacitor includes a reactor, a capacitor, and a thyristor switch that are electrically connected in series. The thyristor switches of the three phases are arranged so that the terminal-to-terminal distance between respective thyristor switches of respective phases are not uniform. The three-phase thyristor switched capacitors are configured so that the thyristor switched capacitors of two of the three phases having a shortest terminal-to-terminal distance therebetween are opposite to each other in terms of connection order in which the thyristor switch and the capacitor are electrically connected along a loop path made up of the delta-connected thyristor switched capacitors.

摘要翻译： 三相晶闸管开关电容器与三相交流总线三角形连接。 每个晶闸管开关电容器包括串联电连接的电抗器，电容器和晶闸管开关。 三相的晶闸管开关被布置成使得各相的各个可控硅开关之间​​的端子间距离不均匀。 三相晶闸管开关电容器被配置为使得具有最短的端子间距离的三相中的两相的晶闸管开关电容器在晶闸管开关和电容器的连接顺序方面彼此相反 沿着由三角形连接的晶闸管开关电容器组成的环路电连接。

公开(公告)号：US20150102669A1

公开(公告)日：2015-04-16

申请号：US14511187

申请日：2014-10-10

申请人： Power Quality Engineering Limited

发明人： Neal George Stewart

IPC分类号： H02J3/10 ,  H02J3/38 ,  H02J3/18

CPC分类号： H02M5/293 ,  G05F1/12 ,  G05F1/44 ,  G05F1/445 ,  H02J3/12 ,  H02J3/14 ,  H02J3/18 ,  H02J3/381 ,  H02J3/382 ,  H02J3/383 ,  H02J3/386 ,  H02J3/387 ,  H02M1/32 ,  H02M1/44 ,  H02M5/22 ,  H02M5/257 ,  H02M5/275 ,  Y02B10/14 ,  Y02E10/563 ,  Y02E10/763 ,  Y02E40/30 ,  Y10T307/352

摘要： In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the electrical power point of use (POU).

摘要翻译： 在现有的传统电力发电和配电系统中，通过一系列破坏性技术和立法影响，向终端消费者传递的电力质量正在恶化; 特别是随着无数私营和经营的家庭和商业分布式能源发电（DEG）设备的迅速增加，这些设备连接在低压（LV）配电网络的任何一点。 本发明通过提供包括安装在电力使用点（POU）上的能量处理单元（EPU）的解决方案来绕过这个日益增长的临界DEG问题。

公开(公告)号：US08988907B2

公开(公告)日：2015-03-24

申请号：US13295370

申请日：2011-11-14

申请人： Robert J. Nelson

发明人： Robert J. Nelson

IPC分类号： H02J1/02 ,  H02J3/18 ,  H02J3/24 ,  H02J1/14

CPC分类号： H02J3/1878 ,  H02J3/24 ,  Y02E40/30

摘要： An apparatus for compensating a power system transmission line (46). The apparatus comprises an autotransformer (40) disposed in series with the transmission line (46). An autotransformer series winding (40A) extends from an input terminal (46) to a neutral terminal (44) and a common winding (40B) extends from an output terminal (54) to the neutral terminal (44). A compensating device (42) is connected between the neutral terminal (44) and ground. Although connected in shunt with the transmission line (46), the compensating device (42) operates as a series-connected compensating device relative to the transmission line (46). The autotransformer (40) can be connected in a buck or a boost configuration with a fixed or moveable winding tap (88). Also, two autotransformers (110, 114) can be connected in a back-to-back configuration with the compensating device (42) connected to either autotransformer (110, 114).

摘要翻译： 一种用于补偿电力系统传输线（46）的装置。 该装置包括与传输线（46）串联布置的自耦变压器（40）。 自耦变压器串联绕组（40A）从输入端子（46）延伸到中性端子（44），并且公共绕组（40B）从输出端子（54）延伸到中性端子（44）。 补偿装置（42）连接在中性端子（44）和地之间。 虽然与传输线（46）分流连接，但是补偿装置（42）相对于传输线（46）作为串联连接的补偿装置工作。 自耦变压器（40）可以用降压或升压配置与固定或可移动的绕组丝锥（88）连接。 而且，两个自耦变压器（110,114）可以背对背配置连接，而补偿装置（42）连接到自耦变压器（110,114）。