公开(公告)号：US20040150377A1

公开(公告)日：2004-08-05

申请号：US10646849

申请日：2003-08-22

Inventor： Joseph F. Elek ,  Jeffrey G. Felty ,  Neil A. Kammiller ,  Dennis F. Knurek

IPC: G05F001/70

CPC classification number: H02M1/34 ,  H02M1/32 ,  H02M1/4216 ,  H02M3/285 ,  H02M3/3376 ,  H02M7/003 ,  H02M2001/0012 ,  H02M2001/007 ,  H02M2001/0074 ,  H02M2001/346 ,  H02M2007/53878 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A power system having a power factor correction circuit includes a power circuit. The power circuit includes first and second input capacitors, first and second coupled inductors, first and second switches, and an output circuit. The first and second input capacitors form a bank node. The first and second switches are connected to the first and second inductors and the bank node. Likewise, the first an second input capacitors are connected to the first and second inductors. The output circuit is operable to produce an output voltage. A control circuit is operable to monitor the output voltage and produce a switch signal. A drive circuit is coupled to the control circuit and the first and second switches and is operable to operate the first and second switches based on the switch signal.

Abstract translation: 具有功率因数校正电路的电力系统包括电源电路。 电源电路包括第一和第二输入电容器，第一和第二耦合电感器，第一和第二开关以及输出电路。 第一和第二输入电容器形成一个bank节点。 第一和第二开关连接到第一和第二电感器和存储体节点。 同样地，第一个第二输入电容器连接到第一和第二电感器。 输出电路可操作以产生输出电压。 控制电路可操作以监视输出电压并产生开关信号。 驱动电路耦合到控制电路和第一和第二开关，并且可操作以基于开关信号来操作第一和第二开关。

公开(公告)号：US20040090212A1

公开(公告)日：2004-05-13

申请号：US10646755

申请日：2003-08-25

Applicant: UIS Abler Electronics Co., Ltd.

Inventor： Chin-Chang Wu ,  Hurng-Liang Chou ,  Wen-Pin Hsu ,  Yao-Jen Chang

IPC: G05F001/70

CPC classification number: G05F1/70

Abstract: A hybrid reactive power compensation device comprises a passive type reactive power compensator and an active type reactive power compensator serially connected thereto. The passive type reactive power compensator is an AC power capacitor adapted to provide the reactive power that reduces capacity of the active type reactive power compensator. The active type reactive power compensator is consisted of a power converter, a DC capacitor, a high-frequency ripple filter and a controller. The hybrid reactive power compensation device can supply a linearly adjustable reactive power within a predetermined range, and is adapted to supply a current with a nearly sinusoidal waveform. Therefore, it can avoid the destruction of AC power capacitor caused by the power resonance.

Abstract translation: 混合无功功率补偿装置包括无源式无功功率补偿器和与其串联的有源型无功功率补偿器。 无源型无功功率补偿器是适于提供无功功率的AC功率电容器，其降低有源型无功功率补偿器的容量。 有源型无功补偿器由功率转换器，直流电容器，高频纹波滤波器和控制器组成。 混合无功补偿装置可以在预定范围内提供可线性调节的无功功率，并且适于提供具有接近正弦波形的电流。 因此，可以避免由功率谐振引起的交流电源电容的破坏。

公开(公告)号：US20020180408A1

公开(公告)日：2002-12-05

申请号：US10162406

申请日：2002-06-04

Inventor： William D. McDaniel ,  Gail A. McDaniel ,  Timothy J. McDaniel

IPC: G05F001/70

CPC classification number: G05F1/70 ,  H02J3/1828 ,  H02J3/1871 ,  Y02E40/30

Abstract: An automatic power factor correction system, for an electrical power installation drawing varying levels of reactive power, measures an electrical parameter of the power drawn by a load of a power installation which is capable of indicating a level of reactive power drawn by the load and couples a combination of capacitors to the power line to compensate for the level of reactive power indicated by the electrical parameter measured. In particular, the system measures the phase angle of the power drawn and calculates a combination of capacitors to connect to the power line to compensate for a measured level of reactive power.

Abstract translation: 一种自动功率因数校正系统，用于绘制不同级别的无功功率的电力设备，测量由能够指示由负载和耦合引起的无功功率水平的电力设备的负载所牵引的电力的电参数 将电容器组合到电力线，以补偿由所测量的电参数指示的无功功率电平。 特别地，该系统测量所耗电的相位角，并且计算电容器的组合以连接到电力线以补偿测量的无功功率水平。

公开(公告)号：US20020003419A1

公开(公告)日：2002-01-10

申请号：US09861897

申请日：2001-05-22

Inventor： Yukihiro Nishikawa

IPC: G05F001/00 ,  G05F001/70 ,  G05F003/00 ,  H02J003/08 ,  G05F005/00

CPC classification number: H02M3/337

Abstract: In a DC/DC converter including a half-wave rectifying circuit of a diode and a capacitor for rectifying a voltage occurring on a secondary side of an insulated transformer, an ON period of one of switch elements has a fixed duration, permitting control of an ON period of the other switch element in order to achieve a constant DC output voltage. Since the switching frequency varies only during the ON period of the controlled switch element, an increase in switching frequency is restrained during a period in which the circuit carries light loads.

公开(公告)号：US20040245963A1

公开(公告)日：2004-12-09

申请号：US10825399

申请日：2004-04-15

Inventor： Roger D. Campana

IPC: G05F001/70

CPC classification number: H03H11/30

Abstract: According to some embodiments, a feedback circuit receives a signal, the signal corresponding to a proximity of an existing operation point of a system to a resonant operation point of the system, and determines if a self-impedance of the system should be changed based on the signal.

Abstract translation: 根据一些实施例，反馈电路接收信号，该信号对应于系统的现有操作点与系统的谐振操作点的接近，并且确定系统的自身阻抗是否应当基于 信号。

公开(公告)号：US20040046531A1

公开(公告)日：2004-03-11

申请号：US10416633

申请日：2003-09-22

Inventor： Vincenzo Ferraro ,  Emilio Ferraro

IPC: G05F001/70

CPC classification number: H02J3/1835 ,  H02J3/01 ,  Y02E40/30 ,  Y02E40/40

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20030098672A1

公开(公告)日：2003-05-29

申请号：US10032557

申请日：2002-01-02

Applicant: ABB AB

Inventor： Lennart Wernersson

IPC: G05F001/70

CPC classification number: H02J3/1821 ,  H02J3/1864 ,  Y02E40/12 ,  Y02E40/30

Abstract: An industrial load, preferably an electric arc furnace or a plant for rolling of metallic materials, is supplied from a three-phase electric ac network. A device for compensation of the reactive power consumption of the load comprises a first compensation device for controllable consumption of reactive power and a second compensation device for generation of reactive power, both connected to the electric power network in a parallel connection with the load. The first compensation device comprises a thyristor-controlled reactor for each of the phases of the ac network. Control equipment is supplied with measured values of sensed amplitude values for voltages and currents. The control equipment comprises means for forming a voltage mean value as the mean value of the sensed amplitude values of voltage, and means for forming, for each of the thyristor-controlled reactors, an amplitude deviation as a difference of the voltage mean value and the amplitude value associated with the thyristor-controlled reactor, and means for forming, for each of the thyristor-controlled reactors, a separate control order in dependence on the amplitude deviation for the respective thyristor-controlled reactor.

Abstract translation: 工业负载，优选电弧炉或用于轧制金属材料的设备由三相电交流网络提供。 用于补偿负载的无功功率消耗的装置包括用于可控制地消耗无功功率的第一补偿装置和用于产生无功功率的第二补偿装置，两者都与负载并联连接到电力网络。 第一补偿装置包括用于ac网络的每个相的晶闸管控制的反应器。 控制设备提供测量的电压和电流幅度值的值。 控制设备包括用于形成电压平均值作为感测到的电压幅度值的平均值的装置，以及用于为每个可控硅控制电抗器形成作为电压平均值和 与晶闸管控制的反应器相关联的振幅值，以及用于对于每个可控硅控制的反应器，根据相应的晶闸管控制反应器的振幅偏差形成单独的控制顺序的装置。

公开(公告)号：US20020190696A1

公开(公告)日：2002-12-19

申请号：US10151406

申请日：2002-05-17

Inventor： Yair Darshan

IPC: G05F001/70

CPC classification number: H02M1/4258 ,  H02H9/001 ,  H02J1/04 ,  H02M1/143 ,  H02M1/4208 ,  H02M3/157 ,  H02M3/1584 ,  H02M2001/008 ,  H02M2001/0093 ,  H02M2003/1557 ,  Y02B70/126 ,  Y02P80/112

Abstract: Power supply apparatus includes a power factor corrector (PFC) unit, which is adapted to receive an AC voltage from an AC source, and to smooth the AC voltage while adjusting a waveform of an AC input current from the AC source relative to the AC voltage so as to generate a PFC output voltage made up of a DC component with a residual AC ripple. A regulator is coupled to receive an indication of a ripple amplitude and a ripple phase of the residual AC ripple and to generate, responsive thereto, a correction voltage which is combined with the PFC voltage to generate a DC output voltage in which the AC ripple is substantially reduced relative to the PFC voltage.

Abstract translation: 电源装置包括功率因数校正器（PFC）单元，其适于从AC源接收AC电压，并且在调整来自AC源的AC输入电流的波形相对于AC电压的同时平滑AC电压 以便产生由具有残余AC纹波的DC分量组成的PFC输出电压。 耦合一个稳压器以接收残余AC纹波的纹波幅度和纹波相位的指示，并响应于此产生与PFC电压组合的校正电压，以产生其中AC纹波为 相对于PFC电压大大降低。

公开(公告)号：US20020017900A1

公开(公告)日：2002-02-14

申请号：US09902774

申请日：2001-07-10

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Katsutoshi Takeda ,  Toshihiro Kinoshita

IPC: G05F001/70

CPC classification number: H02S20/23 ,  H01L31/02021 ,  Y02B10/12 ,  Y02E10/50 ,  Y10S136/291

Abstract: Two types of solar cell modules having an equal output voltage and different sizes are used, and a plurality of solar cell modules of these two types are installed so that they are connected in parallel. The size of a solar cell module having two solar cell sub-modules is two times larger than the size of a solar cell module including one solar cell sub-module. By connecting two power generating regions of each of the solar cell sub-modules of the former solar cell module in parallel, connecting adjacent two solar cell sub-modules in series and connecting two power generating regions of the solar cell sub-module of the latter solar cell module in series, an equal output voltage is obtained from both of the solar cell modules.

Abstract translation: 使用具有相同输出电压和不同尺寸的两种类型的太阳能电池模块，并且安装这两种类型的多个太阳能电池模块，使得它们并联连接。 具有两个太阳能电池子模块的太阳能电池模块的尺寸是包括一个太阳能电池子模块的太阳能电池模块的尺寸的两倍。 通过并联连接前一个太阳能电池模块的每个太阳能电池子模块的两个发电区域，将相邻的两个太阳能电池子模块串联连接并连接后者的太阳能电池子模块的两个发电区域 串联的太阳能电池模块，从两个太阳能电池模块获得相等的输出电压。

公开(公告)号：US20040245964A1

公开(公告)日：2004-12-09

申请号：US10489691

申请日：2004-08-04

Inventor： Gerard Cornelis Schoonenberg

IPC: G05F001/70

CPC classification number: H01H9/563

Abstract: Three-phase system comprising a three-phase power source and a three-pole switch, through which the phase terminals of the three-phase power source can be connected to a load network. A reference time detector is present for determining a reference point in time. A drive control circuit is provided for controlling the poles of the switch. The poles of the three-pole switch are switched at controlled times at different intervals with respect to the reference time. The time of the contact touch of the first pole is after 185null plus the maximum anticipated pre-ignition time increased by n times 180null after the zero crossing of the voltage between the first and second pole. The times of contact touch of the second pole and the third pole are respectively at n1 times the frequency period increased by 120null and increased by n times 180null and at n2 times the frequency period increased by 240null and increased by n times 180null after the time of contact touch of the first pole, where n is equal to zero or a whole number.

Abstract translation: 三相系统包括三相电源和三极开关，三相电源的相位端可以通过三相电源连接到负载网络。 存在用于确定参考点的参考时间检测器。 提供驱动控制电路来控制开关的极点。 相对于参考时间，三极开关的极点以不同的间隔在受控时间切换。 第一极接触触点的时间在185°加上在第一和第二极之间的电压过零之后，最大预期预燃时间增加了n倍180°。 第二极和第三极的接触触摸次数分别为频率周期增加120°的n1倍，并且增加了n倍180°，频率周期的n2倍增加了240°，并且增加了n倍180° 在第一极接触触摸的时间之后，其中n等于零或整数。