公开(公告)号：US20100066173A1

公开(公告)日：2010-03-18

申请号：US12624516

申请日：2009-11-24

Applicant: Lennart Angquist

Inventor： Lennart Angquist

IPC: H02J7/00

CPC classification number: H02J11/00 ,  H02J7/025 ,  H02J50/12 ,  H02J50/40 ,  Y10T307/625

Abstract: A power supply apparatus includes a coupling capacitor arranged to be connected on its first end to ground; a transformer including a primary winding and a secondary winding; a first rectifier bridge connected in parallel with the secondary winding; and an energy storage, to which a load is arranged to be connected. The primary winding is arranged to be connected between a second end of the coupling capacitor and a high voltage transmission line such that all current between the second end of the coupling capacitor and the high voltage transmission line passes through the primary winding. The energy storage is arranged to be charged by means of a current passing through the first rectifier bridge. Furthermore, the power supply apparatus includes a bypasser. A corresponding three-phase apparatus is also presented.

Abstract translation: 电源装置包括耦合电容器，其布置成在其第一端连接到地; 包括初级绕组和次级绕组的变压器; 与次级绕组并联连接的第一整流桥; 以及负载被连接到的能量存储器。 初级绕组被布置成连接在耦合电容器的第二端和高压传输线之间，使得耦合电容器的第二端和高压传输线之间的所有电流通过初级绕组。 能量存储器被布置成通过穿过第一整流桥的电流进行充电。 此外，电源装置包括旁路器。 还提出了相应的三相设备。

公开(公告)号：US4318167A

公开(公告)日：1982-03-02

申请号：US114171

申请日：1980-01-22

Applicant: Lennart Angquist

Inventor： Lennart Angquist

IPC: H02M7/497 ,  H02M7/515 ,  H02M1/12

CPC classification number: H02M7/497

Abstract: An electrical inverter with controllable output voltage comprises a three-phase self-commutated inverter bridge which is supplied from a d.c. voltage source. A reference signal generator generates a three-phase binary reference signal for controlling the shape of the curve of the output voltage of the inverter. This signal is modulated or mixed in a mixing stage with a binary pulse train having a controllable pulse-width ratio and a relatively high frequency. The output signal from the mixing stage is supplied to the inverter bridge in such a way that the output voltage of the inverter bridge corresponds to the product of the reference signal and the pulse train.

Abstract translation: 具有可控输出电压的电气逆变器包括一个三相自换向逆变桥，由三相交流供电。 电压源。 参考信号发生器产生用于控制逆变器的输出电压的曲线形状的三相二进制参考信号。 该信号在具有可控脉冲宽度比和相对高频率的二进制脉冲串的混合阶段被调制或混合。 来自混合级的输出信号以逆变器桥的输出电压对应于参考信号和脉冲串的乘积的方式提供给逆变器桥。

公开(公告)号：US4156898A

公开(公告)日：1979-05-29

申请号：US915837

申请日：1978-06-15

Applicant: Anders Broms ,  Lennart Angquist

Inventor： Anders Broms ,  Lennart Angquist

IPC: H02M3/135 ,  H02M7/515

CPC classification number: H02M3/135

Abstract: A DC convertor for converting power at a particular input voltage level to a higher or a lower voltage level and operable despite changes in the direction of power flux between the input and output voltage levels. Main switching thyristors operate in conjunction with turn-off thyristors, a commutation capacitor, magnetically coupled inductor windings and bypass diodes to define the magnitude and direction of the flow of current in the convertor and the voltage conversion ratio of the convertor.

Abstract translation: 一种DC转换器，用于将特定输入电压电平的功率转换到较高或较低的电压电平，并且尽管在输入和输出电压电平之间的功率通量的方向发生变化，但是其可操作。 主开关晶闸管与关断晶闸管，换向电容器，磁耦合电感绕组和旁路二极管结合起来，以定义转换器中电流的大小和方向以及转换器的电压转换比。

公开(公告)号：US20110254518A1

公开(公告)日：2011-10-20

申请号：US13169747

申请日：2011-06-27

Applicant: Lennart Angquist ,  Lars Paulsson ,  Ake Petersson ,  Bjorn Thordvaldsson

Inventor： Lennart Angquist ,  Lars Paulsson ,  Ake Petersson ,  Bjorn Thordvaldsson

IPC: G05F1/70

CPC classification number: H02J3/1864 ,  Y02E40/12

Abstract: A one-phase static var compensator apparatus includes a compensator string consisting of a first static var compensator connected serially to a thyristor valve. The compensator string is arranged to be connected on its first end to one phase of a transmission grid of a rated voltage exceeding 69 kV. Moreover, the thyristor valve includes a plurality of thyristors connected serially and the compensator string is arranged to be directly connected to the transmission grid. A corresponding three phase apparatus is also presented.

Abstract translation: 单相静态无功补偿装置包括由串联连接到晶闸管阀的第一静态无功补偿器组成的补偿器串。 补偿器串被布置成在其第一端连接到额定电压超过69kV的输电网的一相。 此外，晶闸管阀包括串联连接的多个晶闸管，并且补偿器串被布置为直接连接到传输格栅。 还提出了相应的三相设备。

公开(公告)号：US07986132B2

公开(公告)日：2011-07-26

申请号：US12620996

申请日：2009-11-18

Applicant: Lennart Angquist ,  Lars Paulsson ,  Ake Petersson ,  Bjorn Thordvaldsson

Inventor： Lennart Angquist ,  Lars Paulsson ,  Ake Petersson ,  Bjorn Thordvaldsson

IPC: G05F1/00 ,  G05F3/00 ,  G05F1/70 ,  G05F5/00

CPC classification number: H02J3/1864 ,  Y02E40/12

Abstract: A one-phase static var compensator apparatus includes a compensator string consisting of a first static var compensator connected serially to a thyristor valve. The compensator string is arranged to be connected on its first end to one phase of a transmission grid of a rated voltage exceeding 69 kV. Moreover, the thyristor valve includes a plurality of thyristors connected serially and the compensator string is arranged to be directly connected to the transmission grid. A corresponding three phase apparatus is also presented.

Abstract translation: 单相静态无功补偿装置包括由串联连接到晶闸管阀的第一静态无功补偿器组成的补偿器串。 补偿器串被布置成在其第一端连接到额定电压超过69kV的输电网的一相。 此外，晶闸管阀包括串联连接的多个晶闸管，并且补偿器串被布置为直接连接到传输格栅。 还提出了相应的三相设备。

公开(公告)号：US20090134850A1

公开(公告)日：2009-05-28

申请号：US12280656

申请日：2007-02-22

Applicant: Bertil Berggren ,  Lennart Angquist

Inventor： Bertil Berggren ,  Lennart Angquist

IPC: G05F5/04

CPC classification number: H02J3/1814 ,  H02J3/1878 ,  Y02E40/18 ,  Y02E40/30

Abstract: A method for controlling the power flow in an ac transmission line including prompt handling of voltage recovery and only thereafter thermal constraints.

Abstract translation: 一种用于控制交流传输线中的功率流的方法，其包括电压恢复的迅速处理以及之后的热约束。

公开(公告)号：US06559561B1

公开(公告)日：2003-05-06

申请号：US09700982

申请日：2000-12-15

Applicant: Lennart Angquist

Inventor： Lennart Angquist

IPC: H02J102

CPC classification number: H02J3/24

Abstract: In a method for damping power oscillations in a transmission line, at least one first angular-frequency signal is generated, representing a first angular frequency which is given by a prior knowledge of oscillation frequencies expected in the power system, and a first phase-reference signal is formed as the time integral of the angular-frequency signal. A power quantity in the transmission line characterizing the power is sensed and a first estimated power quantity is formed, representing for an oscillation of the first angular frequency, its amplitude and phase position relative to the first phase-reference signal. A first damping signal is formed with an amplitude dependent on the amplitude of the first estimated power quantity and with a first phase shift in relation to the phase position thereof, and the first damping signal is supplied to an actuator for influencing the power transmitted in the transmission line.

Abstract translation: 在一种用于阻尼传输线中的功率振荡的方法中，产生至少一个第一角频率信号，其表示由电力系统中预期的振荡频率的先前知识给出的第一角频率，以及第一相位参考 信号形成为角频率信号的时间积分。 检测表征功率的传输线路中的功率量，并且形成第一估计功率量，代表第一角频率的振荡，相对于第一相位参考信号的振幅和相位位置。 形成第一衰减信号，其幅度取决于第一估计功率量的振幅，并且相对于其相位位置具有第一相移，并且第一阻尼信号被提供给致动器，用于影响在 传输线。

公开(公告)号：US5583883A

公开(公告)日：1996-12-10

申请号：US325308

申请日：1994-10-24

Applicant: Lars Paulsson ,  Lennart Angquist

Inventor： Lars Paulsson ,  Lennart Angquist

IPC: F27B3/08 ,  H02M1/08 ,  H05B7/148 ,  H05B7/144

CPC classification number: H05B7/148 ,  F27B3/085 ,  H02M1/08 ,  Y02P10/256 ,  Y02P10/259

Abstract: An arc furnace (1) has an electrode (13) and connection members (14) for connection to a power-supply network (20) for supplying an arc (16) at the electrode with current. The furnace is provided with a voltage-pulse generating member (3) adapted, in connection with an interruption in the arc, to supply voltage pulses to the furnace for striking the arc.

Abstract translation: PCT No.PCT / SE94 / 00072 Sec。 371日期：1994年10月24日 102（e）日期1994年10月24日PCT 1994年1月31日PCT PCT。 公开号WO94 / 22279 日期1994年9月29日电弧炉（1）具有用于连接到供电网络（20）的电极（13）和连接构件（14），用于在电极处向电极提供电弧（16）。 该炉设置有电压脉冲发生部件（3），该电压脉冲发生部件（3）适用于与电弧中断相关的电压脉冲供应给炉的电弧脉冲。

公开(公告)号：US08154896B2

公开(公告)日：2012-04-10

申请号：US12722916

申请日：2010-03-12

Applicant: Lennart Angquist

Inventor： Lennart Angquist

IPC: H02M7/145

CPC classification number: H02J3/1842 ,  Y02E40/16 ,  Y02E40/22 ,  Y10T307/685

Abstract: A static compensator system for providing reactive and/or active power to a power network. The system includes a static compensator, which has a DC capacitor Ud and a voltage source converter. The static compensator is connected to an energy storage device. The system further includes a booster converter device connected in series with the energy storage device and in parallel with the DC capacitor Ud of the static compensator. The booster converter device and the energy storage device are further connected in parallel with the voltage source converter of the static compensator.

Abstract translation: 一种用于向电力网络提供无功和/或有功功率的静态补偿器系统。 该系统包括具有直流电容器Ud和电压源转换器的静态补偿器。 静态补偿器连接到能量存储装置。 该系统还包括与能量存储装置串联连接并与静态补偿器的直流电容器Ud并联连接的升压转换器装置。 升压转换器装置和能量存储装置进一步与静态补偿器的电压源转换器并联连接。

公开(公告)号：US20100171472A1

公开(公告)日：2010-07-08

申请号：US12722916

申请日：2010-03-12

Applicant: Lennart Angquist

Inventor： Lennart Angquist

IPC: G05F1/70

CPC classification number: H02J3/1842 ,  Y02E40/16 ,  Y02E40/22 ,  Y10T307/685

Abstract: A static compensator system for providing reactive and/or active power to a power network. The system includes a static compensator, which has a DC capacitor Ud and a voltage source converter. The static compensator is connected to an energy storage device. The system further includes a booster converter device connected in series with the energy storage device and in parallel with the DC capacitor Ud of the static compensator. The booster converter device and the energy storage device are further connected in parallel with the voltage source converter of the static compensator.

Abstract translation: 一种用于向电力网络提供无功和/或有功功率的静态补偿器系统。 该系统包括具有直流电容器Ud和电压源转换器的静态补偿器。 静态补偿器连接到能量存储装置。 该系统还包括与能量存储装置串联连接并与静态补偿器的直流电容器Ud并联连接的升压转换器装置。 升压转换器装置和能量存储装置进一步与静态补偿器的电压源转换器并联连接。