公开(公告)号：US20020176265A1

公开(公告)日：2002-11-28

申请号：US10031254

申请日：2002-05-30

发明人： Donald Colin Murray Oates

IPC分类号： H02J003/36

CPC分类号： H02M5/225 ,  H02J3/00 ,  Y10T307/944

摘要： A substation (100) is disclosed for use in a power transmission and distribution network. The substation comprises a single phase isolating high frequency transformer (101) having at least one input winding (112, 113) and at least one output winding (114-117) with corresponding input (104) and output (105) solid state switching networks. Each input solid state switching network (104) comprises a plurality of semiconductor switching devices which receive an input waveform from the transmission network and output a high frequency waveform to the primary winding of the transformer. Likewise, each output solid state switching network (105a-105d) comprises a plurality of semiconductor switching devices receiving a high frequency waveform from the secondary winding (114-117) of the transformer and outputting an output frequency waveform from the substation. A control means (110) is adapted to control the operation of the switching device of the input and output switching networks (104, 105) to generate the output waveform from the input waveform.

摘要翻译： 变电站（100）被公开用于输配电网络。 变电站包括具有至少一个输入绕组（112,113）和至少一个具有相应输入（104）和输出（105）固态开关网络的输出绕组（114-117）的单相绝缘高频变压器（101） 。 每个输入固态开关网络（104）包括多个半导体开关器件，其接收来自传输网络的输入波形并将高频波形输出到变压器的初级绕组。 类似地，每个输出固态开关网络（105a-105d）包括从变压器的次级绕组（114-117）接收高频波形的多个半导体开关器件，并从变电站输出输出频率波形。 控制装置（110）适于控制输入和输出交换网络（104,105）的开关装置的操作，以从输入波形产生输出波形。

公开(公告)号：US20030198065A1

公开(公告)日：2003-10-23

申请号：US10457722

申请日：2003-06-10

发明人： Hidetake Hayashi ,  Hitoshi Takimoto ,  Touru Yoshioka

IPC分类号： H02J003/36

CPC分类号： H02M7/493 ,  H02M5/4505 ,  H02M5/451 ,  H02M5/4585 ,  H02P9/305

摘要： An inverter includes a DC power supply circuit, an inverter circuit having a plurality of switching elements and switching an output of the DC power supply circuit on the basis of a PWM signal to deliver a high-frequency voltage, a filter circuit converting the high-frequency voltage to a substantially sinusoidal AC voltage, a power detector detecting an effective or wattless power of the AC power, a phase angle calculator calculating a phase angle of current relative to voltage from the detected effective or wattless power, a phase detector detecting a leading or lagging state of the phase angle, and a controller decreasing a frequency of the output voltage when the phase detector detects the leading state of the phase angle, the controller increasing the frequency of the output voltage when the phase detector detects the lagging state of the phase angle.

摘要翻译： 逆变器包括直流电源电路，具有多个开关元件的逆变器电路，并且基于PWM信号切换直流电源电路的输出以提供高频电压;滤波电路， 频率电压到基本正弦交流电压，功率检测器检测交流电源的有效或无功功率;相位角计算器，根据检测到的有效或无功功率计算电流相对于电压的相位角;相位检测器，检测前导 或相位角的滞后状态，以及当相位检测器检测到相位角的引导状态时控制器降低输出电压的频率，当相位检测器检测到相位角的滞后状态时，控制器增加输出电压的频率 相位角。

公开(公告)号：US20020024828A1

公开(公告)日：2002-02-28

申请号：US09938856

申请日：2001-08-27

发明人： Hidetake Hayashi ,  Hitoshi Takimoto ,  Touru Yoshioka

IPC分类号： H02J003/36

CPC分类号： H02M7/493 ,  H02M5/4505 ,  H02M5/451 ,  H02M5/4585 ,  H02P9/305

摘要： An inverter includes a DC power supply circuit, an inverter circuit having a plurality of switching elements and switching an output of the DC power supply circuit on the basis of a PWM signal to deliver a high-frequency voltage, a filter circuit converting the high-frequency voltage to a substantially sinusoidal AC voltage, a power detector detecting an effective or wattless power of the AC power, a phase angle calculator calculating a phase angle of current relative to voltage from the detected effective or wattless power, a phase detector detecting a leading or lagging state of the phase angle, and a controller decreasing a frequency of the output voltage when the phase detector detects the leading state of the phase angle, the controller increasing the frequency of the output voltage when the phase detector detects the lagging state of the phase angle.

摘要翻译： 逆变器包括直流电源电路，具有多个开关元件的逆变器电路，并且基于PWM信号切换直流电源电路的输出以提供高频电压;滤波电路， 频率电压到基本正弦交流电压，功率检测器检测交流电源的有效或无功功率;相位角计算器，根据检测到的有效或无功功率计算电流相对于电压的相位角;相位检测器，检测前导 或相位角的滞后状态，以及当相位检测器检测到相位角的引导状态时控制器降低输出电压的频率，当相位检测器检测到相位角的滞后状态时，控制器增加输出电压的频率 相位角。

公开(公告)号：US20030151932A1

公开(公告)日：2003-08-14

申请号：US10365980

申请日：2003-02-13

申请人： SEMIKRON ELEKTRONIK GMBH

发明人： Rudiger Bode ,  Gunther Katzenberger

IPC分类号： H02J003/36

CPC分类号： H02M1/0845

摘要： A control circuit for current converter valves includes at a user-specific request unit, a digital transmission unit, and at least one interchangeable system-specific control unit. The control unit includes at least one control circuit with a digital interface, a digital processor and analog components for directly controlling the at least one current converter valve.

摘要翻译： 用于电流转换器阀的控制电路包括用户特定请求单元，数字传输单元和至少一个可互换系统专用控制单元。 控制单元包括具有数字接口的至少一个控制电路，数字处理器和用于直接控制至少一个电流转换阀的模拟组件。

公开(公告)号：US20020075701A1

公开(公告)日：2002-06-20

申请号：US10002847

申请日：2001-11-14

申请人： American Superconductor Corporation, a Delaware corporation

发明人： Thomas Gregory Hubert ,  Douglas C. Folts ,  Warren Elliott Buckles

IPC分类号： H02J003/36

CPC分类号： H02J3/1842 ,  Y02E40/22

摘要： Power compensation is provided from a power compensation device to a utility power network carrying a nominal voltage. The power compensation device has a steady-state power delivery characteristic. The power compensation is provided by detecting a change of a predetermined magnitude in the nominal voltage on the utility power network and controlling the power compensation device to deliver, for a first period of time and in response to the detected change in the nominal voltage, reactive power to the utility power network. The power compensation device is controlled to deliver, for a second period of time following the first period of time, reactive power to the utility power network at a level that is a factor N (N>1) greater than the steady-state power delivery characteristic of the power compensation device.

摘要翻译： 功率补偿从功率补偿装置提供给承载标称电压的公用电力网络。 功率补偿装置具有稳态功率传递特性。 通过检测公用电力网络上的额定电压中的预定幅度的变化来提供功率补偿，并且控制功率补偿装置在第一时间段内并且响应于检测到的标称电压的变化而响应 电力公用电力网络。 功率补偿装置被控制以在第一时间段之后的第二时间段内以大于稳态功率输送的因子N（N> 1）的水平传送到公用电力网络的无功功率 功率补偿装置的特点。

公开(公告)号：US20030007369A1

公开(公告)日：2003-01-09

申请号：US10224406

申请日：2002-08-21

发明人： Mark G. Gilbreth ,  Joel B. Wacknov ,  Simon R. Wall

IPC分类号： H02J003/36

CPC分类号： H02J1/14 ,  H02J1/10

摘要： A power controller provides a distributed generation power networking system in which bidirectional power converters are used with a common DC bus for permitting compatibility between various energy components. Each power converter operates essentially as a customized bi-directional switching converter configured, under the control of the power controller, to provide an interface for a specific energy component to the DC bus. The power controller controls the way in which each energy component, at any moment, will sink or source power, and the manner in which the DC bus is regulated. In this way, various energy components can be used to supply, store and/or use power in an efficient manner. The various energy components include energy sources, loads, storage devices and combinations thereof.

摘要翻译： 功率控制器提供分布式发电电力网络系统，其中双向功率转换器与公共DC总线一起使用，以允许各种能量组件之间的兼容性。 每个功率转换器基本上作为在功率控制器的控制下配置的定制双向开关转换器来提供到DC母线的特定能量分量的接口。 功率控制器控制任何时候每个能量分量将下沉或输出功率的方式，以及直流母线的调节方式。 以这种方式，可以使用各种能量组件以有效的方式提供，存储和/或使用电力。 各种能量组件包括能源，负载，存储装置及其组合。

公开(公告)号：US20020110007A1

公开(公告)日：2002-08-15

申请号：US09746437

申请日：2000-12-21

发明人： Gabor Kalman ,  Colin Huggett

IPC分类号： H02J003/36

CPC分类号： H02J3/36 ,  H02M7/219

摘要： A system includes a permanent magnet generator, a dc link, an inverter coupled between the generator and the dc link, and a control for the inverter. The control regulates dc link voltage by adjusting the load angle and voltage magnitude of inverter ac terminal voltage with respect to emf of the machine.

摘要翻译： 一种系统包括永磁发电机，直流链路，耦合在发电机和直流链路之间的逆变器以及逆变器的控制。 该控制通过调整逆变器交流端子电压相对于机器的电动势的负载角度和电压幅度来调节直流母线电压。

公开(公告)号：US20030223251A1

公开(公告)日：2003-12-04

申请号：US10300403

申请日：2002-11-20

发明人： Peter W. Hammond

IPC分类号： H02J003/36

CPC分类号： H02M5/4585

摘要： A control method and apparatus to reduce current through a DC capacitor linking two converters causes the value of the DC-side current output of the first converter to approach the value of the DC-side input current into the second converter, thus minimizing the DC capacitor current which is equal to the difference between the output current from the first converter and the input current into the second converter.

摘要翻译： 通过连接两个转换器的直流电容器来减小电流的控制方法和装置使得第一转换器的直流侧电流输出的值接近到第二转换器的直流侧输入电流的值，从而最小化直流电容器 电流等于来自第一转换器的输出电流与进入第二转换器的输入电流之间的差。

公开(公告)号：US20020085396A1

公开(公告)日：2002-07-04

申请号：US09445474

申请日：1999-12-08

发明人： BRUNO HALVARSSON ,  LARS HERMANSSON

IPC分类号： H02J003/36

CPC分类号： H02J3/36 ,  Y02E60/60

摘要： A plant for transmitting electric power with a direct voltage network and at least two stations connected thereto with line commutated valves (15, 16) with bidirectionally controlled thyristors (BCT) with ability to conduct current in both directions therethrough as rectifying semiconductor components, comprises at least one cable (12) with an insulating mantle with a polymer base surrounding the conductor thereof for forming the direct voltage network interconnecting the stations. The plant has also a unit (21) adapted to control the thyristors of the valves for changing the power feeding direction between the stations through changing the current direction in said cable.

摘要翻译： 一种用直流电压网络传输电力的工厂和至少两个与其连接的线路换向阀（15,16）的工位，具有双向控制的晶闸管（BCT），其具有通过其作为整流半导体部件的两个方向导通电流的能力，包括： 至少一个电缆（12），其具有围绕其导体的聚合物基体的绝缘套，以形成互连站的直流电压网络。 该设备还具有一个单元（21），其适于通过改变所述电缆中的电流方向来控制阀门的晶闸管，以改变站点之间的供电方向。

公开(公告)号：US20020075702A1

公开(公告)日：2002-06-20

申请号：US10015946

申请日：2001-12-17

发明人： Seiki Igarashi ,  Taichi Tanigawa

IPC分类号： H02J003/36

CPC分类号： H02M7/5387 ,  H02M1/12

摘要： An electric power conversion apparatus includes a noise reduction device for reducing the common mode noise and the normal mode noise caused by on/off of the switching devices of an electric power conversion apparatus for driving an AC motor. Since the noise-compensation-current supply circuit of the noise reduction device uses devices with a lower breakdown voltage, the operating speed of the noise-compensation-current supply circuit is higher than the operating speed of the conventional noise-compensation-current supply circuit which uses devices with a higher breakdown voltage equivalent to the DC voltage of the electric power conversion apparatus.

摘要翻译： 电力转换装置包括用于降低由用于驱动AC电动机的电力转换装置的开关装置的通/断引起的共模噪声和正常模式噪声的降噪装置。 由于降噪装置的噪声补偿电流供给电路使用具有较低击穿电压的器件，因此噪声补偿电流供给电路的工作速度高于常规噪声补偿电流供给电路的工作速度 其使用具有与电力转换装置的直流电压相当的更高的击穿电压的装置。