公开(公告)号：US09954358B2

公开(公告)日：2018-04-24

申请号：US14378319

申请日：2012-03-01

Applicant: Nnamdi Okaeme ,  David Reginald Trainer ,  Colin Charnock Davidson

Inventor： Nnamdi Okaeme ,  David Reginald Trainer ,  Colin Charnock Davidson

IPC: H02H3/16 ,  H02J1/02 ,  H02H7/26 ,  H02J3/36 ,  H02J4/00 ,  H02H9/04 ,  H02M7/483 ,  H02M1/32

CPC classification number: H02J1/02 ,  H02H3/16 ,  H02H7/268 ,  H02H9/041 ,  H02J3/36 ,  H02J4/00 ,  H02J2003/365 ,  H02M1/32 ,  H02M2007/4835 ,  Y02E60/60 ,  Y10T307/445

Abstract: The control circuit includes first and second primary terminals for connection to a DC network, a secondary terminal connected in series between the first and second primary terminals and at least one auxiliary energy conversion element and an auxiliary terminal. The first and second primary terminals have a plurality of modules and a plurality of primary energy conversion elements connected in series therebetween to define a current transmission path, each module including at least one energy storage device, each energy storage device being selectively removable from the current transmission path. The plurality of modules include a first module and a second module the first module being connected in series with at least one primary energy conversion element between the first primary terminal and the secondary terminal to define a first current transmission path portion, and the second module being connected in series with at least one other primary energy conversion element between the second primary terminal and the secondary terminal to define a second current transmission path portion. The auxiliary energy conversion element is connected in series between the secondary and auxiliary terminals, the auxiliary terminal being for connection to ground.

公开(公告)号：US20140313797A1

公开(公告)日：2014-10-23

申请号：US14357908

申请日：2011-11-15

Applicant: Colin Charnock Davidson ,  David Reginald Trainer

Inventor： Colin Charnock Davidson ,  David Reginald Trainer

IPC: H02M7/72

CPC classification number: H02M7/72 ,  H02M7/49 ,  H02M2001/325 ,  H02M2007/4835

Abstract: In the field of voltage source converters which provide high voltage direct current (HVDC) power transmission and reactive power compensation there is a need for an improved power electronic module which exhibits high efficiency, provides a safe failure mode, and is tolerant of faults.A power electronic module (30; 70), for use in a chain-link converter of a voltage source converter providing high voltage direct current power transmission and reactive power compensation, comprises a first set (32) of series-connected switching elements connected in parallel with an energy storage device (34). The first set (32) of series-connected switching elements includes a first latching switching element (38) and a first non-latching switching element (40).

Abstract translation: 在提供高压直流（HVDC）电力传输和无功补偿的电压源转换器领域中，需要一种改进的功率电子模块，其具有高效率，提供安全故障模式并且容忍故障。 一种用于提供高压直流电力传输和无功功率补偿的电压源转换器的链式转换器的电力电子模块（30; 70）包括连接在一起的串联开关元件的第一组（32） 与能量存储装置（34）平行。 第一组（32）的串联开关元件包括第一闭锁开关元件（38）和第一非锁定开关元件（40）。

公开(公告)号：US08837176B2

公开(公告)日：2014-09-16

申请号：US13388624

申请日：2009-08-03

Applicant: David Reginald Trainer ,  Colin Charnock Davidson

Inventor： David Reginald Trainer ,  Colin Charnock Davidson

IPC: H02M1/12 ,  H02M7/217

CPC classification number: H02M5/293 ,  H02M1/4233 ,  H02M5/458 ,  H02M2001/007 ,  H02M2007/4835 ,  Y02B70/126

Abstract: A voltage source converter for a HVDC power transmission system is disclosed. According to one aspect, the voltage source converter includes at least one phase element having series connected diodes configured to interconnect, in use, a DC network and an AC network. The voltage source converter further includes at least one auxiliary converter configured to act as a waveform synthesizer to modify the DC voltage presented to the DC side of one or more phase elements.

Abstract translation: 公开了一种用于HVDC输电系统的电压源转换器。 根据一个方面，电压源转换器包括至少一个具有串联连接的二极管的相位元件，该二极管被配置为在使用中互连DC网络和AC网络。 电压源转换器还包括至少一个辅助转换器，其配置为充当波形合成器，以修改呈现给一个或多个相位元件的DC侧的DC电压。

公开(公告)号：US20150009594A1

公开(公告)日：2015-01-08

申请号：US14378319

申请日：2012-03-01

Applicant: Nnamdi Okaeme ,  David Reginald Trainer ,  Colin Charnock Davidson

Inventor： Nnamdi Okaeme ,  David Reginald Trainer ,  Colin Charnock Davidson

IPC: H02H3/16

CPC classification number: H02J1/02 ,  H02H3/16 ,  H02H7/268 ,  H02H9/041 ,  H02J3/36 ,  H02J4/00 ,  H02J2003/365 ,  H02M1/32 ,  H02M2007/4835 ,  Y02E60/60 ,  Y10T307/445

Abstract: The control circuit includes first and second primary terminals for connection to a DC network, a secondary terminal connected in series between the first and second primary terminals and at least one auxiliary energy conversion element and an auxiliary terminal. The first and second primary terminals have a plurality of modules and a plurality of primary energy conversion elements connected in series therebetween to define a current transmission path, each module including at least one energy storage device, each energy storage device being selectively removable from the current transmission path. The plurality of modules include a first module and a second module the first module being connected in series with at least one primary energy conversion element between the first primary terminal and the secondary terminal to define a first current transmission path portion, and the second module being connected in series with at least one other primary energy conversion element between the second primary terminal and the secondary terminal to define a second current transmission path portion. The auxiliary energy conversion element is connected in series between the secondary and auxiliary terminals, the auxiliary terminal being for connection to ground.

Abstract translation: 控制电路包括用于连接到DC网络的第一和第二初级端子，串联连接在第一和第二主要端子与至少一个辅助能量转换元件和辅助端子之间的次级端子。 第一和第二主端子具有多个模块和多个一次能量转换元件，其间串联连接以限定当前传输路径，每个模块包括至少一个能量存储装置，每个能量存储装置可从电流选择性地移除 传输路径。 多个模块包括第一模块和第二模块，第一模块与第一主要端子和次级端子之间的至少一个主要能量转换元件串联连接以限定第一电流传输路径部分，第二模块是 与第二主要端子和次级端子之间的至少一个其它主要能量转换元件串联连接以限定第二电流传输路径部分。 辅助能量转换元件串联连接在辅助端子和辅助端子之间，辅助端子用于连接到地面。

公开(公告)号：US09209693B2

公开(公告)日：2015-12-08

申请号：US14356882

申请日：2011-11-07

Applicant: Colin Charnock Davidson ,  David Reginald Trainer ,  Nnamdi Okaeme

Inventor： Colin Charnock Davidson ,  David Reginald Trainer ,  Nnamdi Okaeme

IPC: H02M3/158 ,  H02M1/08 ,  H02M1/32 ,  H02H7/26 ,  H02J3/36 ,  H02M7/483

CPC classification number: H02M3/158 ,  H02H7/268 ,  H02J3/36 ,  H02M1/08 ,  H02M1/32 ,  H02M2007/4835 ,  Y02E60/60

Abstract: There is a control circuit comprising first and second DC terminals for connection to a DC network, the first and second DC terminals having a plurality of modules and at least one energy conversion element connected in series therebetween to define a current transmission path, the plurality of modules defining a chain-link converter, each module including at least one energy storage device, the or each energy storage device being selectively removable from the current transmission path to cause a current waveform to flow from the DC network through the current transmission path and the or each energy conversion element and thereby remove energy from the DC network, the or each energy storage device being selectively removable from the current transmission path to modulate the current waveform to maintain a zero net change in energy level of the chain-link converter.

Abstract translation: 存在包括用于连接到DC网络的第一和第二DC端子的控制电路，所述第一和第二DC端子具有多个模块和至少一个在其间串联连接的能量转换元件，以限定当前传输路径， 限定链式转换器的模块，每个模块包括至少一个能量存储装置，所述或每个能量存储装置可选地从当前传输路径移除，以使电流波形从DC网络流过当前传输路径，并且 或每个能量转换元件，从而从DC网络去除能量，所述或每个能量存储装置可选择性地从当前传输路径移除，以调制电流波形，以维持链式转换器的能量级别的零净变化。

公开(公告)号：US08854843B2

公开(公告)日：2014-10-07

申请号：US13818654

申请日：2010-08-24

Applicant: David Reginald Trainer ,  Nnamdi Okaeme

Inventor： David Reginald Trainer ,  Nnamdi Okaeme

IPC: H02J3/36 ,  H02M1/12 ,  H02M7/797

CPC classification number: H02J3/36 ,  H02J3/1857 ,  H02M1/12 ,  H02M1/32 ,  H02M7/49 ,  H02M7/797 ,  H02M2007/4835 ,  Y02E40/26 ,  Y02E60/60

Abstract: A power electronic converter (30)is for use in high voltage direct current power transmission and reactive power compensation, the power electronic converter (30) including three phase elements (32) defining a star connection (36) and a converter unit (34) including first and second DC terminals (50,52) for connection in use to a DC network (56) and three AC terminals (54), the converter unit (34) including a plurality of switching elements (70,74) controllable in use to facilitate power conversion between the AC and DC networks (44,56), the power electronic converter (30) further including a third DC terminal (78) connected between the first and second DC terminals (50,52), the third DC terminal (78) being connected to a common junction (40) of the star connection (36) to define an auxiliary connection (82), the auxiliary connection (82) including at least one dump resistor (84) connected between the common junction (40) and the third DC terminal (78), wherein the switching elements (70,74) of the converter unit (34) are controllable in use to modify a phase voltage at each AC terminal (54) to include a triplen harmonic voltage component so as to dissipate real power in the or each dump resistor (84) at a triplen harmonic frequency.

Abstract translation: 电力电子转换器（30）用于高压直流电力传输和无功补偿，所述电力电子转换器（30）包括限定星形连接（36）和转换器单元（34）的三相元件（32） 包括用于连接到DC网络（56）和三个AC端子（54）的第一和第二DC终端（50,52），所述转换器单元（34）包括可在使用中控制的多个开关元件（70,74） 为了促进AC和DC网络之间的电力转换（44,56），电力电子转换器（30）还包括连接在第一和第二DC端子（50,52）之间的第三DC端子（78），第三DC端子 （78）连接到星形连接（36）的公共接头（40）以限定辅助连接（82），辅助连接（82）包括连接在公共接头（40）之间的至少一个卸载电阻器（84） ）和第三DC端子（78），其中开关元件 转换器单元（34）中的70,74）在使用中是可控的，以修改每个AC端子（54）处的相电压以包括三次谐波电压分量，以便在该或每个转储电阻器（84）中消散有功功率 三倍谐波频率。

公开(公告)号：US20140254205A1

公开(公告)日：2014-09-11

申请号：US14236628

申请日：2011-08-24

Applicant: David Reginald Trainer ,  Nnamdi Okaeme

Inventor： David Reginald Trainer ,  Nnamdi Okaeme

IPC: H02M3/335

CPC classification number: H02M3/28 ,  H02M3/335 ,  H02M3/33576 ,  H02M7/483 ,  H02M2007/4835

Abstract: In the field of high voltage DC power transmission there is a need for a small, lightweight, inexpensive, and reliable means of connecting first and second high voltage DC power transmission networks.A DC to DC converter assembly, for connecting first and second high voltage DC power transmission networks, comprises an inverter which has first and second terminals which are connectable in use to a first high voltage DC power transmission network. The inverter is defined by a modular multilevel converter which includes a first inverter limb that extends between the first and second terminals and has first and second inverter limb portions that are separated by a third terminal. Each inverter limb portion includes at least one rationalised module which has first and second sets of series-connected current flow control elements that are connected in parallel with at least one energy storage device. Each set of current flow control elements includes an active switching element to selectively direct current through the energy storage device and a passive current check element to limit current flow through the rationalised module to a single direction. The current flow control elements and the or each energy storage device combine to selectively provide a voltage source to synthesise an AC voltage (VAC) at the third terminal. The DC to DC converter assembly also includes a rectifier that is electrically connected to the third terminal of the inverter by a first link and is connectable in use to a second high voltage DC power transmission network. The rectifier is configured to convert the AC voltage (VAC) conveyed by the first link into a second DC voltage (V2) for supply to the second high voltage DC power transmission network.

Abstract translation: 在高压直流输电领域，需要一种连接第一和第二高压直流输电网络的小型，轻量化，廉价和可靠的手段。 用于连接第一和第二高压直流输电网络的直流 - 直流转换器组件包括具有第一和第二端子的逆变器，所述第一和第二端子在使用中可连接到第一高压直流输电网络。 逆变器由模块化多电平转换器限定，其包括在第一和第二端子之间延伸的第一反相器臂，并且具有由第三端子分开的第一和第二反相器四肢部分。 每个逆变器分支部分包括至少一个合理化模块，其具有与至少一个能量存储装置并联连接的第一组和第二组串联电流流量控制元件。 每组电流流量控制元件包括有源开关元件，用于选择性地引导电流通过能量存储装置和无源电流检查元件，以将流过合理化模块的电流限制到单个方向。 电流流量控制元件和/或每个能量存储装置组合以选择性地提供电压源以在第三端子处合成AC电压（VAC）。 DC至DC转换器组件还包括通过第一链路与逆变器的第三端子电连接的整流器，并且可连接到第二高压DC输电网络。 整流器被配置为将由第一链路传送的AC电压（VAC）转换成用于供应到第二高压直流输电网络的第二直流电压（V2）。

公开(公告)号：US08193750B2

公开(公告)日：2012-06-05

申请号：US12379937

申请日：2009-03-04

Applicant: David Reginald Trainer ,  Harsh Agarwal ,  Stephen Mark Husband ,  Gareth Edward Moore ,  David James Powell ,  Stephen Andrew Long

Inventor： David Reginald Trainer ,  Harsh Agarwal ,  Stephen Mark Husband ,  Gareth Edward Moore ,  David James Powell ,  Stephen Andrew Long

IPC: H02P6/14

CPC classification number: H02P25/08 ,  H02P6/14 ,  H02P6/15 ,  H02P6/28 ,  H02P25/089

Abstract: Electrical machine arrangements have advantages with regard to providing local electrical power and starting. Embedding such electrical machine arrangements in machinery such as gas turbine engines is advantageous in removing mechanical linkages and reducing aerodynamic drag. However, the components utilized must be able to withstand harsh environmental conditions and therefore the DC link capacitor used for smoothing of voltage fluctuations are limited to relatively low capacitance densities. Low density DC link capacitors require large sizes which render electrical machines less acceptable for embedded usage. By providing offset of electrical current in inductance elements such as stator windings and stator coils of electrical machines in dead periods of the cycle a reduction in DC link capacitor requirements is achieved reducing the size, weight and complexity of installing electrical machines in gas turbine engines.

Abstract translation: 电机装置在提供局部电力和启动方面具有优势。 在诸如燃气涡轮发动机的机械中嵌入这样的电机装置有利于去除机械连杆并减小空气动力学阻力。 然而，所使用的部件必须能够承受恶劣的环境条件，因此用于平滑电压波动的DC链路电容器被限制在相对低的电容密度。 低密度直流链路电容器需要较大的尺寸，这使得电机不适合嵌入式使用。 通过在循环的死区中提供诸如电机的定子绕组和定子线圈的电感元件中的电流偏移，可以减少DC链路电容器的要求，从而降低了在燃气涡轮发动机中安装电机的尺寸，重量和复杂性。

公开(公告)号：US09479061B2

公开(公告)日：2016-10-25

申请号：US14236628

申请日：2011-08-24

Applicant: David Reginald Trainer ,  Nnamdi Okaeme

Inventor： David Reginald Trainer ,  Nnamdi Okaeme

IPC: H02M7/483 ,  H02M3/335 ,  H02M3/28

CPC classification number: H02M3/28 ,  H02M3/335 ,  H02M3/33576 ,  H02M7/483 ,  H02M2007/4835

Abstract: A DC-to-DC converter assembly includes an inverter having first and second terminals connectable to a power transmission network. The inverter has a modular multilevel converter including a first inverter limb extending between the first and second terminals with first and second inverter limb portions separated by a third terminal. Each inverter limb portion includes at least one rationalized module having first and second sets of series-connected current flow control elements connected in parallel with an energy storage device. The current flow control elements include an active switching element directing current through the energy storage device and a passive current check element limiting current flow to one direction. The current flow control elements and energy storage device provide a voltage source to synthesize an AC voltage at the third terminal. A rectifier is electrically connected to the third terminal and connectable to a second power transmission network.

Abstract translation: DC-DC转换器组件包括具有可连接到输电网络的第一和第二端子的逆变器。 逆变器具有模块化多电平转换器，其包括在第一和第二端子之间延伸的第一反相器臂，第一和第二反相器分支部分由第三端子分开。 每个逆变器分支部分包括至少一个具有与能量存储装置并联连接的第一组和第二组串联电流流量控制元件的合理化模块。 电流控制元件包括引导电流通过能量存储装置的有源开关元件和限制向一个方向的电流的无源电流检查元件。 电流控制元件和能量存储装置提供电压源以在第三端合成交流电压。 整流器电连接到第三端子并且可连接到第二电力传输网络。

公开(公告)号：US08867244B2

公开(公告)日：2014-10-21

申请号：US13813414

申请日：2010-07-30

Applicant: David Reginald Trainer ,  William Crookes ,  Timothy Charles Green ,  Michael Marc Claude Merlin

Inventor： David Reginald Trainer ,  William Crookes ,  Timothy Charles Green ,  Michael Marc Claude Merlin

IPC: H02J1/10 ,  H02J3/36 ,  H02J5/00 ,  H02M1/32 ,  H02M7/797 ,  H02J3/18 ,  H02M7/483

CPC classification number: H02J7/02 ,  H02J3/1857 ,  H02J3/36 ,  H02M1/32 ,  H02M7/797 ,  H02M2007/4835 ,  Y02E40/16 ,  Y02E40/26 ,  Y02E60/60

Abstract: A power electronic converter for use in high voltage direct current power transmission and reactive power compensation comprises three converter limbs, each converter limb including first and second DC terminals for connection in use to a DC network and an AC terminal for connection in use to a respective phase of a three-phase AC network, each converter limb defining first and second limb portions being connected in series between the respective AC terminal and a respective one of the first and second DC terminals, each limb portion including at least one switching element being controllable in use to facilitate power conversion between the AC and DC networks, the power electronic converter further including a plurality of auxiliary units, each auxiliary unit being operably associated with the respective phase of the AC network, each auxiliary unit including at least one module including a voltage source, the limb portions being controllable in use to define at least one three-phase static synchronous compensator including at least one of the plurality of auxiliary units in each branch of a star configuration, each of the first and/or second DC terminals defining the neutral point of the respective star configuration.

Abstract translation: 用于高压直流电力传输和无功补偿的电力电子转换器包括三个转换器分支，每个转换器分支包括用于连接到DC网络的第一和第二DC终端和用于连接到相应的AC终端的AC终端 三相AC网络的相位，每个转换器限定第一和第二分支部分串联连接在相应AC端子与第一和第二DC端子中的相应一个之间，每个分支部分包括至少一个开关元件，其可控制 在用于促进​​AC和DC网络之间的电力转换的情况下，电力电子转换器还包括多个辅助单元，每个辅助单元可操作地与AC网络的相位相关联，每个辅助单元包括至少一个模块， 电压源，肢体部分在使用中是可控的，以限定至少一个三相s 同步补偿器包括星形结构的每个分支中的多个辅助单元中的至少一个，第一和/或第二直流端子中的每一个限定相应的星形结构的中性点。