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：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。

公开(公告)号：US20140293668A1

公开(公告)日：2014-10-02

申请号：US14359088

申请日：2011-11-17

Applicant: David Reginald Trainer

Inventor： David Reginald Trainer

IPC: H02M7/68

CPC classification number: H02M7/68 ,  H02J3/36 ,  H02M3/335 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5388 ,  H02M7/797 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A power electronic converter, for connecting AC and DC networks and transferring power therebetween, comprises: first and second DC terminals for connection in use to a DC network; at least one primary converter limb extending between the first and second DC terminals and having first and second primary limb portions separated by a primary AC terminal for connection in use to a respective phase of a multi-phase AC network, at least one of the first and second primary limb portions including at least one primary active switching module to selectively allow current to flow through the corresponding primary converter limb in a first direction from the corresponding primary AC terminal to the DC terminals and in a second direction from the DC terminals to the corresponding primary AC terminal; and at least one secondary converter limb extending between the first and second DC terminals and having first and second secondary limb portions separated by a secondary AC terminal for connection in use to a further respective phase of the said multi-phase AC network, each of the first and second secondary limb portions including at least one passive current check element to limit current flow through the corresponding secondary converter limb to a single direction from the corresponding secondary AC terminal to the DC terminals.

Abstract translation: 一种用于连接AC和DC网络并在其间传递电力的电力电子转换器包括：用于连接到DC网络的第一和第二DC终端; 至少一个主转换器分支，其在所述第一和第二DC终端之间延伸并且具有由主AC终端隔开的第一和第二主分支部分，用于连接到多相AC网络的相应相位，所述第一和第二主分支部分中的至少一个 以及第二主要肢体部分，其包括至少一个主要有源切换模块，用于选择性地允许电流沿着第一方向从相应的主AC端子到DC端子以及从DC端子到第二方向的第二方向流过对应的主转换器臂 相应的主交流电源; 以及至少一个次级转换器分支，其在所述第一和第二DC终端之间延伸并且具有被辅助AC端子分隔开的第一和第二辅助分支部分，用于连接到所述多相AC网络的另外的相位， 第一和第二副肢部分包括至少一个无源电流检查元件，以将来自相应次级转换器支路的电流限制到从相应的次级AC端子到DC端子的单个方向。

公开(公告)号：US20140293656A1

公开(公告)日：2014-10-02

申请号：US14236627

申请日：2011-08-01

Applicant: David Reginald Trainer ,  Nnamdi Okaeme

Inventor： David Reginald Trainer ,  Nnamdi Okaeme

IPC: H02M3/28

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

Abstract: A DC to DC converter assembly, for connecting first and second high voltage DC power transmission networks, comprising first and second modular multilevel converters, each converter including a first converter limb having first and second limb portions, each limb portion including a least one module switchable to selectively provide a voltage source and thereby vary the magnitude ratio of a DC voltage (V1, V2) across the first and second terminals of a respective converter and an AC voltage (VAC) at the third terminal of the corresponding converter, the DC to DC converter assembly further including a first link electrically connecting the third terminal of one converter, with the third terminal of the other converter, and at least one converter further including a controller configured to switch the first and second limb portions in the first converter limb of the said converter into simultaneous conduction to divert a portion (IDiV1) of current flowing within the said converter away from the first link.

Abstract translation: 一种DC-DC转换器组件，用于连接第一和第二高压DC电力传输网络，包括第一和第二模块化多电平转换器，每个转换器包括具有第一和第二分支部分的第一转换器分支，每个分支部分包括至少一个可切换模块 选择性地提供电压源，从而改变跨过相应转换器的第一和第二端子的直流电压（V1，V2）和相应转换器的第三端口处的交流电压（VAC）的幅度比，直流到 DC转换器组件还包括将一个转换器的第三端子与另一个转换器的第三端子电连接的第一连接器以及至少一个转换器，该至少一个转换器还包括控制器，该控制器被配置为将第一转换器臂中的第一和第二臂部分切换到 所述转换器同时导通以将在所述转换器内流动的电流的一部分（IDiV1）转移掉f 第一个链接。

公开(公告)号：US07830105B2

公开(公告)日：2010-11-09

申请号：US12176663

申请日：2008-07-21

Applicant: David Reginald Trainer ,  John James Anthony Cullen ,  Stephen Andrew Long

Inventor： David Reginald Trainer ,  John James Anthony Cullen ,  Stephen Andrew Long

IPC: H02P6/14 ,  G05B19/40

CPC classification number: H02P25/08 ,  F01D15/10 ,  F02C7/275 ,  H02P6/185 ,  H02P2203/01

Abstract: Embedding electrical machines in gas turbine engines has particular advantages by avoiding the need to provide mechanical connections. However, electrical machines such as switched reluctance electrical machines require relatively large electrical capacitors to accommodate and filter voltage variations in the phases of the electrical machine. Generally, the electrical machine will have a motoring period or generating period with a spacer period between. By injecting electrical current as electrical power in the spacer period, there is limited effect upon net torque within the electrical machine or electrical power generation. However, such stored electrical power in an inductive winding element of the electrical machine augments power pulses provided by a power source incorporating an electrical capacitor. In such circumstances, a smaller sized electrical capacitor can be used.

Abstract translation: 将电机嵌入燃气轮机中具有避免提供机械连接的需要的特别优点。 然而，诸如开关磁阻电机的电机需要相对较大的电容器来适应和滤除电机的相位中的电压变化。 一般来说，电机将具有驾驶期或发电期间间隔期间。 通过在隔离周期期间注入电流作为电力，对电机或发电中的电力转矩有有限的影响。 然而，电机的电感式绕组元件中的这种存储的电力增加了由并入有电容器的电源提供的功率脉冲。 在这种情况下，可以使用较小尺寸的电容器。

公开(公告)号：US09362848B2

公开(公告)日：2016-06-07

申请号：US14359088

申请日：2011-11-17

Applicant: David Reginald Trainer

Inventor： David Reginald Trainer

IPC: H02M7/49 ,  H02M7/483 ,  H02M7/68 ,  H02M7/5388 ,  H02M7/797 ,  H02J3/36

CPC classification number: H02M7/68 ,  H02J3/36 ,  H02M3/335 ,  H02M7/483 ,  H02M7/49 ,  H02M7/5388 ,  H02M7/797 ,  H02M2007/4835 ,  Y02E60/60

Abstract: A power electronic converter, for connecting AC and DC networks and transferring power therebetween, comprises: first and second DC terminals for connection in use to a DC network; at least one primary converter limb extending between the first and second DC terminals and having first and second primary limb portions separated by a primary AC terminal for connection in use to a respective phase of a multi-phase AC network, at least one of the first and second primary limb portions including at least one primary active switching module to selectively allow current to flow through the corresponding primary converter limb in a first direction from the corresponding primary AC terminal to the DC terminals and in a second direction from the DC terminals to the corresponding primary AC terminal; and at least one secondary converter limb extending between the first and second DC terminals and having first and second secondary limb portions separated by a secondary AC terminal for connection in use to a further respective phase of the said multi-phase AC network, each of the first and second secondary limb portions including at least one passive current check element to limit current flow through the corresponding secondary converter limb to a single direction from the corresponding secondary AC terminal to the DC terminals.

Abstract translation: 一种用于连接AC和DC网络并在其间传递电力的电力电子转换器包括：用于连接到DC网络的第一和第二DC终端; 至少一个主转换器分支，其在所述第一和第二DC终端之间延伸并且具有由主AC终端隔开的第一和第二主分支部分，用于连接到多相AC网络的相应相位，所述第一和第二主分支部分中的至少一个 以及第二主要肢体部分，其包括至少一个主要有源切换模块，用于选择性地允许电流沿着第一方向从相应的主AC端子到DC端子以及从DC端子到第二方向的第二方向流过对应的主转换器臂 相应的主交流电源; 以及至少一个次级转换器分支，其在所述第一和第二DC终端之间延伸并且具有被辅助AC端子分隔开的第一和第二辅助分支部分，用于连接到所述多相AC网络的另外的相位， 第一和第二副肢部分包括至少一个无源电流检查元件，以将来自相应次级转换器支路的电流限制到从相应的次级AC端子到DC端子的单个方向。