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公开(公告)号：US09853574B2
公开(公告)日：2017-12-26
申请号：US15030012
申请日：2014-10-14
Applicant: General Electric Technology GmbH
Inventor： Colin Donald Murray Oates
CPC classification number: H02M7/797 , H02M1/126 , H02M2001/0003 , H02M2001/0025 , H02M2007/4835
Abstract: A voltage source converter including a DC terminal for connection to a DC electrical network, and a converter limb operatively connected to the DC terminal. The converter limb including at least one limb portion operatively connected to an AC terminal. The limb portion including a valve, the valve including at least one module, the module including at least one switching element and at least one energy storage device, the switching element and each energy storage device in the module combining to selectively provide a voltage source. A controller including a valve voltage demand sub-controller. The controller being configured to provide AC and DC output voltage demands to the valve voltage demand sub-controller. And, a switching control unit configured to control switching of the switching element in the module so as to generate a voltage across the valve.
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公开(公告)号：US20160141876A1
公开(公告)日：2016-05-19
申请号：US14896907
申请日：2014-06-06
Applicant: ALSTOM TECHNOLOGY LTD , General Electric Technology GmbH
Inventor： Colin Donald Murray Oates , David Reginald Trainer , Ralph Feldman , Michael Marc Claude Merlin , Timothy Charles Green
IPC: H02J3/18
CPC classification number: H02J3/18 , H02J3/36 , H02M7/483 , H02M7/49 , H02M2001/0003 , H02M2007/4835
Abstract: An alternate arm converter includes at least one converter limb that defines first and second limb portions. Each limb portion includes at least one director switch connected in series with a chain-link converter between one of two DC terminals and an AC terminal of the converter. The chain-link converters are operable to generate a voltage waveform at the AC terminal, and the director switches are operable to switch the respective chain-link converters in and out of circuit between the respective DC terminal and the AC terminal. The converter also includes a controller configured to selectively control the switching of each director switch to form a current circulation path including each limb portion and the DC network. The controller, during formation of the current circulation path, forces an alternating current to flow through the current circulation path to transfer energy between the chain-link converters of the limb portions.
Abstract translation: 替代臂转换器包括限定第一和第二肢体部分的至少一个转换器肢体。 每个肢体部分包括至少一个导向开关，其与两个DC端子之一和转换器的AC端子之间的链节转换器串联连接。 链式转换器可操作以在AC端子处产生电压波形，并且导向开关可操作以在相应的DC端子和AC端子之间切换各个链节转换器进出电路。 该转换器还包括控制器，其被配置为选择性地控制每个导向开关的切换以形成包括每个肢体部分和DC网络的电流循环路径。 在形成当前循环路径期间，控制器迫使交流电流流过电流循环路径以在肢体部分的链节转换器之间传递能量。
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公开(公告)号：US20190173393A1
公开(公告)日：2019-06-06
申请号：US16325957
申请日：2017-08-08
Applicant: General Electric Technology GmbH
Inventor： Francisco Javier Chivite Zabalza , David Reginald Trainer , John Lewis Outram , Colin Donald Murray Oates , Colin Chamock Davidson
IPC: H02M7/483 , H02M1/34 , H03K17/0814 , H03K17/10
Abstract: This application describes methods and apparatus for achieving voltage balancing of clamp capacitors of director switch units of a voltage source converter (VSC). An arm or director switch may be formed from a number of director switch units connected in series, each director switch unit having a semiconductor switching element such as an IGBT. Typically a clamp capacitor may be connected across the IGBT. In some arrangements a floating power supply may draw power from the clamp capacitor to provide power for the director switch unit. In the present application the director switch unit is operable in a voltage balancing mode such that the power drawn from the clamp capacitor varies based on the voltage across the clamp capacitor. In this way the power demand for power drawn from the clamp capacitor may have the characteristic of a resistive load.
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公开(公告)号：US20160308466A1
公开(公告)日：2016-10-20
申请号：US15030012
申请日：2014-10-14
Applicant: General Electric Technology GmbH
Inventor： Colin Donald Murray Oates
CPC classification number: H02M7/797 , H02M1/126 , H02M2001/0003 , H02M2001/0025 , H02M2007/4835
Abstract: A voltage source converter including a DC terminal for connection to a DC electrical network, and a converter limb operatively connected to the DC terminal. The converter limb including at least one limb portion operatively connected to an AC terminal. The limb portion including a valve, the valve including at least one module, the module including at least one switching element and at least one energy storage device, the switching element and each energy storage device in the module combining to selectively provide a voltage source. A controller including a valve voltage demand sub-controller. The controller being configured to provide AC and DC output voltage demands to the valve voltage demand sub-controller. And, a switching control unit configured to control switching of the switching element in the module so as to generate a voltage across the valve.
Abstract translation: 一种电压源转换器，包括用于连接到DC电网的DC端子，以及可操作地连接到DC端子的转换器臂。 转换器臂包括可操作地连接到AC端子的至少一个肢体部分。 所述肢体部分包括阀，所述阀包括至少一个模块，所述模块包括至少一个开关元件和至少一个能量存储装置，所述模块中的开关元件和每个能量存储装置组合以选择性地提供电压源。 控制器包括阀门电压需求子控制器。 控制器被配置为向阀门电压需求子控制器提供AC和DC输出电压要求。 并且，开关控制单元被配置为控制模块中的开关元件的开关，以便产生跨越该阀的电压。
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Patent Agency Ranking
公开(公告)号：US10263425B2
公开(公告)日：2019-04-16
申请号：US15559715
申请日：2016-03-17
Applicant: General Electric Technology GmbH
Abstract: A power transmission network including a single-phase or multi-phase AC electrical system, a converter including an AC terminal, a point of common coupling, a phase reactance connecting the common coupling to each AC terminal, and a transmission medium to interconnect the common coupling and the electrical system. The network includes a controller to: process the voltage and current at the common coupling to compute a state vector; derive a converter demand by combining the state vector with control parameters, including the capacitance of the power transmission medium presented at the common coupling and the impedance of the phase reactance; and operate the converter according to demand controlling the voltage at each terminal and/or the common coupling to inhibit any perturbation in the converter voltage from a target converter voltage or range resulting from the interaction between the capacitance of the power transmission medium and the impedance of the phase reactance.
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公开(公告)号：US20160308453A1
公开(公告)日：2016-10-20
申请号：US15100620
申请日：2014-12-04
Applicant: General Electric Technology GmbH
Inventor： Colin Donald Murray Oates
CPC classification number: H02M5/44 , G05B7/02 , H02M1/08 , H02M2007/4835
Abstract: A control apparatus configured to control a chain link voltage source converter, the control apparatus comprising; two converter controllers, each converter controller configured to receive a measure of the output voltage and/or current from the converter and determine a control signal therefrom for controlling the voltage source converter, each converter controller including at least one integrator element configured to perform an integration operation and output an integrator term in said determination of the control signal, a selector configured to select which one of the converter controllers provides its control signal to the converter; wherein each integrator element is configured to have two modes, a first mode in which the integrator element determines the integrator term and a second mode in which the integrator term is provided by a corresponding integrator element in the other converter controller.
Abstract translation: 一种控制装置，被配置为控制链式电压源转换器，所述控制装置包括： 两个转换器控制器，每个转换器控制器被配置为接收来自转换器的输出电压和/或电流的量度，并确定其中的控制信号用于控制电压源转换器，每个转换器控制器包括被配置为执行积分的至少一个积分器元件 在所述控制信号的确定中，操作并输出积分项;选择器，被配置为选择哪个转换器控制器向转换器提供其控制信号; 其中每个积分器元件被配置为具有两个模式，其中积分器元件确定积分器项的第一模式和其他积分器项由另一个转换器控制器中的相应积分器元件提供的第二模式。
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公开(公告)号：US20160336750A1
公开(公告)日：2016-11-17
申请号：US15111169
申请日：2015-01-13
Applicant: GENERAL ELECTRIC TECHNOLOGY GMBH
Inventor： Colin Donald Murray Oates
Abstract: A controller (40), for controlling a multiphase voltage source converter, comprises a vector control module (42) that is configured to generate multiphase voltage demand waveforms (va, vb, vc) that the voltage source converter subsequently is required to provide. The vector control module (42) generates the multiphase voltage demand waveforms (va, vb, vc) from respective converter voltage output phase waveforms (Va, Vb, and Vc) that are measured at corresponding AC outputs of the voltage source converter. The vector control module (42) includes a transformation element (44) which is configured to transform the respective converter voltage output phase waveforms (Va, Vb, and Vc) into symmetrical sequence rotating reference frame terms. The vector control module (42) also includes a distortion element (46) that is configured to introduce harmonic distortion into the generated multiphase demand waveforms (va, vb, vc). The distortion element (46) includes a time-varying conversion element (48) that is configured to convert the symmetrical sequence terms directly into respective time-varying waveforms (58, 60, 62, 68, 70, 72) utilising only sine and cosine instantaneous reference terms, and a manipulation element (74) which is configured to carry out non-trigonometric manipulation of the time-varying waveforms (58, 60, 62, 68, 70, 72) to introduce the said harmonic distortion into the generated multiphase voltage demand waveforms (va, vb, vc).
Abstract translation: 用于控制多相电压源转换器的控制器（40）包括矢量控制模块（42），其被配置为产生电压源转换器随后需要提供的多相电压需求波形（va，vb，vc）。 矢量控制模块（42）根据在电压源转换器的相应AC输出端测量的各个转换器电压输出相位波形（Va，Vb和Vc）产生多相电压需求波形（va，vb，vc）。 矢量控制模块（42）包括变换元件（44），其被配置为将各个转换器电压输出相位波形（Va，Vb和Vc）变换为对称的旋转参考帧项。 矢量控制模块（42）还包括失真元件（46），其被配置为将谐波失真引入所生成的多相需求波形（va，vb，vc）中。 失真元件（46）包括时变转换元件（48），其被配置为仅利用正弦和余弦将对称序列项直接转换成各个时变波形（58,60,62,68,70,72） 瞬时参考项和操作元件（74），其被配置为对时变波形（58,60,62,68,70,72）进行非三角操作，以将所述谐波失真引入生成的多相 电压需求波形（va，vb，vc）。
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公开(公告)号：US09866138B2
公开(公告)日：2018-01-09
申请号：US15128262
申请日：2015-03-23
Applicant: General Electric Technology GmbH
Inventor： Colin Donald Murray Oates , Kevin Dyke , David Reginald Trainer
IPC: H02M1/14 , H02M1/15 , H02M7/219 , H02M7/493 , H02M7/483 , H02M5/458 , H02M1/12 , H02M7/487 , H02M1/00 , H02M7/217
CPC classification number: H02M5/458 , H02M1/12 , H02M1/14 , H02M1/15 , H02M7/217 , H02M7/219 , H02M7/483 , H02M7/487 , H02M7/493 , H02M7/5388 , H02M2001/0058 , H02M2007/4835 , Y02B70/1491
Abstract: A voltage source converter of the controlled transition bridge type, having three phase limbs, each phase limb having a high &de director switch (Sw1 Sw3, Sw5) and a low side director switch (Sw4, Sw6, Sw2) connecting a respective DC terminal (DC+, DC−) to an AC node for that phase limb. Chain-link circuits for each phase limb comprise a plurality of series connect cells, each cell having an energy storage element that can be selectively connected in series or bypassed. The chain-link circuits are operated in a voltage mode to provide a defined voltage transition at the AC node during a transition between one director switch being turned off and the other director switch being turned on. Chain-link circuits are connected to a common node such that, in use, a current can flow from one phase limb to another via the respective chain-link circuits.
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公开(公告)号：US09831793B2
公开(公告)日：2017-11-28
申请号：US15100620
申请日：2014-12-04
Applicant: General Electric Technology GmbH
Inventor： Colin Donald Murray Oates
CPC classification number: H02M5/44 , G05B7/02 , H02M1/08 , H02M2007/4835
Abstract: A control apparatus configured to control a chain link voltage source converter, the control apparatus comprising; two converter controllers, each converter controller configured to receive a measure of the output voltage and/or current from the converter and determine a control signal therefrom for controlling the voltage source converter, each converter controller including at least one integrator element configured to perform an integration operation and output an integrator term in said determination of the control signal, a selector configured to select which one of the converter controllers provides its control signal to the converter; wherein each integrator element is configured to have two modes, a first mode in which the integrator element determines the integrator term and a second mode in which the integrator term is provided by a corresponding integrator element in the other converter controller.
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