公开(公告)号：WO2010063140A1

公开(公告)日：2010-06-10

申请号：PCT/CN2008/001972

申请日：2008-12-05

Applicant: ABB RESEARCH LTD. ,  YANG, Xiaobo ,  ZHANG, Jin

Inventor： YANG, Xiaobo ,  ZHANG, Jin

IPC: H01F21/08

CPC classification number: H01F29/14

Abstract: A controllable reactor and a method of assembling it are disclosed. The controllable reactor (1) comprises a core structure (2) surrounded by a main winding (3), and a control winding(201) for controlling an inductance of the core structure (2), and the core structure (2) comprises a control element (20) with a control core (200) surrounded by the control winding (201). The method includes prefabrication control elements (20) with a control core (200) surrounded by the control winding (201), and stacking a plurality of prefabricated control elements (20) and uncontrolled elements (21) to form the core structure of the reactor (1), so as to simplify design, fabrication, and assembling of a controllable reactor with a transverse DC winding.

Abstract translation: 公开了一种可控电抗器及其组装方法。 可控电抗器（1）包括由主绕组（3）围绕的芯结构（2）和用于控制芯结构（2）的电感的控制绕组（201），并且芯结构（2）包括 控制元件（20），其具有由所述控制绕组（201）包围的控制芯（200）。 该方法包括具有由控制绕组（201）包围的控制芯（200）的预制控制元件（20），并且堆叠多个预制的控制元件（20）和不受控元件（21）以形成反应器的核心结构 （1），以简化具有横向直流绕组的可控电抗器的设计，制造和组装。

公开(公告)号：WO2017181322A1

公开(公告)日：2017-10-26

申请号：PCT/CN2016/079557

申请日：2016-04-18

Applicant: ABB SCHWEIZ AG ,  YANG, Xiaobo ,  YUAN, Chunming ,  YANG, Chao

Inventor： YANG, Xiaobo ,  YUAN, Chunming ,  YANG, Chao

IPC: F03B15/08 ,  H02P9/00

Abstract: A method (100, 300), system (900) and apparatus (1000) for operating a hydraulic turbine. A speed adjustment quantity for the hydraulic turbine and a corresponding change in flow quantity are obtained (110, 310). A rotation speed of the hydraulic turbine is adjusted based on the speed adjustment quantity. A change ratio of the flow quantity with regard to the speed adjustment quantity is determined based on the speed adjustment quantity and the corresponding change in flow quantity (120, 320). An adjustment manner in which the rotation speed is further adjusted is determined based on the determined change ratio of flow quantity (130, 330).It enables the hydraulic turbine to track a maximum efficiency operation point under a given power order and water head in real time at a low cost.

Abstract translation: 一种用于操作水轮机的方法（100,300），系统（900）和设备（1000）。 获得水轮机的速度调节量和相应的流量变化（110,310）。 基于该速度调整量来调整水轮机的转速。 基于速度调节量和相应的流量变化（120,320）确定流量相对于速度调节量的变化率。 基于所确定的流量变化率（130,330）来确定进一步调节转速的调节方式。其使得水轮机能够在给定的功率指令和水头下实时跟踪最大效率运行点 时间成本低。

公开(公告)号：WO2016070378A1

公开(公告)日：2016-05-12

申请号：PCT/CN2014/090455

申请日：2014-11-06

Applicant: ABB TECHNOLOGY LTD ,  XING, Zhongwei ,  RUAN, Xinbo ,  YOU, Hongcheng ,  YANG, Xiaobo ,  YAO, Dawei ,  YUAN, Chunming

Inventor： XING, Zhongwei ,  RUAN, Xinbo ,  YOU, Hongcheng ,  YANG, Xiaobo ,  YAO, Dawei ,  YUAN, Chunming

IPC: H02M3/28

CPC classification number: H02M3/33584 ,  H02M2007/4835

Abstract: A method and controller for controlling capacitor voltage balancing in a modular direct-current to direct-current (DC/DC) converter. The method comprises in each of sub-process of a voltage transitional process of a square wave for an arm: S701: identifying candidate sub-modules in a predetermined status from sub-modules in the arm; S702: obtaining capacitor voltages of the candidate sub-modules; S703: selecting at least one target sub-module from the candidate sub-modules based on the obtained capacitor voltages; and S704: generating a control signal to the at least one target sub-module in the arm so that a voltage across the arm changes gradually in the voltage transitional process. Using the above method, well-balanced capacitor voltages can be provided, which could provide a square waveform with a voltage changing gradually in the voltage transitional process at corresponding arm and at the same time meet requirements on the arm current by a soft switching. Therefore, the switching loss can be reduced even at a higher switching frequency and thus the system efficiency can be improved.

Abstract translation: 用于控制模块化直流到直流（DC / DC）转换器中的电容器电压平衡的方法和控制器。 该方法包括在臂的方波的电压过渡过程的每个子过程中：S701：从臂中的子模块识别处于预定状态的候选子模块; S702：获得候选子模块的电容器电压; S703：基于获得的电容器电压从候选子模块中选择至少一个目标子模块; 和S704：向臂中的至少一个目标子模块生成控制信号，使得跨越臂的电压在电压过渡过程中逐渐变化。 使用上述方法，可以提供平衡良好的电容器电压，这可以提供在相应臂的电压过渡过程中电压逐渐变化的方波，同时通过软开关满足臂电流的要求。 因此，即使在较高的开关频率下也可以降低开关损耗，从而可以提高系统效率。

公开(公告)号：WO2014166026A1

公开(公告)日：2014-10-16

申请号：PCT/CN2013/073794

申请日：2013-04-07

Applicant: ABB TECHNOLOGY LTD. ,  YAO, Dawei ,  YANG, Xiaobo ,  YUAN, Chunming

Inventor： YAO, Dawei ,  YANG, Xiaobo ,  YUAN, Chunming

IPC: H02G7/16

CPC classification number: H02G1/02 ,  H02G7/16

Abstract: Methods for de-icing transmission lines in a 4-terminal (or 3-terminal) bipolar series MTDC system include: bypassing each converter (R 1 -, R 2 -, I2-, I1-) of a kind of pole in all terminals and making all transmission lines of the kind of pole functioned under metallic return mode; and reconnecting the converter in parallel with a converter (R 1 +, R 2 +, I2+, I1+) of a contrary pole in the same terminal individually. For de-icing the target transmission lines, the de-icing operation can be realized without impact on other unselected transmission lines. Hence, the methods are more practical and flexible for de-icing implementation on series MTDC system.

Abstract translation: 在四端（或三端）双极串联MTDC系统中除冰传输线的方法包括：绕过所有端子中的一种极的每个转换器（R1-，R2-，I2-，I1-），并使 所有这些极点的传输线在金属返回模式下起作用; 并将转换器与相同端子中相反极的转换器（R1 +，R2 +，I2 +，I1 +）并联连接。 为了对目标传输线进行除冰，可以实现除冰操作而不影响其他未选择的传输线。 因此，该方法对于系列MTDC系统的除冰实现更为实用和灵活。

公开(公告)号：WO2019113771A1

公开(公告)日：2019-06-20

申请号：PCT/CN2017/115587

申请日：2017-12-12

Applicant: ABB SCHWEIZ AG ,  FAN, Guoxing ,  ZONG, Sheng ,  YANG, Xiaobo

Inventor： FAN, Guoxing ,  ZONG, Sheng ,  YANG, Xiaobo

IPC: H02J7/34

Abstract: A reconfigurable electric vehicle charging system (1), including: a first power conversion circuit (10) having a first port (100) and a second port (101), being configured to convert a first AC power input into a first DC power output for charging the electric vehicle in a first power flow direction (D1) from the first port (100) to the second port (101); a second power conversion circuit (11) having a third port (110) and a fourth port (111), being configured to selectively operate in either of conversion of a second AC power input into a second DC power output and conversion of a first DC power input into the second DC power output both in a second power flow direction (D2) from the third port (110) to the fourth port (111), wherein the second DC power output is arranged for charging the electric vehicle; and a switching device (12), being configured to select either of the second AC power input and the first DC power input of the second power conversion circuit (11). This allows for a relatively lower power capacity for a power converter thereof, manufacturing cost, power losses and physical size can be reduced.

公开(公告)号：WO2017020269A1

公开(公告)日：2017-02-09

申请号：PCT/CN2015/086099

申请日：2015-08-05

Applicant: ABB SCHWEIZ AG ,  YANG, Xiaobo ,  BERGDAHL, Bernt ,  YUAN, Chunming ,  YAO, Dawei ,  YANG, Chao

Inventor： YANG, Xiaobo ,  BERGDAHL, Bernt ,  YUAN, Chunming ,  YAO, Dawei ,  YANG, Chao

IPC: H01H9/54

CPC classification number: H01H9/542 ,  G05F1/00 ,  H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: It is provided with a bidirectional power valve (1) for current occurring in a high voltage DC conductor, control method therefore, hybrid multi-terminal HVDC System using the same. The bidirectional power valve (1) includes a first power diode arrangement (10) of a first conducting direction (D1), a second power diode (11) arrangement of a second conducting direction (D2); a mechanical disconnector (12), being connected with the second power diode arrangement (11) in series; wherein: the first power diode arrangement (10) and the series-connected second power diode arrangement (11) and the mechanical disconnector (12) are connected in parallel; and the first conducting direction (D1) of the first power diode arrangement (10) and the second conducting direction (D2) of the second power diode arrangement (11) are opposite to each other. The current commutation and re-commutation can be achieved with less requirement of the timing accuracy of switching event which makes the usage of a mechanical disconnector (12) and power diode feasible. This will then result in a significant reduction of cost and power transfer losses.

Abstract translation: 它提供有用于在高压DC导体中发生的电流的双向功率阀（1），因此控制方法是使用它的混合多端子HVDC系统。 双向功率阀（1）包括第一导电方向（D1）的第一功率二极管装置（10），第二导电方向（D2）的第二功率二极管（11）布置。 机械隔离开关（12），与第二功率二极管装置（11）串联连接; 其中：所述第一功率二极管装置（10）和所述串联连接的第二功率二极管装置（11）和所述机械断路器（12）并联连接; 并且第一功率二极管装置（10）的第一导通方向（D1）和第二功率二极管装置（11）的第二导通方向（D2）彼此相反。 可以通过更少的切换事件的定时精度要求来实现当前的换向和重新换向，这使得机械隔离开关（12）和功率二极管的使用成为可能。 这将导致成本和功率传输损失的显着降低。

公开(公告)号：WO2014071597A1

公开(公告)日：2014-05-15

申请号：PCT/CN2012/084348

申请日：2012-11-09

Applicant: ABB TECHNOLOGY LTD. ,  YAO, Dawei ,  YANG, Xiaobo ,  YUAN, Chunming

Inventor： YAO, Dawei ,  YANG, Xiaobo ,  YUAN, Chunming

IPC: H02M3/28

CPC classification number: H02M7/49 ,  H02J3/36 ,  H02M3/335 ,  H02M7/7575 ,  H02M2001/0093 ,  Y02E60/60

Abstract: A step-down DC autotransformer for HVDC and a system thereof are disclosed. The monopolar topology of the DC autotransformer comprises a first AC/DC converter, a second AC/DC converter, an AC transformer and an energizing component; in which the DC side of the first AC/DC converter is connected between a high DC voltage line and a low DC voltage line; the DC side of the second AC/DC converter is connected between the low DC voltage line and a neutral bus; the AC sides of the first AC/DC converter and second AC/DC converter are connected via the AC transformer; and the energizing component is connected between the low DC voltage line and the neutral bus. The step-down DC autotransformer also can be a bipolar topology. For the proposed solutions, the power capacity of each converter or AC transformer is only part of the transmitted power, which depends on the DC/DC step-down ratio. Therefore the step-down DC autotransformer has low cost, small footprint and high performance.

Abstract translation: 公开了一种用于HVDC的降压式DC自耦变压器及其系统。 DC自耦变压器的单极拓扑结构包括第一AC / DC转换器，第二AC / DC转换器，AC变压器和通电部件; 其中第一AC / DC转换器的DC侧连接在高DC电压线和低DC电压线之间; 第二AC / DC转换器的直流侧连接在低直流电压线和中性母线之间; 第一AC / DC转换器和第二AC / DC转换器的交流侧通过交流变压器连接; 并且通电部件连接在低直流电压线和中性线之间。 降压式直流自耦变压器也可以是双极拓扑。 对于所提出的解决方案，每个转换器或交流变压器的功率容量只是传输功率的一部分，这取决于DC / DC降压比。 因此，降压式直流自耦变压器具有成本低，占地面积小，性能高的特点。

公开(公告)号：WO2013152482A1

公开(公告)日：2013-10-17

申请号：PCT/CN2012/073796

申请日：2012-04-11

Applicant: ABB TECHNOLOGY LTD. ,  YAO, Dawei ,  YANG, Xiaobo ,  YUE, Chengyan

Inventor： YAO, Dawei ,  YANG, Xiaobo ,  YUE, Chengyan

IPC: H02J3/36

CPC classification number: H02J3/36 ,  H02J13/0006 ,  Y02E40/76 ,  Y02E60/60 ,  Y04S10/545

Abstract: A master control method for a series multi-terminal direct current (MTDC) system and elements thereof. The method comprises: choosing one terminal as a current setting terminal (CST) and defining other terminals as voltage setting terminals (VST) (302); configuring a current reference of the series MTDC system as the input of the CST converter, generating current values for each VST converter (304) based on the current reference and different margins thereof respectively and making the minimum value of current reference in the rectifier side larger than the maximum value of current reference in the inverter side (306). The method for series MTDC system and elements thereof can regulate and optimize the active power and reactive power, reduce the power losses, and control the distribution of the reactive power.

Abstract translation: 一种串联多端子直流（MTDC）系统的主控制方法及其元件。 该方法包括：选择一个终端作为当前设置终端（CST），并将其他终端定义为电压设置终端（VST）（302）; 将串联MTDC系统的电流参考配置为CST转换器的输入，基于电流参考和不同余量分别为每个VST转换器（304）产生电流值，并使整流器侧电流参考值的最小值较大 超过逆变器侧的电流基准的最大值（306）。 串联MTDC系统及其元件的方法可以调节和优化有功功率和无功功率，降低功率损耗，并控制无功功率的分布。

公开(公告)号：WO2020248249A1

公开(公告)日：2020-12-17

申请号：PCT/CN2019/091358

申请日：2019-06-14

Applicant: ABB POWER GRIDS SWITZERLAND AG ,  ANDERSSON, Mats ,  YANG, Xiaobo ,  XIE, Hailian

Inventor： ANDERSSON, Mats ,  YANG, Xiaobo ,  XIE, Hailian

IPC: H02J3/36

Abstract: It provides a DC system converted from an AC system with phase line A, phase line B and phase line C and tis control method. The DC system includes: a first converter station and a second converter station connected by a first phase line and a second phase line selected from the phase line A, the phase line B and the phase line C for transmission of DC power therebetween; a first leg being arranged to connect across DC side of the first converter station, having a first controllable power switch in its upper leg and a second controllable power switch in its lower leg, which are connected in series via a first middle point; a second leg being arranged to connect across DC side of the second converter station, having a third controllable power switch in its upper leg and a fourth controllable power switch in its lower leg, which are connected in series via a second middle point; a bi-directional power switch, being arranged in a third phase line selected from the phase line A, the phase line B and the phase line C; and a controller; wherein: the third phase line is arranged to connect the first middle point and the second middle point; and the controller is configured to turn on the bi-directional power switch and both of the controllable power switches in the respective upper/lower legs so as to allow a current to flow through them. By having the above solutions, at different stages, the controller controls to ether turn on the bi-directional power switch and the power switches in the upper portion of the legs; or turn on the bi-directional power switch and the power switches in the lower portion of the legs. In the former situation, the full current between the two stations is carried by the second phase line, whereas the first phase line and the third phase line are sharing the current flowing in the other direction; and in the latter situation, the full current between the two stations is carried by the first phase line, whereas the second phase line and the third phase line are sharing the current flowing in the other direction.

公开(公告)号：WO2019109271A1

公开(公告)日：2019-06-13

申请号：PCT/CN2017/114850

申请日：2017-12-06

Applicant: ABB SCHWEIZ AG ,  ANDERSSON, Mats ,  YUAN, Chunming ,  YANG, Xiaobo ,  YAO, Dawei ,  LI, Qinan

Inventor： ANDERSSON, Mats ,  YUAN, Chunming ,  YANG, Xiaobo ,  YAO, Dawei ,  LI, Qinan

IPC: H02J3/36

Abstract: A VSC system (200) of a HVDC system and rectifier and inverter stations associated therewith are provided. The VSC system (200) of the HVDC system is upgraded from a LCC HVDC system (100) and includes a plurality of LCC transformers (110-1, 110-2, 110-3, 110-4) of the LCC HVDC system (100) that are used to transform AC voltage. The VSC system (200) also includes a plurality of VSC converter units (220-1, 220-2, 220-3, 220-4) substituting LCC converter units (120-1, 120-2, 120-3, 120-4) of the LCC HVDC system (100). The VSC converter units (220-1, 220-2, 220-3, 220-4) are connected in series and coupled to the plurality of LCC transformers (110-1, 110-2, 110-3, 110-4) and converts AC voltage into DC voltage or otherwise. The VSC system (200) of the HVDC system further includes at least one bypass breaker (230-1, 230-2, 230-3, 230-4). Each breaker (230-1, 230-2, 230-3, 230-4) is connected in parallel with at least one of the plurality of VSC converter units (220-1, 220-2, 220-3, 220-4) and operable to be closed to bypass at least one VSC converter unit (220-1, 220-2, 220-3, 220-4). By reusing costly LCC transformers (110-1, 110-2, 110-3, 110-4) from a LCC system and with the help of the bypass breaker (s), the VSC system (200) of the HVDC system can be built and works appropriately in a cost-effective way.