公开(公告)号：EP2940824A1

公开(公告)日：2015-11-04

申请号：EP14275095.9

申请日：2014-04-29

Applicant: ALSTOM Technology Ltd

Inventor： Fintzos, Georgios ,  Whitehouse, Robert Stephen ,  Barker, Carl David

IPC: H02J3/38 ,  H02M5/458 ,  H02M7/757 ,  H02P9/10

CPC classification number: H02J5/00 ,  H02J3/382 ,  H02J3/386 ,  H02J2003/365 ,  H02M5/40 ,  H02M7/02 ,  H02P9/102 ,  H02P2101/15 ,  H02P2201/01 ,  H02P2201/03 ,  Y02E10/763

Abstract: A wind farm side voltage source converter (32; 94) comprises a DC terminal (40) for connection to a DC transmission link (38), an AC terminal (42) for connection to a wind farm (44) that includes at least one wind turbine (46), and a main controller (10; 20; 96). The main controller (10; 20; 96) is configured to modify an active power demand (P demand ) of the voltage source converter (32; 94) which is received from a higher level controller by introducing an artificial inertia factor and/or in response to a measured DC voltage (V dc_msr ) at the DC terminal (40).

Abstract translation: 风力发电场侧电压源转换器（32; 94）包括用于连接到DC传输链路（38）的DC端子（40），用于连接到风力发电场（44）的AC端子（42），其包括至少一个 风力涡轮机（46）和主控制器（10; 20; 96）。 主控制器（10; 20; 96）被配置为通过引入人造惯性因子和/或在主控制器（10; 20; 96）中修改从较高级控制器接收的电压源转换器（32; 94）的有功功率需求（P需求） 对直流端子（40）处的测量直流电压（V dc_msr）的响应。

公开(公告)号：EP2846451A1

公开(公告)日：2015-03-11

申请号：EP13275200.7

申请日：2013-09-04

Applicant: ALSTOM Technology Ltd

Inventor： Whitehouse, Robert Stephen ,  Barker, Carl David

IPC: H02M7/483

CPC classification number: H02M5/458 ,  H02J2003/365 ,  H02M7/483 ,  H02M2007/4835

Abstract: A modular power converter (10) comprises:
a first terminal (12,14) for connection to a first electrical network (24);
a second terminal (18) for connection to a second electrical network (26);
at least one module (28) connected between the first and second terminals (12.14.18), the or each module (28) including at least one switching element (30) and at least one energy storage device (32), the or each switching element (30) and the or each energy storage device (32) in the or each module (28) combining to selectively provide a voltage source, the or each switching element (30) in the or each module (28) being switchable to transfer power between the first and second terminals (12,14,18); and
a control unit (34) being configured to selectively control switching of the or each switching element (30) in the or each module (28) to store energy from or release energy to either or both of the first and second terminals (12,14,18) so as to inhibit a modulation of power flow at one of the first and second terminals (12,14,18) from modifying a power flow at the other of the first and second terminals (12,14,18).

Abstract translation: 一种模块化功率转换器（10），包括：用于连接到第一电网（24）的第一端子（12,14）;用于连接到第一电网 第二终端（18），用于连接到第二电网（26）; 至少一个连接在第一和第二端子（12.14.18）之间的模块（28），所述或每个模块（28）包括至少一个开关元件（30）和至少一个能量存储装置（32），所述或每个 开关元件（30）以及所述或每个模块（28）中的所述或每个能量存储装置（32）组合以选择性地提供电压源，所述模块或每个模块（28）中的所述或每个开关元件（30） 在第一和第二端子（12,14,18）之间传输功率; 和控制单元（34），所述控制单元（34）被配置为选择性地控制所述或每个模块（28）中的所述或每个开关元件（30）的切换，以从第一和第二端子（12,12） 以便抑制第一和第二端子（12,14,18）中的一个端子处的功率流的调制改变第一和第二端子（12,14,18）中的另一个端子处的功率流。

公开(公告)号：EP2869419A1

公开(公告)日：2015-05-06

申请号：EP13275268.4

申请日：2013-10-29

Applicant: ALSTOM Technology Ltd

Inventor： Adamczyk, Andrzej ,  Barker, Carl David

IPC: H02J1/02 ,  H02J3/36 ,  H02M7/757

CPC classification number: H02M5/44 ,  H02J1/02 ,  H02J3/36 ,  H02M7/7575 ,  Y02E60/60

Abstract: A power transmission network (10) comprises a plurality of converters (12a,12b,12c,12d). Each converter (12a,12b,12c,12d) includes first and second electrical terminals (16,18), each first electrical terminal (16) being connectable to an electrical network (28a,28b,28c,28d), each second electrical terminal (18) being operatively connected to at least one other second electrical terminal (18). At least one converter (12a,12b,12c,12d) is designated as a first converter, at least one converter (12a,12b,12c,12d) is designated as a second converter, at least one other converter (12a,12b,12c,12d) is designated as a third converter, the or each first converter includes a first controller, the or each first controller being configured to selectively operate the or each respective first converter to modulate a power flow at its first or second electrical terminal (16,18), and the or each second converter includes a second controller, the or each second controller being configured to selectively operate the or the respective second converter to modulate a power flow at its second electrical terminal (18) so as to generate a compensatory power to compensate for an imbalance in power within the power transmission network (10) caused by the modulation of power flow by the or each first converter and thereby inhibit the modulation of power flow by the or each first converter from modifying a power flow in the or each third converter.

Abstract translation: 输电网络（10）包括多个转换器（12a，12b，12c，12d）。 每个转换器（12a，12b，12c，12d）包括第一和第二电端子（16,18），每个第一电端子（16）可连接到电网（28a，28b，28c，28d），每个第二电端子 （18）可操作地连接到至少一个其它第二电端子（18）。 至少一个转换器（12a，12b，12c，12d）被指定为第一转换器，至少一个转换器（12a，12b，12c，12d）被指定为第二转换器，至少一个其他转换器（12a，12b， 12c，12d）被指定为第三转换器，所述或每个第一转换器包括第一控制器，所述或每个第一控制器被配置为选择性地操作所述或每个相应的第一转换器以调制其第一或第二电端子处的功率流（ 并且所述或每个第二转换器包括第二控制器，所述或每个第二控制器被配置为选择性地操作所述或相应的第二转换器以调制其第二电端子（18）处的功率流，以便产生 补偿功率以补偿由所述或每个第一转换器的功率流的调制引起的在所述输电网络（10）内的功率不平衡，从而阻止所述或每个第一转换器从修改的功率流的调制 在该或每个第三转换器中引入功率流。