公开(公告)号：US09722505B2

公开(公告)日：2017-08-01

申请号：US14941122

申请日：2015-11-13

Applicant: DELTA ELECTRONICS, INC.

Inventor： Changyong Wang ,  Li Cai ,  Yansong Lu ,  Fei Lu

IPC: H02M5/458 ,  H02J3/38 ,  H02M7/25 ,  H02M1/32 ,  H02M7/49 ,  H02M1/00

CPC classification number: H02M5/458 ,  H02J3/386 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/25 ,  H02M7/49 ,  H02M2001/0032 ,  H02M2001/0074 ,  Y02B70/16 ,  Y02E10/763

Abstract: A wind power conversion system includes plural first converting circuits and a second converting circuit. The plural first converting circuits perform a power converting task, and include respective first generator-side terminals and respective first network-side terminals. The first generator-side terminals are electrically connected with a wind power generator. The first network-side terminals are electrically connected with corresponding secondary windings of an isolating transformer. The second converting circuit includes plural second generator-side terminals and a second network-side terminal. The second network-side terminal is electrically connected with the corresponding secondary winding of plural secondary windings of the isolating transformer. The second generator-side terminals are serially connected with the corresponding first generator-side terminals of the first converting circuits. When the second converting circuit is enabled, the power converting task of the plural first converting circuits is shared by the second converting circuit.

公开(公告)号：US20160211763A1

公开(公告)日：2016-07-21

申请号：US14941122

申请日：2015-11-13

Applicant: DELTA ELECTRONICS, INC.

Inventor： Changyong Wang ,  Li Cai ,  Yansong Lu ,  Fei Lu

IPC: H02M5/458

CPC classification number: H02M5/458 ,  H02J3/386 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/25 ,  H02M7/49 ,  H02M2001/0032 ,  H02M2001/0074 ,  Y02B70/16 ,  Y02E10/763

Abstract: A wind power conversion system includes plural first converting circuits and a second converting circuit. The plural first converting circuits perform a power converting task, and include respective first generator-side terminals and respective first network-side terminals. The first generator-side terminals are electrically connected with a wind power generator. The first network-side terminals are electrically connected with corresponding secondary windings of an isolating transformer. The second converting circuit includes plural second generator-side terminals and a second network-side terminal. The second network-side terminal is electrically connected with the corresponding secondary winding of plural secondary windings of the isolating transformer. The second generator-side terminals are serially connected with the corresponding first generator-side terminals of the first converting circuits. When the second converting circuit is enabled, the power converting task of the plural first converting circuits is shared by the second converting circuit.

Abstract translation: 风力转换系统包括多个第一转换电路和第二转换电路。 多个第一转换电路执行电力转换任务，并且包括各自的第一发电机侧端子和各个第一网络侧端子。 第一发电机侧端子与风力发电机电连接。 第一网侧端子与隔离变压器的相应次级绕组电连接。 第二转换电路包括多个第二发生器侧端子和第二网络侧端子。 第二网侧端子与隔离变压器的多个次级绕组的对应次级绕组电连接。 第二发生器侧端子与第一转换电路的对应的第一发生器侧端子串联连接。 当第二转换电路被使能时，多个第一转换电路的功率转换任务由第二转换电路共享。

公开(公告)号：US10050573B2

公开(公告)日：2018-08-14

申请号：US15068659

申请日：2016-03-14

Applicant: DELTA ELECTRONICS, INC.

Inventor： Chang-Yong Wang ,  Fei Lu ,  Hai-Fen Xue ,  Li Chen ,  Liang Cao

IPC: H02P9/00 ,  F03D7/02 ,  F03D9/25

Abstract: A wind power generation system and a control method thereof are provided herein. The wind power generation system includes a doubly-fed generator, a generator-side converter, a grid-side converter and an auxiliary converter. The doubly fed generator includes a stator winding and a rotor winding. The stator winding is coupled to a grid. The generator-side converter is coupled to the rotor winding. The grid-side converter is coupled between the generator-side converter and the grid. The auxiliary converter includes a first side and a second side. The first side is coupled to the stator winding. The second side is coupled between the generator-side converter and the grid-side converter. The generator-side converter, the grid-side converter and the auxiliary converter use the same DC bus.

公开(公告)号：US09680306B2

公开(公告)日：2017-06-13

申请号：US14972667

申请日：2015-12-17

Applicant: DELTA ELECTRONICS,INC

Inventor： Haifen Xue ,  Li Chen ,  Fei Lu ,  Changyong Wang

IPC: F03D9/00 ,  H02P9/04 ,  H02J3/38 ,  H02P11/00

CPC classification number: H02J3/386 ,  Y02E10/725 ,  Y02E10/763

Abstract: A wind power generation control device, coupled between a wind power generator and a power grid, includes a converter unit and a switching unit. The converter unit includes a generator-side converter, a DC bus capacitor and a grid-side converter, wherein an AC-side of the generator-side converter is coupled to a rotor-side of the wind power generator, a DC-side of the generator-side converter is coupled to the DC bus capacitor, a DC-side of the grid-side converter is coupled to the DC bus capacitor, and an AC-side of the grid-side converter is coupled to the power grid. The switching unit is configured to switch the wind power generation control device between the doubly-fed power generation operating mode and the full-power operating mode according to a wind speed. A wind power generation system uses the wind power generation control device.