公开(公告)号：US08373293B2

公开(公告)日：2013-02-12

申请号：US13090420

申请日：2011-04-20

申请人： Stephan Engelhardt ,  Lars Kock

发明人： Stephan Engelhardt ,  Lars Kock

IPC分类号： F03D9/00 ,  H02P9/04

CPC分类号： H02P9/006 ,  F03D9/255 ,  H02P9/007 ,  H02P9/10 ,  H02P29/0241 ,  H02P2101/15 ,  H02P2207/073 ,  Y02E10/72

摘要： A protection system for a doubly-fed induction machine; with a stator and a rotor. The stator of the doubly-fed induction machine is connected to a grid, and the rotor of the doubly-fed induction machine is connected to the grid via a converter. The converter includes a machine side converter, and a DC-link and a line side converter. The protection system also includes at least one crowbar, the crowbar being connected to the rotor, at least one DC-chopper provided in the DC-link, a converter controller, and a separate protection device for DC-chopper and the at least one crowbar.

摘要翻译： 双馈感应电机的保护系统; 具有定子和转子。 双馈感应电机的定子连接到电网，双馈感应电机的转子通过转换器连接到电网。 该转换器包括机器侧转换器，以及DC链路和线路侧转换器。 保护系统还包括至少一个撬棒，撬棒连接到转子，设置在DC链节中的至少一个DC斩波器，转换器控制器和用于DC斩波器的单独的保护装置，以及至少一个撬棒 。

公开(公告)号：US20110210553A1

公开(公告)日：2011-09-01

申请号：US13090420

申请日：2011-04-20

申请人： Stephan Engelhardt ,  Lars Kock

发明人： Stephan Engelhardt ,  Lars Kock

IPC分类号： H02H7/06 ,  H02P9/04

CPC分类号： H02P9/006 ,  F03D9/255 ,  H02P9/007 ,  H02P9/10 ,  H02P29/0241 ,  H02P2101/15 ,  H02P2207/073 ,  Y02E10/72

摘要： The invention relates to a protection system of a doubly-fed induction machine, the system comprises a doubly-fed induction machine with a stator and a rotor, the stator of said doubly-fed induction machine is connected to a grid and the rotor of said doubly-fed induction machine is connected to the grid via a converter, said converter comprises a machine side converter, a DC-link and a line side converter. The system comprises additionally at least one crowbar, said crowbar is connected to the rotor, at least one DC-chopper provided in the DC-link, a converter controller and a separate protection device. The object of the present invention to provide a protection system and a protection method of a doubly-fed induction machine which can be easily used with high sampling rates and which provides a good protection for the doubly fed induction machine is resolved in that the DC-chopper and the crowbar are controlled with the separate protection device.

摘要翻译： 本发明涉及双馈感应电机的保护系统，该系统包括具有定子和转子的双馈感应电机，所述双馈感应电机的定子连接到电网并且所述转子的所述转子 双馈感应电机通过转换器连接到电网，所述转换器包括机器侧转换器，直流链路和线路侧转换器。 该系统还包括至少一个撬棒，所述撬棒连接到转子，设置在DC链路中的至少一个DC斩波器，转换器控制器和单独的保护装置。 本发明的目的是提供一种双馈感应电机的保护系统和保护方法，其可以容易地以高采样率使用并且为双馈感应电机提供良好的保护，解决了DC- 斩波器和撬棍由独立的保护装置控制。