Invention Grant
- Patent Title: Protection system of a doubly-fed induction machine
- Patent Title (中): 双馈感应电机的保护系统
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Application No.: US13090420Application Date: 2011-04-20
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Publication No.: US08373293B2Publication Date: 2013-02-12
- Inventor: Stephan Engelhardt , Lars Kock
- Applicant: Stephan Engelhardt , Lars Kock
- Applicant Address: DE
- Assignee: Woodward Kempen GmbH
- Current Assignee: Woodward Kempen GmbH
- Current Assignee Address: DE
- Agency: Reinhart Boerner Van Deuren P.C.
- Main IPC: F03D9/00
- IPC: F03D9/00 ; H02P9/04
Abstract:
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.
Public/Granted literature
- US20110210553A1 Protection System of a Doubly-fed Induction Machine Public/Granted day:2011-09-01
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