- Patent Title: Reducing peak fault output current in a DC power generation system
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Application No.: US14828079Application Date: 2015-08-17
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Publication No.: US09608551B2Publication Date: 2017-03-28
- Inventor: Wen Ouyang , Jiaqi Liang , Li Qi
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Barnes & Thornburg LLP
- Main IPC: H02P9/10
- IPC: H02P9/10 ; H02P9/14 ; H02K3/16 ; H02P9/00 ; H02K11/04 ; H02K1/10

Abstract:
Technologies for reducing peak fault output current in a DC power generation system include a generator having a reduced damper winding and a controller to control a rectifier array to generate a DC power output. In some embodiments, the generator may have no damper windings, may have damper windings including a reduced number of damper bars, and/or may have damper windings having separated end ring mounts for each damper bar. The controller is configured to control the rectifier array so as to reduce oscillations of the DC output that may be due to the reduced damper windings. To do so, the controller is configured to generate the control signal based on an oscillation component of the DC power output. For example, the controller may generate an oscillation correction signal based on the DC power output and adjust a firing angle set point of the rectifier array based on the oscillation correction signal.
Public/Granted literature
- US20170054393A1 REDUCING PEAK FAULT OUTPUT CURRENT IN A DC POWER GENERATION SYSTEM Public/Granted day:2017-02-23
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