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公开(公告)号:US11486251B2
公开(公告)日:2022-11-01
申请号:US17092570
申请日:2020-11-09
Applicant: ABB Schweiz AG
Inventor: Camilo Lopez , Mark Foltz , Steve Miller , Kevin Dowdell , Mark Wieland , Alan Majors , Xudong Yang
IPC: F01C20/28 , G01P21/02 , G01R31/28 , F01D17/06 , F02C9/28 , F01D21/02 , H02J3/38 , H02J3/40 , F01K13/00 , F01K13/02 , F16K37/00
Abstract: A speed control system and a power load balance detector for a turbine is provided. The speed control system includes a speed wheel with a plurality of teeth. A timer stores a time stamp when each of the teeth passes by a speed probe. A first speed estimate is determined for overspeed protection, and a second speed estimate is determined for operational speed control. The power load balance detector trips or shuts down the turbine when an unbalance is above a first threshold and the speed of the turbine is above a second threshold.
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公开(公告)号:US20210054790A1
公开(公告)日:2021-02-25
申请号:US17092570
申请日:2020-11-09
Applicant: ABB Schweiz AG
Inventor: Camilo Lopez , Mark Foltz , Steve Miller , Kevin Dowdell , Mark Weland , Alan Majors , Xudong Yang
Abstract: A speed control system and a power load balance detector for a turbine is provided. The speed control system includes a speed wheel with a plurality of teeth. A timer stores a time stamp when each of the teeth passes by a speed probe. A first speed estimate is determined for overspeed protection, and a second speed estimate is determined for operational speed control. The power load balance detector trips or shuts down the turbine when an unbalance is above a first threshold and the speed of the turbine is above a second threshold.
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