公开(公告)号：US20230358127A1

公开(公告)日：2023-11-09

申请号：US18353342

申请日：2023-07-17

申请人： YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.

发明人： Dekun TIAN ,  Tao KOU ,  Wanchun CHA ,  Zhijie LIU ,  Xin LI ,  Jianglei ZOU ,  Libin ZHOU ,  Xu LIU ,  Zhuqing MAO ,  Rikui ZHANG ,  Peng ZHANG ,  Jianwei WANG ,  Jihua WANG ,  Xiaolei JI ,  Xincheng LI ,  Yuxuan SUN ,  Yipeng WU ,  Chunqiang LAN ,  Liang LV

IPC分类号： F01D15/08 ,  E21B43/26 ,  F04B17/05 ,  F04B49/06 ,  F01D15/12 ,  F04B49/02

CPC分类号： E21B43/2607 ,  F01D15/08 ,  F01D15/12 ,  F04B17/05 ,  F04B49/02 ,  F04B49/065

摘要： A gas turbine overspeed protection method includes: a power utilization load of a generator is acquired, and a rotating speed value of a gas turbine is acquired; whether the power utilization load suddenly decreases or disappears is judged, and if so, an eddy current retarder is controlled by a controller to simulate the power utilization load to provide a braking torque for the generator; or, whether the rotating speed value exceeds a set speed range is judged, and if so, the gas turbine is controlled by the controller to reduce fuel supply, and a discharge valve of a gas compressor is opened to discharge a high-pressure gas to reduce the power output and the rotating speed of the gas turbine.