On-line Failure Diagnostics for Steam Turbine Hydraulic Governing System
On-line Failure Diagnostics for Steam Turbine Hydraulic Governing System出 版 物：《Journal of Harbin Institute of Technology(New Series)》 (哈尔滨工业大学学报（英文版）)
年 卷 期：1995年第2卷第1期
页 面：37-42页
学科分类：080703[工学-动力机械及工程] 080704[工学-流体机械及工程] 08[工学] 0807[工学-动力工程及工程热物理]
主 题：ss: Steam turbine governing system block failure on-line diagnostics
摘 要：This paper presents an on-line failure diagnostic method for steam turbine hydraulic governing system. This method uses the estimated values of friction on sliding valves to calculuate the corresponding dead band. Under load rejection, the steam turbine s additional overspeed caused by these dead bands are studied through computer simulation. This on-line detection of dead bands can realize the failure detection of blockage fault of sliding valves.
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