Bulb Turbine Online Monitoring And Fault Analysis System Test Study

Because of the horizontally-mounted shaft system,the huge size of the equipment, the complex stucture of the units,and the various inducement of the failures of the bulb tubular turbines,this paper proposes a method to instantly monitor multiple parts and items of the units, in the light of the problems exist in the applied bulb tubular turbines at home and abroad. The purpose of this paper is to detect the factors which cause the instability of the units in time,so as to analyze the failures and to achieve the final protective maintenance. Furthermore,a complete on-line monitoring and fault-analyzing system is designed to reduce the difficulty of dispersive supervision of the workers in plants,as well as to decrease the equipment investment during the construction.The Paper proposed necessary to set up the on-line monitoring system for a bulb unit,detailed analysis local oscillator, local oscillator and fault discrimination of this model,and provides a theoretical basis for the whole system design.The paper described, such as time-domain analysis, frequency domain analysis, Bode plot analysis, waterfall chart analysis, trajectory analysis axis, the dynamic axis posture analysis, generators air-gap analysis, which used in principle and algorithm.According to characteristics of Bulb turbine shafting, proposed the importance of the generator air gap analysis, axis trajectory analysis and dynamic analysis, achieve the above analysis in the system of actual development problems.Base on school master in the study of monitoring system software of vertical hydroelectric generating units, this paper set monitoring items and monitoring points and complete analysis software which functionality and configuration is complete.And based on in the original vertical unit monitoring system, increased the generator air gap measurement and analysis capabilities.Finally, used the collected data of a domestic power plant units in this analysis system and get good pictures and data processing results of operations.Validate design of on-line monitoring and analysis software system based virtual instrument is reasonable and feasible.