Investigations On 600MW Steamturbine Vibration Fault Diagnosis Method

In order to meet the life and production of a sharp increase in electricity demand, people need to keep on turbine capacity to transform and develop; However, with the increasing capacity of the units, the requirements for materials and operating environment will be correspondingly improved, especially the implementation of the "big pressure on the small" policy in the country after the capacity of the main generators have entered the era of 600MW, and the ensuing question is subtle vibration fault unit has wide implications, So its 600MW steam turbine vibration fault diagnosis becomes more important. In this paper, vibration 600MW steam turbine, describes the current process of 600MW turbine vibration diagnosis, and the latest research status. For turbine vibration fault mechanism analysis and based on actual operating conditions to interpret the scene. Time domain analysis for vibration fault feature extraction analysis applications are currently more commonly used, frequency domain analysis, time-frequency domain analysis were analyzed and processed, research and 600MW for large turbine vibration feature extraction methods, fault diagnosis is to take research more popular support vector machine diagnostic methods, and apply cross-validation and grid search elements, particle swarm optimization, genetic algorithms for support vector machine parameter optimization. According to their final possession of knowledge turbine vibration unit, select the most beneficial for corporate turbine vibration fault diagnosis system...