【摘要】 采用有功功率法,将转矩测量理论与电气测量理论有机地集合,把对阀门转矩的测量转化为对驱动转动轴的有功功率和转速的测试,不仅能有效地测试出转矩,而且可以同时监测驱动电机工作时的三相电压、电流、功率等,经综合评判给出更合理的诊断。通过模拟阀门的各种故障形式,采集数据并提取分析信号特征,利用模糊聚类法建立故障数据库。通过模式识别分析实时故障,给出辨识结果。试验表明:这种诊断方法简单、有效,对于多种故障模式有很细致的表征。更多还原

【Abstract】 With the torque measurement method using Active Power,torque measurement theory and electrical measurement theory can be combined to measure the active power and the rotation speed of the drive shaft,instead of the measurement of valve torque.In this way,not only the torque can be effectively measured,but also the three-phase motor voltage,current,power,etc.of the driving motor can be monitored at the same time,and thus a more reasonable diagnosis result can be obtained based on comprehensive evaluation.By simulating the various valve fault forms,based on the collection of data and the analysis of signal features,fault database is developed by fuzzy clustering method.By pattern recognition,the real-time faults are analyzed,and the results are given.Tests show that this diagnosis method is simple,effective,and with detailed characterization for a variety of fault modes.更多还原