Simulation of SVD Filtering Detection for Rotor Faults in Induction Motors
Once the rotor of an induction motor malfunctions,it has a significant negative impact on the motor body and production system.In order to timely and accurately detect rotor faults,a rotor fault detection method is pro-posed for induction motors using singular value decomposition filtering as the basic technology.Firstly,we analyzed the characteristic of rotor fault and obtain the basis for rotor fault detection.Secondly,we designed a dual-layer singu-lar value decomposition filtering technique,an effective order selection strategy,and a smooth energy demodulation technique,and integrated them together.And then,we designed a method to detect the induction motor rotor fault.Mo-reover,we combined the fault signal frequency with the detection basis to obtain the result of fault detection.Under the states of full load and half load,a simulation was carried out.The test results show that the proposed method al-ways highly fits the parameters corresponding to the ideal spectrum,and can detect the artificial broken-bar fault of rotor accurately and quickly,with better effect.Therefore,the method has significant accuracy and real-time detection ability,and is an effective for rotor fault detection.
Induction motorRotor failureSingular value decomposition filteringSmooth energy demodulationFault detection
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