Search results for "double cage rotor"

showing 3 items of 3 documents

Vibration signature analysis for rotor broken bar diagnosis in double cage induction motor drives

2013

The paper investigates the diagnosis of rotor broken bars in field oriented controlled (FOC) double cage induction motor drives, using current and vibration signature analysis techniques. The Impact of the closed loop control system cannot be neglected when the detection of asymmetries in the machine are based on the signature analysis of electrical variables. The proposed diagnosis approach is based on optimized use of wavelet analysis by a pre-processing of phase current or axial/radial vibration signals. Thus, the time evolution of the tracked rotor fault components can be effectively analyzed. This paper shows also the relevance of the fault components computed from axial vibration sign…

Engineeringadial vibration signalBar (music)machine vector controlinduction motor driverotor broken bar diagnosiSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettriciphase current signalFault (power engineering)VibrationWound rotor motorlaw.inventionINDUCTION MOTORSRotorlawControl theoryclosed loop control systemdouble cage rotortime evolutionInduction motorpreprocessingwavelet transformvibration signature analysielectric currentaxial vibration signalVector controlfield oriented controlfault diagnosticrotor faultRotor (electric)business.industrySquirrel-cage rotorclosed loop systemfault diagnosiStatorAC Machinecurrent signature analysiBarVibrationCONDITION MONITORINGTime-Frequency Analysidouble cage induction motor driveignal processingmaintenance engineeringwavelet analysibusinessInduction motor4th International Conference on Power Engineering, Energy and Electrical Drives
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Closed-loop bandwidth impact on MVSA for rotor broken bar diagnosis in IRFOC double squirrel cage induction motor drives

2013

This paper investigates the detectability of rotor broken bars in indirect rotor flux oriented control (IRFOC) for variable speed double cage induction motor drives, using vibration signature analysis techniques. The Impact of the closed loop control system cannot be neglected when the detection of rotor asymmetries in the machine is based on the signature analysis of electrical or mechanical variables. Therefore, the investigation of rotor fault components for different bandwidths of closed-loop regulators is necessary to evaluate its relevance in the above listed variables. This paper investigates the impact of the control system on relevance of the fault components computed from axial an…

Engineeringvibration signature analysis techniqueclosed-loop bandwidth impactrotor broken bar diagnosiSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettricielectrical variablelaw.inventionlawRotorclosed loop control systemcontrol impactInduction motorINDUCTION MOTOR DRIVESbandwidth PI regulatorrotor asymmetry detectionBandwidth (signal processing)closed loop systemStatorIRFOC double-squirrel cage induction motor driveFAULT DIAGNOSISrotor broken barmachine controlPI controlindirect rotor flux oriented controlMVSArotor broken bar detectabilityvariable speed double cage induction motor drivesquirrel cageinduction motor driveVibrationWound rotor motorrobust fault signatureQuantitative Biology::Subcellular ProcessesBandwidthControl theoryquirrel cage motordouble cage rotorrotor fault componentMachine controlaxial vibration signalbusiness.industrySquirrel-cage rotorRegulatormechanical variablefault diagnosiAC MachineBarCondition monitoringVibrationclosed-loop regulatorControl systembusinessrotor bar breakageClosed loopradial vibration signalInduction motor
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Quantitative Rotor Broken Bar Evaluation in Double Squirrel Cage Induction Machines under Dynamic Operating Conditions

2013

Advanced monitoring techniques leading to fault diagnosis and prediction of induction machine faults, operating under non-stationary conditions have gained strength because of its considerable influence on the operational continuation of many industrial processes. In case of rotor broken bars, fault detection based on sideband components issued from currents, flux, instantaneous control or power signals under different load conditions, may fail due to the presence of inter-bar currents that reduce the degree of rotor asymmetry, especially for double squirrel cage induction motors. But the produced core vibrations in the axial direction, can be investigated to overcome the limitation of the …

discrete wavelet transformEngineeringbusiness.industryRotor (electric)Squirrel-cage rotorBar (music)squirrel cage motorSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciFault (power engineering)FAULT DIAGNOSISFault detection and isolationPower (physics)law.inventionVibrationTime-Frequency AnalysisControl theorylawAC Machine Condition monitoring Double cage rotor fault diagnostics induction motor wavelet TransformbusinessInduction motor
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