Modelling and Detection of Stator Incipient Open Circuit Fault in Three-Phase Induction Motor

2018 ◽  
Author(s):  
Rajnish Chawla ◽  
B Akhil Vinayak ◽  
G Jagadanand
Keyword(s):  
Induction Motor ◽  
Open Circuit ◽  
Three Phase

Virtual Instrumentation Based Analysis of Induction Motor

2014 ◽  
Vol 984-985 ◽  
pp. 970-976
Author(s):  
Memala W. Abitha ◽  
V. Rajini
Keyword(s):  
Induction Motor ◽  
Life Time ◽  
Open Circuit ◽  
Virtual Instrumentation ◽  
Repair Work ◽  
Three Phase ◽  
Stationary Reference Frame ◽  
Stator Fault ◽  
Motor Failure ◽  
Vector Approach

The three phase induction motor is a popularly used machine in many of the industries, which is well known for its robustness, reliability, cost effectiveness, efficient and safe operation. The unnoticed manufacturing failure, mistakes during repair work, exceeding life time may be some of the causes of the induction motor failure, which may lead to the unknown shut down time of the industry. The condition monitoring plays important role as it has the influence on the production of materials and profit. In our work, the induction motor is modelled using stationary reference frame and analysed for single phasing stator fault. The techniques used in detecting the single phasing (open circuit) failures are Park’s vector approach and Fast Fourier Transform (FFT). Park’s vector approach is used for detecting the faults occurring at various phases and FFT is used for detecting the faults of the induction motor working under no load and varying loading conditions.

Detection of Open-Circuit Fault in a Three-Phase Voltage Inverter Fed Induction Motor

2016 ◽  
Vol 9 (6) ◽  
pp. 374 ◽  
Author(s):  
Bilal Djamal Eddine Cherif ◽  
Azeddine Bendiabdellah ◽  
Mohamed Amine Khelif
Keyword(s):  
Induction Motor ◽  
Open Circuit ◽  
Phase Voltage ◽  
Voltage Inverter ◽  
Three Phase

Experimental Analysis of Performance and Thermal Capability of Three Phase Squirrel Cage Induction Motor Using Plastered Composite Conductors

2019 ◽  
Vol 4 (3) ◽  
pp. 201-205
Author(s):  
N. Balamurugan ◽  
S. Selvaperumal
Keyword(s):  
Induction Motor ◽  
Short Circuit ◽  
Open Circuit ◽  
Ac Losses ◽  
Nano Composites ◽  
Good Accord ◽  
Three Phase ◽  
Improved Performance ◽  
Cage Induction Motor ◽  
Run Test

Background: This article deals with the analysis on improved performance and efficiency of induction motor by using nano composites for stator winding. Methods: The nanocomposites are added with different enamel. Enamel is mostly preferred for induction motors’ winding, due to three main reasons: adhesion, infusion and plaster. To predetermine the plaster and nanocomposite conductor’s behavior when they are used for transmitting AC currents and developing AC magnetic field, a numerical analysis is performed. The total heat losses are determined by the heat run test. Open circuit and short circuit tests are used to analyze the performance and efficiency of the proposed induction motor. Results: The AC losses of composite and plaster conductors having good accord are compared with previous solid and hollow conductors. Analysis of the coil by a composite and plaster conductor shows that the AC losses in low current are lower than the coil, which is wrapped by a solid, and hallow conductors. Due to this reason, composite and plaster conductors are considered advantageous for low and medium power motors. Conclusion: Adding nano composites with the plaster material will help to improve electrical, thermal and mechanical characteristics. The property of enamel can change the lifetime of induction motor. The induction motor winding makes use of nano composites SiO2 and TiO2 with enamel coated.

Thermal analysis and efficiency of an induction motor driven by a fault-tolerant multilevel inverter using FEM

2015 ◽  
Vol 34 (2) ◽  
pp. 573-589 ◽  
Author(s):  
Bruno R. O. Baptista ◽  
André M.S. Mendes ◽  
Sérgio M.A. Cruz
Keyword(s):  
Control System ◽  
Thermal Behavior ◽  
Induction Motor ◽  
Motor Behavior ◽  
Fault Tolerant ◽  
Experimental Tests ◽  
Open Circuit ◽  
Matlab Simulink ◽  
Content Type ◽  
Three Phase

Purpose – The purpose of this paper is to present a comparative study of the thermal behavior and efficiency of an induction motor fed by a fault-tolerant Three-Level Neutral Point Clamped (3LNPC) inverter, under normal conditions as well as after a post-fault reconfiguration, following an open-circuit fault in the inverter. For this purpose, a Matlab/Simulink model and three-phase induction motor models using a finite element method (FEM) software were developed. Besides, some experimental tests were conducted for different values of the induction motor load torque and speed reference to validate the models. Design/methodology/approach – To assess the thermal behavior and efficiency of the motor, electromagnetic and thermal models using a FEM software were developed. The coupling with the inverter drive is accomplished through a developed model in Matlab/Simulink which also includes the control system. The simulation tests were performed for a healthy and faulty inverter at different operating points of the three-phase induction motor. To validate the FEM models some experimental tests were performed. Findings – When the inverter operates in reconfigured mode the motor losses are higher and consequently temperature is higher and the motor efficiency is lower. The developed models are an alternative to a more detailed study of the motor when fed by a 3LNPC inverter and consequent optimization of the control system. Originality/value – With the developed tools, a better understanding of the motor behavior and performance is gained, allowing to forecast scenarios and optimize fault-tolerant control strategies for the drive.

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