scholarly journals Detection of Stator and Rotor Asymmetries Faults in Wound Rotor Induction Machines: Modeling, Test and Real-Time Implementation

2021 ◽  
Author(s):  
Shahin Hedayati Kia
Keyword(s):  
Real Time ◽  
Condition Monitoring ◽  
Classical Model ◽  
Induction Machine ◽  
Induction Machines ◽  
Time Data ◽  
Jules Verne ◽  
Three Phase ◽  
Experimental Test Bench ◽  
Different Levels

This chapter deals with detection of stator and rotor asymmetries faults in wound rotor induction machines using rotor and stator currents signatures analysis. This is proposed as the experimental part of fault diagnosis in electrical machines course for master’s degree students in electrical engineering at University of Picardie “Jules Verne”. The aim is to demonstrate the main steps of real-time condition monitoring development for wound rotor induction machines. In this regard, the related parameters of classical model of wound rotor induction machine under study are initially estimated. Then, the latter model is validated through experiments in both healthy and faulty conditions at different levels of the load. Finally, an algorithm is implemented in a real-time data acquisition system for online detection of stator and rotor asymmetries faults. An experimental test bench based on a three-phase 90 W wound rotor induction machine and a real-time platform for hardware-in-the-loop test are utilized for validation of the proposed condition monitoring techniques.

scholarly journals Reduced-Order Model of Rotor Cage in Multiphase Induction Machines: Application on the Prediction of Torque Pulsations

2020 ◽  
Vol 25 (1) ◽  
pp. 11 ◽  
Author(s):  
Abdelhak Mekahlia ◽  
Eric Semail ◽  
Franck Scuiller ◽  
Hussein Zahr
Keyword(s):  
Induction Machine ◽  
Induction Machines ◽  
Reduced Order Model ◽  
Order Model ◽  
Two Phase ◽  
Reduced Order ◽  
Three Phase ◽  
Torque Pulsations ◽  
Sinusoidal Current ◽  
Rotor Cage

For three-phase induction machines supplied by sinusoidal current, it is usual to model the n-bar squirrel-cage by an equivalent two-phase circuit. For a multiphase induction machine which can be supplied with different harmonics of current, the reduced-order model of the rotor must be more carefully chosen in order to predict the pulsations of torque. The proposed analysis allows to avoid a wrong design with non-sinusoidal magnetomotive forces. An analytical approach is proposed and confirmed by Finite-Element modelling at first for a three-phase induction machine and secondly for a five-phase induction machine.

Operation of an induction motor supplied by voltage containing subharmonics

2017 ◽  
Vol 1 (1) ◽  
pp. 27-34 ◽  
Author(s):  
Tomasz Drabek
Keyword(s):  
Induction Motor ◽  
Power Supply ◽  
Induction Machine ◽  
Induction Machines ◽  
Positive Sequence ◽  
Rotor Speed ◽  
Phase Voltage ◽  
Negative Sequence ◽  
Three Phase

The paper discusses the effects of the presence of subharmonics (i.e. frequencies lower than the basic 50 Hz) in the voltage supplying the induction machine. Subharmonics in a three-phase grid are the result of the oscillations of peak values of the voltages. In induction machines, this results in the subharmonic and interharmonic currents, the generation of alternating moments, the increase in the rms value of the current of the fundamental harmonic and the oscillations of the rotor speed. In the paper is derived expression on the thermally acceptable load of the motor (by torque and power), in the case of supplying it by three-phase voltage containing a positive sequence of subharmonics. It presented the obstacles to derive the analogical expression for power supply containing a negative sequence of subharmonics.

Operation and Startup of Three-Phase Grid-Connected PWM Inverter for an Experimental Test Bench With DSPACE Real-Time Implementation of PQ Control

2022 ◽  
pp. 207-232
Author(s):  
Kamal Elyaalaoui ◽  
Moussa Labbadi ◽  
Khalid Chigane ◽  
Mohammed Ouassaid ◽  
Mohamed Cherkaoui
Keyword(s):  
Power Control ◽  
Real Time ◽  
Experimental Test ◽  
Control Strategy ◽  
Test Bench ◽  
Experimental Results ◽  
Electrical Network ◽  
Three Phase ◽  
Grid Connected Inverter ◽  
Experimental Test Bench

The main objective of this chapter is the experimental validation of active and reactive power control at the connection point for a three-phase grid connected inverter. It gives an overview on the adopted vector control strategy, regulation of the angle of orientation of the blades (pitch control), synchronization grid side converter to the power network using phase closed loop (PLL). Once the experimental test bench is described, the authors devote a first part to the design of the block circuit diagram of the experimental platform and the control strategy implemented in the DSPace DS1104, and they suggest some steps to associate the inverter to the electrical network. Subsequently, they discuss the experimental results validating the proposed power control. The purpose of this experimental results is the DSPACE real-time implementation of PQ control using three-phase inverter and development of a startup algorithm of the experimental test bench.

FPGA based real-time model of three-phase induction machine

2018 ◽  
Author(s):  
Roberto Sussumu Inomoto ◽  
Alfeu J. Sguarezi Filho ◽  
Jose A. Torrico Altuna ◽  
Danilo de Carvalho Souza
Keyword(s):  
Real Time ◽  
Induction Machine ◽  
Time Model ◽  
Three Phase

scholarly journals Design of System for Electromechanical Equipment Condition Monitoring in Real-time Based on DSP and CPLD

2015 ◽  
Vol 9 (1) ◽  
pp. 166-169 ◽  
Author(s):  
Gao Lili ◽  
Xu Kebao ◽  
Luan Zhaoxue
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Condition Monitoring ◽  
Time Data ◽  
Logic Control ◽  
Real Time Data ◽  
Electric Equipment ◽  
Electromechanical Equipment ◽  
Parameter Monitoring

A multi-parameter monitoring system has been designed for mechanical and electric equipment based on DSP and CPLD. Designing methods for hardware and software are introduced in this paper. As in the system, powerful capability for numeric operation of DSP is used to deal with real-time data, while CPLD is held responsible for logic control. Therefore, by combining DSP and CPLD, malfunction can be observed and alarming signal can be provided in due time.

scholarly journals Speed Control with Indirect Field Orientation for Low Power Three-Phase Induction Machine with Squirrel Cage Rotor

Machines ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 320
Author(s):  
Robert R. Gomes ◽  
Luiz F. Pugliese ◽  
Waner W. A. G. Silva ◽  
Clodualdo V. Sousa ◽  
Guilherme M. Rezende ◽  
...  
Keyword(s):  
Induction Machine ◽  
Speed Control ◽  
Induction Machines ◽  
Velocity Control ◽  
Field Orientation ◽  
Control Loops ◽  
Squirrel Cage ◽  
Three Phase ◽  
Rotor Flux ◽  
Cage Rotor

Induction machines are widely used in the industry due to their many advantages compared to other industrial machines. This article presents the study and implementation of speed control applied to a Three-phase Induction Machine (MIT) of the squirrel cage type. The induction motor was modeled using the rotor flux in the synchronous reference to design Proportional-Integral (PI) type controllers for the current and velocity control loops. It is the objective of the article also to present in detail the development of converter hardware that comprises the stages of power, acquisition, and conditioning of engine signals. The system was simulated using computational tools and validated using a prototype designed, constructed, and commissioned.

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