A new method to diagnose rotor faults in 3-phase induction motors coupled to time-varying loads

نویسندگان

  • Sérgio CRUZ
  • Flávio GASPAR
چکیده

This paper proposes a new method, based on the analysis of the active and reactive powers of the induction motor, for the diagnosis of rotor faults in motors coupled to time-varying loads. This new method is able to discriminate the presence of a true rotor fault from a time-varying load and can be used even when both the fault and the load torque variation coexist. A theoretical analysis complemented with experimental results support the effectiveness of this new diagnostic approach for the detection of rotor faults in operating three-phase induction motors. Streszczenie. Zaproponowano nową metodę diagnozowania uszkodzeń wirnika bazującą na analizie mocy czynnej i biernej przy zmieniającym się obciążeniu. Wyniki eksperymentu poparte analizą teoretyczną potwierdziły skuteczność tej metody. (Nowa metoda diagnostyki uszkodzeń wirnika indukcyjnego silnika trójfazowego dołączonego do zmiennego obciążenia)

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Magnetic Saturation Impacts on Fault Analysis of Squirrel-cage Six Phases Induction Motors using Winding Function Approach

Multiple coupled circuit modeling (MCCM) of squirrel-cage induction motors (SCIMs), or winding function approach is the most detailed and complete analytical model used to analyze the performance of faulty SCIMs. Already, in variate papers this approach was used to 3phases SCIMs, but this paper extends the above-mentioned model to 6phases SCIMs. Various simulations of variative faults are carri...

متن کامل

The Detection of Broken Rotor Bars in Squirrel Cage Induction Motors Based on Neural Network Approach

The detection of broken rotor bars in three-phase squirrel cage induction motors by means of current signature analysis is presented. In order to diagnose faults, a Neural Network approach is used. At first the data of different rotor faults are achieved. The effects of different rotor faults on current spectrum, in comparison with other fault conditions, are investigated via calculating Power ...

متن کامل

Tuning of fuzzy controller coefficients in direct torque control with space vector modulator for the three phase induction motors drive using Metaheuristic algorithms with considering electrical faults.

Among all the drive control methods of induction motors, the Direct Torque Control (DTC) method operates independently of the rotor parameters of the machine and, despite its simplicity, provides good torque control in both stable and transient modes. The use of residual comparators in these drives reduces the torque ripple and variable switching frequency. The most common solution is the use o...

متن کامل

Improvement of Electromagnetic Forces in a Single-Phase Induction Motor by Providing a New Winding Distribution

Single-phase induction motors have a wide range of domestic and industrial applications. These motors have a squirrel cage rotor and their stator usually has two windings: main and auxiliary. The use of auxiliary winding in the structure of single-phase induction motors creates two unbalance and asymmetric phases. This causes to increase the spatial harmonics of the field in the air gap, and al...

متن کامل

Neural-Network-Aided On-line Diagnosis of Broken Bars inInduction Motors

This paper presents a method based on neural networks to detect broken rotor bars and end rings in squirrel cage induction motors. In the first part, detection methods are reviewed and traditional methods of fault detection as well as dynamic model of induction motors are introduced using the winding function method. In this method, all stator and rotor bars are considered independently in ord...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011