Rozkład pola magnetycznego i charakterystyki dynamiczne silnika indukcyjnego z uszkodzonym jednym prętem klatki wirnika

• Autorzy: Zawilak J. , Antal M.

Warianty tytułu

EN

Magnetic field distribution and transient characteristics of an induction motor with broken a single rotor bar

• Konferencja: Problemy eksploatacji maszyn i napędów elektrycznych (2003; Ustroń, Polska)
• Języki publikacji: PL

Abstrakty

EN

This paper includes the stationary and the transient characteristics of torque and current as well as the field distribution in air gap of low power induction motor (squirrel-cage motor) with deep slots winding. These characteristics and filed distribution were determined for aforementioned motor with a failure of single bar in rotor cage. On the basis of the stationary characteristics there was carried out the harmonic analysis of the magnetic field during both the rated load for stationary state (s=0,06) and the stationary short-circuit (s=1). On the basis of the transient characteristics there was carried out the harmonic analysis of the armature currents during both start-up and steady state. These stationary and transient characteristics were calculated by means of the circuit-field model of induction motor, which took into consideration the following things: connection of the end part, shorted rings of rotor, air gap, nonlinearity of magnetic circuit, symmetric system of voltage feed. The same computations were made for the induction motor without failure in order to compare the obtained results together. This comparison makes it possible to estimate the diagnosis meaning of modifi cation of the various physical parameters of induction motor (induction of magnetic field, electromagnetic moment, speed of rotation, currents of stator winding and rotor bars). These modifications can be effect of not large serious failures as well as the technology errors. Computed modifications of both current values and phases for each bar of damaged rotor make possible to predict the damage progress of induction motor during further work.

Słowa kluczowe

PL

pole magnetyczne; silniki indukcyjne; uszkodzenia wirnika; wirnik

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2003
• Tom: Nr 65
• Strony: 117--122
• Opis fizyczny: Bibliogr. 8 poz., tab., rys.

Twórcy

autor

Zawilak J.

• Instytut Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej

autor

Antal M.

• Instytut Maszyn, Napędów i Pomiarów Elektrycznych Politechniki Wrocławskiej

Bibliografia

• [1] Singh G. K., Sa'ad Ahmed Saleh Al Kazzaz: Induction machine drive condition monitoring and diagnostic research - a survey, Electric Power Systems Research, nr 64, 2003, s. 145-158.
• [2] Devanneaux V., Kabbaj H., Dagues B., Faucher J.: An accurate model of squirrel cage induction machines under rotor faults, ICEMS'2001 Proceedings of the Fifth International Conference on Electrical Machines and Systems, 2001, Beijing, China, vol. 1, s. 384-387.
• [3] Linzheng Zhang, Tak Son Cheang: Two new approaches to analysis of inner-fault of squirrel-cage rotor for three-phase induction motors, ICEMS'2001. Proceedings of the Fifth International Conference on Electrical Machines and Systems, 2001, Beijing, China, vol. 1, s. 51-55.
• [4] Liang B., Payne B. S., Ball A. D., Iwnicki S. D.: Simulation and fault detection of three-phase induction motors, Mathematics and Computers in Simulation, nr 61, 2002, s. 1-15.
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• [6] Fiser R., Ferkolj S.: Modelling of failure states of induction machines, MELECON'96 8th Mediterranean Electrotechnical Conference, Industrial Applications in Power Systems, Computer Science and Telecommunications, 1996, Bari, Italy, vol. 3, s. 1195-1198.
• [7] Cedrat - Recherche, Flux 2D User Guide, 1999.
• [8] Cedrat - Recherche, Flux2d Version 7.40 Induction Machine Tutorial.