Skuteczne wykrywanie ekscentryczności dynamicznej w silniku asynchronicznym

• Autorzy: Weinreb K. , Sułowicz M.

Warianty tytułu

EN

Effective detecting of the dynamic eccentricity in asynchronous motor

• Języki publikacji: PL

Abstrakty

EN

In the article a detection method will be analysed, which improves detection efficiency and assessment of dynamic eccentricity level. The method based on the analysis and selection of the characteristic features for stator current spectrum, which take the components related to the third harmonic current into consideration. Generally accepted assessment methods of variety faults are based on current spectrum analysis (mostly close to fundamental harmonic), with the assumption of sinusoidal voltage supplying and linear magnetic circuit. In case of simultaneous variety faults, the spectrum changes are often ambiguous. For example, the dynamic eccentricity and cage damage result in spectrum by appearing the harmonic with the same frequency. The assessment efficiency can be increased by broaden the harmonic components set, especially these, which are changing under the third harmonic component of stator current. Based on the measurements of low voltage motor, analysis results for different faults will be presented. The spectrum features caused by third harmonic stator current, which are unambiguously the evidence of a particular rotor fault, will be indicated.

Słowa kluczowe

PL

silnik elektryczny; silnik asynchroniczny klatkowy; ekscentryczność dynamiczna; diagnostyka

• Wydawca: Sieć Badawcza Łukasiewicz - Górnośląski Instytut Technologiczny
• Czasopismo: Maszyny Elektryczne : zeszyty problemowe
• Rocznik: 2009
• Tom: Nr 83
• Strony: 207--212
• Opis fizyczny: Bibliogr. 5 poz., rys., tab.

Twórcy

autor

Weinreb K.

autor

Sułowicz M.

• Politechnika Krakowska, Wydział Inżynierii Elektrycznej i Komputerowej, Instytut Elektromechanicznych Przemian Energii, Katedra Maszyn Elektrycznych ul. Warszawska 24, 31-155 Kraków,

Bibliografia

• [1] Weinreb K., Węgiel T., Sułowicz M.: Influence of the Main Magnetic Circuit Saturation on Stator Current Spectrum for a Cage Induction Motor with Rotor Asymmetry. Czasopismo Techniczne, Z.3-E/2006, PK Kraków, pp. 65-76
• [2] Elawgali S.: Effect of Eccentricities and Cage Asymmetry on Induction Machine Currents, Considering Deformation of Supply Voltages. Proc. of the ICEM’2004, Cracow, Poland, 5-8.09.2004, pp. 443-448
• [3] Sobczyk T., Weinreb K., Sułowicz M., Węgiel T., Warzecha A.: Effects in Stator Currents of Cage Motors Due to Saturation of Main Magnetic Circuit. Proc. of the SDEMPED’2003, Atlanta. GA, USA. 24-26.08.2003, pp. 81-86
• [4] Weinreb K.: Обнаружение динамического эксцентриситета и обрыва стержней клетки в асинхронном двигателе методом спектрального анализа тока статора. Научно-технические ведомости СПбГПУ. Основной выпуск. №1(53)2008, pp. 119-126
• [5] Bellini A., Filippetti F., Tassoni C., Capolino G.-A.: Advances in Diagnostic Techniques for Induction Machines. IEEE Transactions on Industrial Electronics, Vol. 55, No. 12, Dec. 2008, pp. 4109-4126