Calculation of Winding Inductances via Magnetic Vector Potential, Discrete Convolution and Fast Fourier Transform
109 113 86 5 ; S ; [EN] Fault analysis of induction motors with broken bars or inter-turn short circuits needs accurate machine models to correctly identify and quantify the magnitude of the fault. Winding inductances and their derivatives are a key component of these models. In this paper a new, very easy and extremely fast method to compute them, based on the Magnetic Vector Potential (MVP), the Discrete Circular Convolution and the Fast Fourier Transform (FFT), is presented. This work was supported by the European Community's Seventh Framework Program FP7/2007-2013 under Grant Agreement 224233 (Research Project PRODI "Power Plant Robustification based on Fault Detection and Isolation Algorithms") Pineda-Sánchez, M.; Roger-Folch, J.; Pérez-Cruz, J.; Riera-Guasp, M.; Puche-Panadero, R.; Antonino-Daviu, J.; Pons Llinares, J. (2010). Calculation of Winding Inductances via Magnetic Vector Potential, Discrete Convolution and Fast Fourier Transform. Przegląd Elektrotechniczny. 86(5):109-113. http://hdl.handle.net/10251/103509 ; [Otro] Przedstawiono analiz¿ uszkodze¿ silnika indukcyjnego spowodowanych z¿amaniem pr¿tu, lub zwarciem wewn¿trznym. Oszacowano amplitud¿ wynikaj¿c¿ z uszkodzenia. Induktancja uzwoje¿ jest kluczowa w tym modelu. Zaproponowana metoda jest bardzo prosta i szybka. Zastosowano wektorowy potencja¿ magnetyczny oraz szybk¿ transformat¿ Fouriera.
