Title :
Transient overvoltages in electrical motors during sequential pole closure
Author :
Guardado, J.L. ; Venegas, V. ; Melgoza, E. ; Cornick, K.J. ; Naredo, J.L.
Author_Institution :
ITM, Morelia, Mexico
fDate :
12/1/1999 12:00:00 AM
Abstract :
This paper addresses the problem of transient overvoltages in electrical motors during sequential pole closure in industrial installations. A computer model that includes the circuit breaker, high-voltage cable and electrical motor is proposed. Multiconductor transmission line theory and modal analysis are applied to the components and the piecewise Fourier transform is used to simulate sequential pole closure. The mechanism of sequential pole closure is analyzed including parallel capacitors and series inductors. Critical times for switching transients are calculated. Finally, the effect of several system and machine parameters on transient overvoltages is investigated
Keywords :
Fourier analysis; electric machine analysis computing; electric motors; overvoltage; sensitivity analysis; switching transients; transient analysis; transmission line theory; circuit breaker; computer model; electrical motors; high voltage electrical motor; high-voltage cable; modal analysis; multiconductor transmission line theory; parallel capacitors; piecewise Fourier transform; sensitivity analysis; sequential pole closure; series inductors; switching transients; transient overvoltages; Analytical models; Circuit breakers; Circuit simulation; Computational modeling; Fourier transforms; Modal analysis; Multiconductor transmission lines; Power cables; Power system transients; Surges;
Journal_Title :
Energy Conversion, IEEE Transactions on
