Title :
A three phase model for transient overvoltage studies on electrical machines during sequential pole closure
Author :
Guardado, J.L. ; Venegas, V. ; Melgoza, E. ; Cornick, K.J.
Author_Institution :
ITM, Morelia, Mexico
Abstract :
This paper addresses the problem of transient overvoltages in electrical machines during sequential pole closure on industrial installations. A three-phase computer model that includes the circuit breaker, high-voltage cable and electrical machine 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 basic mechanism of sequential pole closure is analyzed including the case when parallel capacitors are connected. Finally, a sensitivity analysis on the effect of several system and machine parameters on the dielectric stresses during sequential pole closure is presented.
Keywords :
Fourier transforms; circuit breakers; electric machine analysis computing; electric machines; industrial power systems; machine theory; modal analysis; overvoltage; power cables; power system transients; sensitivity analysis; transmission line theory; circuit breaker; computer simulation; dielectric stresses; electrical machines; high-voltage cable; industrial installations; modal analysis; multiconductor transmission line theory; parallel capacitors; piecewise Fourier transform; sensitivity analysis; sequential pole closure; three-phase model; transient overvoltage studies; Analytical models; Circuit breakers; Circuit simulation; Computational modeling; Fourier transforms; Modal analysis; Multiconductor transmission lines; Power cables; Power system transients; Voltage control;
Conference_Titel :
Industry Applications Conference, 1998. Thirty-Third IAS Annual Meeting. The 1998 IEEE
Conference_Location :
St. Louis, MO, USA
Print_ISBN :
0-7803-4943-1
DOI :
10.1109/IAS.1998.730134
