ATP simulation of switching transients in ASD systems including cable modeling and algorithm for damping overvoltage problems

ECANO; OSCAR TRAD; GRATTA

Budapest

Congreso; IPST1999; 1999

International Conference on Power Systems Transients

This paper describes methods used to analyze and solve problems associated with Adjustable Speed Drives (ASD). Overvoltage mitigation techniques are evaluated. The complete system, including power cables and induction motor is simulated using the ATP version of the Electromagnetic Transient Program (EMTP). A new method to reduce overvoltages, due to switching of the IGBT and cable reflections, is proposed. Comparisons between the new method and other traditional methods, likes filtering, are included.