The operation of an electrical power system involves continuous electromechanical and electromagnetic distribution of energy among the system components. During normal operation, under constant load and topology, these energy exchanges are not modelled explicitly and the system behaviour can be represented by voltage and current phasors in the frequency domain. However, following switching events and system disturbances the energy exchanges subject the circuit components to higher stresses, resulting from exces sive currents or voltage variations, the prediction of which is the main objective of power system transient simulation.

Inspec keywords: power distribution protection; electromagnetic fields; power system transients; frequency-domain analysis

Other keywords: voltage phasors; continuous electromechanical distribution; current phasors; frequency domain; electrical power system; power system transient simulation; system disturbances; electromagnetic distribution; constant topology; normal operation; constant load

Subjects: Power system protection