Abstract
In this paper, the basics of dynamic phasor (DP) modelling has been introduced by employing a simple RL-series circuit. In the example, the actual time-domain simulation and the DP-based simulation are presented in addition to the eigenvalue analysis of the RL-circuit in the DP-domain. With this introduction, following a systematic procedure, the DP-model of a static VAr compensator (SVC) which involves periodic switchings, is derived. To verify this model, a case study with an SVC in the IEEE first benchmark system for subsynchronous resonance (SSR) study has been simulated. The simulation results are also compared with those obtained using a susceptance model for SVC. A PSCAD/EMTDC-based detailed simulation demonstrated that the DP-model offers good-enough accuracy with much less computational effort.
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