Modelling and simulation of an advanced static VAr compensator using SABER

The need for fast and reliable VAr compensators has never been more urgent. VAr compensators have advanced from switched capacitors to advanced static VAr compensators (ASVCs). However, the dynamics of the devices themselves as well as their dynamic interaction with the system are little understood. SABER provides a complete solution to the problem of modelling and simulation of such devices. Behavioural modelling through the SABER language, MAST, enables the accurate representation of the ASVC and the system it is designed to improve. Furthermore, the use of special SABER small signal AC routines has also made possible the design of an ASVC controller based on a linearised model. Finally, time domain analysis was used to provide the responses of the integral ASVC solution to a number load conditions. The overall work can be used as a reference for the design and operation of ASVCs serving in similar or other environments. Hence a generic MAST ASVC model can be developed.