Modelling of custom power devices on an electromagnetic transients program

Abstract

Custom Power Devices comprise a group of power electronic controllers that seek to improve the level f quality of power available to the customer. Novel configurations using semiconductor switching devices can be designed to mitigate power quality problems such as voltage sags, harmonics and voltage flicker in distribution systems. This thesis deals with the modelling of Custom Power topologies in the electromagnetic transient simulation programme PSCAD/EMTDC$\sp{\rm TM}.$ Several configurations of Solid State Breakers and Dynamic Voltage Restorers have been studied and their control logic designed, using this simulation cool. The results of various tests have been enumerated in this thesis and it is shown that dynamic power electronic controllers can be designed to provide high quality of power to sensitive loads. These Custom Power models can now be used for detailed system studies at the distribution level.