Active Voltage Level Management of Distribution Networks with Distributed Generation using On Load Tap Changing Transformers

In this paper, time domain performance of active voltage level management based on co-ordinated control of substation voltage is studied. A control algorithm that controls the set point of the automatic voltage control (AVC) relay at the substation is proposed and its operation in an example network is tested using PSCAD simulations. The study network is a real distribution network located in south-west Finland which will experience voltage rise problems if a planned wind park is constructed.