Electricity distribution networks have been supplying power to customers with very few
changes in configuration and operation methods. In the recent years however, due to the
addition of local generation on the power distribution system, the network configuration
and operation has changed significantly leading to a new concept called active
networks. Operation of a simple ring type active distribution network is studied in this
project with emphasis on demand side management and active voltage control in view
of possible energy conservation and related environmental benefits. A usual mix of
loads is assumed on the ring main. A controller is programmed and implemented to
execute load switching based on predictions of load curves and embedded generation
profiles. In addition, a voltage control program by on-load tap change control of the
primary distribution transformer is implemented. Simulations are carried out on a real
time digital simulator (RTDS) to study the network performance with the controller.
Results are analysed to discuss the various issues regarding active network management
(ANM) in context of the overall energy consumption, savings and the related
environmental issues. Some issues with power generation companies, distribution
network operators (DNO) and the customers with regard to ANM are also observed.