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Pioneering efforts in showing how electricity energy storage can be a valuable asset in a Smart Grid Distribution System have been in process for the last few years. Several demonstration projects were completed to show how substation loading could be controlled and managed to delay upgrades. The next step was to show how the load deferral benefit could be combined with distribution circuit automation...
Distribution Systems traditionally have a tree-like structure with several branches. They supply loads that vary through the day and as a result, some branches are loaded more than others are. By reconfiguring the system, loads from the overloaded branches may be moved to under-loaded branches. Consequently, loads in the branches can be balanced so that the real power losses are reduced and the voltage...
This paper presents real time test results arising from the application of a case based reasoning technique for voltage control of a section of existing UK 11kV network. The test network includes two distributed generation schemes. The objective of the case based reasoning technique is to maintain voltages within statutory limits while also maximizing the DG access to the network. The control algorithm...
The Smart Grid is not just advanced metering. Electric distribution feeders that are equipped with Advanced Distribution Automation (ADA) can make a significant contribution to accomplishing the overall Smart Grid characteristics as defined by the Modern Grid Initiative. In particular, ADA will enable the distribution feeders to be self-healing and more efficient, and will also facilitate the implementation...
This paper summarizes the history of volt/VAR control at Progress Energy Carolinas (PES) for the transmission to distribution and distribution systems. PEC has transitioned from a volt/VAR control system that incorporated local control of capacitors and regulators to an automated system that provides remote control of feeder capacitor banks. Currently PEC is implementing a Distribution System Demand...
This paper summarizes the history of Distribution Automation (DA) at Progress Energy Carolinas (PEC). PEC's first introduction into DA occurred in 1997 with the installation of a DSCADA and Feeder Monitoring System. In addition to these systems, PEC also implemented a capacitor control program for distribution feeder capacitor banks. Currently PEC is implementing a Distribution System Demand Response...
The Smart Grid concept is conceived as a means to optimize and to improve the reliability of the electric delivery system. The numerous and different types of information generated at the remote sites at a distribution network by sensors and smart meters coupled with a communication infrastructure and data base management system provide the means to generate useful control algorithms. However, control...
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