BBN-based approach for assessment of Smart Grid and nuclear power plant interaction

The Smart Grid is a movement to bring the electrical power grid up to date so it can meet the current and future requirement so fits customers. Nuclear power plant is a part of smart grid generation system. The problem of safe interaction between nuclear power plant and power grid considering the Fukushima nuclear accident is becoming topical. Despite of undoubted benefits of smart grid for industrial and private customers smart grid technologies bring new risks for NPP. Smart grid security and reliability become new important issues for safety evaluation. Smart grid substations which provide power supply for NPP play can significantly determine NPP safety. A new class of safety critical substation with a critical load should be considered. The smart grid and safety critical smart grid substation (CSGS) mutual influences are evaluated with Bayesian Belief Network (BBN) where nodes represent different CSGS and NPP, links are caused by different types of influences.