A unified approach to power system security assessment and contingency analysis suitable for on-line applications is proposed. The severity of the contingency is measured by two scalar Performance Indices (PIs): Voltage-reactive power performance index, PIVQ and line MVA performance index, PIMVA. In this paper, a two stage cascade neural network is developed: Stage I employs Multi-Layer Percept...

Power system cyber security demand is escalating with the increased number of security incidents and the increased stakeholder participation in power system operations, specifically consumers. Rule-based cyber security is proposed for Distributed Network Protocol (DNP3) outstation devices, with a focus on smart distribution system devices. The security utilizes the DNP3 application layer functi...