Schneider Electric’s Energy Management System includes a transmission network model, integrated with the distribution model and operated optionally within a single security zone/control room. EMS state estimation is a realtime network function for assessing the state of the network based on realtime measurements. This function calculates state variables including voltages and power flows, which can be used as inputs for DMS distribution state estimation. Power flow is an EMS network function for what-if analysis of power flows in various scenarios, such as changes to network topology, production, and consumption. Performance indices calculates various indices of generation and transmission network operation. Fault calculation provides calculation of short circuits in transmission networks, as well as calculation of capacity of associated circuit breakers to interrupt resulting fault currents. Contingency analysis provides what-if analysis of outages of lines and transformers, identifying critical outages, and runs periodically in realtime or on-demand and informs the operator when a larger outage or system blackout is predicted to occur as a result of a failure.
EMS integrates with Electric SCADA for realtime monitoring and control, and weather systems for accurate weather forecasting of temperature, cloud cover, wind speed, and humidity.