Abstract: The disclosure relates to a method for monitoring an electricity supply grid, wherein the electricity supply grid has a grid frequency and a grid topology with a plurality of grid nodes, a plurality of converter-controlled infeed units are each connected to the electricity supply grid via a grid connection point, and the grid connection points are distributed over the grid topology, comprising the steps of acquiring in each case at least one node voltage at the grid connection point or at a grid node, assigned to the grid connection point, of the plurality of grid nodes, such that a plurality of node voltages are acquired, wherein each grid connection point or grid node is assigned a location in the grid topology, which is referred to as node location, and the acquired node voltage is characterized by a node phase angle as phase angle of the node voltage, assigning an associated node location to each node voltage, and ascertaining grid statuses distributed over the grid topology from the acquired node voltage

Abstract: A method for planning a power exchange between a charging infrastructure and an electricity supply grid. The infrastructure has a plurality of terminals for connecting and charging electric vehicles such that the electric vehicles can exchange power with the grid via the terminals. Each electric vehicle has an electrical storage unit with a variable individual state of charge for drawing and outputting power, and all of the storage units connected to the infrastructure form an overall storage unit of the infrastructure, which overall storage unit is characterized by a total storage capacity and a total state of charge that are variable. The prediction of arrival times of the vehicles at the terminals thereof is created, and a total state of charge prediction is created for a prediction period depending on the prediction of the arrival times, wherein the total state of charge prediction is created as a time profile.

Abstract: The disclosure relates to a method for monitoring an electricity supply grid, wherein the electricity supply grid has a grid frequency and a grid topology with a plurality of grid nodes, a plurality of converter-controlled infeed units are each connected to the electricity supply grid via a grid connection point, and the grid connection points are distributed over the grid topology, comprising the steps of acquiring in each case at least one node voltage at the grid connection point or at a grid node, assigned to the grid connection point, of the plurality of grid nodes, such that a plurality of node voltages are acquired, wherein each grid connection point or grid node is assigned a location in the grid topology, which is referred to as node location, and the acquired node voltage is characterized by a node phase angle as phase angle of the node voltage, assigning an associated node location to each node voltage, and ascertaining grid statuses distributed over the grid topology from the acquired node voltage

Abstract: A method for planning a power exchange between a charging infrastructure and an electricity supply grid. The infrastructure has a plurality of terminals for connecting and charging electric vehicles such that the electric vehicles can exchange power with the grid via the terminals. Each electric vehicle has an electrical storage unit with a variable individual state of charge for drawing and outputting power, and all of the storage units connected to the infrastructure form an overall storage unit of the infrastructure, which overall storage unit is characterized by a total storage capacity and a total state of charge that are variable. The prediction of arrival times of the vehicles at the terminals thereof is created, and a total state of charge prediction is created for a prediction period depending on the prediction of the arrival times, wherein the total state of charge prediction is created as a time profile.