Method and device for monitoring an energy feed-in point of an energy supply network

Abstract

The invention describes a method for monitoring an energy feed-in point (ESP) of an energy supply network (EVN), particularly in the low voltage range, a number of first and second nodes (K11, K12, K13, K2) being connected or connectable to the energy feed-in point, the respective nodes (K11, K12, K13, K2) being an energy producer, an energy consumer or a prosumer. In the method according to the invention, an actual current which represents the current consumption or current output is detected at the energy feed-in point (ESP) by a measuring and monitoring device. A piece of current information (SI) received from one of the first nodes (K11, K12, K13), which represents an intended and / or a maximum possible current consumption or output of the first node (K11, K12, K13), is processed by checking whether a current value in the piece of current information (SI) fulfils a predetermined criterion in respect of a possible current value (MW) of the energy feed-in point (ESP). The possible current value (MW) is determined by a differential formed from the predetermined maximum current of the energy feed-in point (ESP) and the actual current. Finally, depending on whether the criterion at the first node (K11, K12, K13) is fulfilled or not, a message is transferred which confirms or denies the current consumption or output to the first node (K11, K12, K13).

Description

technical field [0001] The invention relates to a method and a device for monitoring an energy feed-in point of an energy supply network, especially in the low-voltage range. A plurality of first and second nodes are connected or can be connected to the energy feed point, wherein the respective nodes are energy generators, energy consumers or dissipators. Background technique [0002] In this description, a first node is a node which has a communication mechanism and can communicate with a device implementing the method. The second node is a node which does not have a communication mechanism and is therefore also not able to communicate with the device implementing the method. [0003] A disproducer is understood to be a component which can both generate energy and feed energy into the energy supply network, and can consume energy and absorb energy from the energy supply network. An example of this is, for example, an electrically operated motor vehicle which draws energy ...

AI Technical Summary

Problems solved by technology

This proves to be difficult if the monitoring devices and / or nodes at the feed-in points are in the range of different operators

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