The operating strategies presented can also be applied in particular to further components of a multimodal energy system. In this case, there are in particular the following arrangements: electricity procurement unit+store+load. Alternatively cogeneration of electricity and a further form of energy, store+load in the further form of energy.

Overall, the different operating strategies of the electrical device presented enable the establishment of the possibility for offers in the case of heat pumps and combined heat and power plants with energy stores on the local energy market. There is a utilization of the high flexibility potential in the thermal “sector”. In this case, it is possible to realize a cost saving for the individual participant. Furthermore, an improved resource utilization of renewable energies can be realized, as a result of which for example storage in an energy store of a different participant can be realized. Furthermore, it is possible to realize a minimization of the risk for the individual participant on the local energy market. Furthermore, it is possible to establish an individual choice of the trade-off between risk and performance.

In some embodiments, there is a computer program which is loadable directly into a memory of an electronic computing device of a magnetic resonance apparatus, comprising program means for carrying out the steps of the methods described herein when the program is executed in the electronic computing device of the magnetic resonance apparatus.

In some embodiments, there is an electronically readable data carrier with electronically readable control information which is stored thereon and which comprises at least one computer program as described herein and is configured in such a way that it carries out a method as described herein when the data carrier is used in an electronic computing device of a magnetic resonance apparatus.

In some embodiments, there is a network management system for a local energy network, comprising at least one electronic computing device, wherein the network management system is designed for carrying out a method as described herein. In particular, the method is carried out by means of the network management system.

Various configurations of the method should be regarded as analogous configurations of the computer program, of the electronically readable data carrier and of the network management system. In this case, the network management system has substantive features which enable the method or any analogous configuration thereof to be carried out.

Further features of the teachings herein are evident from the claims, the figures, and the description of the figures. The features and feature combinations mentioned above in the description and the features and feature combinations mentioned below in the description of the figures and/or shown solely in the figures are usable not only in the combination respectively indicated, but also in other combinations, without departing from the scope of the disclosure.

The FIGURE shows a block diagram of a local energy network 10 with an embodiment of a network management system 12 in a schematic view. The network management system 12 comprises at least one electronic computing device 14.

The local energy network 10 comprises an electrical device 16, the electrical device 16 comprising an energy store 18. In particular, the local energy network 10 can comprise a renewable energy source 20 and a superordinate network connection 22. The superordinate network connection 22 can be connected to a public network, for example, whereby electrical energy can be procured for the local energy network 10.

In an example method for operating the network management system for the local energy network 10, at least one operating strategy 24, 26, 28, 30, 32, 34 for an energy store 18 of the electrical device 16 of the local energy network 10 is determined depending on a decision criterion by means of an electronic computing device 14 of the network management system 12.

In some embodiments, a flexible storage strategy for storing energy in the energy store 18 is selected as the operating strategy 24, 26, 28, 30, 32, 34 by means of the electronic computing device 14, the storage strategy being determined depending on a predefined flexibility criterion of the electrical device 16 as the decision criterion.

In the following embodiment, the energy store 18 is designed in particular as a thermal energy store 18 and is designed in particular for storing thermal energy. The electrical device 16 can be for example a heat pump or a compression refrigeration machine. In some embodiments, the electrical device 16 can also be designed as a combined heat and power plant.

In particular, the FIG. shows that one operating strategy 24, 26, 28, 30, 32, 34 is selected from a multiplicity of operating strategies 24, 26, 28, 30, 32, 34 for the energy store 18 by means of the electronic computing device 14. In some embodiments, temporal shifting for consumption of the energy or for utilization of the energy within a predefined time interval is determined in the case of the predefined flexibility criterion.

A description is given below of, in particular, a corresponding operating strategy 24, 26, 28, 30, 32, 34 which can be carried out in particular for an electrical device 18 designed as a heat pump or as a compression refrigeration machine. In some embodiments, in the case of the heat pump or the compression refrigeration machine, depending on the storage strategy, electrical energy for generating energy for the energy store 18 is generated by the heat pump or the compression refrigeration machine by means of electrical energy uptake from the local energy network 10. In other words, the heat pump utilizes electricity to generate heat. The energy store 18 in the thermal circuit flexibilizes the possible operation of the heat pump in order to cover the thermal load. In particular, the operating strategy is designed for a so-called day ahead strategy, which describes in particular the electricity utilization for the following day.

In the case of a first operating strategy, the storage strategy can be determined in such a way that the energy store 18 has an energy value which is below an overcharging threshold value for the energy store 18 or above an undercharging threshold value for the energy store 18. In particular, this operating strategy 24, 26, 28, 30, 32, 34 can also be referred to as a “conservative operating strategy” 24. The least possible flexibility is offered in the case of the conservative operating strategy 24. In this case, the thermal load of each time interval, fixedly converted by the so-called COP (coefficient of performance) of the heat pump, is transferred to the local electricity market or the local energy network 10. What can be realized as a result is that the thermal load for each time interval can be covered and the energy store 18 is not in an undercharged or overcharged state.

Supplementarily, what can be regarded as a “conservative plus operating strategy” 26 is that in addition to the fixed thermal load, the energy store