METHOD AND SYSTEM FOR MONITORING THE OPERATING STATE OF HIGH-VOLTAGE DEVICES OF AN ENERGY SUPPLY NETWORK

Abstract

A method for monitoring the operating state of high-voltage devices of an energy supply network includes using sensors on or in the high-voltage devices to capture measured values. The measured values or values derived therefrom are transmitted to communication units via short-range communication connection. Access data are transmitted to a data processing cloud at a query time. The data processing cloud selects communication units dependent on the access data and connects to selected communication units via long-range communication connection. The measured values and/or values derived therefrom are transmitted from the selected communication units to the data processing cloud via the long-range connection. The data processing cloud uses the measured values and/or values derived therefrom for generating a visualization displaying the operating state of the high-voltage devices connected to at least one of the selected communication units via the short-range connection.

Claims

1-15. (canceled)

16. A method for monitoring an operating state of high-voltage devices of an energy supply network, the method comprising: using sensors disposed on or in the high-voltage devices to capture measured values; transmitting the measured values or values derived from the measured values to communication units over a short-range communication connection; transmitting access data to a data processing cloud at a query time; using the data processing cloud to select a number of the communication units being dependent on the access data and to connect to the selected communication units over a long-range communication connection; transmitting at least one of the measured values or the values derived from the measured values from the selected communication units to the data processing cloud over the long-range communication connection; and using the data processing cloud to take at least one of the measured values or the values derived from the measured values as a basis for generating a visualization displaying the operating state of the high-voltage devices connected to at least one of the selected communication units over the short-range communication connection.

17. The method according to claim 16, which further comprises using, in the visualization, at least one of the measured values or the values derived from the measured values having been captured or derived before the query time.

18. The method according to claim 17, which further comprises storing, in a memory unit of the communication unit, at least one of the measured values captured before the query time or the values derived from the measured values.

19. The method according to claim 17, which further comprises storing, in a memory of the data processing cloud, at least one of the measured values captured before the query time or the values derived from the measured values.

20. The method according to claim 16, which further comprises using a quotient of a load current to a nominal current based on a respective high-voltage device, to aid in generating the visualization.

21. The method according to claim 16, which further comprises displaying at least one of the measured values occurring before the query time in terms of time or the values derived from the measured values, in a graph in a manner correlated with data not being derived from the measured values from the sensors.

22. The method according to claim 16, which further comprises displaying in the visualization a map on which the high-voltage devices connected to the selected communication units are schematically illustrated.

23. The method according to claim 16, which further comprises generating a prediction of a further progression of a utilization and service life of the high-voltage devices based on at least one of the measured values captured before the query time or values derived from the measured values, and displaying the prediction in the visualization.

24. The method according to claim 16, which further comprises using a position determination antenna disposed in a communication unit to determine a geographical location of the respective communication unit and of the high-voltage device connected to the respective communication unit, and then capturing weather data provided by a service provider for the geographical location of the high-voltage device by using a weather message service.

25. A system for observing an operating state of high-voltage devices of an energy supply network, the system comprising: sensors disposed on or in a high-voltage device and configured to capture measured values, at least one of the measured values or values derived from the measured values indicating the operating state of the high-voltage device; communication units; a short-range communication connection connecting said communication units to at least one of said sensors; a data processing cloud; a long-range communication connection configured to connect said data processing cloud to said communication units; a user unit configured to be connected to said data processing cloud with an indication of access data; said data processing cloud connected to selected communication units based on the access data and configured to take at least one of the measured values or the values derived from the measured values as a basis for providing a visualization displaying the operating state of the high-voltage devices connected to at least one of said selected communication units.

26. The system according to claim 25, wherein said data processing cloud has a memory unit storing at least one of measured values or values derived from the measured values being transmitted from said communication units over said long-range communication connection.

27. The system according to claim 25, wherein each communication unit has a memory unit storing at least one of measured values or values derived from the measured values, and at least one of measured values occurring before a query time in terms of time or values derived from the measured values being transmitted to said data processing cloud at the query time.

28. The system according to claim 25, wherein each communication unit is equipped with a position determination antenna.

29. A non-transitory computer program product, comprising instructions stored thereon, that when executed on a processor, perform the steps of claim 16.

30. A non-transitory computer-readable medium storing a computer program according to claim 29.

Description

[0040] The following description of exemplary embodiments of the invention with reference to the figures of the drawing relates to further expedient configurations and advantages of the invention, wherein identical reference signs refer to identically acting components, and wherein

[0041] FIG. 1 schematically illustrates an exemplary embodiment of the method according to the invention and of the system according to the invention, and

[0042] FIG. 2 schematically illustrates a further exemplary embodiment of the method according to the invention and of the system according to the invention.

[0043] FIG. 1 shows an exemplary embodiment of the method 1 according to the invention, in which it is possible to see a data processing cloud 2 which is connected, via a long-range communication connection 3, to communication units 4 which are each fastened on or in the vicinity of a high-voltage device 5. In the exemplary embodiment illustrated, the high-voltage devices 5 are a transformer which is schematically shown with its column-like bushings, a high-voltage circuit breaker 7 and a capacitor battery 8. It is also possible to see a user unit in the form of a laptop 10 which is used by the user to transmit access data to the data processing cloud 2 via a long-range communication connection 3. In the exemplary embodiment shown, the access data comprise a username and a password permanently assigned to the username.

[0044] The data processing cloud 2 also has a memory unit which is not illustrated in the figures and stores a database. The database stipulates which high-voltage devices 5 are assigned to the access data, that is to say the username in this case. If the user is, for example, the operator of an energy supply network having a number of high-voltage devices in the form of transformers, circuit breakers, isolators or surge arresters for which he is responsible, he can connect to the data processing cloud 2 by inputting his access data. The data processing cloud determines, on the basis of the username, whilst accessing said database, which high-voltage devices fall within the area of responsibility of the user. The data processing cloud 2 then accesses, via a long-range communication connection 3, the communication units 4 which are arranged in the vicinity of the high-voltage devices 5 assigned to the username. These communication units 4 are referred to as selected communication units 4. Each communication unit 4 has a plurality of inputs which are both analog and digital, for example. A sensor which is arranged on the sensor or in the high-voltage device is connected to at least one of the inputs, which sensor captures measured values and transmits these measured values to the communication unit via a short-range communication connection which is not illustrated in the figures.

[0045] In the example shown, a plurality of sensors are provided in the transformer 6. A sensor captures the temperature of the insulating fluid, here an ester, in the upper region of the tank. A further sensor captures the temperature of the insulating fluid in the lower region of the tank. A further sensor captures the currents flowing through the high-voltage winding, whereas a further sensor is a camera which records the occurrence of spark discharges. All sensors transmit their measured values or values derived from the latter to the communication unit 4 which processes these measured values. For this purpose, the communication unit 4 has expedient processors and a memory unit which buffers the captured measured values and/or the values derived from the latter. The measured values are processed here by the communication unit by means of expedient averaging over a certain period. The communication unit 4 locally stores the averaged values in its memory unit. The measured values can therefore be stored in the communication unit 4 for weeks, for example.

[0046] If the user uses his laptop 10 to access the data processing cloud 2 at a query time, the values stored in the communication unit 4 before this query time are transmitted to the data processing cloud 2. The data processing cloud 2 stores the transmitted data in its memory units not illustrated in the figures. The values stored there or, in other words, data can now be taken into account in an expedient visualization, for example.

[0047] Each communication unit 4 also has an antenna which makes it possible to determine the position of the communication unit 4. The communication unit 4 is arranged in the vicinity of the respective high-voltage device 5, that is to say less than 100 m away. In other words, the geographical location of the respective high-voltage device can also be captured by determining the position of the communication unit 4. This is carried out by means of a position determination system, for example GPS, Galileo or the like. If the geographical location of the high-voltage device has been determined, the data processing cloud 2 accesses weather data available for this location by virtue of the data processing cloud 2 accessing the database of a weather service in order to determine, for example, solar radiation, wind strength and outside temperature at the location of the respective high-voltage device.

[0048] FIG. 2 shows a further exemplary embodiment of the method according to the invention and of the system according to the invention, in which the geographical location of the respective high-voltage device 5 is shown on a map of Germany. It can be seen that not all high-voltage devices 5 are connected to the data processing cloud 2 via a long-range communication connection 3. Rather, some high-voltage devices 5 are decoupled from the data processing cloud 2. These high-voltage devices which are not connected do not fall within the area of responsibility of the user connected to the data processing cloud 2 via his input unit 10. The high-voltage devices 5 or communication units 4 which are not selected are assigned to a different network operator.

[0049] In order to better illustrate the status in the high-voltage devices 5, colored displays are used within the scope of the invention. According to one preferred embodiment of the invention, the current flowing via the respective transformer 6 is captured as the load current. The nominal current provided by the network operator, that is to say the intended target current, is stored as a parameter in the database of the data processing cloud 2. The data processing cloud 2 accesses this nominal current parameter and forms the quotient of the captured load current and said nominal current. If this quotient exceeds a predefined threshold value, for example 1.5 or 2, the color of the displayed transformer 6 changes from green to yellow, for example. If said quotient exceeds a further threshold value, for example 2.5, the transformer is displayed in red and a warning signal is transmitted to the laptop or a mobile telephone belonging to the user by the data processing cloud 2.

[0050] However, the visualization of the data processing cloud 2 is in no way restricted to geographical locations. The data processing cloud 2 can correlate the measured values captured by the sensors of the high-voltage devices 5 with any desired data obtained by the data processing cloud 2 from the so-called Internet. In addition, predictions are possible with the aid of simulation tools.