APPARATUS AND METHOD FOR STABILIZING AN ELECTRICAL POWER IMPORT

• US 20130162038A1
• Filed: 03/08/2011
• Published: 06/27/2013
• Est. Priority Date: 04/22/2010
• Status: Abandoned Application

• Current Assignee: Siemens AG
• Original Assignee: Siemens AG
• Inventors: Falk, Rainer, Fries, Steffen, Hof, Hans-Joachim
• Application Number:
  US13/642,598
• Publication Number:
  US 20130162038A1
• Time in Patent Office: Days
• US Class Current: 307/26
• CPC Class Codes: H02J 13/00002 characterised by monitoring
• CPC Class Codes: H02J 13/00004 characterised by the power network being locally controlled
• CPC Class Codes: H02J 13/00022 using wireless data transmission
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 2310/12 The local stationary network supplying a household or a building
• CPC Class Codes: H02J 3/0012 Contingency detection
• CPC Class Codes: H02J 3/14 by switching loads on to, or off from, network, e.g. progressively balanced loading
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving

Abstract

An apparatus and a method for stabilizing an electrical power import from a power distribution system by way of at least one subscriber connected to the power distribution system via an electrical connection. An electrical power import anomaly when electrical power is imported by the respective subscriber from the power distribution system is identified using transmitted control messages, which are determined for the respective subscriber or originate from the respective subscriber. Once an electrical power import anomaly has been identified, power consumption units or power generation units are driven correspondingly. The apparatus effectively protects the power distribution system from third-party intervention or implementation errors which can bring about an unstable system response.

Claims

1-15. -15. (canceled)

16. An apparatus for stabilizing an electrical power import by at least one subscriber from an electrical power distribution network, wherein the subscriber is connected to the electrical power distribution network via an electrical connection interface, the apparatus comprising:

means for identifying an electrical power import anomaly during the import of the electrical power by the respective subscriber from the electrical power distribution network based on transmitted control messages that are destined for the respective subscriber or originate from the respective subscriber; and

for driving electrical power consumption units or electrical power generation units accordingly after an electrical power import anomaly has been identified.

17. The apparatus according to claim 16, wherein a plurality of electrical power consumption units of the respective subscriber are connected via a gateway and the electrical connection interface of the subscriber to a distribution station, which is provided for the subscriber, of the electrical power distribution network.

18. The apparatus according to claim 17, wherein the electrical power import anomaly of a subscriber is identified by an electrical power import anomaly identification unit which is provided at the gateway of the respective subscriber, in the distribution station that is provided for the respective subscriber, or in a server of an electrical power supplier.

19. The apparatus according to claim 16, wherein after identification of an electrical power import anomaly on the premises of a subscriber, at least some of the electrical power consumption units of the subscriber and/or further subscribers are switched from a normal operating mode to a restricted operating mode or are deactivated completely.

20. The apparatus according to claim 16, which comprises an electrical power consumption calculation unit provided for the subscriber, for calculating, either continuously or as required, the electrical power that is consumed by the electrical power consumption units of the respective subscriber and an electrical power import anomaly identification unit of the respective subscriber connected to receive a report of the calculation by the electrical power consumption calculation unit.

21. The apparatus according to claim 17, which comprises an electrical power import anomaly identification unit configured to identify an electrical power import anomaly based on control messages that are sent from the gateway of the subscriber or received by the gateway of the subscriber.

22. The apparatus according to claim 16, wherein the control messages are transmitted via the electrical connection interface of the subscriber or via a separate data network.

23. The apparatus according to claim 16, which comprises an electrical power import anomaly identification unit of a subscriber configured to identify an electrical power import anomaly by comparing the transmitted control messages with predefined unauthorized-intervention patterns or with historically recorded data.

24. The apparatus according to claim 16, which comprises an electrical power import anomaly identification unit of a subscriber configured to identify an electrical power import anomaly whenever the transmitted control messages satisfy at least one configurable identification rule for identifying an electrical power import anomaly.

25. The apparatus according to claim 16, which comprises an electrical power import anomaly identification unit configured to perform one or more of the following additional checks for the purpose of identifying an electrical power import anomaly:

a check of the quantity of electrical power that the subscriber has imported from the electrical power distribution network or fed into the electrical power distribution network via the electrical connection interface;

a check of the integrity of the gateway of the subscriber;

or

a check of switching instructions that are generated by the gateway of the subscriber, in respect of a chronological sequence and a frequency thereof.

26. The apparatus according to claim 17, wherein the gateway is configured to transmit the control messages by way of a predefined data transmission protocol and within a predefined data format.

27. The apparatus according to claim 26, wherein the control messages are data packets formed of administrative data and payload data, and wherein said electrical power import anomaly identification unit is configured to identify an electrical power import anomaly on a basis of conspicuous administrative data and/or conspicuous payload data of the transmitted control messages.

28. The apparatus according to claim 16, which comprises an electrical power import anomaly identification unit configured to identify an unauthorized intervention that is intended to destabilize the electrical power distribution network on the basis of the control messages, and to report a type and a location of the respective unauthorized intervention to a server of an infrastructure operator of the electrical power distribution network.

29. The apparatus according to claim 17, wherein a local electrical power import anomaly identification unit provided at the gateway of a subscriber is configured to load predefined unauthorized-intervention patterns for identifying electrical power import anomalies from a database or to receive the predefined unauthorized-intervention patterns in a training mode.

30. A method for stabilizing an electrical power import from an electrical power distribution network, the method which comprises:

identifying an electrical power import anomaly during the import of electrical power by at least one subscriber from the electrical power distribution network by analyzing transmitted control messages that are destined for the respective subscriber or originate from the respective subscriber;

upon identifying an electrical power import anomaly on the premises of a subscriber, driving electrical power consumption units of the subscriber and/or further subscribers to cause a stabilization of the electrical power import.