Processing system for a power distribution system

• US 20030212473A1
• Filed: 02/25/2003
• Published: 11/13/2003
• Est. Priority Date: 02/25/2002
• Status: Abandoned Application

• Current Assignee: General Electric Company
• Original Assignee: General Electric Company
• Inventors: Vandevanter, John S.
• Application Number:
  US10/373,573
• Publication Number:
  US 20030212473A1
• Time in Patent Office: Days
• US Class Current: 700/293
• CPC Class Codes: G06F 1/12 Synchronisation of different clock signals provided by a plurality of clock generators
• CPC Class Codes: H01H 2300/03 Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
• CPC Class Codes: H02H 1/0061 concerning transmission of signals transmission of measured quantities or switching orders; sectionalised protection involving signal transmission between at least two stations H02H7/261; comparison of the voltage or current values at two spaced portions of a single system H02H3/28; transferring the output of a sensing member to another variable G01D5/00; electrical measuring arrangements using modulation of electromagnetic waves, e.g. light beams G01R15/24, G01R15/26
• CPC Class Codes: H02H 3/006 Calibration or setting of parameters
• CPC Class Codes: H02H 3/05 with means for increasing reliability, e.g. redundancy arrangements for logic circuits H03K19/003
• CPC Class Codes: H02H 7/263 involving transmissions of measured values comparison of currents or voltages using pilot wires H02H3/30
• CPC Class Codes: H02J 13/00001 characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
• CPC Class Codes: H02J 13/00007 using the power network as support for the transmission
• CPC Class Codes: H02J 13/00009 using pulsed signals
• CPC Class Codes: H02J 13/00012 using an auxiliary transmission line
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 13/00018 using phone lines
• CPC Class Codes: H02J 13/00036 the elements or equipment being or involving switches, relays or circuit breakers circuits for indication of single switches H01H9/167
• CPC Class Codes: H02J 13/0004 involved in a protection system
• CPC Class Codes: H02J 2203/20 Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
• CPC Class Codes: H02J 2310/64 The condition being economic, e.g. tariff based load management
• CPC Class Codes: H02J 3/00125 Transmission line or load transient problems, e.g. overvoltage, resonance or self-excitation of inductive loads H02J3/01 takes precedence
• CPC Class Codes: H02J 3/007 Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing uninterruptable power supply H02J9/00
• CPC Class Codes: Y02B 70/30 Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02B 70/3225 Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y02B 90/20 : Smart grids as enabling technology in buildings sector smart grids supporting the management or operation of end-user stationary applications in general, or like technologies with no associated climate change mitigation effect Y04S20/00
• CPC Class Codes: Y04S 10/40 : Display of information, e.g. of data or controls
• CPC Class Codes: Y04S 20/14 : Protecting elements, switches, relays or circuit breakers
• CPC Class Codes: Y04S 20/20 : End-user application control systems
• CPC Class Codes: Y04S 20/221 : General power management systems
• CPC Class Codes: Y04S 20/222 : Demand response systems, e.g. load shedding, peak shaving
• CPC Class Codes: Y04S 40/121 : using the power network as support for the transmission
• CPC Class Codes: Y04S 40/124 : using wired telecommunication networks or data transmission busses
• CPC Class Codes: Y04S 50/10 : Energy trading, including energy flowing from end-user application to grid

Abstract

There is provided a processing system for a power distribution system. The processing system includes a first processor for executing a first task having a first priority, and a second processor for executing a second task having a second priority.

Claims

1. A processing system for a power distribution system, comprising:

a first processor for executing a first task having a first priority; and

a second processor for executing a second task having a second priority.

2. The processing system of claim 1, wherein said processing system is a component of a centralized circuit breaker protection system for said power distribution system.

3. The processing system of claim 1, wherein said first processor comprises a digital signal processor.

4. The processing system of claim 1, wherein said first task is selected from the group consisting of:

an instantaneous overcurrent trip determination, a short time overcurrent trip determination, a long time overcurrent trip determination, and a ground fault trip determination.

5. The processing system of claim 1, wherein said first processor makes a protective determination with regard to an event within 4 milliseconds of a receipt of data relating to an occurrence of said event.

6. The processing system of claim 1, wherein said first processor is ready to execute said first task within 4 milliseconds of when power is provided to said first processor.

7. The processing system of claim 1, wherein said first processor is powered by a power feed of said power distribution system, and wherein said power feed is also feeding a breaker that is controlled by said processing system.

8. The processing system of claim 1, wherein said first processor is powered by a first power source and said second processor is powered by a second power source.

9. The processing system of claim 8, further comprising a communication interface between said first processor and said second processor that provides power isolation between said first power source and said second power source.

10. The processing system of claim 9, wherein said power isolation is achieved by optically coupling signals through said communication interface.

11. The processing system of claim 1, further comprising:

a buffer for storing a plurality of data packets from a data communication network,

wherein said second processor reads said plurality of data packets from said buffer as a batch.

12. A processing system for a centralized circuit breaker protection system for a power distribution system, comprising:

a first processor for executing an instantaneous overcurrent trip determination for said centralized circuit breaker protection system; and

a second processor for executing a task other than said instantaneous overcurrent trip determination.

13. The processing system of claim 12, wherein said first processor also executes a task selected from the group consisting of:

a short time overcurrent trip determination, a long time overcurrent trip determination, and a ground fault trip determination.

14. The processing system of claim 12, wherein said first processor makes said instantaneous overcurrent trip determination within 4 milliseconds of a receipt of data relating to an occurrence of an instantaneous overcurrent condition.

15. The processing system of claim 12, wherein said first processor is ready to execute said first task within 4 milliseconds of when power is provided to said first processor.

16. The processing system of claim 12,

wherein said first processor is powered by a power feed of said power distribution system, and

wherein said power feed is also feeding a breaker that is controlled by said processing system.

17. The processing system of claim 12, wherein said first processor is powered by a first power source and said second processor is powered by a second power source.

18. The processing system of claim 17, further comprising a communication interface between said first processor and said second processor that provides power isolation between said first power source and said second power source.

19. The processing system of claim 12, further comprising:

a buffer for storing a plurality of data packets from a data communication network,

wherein said second processor reads said plurality of data packets from said buffer as a batch.

20. A method of executing tasks in a power distribution system, comprising:

employing a first processor for executing a first task having a first priority; and

employing a second processor for executing a second task having a second priority.

21. The method of claim 20, wherein said first processor and said second processor are components in a centralized circuit breaker protection system for said power distribution system.

22. A method for executing tasks in a centralized circuit breaker protection system for a power distribution system, comprising:

employing a first processor for executing an instantaneous overcurrent trip determination for said centralized circuit breaker protection system; and

employing a second processor for executing a task other than said instantaneous overcurrent trip determination.