Method and apparatus for customization

• US 7,788,731 B2
• Filed: 03/25/2005
• Issued: 08/31/2010
• Est. Priority Date: 03/25/2005
• Status: Active Grant

• Current Assignee: Schweitzer Engineering Laboratories, Incorporated
• Original Assignee: Schweitzer Engineering Laboratories, Incorporated
• Inventors: Morris, Robert, Hawbaker, Jeffrey L., Miller, Andrew A.
• Primary Examiner(s): Zand; Kambiz
• Assistant Examiner(s): Tran; Tongoc
• Application Number:
  US11/089,818
• Publication Number:
  US 20060218310A1
• Time in Patent Office: 1,985 Days
• Field of Search: 713/300, 713/323, 713/324, 726/34, 702/62, 702/182, 702/122, 710/13
• US Class Current: 726/34
• CPC Class Codes: A61P 25/00 Drugs for disorders of the nervous system
• CPC Class Codes: G06F 1/28 Supervision thereof, e.g. detecting power-supply failure by out of limits supervision

Abstract

Provided is an apparatus and method for customization of a protective device. The apparatus and method includes coupling programmer programmable memory to a microprocessor for processing select logic schemes. The programmer programmable memory is adapted to be modifiable by only a programmer of said protective device. Elements associated with some of the logic schemes are implemented into the programmer programmable memory in the form of a compiled settings structure having a plurality of allocation fields.

Claims

1. An apparatus for customization of a protective device, said apparatus comprising:

a microprocessor for processing logic schemes associated with protection of power system elements, said microprocessor configured to have select operating intervals;

fixed memory coupled to the microprocessor and defining some of the logic schemes for processing by said microprocessor; and

programmer programmable memory coupled directly to said microprocessor and modifiable by only a programmer of the protective device, said programmer programmable memory including code space having a compiled settings structure including a plurality of allocation fields, wherein one of the allocation field includes portions of executable code and at least some of the other allocation fields are pointer allocation fields, each being associated with one of the microprocessor operating intervals, wherein each portion of executable code is associated with a select logic scheme to be processed by said microprocessor and wherein each portion of executable code is further associated with one of the pointer allocation fields for specifying the operating interval at which the portion of executable code is to be executed by the microprocessor such that the fixed memory does not require modification during customization of the apparatus.

2. The apparatus for customization of a protective device of claim 1, further including user programmable memory coupled to said microprocessor, said user programmable memory including portions of executable code associated with some of the select logic schemes and modifiable by a user of said protective device.

3. The apparatus for customization of a protective device of claim 1, wherein the protective device is a protective relay.

4. The apparatus for customization of a protective device of claim 1, wherein the portions of executable code are selected from a group consisting of operators, inputs, outputs, algorithms, code, and logic.

5. The apparatus for customization of a protective device of claim 1, wherein the logic scheme processed by said microprocessor is selected from a group consisting of overcurrent, voltage, directional, distance, differential, and frequency protective logic schemes.

6. The apparatus for customization of a protective device of claim 1, wherein one of the other allocation fields is a protective device allocation field for specifying a particular type of protective device associated with the compiled settings.

7. The apparatus for customization of a protective device of claim 1, wherein one of the other allocation fields is a reference allocation field for specifying a particular version of protective device associated with the compiled settings.

8. The apparatus for customization of a protective device of claim 1, wherein one of the other allocation fields is a digital signature allocation field for specifying the programmer of said programmer programmable memory.

9. The apparatus for customization of a protective device of claim 1, wherein one of the other allocation fields is an execution time allocation field for specifying the duration for executing each portion of executable code.

10. The apparatus for customization of a protective device of claim 1, wherein one of the portions of executable code includes code requiring execution during cold initialization operating interval of said protective device, and wherein one of the pointer allocation fields specifies that the portion of executable code is to be executed during the cold initialization operating interval of the protective device.

11. The apparatus for customization of a protective device of claim 1, wherein one of the portions of executable code includes code requiring execution during warm initialization operating interval of said protective device, and wherein one of the pointer allocation fields specifies that the portion of executable code is to be executed during the warm initialization operating interval of the protective device.

12. The apparatus for customization of a protective device of claim 1, wherein one of the pointer allocation fields is a run time code pointer allocation field for specifying the portion of executable code requiring execution during the select processing interval.

13. The apparatus for customization of a protective device of claim 1, wherein one of the portions of executable code includes code requiring verification, and wherein one of the pointer allocation fields is a settings validation code pointer allocation field for specifying the portion of executable code requiring validation.

14. The apparatus for customization of a protective device of claim 1, wherein one of the allocation fields is a settings structure allocation field including any elements requiring comparisons to associated thresholds.

15. The apparatus for customization of a protective device of claim 1, wherein one of the allocation fields is a default settings allocation field including default values for associated elements.

16. The apparatus for customization of a protective device of claim 5, further comprising volatile memory coupled to both the microprocessor and the programmer programmable memory.