CN103093399A - Simple standard operation method of county-level power grid relaying constant value computing module - Google Patents

Abstract

The invention discloses a simple standard operation method of a 3kV-110kV county-level power grid relaying constant value computing module, and belongs to the field of electrical power system power distribution network relaying. The operation method is standard and uniform and easy to learn and operate, a new student who carries out constant value computing for the first time can also grasp the method and complete operation smoothly. Through popularization and application of the method, a county-level relaying constant value management process and a computing mode can be further standardized and unified, standardization management of county-level relaying constant value computing is achieved, probability of mistakenly-determined accidents is greatly lowered, work amount of relaying constant value computing personnel is greatly lowered, working efficiency is improved, and prospects are wide.

Description

The simple and easy standard operation method of County Power Grid relay protection constant value computing module

Technical fieldThe present invention relates to the program development that the system for distribution network of power relay protection fixed value setting calculates, the simple and easy standard operation method of a kind of 3kV-110kV County Power Grid relay protection constant value computing module specifically belongs to system for distribution network of power relay protection field.

Background technologyIt is a very complicated job that the power distribution network relay protection constant value calculates; it need to be according to the parameter of power circuit, the capacity of user transformers, the various basic datas such as the method for operation of electrical network; through processes such as repeatedly impedance computation, calculation of short-circuit current, sensitivity checks, select best definite value to put in protective device.The relay protection constant value of past for power supply department at county level all adopts hand computation, the length that expends time in, and error rate is high.All drawbacks for the traditional-handwork algorithm; Deng Gushan leads its team develops " County Power Grid relay protection constant value computing module ", solved effectively that hand computation manually-operated process is many, the tuning error rate is high, computation process not science, be difficult to the problem of filing management.This module is in research and development in 2008,85 test in a county level use in the Hunan Province in 2010, and in August, 2011 is by Hunan Province Utilities Electric Co. organization of examination and comment, and wins Hunan Province first worker scientific and technical innovation prize second prize.This module has been filled up county telephone central office's relay protection constant value and has been calculated blank without general-purpose computations software, and functions of modules is practical, and is easy to use, easy maintenance, accelerating inside the province so that national County Power Plant promote.But, this module is in application in practice, because equipment preparation in various places is different, technical merit differs, and standardized management is not tight, still exist to some extent the deficiencies such as method of operating is lack of standardization, not simple and clear, disunity, thereby cause sometimes needing repeatedly to calculate, multi-pass operations increases unnecessary workload, reduce work efficiency, this evitable miscalculation even occurs.Therefore, specially for " 3kV-110kV County Power Grid relay protection constant value computing module ", improve as early as possible and determine corresponding with it unified and standard, simple and clear concrete operation method easy to learn, becoming industry personnel's active demand the sixth of the twelve Earthly Branches.

Summary of the inventionThe object of the present invention is to provide a kind of specially for the corresponding improvement of 3kV-110kV County Power Grid relay protection constant value computing module concrete operation method; the method is unified and standard; concisely easy to learn; easily operation especially also can be learned and smooth complete operation very soon for the new student who carries out for the first time definite value calculating.

For achieving the above object, technical scheme of the present invention is to realize like this.The simple and easy standard operation method of a kind of 3kV-110kV County Power Grid relay protection constant value computing module; operating environment is a standby computing machine that office2003 or wps2009 office software are housed; the operation threshold is possess basic electric power rudimentary knowledge and can use above-mentioned office software, and its method of operating step is:

A, " 3kV-110kV County Power Grid relay protection constant value computing module " is copied to computing machine, finds required submodule according to the guide of powerpoint courses of action, copy corresponding Excel file to self-built file;

B, with the needed filename of xcopy RNTO oneself, open the file of rename;

C, in underlying parameter rose zone, with the underlying parameter of unit lattice by the input of modifying of cell one by one;

D, complete when basic data input, after automatic calculating, according to shallow result of calculation in dark green, the final definite value numerical value of rose scenery is suitably adjusted, form fixed value list;

E, the fixed value list to forming, deposit once first once check whole computation process on computer screen comprehensively, prove conclusively errorless after, then print the sample manuscript preview once, guarantee the rationality of page setup, at last fixed value list is printed as positive original text, examines signature.

The know-why of 3kV-110kV County Power Grid relay protection constant value computing module is: adjust rules as technical foundation, the rudimentary algorithm of adjusting, computing formula take relay protection ultimate principle, 3kV-110kV grid relay protective apparatus operation; Take excel application as computational tool, computing formula, computation process, electric power graphs and text are combined; Make man machine operation interface with the powerpoint application program, the smooth complete operation of guiding computing staff.

Characteristics and the beneficial effect of the simple and easy standard operation method of 3kV of the present invention-110kV County Power Grid relay protection constant value computing module are; this method of operating is unified and standard; concisely easy to learn; easily operation especially also can be learned and smooth complete operation very soon for the new student who carries out for the first time definite value calculating.Of the present invention applying; with further standard and unified the whole province and even county telephone central office in all parts of the country relay protection constant value management process and computation schema; realize county telephone central office's relay protection constant value normalized management; reduce greatly the probability of " tuning error " accident; greatly reduce relay protection constant value computing staff's workload, greatly increase work efficiency, also can save simultaneously relevant software purchase commodity; remarkable economic and social benefits, development prospect is wide.

EmbodimentBelow in conjunction with the concrete introduction of applying brief introduction and method of operating, further set forth beneficial effect of the present invention.

" 3kV-110kV County Power Grid relay protection constant value computing module ", in research and development in 2008, promote examination in 2009 and be applied to later all-round popularization the in an all-round way in 2010, go through triennium from research and development to applying across the entire province in the Hunan Province, through revision and improvement constantly, especially in recent years for further revision and the standard of module concrete operation method, become a fairly perfect software, be used widely in whole Hunan Province County Power Grid, respond well, county telephone central office of the whole province relay protection setting evaluation work is stepped gone up new step, it is used at County Power Plant and still belongs to pioneering, be about to popularize in an all-round way and use.

The concrete steps of the simple and easy standard operation method of 3kV of the present invention-110kV County Power Grid relay protection constant value computing module are:

1, operating environment is a standby computing machine that office2003 or wps2009 office software are housed.

2, the operation threshold is possess basic electric power rudimentary knowledge and can use above-mentioned office software.

3, " 3kV-110kV County Power Grid relay protection constant value computing module " is copied to computing machine.

4, find required submodule according to the guide of powerpoint courses of action.

5, copy corresponding Excel file to self-built file.

6, with the needed filename of xcopy RNTO oneself, open the file of rename.

7, in underlying parameter rose zone, with the underlying parameter of unit lattice by the input of modifying of cell one by one.

8, basic data input is completed, and after automatic calculating, should suitably adjust the final definite value numerical value of rose scenery according to shallow result of calculation in dark green, can form fixed value list.

Whether 9, in fixed value list, each definite value numerical value is checked notice conscientiously whether the cooperation of time is correct, protect to throw to move back to be consistent with on-site actual situations, whether definite value numerical value and control character be consistent with result of calculation.

10, after above step was completed, deposited one time

11, first on computer screen, whole computation process is once checked comprehensively, prove conclusively errorless after, then print the sample manuscript preview once, with the rationality of assurance page setup.

12, at last fixed value list is printed as positive original text, examines signature.

Claims (1)

1. the simple and easy standard operation method of 3kV-110kV County Power Grid relay protection constant value computing module; operating environment is a standby computing machine that office2003 or wps2009 office software are housed; the operation threshold is possess basic electric power rudimentary knowledge and can use above-mentioned office software, it is characterized in that the method for operating step is:

A, " 3kV-110kV County Power Grid relay protection constant value computing module " is copied to computing machine, finds required submodule according to the guide of powerpoint courses of action, copy corresponding Excel file to self-built file;

B, with the needed filename of xcopy RNTO oneself, open the file of rename;

C, in underlying parameter rose zone, with the underlying parameter of unit lattice by the input of modifying of cell one by one;

D, complete when basic data input, after automatic calculating, according to shallow result of calculation in dark green, the final definite value numerical value of rose scenery is suitably adjusted, form fixed value list;

E, the fixed value list to forming, deposit once first once check whole computation process on computer screen comprehensively, prove conclusively errorless after, then print the sample manuscript preview once, guarantee the rationality of page setup, at last fixed value list is printed as positive original text, examines signature.