CN111884337A - Method for carrying out configuration management on switching parameters of power distribution network - Google Patents

Abstract

The invention discloses a method for configuring and managing switching parameters of a power distribution network, which comprises the following steps: the switch parameters are submitted and approved, and are stored in a database; associating the switch equipment of the distribution network transformer substation and the line by using the SVG file of the GIS system, and associating the switch parameters with the corresponding switch equipment; setting a fixed value of equipment associated with a switch parameter, setting according to a setting rule to obtain a corresponding protection fixed value, and verifying the protection fixed value; after the fixed value setting of the equipment is finished, generating a fixed value calculation book, recording the fixed value calculation book as an equipment-level fixed value, and simultaneously storing and uploading the equipment-level fixed value to a device level; and when the setting personnel carries out setting next time, the fixed value calculation book is used as a historical fixed value for the setting personnel to carry out comparison setting. The method solves the management problem of the basic parameters of the power distribution network, simplifies the setting work of setting personnel and improves the work efficiency.

Description

Method for carrying out configuration management on switching parameters of power distribution network

Technical Field

The invention relates to the technical field of distribution network relay protection, in particular to a method for configuring and managing switch parameters of a distribution network.

Background

Along with the continuous construction of a power grid, the scale of the power distribution network is continuously enlarged, basic data of the power distribution network is more and more huge, basic parameters of equipment of the current power distribution network are basically reported and stored in an artificial paper mode, so that confusion of new and old parameters, loss and incompleteness of the basic parameters and the like are easily caused, once the basic parameters are lost or incomplete, inaccurate fixed value calculation is caused when related fixed value calculation is carried out, and finally the reliability of a power system is reduced. For example, patent CN105787819A discloses a wind farm relay protection setting calculation method, which only discloses setting calculation and setting of a protection setting value, the amount of related information is huge, no parameter is arranged, complex calculation is required each time, and the working efficiency is low.

Disclosure of Invention

The invention provides a method for configuring and managing switching parameters of a power distribution network aiming at the difficulties of the current relay protection situation of the power distribution network, basic parameter management, constant value calculation and the like, solves the problem of management of the basic parameters of the power distribution network, simplifies the setting work of setting personnel and improves the working efficiency.

The technical scheme of the invention is as follows:

a method for carrying out configuration management on switching parameters of a power distribution network comprises the following steps:

step 1, reporting and approving the switch parameters, and storing the switch parameters in a database;

step 2, associating the switch devices of the power distribution network transformer substation and the line by using the SVG file of the GIS, and associating the switch parameters with the corresponding switch devices;

step 3, setting a fixed value of equipment associated with the switch parameter, setting according to a setting rule to obtain a corresponding protection fixed value, and verifying the protection fixed value;

step 4, after the fixed value setting of the equipment is finished, generating a fixed value calculation book, recording the fixed value calculation book as an equipment level fixed value, and simultaneously storing and uploading the equipment level fixed value to a device level;

and 5, when the setting personnel carries out setting next time, the fixed value calculation book is used as a historical fixed value for the setting personnel to carry out comparison setting.

Further, the process of reporting the switch parameters in step 1 is as follows:

and filling the switch parameters by manually filling or intelligently identifying the corresponding word document.

Further, the process of approving the switch parameters in the step 1 is as follows:

after the switch parameters are filled in, an approval process is started, a setting person approves the filled protection parameter information table under the condition that the switch parameters are not wrong, the approval is finished, the approval is filed, data in the switch parameter table can be stored in a database of the system for permanent storage after the filing, and after every new switch parameter is reported, the old switch parameters can be automatically covered after the approval is finished.

Further, in step 2, all lines and switches of the power distribution network are identified from the SVG files acquired from the GIS system, displayed on a system page in a tree diagram form, and automatically corresponding to the switching devices on the lines according to the switching parameters stored in the database in the reporting flow.

Further, in step 3, the fixed values of all the switch devices on one line are set simultaneously in the setting process, and the fixed values are verified simultaneously according to the upper-lower level relation and the setting rule.

Further, the setting rule in step 3 refers to:

during the setting, different protection modes correspond to different rules, the rules of a certain fixed value can be redefined at any time, the power distribution network system can obtain relevant switch parameters which are approved by parameter filing and approval in a database according to the redefined rules, the fixed value is reset according to the redefined rules, the switch equipment for protecting the fixed value is reset, the fixed value of the switch equipment behind the switch equipment can be reset according to the matching of an upper level and a lower level, the reset fixed value can be verified according to the matching relation of the upper level and the lower level at the same time, if the verification condition is not met, the power distribution network system makes a prompt to enable a setting worker to reset.

Further, in step 4, the power distribution network system generates a page of a fixed value calculation book, and the setting personnel checks the correctness of the fixed value calculation method and the correctness of the setting rule according to the fixed value calculation book.

Further, in step 4, the equipment level constant value is uploaded to the last step of device level setting of the constant value setting in a process node mode, the calculated equipment level constant value is automatically covered to the core constant value in the device level setting, the device level constant value is correspondingly matched with the constant value of a manufacturer template in the power distribution network, and the last step of the power distribution network setting is completed.

Further, device-level refers to a device that contains a device-level constant.

Further, in step 5, when the same switchgear is set next time, the power distribution network system directly sets the switchgear according to the value of the historical fixed value.

The invention has the beneficial effects that:

the rationality and accuracy of the power distribution network protection setting are related to the safe and reliable operation of users and even the whole power grid, in order to solve the problem of related parameter management of the power distribution network and automatic calculation of relay protection setting, the invention provides a method for configuring and managing switch parameters of the power distribution network from the perspective of power distribution network setting personnel, firstly, the switch parameters of switch equipment of the power distribution network are reported and approved in a system, are stored in a database after being filed, then, circuits corresponding to the power distribution network are analyzed through SVG files in the GIS system, the switch equipment on the circuits are automatically related to the reported and approved switch parameters, then, switches on the circuits are set according to setting rules, and when a setting person carries out setting next time, the fixed value calculation book is used as a historical fixed value for the setting person to carry out comparison and setting. Through a series of work, the management problem of basic parameters of the power distribution network is solved, meanwhile, the setting work of setting personnel is simplified, the workload of the setting personnel is reduced, the process of the setting work of the power distribution network is not repeated and complicated, the setting work of the power distribution network is achieved from initial manual setting to system intelligent setting, and a foundation is laid for the intelligent management work of the power distribution network in the future.

Drawings

FIG. 1 is a schematic flow diagram of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

Example 1:

as shown in fig. 1, a method for performing configuration management on switching parameters of a power distribution network includes the following steps:

step 1, reporting and approving the switch parameters, and storing the switch parameters in a database;

step 2, associating the switch devices of the power distribution network transformer substation and the line by using the SVG file of the GIS, and associating the switch parameters with the corresponding switch devices;

step 3, setting a fixed value of equipment associated with the switch parameter, setting according to a setting rule to obtain a corresponding protection fixed value, and verifying the protection fixed value;

step 4, after the fixed value setting of the equipment is finished, generating a fixed value calculation book, recording the fixed value calculation book as an equipment level fixed value, and simultaneously storing and uploading the equipment level fixed value to a device level;

and 5, when the setting personnel carries out setting next time, the fixed value calculation book is used as a historical fixed value for the setting personnel to carry out comparison setting.

The process of reporting the switch parameters in the step 1 is as follows:

and filling the switch parameters by manually filling or intelligently identifying the corresponding word document.

The first method is as follows: manually filling parameters in the table, defining the position and the double-editing type of the switch, and filling CT and PT of the switch;

the second method comprises the following steps: and (4) directly importing related word documents, automatically identifying the contents in the words by the system, reading related information to the system, and sending the related information to an approval process.

The process of approving the switch parameters in the step 1 is as follows:

after the switch parameters are filled in, an approval process is started, a setting person approves the filled protection parameter information table under the condition that the switch parameters are not wrong, the approval is finished, the approval is filed, data in the switch parameter table can be stored in a database of the system for permanent storage after the filing, and when new switch parameters are reported later, the old switch parameters can be automatically covered after the approval is finished, so that the problem that the new and old parameters are easy to be confused is solved.

And 2, recognizing all lines and switches of the power distribution network from the SVG file acquired from the GIS system, displaying the lines and the switches on a system page in a tree diagram form, and automatically corresponding to the switching equipment on the lines according to the switching parameters stored in the database in the reporting flow.

And step 3, setting the fixed values of all the switch equipment on one line simultaneously in the setting process, and checking the fixed values of the switch equipment according to the upper-lower level relation and the setting rule simultaneously. By setting the fixed value of the equipment by using the system, the problem of manual error is solved, and the relay protection setting work is more convenient and rapid.

The setting rule in the step 3 refers to:

during the setting, different protection modes correspond to different rules, the rules of a certain fixed value can be redefined at any time, the power distribution network system can obtain relevant switch parameters which are approved by parameter filing and approval in a database according to the redefined rules, the fixed value is reset according to the redefined rules, the switch equipment for protecting the fixed value is reset, the fixed value of the switch equipment behind the switch equipment can be reset according to the matching of an upper level and a lower level, the reset fixed value can be verified according to the matching relation of the upper level and the lower level at the same time, if the verification condition is not met, the power distribution network system makes a prompt to enable a setting worker to reset.

In the step 4, the power distribution network system generates a page of the fixed value calculation book, and the setting personnel checks the correctness of the fixed value calculation method and the correctness of the setting rule according to the fixed value calculation book, so that the set fixed value is subjected to one more layer of check, and the reliability of the set value is improved.

And 4, uploading the equipment level constant value to the final step of device level setting of the constant value setting in a process node mode, automatically covering the calculated equipment level constant value to a core constant value in a device level in the device level setting, correspondingly matching the device level constant value with the constant value of a manufacturer template in the power distribution network, and finishing the final step of the power distribution network setting.

Wherein, the device level refers to a device containing a device level constant value.

In step 5, when the same switch equipment is set next time, the power distribution network system can directly set the switch equipment according to the numerical value of the historical fixed value.

The invention provides a method for configuring and managing switch parameters of a power distribution network from the perspective of power distribution network setting personnel, which comprises the steps of firstly conducting report approval and filing on the switch parameters of power distribution network switch equipment in a system, storing the report approval and the filed report approval in a database, analyzing a circuit corresponding to the power distribution network through an SVG (scalable vector graphics) file in a GIS (geographic information system), automatically associating the switch equipment on the circuit to the report approved switch parameters, setting switches on the circuit according to setting rules, obtaining corresponding protection fixed values, generating fixed value calculation books, and enabling the fixed value calculation books to serve as historical fixed values to be compared and set by the setting personnel when the setting personnel next time conducts setting. Through a series of work, the management problem of basic parameters of the power distribution network is solved, meanwhile, the setting work of setting personnel is simplified, the workload of the setting personnel is reduced, the process of the setting work of the power distribution network is not repeated and complicated, the setting work of the power distribution network is achieved from initial manual setting to system intelligent setting, and a foundation is laid for the intelligent management work of the power distribution network in the future.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A method for carrying out configuration management on switching parameters of a power distribution network is characterized by comprising the following steps:

step 1, reporting and approving the switch parameters, and storing the switch parameters in a database;

step 2, associating the switch devices of the power distribution network transformer substation and the line by using the SVG file of the GIS, and associating the switch parameters with the corresponding switch devices;

step 3, setting a fixed value of equipment associated with the switch parameter, setting according to a setting rule to obtain a corresponding protection fixed value, and verifying the protection fixed value;

step 4, after the fixed value setting of the equipment is finished, generating a fixed value calculation book, recording the fixed value calculation book as an equipment level fixed value, and simultaneously storing and uploading the equipment level fixed value to a device level;

and 5, when the setting personnel carries out setting next time, the fixed value calculation book is used as a historical fixed value for the setting personnel to carry out comparison setting.

2. The method for configuration management of protection parameters of a power distribution network according to claim 1, wherein the process of reporting the switch parameters in step 1 is as follows:

and filling the switch parameters by manually filling or intelligently identifying the corresponding word document.

3. The method for configuration management of protection parameters of a power distribution network according to claim 1, wherein the process of approving the switch parameters in step 1 is as follows:

after the switch parameters are filled in, an approval process is started, a setting person approves the filled protection parameter information table under the condition that the switch parameters are not wrong, the approval is finished, the approval is filed, data in the switch parameter table can be stored in a database of the system for permanent storage after the filing, and after every new switch parameter is reported, the old switch parameters can be automatically covered after the approval is finished.

4. The method according to claim 1, wherein in step 2, the SVG file obtained from the GIS system is used to identify all the lines and switches of the distribution network, and the identified lines and switches are displayed on the system page in the form of a tree diagram, and automatically correspond to the switching devices on the lines according to the switching parameters stored in the database in the reporting process.

5. The method for configuration management of the protection parameters of the power distribution network according to claim 1, wherein in the step 3, the fixed values of all the switch devices on one line are simultaneously set in the setting process, and the fixed values are simultaneously verified according to the superior-inferior relation and the setting rule.

6. The method for configuration management of the protection parameters of the power distribution network according to claim 5, wherein the setting rule in the step 3 refers to:

during the setting, different protection modes correspond to different rules, the rules of a certain fixed value can be redefined at any time, the power distribution network system can obtain relevant switch parameters which are approved by parameter filing and approval in a database according to the redefined rules, the fixed value is reset according to the redefined rules, the switch equipment for protecting the fixed value is reset, the fixed value of the switch equipment behind the switch equipment can be reset according to the matching of an upper level and a lower level, the reset fixed value can be verified according to the matching relation of the upper level and the lower level at the same time, if the verification condition is not met, the power distribution network system makes a prompt to enable a setting worker to reset.

7. The method for configuration management of protection parameters of a power distribution network according to claim 1, wherein in step 4, the power distribution network system generates pages of constant value calculation books, and the setting personnel checks the correctness of the constant value calculation method and the correctness of the setting rules according to the constant value calculation books.

8. The method for configuration management of protection parameters of a power distribution network according to claim 1, wherein in step 4, the equipment level fixed value is uploaded to the final step of device level setting of the fixed value setting in a process node manner, the calculated equipment level fixed value is automatically overlaid to the core fixed value in the device level during the device level setting, and the device level fixed value is correspondingly matched with the fixed value of a factory template in the power distribution network, so that the final step of the power distribution network setting is completed.

9. The method of claim 8, wherein the device level is a device that contains equipment level configuration values.

10. The method of claim 1, wherein in step 5, the power distribution network system directly sets the switchgear according to the historical value of the fixed value when the same switchgear is set next time.

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