CN113643154A - Relay protection constant value intelligent auditing system - Google Patents
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Abstract
The invention discloses an intelligent auditing system for relay protection fixed value, which comprises an OMS communication interface, a central processing unit (OMS) and a control unit, wherein the OMS communication interface is used for acquiring a fixed value data set; the storage module is used for storing the acquired fixed value data set; the analysis module extracts the fixed value data set in the storage module through the loader, analyzes the fixed value data set, and analyzes the fixed value data set into a plurality of fixed value units with a set format; the classification module is used for classifying the analyzed constant value data according to a set rule and classifying constant value units with the same format under the same group of auditing items; and the constant value auditing module is used for auditing whether each constant value unit is within a set threshold value. And carrying out fixed value correctness verification according to the fixed value type and a specific fixed value auditing principle, and carrying out alarm prompt on the fixed value which does not conform to the fixed value auditing principle.
Description
Technical Field
The invention relates to the technical field of intelligent auditing of relay protection fixed values of regulation and control sub-centers, in particular to an intelligent auditing system of relay protection fixed values.
Background
With the development of power grids, the scale of the power grids is gradually enlarged, and in order to guarantee the safe operation of the power grids, the responsibility of a relay protection department is important. The relay protection setting calculation is the core work of a relay protection department, a typical 750 kV transformer substation needs to set 50-80 fixed value lists, a single set of line protection fixed value list comprises about 100 fixed values, and a single set of main transformer protection fixed value list comprises about 140 fixed values. At present, the checking work of the protection fixed value is manually checked by a setting calculator. In recent years, with the rapid development of the scale of a power grid, new commissioning plants are increased year by year, and in addition, the commissioning equipment needs to be replaced and upgraded by a protection device, the operation mode adjustment needs to change the fixed value and other work, so that the whole calculation workload is greatly increased, the bearing capacity of the whole calculation staff is seriously insufficient, the efficiency needs to be improved by utilizing an intelligent system, and technical support is provided for the rapid development and safe and stable operation of the power grid.
Compared with the increase range of data volume, the current technology of acquiring mass data and then analyzing and processing is relatively lagged, the traditional statistical means is difficult to meet the requirements, and methods such as big data and the like need to be applied to dig deeper rules so as to ensure the economy, safety and reliability of system operation. How to fully utilize the accumulated data, quickly and effectively analyze, process and refine the data, prompt the principle and rule contained behind the data, convert the principle and rule into actual values, become key problems in the power grid operation management and even become key problems in the power industry.
Therefore, the data mining technology is fully utilized, the data are analyzed from different dimensions, different data display modes are utilized, different types of abnormal points are found through the multi-dimensional dynamic display and intelligent drilling technology, and the applicability of the traditional standard is verified through deep analysis of the abnormal points; the data of 'regional or unit familial defects' is found by benchmarking a certain index of the same type of data in different regions; through the organic combination of visual data display and professional business, the equipment protection constant value is deeply researched, a new standard is provided, a new method for professional application is provided, the trend prediction of the equipment constant value is realized, the whole process and each link of setting calculation are deeply reached, the expert experience knowledge rules are summarized to carry out layer-by-layer customs control and layer-by-layer check on various factors influencing the correctness of the constant value, the intelligent monitoring and alarming of the whole setting calculation process and the management and control on the risk of the protection setting calculation system are realized, the accuracy and the intelligence of the setting inspection of the setting calculation system are improved, the lean management level of the relay protection setting process is improved, and the safe operation of a power grid is ensured.
Disclosure of Invention
In view of this, the main objective of the present invention is to provide an intelligent auditing system for relay protection setting values.
The technical scheme adopted by the invention is as follows:
an intelligent auditing system for relay protection constant value comprises
The OMS communication interface is used for acquiring a fixed value data set;
the storage module is used for storing the acquired fixed value data set;
the analysis module extracts the fixed value data set in the storage module through the loader, analyzes the fixed value data set, and analyzes the fixed value data set into a plurality of fixed value units with a set format;
the classification module is used for classifying the analyzed constant value data according to a set rule and classifying constant value units with the same format under the same group of auditing items;
the fixed value auditing module is used for auditing whether each fixed value unit is within a set threshold value;
the fixed value auditing module also comprises a function of screening whether other fixed value units in the same group have correlation or not according to the approved fixed value unit;
or screening whether other constant value units in other groups have relevance according to the approved constant value units.
The early warning module is used for early warning a constant value unit exceeding a set first threshold value;
or, performing synchronous early warning on the fixed value unit exceeding the set first threshold value and other fixed value units related in the same group;
or, carrying out synchronous early warning on the constant value unit exceeding the set first threshold value and other associated constant value units in other groups.
Further, the fixed value data is one item or a combination of any several items and a fixed value item in the names of protection devices, stations, protected devices and codes.
Furthermore, the fixed value auditing module also comprises auditing of a single set of protection fixed value item, correlation auditing of double sets of protection fixed values on the same side and correlation auditing of protection fixed values on two sides of a line.
Further, the examination of the single set of protection constant value items comprises judging whether the single constant value item in the constant value unit is within a set second threshold value,
or, judging whether the constant value item is associated with other associated constant value items in the same constant value unit, and judging whether the associated constant value item is within a set third threshold value.
Further, the correlation audit of the ipsilateral double-set protection fixed value comprises:
acquiring first fixed value items of two sets of mutually standby first protection devices on the same side, respectively auditing the acquired first fixed value items, comparing the audited results, and if the results are consistent, judging the result to be normal;
if the results are not consistent, an early warning is sent out;
or two sets of mutually standby second fixed value items of other protection devices associated with the first protection device are obtained, the obtained second fixed value items are respectively checked, the checked results are compared, and if the results are consistent, the result is considered to be normal;
and if the results are inconsistent, giving out an early warning.
Further, the association audit of the protection fixed values on two sides of the line includes:
acquiring first parameter constant values of two sets of mutually standby first protected equipment at two sides of a line, respectively auditing the acquired first parameter constant values, comparing the auditing results, and if the results are consistent, determining that the first protected equipment is normal;
if the results are not consistent, an early warning is sent out;
or, acquiring two sets of mutually standby second parameter fixed values of other protected equipment associated with the first protected equipment, respectively auditing the acquired second parameter fixed values, comparing the audited results, and if the results are consistent, determining that the result is normal;
and if the results are inconsistent, giving out an early warning.
Further, the constant value unit and other constant value units in the same group determine whether an association exists through a protection control word;
the fixed value unit and other fixed value units in other groups determine whether to be associated through protecting channel identification codes.
Further, the setting rule includes classifying according to the equipment type, the equipment parameter setting value, the protection control word and the soft pressing plate.
Further, the fixed value is a numerical value corresponding to the fixed value item.
The invention has the beneficial effects that:
the invention obtains the fixed value data through the OMS communication interface, classifies the fixed value information according to the equipment type, the parameter type fixed value of the protection device, the numerical value type fixed value of the protection device, the control word fixed value of the protection device and the soft pressing plate of the protection device, checks the correctness of the fixed value according to the fixed value type and a specific fixed value auditing principle, and gives an alarm to the fixed value which is not in accordance with the fixed value auditing principle, and has the following advantages:
1. and establishing an auditing principle of a single fixed value item, an auditing principle of an associated fixed value item and an auditing principle of the associated fixed value item in the related primary equipment protection device through the fixed value item of the analysis device. And the intelligent automatic auditing of the device constant value is realized through the maintenance of a check expert library.
2. And classifying and dividing tasks according to the devices, the fixed value types and the fixed value items, and calculating the auditing tasks by a parallel technology to finish batch calculation of intelligent fixed value auditing. The working mode of calculation and audit of the conventional fixed value of the power grid is greatly changed, the fixed value of the device is automatically audited through the relay protection fixed value intelligent audit system, a safety defense line is added to the relay protection fixed value before execution, and the hidden danger of mistakenly-set accidents is avoided; the accuracy and the safety of the actual operation fixed value of the relay protection device are improved, and incorrect relay protection actions caused by error audit or missed audit of workers are prevented. The project achievement has important significance for enhancing the correctness of the relay protection setting value in time mastered by relay protection personnel and power grid dispatching personnel, and greatly improving the reliability of the relay protection operation and the safety of the system operation.
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FIG. 1 is a schematic diagram of a system framework of the present invention;
fig. 2 is a schematic diagram of a functional unit of the constant value auditing module according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to examples and the accompanying drawings.
With reference to figures 1 and 2 of the drawings,
embodiment 1 provides an intelligent auditing system for relay protection fixed values. Comprises that
The OMS communication interface is used for acquiring a fixed value data set;
the storage module is used for storing the acquired fixed value data set;
the analysis module extracts the fixed value data set in the storage module through the loader, analyzes the fixed value data set, and analyzes the fixed value data set into a plurality of fixed value units with a set format;
the classification module is used for classifying the analyzed constant value data according to a set rule and classifying constant value units with the same format under the same group of auditing items;
the fixed value auditing module is used for auditing whether each fixed value unit is within a set threshold value;
the early warning module is used for early warning the constant value unit exceeding the set first threshold value;
the fixed value data is one item or a combination of any several items and fixed value items in the names of protection devices, stations, protected equipment, codes and fixed values.
The setting rules comprise classification according to equipment types, equipment parameter fixed values, protection control words and soft pressing plates.
The fixed value is a numerical value corresponding to the fixed value item.
Embodiment 2, the invention provides an intelligent auditing system for relay protection fixed value, which comprises
The OMS communication interface is used for acquiring a fixed value data set;
the storage module is used for storing the acquired fixed value data set;
the analysis module extracts the fixed value data set in the storage module through the loader, analyzes the fixed value data set, and analyzes the fixed value data set into a plurality of fixed value units with a set format;
the classification module is used for classifying the analyzed constant value data according to a set rule and classifying constant value units with the same format under the same group of auditing items;
the fixed value auditing module is used for auditing whether each fixed value unit is within a set threshold value;
the fixed value auditing module also comprises a function of screening whether other fixed value units in the same group have correlation or not according to the approved fixed value unit;
the early warning module is used for early warning the constant value unit exceeding the set first threshold;
or, performing synchronous early warning on the fixed value unit exceeding the set first threshold value and other fixed value units related in the same group;
the fixed value data is one item or a combination of any several items and fixed value items in the names of protection devices, stations, protected equipment, codes and fixed values.
The fixed value unit and other fixed value units in the same group determine whether association exists through a protection control word; protection control words are control words that have similar or identical attributes and have settings for the operation of the associated protection device.
The setting rules comprise classification according to equipment types, equipment parameter fixed values, protection control words and soft pressing plates.
The fixed value is a numerical value corresponding to the fixed value item.
Embodiment 3, a relay protection constant value intelligence audit system, includes
The OMS communication interface is used for acquiring a fixed value data set;
the storage module is used for storing the acquired fixed value data set;
the analysis module extracts the fixed value data set in the storage module through the loader, analyzes the fixed value data set, and analyzes the fixed value data set into a plurality of fixed value units with a set format;
the classification module is used for classifying the analyzed constant value data according to a set rule and classifying constant value units with the same format under the same group of auditing items;
the fixed value auditing module is used for auditing whether each fixed value unit is within a set threshold value;
the fixed value auditing module also comprises a step of screening whether other fixed value units in other groups have relevance according to the approved fixed value units.
The early warning module is used for early warning the constant value unit exceeding the set first threshold value;
or, carrying out synchronous early warning on the constant value unit exceeding the set first threshold value and other associated constant value units in other groups.
The fixed value data is one item or a combination of any several items and fixed value items in the names of protection devices, stations, protected equipment, codes and fixed values.
The fixed value unit and other fixed value units in other groups determine whether to be associated through protection channel identification codes, wherein the protection channel identification codes are identification codes set by two same protection devices or operation associated devices which are not in the same line.
The setting rules comprise classification according to equipment types, equipment parameter fixed values, protection control words and soft pressing plates.
The fixed value is a numerical value corresponding to the fixed value item.
Embodiment 4, the invention provides an intelligent relay protection constant value auditing system based on embodiments 1 to 3, wherein the constant value auditing module further includes auditing of a single set of protection constant value item, correlation auditing of two sets of protection constant values on the same side, and correlation auditing of protection constant values on two sides of a line.
The examination of the single set of protection constant value items comprises judging whether the single constant value item in the constant value unit is within a set second threshold value,
or, judging whether the constant value item is associated with other associated constant value items in the same constant value unit, and judging whether the associated constant value item is within a set third threshold value.
The correlation audit of the same-side double-set protection fixed value comprises the following steps:
acquiring first fixed value items of two sets of mutually standby first protection devices on the same side, respectively auditing the acquired first fixed value items, comparing the audited results, and if the results are consistent, judging the result to be normal;
if the results are not consistent, an early warning is sent out;
or two sets of mutually standby second fixed value items of other protection devices associated with the first protection device are obtained, the obtained second fixed value items are respectively checked, the checked results are compared, and if the results are consistent, the result is considered to be normal;
and if the results are inconsistent, giving out an early warning.
Further, the association audit of the protection fixed values on two sides of the line includes:
acquiring first parameter constant values of two sets of mutually standby first protected equipment at two sides of a line, respectively auditing the acquired first parameter constant values, comparing the auditing results, and if the results are consistent, determining that the first protected equipment is normal;
if the results are not consistent, an early warning is sent out;
or, acquiring two sets of mutually standby second parameter fixed values of other protected equipment associated with the first protected equipment, respectively auditing the acquired second parameter fixed values, comparing the audited results, and if the results are consistent, determining that the result is normal;
and if the results are inconsistent, giving out an early warning.
In the invention, the relay protection fixed value intelligent auditing system mainly comprises three parts, namely: the system comprises a fixed value data acquisition module, a fixed value analysis and classification function, a fixed value auditing function and an early warning function.
Obtaining fixed value data: the fixed value data is provided by the production OMS and mainly comprises a protection device name, a station name, a protected device name, a code, a fixed value and a fixed value item. The fixed value item comprises protection fixed value names of various types of equipment, the fixed value is a numerical value corresponding to each fixed value item, and if a special description exists, the fixed value item can be filled in a remark column.
Constant value analysis and classification: the fixed value data acquired from the OMS communication interface needs to be analyzed and classified before being audited, each fixed value item is analyzed into a fixed value unit with a uniform format, and then classification is carried out according to equipment types, equipment parameter fixed values, protection control words and soft pressing plates.
The fixed value auditing and early warning function: the device is used for verifying whether each constant value unit is within a set threshold value;
the fixed value auditing module also comprises a function of screening whether other fixed value units in the same group have correlation or not according to the approved fixed value unit;
or screening whether other constant value units in other groups have relevance according to the approved constant value units.
Meanwhile, the intelligent fixed value audit also comprises intelligent audit of a single set of protection fixed value item, correlation audit of double sets of protection fixed values on the same side and correlation audit of protection fixed values on two sides of a line.
Intelligent audit of single set of protection fixed value items: the check of the fixed value of a single set of protection device is a basic function module of the relay protection fixed value intelligent check system. The module is realized on the basis of obtaining the fixed value of a single protection device in the OMS communication interface. The main realized functions are as follows: judging a reasonable interval of the value of a single constant value item, and auditing the logical relation of the associated constant value items.
And (3) performing correlation audit on two sets of protection fixed values of the same equipment: the association audit of the double-set protection constant values of the same equipment firstly obtains the fixed values of two sets of protection devices which are mutually standby and on the same side of protection, and checks the fixed values through the associated fixed value items between the double-set protection, thereby finding the fixed value items of the double-set protection which are inconsistent and giving an alarm.
And (3) correlation audit of protection fixed values at two sides of the line: the correlation checking of the protection setting values at two sides of the line mainly checks the consistency of the parameter setting values of basic equipment at two sides of the line, the correlation of related control words and the logic of protection channel identification codes, thereby performing checking alarm on the setting data to the greatest extent.
And (3) intelligently early warning a fixed value audit result: in visual display, the examination and verification result of the relay protection constant value is expressed by a visual means, so that the integration level of display is enhanced, and the visual, convenient and friendly effects are achieved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The relay protection constant value intelligent auditing system is characterized by comprising
The OMS communication interface is used for acquiring a fixed value data set;
the storage module is used for storing the acquired fixed value data set;
the analysis module extracts the fixed value data set in the storage module through the loader, analyzes the fixed value data set, and analyzes the fixed value data set into a plurality of fixed value units with a set format;
the classification module is used for classifying the analyzed constant value data according to a set rule and classifying constant value units with the same format under the same group of auditing items;
the fixed value auditing module is used for auditing whether each fixed value unit is within a set threshold value;
the fixed value auditing module also comprises a function of screening whether other fixed value units in the same group have correlation or not according to the approved fixed value unit;
or screening whether other constant value units in other groups have relevance according to the approved constant value units.
2. The intelligent relay protection constant value auditing system of claim 1, characterized by further comprising an early warning module that warns constant value units that exceed a set first threshold;
or, performing synchronous early warning on the fixed value unit exceeding the set first threshold value and other fixed value units related in the same group;
or, carrying out synchronous early warning on the constant value unit exceeding the set first threshold value and other associated constant value units in other groups.
3. The relay protection constant value intelligent auditing system of claim 1 characterized in that the constant value data is one or a combination of any several items and constant value items in protection device name, station name, protected equipment name, code and constant value.
4. The intelligent relay protection constant value auditing system of claim 1, where the constant value auditing module further includes auditing of a single set of protection constant value items, associated auditing of a pair of sets of protection constant values on the same side, and associated auditing of protection constant values on both sides of the line.
5. The relay protection constant value intelligent auditing system of claim 4, where auditing of the single set of protection constant value items includes determining whether a single constant value item in a constant value unit is within a set second threshold,
or, judging whether the constant value item is associated with other associated constant value items in the same constant value unit, and judging whether the associated constant value item is within a set third threshold value.
6. The intelligent relay protection constant value auditing system of claim 4, where the correlation of ipsilateral double protection constant values audits include:
acquiring first fixed value items of two sets of mutually standby first protection devices on the same side, respectively auditing the acquired first fixed value items, comparing the audited results, and if the results are consistent, judging the result to be normal;
if the results are not consistent, an early warning is sent out;
or two sets of mutually standby second fixed value items of other protection devices associated with the first protection device are obtained, the obtained second fixed value items are respectively checked, the checked results are compared, and if the results are consistent, the result is considered to be normal;
and if the results are inconsistent, giving out an early warning.
7. The intelligent relay protection constant value auditing system of claim 4, where the correlation auditing of the line side protection constant values includes:
acquiring first parameter constant values of two sets of mutually standby first protected equipment at two sides of a line, respectively auditing the acquired first parameter constant values, comparing the auditing results, and if the results are consistent, determining that the first protected equipment is normal;
if the results are not consistent, an early warning is sent out;
or, acquiring two sets of mutually standby second parameter fixed values of other protected equipment associated with the first protected equipment, respectively auditing the acquired second parameter fixed values, comparing the audited results, and if the results are consistent, determining that the result is normal;
and if the results are inconsistent, giving out an early warning.
8. The relay protection constant value intelligent auditing system of claim 1 where the constant value unit and other constant value units in the same group determine whether there is an association through a protection control word;
the fixed value unit and other fixed value units in other groups determine whether to be associated through protecting channel identification codes.
9. The intelligent relay protection constant value auditing system of claim 1 where the set rules include classification by equipment type, equipment parameter constant value, protection control word, and soft press plate.
10. The relay protection constant value intelligent auditing system of claim 1, characterized in that the constant value is a numerical value corresponding to a constant value item.
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| Title |
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| 南东亮等: "新疆电网继电保护定值在线校核平台研究", 《电气技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115033832A (en) * | 2022-06-14 | 2022-09-09 | 国网山东省电力公司临清市供电公司 | Method, system and terminal for automatically checking balance of distribution network power failure maintenance plan |
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|---|---|
| CN113643154B (en) | 2022-10-28 |
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