CN111523079A - Method for improving and self-checking load report of dispatching automation system - Google Patents
Method for improving and self-checking load report of dispatching automation system Download PDFInfo
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- CN111523079A CN111523079A CN202010359454.3A CN202010359454A CN111523079A CN 111523079 A CN111523079 A CN 111523079A CN 202010359454 A CN202010359454 A CN 202010359454A CN 111523079 A CN111523079 A CN 111523079A
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- 238000005314 correlation function Methods 0.000 claims description 5
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- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a method for improving and self-checking a load report of a dispatching automation system, which comprises the following steps: based on the expansibility of the report function of the automatic system and a related function formula, regularly generating data required by scheduling every day, every month and every year, and recording the data in a system database; setting an out-of-limit threshold value based on the system database; comparing a formula of active power with a direct sampling value through a trend logic relation according to the out-of-limit threshold value to obtain an error amount of data required by scheduling; and associating an automatic monitoring control and data acquisition system based on the error amount of the data required by the scheduling and the data required by the scheduling, and generating a telemetering self-checking system. In the implementation of the invention, the method effectively improves the reliability of the telemetering data of the power grid automation system, effectively prevents the overload of the voltage and the load, and optimizes the voltage quality.
Description
Technical Field
The invention relates to the technical field of dispatching automation systems, in particular to a method for improving and self-checking a load report of a dispatching automation system.
Background
With the continuous and rapid increase of the scale of the power grid, the requirements on power supply quality, power supply reliability and economic and social benefits are higher and higher, the operation risk prevention and control of the power grid puts higher requirements on the support level of the power secondary system, and the dependence is stronger.
The current master station of the dispatching automation system has severe operation risk; on one hand, the safe and stable operation of the power grid has higher and higher requirements on a system of a dispatching automation system; although the automatic safe operation level is continuously improved, abnormal operation events occur occasionally, and in severe cases, the abnormalities can cause the failure or overload of primary equipment of the power grid or even trip chain, cause the load reduction of the regional power grid, cause general electric power accidents and seriously affect the operation of the power grid; on the other hand, the safety operation risk of a master station of the dispatching automation system is severe; the system failure, misadjustment and miscontrol, abnormal function, parameter misallocation, distribution network blind adjustment, inaccurate telemetering data, auxiliary system facilities and other operation risk points of the dispatching automation system are diversified, and risk factors influencing the stable operation of the system of the dispatching automation system are increasing day by day.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a method for improving and self-checking a load report of a dispatching automation system, which is used for generating a remote measuring self-checking system and outputting accurate remote measuring data.
In order to solve the above technical problem, an embodiment of the present invention provides a method for improving and self-checking a load report of a scheduling automation system, where the method includes:
a method for improving and self-checking a load report of a dispatching automation system is characterized by comprising the following steps:
based on the expansibility of the report function of the automatic system and a related function formula, regularly generating data required by scheduling every day, every month and every year, and recording the data in a system database;
setting an out-of-limit threshold value based on the system database;
comparing a formula of active power with a direct sampling value through a trend logic relation according to the out-of-limit threshold value to obtain an error amount of data required by scheduling;
and associating an automatic monitoring control and data acquisition system based on the error amount of the data required by the scheduling and the data required by the scheduling, and generating a telemetering self-checking system.
Optionally, the formula of the correlation function is specifically as follows:
S*S＝P*P+Q*Q； (1)
where S denotes apparent power, P denotes active power, Q denotes reactive power, U denotes line voltage, and I denotes line current.
Alternatively, substituting the formula (2) into the formula (1) may result in the following formula:
transforming the formula (3) to obtain the following formula:
where S denotes apparent power, P denotes active power, Q denotes reactive power, U denotes line voltage, and I denotes line current.
Optionally, the set out-of-limit threshold is 10%.
Optionally, the comparing, according to the out-of-limit threshold, the formula of the active power with the direct sampling value through the power flow logical relationship to obtain the error amount of the data required by the scheduling includes:
comparing the formula of the active power with the direct sampling value through the trend logic relation according to the out-of-limit threshold value to obtain a comparison result;
automatically detecting the data required by the scheduling by using the comparison result, and generating the data after automatic detection;
and obtaining the error amount of the data required by the scheduling according to the data after the automatic detection.
Optionally, the active power formula is specifically as follows:
the absolute value of active power of main transformer low voltage of the transformer substation is equal to the absolute value of active power of each 10 kilovolt interval.
Optionally, in the comparing the formula of the active power with the direct sampling value, the calculation formula for the comparison is specifically as follows:
active power error ratio ═ ABS (collected active power) -ABS (calculated active power))/ABS (calculated active power).
In order to prevent the formula from being invalid due to the denominator being 0, a small constant X is usually added to the denominator, where X is 0.001 and ABS represents an absolute value.
In the implementation of the invention, the method for improving and self-checking the load report of the dispatching automation system is associated with the automation monitoring control and data acquisition system through the transformation of a correlation function formula, and generates the telemetering self-checking system, so that accurate telemetering data can be output, and the telemetering self-checking system mainly comprises active power and voltage; the dispatcher can monitor the power grid by means of the accurate telemetering data, the accurate telemetering data of active power can prevent power grid accidents such as line overload and the like, the accurate telemetering data of voltage can prevent voltage overload, and the voltage quality can be optimized, so that the power grid outputs qualified voltage to supply users, and more economic benefits are created.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for improving and self-checking a load report of a dispatching automation system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, fig. 1 is a schematic flowchart illustrating a method for improving and self-checking a load report of a dispatching automation system according to an embodiment of the present invention.
As shown in fig. 1, a method for improving and self-checking a load report of a dispatching automation system includes:
s11: based on the expansibility of the report function of the automatic system and a related function formula, regularly generating data required by scheduling every day, every month and every year, and recording the data in a system database;
specifically, the correlation function formula is as follows:
S*S＝P*P+Q*Q； (1)
where S denotes apparent power, P denotes active power, Q denotes reactive power, U denotes line voltage, and I denotes line current.
Wherein substituting the formula (2) into the formula (1) can obtain the following formula:
transforming the formula (3) to obtain the following formula:
and finally obtaining:
where S denotes apparent power, P denotes active power, Q denotes reactive power, U denotes line voltage, and I denotes line current.
S12: setting an out-of-limit threshold value based on the system database;
in the specific implementation process of the invention, the set out-of-limit threshold is 10%.
It should be noted that when the error amount of the data required for scheduling exceeds the set out-of-limit threshold by 10%, the system will alarm, and the data required for scheduling will be displayed in red.
S13: comparing a formula of active power with a direct sampling value through a trend logic relation according to the out-of-limit threshold value to obtain an error amount of data required by scheduling;
in a specific implementation process of the present invention, the comparing, according to the out-of-limit threshold, the formula of the active power with the direct sampling value through the trend logic relationship to obtain the error amount of the data required by the scheduling includes: comparing the formula of the active power with the direct sampling value through the trend logic relation according to the out-of-limit threshold value to obtain a comparison result; automatically detecting the data required by the scheduling by using the comparison result, and generating the data after automatic detection; and obtaining the error amount of the data required by the scheduling according to the data after the automatic detection.
Specifically, the formula of the active power is as follows:
the absolute value of active power of main transformer low voltage of the transformer substation is equal to the absolute value of active power of each 10 kilovolt interval.
Specifically, in the comparison between the active power formula and the direct sampling value, the calculation formula for comparison is specifically as follows:
active power error ratio ═ ABS (collected active power) -ABS (calculated active power))/ABS (calculated active power).
In order to prevent the formula from being invalid due to the denominator being 0, a small constant X is usually added to the denominator, where X is 0.001 and ABS represents an absolute value.
S14: and associating an automatic monitoring control and data acquisition system based on the error amount of the data required by the scheduling and the data required by the scheduling, and generating a telemetering self-checking system.
Specifically, an automatic monitoring control and data acquisition system is associated based on the error amount of the data required by the scheduling and the data required by the scheduling, and a telemetering self-checking system is generated; the telemetering self-checking system outputs telemetering data, wherein the telemetering data mainly comprises active power and voltage; the accurate active power telemetering data can prevent power grid accidents such as line overload and the like; the accurate voltage can prevent voltage overload and can also optimize voltage quality.
In the implementation of the invention, the method for improving and self-checking the load report of the dispatching automation system is associated with the automation monitoring control and data acquisition system through the transformation of a correlation function formula, and generates the telemetering self-checking system, so that accurate telemetering data can be output, and the telemetering self-checking system mainly comprises active power and voltage; the dispatcher can monitor the power grid by means of the accurate telemetering data, the accurate telemetering data of active power can prevent power grid accidents such as line overload and the like, the accurate telemetering data of voltage can prevent voltage overload, and the voltage quality can be optimized, so that the power grid outputs qualified voltage to supply users, and more economic benefits are created.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic or optical disk, or the like.
In addition, the method for improving and self-checking a load report of a dispatching automation system provided by the embodiment of the invention is described in detail, a specific example is adopted to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (7)
1. A method for improving and self-checking a load report of a dispatching automation system is characterized by comprising the following steps:
based on the expansibility of the report function of the automatic system and a related function formula, regularly generating data required by scheduling every day, every month and every year, and recording the data in a system database;
setting an out-of-limit threshold value based on the system database;
comparing a formula of active power with a direct sampling value through a trend logic relation according to the out-of-limit threshold value to obtain an error amount of data required by scheduling;
and associating an automatic monitoring control and data acquisition system based on the error amount of the data required by the scheduling and the data required by the scheduling, and generating a telemetering self-checking system.
2. The method for improving and self-checking a load report of a dispatching automation system as claimed in claim 1, wherein the correlation function formula is as follows:
S*S＝P*P+Q*Q； (1)
where S denotes apparent power, P denotes active power, Q denotes reactive power, U denotes line voltage, and I denotes line current.
3. The method for dispatching automation system load report improvement and self-check as claimed in claim 2, wherein substituting the formula (2) into the formula (1) can obtain the following formula:
transforming the formula (3) to obtain the following formula:
where S denotes apparent power, P denotes active power, Q denotes reactive power, U denotes line voltage, and I denotes line current.
4. The method of claim 1, wherein the threshold is 10%.
5. The method as claimed in claim 1, wherein the comparing the formula of the active power with the direct sampling value through the trend logic relationship according to the out-of-limit threshold to obtain the error amount of the data required for the scheduling includes:
comparing the formula of the active power with the direct sampling value through the trend logic relation according to the out-of-limit threshold value to obtain a comparison result;
automatically detecting the data required by the scheduling by using the comparison result, and generating the data after automatic detection;
and obtaining the error amount of the data required by the scheduling according to the data after the automatic detection.
6. The method for improving and self-checking a load report of a dispatching automation system as claimed in claim 5, wherein the formula of the active power is as follows:
the absolute value of active power of main transformer low voltage of the transformer substation is equal to the absolute value of active power of each 10 kilovolt interval.
7. The method for improving and self-checking a load report of a dispatching automation system as claimed in claim 5, wherein in the comparison of the formula of the active power with the direct sampling value, the calculation formula for the comparison is specifically as follows:
active power error ratio ═ ABS (collected active power) -ABS (calculated active power))/ABS (calculated active power).
In order to prevent the formula from being invalid due to the denominator being 0, a small constant X is usually added to the denominator, where X is 0.001 and ABS represents an absolute value.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113065979A (en) * | 2021-03-22 | 2021-07-02 | 贵州电网有限责任公司 | Load report improving and self-checking method for dispatching automation system |
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Application publication date: 20200811 |