CN110957665B - Transformer substation damaged situation display method and device - Google Patents
Transformer substation damaged situation display method and device Download PDFInfo
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- CN110957665B CN110957665B CN201911091020.3A CN201911091020A CN110957665B CN 110957665 B CN110957665 B CN 110957665B CN 201911091020 A CN201911091020 A CN 201911091020A CN 110957665 B CN110957665 B CN 110957665B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B15/00—Supervisory desks or panels for centralised control or display
Abstract
The invention relates to a method and a device for displaying a damaged condition of a transformer substation, and belongs to the field of transformer substation monitoring. The method comprises the following steps: 1) monitoring the state of primary equipment in each transformer substation, and judging whether the primary equipment in each transformer substation is damaged; for any transformer substation, if primary equipment in the transformer substation is damaged, overlapping the weight coefficients alpha corresponding to the damaged primary equipment, and calculating a fault range index eta of the transformer substation; 2) correcting eta of the corresponding damaged transformer substation according to the correction coefficient gamma corresponding to the damaged transformer substation, and calculating the disaster situation index delta of the damaged transformer substation; 3) each damaged substation is displayed in an image, and the image is output, wherein the larger the δ of the damaged substation is, the more prominent the corresponding area is displayed. The method can display the damage situation of the transformer substation, is convenient for related personnel to quickly position the seriously damaged area when carrying out emergency repair work, and can effectively reduce the influence of disasters.
Description
Technical Field
The invention relates to a method and a device for displaying a damaged condition of a transformer substation, and belongs to the field of transformer substation monitoring.
Background
In the operation process of the transformer substation, the transformer substation is influenced by severe weather, for example, strong wind and rainstorm brought in the typhoon landing process greatly threatens the safe operation of a power grid. Typhoon landing each time causes damage to a power grid and power transmission and transformation equipment in different degrees, and a typhoon period is a dangerous period of cascading failure, large-area power failure accidents are caused for many times, and great economic loss is caused.
The real-time display of the damaged condition of the transformer substation is a necessary condition for related personnel to orderly and efficiently carry out typhoon-resistant work, but a feasible method or device for displaying the damaged condition of the transformer substation in real time is not available in the prior art.
Disclosure of Invention
The invention aims to provide a method and a device for displaying a damaged condition of a transformer substation, and the method and the device are used for solving the problem that the damaged condition of the transformer substation cannot be displayed in real time in the prior art.
In order to achieve the purpose, the invention provides a method for displaying the damaged condition of a transformer substation, which comprises the following steps:
1) monitoring the state of primary equipment in each transformer substation, and judging whether the primary equipment in each transformer substation is damaged; for any transformer substation, if primary equipment in the transformer substation is damaged, overlapping the weight coefficients alpha corresponding to the damaged primary equipment, and calculating a fault range index eta of the transformer substation; the more important the damaged primary equipment is in the transformer substation, the larger the weight coefficient alpha corresponding to the damaged primary equipment is;
2) correcting the fault range index eta of the corresponding damaged transformer substation according to the correction coefficient gamma corresponding to each damaged transformer substation, and calculating the disaster situation index delta of each damaged transformer substation; the more important a damaged substation is in a power supply system, the larger the correction coefficient gamma corresponding to the damaged substation is;
3) and displaying each damaged substation in an image, and outputting the image, wherein the larger the disaster tolerance index delta corresponding to the damaged substation is, the more prominent the area corresponding to the damaged substation is displayed in the image.
In addition, the invention also provides a substation damage situation display device which comprises a data acquisition unit, a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the input end of the data acquisition unit is used for acquiring the state of each primary device in each substation, and the output end of the data acquisition unit is connected with the processor and is used for transmitting the acquired state of each primary device to the processor; the processor, when executing the computer program, implements the above described substation damage live display method.
The beneficial effects are that: based on the state of primary equipment in the transformer substation, effective judgment on the fault range index of the damaged transformer substation is realized; on the basis, the fault range index of the damaged transformer substation is corrected according to the correction coefficient, and the disaster condition index obtained after correction can reflect the damage severity of the damage of the damaged transformer substation; according to the disaster situation index, the damage situation of the transformer substation can be displayed, related personnel can rapidly position the damaged and seriously damaged area when carrying out emergency repair work, and the influence of disasters can be effectively reduced.
Further, in the method and the device for displaying the damaged condition of the transformer substation, the basis for judging damage of the primary equipment is as follows: the primary device is actuated.
The beneficial effects are that: the damage of primary equipment is effectively judged.
Furthermore, in the method and the device for displaying the damaged condition of the transformer substation, the weight coefficient alpha corresponding to the damaged primary equipment is determined according to the voltage level and the load level of the primary equipment.
The beneficial effects are that: the basis for simply and quickly determining the weight coefficient of the primary equipment is provided.
Further, in the method and the device for displaying the damaged condition of the substation, the correction coefficient gamma corresponding to the damaged substation is determined according to the voltage level and the supplied load level of the substation.
The beneficial effects are that: the basis for simply and quickly determining the correction coefficient of the transformer substation is provided.
Further, the method can be used for preparing a novel materialIn the method and the device for displaying the damaged condition of the transformer substation, a formula for calculating the fault range index eta of the transformer substation is as follows:
where n is the number of damaged primary devices in a substation, αiAnd the weight coefficient is corresponding to the ith damaged primary equipment in the transformer substation.
The beneficial effects are that: a specific algorithm for the fault range indicator η is provided.
Further, in the method and the device for displaying the damaged condition of the transformer substation, a formula for calculating the disaster situation index δ of each transformer substation is as follows: δ is γ × η.
The beneficial effects are that: and provides a specific algorithm of the disaster condition index delta.
Further, in the method and the device for displaying the damaged live condition of the transformer substation, the image is a thermodynamic diagram, and the more prominent the display is, the darker the display color is.
The beneficial effects are that: the highlighted display of the damaged transformer substation with great harm is realized.
Drawings
Fig. 1 is a flow chart of a substation damaged live display method in the embodiment of the substation damaged live display method.
Detailed Description
The embodiment of the method for displaying the damaged condition of the transformer substation comprises the following steps:
in order to realize real-time evaluation of the disaster-stricken condition of the substation, the method for displaying the damaged live condition of the substation of the embodiment includes the following steps, as shown in fig. 1:
step 1, monitoring the state of primary equipment in each transformer substation, and judging whether the primary equipment in each transformer substation is damaged; for any transformer substation, if the primary equipment in the transformer substation is damaged, the weight coefficients alpha corresponding to the damaged primary equipment are superposed, and the fault range index eta of the transformer substation is calculated.
In this embodiment, the primary device is a circuit breaker, and if the circuit breaker is operated, it is determined that the circuit breaker is damaged. The weight coefficient alpha of the circuit breaker in the corresponding substation is calculated by the weight coefficient alpha of the circuit breaker in the corresponding substationThe importance determines that the more important a damaged circuit breaker is, the greater its weight factor a is. In the embodiment, the weight coefficient alpha occupied by the circuit breaker in the corresponding transformer substation can be determined according to the voltage grade and the load of the circuit breaker, and the higher the voltage grade and the load grade of the circuit breaker are, the larger the occupied weight coefficient alpha is, and alpha is more than 0 and less than 1. For a certain transformer substation, if n circuit breakers are damaged, the weight coefficient of the first damaged circuit breaker is alpha 1, the weight coefficient of the second damaged circuit breaker is alpha 2, and the weight coefficient of the ith circuit breaker is alpha i, then the fault range index of the transformer substation
And 2, correcting the fault range index eta of the corresponding damaged transformer substation according to the correction coefficient gamma corresponding to each damaged transformer substation, and calculating the disaster situation index delta of each damaged transformer substation as gamma multiplied by eta.
In this embodiment, the correction coefficient γ corresponding to the damaged substation is determined by the importance of the damaged substation in the power supply system, and the more important the damaged substation is, the larger the correction coefficient γ is. In this embodiment, the correction coefficient γ corresponding to the substation is determined according to the voltage level and the load level of the substation, and γ is greater than 0 as the voltage level and the load level of the substation are higher. For example, in this embodiment, disaster situations of three substations are shown, where the correction coefficients corresponding to the three substations are γ 1, γ 2, and γ 3, respectively, and if the voltage level and the load level of the first substation are the maximum, and the second substation is the next lowest, and the third substation is the lowest, then γ 1 > γ 2 > γ 3 > 0.
And 3, displaying each damaged substation in the image, and outputting the image, wherein the larger the disaster condition index delta corresponding to the damaged substation is, the more prominent the area corresponding to the damaged substation is displayed in the image.
In this embodiment, the thermodynamic diagram is used to display the disaster tolerance of each substation, and the larger the value of the disaster tolerance index δ corresponding to the damaged substation is, the darker the color displayed in the corresponding area in the thermodynamic diagram is. As another embodiment, instead of using the thermodynamic diagram, a map indicating the corresponding area of each substation may be output, and the flickering frequency or brightness of each substation area may be changed to highlight a substation with a serious damage.
The application time of the method for displaying the damaged live condition of the transformer substation is not limited, the method can be adjusted according to needs, and is not limited in the process of coming of a disaster. The disaster in the embodiment can be typhoon or other disasters such as thunder and lightning weather.
In this embodiment, the primary device is a circuit breaker, and as another embodiment, it may be a disconnecting switch, an earthing switch, or the like. When the type of the primary equipment is changed, the judgment basis for judging the damage of the primary equipment can be changed according to the actual situation.
In this embodiment, a weight coefficient α is determined according to a voltage class and a load class of a primary device, and a correction coefficient γ is determined according to a voltage class and a load class of a substation, as another embodiment, the weight coefficient α and the correction coefficient γ may also be respectively determined according to other quantities capable of reflecting the importance of the primary device and the substation, for example, the weight coefficient α corresponding to the primary device is determined according to the importance degree of a line connected to the primary device in the substation, or the weight coefficient α corresponding to the primary device is determined according to whether the primary device is in a hub position in a topological diagram of the substation; the correction coefficient gamma of the transformer substation is determined according to whether the transformer substation is in the power supply hub position in a power supply system or not, or is determined according to the attributes (hospitals, schools, residents and the like) of loads carried by the transformer substation, or is determined according to the load flow of a corresponding line of the transformer substation. In this embodiment, the importance of the primary device and the substation is positively correlated with the degree of damage caused by damage to the primary device and the substation, that is, the greater the degree of damage to the primary device or the substation is, the more important the primary device or the substation is.
In the present embodiment, δ ═ γ × η, and as another embodiment, it is also possible to correct δ by another correction method, for example, δ ═ γ + η.
Damaged live condition display device embodiment of transformer substation:
the damaged live condition display device of the transformer substation comprises a data acquisition unit, a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the input end of the data acquisition unit is used for acquiring the state of each primary device in each transformer substation, and the output end of the data acquisition unit is connected with the processor and is used for transmitting the acquired state of each primary device to the processor; the processor, when executing the computer program, implements a substation damaged live display method in a substation damaged live display method embodiment.
The specific implementation process of the method for displaying the damaged live condition of the transformer substation is already described in the embodiment of the method for displaying the damaged live condition of the transformer substation, and redundant description is not repeated here.
Claims (8)
1. A method for displaying damaged situations of a transformer substation is characterized by comprising the following steps:
1) monitoring the state of primary equipment in each transformer substation, and judging whether the primary equipment in each transformer substation is damaged; for any transformer substation, if primary equipment in the transformer substation is damaged, overlapping the weight coefficients alpha corresponding to the damaged primary equipment, and calculating a fault range index eta of the transformer substation; the more important the damaged primary equipment is in the transformer substation, the larger the weight coefficient alpha corresponding to the damaged primary equipment is;
2) correcting the fault range index eta of the corresponding damaged transformer substation according to the correction coefficient gamma corresponding to each damaged transformer substation, and calculating the disaster situation index delta of each damaged transformer substation; the more important a damaged substation is in a power supply system, the larger the correction coefficient gamma corresponding to the damaged substation is;
3) displaying each damaged substation in an image, and outputting the image, wherein in the image, the larger the disaster condition index delta corresponding to the damaged substation is, the more prominent the area corresponding to the damaged substation is displayed;
wherein alpha is more than 0 and less than 1, and gamma is more than 0.
2. The method for displaying the damage condition of the transformer substation according to claim 1, wherein the basis for judging the damage of the primary equipment is as follows: the primary device is actuated.
3. The method for displaying the damaged live condition of the transformer substation according to claim 1, wherein the weight coefficient α corresponding to the damaged primary equipment is determined according to the voltage level and the load level of the primary equipment.
4. The method for displaying the damaged live condition of the substation according to claim 1, wherein the correction coefficient γ corresponding to the damaged substation is determined according to the voltage level and the load level of the substation.
5. The substation damage live display method according to claim 1, wherein the formula for calculating the fault range index η of the substation is as follows:
6. The method for displaying the damaged live condition of the transformer substation according to claim 1, wherein a formula for calculating the disaster situation index δ of each transformer substation is as follows: δ is γ × η.
7. The substation damage live display method according to claim 1, wherein the image is a thermodynamic diagram, and more prominent display means darker display color.
8. A substation damaged live display device comprises a data acquisition unit, a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the input end of the data acquisition unit is used for acquiring the state of each primary device in each substation, and the output end of the data acquisition unit is connected with the processor and is used for transmitting the acquired state of each primary device to the processor; characterized in that the processor, when executing the computer program, implements a substation damaged live display method according to any one of claims 1-7.
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| CN103986237B (en) * | 2014-05-26 | 2016-02-10 | 湖南大学 | A kind of prevention and control of power distribution network and fault processing system |
| CN104063750B (en) * | 2014-06-27 | 2017-07-14 | 国家电网公司 | The Forecasting Methodology of the disaster-stricken influence of power system based on the anti-entropy weight of advanced AHP |
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| CN109471961B (en) * | 2017-11-15 | 2021-01-19 | 许继电气股份有限公司 | Loop display method and device for secondary system of intelligent substation |
| CN108629078A (en) * | 2018-03-23 | 2018-10-09 | 国网浙江省电力有限公司杭州供电公司 | Power transmission network lightning hazards reliability estimation method based on monitoring information |
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