CN113872334A - Power grid real-time data visualization display method and system - Google Patents
Power grid real-time data visualization display method and system Download PDFInfo
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- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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Abstract
The invention relates to the technical field of power grid data visualization, in particular to a power grid real-time data visualization display method and a power grid real-time data visualization display system. According to the invention, through arranging the interactive visualization unit, the visualization unit transmits the demand instruction to the control unit, so that the control unit controls the model construction unit to construct the corresponding model, thereby effectively ensuring that the system can simulate different demands, meanwhile, the model construction unit carries out preliminary power failure simulation according to the received data to generate the power failure prediction model, the control unit compares the actual power failure region in the region with the power failure prediction model to judge the accuracy of the prediction simulation and renews the model construction unit according to the judgment result, and the simulation accuracy of the system for the power failure prediction model can be gradually increased, thereby effectively improving the visualization efficiency of the system.
Description
Technical Field
The invention relates to the technical field of power grid data visualization, in particular to a power grid real-time data visualization display method and system.
Background
The power distribution network is composed of overhead lines, cables, towers, distribution transformers, isolating switches, reactive power compensators, a plurality of accessory facilities and the like, plays a role in distributing electric energy in the power network, is an important public infrastructure for national economy and social development, and has the advantages that related data of the power network becomes an important data resource along with the continuous promotion of power network construction, the display and analysis of the related data of the power network are favorable for maintaining the safe operation of the power network, and the social benefit is improved.
The collected data operation monitoring platform is an important decision-making basis for popularization of the intelligent electric energy meter, and can be used for carrying out installation, practical analysis, collected electric quantity analysis, early warning statistics of collecting equipment and other various work development analysis and service operation analysis of the state network intelligent electric energy meter, and has a good guiding effect on promotion of the state network intelligent electric energy meter.
Data visualization is a data processing and displaying mode, and rich displaying effects can be provided through data visualization. Data visualization can present relatively boring data in a manner that a user understands and accepts more easily, however, the existing data visualization technology is difficult to meet complex and changeable requirements, cannot display corresponding data according to the requirements of the user, cannot simulate the situation of the data in the near future, and is low in visualization efficiency.
Disclosure of Invention
Therefore, the invention provides a power grid real-time data visualization display method and system, which are used for solving the problem of low visualization efficiency caused by incapability of performing targeted display and simulation aiming at requirements in the prior art.
On one hand, the invention provides a power grid real-time data visualization display method, which comprises the following steps:
step s1, the detection unit periodically collects the values measured by each instrument in the region monitored by the power grid real-time data visualization display system to complete the collection of the power grid data in the region, and after the collection is completed, the detection unit transmits the collected power grid data to the control unit;
step s2, the control unit receives and counts the power grid data transmitted by the detection unit, if the control unit does not receive an instruction for displaying or simulating the analysis designated model, the control unit sends an instruction for constructing the all-terrain monitoring model to the model construction unit and transmits corresponding power grid data to the model construction unit at the same time, and if the control unit receives an instruction for displaying the designated model or simulating the analysis designated model, the control unit transmits the instruction for displaying the designated model or simulating the analysis designated model and the corresponding power grid data to the model construction unit;
step s3, when the model construction unit receives the corresponding instruction and data, the model construction unit constructs the corresponding model according to the data transmitted by the control unit and transmits the model to the visualization unit when the construction is completed;
step s4, the visualization unit receives the model and outputs the model to a corresponding display device to enable a user to visually observe corresponding power grid data;
step s5, the user uses the visualization unit to send the command for displaying the corresponding model to the control unit according to the requirement, and the control unit repeats the steps s 2-s 4 to make the visualization unit output the corresponding model;
and step s6, when the model building unit performs power failure simulation analysis, the model building unit performs preliminary power failure simulation according to the received data to generate a power failure prediction model, detects the actual power failure area in the region by using the corresponding detection period after the simulation is completed to judge the accuracy of the prediction simulation, and renews the model building unit according to the judgment result.
Further, when the visualization unit transmits the expected outage simulation analysis under the human factor to the control unit, the control unit transmits data of point positions where corresponding instruments affected by the human factor are located to the model construction unit, the model construction unit updates a whole-region monitoring model according to the received data and highlights a predicted artificial outage region to complete preliminary outage simulation of a region, a user adjusts the numerical value of the corresponding instrument through the visualization unit to adjust the area of the artificial outage region in the outage prediction model output by the visualization unit to an expected value, and at the moment, the model construction unit generates a preliminary outage simulation model;
when the preliminary power-off simulation of the adjusted region is completed, the control unit controls the detection unit to periodically detect each instrument and transmit data measured by the detection unit to the model construction unit, the model construction unit updates the preliminary power-off simulation model in real time, the control unit calculates the ratio of the area of an expected artificial power-off region corresponding to the preliminary power-off simulation model to the area of an actual artificial power-off region in the updated power-off simulation model and judges the power-off simulation precision of the model construction unit according to the calculation result:
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba =0, the control unit judges that the actual artificial power failure region is a new generation region, the control unit sequentially adjusts electrical parameters of point positions where the instruments are located so as to judge the reason for generating the artificial power failure region, and controls the visualization unit to mark the artificial power failure region and display the reason for generating the artificial power failure region when the judgment is finished;
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba & gt 0 and Ba & lt 0.8, the control unit judges that the power failure simulation precision of the model building unit for the region does not meet the standard, the area of the actual artificial power failure region is larger than the area of the corresponding expected artificial power failure region, the control unit calculates the difference value between the area of the corresponding actual artificial power failure region in the updated power failure simulation model and the area of the corresponding expected artificial power failure region in the preliminary power failure simulation model and judges whether the model building unit is updated according to the position exceeding the area of the expected artificial power failure region or not according to the difference value;
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba & gt 0.8 and Ba & lt 1, the control unit preliminarily judges that the power failure simulation precision of the model building unit for the region meets the standard and detects the position of the region exceeding the area of the expected artificial power failure region so as to further judge whether the power failure simulation precision for the region meets the standard;
if a single actual artificial power failure region exists, the area ratio Ba between the single actual artificial power failure region and an expected artificial power failure region in the preliminary power failure simulation model is more than 1, and the control unit judges that the power failure simulation precision of the model building unit for the region meets the standard.
Further, when the control unit determines that the power failure simulation accuracy for the region does not meet the standard, the control unit calculates a difference Δ Sa between the area of the corresponding actual artificial power failure region in the updated power failure simulation model and the area of the corresponding expected artificial power failure region in the preliminary power failure simulation model, and sets Δ Sa = Sa-Sa0, where Sa is the corresponding actual artificial power failure region in the updated power failure simulation model and Sa0 is the area of the corresponding expected artificial power failure region in the preliminary power failure simulation model;
the control unit is internally provided with a preset area difference value delta Sa0, if delta Sa is less than delta Sa0, the control unit does not update the model building unit according to the position exceeding the area of the expected artificial power failure area, and if delta Sa is more than or equal to delta Sa0, the control unit updates the model building unit according to the position exceeding the area of the expected artificial power failure area.
Further, before the control unit judges whether the model building unit is updated according to the position of the area exceeding the expected artificial power failure area according to the area difference value, the control unit judges whether the preset area difference value delta Sa0 needs to be adjusted according to Sa0, the control unit is further provided with a first preset artificial power failure area Sa1, a second preset artificial power failure area Sa2, a first preset area difference value adjusting coefficient alpha 1 and a second preset area difference value adjusting coefficient alpha 2, wherein Sa1 < Sa2, 1 < alpha 2 < 2,
if Sa0 is less than or equal to Sa1, the control unit does not adjust delta Sa 0;
if Sa1 < Sa0 ≦ Sa2, the control unit adjusts Δ Sa0 using α 1;
if Sa > Sa2, the control unit adjusts Δ Sa0 using α 2;
when the control unit adjusts Δ Sa0 using α i, i =1, 2 is set, and the adjusted preset area difference value is recorded as Δ Sa0 ', and Δ Sa 0' =Δsa0 × α i is set.
Further, when the control unit updates the model building unit according to the position of the area exceeding the expected artificial power failure area, if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure area is greater than 0.5, the control unit controls the model building unit to update, and if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure area is less than or equal to 0.5, the control unit does not control the model building unit to update.
Further, when the visualization unit transmits unexpected power failure simulation analysis under the condition of non-human factors to the control unit, the control unit transmits data of point positions where corresponding instruments are located, influenced by the non-human factors, to the model construction unit, and the model construction unit updates a whole region monitoring model according to the received data and highlights a predicted non-human power failure region to complete preliminary power failure simulation of a region;
when the preliminary power-off simulation of the region is completed, the control unit controls the detection unit to periodically detect each instrument and transmits data measured by the detection unit to the model construction unit, the model construction unit updates the preliminary power-off simulation model in real time, the control unit calculates the area overlapping proportion of an expected non-artificial power-off area corresponding to the preliminary power-off simulation model and an actual non-artificial power-off area in the updated power-off simulation model and judges the power-off simulation precision of the model construction unit according to the calculation result:
if a single actual non-artificial power failure region exists, the area ratio Bb =0 of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model, the control unit judges that the actual non-artificial power failure region is a new generation region and updates the model construction unit;
if a single actual non-artificial power failure region exists, the area ratio Bb of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model is more than 0 and Bb is less than 0.8, the control unit judges that the power failure simulation precision of the model construction unit aiming at the region does not meet the standard and updates the model construction unit;
if a single actual non-artificial power failure region exists, the area ratio Bb of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model is larger than 0.8, and the control unit judges that the power failure simulation precision of the model building unit for the region meets the standard.
Further, when the non-human factor is typhoon, the control unit adjusts the data acquisition period of the detection unit according to the distance D between the typhoon center and the system monitoring region boundary; the control unit is also provided with a first preset distance D1, a second preset distance D2, a first preset period regulating coefficient beta 1, a second preset period regulating coefficient beta 2 and a third preset period regulating coefficient beta 3, wherein D1 is more than D2, beta 3 is more than 0.8 and more than beta 2 and more than beta 1 and less than 0.9;
if D is larger than D2, the control unit does not adjust the data acquisition period of the detection unit;
if D1 is more than D and less than or equal to D2, the control unit adjusts the data acquisition period of the detection unit by using beta 1;
if D is not more than D1, the control unit adjusts the data acquisition period of the detection unit by using beta 2;
if the typhoon center is located in the system monitoring area, the control unit adjusts the data acquisition period of the detection unit by using beta 3;
when the control unit adjusts the data acquisition period of the detection unit by using β j, j =1, 2, 3 is set, and the adjusted data acquisition period is recorded as T ', and T' = T × β j is set, where T is a preset data acquisition period of the detection unit.
Further, when the control unit completes updating the model building unit, the control unit updates the internal data, namely the collection log, to serve as a reference basis for the next simulation.
Further, when the detection unit transmits data to the control unit, the control unit respectively compares the acquired actual values with corresponding preset standard values, if the actual values of a single point location are higher than the corresponding preset standard values, the control unit calculates a value difference value DeltaV and judges the overload level of the point location to which the values belong according to the value difference value; a first preset value difference value delta V1 and a second preset value difference value delta V2 are arranged in the control unit;
if the delta V is less than or equal to the delta V1, the control unit judges that the point location is low-level overload, and the central control unit marks the overloaded point location through the visualization unit;
if delta V1 is less than delta V and is not more than delta V2, the control unit preliminarily judges that the point location is in medium-grade overload, the central control unit detects the weather condition of the area where the point location is located, if the area where the point location is located is in rainy days, snowy days or typhoon days, the central control unit corrects the preset standard numerical value of the point location and compares the actual numerical value of the point location with the corrected preset standard numerical value again after correction so as to further judge whether the point location is overloaded, and if the area where the point location is located is in sunny days or cloudy days, the control unit judges that the point location is in medium-grade overload and marks the overloaded point location through the visualization unit;
if delta V is larger than delta V2, the control unit judges that the point location is high-level overload, and the central control unit marks the overload point location through the visualization unit and sends out a high-level overload alarm.
In another aspect, the present invention provides a power grid real-time data visualization display system, including:
the control unit is used for enabling the corresponding unit to generate a corresponding visual model according to an instruction input by a user into the system and real-time power grid data in a system monitoring area;
the detection unit is connected with each instrument in the area monitored by the system and used for detecting and collecting data in each instrument, and the detection unit is also connected with the control unit and used for transmitting the detected data to the control unit;
the model building unit is connected with the other control units and used for generating corresponding visual models according to the instructions and the corresponding data transmitted by the control units,
and the visualization unit is connected with the model construction unit and used for outputting the visualization model output by the model construction unit, and the visualization unit is also connected with the control unit and used for conveying instructions input by a user.
Compared with the prior art, the interactive visualization unit is arranged, the visualization unit is used for transmitting the demand instruction to the control unit, so that the control unit controls the model building unit to build the corresponding model, the simulation of the system aiming at different demands is effectively guaranteed, meanwhile, the model building unit conducts preliminary power failure simulation according to received data to generate a power failure prediction model, the control unit compares the actual power failure area in the area with the power failure prediction model to judge the accuracy of the prediction simulation and renews the model building unit according to the judgment result, the simulation accuracy of the system aiming at the power failure prediction model can be gradually increased, and the visualization efficiency of the system is effectively improved.
Further, when the control unit controls the model building unit to complete the expected power-off simulation analysis under the artificial factor, the control unit controls the detection unit to periodically detect each instrument and transmit the data measured by the detection unit to the model building unit, the model building unit updates the initial power-off simulation model in real time, the control unit calculates the ratio of the area of the corresponding expected artificial power-off area in the initial power-off simulation model to the area of the actual artificial power-off area in the updated power-off simulation model and determines the power-off simulation precision of the model building unit according to the calculation result, the invention can rapidly and accurately complete the determination of the power-off simulation precision of the model building unit by using the ratio of the areas as a determination reference, and meanwhile, when the control unit determines that the power-off simulation precision of the model building aiming at the area meets the non-standard, the control unit can update the log stored in the control unit in real time to serve as a reference for the next simulation, the system provided by the invention can effectively improve the power-off simulation precision of the model building unit and further improve the visualization efficiency of the system.
Further, when the control unit judges that the outage simulation precision for the area does not meet the standard, the control unit calculates the difference value delta Sa between the area of the corresponding actual artificial outage area in the updated outage simulation model and the area of the corresponding expected artificial outage area in the initial outage simulation model and updates the model construction unit according to whether the position of the area exceeding the expected artificial outage area is located or not according to the delta Sa.
Further, before the control unit judges whether the model building unit is updated according to the position of the area exceeding the expected artificial power failure area according to the area difference value, the control unit judges whether the preset area difference value delta Sa0 needs to be adjusted according to Sa0, the invention adjusts the preset area difference value according to the actual size of the area of the expected artificial power failure area corresponding to the initial power failure simulation model, can effectively avoid the occurrence of judgment deviation caused by the fact that the ratio of the area of the expected artificial power failure area is the same as the area of the actual artificial power failure area in the updated power failure simulation model and the area of the expected artificial power failure area corresponding to the initial power failure simulation model is different, effectively improves the power failure simulation precision of the model building unit, and further improves the visualization efficiency of the system.
Further, when the control unit updates the model building unit according to the position of the area exceeding the expected artificial power failure area, if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure area is greater than 0.5, the control unit controls the model building unit to update, if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure area is less than or equal to 0.5, the control unit does not control the model building unit to update, the invention can further avoid the resource waste caused by the update of the power failure area of the system aiming at the area without power supply equipment by judging whether the model building unit is updated according to the position of the area exceeding the area of the expected artificial power failure area according to the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure area, thereby further improving the visualization efficiency of the system of the invention.
Further, when the control unit controls the model building unit to complete unexpected power-off simulation analysis under the condition of non-artificial factors, the control unit controls the detection unit to periodically detect each instrument and transmits data measured by the detection unit to the model building unit, the model building unit updates the initial power-off simulation model in real time, the control unit calculates the ratio of the area of an expected non-artificial power-off area corresponding to the initial power-off simulation model to the area of an actual non-artificial power-off area in the updated power-off simulation model and judges the power-off simulation precision of the model building unit according to the calculation result, the invention can quickly and accurately complete the judgment of the power-off simulation precision of the model building unit by using the ratio of the areas as a judgment reference, and simultaneously, when the control unit judges that the power-off simulation precision of the model building aiming at the area meets the non-standard, the control unit can update the log stored in the control unit in real time to serve as a reference standard of the next simulation, and the visualization efficiency of the system provided by the invention is further improved while the power failure simulation precision of the model construction unit is effectively improved.
Furthermore, when the non-human factor is typhoon, the control unit adjusts the data acquisition period of the detection unit according to the distance D between the typhoon center and the system monitoring region boundary.
Further, when the detection unit transmits data to the control unit, the control unit respectively compares the acquired actual numerical values with the corresponding preset standard numerical values, if the actual numerical values of a single point location are higher than the corresponding preset standard numerical values, the control unit calculates a numerical difference value delta V and judges the overload level of the point location to which the numerical values belong according to the numerical difference value.
Drawings
FIG. 1 is a block diagram of a power grid real-time data visualization display system according to the present invention;
fig. 2 is a flowchart of a power grid real-time data visualization display method according to the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a block diagram of a power grid real-time data visualization display system according to the present invention. The invention relates to a power grid real-time data visualization display system, which comprises:
the control unit is used for enabling the corresponding unit to generate a corresponding visual model according to an instruction input by a user into the system and real-time power grid data in a system monitoring area;
the detection unit is connected with each instrument in the area monitored by the system and used for detecting and collecting data in each instrument, and the detection unit is also connected with the control unit and used for transmitting the detected data to the control unit;
the model building unit is connected with the other control units and used for generating corresponding visual models according to the instructions and the corresponding data transmitted by the control units,
and the visualization unit is connected with the model construction unit and used for outputting the visualization model output by the model construction unit, and the visualization unit is also connected with the control unit and used for conveying instructions input by a user.
Fig. 2 is a flowchart of a power grid real-time data visualization display method according to the present invention.
The invention discloses a power grid real-time data visualization display method, which comprises the following steps:
step s1, the detection unit periodically collects the values measured by each instrument in the region monitored by the power grid real-time data visualization display system to complete the collection of the power grid data in the region, and after the collection is completed, the detection unit transmits the collected power grid data to the control unit;
step s2, the control unit receives and counts the power grid data transmitted by the detection unit, if the control unit does not receive an instruction for displaying or simulating the analysis designated model, the control unit sends an instruction for constructing the all-terrain monitoring model to the model construction unit and transmits corresponding power grid data to the model construction unit at the same time, and if the control unit receives an instruction for displaying the designated model or simulating the analysis designated model, the control unit transmits the instruction for displaying the designated model or simulating the analysis designated model and the corresponding power grid data to the model construction unit;
step s3, when the model construction unit receives the corresponding instruction and data, the model construction unit constructs the corresponding model according to the data transmitted by the control unit and transmits the model to the visualization unit when the construction is completed;
step s4, the visualization unit receives the model and outputs the model to a corresponding display device to enable a user to visually observe corresponding power grid data;
step s5, the user uses the visualization unit to send the command for displaying the corresponding model to the control unit according to the requirement, and the control unit repeats the steps s 2-s 4 to make the visualization unit output the corresponding model;
and step s6, when the model building unit performs power failure simulation analysis, the model building unit performs preliminary power failure simulation according to the received data to generate a power failure prediction model, detects the actual power failure area in the region by using the corresponding detection period after the simulation is completed to judge the accuracy of the prediction simulation, and renews the model building unit according to the judgment result.
According to the invention, through arranging the interactive visualization unit, the visualization unit transmits the demand instruction to the control unit, so that the control unit controls the model construction unit to construct the corresponding model, thereby effectively ensuring that the system can simulate different demands, meanwhile, the model construction unit carries out preliminary power failure simulation according to the received data to generate the power failure prediction model, the control unit compares the actual power failure region in the region with the power failure prediction model to judge the accuracy of the prediction simulation and renews the model construction unit according to the judgment result, and the simulation accuracy of the system for the power failure prediction model can be gradually increased, thereby effectively improving the visualization efficiency of the system.
Referring to fig. 2, when the visualization unit of the present invention transmits an expected outage simulation analysis under human factors to the control unit, the control unit transmits data of a point location where a corresponding instrument is located, which is affected by the human factors, to the model construction unit, the model construction unit updates a monitoring model of the whole region according to the received data and highlights a predicted artificial outage area to complete a preliminary outage simulation of the region, a user adjusts a value of the corresponding instrument through the visualization unit to adjust an area of the artificial outage area in the outage prediction model output by the visualization unit to an expected value, and at this time, the model construction unit generates a preliminary outage simulation model;
when the preliminary power-off simulation of the adjusted region is completed, the control unit controls the detection unit to periodically detect each instrument and transmit data measured by the detection unit to the model construction unit, the model construction unit updates the preliminary power-off simulation model in real time, the control unit calculates the ratio of the area of an expected artificial power-off region corresponding to the preliminary power-off simulation model to the area of an actual artificial power-off region in the updated power-off simulation model and judges the power-off simulation precision of the model construction unit according to the calculation result:
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba =0, the control unit judges that the actual artificial power failure region is a new generation region, the control unit sequentially adjusts electrical parameters of point positions where the instruments are located so as to judge the reason for generating the artificial power failure region, and controls the visualization unit to mark the artificial power failure region and display the reason for generating the artificial power failure region when the judgment is finished;
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba & gt 0 and Ba & lt 0.8, the control unit judges that the power failure simulation precision of the model building unit for the region does not meet the standard, the area of the actual artificial power failure region is larger than the area of the corresponding expected artificial power failure region, the control unit calculates the difference value between the area of the corresponding actual artificial power failure region in the updated power failure simulation model and the area of the corresponding expected artificial power failure region in the preliminary power failure simulation model and judges whether the model building unit is updated according to the position exceeding the area of the expected artificial power failure region or not according to the difference value;
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba & gt 0.8 and Ba & lt 1, the control unit preliminarily judges that the power failure simulation precision of the model building unit for the region meets the standard and detects the position of the region exceeding the area of the expected artificial power failure region so as to further judge whether the power failure simulation precision for the region meets the standard;
if a single actual artificial power failure region exists, the area ratio Ba between the single actual artificial power failure region and an expected artificial power failure region in the preliminary power failure simulation model is more than 1, and the control unit judges that the power failure simulation precision of the model building unit for the region meets the standard.
According to the invention, the ratio of the areas is used as a judgment reference, so that the judgment on the outage simulation precision of the model construction unit can be rapidly and accurately finished, meanwhile, when the control unit judges that the outage simulation precision of the model construction aiming at the area meets the nonstandard standard, the control unit can update the log stored in the control unit in real time to be used as a reference for next simulation, so that the outage simulation precision of the model construction unit can be effectively improved, and the visualization efficiency of the system is further improved.
Referring to fig. 2, when the control unit of the present invention determines that the power failure simulation accuracy for the region does not meet the standard, the control unit calculates a difference Δ Sa between an area of a corresponding actual artificial power failure region in the updated power failure simulation model and an area of a corresponding expected artificial power failure region in the preliminary power failure simulation model, and sets Δ Sa = Sa-Sa0, where Sa is the area of the corresponding actual artificial power failure region in the updated power failure simulation model, and Sa0 is the area of the corresponding expected artificial power failure region in the preliminary power failure simulation model;
the control unit is internally provided with a preset area difference value delta Sa0, if delta Sa is less than delta Sa0, the control unit does not update the model building unit according to the position exceeding the area of the expected artificial power failure area, and if delta Sa is more than or equal to delta Sa0, the control unit updates the model building unit according to the position exceeding the area of the expected artificial power failure area.
According to the invention, the preset area difference value is set as the judgment basis, so that the resource waste caused by the fact that the system updates the outage region aiming at the region without the power supply equipment can be effectively avoided, and the visualization efficiency of the system is further improved.
Referring to fig. 2, before the control unit determines whether the model building unit is updated according to the position of the area exceeding the expected artificially-cut-off area according to the area difference, the control unit determines whether the preset area difference Δ Sa0 needs to be adjusted according to Sa0, the control unit is further provided with a first preset artificially-cut-off area Sa1, a second preset artificially-cut-off area Sa2, a first preset area difference adjustment coefficient α 1 and a second preset area difference adjustment coefficient α 2, wherein Sa1 < Sa2, 1 < α 2,
if Sa0 is less than or equal to Sa1, the control unit does not adjust delta Sa 0;
if Sa1 < Sa0 ≦ Sa2, the control unit adjusts Δ Sa0 using α 1;
if Sa > Sa2, the control unit adjusts Δ Sa0 using α 2;
when the control unit adjusts Δ Sa0 using α i, i =1, 2 is set, and the adjusted preset area difference value is recorded as Δ Sa0 ', and Δ Sa 0' =Δsa0 × α i is set.
According to the method, the preset area difference value is adjusted according to the actual size of the area of the corresponding expected artificial power failure area in the initial power failure simulation model, the situation that the judgment deviation occurs due to the fact that the ratio of the area of the expected artificial power failure area is the same as the area of the actual artificial power failure area in the updated power failure simulation model and the area of the corresponding expected artificial power failure area in the initial power failure simulation model is different can be effectively avoided, the power failure simulation precision of the model building unit is effectively improved, and meanwhile the visualization efficiency of the system is further improved.
Referring to fig. 2, when the control unit updates the model building unit according to the position of the area exceeding the expected artificial power failure region, if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure region is greater than 0.5, the control unit controls the model building unit to update, and if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power failure region is less than or equal to 0.5, the control unit does not control the model building unit to update.
According to the invention, whether the model building unit is updated according to the position of the meter in the area exceeding the expected artificial power failure area is judged according to the area occupation of the meter in the area exceeding the expected artificial power failure area, so that the resource waste caused by updating the power failure area of the system aiming at the area without power supply equipment can be further avoided, and the visualization efficiency of the system is further improved.
Referring to fig. 2, when the visualization unit transmits unexpected power outage simulation analysis under non-human factors to the control unit, the control unit transmits data of point locations where corresponding instruments are located, which are affected by the non-human factors, to the model construction unit, and the model construction unit updates a whole-region monitoring model according to the received data and highlights a predicted non-human power outage region to complete preliminary power outage simulation of a region;
when the preliminary power-off simulation of the region is completed, the control unit controls the detection unit to periodically detect each instrument and transmits data measured by the detection unit to the model construction unit, the model construction unit updates the preliminary power-off simulation model in real time, the control unit calculates the area overlapping proportion of an expected non-artificial power-off area corresponding to the preliminary power-off simulation model and an actual non-artificial power-off area in the updated power-off simulation model and judges the power-off simulation precision of the model construction unit according to the calculation result:
if a single actual non-artificial power failure region exists, the area ratio Bb =0 of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model, the control unit judges that the actual non-artificial power failure region is a new generation region and updates the model construction unit;
if a single actual non-artificial power failure region exists, the area ratio Bb of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model is more than 0 and Bb is less than 0.8, the control unit judges that the power failure simulation precision of the model construction unit aiming at the region does not meet the standard and updates the model construction unit;
if a single actual non-artificial power failure region exists, the area ratio Bb of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model is larger than 0.8, and the control unit judges that the power failure simulation precision of the model building unit for the region meets the standard.
According to the invention, the ratio of the areas is used as a judgment reference, so that the judgment on the outage simulation precision of the model construction unit can be rapidly and accurately finished, meanwhile, when the control unit judges that the outage simulation precision of the model construction aiming at the area meets the nonstandard standard, the control unit can update the log stored in the control unit in real time to be used as a reference for next simulation, so that the outage simulation precision of the model construction unit can be effectively improved, and the visualization efficiency of the system is further improved.
Referring to fig. 2, when the non-human factor is typhoon, the control unit adjusts the data acquisition period of the detection unit according to the distance D between the typhoon center and the system monitoring region boundary; the control unit is also provided with a first preset distance D1, a second preset distance D2, a first preset period regulating coefficient beta 1, a second preset period regulating coefficient beta 2 and a third preset period regulating coefficient beta 3, wherein D1 is more than D2, beta 3 is more than 0.8 and more than beta 2 and more than beta 1 and less than 0.9;
if D is larger than D2, the control unit does not adjust the data acquisition period of the detection unit;
if D1 is more than D and less than or equal to D2, the control unit adjusts the data acquisition period of the detection unit by using beta 1;
if D is not more than D1, the control unit adjusts the data acquisition period of the detection unit by using beta 2;
if the typhoon center is located in the system monitoring area, the control unit adjusts the data acquisition period of the detection unit by using beta 3;
when the control unit adjusts the data acquisition period of the detection unit by using β j, j =1, 2, 3 is set, and the adjusted data acquisition period is recorded as T ', and T' = T × β j is set, where T is a preset data acquisition period of the detection unit.
According to the invention, the data acquisition cycle of the detection unit is adjusted according to the distance D between the typhoon center and the system monitoring region boundary, so that the detection of the corresponding region in the region can be effectively ensured by selecting the corresponding detection cycle under different conditions, the actual power-off condition of each region in the region can be more accurately determined, and the visualization efficiency of the system is further improved.
Referring to fig. 2, when the control unit of the present invention completes updating the model building unit, the control unit updates the internal data collection log as a reference for the next simulation.
Referring to fig. 2, when the detection unit of the present invention transmits data to the control unit, the control unit compares the collected actual values with the corresponding preset standard values, if the actual values of a single point location are higher than the corresponding preset standard values, the control unit calculates a value difference Δ V and determines the overload level of the point location to which the values belong according to the value difference; a first preset value difference value delta V1 and a second preset value difference value delta V2 are arranged in the control unit;
if the delta V is less than or equal to the delta V1, the control unit judges that the point location is low-level overload, and the central control unit marks the overloaded point location through the visualization unit;
if delta V1 is less than delta V and is not more than delta V2, the control unit preliminarily judges that the point location is in medium-grade overload, the central control unit detects the weather condition of the area where the point location is located, if the area where the point location is located is in rainy days, snowy days or typhoon days, the central control unit corrects the preset standard numerical value of the point location and compares the actual numerical value of the point location with the corrected preset standard numerical value again after correction so as to further judge whether the point location is overloaded, and if the area where the point location is located is in sunny days or cloudy days, the control unit judges that the point location is in medium-grade overload and marks the overloaded point location through the visualization unit;
if delta V is larger than delta V2, the control unit judges that the point location is high-level overload, and the central control unit marks the overload point location through the visualization unit and sends out a high-level overload alarm.
According to the invention, the overload level of the corresponding point location is determined according to the numerical value difference, and the point locations of the corresponding levels are respectively processed in a corresponding mode after the determination is finished, so that the condition of accidents caused by point location overload can be effectively avoided, and the monitoring safety of the system is effectively improved.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A power grid real-time data visualization display method is characterized by comprising the following steps:
step s1, the detection unit periodically collects the values measured by each instrument in the region monitored by the power grid real-time data visualization display system to complete the collection of the power grid data in the region, and after the collection is completed, the detection unit transmits the collected power grid data to the control unit;
step s2, the control unit receives and counts the power grid data transmitted by the detection unit, if the control unit does not receive an instruction for displaying or simulating the analysis designated model, the control unit sends an instruction for constructing the all-terrain monitoring model to the model construction unit and transmits corresponding power grid data to the model construction unit at the same time, and if the control unit receives an instruction for displaying the designated model or simulating the analysis designated model, the control unit transmits the instruction for displaying the designated model or simulating the analysis designated model and the corresponding power grid data to the model construction unit;
step s3, when the model construction unit receives the corresponding instruction and data, the model construction unit constructs the corresponding model according to the data transmitted by the control unit and transmits the model to the visualization unit when the construction is completed;
step s4, the visualization unit receives the model and outputs the model to a corresponding display device to enable a user to visually observe corresponding power grid data;
step s5, the user uses the visualization unit to send the command for displaying the corresponding model to the control unit according to the requirement, and the control unit repeats the steps s 2-s 4 to make the visualization unit output the corresponding model;
and step s6, when the model building unit performs power failure simulation analysis, the model building unit performs preliminary power failure simulation according to the received data to generate a power failure prediction model, detects the actual power failure area in the region by using the corresponding detection period after the simulation is completed to judge the accuracy of the prediction simulation, and renews the model building unit according to the judgment result.
2. The power grid real-time data visualization display method according to claim 1, wherein when the visualization unit transmits an expected outage simulation analysis under human factors to the control unit, the control unit transmits data of a point location where a corresponding instrument is located, which is affected by the human factors, to the model construction unit, the model construction unit updates a whole-region monitoring model according to the received data and highlights a predicted artificial outage region to complete preliminary outage simulation of a region, a user adjusts a value of the corresponding instrument through the visualization unit to adjust an area of the artificial outage region in the outage prediction model output by the visualization unit to an expected value, and at this time, the model construction unit generates a preliminary outage simulation model;
when the preliminary power-off simulation of the adjusted region is completed, the control unit controls the detection unit to periodically detect each instrument and transmit data measured by the detection unit to the model construction unit, the model construction unit updates the preliminary power-off simulation model in real time, the control unit calculates the ratio of the area of an expected artificial power-off region corresponding to the preliminary power-off simulation model to the area of an actual artificial power-off region in the updated power-off simulation model and judges the power-off simulation precision of the model construction unit according to the calculation result:
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba =0, the control unit judges that the actual artificial power failure region is a new generation region, the control unit sequentially adjusts electrical parameters of point positions where the instruments are located so as to judge the reason for generating the artificial power failure region, and controls the visualization unit to mark the artificial power failure region and display the reason for generating the artificial power failure region when the judgment is finished;
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba & gt 0 and Ba & lt 0.8, the control unit judges that the power failure simulation precision of the model building unit for the region does not meet the standard, the area of the actual artificial power failure region is larger than the area of the corresponding expected artificial power failure region, the control unit calculates the difference value between the area of the corresponding actual artificial power failure region in the updated power failure simulation model and the area of the corresponding expected artificial power failure region in the preliminary power failure simulation model and judges whether the model building unit is updated according to the position exceeding the area of the expected artificial power failure region or not according to the difference value;
if a single actual artificial power failure region exists, the area ratio of the single actual artificial power failure region to an expected artificial power failure region in the preliminary power failure simulation model is Ba & gt 0.8 and Ba & lt 1, the control unit preliminarily judges that the power failure simulation precision of the model building unit for the region meets the standard and detects the position of the region exceeding the area of the expected artificial power failure region so as to further judge whether the power failure simulation precision for the region meets the standard;
if a single actual artificial power failure region exists, the area ratio Ba between the single actual artificial power failure region and an expected artificial power failure region in the preliminary power failure simulation model is more than 1, and the control unit judges that the power failure simulation precision of the model building unit for the region meets the standard.
3. The visual display method of the real-time power grid data as claimed in claim 2, wherein when the control unit determines that the power outage simulation precision for the area does not meet the standard, the control unit calculates a difference Δ Sa between the area of the corresponding actual artificial power outage area in the updated power outage simulation model and the area of the corresponding expected artificial power outage area in the preliminary power outage simulation model, and sets Δ Sa = Sa-Sa0, wherein Sa is the corresponding actual artificial power outage area in the updated power outage simulation model, and Sa0 is the area of the corresponding expected artificial power outage area in the preliminary power outage simulation model;
the control unit is internally provided with a preset area difference value delta Sa0, if delta Sa is less than delta Sa0, the control unit does not update the model building unit according to the position exceeding the area of the expected artificial power failure area, and if delta Sa is more than or equal to delta Sa0, the control unit updates the model building unit according to the position exceeding the area of the expected artificial power failure area.
4. The visual display method of the real-time grid data as claimed in claim 3, wherein before the control unit determines whether the model building unit is updated according to the position of the area exceeding the expected artificially-cut-off area according to the area difference, the control unit determines whether the preset area difference Δ Sa0 needs to be adjusted according to Sa0, the control unit is further provided with a first preset artificially-cut-off area Sa1, a second preset artificially-cut-off area Sa2, a first preset area difference adjustment coefficient α 1 and a second preset area difference adjustment coefficient α 2, wherein Sa1 < 2, 1 < α 2 < 2,
if Sa0 is less than or equal to Sa1, the control unit does not adjust delta Sa 0;
if Sa1 < Sa0 ≦ Sa2, the control unit adjusts Δ Sa0 using α 1;
if Sa > Sa2, the control unit adjusts Δ Sa0 using α 2;
when the control unit adjusts Δ Sa0 using α i, i =1, 2 is set, and the adjusted preset area difference value is recorded as Δ Sa0 ', and Δ Sa 0' =Δsa0 × α i is set.
5. The power grid real-time data visualization display method according to claim 3, wherein when the control unit updates the model building unit according to a position where the area exceeding the expected artificial power outage region is located, if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power outage region is greater than 0.5, the control unit controls the model building unit to update, and if the area ratio of the meters included in the detection unit in the area exceeding the expected artificial power outage region is less than or equal to 0.5, the control unit does not control the model building unit to update.
6. The power grid real-time data visualization display method according to claim 2, wherein when the visualization unit transmits unexpected power outage simulation analysis under non-human factors to the control unit, the control unit transmits data of point locations where corresponding instruments are located, which are affected by the non-human factors, to the model construction unit, and the model construction unit updates a whole region monitoring model according to the received data and highlights a predicted non-human power outage region to complete preliminary power outage simulation of a region;
when the preliminary power-off simulation of the region is completed, the control unit controls the detection unit to periodically detect each instrument and transmits data measured by the detection unit to the model construction unit, the model construction unit updates the preliminary power-off simulation model in real time, the control unit calculates the area overlapping proportion of an expected non-artificial power-off area corresponding to the preliminary power-off simulation model and an actual non-artificial power-off area in the updated power-off simulation model and judges the power-off simulation precision of the model construction unit according to the calculation result:
if a single actual non-artificial power failure region exists, the area ratio Bb =0 of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model, the control unit judges that the actual non-artificial power failure region is a new generation region and updates the model construction unit;
if a single actual non-artificial power failure region exists, the area ratio Bb of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model is more than 0 and Bb is less than 0.8, the control unit judges that the power failure simulation precision of the model construction unit aiming at the region does not meet the standard and updates the model construction unit;
if a single actual non-artificial power failure region exists, the area ratio Bb of the single actual non-artificial power failure region to an expected non-artificial power failure region in the preliminary power failure simulation model is larger than 0.8, and the control unit judges that the power failure simulation precision of the model building unit for the region meets the standard.
7. The visual display method of the real-time data of the power grid according to claim 6, wherein when the non-human factor is typhoon, the control unit adjusts a data acquisition period of the detection unit according to a distance D between a typhoon center and a system monitoring region boundary; the control unit is also provided with a first preset distance D1, a second preset distance D2, a first preset period regulating coefficient beta 1, a second preset period regulating coefficient beta 2 and a third preset period regulating coefficient beta 3, wherein D1 is more than D2, beta 3 is more than 0.8 and more than beta 2 and more than beta 1 and less than 0.9;
if D is larger than D2, the control unit does not adjust the data acquisition period of the detection unit;
if D1 is more than D and less than or equal to D2, the control unit adjusts the data acquisition period of the detection unit by using beta 1;
if D is not more than D1, the control unit adjusts the data acquisition period of the detection unit by using beta 2;
if the typhoon center is located in the system monitoring area, the control unit adjusts the data acquisition period of the detection unit by using beta 3;
when the control unit adjusts the data acquisition period of the detection unit by using β j, j =1, 2, 3 is set, and the adjusted data acquisition period is recorded as T ', and T' = T × β j is set, where T is a preset data acquisition period of the detection unit.
8. The visualization display method for the real-time data of the power grid as claimed in claim 6, wherein when the control unit completes the update of the model building unit, the control unit updates the internal data collection log as a reference for the next simulation.
9. The visual display method of the real-time data of the power grid according to claim 1, wherein when the detection unit transmits the data to the control unit, the control unit respectively compares the acquired actual values with corresponding preset standard values, if the actual values of a single point location are higher than the corresponding preset standard values, the control unit calculates a value difference Δ V and judges the overload level of the point location to which the values belong according to the value difference; a first preset value difference value delta V1 and a second preset value difference value delta V2 are arranged in the control unit;
if the delta V is less than or equal to the delta V1, the control unit judges that the point location is low-level overload, and the central control unit marks the overloaded point location through the visualization unit;
if delta V1 is less than delta V and is not more than delta V2, the control unit preliminarily judges that the point location is in medium-grade overload, the central control unit detects the weather condition of the area where the point location is located, if the area where the point location is located is in rainy days, snowy days or typhoon days, the central control unit corrects the preset standard numerical value of the point location and compares the actual numerical value of the point location with the corrected preset standard numerical value again after correction so as to further judge whether the point location is overloaded, and if the area where the point location is located is in sunny days or cloudy days, the control unit judges that the point location is in medium-grade overload and marks the overloaded point location through the visualization unit;
if delta V is larger than delta V2, the control unit judges that the point location is high-level overload, and the central control unit marks the overload point location through the visualization unit and sends out a high-level overload alarm.
10. The utility model provides a visual display system of electric wire netting real-time data which characterized in that includes:
the control unit is used for enabling the corresponding unit to generate a corresponding visual model according to an instruction input by a user into the system and real-time power grid data in a system monitoring area;
the detection unit is connected with each instrument in the area monitored by the system and used for detecting and collecting data in each instrument, and the detection unit is also connected with the control unit and used for transmitting the detected data to the control unit;
the model building unit is connected with the other control units and used for generating corresponding visual models according to the instructions and the corresponding data transmitted by the control units,
and the visualization unit is connected with the model construction unit and used for outputting the visualization model output by the model construction unit, and the visualization unit is also connected with the control unit and used for conveying instructions input by a user.
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