CN108899913B - Real-time monitoring and index automatic decomposition method for power grid section - Google Patents
Real-time monitoring and index automatic decomposition method for power grid section Download PDFInfo
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- CN108899913B CN108899913B CN201810941273.4A CN201810941273A CN108899913B CN 108899913 B CN108899913 B CN 108899913B CN 201810941273 A CN201810941273 A CN 201810941273A CN 108899913 B CN108899913 B CN 108899913B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention provides a real-time monitoring and index automatic decomposition method for a power grid section. After the data are obtained, the statistics of the load section data is realized through the station, and the load section data comprises the following steps: a total index A of section load, a real-time total load B of the section and a maximum value C of the section load. Furthermore, the above load section data is further decomposed into power supply station indexes, and the index values mainly include: the maximum value D of the section load of the power supply station, the distribution proportion E of the section load of the power supply station, the real-time total section load G of the power supply station and the overload H of the power supply station. And finally, displaying the historical and real-time load data of the load section station in a curve form, and providing reference for trend analysis of the load section operation data.
Description
Technical Field
The invention relates to the field of power system monitoring strategies, in particular to a real-time monitoring and index automatic decomposition method for a power grid section.
Background
In the construction process of a power grid, when the network structure of a partial section is incomplete, load section control is required to be carried out for a long time or when temporary equipment is overhauled. The power grid dispatching department is used as a supervision unit for load control, and the section load is required to be controlled not to exceed the limit according to the regulation of the power grid operation requirement. If the operation is performed according to the conventional method, the load index And the corresponding requirement are submitted to an automation worker, And the automation worker establishes the corresponding real-time load section in an SCADA (Supervisory Control And Data Acquisition) system after auditing.
The mode needs to increase a lot of workload of automation personnel, and particularly needs to spend a lot of manpower and material resources during the maintenance of a lot of equipment. Meanwhile, due to the complex and complicated work, it is difficult for an automation worker to establish a real-time load section within a specified time, especially for a power grid in an emergency situation, the real-time load section control is required to be immediately implemented, and the automation worker cannot establish the real-time load section control at all. In addition, in the SCADA system, only load section monitoring of the overall index can be established, the overall index is difficult to be decomposed into units, and load values of load control decomposition of the units need to be calculated through manual analysis.
Based on the above analysis, in order to meet the grid operation requirement, load control is performed within a predetermined time. The technology that the real-time monitoring of the power grid section and the automatic decomposition of the index to each unit are needed to be adopted, the real-time monitoring of the section load and the automatic decomposition of the load control index are carried out, and automation personnel are liberated from complicated and complicated work.
Disclosure of Invention
The invention provides a real-time monitoring and index automatic decomposition method for a power grid section, which realizes the real-time monitoring of section load and the automatic decomposition of load control indexes, ensures that the section load is effectively controlled, and ensures the safe and stable operation of a power grid.
In order to achieve the technical effects, the technical scheme of the invention is as follows:
a real-time monitoring and index automatic decomposition method for a power grid section comprises the following steps:
s1: obtaining data
S2: establishing a load section station;
s3: monitoring the load section in real time;
s4: decomposing the load section index;
s5: and analyzing the section load trend.
Further, the specific process of step S1 is:
the description about the transformer substation and the main transformer station in the SCADA system is obtained by establishing a data interface with the SCAD system, and after a load section is subsequently established, the load data related to the station is obtained from the SCADA system through the station obtained from the SCADA system.
Further, the specific process of step S2 is:
the load profile establishment is composed of a plurality of stations described in step S1, and the load data statistics of the load profile is realized through the calculation among the plurality of stations.
Further, the specific process of step S3 is:
(1) section load total index A: according to the operation requirement of the power grid, the index of the load section needing to be controlled is a manual input value;
(2) section real-time total load B: according to the station established by the load section in the step S2, acquiring data of the station from the SCADA, and realizing real-time updating to achieve the purpose of monitoring the load section in real time;
(3) section load maximum C: and (4) statistically analyzing the highest value of the current 1 established monthly load from the SCADA according to the load section station.
Further, the specific process of step S4 is:
(1) maximum load value D of section of power supply station: carrying out statistical analysis on the highest value of the load of the power supply station in the current 1 month from the SCADA according to the load section station;
(2) section load distribution proportion E of power supply station: the maximum value D of the cross-section load of the power supply station/the sum of the maximum values D of the cross-section loads of the power supply stations;
(3) section load index F of power supply station: the total index A of the section load is the section load distribution proportion E of the power supply station;
(4) real-time total load G of the section of the power supply station: and acquiring the station data of the power supply station from the SCADA according to the station of the S2 load section battle force, and realizing real-time updating to achieve the purpose of monitoring the load section of the power supply station in real time.
(5) Overload H of power supply station: the real-time total load G of the section of the power supply station-the load index F of the section of the power supply station.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that:
(1) the application of real-time monitoring and index automatic decomposition of the load section breaks away from the mode that automation personnel need to establish a load section monitoring interface in an SCADA system, and the index automatic decomposition and real-time monitoring of the load section monitoring can be realized only by simply inputting related data by scheduling personnel, so that the workload of the automation personnel is reduced, and the working efficiency is improved;
(2) the invention provides a powerful support tool for the power grid dispatching personnel to monitor the load section by utilizing the real-time monitoring and automatic index decomposition of the load section, ensures that the control of each single load section is effectively executed, ensures the safe and stable operation of the power grid and improves the reliability of power supply.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1, a method for real-time monitoring and automatic index decomposition for a power grid section includes the following steps:
s1: obtaining data
S2: establishing a load section station;
s3: monitoring the load section in real time;
s4: decomposing the load section index;
s5: and analyzing the section load trend.
The specific process of step S1 is:
the description about the transformer substation and the main transformer station in the SCADA system is obtained by establishing a data interface with the SCAD system, and after a load section is subsequently established, the load data related to the station is obtained from the SCADA system through the station obtained from the SCADA system.
The specific process of step S2 is:
the load profile establishment is composed of a plurality of stations described in step S1, and the load data statistics of the load profile is realized through the calculation among the plurality of stations.
The specific process of step S3 is:
(1) section load total index A: according to the operation requirement of the power grid, the index of the load section needing to be controlled is a manual input value;
(2) section real-time total load B: according to the station established by the load section in the step S2, acquiring data of the station from the SCADA, and realizing real-time updating to achieve the purpose of monitoring the load section in real time;
(3) section load maximum C: and (4) statistically analyzing the highest value of the current 1 established monthly load from the SCADA according to the load section station.
The specific process of step S4 is:
(1) maximum load value D of section of power supply station: carrying out statistical analysis on the highest value of the load of the power supply station in the current 1 month from the SCADA according to the load section station;
(2) section load distribution proportion E of power supply station: the maximum value D of the cross-section load of the power supply station/the sum of the maximum values D of the cross-section loads of the power supply stations;
(3) section load index F of power supply station: the total index A of the section load is the section load distribution proportion E of the power supply station;
(4) real-time total load G of the section of the power supply station: and acquiring the station data of the power supply station from the SCADA according to the station of the S2 load section battle force, and realizing real-time updating to achieve the purpose of monitoring the load section of the power supply station in real time.
(5) Overload H of power supply station: the real-time total load G of the section of the power supply station-the load index F of the section of the power supply station.
The method of the invention acquires the transformer substation and the main transformer station by establishing a data interface with the SCADA system, and acquires the operation data of the load section through the station. After the data are obtained, the statistics of the load section data is realized through the station, and the load section data comprises the following steps: a total index A of section load, a real-time total load B of the section and a maximum value C of the section load. Furthermore, the above load section data is further decomposed into power supply station indexes, and the index values mainly include: the maximum value D of the section load of the power supply station, the distribution proportion E of the section load of the power supply station, the real-time total section load G of the power supply station and the overload H of the power supply station. And finally, displaying the historical and real-time load data of the load section station in a curve form, and providing reference for trend analysis of the load section operation data.
The same or similar reference numerals correspond to the same or similar parts;
the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (3)
1. A real-time monitoring and index automatic decomposition method for a power grid section is characterized by comprising the following steps:
s1: acquiring data:
the method comprises the steps that a data interface is established with an SCAD system, descriptions about transformer stations and main transformer stations in the SCADA system are obtained, and after a load section is established subsequently, load data related to the stations are obtained from the SCADA system through the stations obtained from the SCADA system;
s2: establishing a load section station;
s3: monitoring the load section in real time;
s4: load section index decomposition:
(1) section load total index A: according to the operation requirement of the power grid, the index of the load section needing to be controlled is a manual input value;
(2) section real-time total load B: according to the station established by the load section in the step S2, acquiring data of the station from the SCADA, and realizing real-time updating to achieve the purpose of monitoring the load section in real time;
(3) section load maximum C: carrying out statistical analysis on the highest value of the load in the current 1 month from the SCADA according to the load section station;
s5: and analyzing the section load trend.
2. The method for real-time monitoring and automatic index decomposition of power grid sections according to claim 1, wherein the specific process of the step S2 is as follows:
the load profile establishment is composed of a plurality of stations described in step S1, and the load data statistics of the load profile is realized through the calculation among the plurality of stations.
3. The method for real-time monitoring and automatic index decomposition of power grid sections according to claim 2, wherein the specific process of the step S4 is as follows:
(1) maximum load value D of section of power supply station: carrying out statistical analysis on the highest value of the load of the power supply station in the current 1 month from the SCADA according to the load section station;
(2) section load distribution proportion E of power supply station: the maximum value D of the cross-section load of the power supply station/the sum of the maximum values D of the cross-section loads of the power supply stations;
(3) section load index F of power supply station: the total index A of the section load is the section load distribution proportion E of the power supply station;
(4) real-time total load G of the section of the power supply station: according to the station of the S2 load section battle force, acquiring station data of the power supply station from the SCADA, and realizing real-time updating to achieve the purpose of monitoring the load section of the power supply station in real time;
(5) overload H of power supply station: the real-time total load G of the section of the power supply station-the load index F of the section of the power supply station.
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