CN113972664A - Electric power data complement method and system - Google Patents

Electric power data complement method and system Download PDF

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Publication number
CN113972664A
CN113972664A CN202111268373.3A CN202111268373A CN113972664A CN 113972664 A CN113972664 A CN 113972664A CN 202111268373 A CN202111268373 A CN 202111268373A CN 113972664 A CN113972664 A CN 113972664A
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China
Prior art keywords
load
data
missing
acquiring
main transformer
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CN202111268373.3A
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CN113972664B (en
Inventor
郭明星
沈晓岚
刘盼盼
王晓晖
莫阮清
吴恩琦
戴峥
傅晨
李灏恩
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State Grid Shanghai Electric Power Co Ltd
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State Grid Shanghai Electric Power Co Ltd
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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
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
    • 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
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • 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
    • 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
    • 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
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/20—Information technology specific aspects, e.g. CAD, simulation, modelling, system security

Abstract

The invention relates to a method and a system for complementing electric power data, wherein the system comprises the following steps: s1: acquiring data of the power equipment, and acquiring a load missing point of the power equipment; s2: respectively calculating missing data of different types of the power equipment; s3: complementing missing data of the power equipment; s4: and repeating the steps S1-S3 until the load deficiency point ratio is smaller than the preset threshold. Compared with the prior art, the loss analysis is carried out based on three levels of main transformer load, outgoing line switch load and user load, and the loss is supplemented step by step, so that the integrity of electric power and electric quantity data is improved.

Description

Electric power data complement method and system
Technical Field
The invention relates to the field of power analysis, in particular to a power data complement method and system.
Background
The power load and data of the power need to be checked regularly for completeness, and due to problems of a data source end system, a data interface and the like, when basic data is missing, a certain data analysis method needs to be used for proper data estimation so as to meet basic requirements of statistical analysis on the basic data. In the analysis process, the load needs to be complemented, and the data reliability is improved.
Disclosure of Invention
The present invention is directed to a method and system for supplementing power data to overcome the above-mentioned drawbacks of the prior art.
The purpose of the invention can be realized by the following technical scheme:
a power data complement method comprises the following steps:
s1: acquiring data of the power equipment, and acquiring a load missing point of the power equipment;
s2: respectively calculating missing data of different types of the power equipment;
s3: complementing missing data of the power equipment;
s4: and repeating the steps S1-S3 until the load deficiency point ratio is smaller than the preset threshold.
Preferably, the data types of the power equipment comprise a main transformer load, an outlet switch load and a user load.
Preferably, the step S2 specifically includes:
s21: acquiring load missing point data of the user load according to the current data of the user load;
s22: acquiring load missing point data of the outgoing line switch load according to user load total data corresponding to the outgoing line switch load;
s23: and acquiring load missing point data of the main transformer load according to the total outgoing switch load data corresponding to the main transformer load.
Preferably, the step S3 specifically includes:
s31: supplementing the main transformer load according to the load missing point data of the main transformer load;
s32: supplementing the load of the outgoing line switch according to the load missing point data of the outgoing line switch load;
s33: and supplementing the user load according to the load missing point data of the user load.
Preferably, the load loss point accounts for less than 10% of the threshold value.
An electric power data complement system comprises a missing point acquisition module, a missing data calculation module, a complement module and a threshold module,
the missing point acquisition module is used for acquiring data of the power equipment and acquiring load missing points of the power equipment;
the missing data calculation module is used for calculating the missing data of different types of the power equipment respectively;
the number complementing module is used for complementing missing data of the power equipment;
and the threshold module is used for acquiring and judging whether the load missing point occupation ratio is smaller than a preset threshold, if so, the number complementing is finished, and otherwise, the missing point acquisition module, the missing data calculation module and the number complementing module carry out the number complementing again.
Preferably, the data types of the power equipment comprise a main transformer load, an outlet switch load and a user load.
Preferably, the missing data calculation module includes:
acquiring load missing point data of the user load according to the current data of the user load;
acquiring load missing point data of the outgoing line switch load according to user load total data corresponding to the outgoing line switch load;
and acquiring load missing point data of the main transformer load according to the total outgoing switch load data corresponding to the main transformer load.
Preferably, the complement module comprises:
supplementing the main transformer load according to the load missing point data of the main transformer load;
supplementing the load of the outgoing line switch according to the load missing point data of the outgoing line switch load;
and supplementing the user load according to the load missing point data of the user load.
Preferably, the load loss point accounts for less than 10% of the threshold value.
Compared with the prior art, the invention has the following advantages:
(1) the invention can effectively carry out missing inspection and missing complement on the electric power data, carry out missing analysis based on three levels of main transformer load, outgoing line switch load and user load, and carry out missing complement step by step, thereby improving the integrity of the electric power data;
(2) according to the invention, data completion is carried out layer by layer based on the main transformer load, the outgoing line switch load and the user load, so that the consistency of electric power data of each layer of equipment can be ensured, the basic requirements of statistical analysis on basic data are met, and the data loss ratio is ensured through repeated number supplement.
Drawings
FIG. 1 is a flow chart of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments. Note that the following description of the embodiments is merely a substantial example, and the present invention is not intended to be limited to the application or the use thereof, and is not limited to the following embodiments.
Example 1
A method for complementing power data, as shown in fig. 1, includes the following steps:
s1: the method comprises the steps of obtaining data of the power equipment and obtaining a load missing point of the power equipment, wherein the data types of the power equipment comprise a main transformer load, an outgoing line switch load and a user load.
S2: respectively calculating missing data of different types of the power equipment;
specifically, step S2 specifically includes:
s31: acquiring load missing point data of the user load according to the current data of the user load;
s32: acquiring load missing point data of the outgoing line switch load according to user load total data corresponding to the outgoing line switch load;
s33: and acquiring load missing point data of the main transformer load according to the total outgoing switch load data corresponding to the main transformer load.
S3: and complementing missing data of the power equipment.
Specifically, step S3 specifically includes:
s31: supplementing the main transformer load according to the load missing point data of the main transformer load;
s32: supplementing the load of the outgoing line switch according to the load missing point data of the outgoing line switch load;
s33: and supplementing the user load according to the load missing point data of the user load.
S4: and repeating the steps S1-S3 until the load missing point occupation ratio is smaller than the preset threshold, wherein in the embodiment, the load missing point occupation ratio threshold is smaller than 10%.
Specifically, in this embodiment, the principle of missing load complement is as follows:
1. the load and the current are acquired simultaneously, and the load is obtained through current calculation when the load is absent.
2. The missing load can be estimated by the equal difference between two points in 96-point data of the same day of the same device.
3. From bottom to top: user- > switch- > owner becomes to and from top to bottom: the two modes are respectively executed twice.
4. If the main transformer load is less than the sum of the known data of the carried switches, the main transformer load is not distributed, and the switches are the same.
5. The loss of the double-winding main transformer is not considered, and the high-voltage side load and the low-voltage side load complement each other.
6. If the loads on all sides of the main transformer cannot be obtained, the loads (or the current) are obtained through the switches on all sides.
7. And when the user load is estimated through the switch and the switch load is estimated through the main transformer, the load to be estimated is distributed according to the capacity proportion.
8. When estimating the user load through the switches of 35 kilovolts or more, the load of the first-stage switch is taken, and if the load cannot be obtained, the load is obtained through the upper-stage power switch.
9. The data of 96 points of the same device are respectively complemented.
Example 2
A power data complement system comprises a missing point acquisition module, a missing data calculation module, a complement module and a threshold module, wherein the missing point acquisition module is used for acquiring data of power equipment and acquiring load missing points of the power equipment; the missing data calculation module is used for calculating the missing data of different types of the power equipment respectively; the number complementing module is used for complementing missing data of the power equipment;
the threshold module is used for acquiring and judging whether the load missing point ratio is smaller than a preset threshold, if so, the number complementing is finished, otherwise, the missing point acquisition module, the missing data calculation module and the number complementing module carry out the number complementing again, and the load missing point ratio threshold is smaller than 10%.
The data types of the power equipment comprise a main transformer load, an outlet switch load and a user load.
The missing data calculation module comprises the following steps:
acquiring load missing point data of the user load according to the current data of the user load;
acquiring load missing point data of the outgoing line switch load according to user load total data corresponding to the outgoing line switch load;
and acquiring load missing point data of the main transformer load according to the total outgoing switch load data corresponding to the main transformer load.
The complement module comprises the following steps:
supplementing the main transformer load according to the load missing point data of the main transformer load;
supplementing the load of the outgoing line switch according to the load missing point data of the outgoing line switch load;
and supplementing the user load according to the load missing point data of the user load.
The above embodiments are merely examples and do not limit the scope of the present invention. These embodiments may be implemented in other various manners, and various omissions, substitutions, and changes may be made without departing from the technical spirit of the present invention.

Claims (10)

1. A power data complement method is characterized by comprising the following steps:
s1: acquiring data of the power equipment, and acquiring a load missing point of the power equipment;
s2: respectively calculating missing data of different types of the power equipment;
s3: complementing missing data of the power equipment;
s4: and repeating the steps S1-S3 until the load deficiency point ratio is smaller than the preset threshold.
2. The method according to claim 1, wherein the data types of the electrical equipment comprise main transformer loads, outlet switch loads and consumer loads.
3. The method according to claim 2, wherein the step S2 specifically includes:
s21: acquiring load missing point data of the user load according to the current data of the user load;
s22: acquiring load missing point data of the outgoing line switch load according to user load total data corresponding to the outgoing line switch load;
s23: and acquiring load missing point data of the main transformer load according to the total outgoing switch load data corresponding to the main transformer load.
4. The method according to claim 3, wherein the step S3 specifically comprises:
s31: supplementing the main transformer load according to the load missing point data of the main transformer load;
s32: supplementing the load of the outgoing line switch according to the load missing point data of the outgoing line switch load;
s33: and supplementing the user load according to the load missing point data of the user load.
5. The method according to claim 1, wherein the percentage of load-miss points is less than 10%.
6. A power data complement system is characterized by comprising a missing point acquisition module, a missing data calculation module, a complement module and a threshold module,
the missing point acquisition module is used for acquiring data of the power equipment and acquiring load missing points of the power equipment;
the missing data calculation module is used for calculating the missing data of different types of the power equipment respectively;
the number complementing module is used for complementing missing data of the power equipment;
and the threshold module is used for acquiring and judging whether the load missing point occupation ratio is smaller than a preset threshold, if so, the number complementing is finished, and otherwise, the missing point acquisition module, the missing data calculation module and the number complementing module carry out the number complementing again.
7. The electrical data compensation system of claim 6, wherein the data types of the electrical devices comprise main transformer loads, outlet switch loads, and consumer loads.
8. The power data complement system according to claim 7, wherein said missing data calculation module comprises:
acquiring load missing point data of the user load according to the current data of the user load;
acquiring load missing point data of the outgoing line switch load according to user load total data corresponding to the outgoing line switch load;
and acquiring load missing point data of the main transformer load according to the total outgoing switch load data corresponding to the main transformer load.
9. The power data complement system of claim 8, wherein the complement module comprises:
supplementing the main transformer load according to the load missing point data of the main transformer load;
supplementing the load of the outgoing line switch according to the load missing point data of the outgoing line switch load;
and supplementing the user load according to the load missing point data of the user load.
10. The electric power data complement system of claim 6, wherein said load loss point comprises less than 10% of a threshold.
CN202111268373.3A 2021-10-29 2021-10-29 Electric power data complement method and system Active CN113972664B (en)

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