CN111537827A - Online safety and stability analysis system for power grid - Google Patents
Online safety and stability analysis system for power grid Download PDFInfo
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- CN111537827A CN111537827A CN202010468909.5A CN202010468909A CN111537827A CN 111537827 A CN111537827 A CN 111537827A CN 202010468909 A CN202010468909 A CN 202010468909A CN 111537827 A CN111537827 A CN 111537827A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/088—Aspects of digital computing
Abstract
The invention discloses an on-line security and stability analysis system for a power grid, which comprises a data acquisition module, a data processing module, an on-line security analysis module, a network display module and a power grid meteorological disaster processing unit, wherein the data acquisition module, the data processing module, the on-line security analysis module, the network display module and the power grid meteorological disaster processing module are sequentially connected; and the power grid operation data acquisition unit is used for acquiring real-time power grid operation data and power grid fault data when various meteorological disasters occur all the year round. The system enables power grid operation management personnel to more accurately master and timely perform emergency treatment on areas where power grid meteorological disasters may occur, and prevents the power grid from being damaged in large area temporarily due to the meteorological disasters to influence the overall on-line safe and stable operation of the power grid.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to an online safety and stability analysis system for a power grid.
Background
Following the rapid development step of national economy, the power grid development is accelerated, the internal relation is increasingly tight, and important equipment faults can cause large economic loss. The power industry is a weather high-sensitivity and high-demand industry, and the production, construction and operation of the power industry are greatly influenced by environmental weather factors. In recent years, various factors cause weather phenomena such as typhoon, strong convection, heavy fog, high and low temperature, etc. to be frequent, and the weather phenomena are more frequent than the past weather disasters. With the continuous warming of global climate, the increase of abnormal meteorological disasters and the continuous expansion of power grid scale, the frequency and the degree of the influence of the meteorological disasters on the power grid can be increased continuously. Along with the frequent occurrence of meteorological disasters, the examination on the safe and stable operation of the existing interconnected alternating current-direct current hybrid large power grid is more and more severe, and the power failure risk is more and more large. The strong grid can not ignore the influence of extreme weather on the grid. The online safety and stability analysis of the meteorological disaster factors is realized by combining the existing big data environment and increasing the available data information, the early warning and pre-control capacity of the power grid dispatching control system on the meteorological disasters is effectively improved, and the recognition of power grid dispatching personnel on the damage influence of various meteorological disasters on the power grid is enhanced.
At present, the traditional online safety and stability analysis mainly considers the influence of equipment faults under normal weather conditions, and does not effectively consider the risk faults under various meteorological disasters.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an online safety and stability analysis system for a power grid.
The invention relates to an on-line security and stability analysis system for a power grid, which comprises a data acquisition module, a data processing module, an on-line security analysis module, a network display module and a power grid meteorological disaster processing unit, wherein the data acquisition module, the data processing module, the on-line security analysis module, the network display module and the power grid meteorological disaster processing module are sequentially connected; the power grid operation data acquisition unit is used for acquiring real-time power grid operation data and power grid fault data when various meteorological disasters occur all the year round;
the data processing module comprises a power grid operation data processing unit and a meteorological data processing unit, and the meteorological data processing module is used for establishing various meteorological disaster standard databases according to various meteorological disaster data of the past year, comparing the established meteorological disaster standard databases, analyzing and processing real-time collected meteorological data, and performing first prejudgment on the occurrence trend of meteorological disasters;
the power grid operation data processing unit is used for establishing a power grid fault database according to power grid fault data when various meteorological disasters occur in the past year and carrying out second prejudgment on the power grid operation data acquired in real time according to the established power grid fault database;
the online safety analysis module is used for comprehensively evaluating the online safety and stability of the real-time power grid operation state according to the first pre-judgment result and the second pre-judgment result;
the network display module is used for displaying the corresponding various meteorological disaster occurrence trends and the power grid operation ranges affected by various disasters on the network according to the comprehensive evaluation result;
and the power grid meteorological disaster processing module is used for carrying out emergency treatment on the situations of various meteorological disasters possibly occurring on the power grid in advance according to the display result, so that the large-range diffusion is prevented, and the overall safe and stable operation of the power grid is influenced.
Furthermore, the meteorological data acquisition unit further comprises a first storage unit for storing the acquired real-time meteorological data; the power grid operation data acquisition unit further comprises a second storage unit which is used for screening the acquired real-time power grid operation data and storing the available data.
Furthermore, the meteorological data processing unit further comprises a first filtering unit, which is used for filtering the data of the comparison result in the non-meteorological disaster risk range and storing the filtered data; the power grid operation data processing unit further comprises a second filtering unit which is used for filtering the data of the comparison result in the non-power grid fault risk range and storing the filtered data.
Furthermore, the first storage unit and the second storage unit both comprise automatic detection units, and the automatic detection units can automatically screen and delete invalid data more than five years, so that the storage spaces of the respective storage units keep certain limits.
Furthermore, the online analysis module further comprises a third storage unit and a marking unit, wherein the third storage unit is used for storing the comprehensive evaluation result so that a power grid operation manager can call and look up the comprehensive evaluation result at any time; and the marking unit is used for marking the pre-judging result by different colors according to different disaster types.
Furthermore, the meteorological data acquisition unit is respectively connected with the microclimate online monitoring unit, the thunder and lightning positioning unit and the pollution monitoring unit.
Furthermore, the system also comprises an evaluation data issuing module, wherein the evaluation data issuing module is connected with the online safety analysis module and is used for sending the abnormal result of the comprehensive evaluation to the power grid operation management personnel in a short message form.
(1) The power grid online safety and stability analysis system provided by the invention firstly carries out data acquisition, namely acquiring meteorological data through monitoring data such as a microclimate online monitoring device, a thunder positioning device, a pollution monitoring device and the like, and comparing the established meteorological disaster standard database with various meteorological disaster standard databases established by the power grid according to various meteorological disaster data of the past year, carrying out analysis processing on the real-time acquired meteorological data, and firstly carrying out first prejudgment on the occurrence trend of the meteorological disasters; secondly, performing second prejudgment on the power grid operation data collected in real time through a power grid fault database established according to power grid fault data when various meteorological disasters occur in the past year and according to the established power grid fault database; and comprehensively evaluating the online safety and stability of the real-time power grid operation state according to the first pre-judgment result and the second pre-judgment result, and then respectively networking and short message forming the comprehensive evaluation results to inform power grid operation management personnel, so that the power grid operation management personnel can more accurately master and timely carry out emergency treatment on areas where power grid meteorological disasters are likely to occur, and the power grid operation is prevented from being damaged by large areas temporarily when the meteorological disasters come to affect the overall online safety and stability operation of the power grid, so that time is won for power grid operation control and disaster prevention and relief, and the power grid online safety and stability evaluation system has important significance for improving power supply reliability of the power grid and improving disaster prevention and resistance of the power grid.
(2) In the invention, the data acquisition module is connected with the microclimate online monitoring unit, the thunder and lightning positioning unit and the pollution monitoring unit, so that the real-time monitoring, forecasting and power transmission and transformation equipment early warning of typhoon, strong convection, pollution, ice coating and other disastrous weather causing direct disasters such as grid windage deviation, tower collapse and the like and secondary disasters such as pollution flashover, ice coating and the like are realized, and the disaster early warning coverage rate is 100%.
Drawings
Fig. 1 is a schematic diagram of an online safety and stability analysis system of a power grid according to the present invention.
Detailed Description
The invention is further illustrated with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the power grid online security and stability analysis system comprises a data acquisition module, a data processing module, an online security analysis module, a network display module and a power grid meteorological disaster processing unit, wherein the data acquisition module, the data processing module, the online security analysis module, the network display module and the power grid meteorological disaster processing module are sequentially connected, and the data acquisition module comprises a meteorological data acquisition unit and a power grid operation data acquisition unit and is used for acquiring real-time meteorological data and various meteorological disaster data of the past year; the power grid operation data acquisition unit is used for acquiring real-time power grid operation data and power grid fault data when various meteorological disasters occur all the year round;
the data processing module comprises a power grid operation data processing unit and a meteorological data processing unit, and the meteorological data processing module is used for establishing various meteorological disaster standard databases according to various meteorological disaster data in the past year, comparing the established meteorological disaster standard databases, analyzing and processing real-time collected meteorological data, and performing first prejudgment on the occurrence trend of meteorological disasters;
the power grid operation data processing unit is used for establishing a power grid fault database according to power grid fault data when various meteorological disasters occur in the past year and carrying out second prejudgment on the power grid operation data acquired in real time according to the established power grid fault database;
the online safety analysis module is used for comprehensively evaluating the online safety and stability of the real-time power grid operation state according to the first pre-judgment result and the second pre-judgment result;
the network display module is used for displaying the corresponding various meteorological disaster occurrence trends and the power grid operation ranges affected by various disasters on the network according to the comprehensive evaluation result;
and the power grid meteorological disaster processing module is used for carrying out emergency treatment on the situations of various meteorological disasters possibly occurring on the power grid in advance according to the display result, so that the large-range diffusion is prevented, and the overall safe and stable operation of the power grid is influenced.
In this embodiment, the meteorological data acquisition unit further includes a first storage unit, configured to store the acquired real-time meteorological data; the power grid operation data acquisition unit also comprises a second storage unit which is used for screening the acquired real-time power grid operation data and storing available data; the meteorological data processing unit also comprises a first filtering unit which is used for filtering the data of the comparison result in the non-meteorological disaster risk range and storing the filtered data; the power grid operation data processing unit also comprises a second filtering unit which is used for filtering the data of the comparison result in the non-power grid fault risk range and storing the filtered data; the first storage unit and the second storage unit comprise automatic detection units, and the automatic detection units can automatically screen and delete invalid data for more than five years, so that the storage spaces of the respective storage units keep certain limits; the online analysis module also comprises a third storage unit and a marking unit, wherein the third storage unit is used for storing the comprehensive evaluation result so that a power grid operation manager can call and look up the comprehensive evaluation result at any time; the marking unit is used for marking the pre-judging results by different colors according to different disaster types; the meteorological data acquisition unit is respectively connected with the microclimate online monitoring unit, the thunder positioning unit and the pollution monitoring unit; the system also comprises an evaluation data issuing module which is connected with the online safety analysis module and used for sending the abnormal result of the comprehensive evaluation to the power grid operation management personnel in a short message form.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The online security and stability analysis system for the power grid comprises a data acquisition module, a data processing module, an online security analysis module, a network display module and a power grid meteorological disaster processing unit, wherein the data acquisition module, the data processing module, the online security analysis module, the network display module and the power grid meteorological disaster processing module are sequentially connected; the power grid operation data acquisition unit is used for acquiring real-time power grid operation data and power grid fault data when various meteorological disasters occur all the year round;
the data processing module comprises a power grid operation data processing unit and a meteorological data processing unit, and the meteorological data processing module is used for establishing various meteorological disaster standard databases according to various meteorological disaster data of the past year, comparing the established meteorological disaster standard databases, analyzing and processing real-time collected meteorological data, and performing first prejudgment on the occurrence trend of meteorological disasters;
the power grid operation data processing unit is used for establishing a power grid fault database according to power grid fault data when various meteorological disasters occur in the past year and carrying out second prejudgment on the power grid operation data acquired in real time according to the established power grid fault database;
the online safety analysis module is used for comprehensively evaluating the online safety and stability of the real-time power grid operation state according to the first pre-judgment result and the second pre-judgment result;
the network display module is used for displaying the corresponding various meteorological disaster occurrence trends and the power grid operation ranges affected by various disasters on the network according to the comprehensive evaluation result;
and the power grid meteorological disaster processing module is used for carrying out emergency treatment on the situations of various meteorological disasters possibly occurring on the power grid in advance according to the display result, so that the large-range diffusion is prevented, and the overall safe and stable operation of the power grid is influenced.
2. The system of claim 1, wherein the meteorological data acquisition unit further comprises a first storage unit for storing the acquired real-time meteorological data, and the grid operation data acquisition unit further comprises a second storage unit for screening the acquired real-time grid operation data and storing available data.
3. The power grid online safety and stability analysis system according to claim 1, wherein the meteorological data processing unit further comprises a first filtering unit for filtering data of the comparison result in a non-meteorological disaster risk range and storing the filtered data; the power grid operation data processing unit further comprises a second filtering unit which is used for filtering the data of the comparison result in the non-power grid fault risk range and storing the filtered data.
4. The system of claim 2, wherein the first storage unit and the second storage unit each comprise an automatic detection unit, and the automatic detection unit can automatically screen and delete invalid data for more than five years, so that the storage space of each storage unit is kept in a certain limit.
5. The power grid online safety and stability analysis system according to claim 1, wherein the online analysis module further comprises a third storage unit and a marking unit, and the third storage unit is used for storing the comprehensive evaluation result so that a power grid operation manager can call and look up the comprehensive evaluation result at any time; and the marking unit is used for marking the pre-judging result by different colors according to different disaster types.
6. The power grid online safety and stability analysis system according to claim 1, wherein the meteorological data acquisition unit is respectively connected with the microclimate online monitoring unit, the lightning positioning unit and the pollution monitoring unit.
7. The power grid online safety and stability analysis system according to claim 1, further comprising an evaluation data distribution module, wherein the evaluation data distribution module is connected with the online safety analysis module and is used for sending the abnormal result of the comprehensive evaluation to a power grid operation manager in a form of short message.
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| CN202010468909.5A CN111537827A (en) | 2020-05-28 | 2020-05-28 | Online safety and stability analysis system for power grid |
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