CN110703019A - Power consumption abnormity accurate positioning method based on collected information of power transmission line - Google Patents
Power consumption abnormity accurate positioning method based on collected information of power transmission line Download PDFInfo
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- CN110703019A CN110703019A CN201910969295.6A CN201910969295A CN110703019A CN 110703019 A CN110703019 A CN 110703019A CN 201910969295 A CN201910969295 A CN 201910969295A CN 110703019 A CN110703019 A CN 110703019A
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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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- 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a power consumption abnormity accurate positioning method based on collected information of a power transmission line, which comprises the following steps: the line power consumption information is collected through the electric energy meter on the power transmission line, the power consumption information is distinguished and screened according to various power consumption abnormity distinguishing characteristics, after a user selects a screening time period, various power consumption abnormity can be accurately found in the power consumption information in the time period, and then the abnormity is displayed in a classified mode at the front end. The invention has the advantages that the power utilization information processing and the front-end display are rapid, so that a user can process huge electric information for a circuit and accurately position a power utilization abnormal fault point; according to the abnormal type and the corresponding electric energy meter number output by the method, a user can quickly locate the abnormal position of the electric energy meter, so that quick and accurate response processing is carried out, and the electricity utilization of the user is guaranteed.
Description
Technical Field
The invention belongs to the technical field of power abnormity monitoring, and particularly relates to a power utilization abnormity accurate positioning method based on collected information of a power transmission line.
Background
At present, the information acquisition of the power consumption of the power transmission line is very perfect, and the information acquisition of the power transmission line comprises the unit, the transformer area and the transformer substation to which the power transmission line belongs, and the transmission current parameters of the power transmission line, such as voltage, current, freezing readings, acquisition success rate, line loss power and line loss rate.
However, the prior art lacks an effective shortcut for accurately locating a power consumption abnormality of a user electric meter on a certain line.
Disclosure of Invention
The invention aims to provide a power consumption abnormity accurate positioning method based on collected information of a power transmission line, so as to solve the technical problem.
In order to achieve the purpose, the invention adopts the following technical scheme:
the power utilization abnormity accurate positioning method based on the collected information of the power transmission line comprises the following steps: the line power consumption information is collected through the electric energy meter on the power transmission line, the power consumption information is distinguished and screened according to various power consumption abnormity distinguishing characteristics, after a user selects a screening time period, various power consumption abnormity can be accurately found in the power consumption information in the time period, and then the abnormity is displayed in a classified mode at the front end.
Further, the line power utilization information includes: voltage, current, power factor, active information, and frozen readings.
Further, the various electricity utilization abnormality distinguishing features specifically include:
1) the voltage electricity utilization abnormal characteristic is that ①, the voltage value of a certain phase or a plurality of phases is 0, ②, the voltage value of a certain phase is lower than 90% of the rated value, ③, the voltage value of a certain phase is higher than 107% of the rated value;
2) the abnormal characteristic of current power utilization is ①, a certain phase current is negative, ②, the user three-phase current is 0;
3) power factor power consumption abnormal characteristic: the power factor is always lower than 70 and any phase current is greater than 0.3;
4) the active information power utilization abnormity characteristic is that ① reverse active total electric quantity of a non-photovoltaic user increases along with the time, and ② forward active total electric quantity decreases by more than 50% compared with the same period.
Furthermore, the electric energy meter collects 24 integral point data of 0 point to 24 points every day and uploads the data.
Further, the method specifically comprises the following steps:
step 1), a computer acquires the electricity consumption information of the line collected by an electric energy meter on a power transmission line;
step 2), intercepting the line electricity information collected by the electric energy meter in a time period which is set by a user and needs to be analyzed by the computer;
step 3), the computer analyzes the collected line electricity utilization information one by the electric energy meters, and whether the abnormality exists or not is judged; skipping to the step 4 after all the electric energy meters are analyzed;
and 4) the computer outputs the electric energy meter number with the abnormality and the label corresponding to the abnormal type in the step 3) to be analyzed and displayed on the display.
Further, the step 3) specifically comprises:
3.1) voltage power utilization abnormity analysis, namely judging whether the line power utilization information collected by the electric energy meter in the intercepted time has the following conditions that ① phase voltage value or several phase voltage value is 0, ② phase voltage value is lower than 90% of rated value, ③ phase voltage is higher than 107% of the rated value, if the power utilization information collected by a certain electric energy meter comprises one of the conditions, judging that the electric energy meter has voltage power utilization abnormity corresponding to a user;
3.2) current power utilization abnormity analysis, namely judging whether the line power utilization information acquired by the electric energy meter in the intercepted time has the following conditions that ① phase current is negative, ② user three-phase current is 0 by the computer, and if the power utilization information acquired by the electric energy meter comprises one item, judging that the voltage power utilization abnormity exists corresponding to the user by the electric energy meter;
3.3), power factor electricity utilization abnormity analysis: the computer judges whether the following conditions exist in the line power utilization information collected by the electric energy meter within the intercepted time: the power factor is always lower than 70 and any phase current is greater than 0.3; if the electricity utilization information acquired by a certain electric energy meter has the condition, judging that the power factor electricity utilization abnormality exists in the electric energy meter corresponding to the user;
3.4) analyzing the active information power consumption abnormity, namely judging whether the situation that ① reverse active total electric quantity increases along with the time lapse in the line power consumption information collected by the electric energy meter in the intercepted time exists or not by the computer, ② reducing the forward active total electric quantity by more than 50% compared with the same period, and judging that the active information power consumption abnormity exists corresponding to the user by the electric energy meter if the power consumption information collected by the electric energy meter comprises one item.
Further, the method also comprises the following steps: and (4) carrying out on-site maintenance on the electricity condition of the application user according to the abnormal electric energy meter number and the corresponding abnormal type displayed in the step (4).
Compared with the prior art, the invention has the following beneficial effects:
the invention has the advantages that the power utilization information processing and the front-end display are rapid, so that a user can process huge electric information for a circuit and accurately position a power utilization abnormal fault point; according to the abnormal type and the corresponding electric energy meter number output by the method, a user can quickly locate the abnormal position of the electric energy meter, so that quick and accurate response processing is carried out, and the electricity utilization of the user is guaranteed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
The invention provides an accurate positioning method for power consumption abnormity based on collected information of a power transmission line.A computer collects line power consumption information data from one or more stored electric energy meters on the power transmission line in a power consumption information collection system, a marketing service system and a contemporaneous line loss system in a power system, and discriminates and screens the power consumption information collected by the power transmission line according to line loss power consumption abnormity characteristics by using abnormity discrimination rules, so that the problem of difficult positioning of line loss abnormity of the power transmission line is solved, and abnormity is further processed, therefore, the method can effectively and quickly reduce the line loss electric quantity of the power transmission line by using the collected power transmission line information, thereby reducing the line loss rate.
The invention relates to a power consumption abnormity accurate positioning method based on collected information of a power transmission line, which comprises the following steps: the method comprises the steps of collecting line electricity utilization information through an electricity meter number on a power transmission line (taking 24 points of data counted by 0-24 points every day), distinguishing and screening the electricity utilization information according to various electricity utilization abnormity distinguishing characteristics, accurately finding various electricity utilization abnormity in the electricity utilization information in a period of time after a user selects a screening time period, and then displaying the abnormity in a classified mode at the front end.
Each type of electricity utilization information collected by the line comprises: voltage, current, power factor, active information, and frozen readings.
The characteristics for distinguishing the various power utilization abnormalities are as follows:
1.①, one phase or several phases of voltage value is 0;
②, some phase voltage is lower than 90% of rated value;
③, a certain phase voltage is higher than 107% of the rated value;
2.①, the current electricity utilization abnormal characteristic is that a certain phase current is negative;
②, the three-phase current of the user is 0;
3. power factor power utilization anomaly characteristic: the power factor is always lower than 70 and any phase current is greater than 0.3;
4. active information power utilization anomaly feature ①, reverse active total power increases over time (non-photovoltaic users);
②, the positive active total electric quantity is reduced by more than 50% compared with the same period (0, 6 and 12 points are selected);
the various electricity utilization abnormity distinguishing characteristics are the global core, and by converting the line electricity utilization information, in the time period selected by the user request, the time period is analyzed according to the various electricity utilization abnormity distinguishing characteristics to be organized and loaded so as to display various data of the electricity utilization abnormity in the time period requested by the user.
Referring to fig. 1, the method for accurately positioning power consumption abnormality based on the collected information of the power transmission line of the present invention includes the following steps:
step 1), a computer acquires electric energy meter collected line electricity information on a power transmission line (taking 24 points of data counted by 0-24 points every day);
step 2), intercepting the line electricity information collected by the electric energy meter in a time period which is set by a user and needs to be analyzed by the computer;
step 3), the computer analyzes the collected line electricity utilization information one by the electric energy meter, and whether the following abnormity exists or not is judged:
3.1) voltage power utilization abnormity analysis, namely judging whether the line power utilization information collected by the electric energy meter in the intercepted time has the following conditions that ① phase voltage value or several phase voltage value is 0, ② phase voltage value is lower than 90% of rated value, ③ phase voltage is higher than 107% of the rated value, if the power utilization information collected by a certain electric energy meter comprises one of the conditions, judging that the electric energy meter has voltage power utilization abnormity corresponding to a user;
3.2) current power utilization abnormity analysis, namely judging whether the line power utilization information acquired by the electric energy meter in the intercepted time has the following conditions that ① phase current is negative, ② user three-phase current is 0 by the computer, and if the power utilization information acquired by the electric energy meter comprises one item, judging that the voltage power utilization abnormity exists corresponding to the user by the electric energy meter;
3.3), power factor electricity utilization abnormity analysis: the computer judges whether the following conditions exist in the line power utilization information collected by the electric energy meter within the intercepted time: the power factor is always lower than 70 and any phase current is greater than 0.3; if the electricity utilization information acquired by a certain electric energy meter has the condition, judging that the power factor electricity utilization abnormality exists in the electric energy meter corresponding to the user;
3.4) analyzing the active information power consumption abnormity, namely judging whether the situation that ① reverse active total electric quantity is increased along with the time lapse (non-photovoltaic users) exists in the line power consumption information collected by the electric energy meter in the intercepted time by the computer, ② reducing the forward active total electric quantity by more than 50 percent compared with the same period (selecting 0, 6 and 12 points), and if the power consumption information collected by a certain electric energy meter comprises one item, judging that the active information power consumption abnormity exists corresponding to the user by the electric energy meter;
the computer jumps to the next electric energy meter to execute the step 3 and continues to perform the abnormal analysis until all the electric energy meters are analyzed and then jumps to the step 4);
and 4) outputting the electric energy meter number with voltage power utilization abnormity, current power utilization abnormity, power factor power utilization abnormity and active information power utilization abnormity and a label of a corresponding abnormal type by the computer in the step 3), and visually displaying the electric energy meter number and the label in the display.
And (4) the user can quickly locate the abnormal position of the electric energy meter according to the abnormal type output in the step 4) and the corresponding electric energy meter number, so that quick and accurate response processing is carried out, and the electricity utilization of the user is guaranteed.
The invention has the advantages of rapid electricity utilization information processing and front-end display, so that a user can process huge electric information for a circuit and accurately position an electricity utilization abnormal fault point.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (8)
1. Accurate positioning method for power consumption abnormity based on collected information of power transmission line is characterized by comprising the following steps: the line power consumption information is collected through the electric energy meter on the power transmission line, the power consumption information is distinguished and screened according to various power consumption abnormity distinguishing characteristics, after a user selects a screening time period, various power consumption abnormity can be accurately found in the power consumption information in the time period, and then the abnormity is displayed in a classified mode at the front end.
2. The power consumption abnormity accurate positioning method based on the collected information of the power transmission line according to claim 1, wherein the power consumption information of the line comprises: voltage, current, power factor, active information, and frozen readings.
3. The power consumption abnormity accurate positioning method based on the collected information of the power transmission line according to claim 1, wherein the various power consumption abnormity distinguishing characteristics specifically comprise:
1) the voltage electricity utilization abnormal characteristic is that ①, the voltage value of a certain phase or a plurality of phases is 0, ②, the voltage value of a certain phase is lower than 90% of the rated value, ③, the voltage value of a certain phase is higher than 107% of the rated value;
2) the abnormal characteristic of current power utilization is ①, a certain phase current is negative, ②, the user three-phase current is 0;
3) power factor power consumption abnormal characteristic: the power factor is always lower than 70 and any phase current is greater than 0.3;
4) the active information power utilization abnormity characteristic is that ① reverse active total electric quantity of a non-photovoltaic user increases along with the time, and ② forward active total electric quantity decreases by more than 50% compared with the same period.
4. The accurate positioning method for the power consumption abnormity based on the collected information of the power transmission line according to claim 1, characterized in that the electric energy meter collects data of 24 whole points from 0 point to 24 points every day and uploads the data.
5. The power consumption abnormity accurate positioning method based on the collected information of the power transmission line according to claim 1, which is characterized by comprising the following steps:
step 1), a computer acquires the electricity consumption information of the line collected by an electric energy meter on a power transmission line;
step 2), intercepting the line electricity information collected by the electric energy meter in a time period which is set by a user and needs to be analyzed by the computer;
step 3), the computer analyzes the collected line electricity utilization information one by the electric energy meters, and whether the abnormality exists or not is judged; skipping to the step 4 after all the electric energy meters are analyzed;
and 4) the computer outputs the electric energy meter number with the abnormality and the label corresponding to the abnormal type in the step 3) to be analyzed and displayed on the display.
6. The power consumption abnormity accurate positioning method based on the collected information of the power transmission line according to claim 5, wherein the step 3) specifically comprises the following steps:
3.1) voltage power utilization abnormity analysis, namely judging whether the line power utilization information collected by the electric energy meter in the intercepted time has the following conditions that ① phase voltage value or several phase voltage value is 0, ② phase voltage value is lower than 90% of rated value, ③ phase voltage is higher than 107% of the rated value, if the power utilization information collected by a certain electric energy meter comprises one of the conditions, judging that the electric energy meter has voltage power utilization abnormity corresponding to a user;
3.2) current power utilization abnormity analysis, namely judging whether the line power utilization information acquired by the electric energy meter in the intercepted time has the following conditions that ① phase current is negative, ② user three-phase current is 0 by the computer, and if the power utilization information acquired by the electric energy meter comprises one item, judging that the voltage power utilization abnormity exists corresponding to the user by the electric energy meter;
3.3), power factor electricity utilization abnormity analysis: the computer judges whether the following conditions exist in the line power utilization information collected by the electric energy meter within the intercepted time: the power factor is always lower than 70 and any phase current is greater than 0.3; if the electricity utilization information acquired by a certain electric energy meter has the condition, judging that the power factor electricity utilization abnormality exists in the electric energy meter corresponding to the user;
3.4) analyzing the active information power consumption abnormity, namely judging whether the situation that ① reverse active total electric quantity increases along with the time lapse in the line power consumption information collected by the electric energy meter in the intercepted time exists or not by the computer, ② reducing the forward active total electric quantity by more than 50% compared with the same period, and judging that the active information power consumption abnormity exists corresponding to the user by the electric energy meter if the power consumption information collected by the electric energy meter comprises one item.
7. The power consumption abnormity accurate positioning method based on the collected information of the power transmission line according to claim 5, characterized by further comprising the following steps: and (4) carrying out on-site maintenance on the electricity condition of the application user according to the abnormal electric energy meter number and the corresponding abnormal type displayed in the step (4).
8. The method for accurately positioning the power consumption abnormity based on the collected information of the power transmission line according to claim 5, wherein the computer acquires the power consumption information of the line collected by the electric energy meter on the power transmission line through one or more of the power consumption information collection system, the marketing service system and the contemporaneous line loss system.
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