CN110674158B - Method and system for automatically updating local area for low-voltage user - Google Patents
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Abstract
The invention discloses a method and a system for automatically updating a station area where a low-voltage user is located. In the embodiment of the invention, through double confirmation of the first cutting array and the second cutting array, which low-voltage user is cut can be quickly and accurately judged, and the station area information of the cut low-voltage user can be quickly and automatically updated.
Description
Technical Field
The invention belongs to the technical field of power distribution networks, and particularly relates to a method and a system for automatically updating a station area of a low-voltage user.
Background
A transformer area refers to the power supply range or area of a (single) transformer. In the operation of a distribution network, the load under a low-voltage platform area is too heavy, and a part of the load needs to be cut into the platform area with lighter load. Or a new platform area is built, and the load of the next part of the nearby platform area, which is closer to the new platform area, is cut under the new platform area, so that the line loss is favorably reduced, and the quality of the power voltage of the low-voltage users is favorably improved.
The load is cut between the transformer areas, so that the load of the transformer areas can be reduced, and the overload condition of the transformer areas in the power utilization peak period is reduced. After the cutting of the platform area is completed, constructors are required to record low-voltage users on the line one by one along the cut line, and then recorded platform area information of the users is changed on a marketing system. However, when low-voltage users on the line are recorded one by one through manual line patrol, the condition that the information of the low-voltage user distribution area on the marketing system is not completely changed due to the fact that individual low-voltage users are missed and not recorded frequently occurs, and if the information of the distribution area on the marketing system is not completely changed by the cut-off low-voltage users, the total power consumption of the distribution area of a new access load on the marketing system is much larger than that of the low-voltage users under the distribution area, the excessive parts are classified into line loss, and the line loss of the distribution area is abnormally high.
Line loss is one of the important indexes of the operation of the power system, and inestimable results are caused by line loss abnormity.
Disclosure of Invention
The present invention provides a method and a system for automatically updating a local area for a low-voltage user, so as to solve the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for automatically updating a local area by a low voltage user, including the following steps:
acquiring the station area information of all low-voltage users, wherein all the low-voltage users are all low-voltage users powered by an original station area before cutting, and the station area information at least comprises a user number, a station area number corresponding to the user number and a status word corresponding to the user number;
detecting incoming line voltages of all low-voltage users;
receiving the incoming line voltage according to the detection, and judging whether the incoming line voltage of all the low-voltage users is equal to zero or not;
if the status words are all equal to zero, setting the status words of all the low-voltage users to be a first value;
restoring power supply to the original station area, and detecting the incoming line voltage of all the low-voltage users again;
judging whether the incoming line voltages of all the low-voltage users are zero or not again;
setting the status word of the low-voltage user with the incoming line voltage equal to zero as a second value;
and updating the station area information of the low-voltage users of which the status words are equal to the first value.
As an optional technical solution of the present invention, the acquiring the station area information of all low voltage users further includes:
acquiring the input distribution area information of all low-voltage users;
and storing the station area information of all the low-voltage users.
As an optional technical scheme of the invention, each low-voltage user is provided with an electric energy meter;
the detection of the incoming line voltages of all the low-voltage users specifically comprises the following steps:
and detecting the incoming line voltage of the electric energy meter of each low-voltage user.
As an optional technical solution of the present invention, the setting the status word of the low-voltage user with the incoming line voltage equal to zero as a second value further includes:
recording the user number of the low-voltage user of which the status word is equal to a first value, and storing the user number as a first cut-over array;
modifying the status word of the low voltage user, the status word being equal to a second value, to a first value;
powering off the original station area and restoring power supply to the target station area, and judging whether the incoming line voltage of all the low-voltage users is zero or not;
modifying the status word of the low voltage user for which the incoming line voltage is not equal to zero to a second value;
recording the user number of the low-voltage user of which the state word is equal to a second value, and storing the user number as a second cut-over array;
comparing the first cut array with the second cut array;
and when the first cutover array and the second cutover array are completely equal, updating the zone information of the low-voltage user corresponding to the first cutover array or the second cutover array.
As an optional technical solution of the present invention, the comparing the first cut-and-cut array and the second cut-and-cut array further includes:
checking for discrepancies in the low voltage user when the first cutover array and the second cutover array are not exactly equal.
In a second aspect, the present invention further provides a system for automatically updating a local area by a low voltage user, including:
the acquisition unit is used for acquiring the station area information of all low-voltage users, wherein all the low-voltage users are all low-voltage users supplied with power by an original station area before cutting, and the station area information at least comprises a user number, a station area number corresponding to the user number and a status word corresponding to the user number;
the first detection unit is used for detecting the incoming line voltages of all the low-voltage users;
the receiving and judging unit is used for receiving the incoming line voltage according to the detection and judging whether the incoming line voltage of all the low-voltage users is equal to zero or not;
the first writing unit is used for setting the status words of all the low-voltage users to be a first value if the incoming line voltage is equal to zero;
the second detection unit is used for detecting the incoming line voltage of all the low-voltage users again after the power supply of the original station area is restored;
the judging unit is used for judging whether the incoming line voltages of all the low-voltage users are zero or not;
the second writing unit is used for setting the state word of the low-voltage user with the incoming line voltage equal to zero as a second value;
and the updating unit is used for updating the station area information of the low-voltage users of which the status words are equal to the first value.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
according to the method and the system for automatically updating the local area by the low-voltage user, provided by the embodiment of the invention, when the original area is changed from power failure to power restoration, the incoming line voltage of the low-voltage user is changed, so that the state word is modified, and when the power restoration is carried out, the low-voltage user of which the state word is equal to the first value is judged to be cut, so that the automatic updating of the area information of the cut low-voltage user is finally realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope covered by the contents disclosed in the present invention.
Fig. 1 is a flowchart of a method for automatically updating a local area by a low-voltage user according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Please refer to fig. 1.
In a grid system, the electricity of a low-voltage user is usually supplied by a designated area. Thus, there is one station area for each low voltage user. In the power grid system database, each low-voltage user has a user number, and each platform area also has a unique platform area number, so that the platform area information of each low-voltage user at least comprises the user number and the corresponding platform area number.
It should be noted that, the specific contents of the user number and the station area number may be numbers, characters, letters, or a combination thereof, that is, the specific contents are only unique.
When a low-voltage user is cut from an original station area (collectively referred to as an original station area) to another station area (the station area is a station area with a light load or a newly-built station area, collectively referred to as a target station area), after the cut is finished, the station area number in the station area information of the low-voltage user needs to be changed from the original station area to the station area number of the target station area.
The embodiment provides a method for automatically updating a cell of a low-voltage user, which is used for automatically updating the cell information of the low-voltage user after the cell is cut.
Step 1, before the information of the transformer area is automatically updated, the original transformer area and the target transformer area are powered off, then the incoming line is physically cut off, namely the voltage incoming line end of a low-voltage user needing to be cut off is disconnected from the original transformer area and connected to the target transformer area.
In the method, since the method is only associated with all low-voltage users under the original station area, the method has no relation with whether the target station area has the low-voltage users. Thus, all low voltage users described in this application are referred to as being under the original landing zone, including cutover low voltage users and reserve low voltage users (i.e., not cutover).
And step 2, acquiring the station area information of all low-voltage users, wherein the station area information can be acquired from a power system database.
The station area information includes a status word in addition to the user number and the station area number.
And 3, detecting incoming line voltages of all low-voltage users.
The specific detection method comprises the following steps: incoming line voltages at the electric energy meters of all low-voltage users are detected.
Because the original station area and the target station area are both powered off, the incoming line voltage of all low-voltage users is zero at the moment.
And when the incoming line voltage of all the low-voltage users is zero, modifying the state words in the station area information of all the low-voltage users into a first value. Optionally, the first value is equal to zero. If not, the line needs to be checked.
And step 4, restoring power supply to the original platform area, and then detecting the incoming line voltage of all low-voltage users.
And at the moment, judging whether the incoming line voltage of the low-voltage user is zero, and if not, modifying the state word in the station area information of the corresponding low-voltage user into a second value. Optionally, the second value is equal to one.
And 5, traversing the status words in the station area information of all the low-voltage users, judging whether the status words are equal to the first value, and if so, updating the station area information of the low-voltage users of which the status words are equal to the first value.
Therefore, the method comprises the following specific steps:
step S1, obtaining the zone information of all low-voltage users, wherein all low-voltage users are all low-voltage users powered by the original zone before cutting, and the zone information at least comprises a user number, a zone number corresponding to the user number and a status word corresponding to the user number;
step S2, detecting the incoming line voltage of all the low-voltage users;
step S3, receiving the incoming line voltage according to the detection, and judging whether the incoming line voltage of all the low-voltage users is equal to zero or not;
step S4, if all the status words are equal to zero, setting the status words of all the low-voltage users to be first values;
step S5, restoring power supply to the original station area, and detecting the incoming line voltage of all the low-voltage users again;
step S6, judging whether the incoming line voltage of all the low-voltage users is zero again;
step S7, setting the status word of the low-voltage user with the incoming line voltage equal to zero as a second value;
and step S8, updating the district information of the low-voltage users of which the status words are equal to the first value.
According to the method and the system for automatically updating the local area by the low-voltage user, provided by the embodiment of the invention, when the original area is changed from power failure to power restoration, the incoming line voltage of the low-voltage user is changed, so that the state word is modified, and when the power restoration is carried out, the low-voltage user of which the state word is equal to the first value is judged to be cut, so that the automatic updating of the area information of the cut low-voltage user is finally realized.
Example two
On the basis of the first embodiment, after the step 4, the method further comprises the following steps:
step 6, recording the user number of the low-voltage user with the status word equal to the first value, and storing the user number as a first cut-over array;
step 7, modifying the state word of the low-voltage user with the state word equal to the second value into the first value;
and 8, powering off the original distribution area and restoring power supply to the target distribution area. Judging whether the incoming line voltage of all low-voltage users is zero or not;
and 9, modifying the state word of the low-voltage user with the incoming line voltage not equal to zero into a second value.
Step 10, recording the user number of the low-voltage user of which the state word is equal to the second value at the moment, and storing the user number as a second cut-over array;
and 11, comparing the first cutting array with the second cutting array, and judging whether the first cutting array is completely equal to the second cutting array.
And 12, if the first cutting array is completely equal to the second cutting array, updating the station area information of the corresponding low-voltage user in the first cutting array or the second cutting array. If there are different user numbers between the first cutover array and the second cutover array, which are not exactly equal, i.e. there are differences, the low voltage users of these differences perform fault checks, which include physical wiring checks.
In this embodiment, through the double confirmation of the first cutover array and the second cutover array, which low-voltage user is to be cuted can be quickly and accurately determined, and then the transformer area information of the cuted low-voltage user is quickly and automatically updated.
EXAMPLE III
The embodiment also provides a system for automatically updating the station area where the low-voltage user is located, which is used for executing the above method flow, and specifically includes:
the acquisition unit is used for acquiring the station area information of all low-voltage users, wherein all the low-voltage users are all low-voltage users supplied with power by an original station area before cutting, and the station area information at least comprises a user number, a station area number corresponding to the user number and a status word corresponding to the user number;
the first detection unit is used for detecting the incoming line voltages of all the low-voltage users;
the receiving and judging unit is used for receiving the incoming line voltage according to the detection and judging whether the incoming line voltage of all the low-voltage users is equal to zero or not;
the first writing unit is used for setting the status words of all the low-voltage users to be a first value if the incoming line voltage is equal to zero;
the second detection unit is used for detecting the incoming line voltage of all the low-voltage users again after the power supply of the original station area is restored;
the judging unit is used for judging whether the incoming line voltages of all the low-voltage users are zero or not;
the second writing unit is used for setting the state word of the low-voltage user with the incoming line voltage equal to zero as a second value;
and the updating unit is used for updating the station area information of the low-voltage users of which the status words are equal to the first value.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A method for automatically updating a local area by a low-voltage user is characterized by comprising the following steps:
acquiring the station area information of all low-voltage users, wherein all the low-voltage users are all low-voltage users powered by an original station area before cutting, and the station area information at least comprises a user number, a station area number corresponding to the user number and a status word corresponding to the user number;
detecting incoming line voltages of all low-voltage users;
receiving the incoming line voltage according to the detection, and judging whether the incoming line voltage of all the low-voltage users is equal to zero or not;
if the status words are all equal to zero, setting the status words of all the low-voltage users to be a first value;
restoring power supply to the original station area, and detecting the incoming line voltage of all the low-voltage users again;
judging whether the incoming line voltages of all the low-voltage users are zero or not again;
setting the status word of the low-voltage user with the incoming line voltage equal to zero as a second value;
and updating the station area information of the low-voltage users of which the status words are equal to the first value.
2. The method for automatically updating the local area by the low voltage users according to claim 1, wherein the obtaining of the area information of all the low voltage users further comprises:
acquiring the input distribution area information of all low-voltage users;
and storing the station area information of all the low-voltage users.
3. The method for automatically updating the local area by the low-voltage users according to claim 1, wherein each low-voltage user is provided with an electric energy meter;
the detection of the incoming line voltages of all the low-voltage users specifically comprises the following steps:
and detecting the incoming line voltage of the electric energy meter of each low-voltage user.
4. The method of claim 1, wherein the setting the status word of the low voltage subscriber with the incoming line voltage equal to zero to a second value further comprises:
recording the user number of the low-voltage user of which the status word is equal to a first value, and storing the user number as a first cut-over array;
modifying the status word of the low voltage user, the status word being equal to a second value, to a first value;
the original station area is powered off, the target station area is powered back, and whether the incoming line voltage of all the low-voltage users is zero or not is judged;
modifying the status word of the low voltage user for which the incoming line voltage is not equal to zero to a second value;
recording the user number of the low-voltage user of which the state word is equal to a second value, and storing the user number as a second cut-over array;
comparing the first cut array with the second cut array;
and when the first cutover array and the second cutover array are completely equal, updating the zone information of the low-voltage user corresponding to the first cutover array or the second cutover array.
5. The method for automatically updating the local area by the low-voltage user according to claim 4, wherein the comparing the first cutover array and the second cutover array further comprises:
checking for discrepancies in the low voltage user when the first cutover array and the second cutover array are not exactly equal.
6. A low-voltage user automatic updating local area system is characterized by comprising:
the acquisition unit is used for acquiring the station area information of all low-voltage users, wherein all the low-voltage users are all low-voltage users supplied with power by an original station area before cutting, and the station area information at least comprises a user number, a station area number corresponding to the user number and a status word corresponding to the user number;
the first detection unit is used for detecting the incoming line voltages of all the low-voltage users;
the receiving and judging unit is used for receiving the incoming line voltage according to the detection and judging whether the incoming line voltage of all the low-voltage users is equal to zero or not;
the first writing unit is used for setting the status words of all the low-voltage users to be a first value if the incoming line voltage is equal to zero;
the second detection unit is used for detecting the incoming line voltage of all the low-voltage users again after the power supply of the original station area is restored;
the judging unit is used for judging whether the incoming line voltages of all the low-voltage users are zero or not;
the second writing unit is used for setting the state word of the low-voltage user with the incoming line voltage equal to zero as a second value;
and the updating unit is used for updating the station area information of the low-voltage users of which the status words are equal to the first value.
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