CN113452030A - Line voltage regulating method and device, electronic equipment and storage medium - Google Patents
Line voltage regulating method and device, electronic equipment and storage medium Download PDFInfo
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- CN113452030A CN113452030A CN202110838500.2A CN202110838500A CN113452030A CN 113452030 A CN113452030 A CN 113452030A CN 202110838500 A CN202110838500 A CN 202110838500A CN 113452030 A CN113452030 A CN 113452030A
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- 238000013211 curve analysis Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 13
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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
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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
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention discloses a voltage regulating method, a voltage regulating device, electronic equipment and a storage medium of a line, wherein the method comprises the following steps: the load data of the target line is periodically acquired, the load data is subjected to load curve analysis to obtain a load curve, the load curve comprises a working day load curve and a resting day load curve, the load curve is subjected to pressure regulating analysis to obtain a day-ahead pressure regulating curve, the day-ahead pressure regulating curve is generated in a preset period, and pressure regulation is carried out on the basis of a tap gear of a pressure regulator based on the day-ahead pressure regulating curve. According to the invention, the voltage regulation method is carried out based on the day-ahead voltage regulation curve, so that the line tail end voltage is improved, and the economical efficiency of power grid investment is improved.
Description
Technical Field
The invention relates to the field of voltage regulation of a power distribution network line, in particular to a voltage regulation method and device of the line, electronic equipment and a storage medium.
Background
The low voltage at the tail end of a low-voltage line caused by weak power grid foundation, large power supply radius and unstable load is always the current situation problem of the urban power grid. The line diameter, the boosting and the compensation equipment of the original power grid are insufficient, and the normal power utilization of users is seriously influenced, so a series of voltage regulation measures must be taken to ensure that the voltage meets the requirements of the power grid.
Aiming at the problem of low voltage at the tail end of a power grid line, the problem can be solved to a certain extent through a boosting and compensating device, in recent years, along with the continuous improvement of the power demand of users, the power load is continuously increased, the low voltage problem is aggravated, the device is required to be continuously switched, the service life is inevitably shortened, the device replacement period is shortened, and the investment cost of a power grid is improved.
Therefore, in order to ensure that the voltage meets the requirement of the power grid and solve the technical problem that the normal power utilization of users is seriously affected by the existing low-voltage problem, a voltage regulating method of a line needs to be constructed urgently.
Disclosure of Invention
The invention provides a line voltage regulating method, a line voltage regulating device, electronic equipment and a storage medium, and solves the technical problem that the normal power utilization of a user is seriously influenced by the existing low voltage problem.
In a first aspect, the present invention provides a line voltage regulation method, including:
load data of a target line is periodically acquired;
carrying out load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
carrying out voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve; generating the day-ahead voltage regulation curve in a preset period;
and adjusting the tap gear of the voltage regulator to regulate the voltage based on the day-ahead voltage regulation curve.
Optionally, the periodically acquiring load data of the target line includes:
connecting and installing a voltage regulator on the target line; the voltage regulator is provided with a low-voltage distribution detection device;
and periodically acquiring the load data of the target line by using the low-voltage distribution detection device.
Optionally, adjusting a tap position of the voltage regulator to regulate voltage based on the day-ahead voltage regulation curve includes:
judging whether the day-ahead voltage regulation curve has a low voltage mark; if so, adjusting the tap gear of the voltage regulator to regulate the voltage; if not, determining that the voltage regulation is not needed.
Optionally, after adjusting the tap position of the voltage regulator to regulate the voltage based on the day-ahead voltage regulation curve, the method further includes:
comparing based on the load data, and judging whether the low voltage problem of the target line is solved; if so, determining that the pressure regulation is successful; if not, the reactive compensation capacitor is switched to regulate the voltage.
In a second aspect, the present invention provides a voltage regulating device for a line, comprising:
the acquisition module is used for periodically acquiring load data of a target line;
the load module is used for carrying out load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
the analysis module is used for carrying out voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve; generating the day-ahead voltage regulation curve in a preset period;
and the voltage regulating module is used for regulating tap gears of the voltage regulator to regulate voltage based on the day-ahead voltage regulating curve.
Optionally, the obtaining module includes:
the installation submodule is used for connecting and installing a voltage regulator on a target line; the voltage regulator is provided with a low-voltage distribution detection device;
and the acquisition submodule is used for periodically acquiring the load data of the target line by using the low-voltage distribution detection device.
Optionally, the voltage regulation module includes:
the judgment submodule is used for judging whether the voltage regulation curve in the day ahead has a low voltage mark; if yes, executing a regulation submodule; if not, executing the unnecessary submodule;
the adjusting submodule is used for adjusting the tap gear of the voltage regulator to regulate the voltage;
and a submodule is not needed for determining that voltage regulation is not needed.
Optionally, the apparatus further comprises:
the judging module is used for comparing based on the load data and judging whether the low voltage problem of the target line is solved or not; if yes, executing a determining module; if not, executing a switching module;
the determining module is used for determining that the voltage regulation is successful;
and the switching module is used for switching the reactive compensation capacitor to regulate voltage.
In a third aspect, the present application provides an electronic device comprising a processor and a memory, wherein the memory stores computer readable instructions, and the computer readable instructions, when executed by the processor, perform the steps of the method as provided in the first aspect.
In a fourth aspect, the present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the method as provided in the first aspect above.
According to the technical scheme, the invention has the following advantages: the invention provides a line voltage regulation method, which comprises the steps of periodically obtaining load data of a target line, carrying out load curve analysis on the load data to obtain a load curve, wherein the load curve comprises a working day load curve and a resting day load curve, carrying out voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve, generating the day-ahead voltage regulation curve in a preset period, regulating tap gears of a voltage regulator to regulate voltage based on the day-ahead voltage regulation curve, and regulating voltage based on the day-ahead voltage regulation curve.
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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, and 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 these drawings without inventive exercise.
FIG. 1 is a flowchart of a first embodiment of a method for regulating voltage of a line according to the present invention;
FIG. 2 is a flowchart of a second embodiment of a method for regulating voltage of a line according to the present invention;
fig. 3 is a block diagram of an embodiment of a voltage regulator of a circuit according to the present invention.
Detailed Description
The embodiment of the invention provides a line voltage regulating method, a line voltage regulating device, electronic equipment and a storage medium, which are used for solving the technical problem that the normal power utilization of a user is seriously influenced by the existing low-voltage problem.
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 obvious 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.
In a first embodiment, referring to fig. 1, fig. 1 is a flowchart of a first embodiment of a voltage regulating method for a line according to the present invention, including:
step S101, periodically acquiring load data of a target line;
it should be noted that the load data includes data such as three-phase voltage, three-phase current, active power, and reactive power.
Step S102, carrying out load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
the working day load curve is an average load curve of a working day, and the resting day load curve is an average load curve of a resting day.
Step S103, performing voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve; generating the day-ahead voltage regulation curve in a preset period;
and step S104, adjusting tap positions of the voltage regulator to regulate the voltage based on the day-ahead voltage regulation curve.
According to the line voltage regulation method provided by the embodiment of the invention, load data of a target line are periodically acquired, load curve analysis is carried out on the load data to obtain a load curve, the load curve comprises a working day load curve and a resting day load curve, voltage regulation analysis is carried out on the load curve to obtain a day-ahead voltage regulation curve, the day-ahead voltage regulation curve is generated in a preset period, the tap position of a voltage regulator is regulated to regulate voltage based on the day-ahead voltage regulation curve, and the technical problem that the normal power utilization of a user is seriously influenced by the existing low-voltage problem is solved by the method for regulating voltage based on the day-ahead voltage regulation curve, the line terminal voltage is improved, and the economical efficiency of power grid investment is improved.
In a second embodiment, referring to fig. 2, fig. 2 is a flowchart of a voltage regulating method for a line according to the present invention, including:
step S201, a voltage regulator is connected and installed on a target line; the voltage regulator is provided with a low-voltage distribution detection device;
in the embodiment of the invention, the tail end of the line is connected and installed with the voltage regulator, and the voltage regulator is provided with the low-voltage power distribution detection device.
Step S202, periodically acquiring load data of the target line by using the low-voltage distribution detection device;
in the embodiment of the invention, the load data of the target line, including three-phase voltage, three-phase current and the like, active power, reactive power and the like, is periodically acquired, and the acquisition frequency is 15 min/time and 96 times a day.
Step S203, carrying out load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
in the embodiment of the invention, the load data is analyzed to obtain a load curve.
In a specific implementation, the load curves are divided into a working day load curve and a resting day load curve, wherein the working day load curve refers to the average load data of the last 5 working days, and the resting day load curve refers to the average load data of the last 2 working days.
Step S204, performing pressure regulation analysis on the load curve to obtain a day-ahead pressure regulation curve; generating the day-ahead voltage regulation curve in a preset period;
in the embodiment of the invention, the load curve is subjected to voltage regulation analysis to obtain a day-ahead voltage regulation curve, the day-ahead voltage regulation curve is generated in a preset period, and the current time of the day-ahead voltage regulation curve is 12: and the time 00 (in 24 hours) is issued.
Step S205, judging whether the day-ahead voltage regulation curve has a low voltage mark; if so, adjusting the tap gear of the voltage regulator to regulate the voltage; if not, no pressure regulation is needed;
in the embodiment of the invention, the tap position of the voltage regulator is regulated for voltage regulation based on the day-ahead voltage regulation curve, and whether the day-ahead voltage regulation curve has a low-voltage mark is judged; if so, adjusting the tap gear of the voltage regulator to regulate the voltage; if not, no voltage regulation is needed.
Step S206, comparing based on the load data, and judging whether the low voltage problem of the target line is solved; if yes, the pressure regulation is successful; if not, switching the reactive compensation capacitor to regulate the voltage;
in the embodiment of the invention, whether the low voltage problem of the target line after voltage regulation is solved or not is judged according to the load data.
According to the line voltage regulation method provided by the embodiment of the invention, load data of a target line are periodically acquired, load curve analysis is carried out on the load data to obtain a load curve, the load curve comprises a working day load curve and a resting day load curve, voltage regulation analysis is carried out on the load curve to obtain a day-ahead voltage regulation curve, the day-ahead voltage regulation curve is generated in a preset period, the tap position of a voltage regulator is regulated to regulate voltage based on the day-ahead voltage regulation curve, and the technical problem that the normal power utilization of a user is seriously influenced by the existing low-voltage problem is solved by the method for regulating voltage based on the day-ahead voltage regulation curve, the line terminal voltage is improved, and the economical efficiency of power grid investment is improved.
Referring to fig. 3, fig. 3 is a block diagram of a voltage regulating device of a circuit according to an embodiment of the present invention, including:
an obtaining module 301, configured to periodically obtain load data of a target line;
a load module 302, configured to perform load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
the analysis module 303 is configured to perform voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve; generating the day-ahead voltage regulation curve in a preset period;
and the voltage regulating module 304 is used for regulating tap positions of the voltage regulator to regulate voltage based on the day-ahead voltage regulating curve.
In an optional embodiment, the obtaining module 301 includes:
the installation submodule is used for connecting and installing a voltage regulator on a target line; the voltage regulator is provided with a low-voltage distribution detection device;
and the acquisition submodule is used for periodically acquiring the load data of the target line by using the low-voltage distribution detection device.
In an alternative embodiment, the voltage regulation module 304 includes:
the judgment submodule is used for judging whether the voltage regulation curve in the day ahead has a low voltage mark; if yes, executing a regulation submodule; if not, executing the unnecessary submodule;
the adjusting submodule is used for adjusting the tap gear of the voltage regulator to regulate the voltage;
and a submodule is not needed for determining that voltage regulation is not needed.
In an optional embodiment, the apparatus further comprises:
the judging module is used for comparing based on the load data and judging whether the low voltage problem of the target line is solved or not; if yes, executing a determining module; if not, executing a switching module;
the determining module is used for determining that the voltage regulation is successful;
and the switching module is used for switching the reactive compensation capacitor to regulate voltage. .
An embodiment of the present invention further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the voltage regulating method for a line according to any of the above embodiments.
The embodiment of the present invention further provides a computer storage medium, on which a computer program is stored, and when the computer program is executed by the processor, the method for adjusting voltage of a line according to any one of the above embodiments is implemented.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the method, apparatus, electronic device and storage medium disclosed in the present application may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a readable storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned readable storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
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 (10)
1. A method for regulating voltage of a line, comprising:
load data of a target line is periodically acquired;
carrying out load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
carrying out voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve; generating the day-ahead voltage regulation curve in a preset period;
and adjusting the tap gear of the voltage regulator to regulate the voltage based on the day-ahead voltage regulation curve.
2. The line voltage regulation method according to claim 1, wherein the periodically acquiring load data of the target line comprises:
connecting and installing a voltage regulator on the target line; the voltage regulator is provided with a low-voltage distribution detection device;
and periodically acquiring the load data of the target line by using the low-voltage distribution detection device.
3. The method for regulating voltage of a line according to claim 1, wherein adjusting a tap position of a voltage regulator for voltage regulation based on the day-ahead voltage regulation curve comprises:
judging whether the day-ahead voltage regulation curve has a low voltage mark; if so, adjusting the tap gear of the voltage regulator to regulate the voltage; if not, determining that the voltage regulation is not needed.
4. The method for regulating voltage of a line according to any one of claims 1-3, wherein said regulating the tap position of the voltage regulator based on said day-ahead voltage regulation curve further comprises, after the step of regulating the voltage based on said day-ahead voltage regulation curve:
comparing based on the load data, and judging whether the low voltage problem of the target line is solved; if so, determining that the pressure regulation is successful; if not, the reactive compensation capacitor is switched to regulate the voltage.
5. A voltage regulator for a line, comprising:
the acquisition module is used for periodically acquiring load data of a target line;
the load module is used for carrying out load curve analysis on the load data to obtain a load curve; the load curves comprise a working day load curve and a resting day load curve;
the analysis module is used for carrying out voltage regulation analysis on the load curve to obtain a day-ahead voltage regulation curve; generating the day-ahead voltage regulation curve in a preset period;
and the voltage regulating module is used for regulating tap gears of the voltage regulator to regulate voltage based on the day-ahead voltage regulating curve.
6. The voltage regulation device of a line of claim 5, wherein the acquisition module comprises:
the installation submodule is used for connecting and installing a voltage regulator on a target line; the voltage regulator is provided with a low-voltage distribution detection device;
and the acquisition submodule is used for periodically acquiring the load data of the target line by using the low-voltage distribution detection device.
7. The voltage regulator apparatus of line of claim 5, wherein the voltage regulating module comprises:
the judgment submodule is used for judging whether the voltage regulation curve in the day ahead has a low voltage mark; if yes, executing a regulation submodule; if not, executing the unnecessary submodule;
the adjusting submodule is used for adjusting the tap gear of the voltage regulator to regulate the voltage;
and a submodule is not needed for determining that voltage regulation is not needed.
8. The voltage regulator apparatus of any one of claims 5-7, further comprising:
the judging module is used for comparing based on the load data and judging whether the low voltage problem of the target line is solved or not; if yes, executing a determining module; if not, executing a switching module;
the determining module is used for determining that the voltage regulation is successful;
and the switching module is used for switching the reactive compensation capacitor to regulate voltage.
9. An electronic device comprising a processor and a memory, the memory storing computer readable instructions that, when executed by the processor, perform the method of any of claims 1-4.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, performs the method according to any of claims 1-4.
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| CN202110838500.2A CN113452030A (en) | 2021-07-23 | 2021-07-23 | Line voltage regulating method and device, electronic equipment and storage medium |
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| CN202110838500.2A CN113452030A (en) | 2021-07-23 | 2021-07-23 | Line voltage regulating method and device, electronic equipment and storage medium |
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| CN103501021A (en) * | 2013-10-28 | 2014-01-08 | 南京工程学院 | Inverter droop control method capable of achieving secondary frequency modulation and pressure regulation |
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| CN105262109A (en) * | 2015-10-30 | 2016-01-20 | 山东电力研究院 | Method and system for optimizing and analyzing reactive voltage |
| CN105703374A (en) * | 2016-04-26 | 2016-06-22 | 国网安徽省电力公司经济技术研究院 | New-type urbanization-based low voltage treatment measures optimization method |
| CN110334739A (en) * | 2019-06-05 | 2019-10-15 | 深圳供电局有限公司 | Two-stage component load prediction method and device |
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2021
- 2021-07-23 CN CN202110838500.2A patent/CN113452030A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103501021A (en) * | 2013-10-28 | 2014-01-08 | 南京工程学院 | Inverter droop control method capable of achieving secondary frequency modulation and pressure regulation |
| CN104868477A (en) * | 2015-05-29 | 2015-08-26 | 国网电力科学研究院武汉南瑞有限责任公司 | Voltage managing device and method based on movable energy storage power station and on-load voltage regulator |
| CN105262109A (en) * | 2015-10-30 | 2016-01-20 | 山东电力研究院 | Method and system for optimizing and analyzing reactive voltage |
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Application publication date: 20210928 |