CN111521875A - Method and system for determining grounding impedance of shared tower - Google Patents
Method and system for determining grounding impedance of shared tower Download PDFInfo
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- CN111521875A CN111521875A CN202010195928.5A CN202010195928A CN111521875A CN 111521875 A CN111521875 A CN 111521875A CN 202010195928 A CN202010195928 A CN 202010195928A CN 111521875 A CN111521875 A CN 111521875A
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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Abstract
The invention discloses a method and a system for determining the grounding impedance of a shared tower, and belongs to the technical field of evaluation of the grounding impedance of the shared tower. The method comprises the following steps: acquiring soil parameters of various kinds of soil, and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil; determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters; taking soil parameters, grounding parameters and lightning current parameters as input data, taking grounding impedance as output data, training the input data and the output data, and generating a measurement model; and acquiring the soil parameter, the grounding grid parameter and the lightning current parameter of the target sharing tower, inputting the parameters into the measurement model, and acquiring the grounding impedance of the target sharing tower. The method is visual and simple, can quickly obtain the impact grounding impedance value of the shared tower, and greatly reduces the workload.
Description
Technical Field
The invention relates to the technical field of shared tower grounding impedance evaluation, in particular to a method and a system for determining shared tower grounding impedance.
Background
The tower grounding impedance is one of important parameters for determining whether the lightning protection performance requirements of the shared tower added with the communication base station are met. Because the requirements of the power system and the communication system on the grounding impedance are different, and the grounding conditions of the specific poles and towers which can be installed are different, the size of the grounding impedance of the selected pole and tower needs to be determined quickly, and the effectiveness of the necessary grounding body modification scheme is evaluated.
The existing special calculation software for the ground impedance CDEGS and the like have high requirements on the use environment, great difficulty and high cost.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for determining the ground impedance of a shared tower, including:
acquiring soil parameters of various kinds of soil, and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil;
determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters;
taking soil parameters, grounding parameters and lightning current parameters as input data, taking grounding impedance as output data, training the input data and the output data, and generating a measurement model;
and acquiring the soil parameter, the grounding grid parameter and the lightning current parameter of the target sharing tower, inputting the parameters into the measurement model, and acquiring the grounding impedance of the target sharing tower.
Optionally, the soil parameters of the plurality of soils include:
the resistivity of the homogeneous soil;
horizontal stratification of soil the resistivity and soil thickness of each layer.
Optionally, the parameters of the grounding grid include:
the method comprises the following steps of (1) grounding electrode buried depth value, conductor relative permeability, conductor radius, conductor resistivity, subdivision length and grounding electrode type;
the grounding electrode type comprises: the square box has rays and the rays have a bifurcation type, a single horizontal type and a single vertical type.
Optionally, the lightning current parameters include:
peak current correction factor, point current decay time constant, point current rise time constant, current amplitude and total point current duration;
and collecting the lightning current parameters by preset step length.
The invention also provides a system for determining the grounding impedance of the shared tower, which comprises:
the acquisition unit is used for acquiring soil parameters of various kinds of soil and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil;
the calculation unit is used for determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters;
the training unit is used for training the input data and the output data by taking the soil parameters, the grounding parameters and the lightning current parameters as input data and taking the grounding impedance as output data to generate a measurement model;
and the measuring unit is used for acquiring the soil parameters, the grounding grid parameters and the lightning current parameters of the target sharing tower, inputting the parameters into the measuring model and acquiring the grounding impedance of the target sharing tower.
Optionally, the soil parameters of the plurality of soils include:
the resistivity of the homogeneous soil;
horizontal stratification of soil the resistivity and soil thickness of each layer.
Optionally, the parameters of the grounding grid include:
the method comprises the following steps of (1) grounding electrode buried depth value, conductor relative permeability, conductor radius, conductor resistivity, subdivision length and grounding electrode type;
the grounding electrode type comprises: the square box has rays and the rays have a bifurcation type, a single horizontal type and a single vertical type.
Optionally, the lightning current parameters include:
peak current correction factor, point current decay time constant, point current rise time constant, current amplitude and total point current duration;
and collecting the lightning current parameters by preset step length.
The method is visual and simple, can quickly obtain the impact grounding impedance value of the shared tower, and greatly reduces the workload.
Drawings
FIG. 1 is a flow chart of a method for determining the ground impedance of a shared tower according to the present invention;
fig. 2 is a block diagram of a system for determining the ground impedance of a shared tower according to the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The invention provides a method for determining the grounding impedance of a shared tower, as shown in fig. 1, comprising the following steps:
acquiring soil parameters of various kinds of soil, and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil;
determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters;
taking soil parameters, grounding parameters and lightning current parameters as input data, taking grounding impedance as output data, training the input data and the output data, and generating a measurement model;
and acquiring the soil parameter, the grounding grid parameter and the lightning current parameter of the target sharing tower, inputting the parameters into the measurement model, and acquiring the grounding impedance of the target sharing tower.
Soil parameters for a variety of soils including:
the resistivity of the homogeneous soil;
horizontal stratification of soil the resistivity and soil thickness of each layer.
Grounding grid parameters including:
the method comprises the following steps of (1) grounding electrode buried depth value, conductor relative permeability, conductor radius, conductor resistivity, subdivision length and grounding electrode type;
a ground electrode type comprising: the square box has rays and the rays have a bifurcation type, a single horizontal type and a single vertical type.
The parameters of the square frame with ray and the ray with bifurcation type include: inputting X-axis coordinates and Y-axis coordinates of the upper right corner, the length of a vertical ray, the length of the ray, the bifurcation length, the angles of the rays 1, 2 and 3 and the bifurcation angle of the rays;
the single horizontal profile parameters include: x and Y axis coordinates of the top right coordinate generally have the origin as the origin);
the parameters of the single vertical type include: vertical ray length (typically with the vertex as the origin);
lightning current parameters comprising:
a peak current correction factor A, a current decay time constant T1, a current rise time constant T2, a current amplitude and a total trickle duration;
and collecting the lightning current parameters by preset step length.
The invention also proposes a system 200 for determining the ground impedance of a shared tower, comprising:
the acquisition unit 201 is used for acquiring soil parameters of various kinds of soil, and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil;
the calculating unit 202 is used for determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters;
the training unit 203 is used for training the input data and the output data by taking the soil parameters, the grounding parameters and the lightning current parameters as input data and taking the grounding impedance as output data to generate a measurement model;
the measurement unit 204 obtains the soil parameter, the grounding grid parameter and the lightning current parameter of the target sharing tower, inputs the parameters into the measurement model, and obtains the grounding impedance of the target sharing tower.
Soil parameters for a variety of soils including:
the resistivity of the homogeneous soil;
horizontal stratification of soil the resistivity and soil thickness of each layer.
Grounding grid parameters including:
the method comprises the following steps of (1) grounding electrode buried depth value, conductor relative permeability, conductor radius, conductor resistivity, subdivision length and grounding electrode type;
a ground electrode type comprising: the square box has rays and the rays have a bifurcation type, a single horizontal type and a single vertical type.
Lightning current parameters comprising:
peak current correction factor, point current decay time constant, point current rise time constant, current amplitude and total point current duration;
and collecting the lightning current parameters by preset step length.
The method is visual and simple, can quickly obtain the impact grounding impedance value of the shared tower, and greatly reduces the workload.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the application can be implemented by adopting various computer languages, such as object-oriented programming language Java and transliterated scripting language JavaScript.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (8)
1. A method for determining a shared tower ground impedance, the method comprising:
acquiring soil parameters of various kinds of soil, and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil;
determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters;
taking soil parameters, grounding parameters and lightning current parameters as input data, taking grounding impedance as output data, training the input data and the output data, and generating a measurement model;
and acquiring the soil parameter, the grounding grid parameter and the lightning current parameter of the target sharing tower, inputting the parameters into the measurement model, and acquiring the grounding impedance of the target sharing tower.
2. The method of claim 1, the plurality of soil parameters of the soil comprising:
the resistivity of the homogeneous soil;
horizontal stratification of soil the resistivity and soil thickness of each layer.
3. The method of claim 1, the grounded screen parameters comprising:
the method comprises the following steps of (1) grounding electrode buried depth value, conductor relative permeability, conductor radius, conductor resistivity, subdivision length and grounding electrode type;
the grounding electrode type comprises: the square box has rays and the rays have a bifurcation type, a single horizontal type and a single vertical type.
4. The method of claim 1, the lightning current parameter, comprising:
peak current correction factor, point current decay time constant, point current rise time constant, current amplitude and total point current duration;
and collecting the lightning current parameters by preset step length.
5. A system for determining a shared tower ground impedance, the system comprising:
the acquisition unit is used for acquiring soil parameters of various kinds of soil and grounding grid parameters and lightning current parameters of each sharing tower on the various kinds of soil;
the calculation unit is used for determining the grounding impedance of each shared tower according to the soil parameters, the grounding parameters and the lightning current parameters;
the training unit is used for training the input data and the output data by taking the soil parameters, the grounding parameters and the lightning current parameters as input data and taking the grounding impedance as output data to generate a measurement model;
and the measuring unit is used for acquiring the soil parameters, the grounding grid parameters and the lightning current parameters of the target sharing tower, inputting the parameters into the measuring model and acquiring the grounding impedance of the target sharing tower.
6. The system of claim 5, the plurality of soil parameters of the soil comprising:
the resistivity of the homogeneous soil;
horizontal stratification of soil the resistivity and soil thickness of each layer.
7. The system of claim 5, the grounded grid parameters comprising:
the method comprises the following steps of (1) grounding electrode buried depth value, conductor relative permeability, conductor radius, conductor resistivity, subdivision length and grounding electrode type;
the grounding electrode type comprises: the square box has rays and the rays have a bifurcation type, a single horizontal type and a single vertical type.
8. The system of claim 5, the lightning current parameter, comprising:
peak current correction factor, point current decay time constant, point current rise time constant, current amplitude and total point current duration;
and collecting the lightning current parameters by preset step length.
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| CN202010195928.5A CN111521875A (en) | 2020-03-19 | 2020-03-19 | Method and system for determining grounding impedance of shared tower |
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| CN202010195928.5A CN111521875A (en) | 2020-03-19 | 2020-03-19 | Method and system for determining grounding impedance of shared tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219001A (en) * | 2021-04-28 | 2021-08-06 | 国网天津市电力公司 | Grounding model selection method and device based on numerical algorithm |
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| CN105652093A (en) * | 2015-12-30 | 2016-06-08 | 国家电网公司 | Grounding device impact grounding impedance test method |
| CN105929241A (en) * | 2016-06-15 | 2016-09-07 | 国网江西省电力科学研究院 | Grounding network design method for reducing impact grounding resistance of grounding network |
| CN108020725A (en) * | 2017-12-01 | 2018-05-11 | 广东电网有限责任公司佛山供电局 | A kind of earth mat impulse earthed resistance measuring method under the influence of different soils acid-base value |
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- 2020-03-19 CN CN202010195928.5A patent/CN111521875A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014173314A1 (en) * | 2013-04-27 | 2014-10-30 | 国网四川省电力公司电力科学研究院 | System for testing property of thunder and lightning traveling wave of power transmission line |
| CN105490041A (en) * | 2015-12-21 | 2016-04-13 | 云南电网有限责任公司电力科学研究院 | Electric transmission line tower grounding body and impulse grounding resistance calculation method therefor |
| CN105652093A (en) * | 2015-12-30 | 2016-06-08 | 国家电网公司 | Grounding device impact grounding impedance test method |
| CN105929241A (en) * | 2016-06-15 | 2016-09-07 | 国网江西省电力科学研究院 | Grounding network design method for reducing impact grounding resistance of grounding network |
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Application publication date: 20200811 |