CN113533878A - System and method for measuring ion flow field of high-voltage direct-current simulation line - Google Patents
System and method for measuring ion flow field of high-voltage direct-current simulation line Download PDFInfo
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Abstract
The invention discloses a system and a method for measuring an ion flow field of a high-voltage direct-current simulation line, and belongs to the technical field of ion flow field simulation experiments. The system of the invention comprises: the measuring unit is used for generating high-voltage direct-current voltage, applying the high-voltage direct-current voltage to the analog line, enabling the surface of a lead of the analog line to be corona, and generating ions in the air to form an ion flow field; collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit; the local unit is used for measuring the high voltage value of the voltage signal, receiving the wireless signal and converting the wireless signal into an electric signal; and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line. The system can control the measuring time step, monitor the measured data in real time and obtain the data characteristics, can master the characteristics of the measuring result in real time, and ensures the controllability of the system.
Description
Technical Field
The invention relates to the technical field of ion flow field simulation experiments, in particular to a system and a method for measuring an ion flow field of a high-voltage direct-current simulation line.
Background
In order to realize the large-scale configuration of resources and ensure the continuous and stable development of national economy, the national development is vigorously developing a strong intelligent power grid which takes an extra-high voltage power grid as a backbone network and is coordinately developed by various levels of power grids, the mileage scale of the power grid is huge, 11 extra-high voltage direct current engineering lines are constructed and approved to be constructed for 3. Meanwhile, land resources in China are in short supply, line corridors are increasingly difficult to select, and the situation that lines are close to buildings such as residential houses, agricultural greenhouses and the like is increasingly common.
The civil house platform is an important and frequent activity area for residents, and when the direct current transmission line is designed at present, a direct current composite field below the line and the ground is mainly considered, so that the electric field at the civil house platform is not considered deeply enough. In addition, the environmental protection complaints of the power grid of residents along the engineering line are mostly concentrated on the electric field complaints at the civil house platform, which arouses the high attention of the environmental protection and electric power departments. According to the evaluation requirement [5] in the technical guideline for evaluation of environmental impact (HJ 24-2014), the ecological environment department definitely carries out comprehensive evaluation on the direct current electric field at the civil house platform in the area near the line, however, at present, the evaluation work of the environmental impact of the civil house platform lacks effective support due to the lack of an accurate prediction method and an effective control measure of the direct current electric field at the civil house platform [6-7 ]. Therefore, the electric field intensity distribution characteristics of the civil house platform nearby the power transmission line are researched, the effective control of the direct current synthetic field at the civil house platform nearby the power transmission line is realized, the electromagnetic environment friendliness of residential living areas and the civil house platform along the power transmission and transformation project is guaranteed, and the method has important practical significance.
The electric field intensity at the resident civil house platform is influenced by various factors such as line parameters, civil house size, medium and the like, the electric field distortion is serious, and the characteristics and the distribution rule are complex. For a direct current transmission line, the influence of an electric field at a civil house platform comprises two parts, namely an electrostatic field and an ion flow field. The ion flow field is susceptible to external factors, and the distortion of the ion flow field at the civil house platform is serious, so that the distribution of the composite field is complicated. The research on the electric field characteristics of the civil house platform near the power transmission line in the three-dimensional space is not deep enough, the electric field intensity distribution characteristics and the ion current distribution characteristics are not clear, the prediction guarantee cannot be accurately provided for the electromagnetic environment indexes of the civil house platform when the line is erected, and the environment assessment work is difficult to implement. Therefore, methods such as theoretical analysis and simulation experiments are urgently needed to realize the ion flow field distribution above the building.
Disclosure of Invention
The invention aims to provide a system for measuring an ion flow field of a high-voltage direct-current simulation line, aiming at the problem that prediction guarantee cannot be provided for electromagnetic environment indexes at a civil house platform when a high-voltage line is erected, and the system comprises:
the measuring unit is used for generating high-voltage direct-current voltage, applying the high-voltage direct-current voltage to the analog line, enabling the surface of a lead of the analog line to be corona, and generating ions in the air to form an ion flow field;
collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit;
the local unit is used for measuring the high voltage value of the voltage signal, receiving the wireless signal and converting the wireless signal into an electric signal;
and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line.
Optionally, the measurement unit includes:
the positive and negative polarity high voltage generation module is used for simulating the generation of high-voltage direct current voltage;
simulating a line and a tower, wherein the surface of the wire is corona after voltage is applied, and an ion flow is formed in the space to generate an ion flow field;
the simulation building ion flow field acquisition module is used as a building model in a field area to acquire ion flow field data;
the ion flow field data transmission module is used for taking the ion flow field data as a wireless signal and transmitting the wireless signal to the local unit through wireless communication;
and the high-voltage data transmission module transmits the voltage signal to the local unit.
Optionally, the local unit includes:
the data receiving module is used for receiving the voltage signal and measuring the high voltage value of the voltage signal;
the ion flow field data receiving module is used for receiving wireless signals;
and the data comprehensive processing module is used for reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current circuit.
Optionally, the positive and negative polarity high voltage generating module includes:
the positive polarity high voltage generator, the positive polarity high voltage controller, the negative polarity high voltage generator and the negative polarity high voltage controller.
Optionally, the simulation building ion flow field acquisition module encapsulates the field mill probe, the charging device and the signal antenna inside the building model.
Optionally, the high voltage data transmission module converts the high voltage into a low voltage signal by using a voltage divider and transmits the low voltage signal to the data receiving module.
The invention also provides a method for measuring the ion flow field of the high-voltage direct current analog line, which comprises the following steps:
high voltage of positive and negative polarities of the measuring unit generates high voltage direct current voltage, the high voltage direct current voltage is applied to the analog line, the surface of a lead of the analog line is enabled to be corona, and an ion flow field is generated in the air;
collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit;
the local unit is responsible for measuring the high voltage value of the voltage signal, receiving the wireless signal and converting the wireless signal into an electric signal;
and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line.
Optionally, the measurement unit includes:
the positive and negative polarity high voltage generation module is used for simulating the generation of high-voltage direct current voltage;
simulating a line and a tower, wherein the surface of the wire is corona after voltage is applied, and an ion flow is formed in the space to generate an ion flow field;
the simulation building ion flow field acquisition module is used as a building model in a field area to acquire ion flow field data;
the ion flow field data transmission module is used for taking the ion flow field data as a wireless signal and transmitting the wireless signal to the local unit through wireless communication;
and the high-voltage data transmission module transmits the voltage signal to the local unit.
Optionally, the local unit includes:
the data receiving module is used for receiving the voltage signal and measuring the high voltage value of the voltage signal;
the ion flow field data receiving module is used for receiving wireless signals;
and the data comprehensive processing module is used for reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current circuit.
Optionally, the positive and negative polarity high voltage generating module includes:
the positive polarity high voltage generator, the positive polarity high voltage controller, the negative polarity high voltage generator and the negative polarity high voltage controller.
Optionally, the simulation building ion flow field acquisition module encapsulates the field mill probe, the charging device and the signal antenna inside the building model.
Optionally, the high voltage data transmission module converts the high voltage into a low voltage signal by using a voltage divider and transmits the low voltage signal to the data receiving module.
The system can control the measuring time step, monitor the measured data in real time and obtain the data characteristics, can master the characteristics of the measuring result in real time, and ensures the controllability of the system.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
FIG. 2 is a schematic structural diagram of an ion flow field measurement system above a building near a high-voltage direct-current line according to the present invention;
FIG. 3 is a schematic structural diagram of the ion flow field acquisition module 5 for simulating a building according to the present invention;
FIG. 4 is a schematic view of the location of the surface measurement points of the building according to the present invention;
FIG. 5 is a flow chart of the method of 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 system for measuring an ion flow field of a high-voltage direct-current analog line, which comprises the following components as shown in figure 1:
the measuring unit is used for generating high-voltage direct-current voltage, applying the high-voltage direct-current voltage to the analog line, enabling the surface of a lead of the analog line to be corona, and generating an ion flow field in the air;
collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit;
the local unit is used for measuring the high voltage value of the voltage signal, receiving the wireless signal and converting the wireless signal into an electric signal;
and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line.
Wherein, the measuring unit includes:
the positive and negative polarity high voltage generation module is used for simulating the generation of high-voltage direct current voltage;
simulating a line and a tower, wherein the surface of the wire is corona after voltage is applied, and an ion flow is formed in the space to generate an ion flow field;
the simulation building ion flow field acquisition module is used as a building model in a field area to acquire ion flow field data;
the ion flow field data transmission module is used for taking the ion flow field data as a wireless signal and transmitting the wireless signal to the local unit through wireless communication;
and the high-voltage data transmission module transmits the voltage signal to the local unit.
Wherein, the local unit includes:
the data receiving module is used for receiving the voltage signal and measuring the high voltage value of the voltage signal;
the ion flow field data receiving module is used for receiving wireless signals;
and the data comprehensive processing module is used for reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current circuit.
Wherein, positive and negative polarity high voltage generation module includes:
the positive polarity high voltage generator, the positive polarity high voltage controller, the negative polarity high voltage generator and the negative polarity high voltage controller.
The simulation building ionic flow field acquisition module encapsulates the field mill probe, the charging device and the signal antenna inside the building model.
The high-voltage data transmission module converts high-voltage into low-voltage signals by using the voltage divider and transmits the low-voltage signals to the data receiving module.
The specific implementation mode is as follows:
the measurement end 1 and the local end 2 of the ion flow field simulation measurement system above the building are connected through wireless communication and a coaxial cable.
The measuring terminal 1 is mainly composed of a high-voltage direct-current transmission line model and a building model in a laboratory, and carries out ion flow field data acquisition work on a building after applying direct-current high voltage to corona starting, as shown in fig. 2.
The measurement end of the ion flow field measurement system comprises: the device comprises a positive and negative polarity high voltage generation module, a simulation line and tower, a simulation building ionic flow field acquisition module, a voltage data transmission module and an ionic flow field data transmission module.
The positive and negative polarity high voltage generation module is used for simulating voltage generation of high voltage direct current, and transmits voltage signals to the data receiving module of the local end through a voltage divider and other devices.
When the analog line is applied with voltage, the surface of the wire is enabled to be corona, ion flow is formed in the space, and an ion flow field is generated.
The ion flow field data transmission module mainly transmits the measured ion flow field data to a local terminal through wireless communication, as shown in fig. 3.
In the ion flow field acquisition module, a field mill probe, a charging device and a signal antenna are packaged in a building model, and the ion flow field measurement of different positions on the surface of a building can be realized through different opening positions above the building.
In addition, in order to comprehensively grasp the electric field distribution of the upper surface, the electric field intensity of 9 points on the upper surface can be completely measured by disassembling the upper surface and rotating for 4 times, as shown in fig. 4.
The data receiving module of the local end 2 is divided into two parts of voltage signal data receiving and ion flow field measurement data receiving, and mainly completes high voltage control and monitoring, ion flow field data receiving and corresponding data processing work, including storage, characteristic parameter extraction, graph drawing and the like.
The voltage signal receiving is used for measuring an applied high voltage value through a voltage divider and other devices, and the ion flow field data receiving is used for receiving a wireless signal transmitted by a measuring end, converting the wireless signal into an electric signal and transmitting the electric signal to the data comprehensive processing module.
The data comprehensive processing module can control the applied voltage value and the measurement time step, and reduce the obtained electric signals into ion flow field data according to the time step and further process the ion flow field data to obtain the relevant characteristics of the data.
The invention also provides a method for measuring the ion flow field of the high-voltage direct current analog line, as shown in fig. 5, comprising the following steps:
high voltage of positive and negative polarities of the measuring unit generates high voltage direct current voltage, the high voltage direct current voltage is applied to the analog line, the surface of a lead of the analog line is enabled to be corona, and an ion flow field is generated in the air;
collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit;
the local unit is responsible for measuring the high voltage value of the voltage signal, receiving the wireless signal and converting the wireless signal into an electric signal;
and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line.
Wherein, the measuring unit includes:
the positive and negative polarity high voltage generation module is used for simulating the generation of high-voltage direct current voltage;
simulating a line and a tower, wherein the surface of the wire is corona after voltage is applied, and an ion flow is formed in the space to generate an ion flow field;
the simulation building ion flow field acquisition module is used as a building model in a field area to acquire ion flow field data;
the ion flow field data transmission module is used for taking the ion flow field data as a wireless signal and transmitting the wireless signal to the local unit through wireless communication;
and the high-voltage data transmission module transmits the voltage signal to the local unit.
Wherein, the local unit includes:
the data receiving module is used for receiving the voltage signal and measuring the high voltage value of the voltage signal;
the ion flow field data receiving module is used for receiving wireless signals;
and the data comprehensive processing module is used for reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current circuit.
Wherein, positive and negative polarity high voltage generation module includes:
the positive polarity high voltage generator, the positive polarity high voltage controller, the negative polarity high voltage generator and the negative polarity high voltage controller.
The simulation building ionic flow field acquisition module encapsulates the field mill probe, the charging device and the signal antenna inside the building model.
The high-voltage data transmission module converts high-voltage into low-voltage signals by using the voltage divider and transmits the low-voltage signals to the data receiving module.
The system can control the measuring time step, monitor the measured data in real time and obtain the data characteristics, can master the characteristics of the measuring result in real time, and ensures the controllability of the system.
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 (12)
1. A system for measuring a high voltage direct current analog line ion flow field, the system comprising:
the measuring unit is used for generating high-voltage direct-current voltage, applying the high-voltage direct-current voltage to the analog line, enabling the surface of a lead of the analog line to be corona, and generating ions in the air to form an ion flow field;
collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit;
the local unit is used for measuring the high voltage value of the voltage signal, receiving the wireless signal and converting the wireless signal into an electric signal;
and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line.
2. The system of claim 1, the measurement unit, comprising:
the positive and negative polarity high voltage generation module is used for simulating the generation of high-voltage direct current voltage;
simulating a line and a tower, wherein the surface of the wire is corona after voltage is applied, and an ion flow is formed in the space to generate an ion flow field;
the simulation building ion flow field acquisition module is used as a building model in a field area to acquire ion flow field data;
the ion flow field data transmission module is used for taking the ion flow field data as a wireless signal and transmitting the wireless signal to the local unit through wireless communication;
and the high-voltage data transmission module transmits the voltage signal to the local unit.
3. The system of claim 1, the local unit, comprising:
the data receiving module is used for receiving the voltage signal and measuring the high voltage value of the voltage signal;
the ion flow field data receiving module is used for receiving wireless signals;
and the data comprehensive processing module is used for reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and carrying out the ion flow field measurement of the high-voltage direct-current analog line.
4. The system of claim 2, the positive-negative polarity high voltage generation module comprising:
the positive polarity high voltage generator, the positive polarity high voltage controller, the negative polarity high voltage generator and the negative polarity high voltage controller.
5. The system of claim 2, wherein the simulated building ion flow field acquisition module encapsulates a field mill probe, a charging device and a signal antenna inside the building model.
6. The system of claim 2, wherein the high voltage data transmission module converts the high voltage to a low voltage signal using a voltage divider and transmits the low voltage signal to the data receiving module.
7. A method of measuring a high voltage direct current analog line ion flow field, the method comprising:
high voltage of positive and negative polarities of the measuring unit generates high voltage direct current voltage, the high voltage direct current voltage is applied to the analog line, the surface of a lead of the analog line is enabled to be corona, ions are generated in the air, and an ion flow field is formed;
collecting the generated ion flow field data and voltage signals, converting the ion flow field data into wireless signals, and transmitting the wireless signals and the voltage signals to a local unit;
the local unit measures the high voltage value of the voltage signal, receives the wireless signal and converts the wireless signal into an electric signal;
and reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current line.
8. The method of claim 7, the measurement unit, comprising:
the positive and negative polarity high voltage generation module is used for simulating the generation of high-voltage direct current voltage;
simulating a line and a tower, wherein the surface of the wire is corona after voltage is applied, and an ion flow is formed in the space to generate an ion flow field;
the simulation building ion flow field acquisition module is used as a building model in a field area to acquire ion flow field data;
the ion flow field data transmission module is used for taking the ion flow field data as a wireless signal and transmitting the wireless signal to the local unit through wireless communication;
and the high-voltage data transmission module transmits the voltage signal to the local unit.
9. The method of claim 7, the local unit, comprising:
the data receiving module is used for receiving the voltage signal and measuring the high voltage value of the voltage signal;
the ion flow field data receiving module is used for receiving wireless signals;
and the data comprehensive processing module is used for reducing the ion flow field data according to the measurement time step length by using the voltage value and the electric signal, and performing the ion flow field measurement of the analog high-voltage direct-current circuit.
10. The method of claim 8, the positive-negative polarity high voltage generation module comprising:
the positive polarity high voltage generator, the positive polarity high voltage controller, the negative polarity high voltage generator and the negative polarity high voltage controller.
11. The method of claim 8, wherein the simulated building ion flow field acquisition module encapsulates a field mill probe, a charging device, and a signal antenna inside a building model.
12. The method of claim 8, wherein the high voltage data transmission module converts the high voltage to a low voltage signal using a voltage divider and transmits the low voltage signal to the data reception module.
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