CN114552583A - Power supply line optimization method - Google Patents
Power supply line optimization method Download PDFInfo
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- CN114552583A CN114552583A CN202210035110.6A CN202210035110A CN114552583A CN 114552583 A CN114552583 A CN 114552583A CN 202210035110 A CN202210035110 A CN 202210035110A CN 114552583 A CN114552583 A CN 114552583A
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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
- H02J3/01—Arrangements for reducing harmonics or ripples
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The application provides a power supply line optimization method, which comprises the following steps: s101, segmenting an original mine line; s102, a dry type transformer is electrically connected to the main transportation section, and power is supplied to the connection position of the main transportation section and the sub transportation section through an amorphous alloy transformer; s103, electrically connecting a voltage regulator and a high-power air switch behind the dry-type transformer on the total transportation section; s104, electrically connecting a filter, an air switch and a voltage regulator behind each segmented amorphous alloy transformer; s105, the total transportation section and the branch transportation section are respectively and electrically connected with a grounding end, the 1140V of the console and the remote exchanger power supply is changed into 127V of the lighting comprehensive protection band, and the 1140V interfered power supply is isolated by a lighting comprehensive protection transformer; the invention reduces the investment of electrical equipment, ensures the power supply safety, reduces the maintenance workload of workers, and has the advantages of economy, reliability and obvious effect.
Description
Technical Field
The application relates to the technical field of power supply lines, in particular to a power supply line optimization method.
Background
A frequency converter is used in the underground belt conveyor, belt signals and a control system are interfered, the signals cannot normally communicate with the ground frequently, and the phenomena of code error of a display screen of a belt console and the like frequently occur. If a power supply line is laid separately, the console and the remote switch are taken. The maintenance workload and equipment investment of workers can be increased. And is very resource consuming.
The power supply circuit under the mine is easily interfered when in use, a large amount of resources and manpower are consumed if the existing circuit is disassembled, the engineering quantity is huge, the implementation is inconvenient, and the method for reconstructing the circuit in the prior art is adopted to solve the prior technical problem.
Disclosure of Invention
In order to make up for the defects, the power supply line optimization method aims to improve the problem that the existing power supply line under a mine is easily interfered when used, and if the existing line is disassembled, a large amount of resource consumption and manpower consumption are caused, and the power supply line optimization method is huge in engineering quantity and inconvenient to implement.
The embodiment of the application provides a power supply line optimization method, which comprises the following steps:
s101, carrying out partition processing on mine lines: segmenting an original mine line into an overall transportation section and a sub-transportation section;
s102, installing a transformer for power supply: the main transportation section is electrically connected with a dry type transformer, and power is supplied at the joint of the main transportation section and the sub transportation section through an amorphous alloy transformer;
s103, installing a voltage regulator and an air switch for regulation and control: a voltage regulator is electrically connected behind the dry-type transformer on the main transportation section, and a high-power air switch is electrically connected behind the voltage regulator;
s104, installing a filter for filtering clutter: a filter is electrically connected behind each segmented amorphous alloy transformer, and an air switch and a voltage regulator are electrically connected behind the filter;
s105, ground protection and power supply change: grounding ends are respectively and electrically connected to the main transportation section and the sub-transportation sections, the grounding ends are grounded, the 1140V of the console and the power supply of the remote exchanger are changed into 127V of the lighting comprehensive protection band, and the 1140V interfered power supply is isolated by the lighting comprehensive protection transformer.
In the implementation process, the grounding electrode is taken and installed separately, grounding interference is avoided, the 1140V power supply of the console and the remote exchanger is changed into 127V power supply of the remote exchanger to use an illumination comprehensive protection band, and the 1140V power supply is isolated by an illumination comprehensive protection transformer. The technology is applied to places such as 84 transportation, west wing two-part belts, east wing transportation belts and the like, reduces the investment of electrical equipment, ensures the power supply safety, reduces the maintenance workload of workers, and has the advantages of economy, reliability and obvious effect. The invention realizes the sectional treatment of the power supply line, so that a voltage device in the power supply line can effectively control and regulate and maintain the stability of voltage, the novel energy transformer is adopted for convenient control, various devices are arranged, the power supply circuit is controlled and regulated, the voltage of the power supply line is maintained stable, the power supply circuit is respectively and electrically grounded, the interference is reduced, and the lighting comprehensive protection belt is adopted for isolation, so that the interference problem is reduced.
In a specific embodiment, the method further comprises a voltage fluctuation detection method:
s201, electric energy analysis is carried out on the circuit: the main transportation section and the sub transportation section are respectively and electrically connected with an electric energy quality analyzer;
s202, realizing control and regulation of electric energy analysis: the electric energy quality analyzer is electrically connected with a control module, and the control module is electrically connected with an information processing module and a communication module;
s203, realizing the transmission of data information: the electric energy quality analyzer remotely transmits the electric energy information in the analysis and detection process to the monitoring platform through the control module, the information processing module and the communication module;
s204, realizing remote control, regulation and monitoring: when the quality of electric energy is unstable, the monitoring platform controls the air switch to perform power-off operation, and then performs inspection and repair;
s205, fault reporting: and after the inspection and repair are finished, performing closing retest, and reporting the fault problem after determining that no problem exists.
In the implementation process, the power supply line can be effectively detected, and remote transmission control operation is realized.
In a specific embodiment, the power quality analyzer in S201 is used to realize effective detection of the delivered power, and the detected items include over-current and under-voltage detection, frequency deviation, voltage fluctuation and flicker, three-phase imbalance, temporary or transient over-voltage, waveform distortion harmonic, voltage sag, interruption, sag, and power supply continuity.
In the implementation process, the electric energy quality analyzer can analyze various performances of the circuit in the implementation of detection, can effectively detect the circuit, and reduces the installation of other equipment.
In a specific implementation, the information processing module in S202 includes information receiving, information filtering, information gain, and information packing, where the information receiving is used to receive the data information detected by the power quality analyzer, the information filtering circuit is used to perform filtering processing on the detected data information, so as to effectively filter out clutter, the information gain is used to perform gain amplification processing on the detected data information, so as to prevent the data information from being lost during transmission, and the information packing is used to perform packing processing on the detected data information, so as to effectively remove useless data information, and improve the information transmission rate of data.
In the implementation process, the detected data information can be effectively processed and transmitted, and the problems of loss and the like of the data information in the transmission process can be effectively prevented.
In a specific embodiment, the information about the reported fault in S205 includes fault information, a fault point, a fault description, fault repair contents, a fault repair and replacement device, a fault repair time, and a contact information between a fault repair person and a person, where the fault information, the fault point, and the fault repair and replacement device are filling items that must be possessed, and the reported fault is a paper report or an electronic page report.
In the implementation process, the reporting of the fault can facilitate the recording of the fault problem and the fault point, and facilitate the analysis and the processing of the subsequent fault problem.
In a specific embodiment, the total transport section and the sub transport section in S101 are a bus end of the power supply line and a branch section of the power supply line, respectively, and the length of the branch section of the power supply line is between 200m and 300m, that is, the control line length of the amorphous alloy transformer is between 200m and 300 m.
In the implementation process, the distance of the power supply line is set, so that the interference problem can be effectively reduced, and effective control and adjustment can be realized.
In a specific implementation scheme, the voltage regulator in S103 is used for realizing stable regulation of voltage in a power supply line, so as to keep output of the voltage stable, the air switch is used for realizing control of the power supply line, and power-off maintenance is performed when a line fails, and the air switch can also realize automatic disconnection, so that the system can be prevented from failing in operation and being incapable of performing timely disconnection protection.
In the implementation process, the voltage can be controlled and adjusted, and the circuit is closed timely in the process of failure and electric leakage, so that the circuit is prevented from being out of order and huge economic and personnel injuries are caused.
In a specific embodiment, the filter in S104 is used to implement filtering processing on the voltage of the branch segment to prevent the voltage fluctuation from being too large, and the filter employs an FFT algorithm, a DFT algorithm, and a three-phase circuit instantaneous reactive power theory algorithm, where the calculation method of the DFT algorithm is as follows:
let A be given in coefficient form: a ═ a0, a1, an 2.. an-1), followed by k ═ 0,1, 2.. n-1, with the result y definedk：
A discrete fourier transform DFT where the vector y (y0, y 1.. yn-1) is the coefficient vector a (a0, a 1.., an-1);
the calculation method of the FFT algorithm is as follows:
first, two new polynomials with degree bound n/2 are defined separately
A[0](x)＝a0+a2+...an-2xn/2-1
A[1](x)＝a1+a3+...an-1xn/2-1
Containing the coefficients of all even indices and odd indices,
A(x)＝A[0](X2)+xA[1](x2)
thus obtaining A (x)
The value of (1) translates into:
obtaining the value of polynomial A0 (x) + xA 1 (x) with degree boundary of n/2 at point (omega 0)2 … (omega n-1)2,
by calculating the FFT with a recursive method,
calculating inverse DFT, modifying FFT algorithm, exchanging a with y, and using
Replace ω n and divide each number of the calculation resultsAnd n.
In the implementation process, effective filtering processing can be performed on the circuit, and the stability and the safety of the circuit are kept.
In a specific embodiment, the ground terminal in S105 is used to reduce the impedance by reducing the ground resistance and reducing the ground inductance;
the resistance of a ground wire conductor is reduced, the cross section area of ground wire conduction needs to be increased from a relation formula of the resistance and the cross section, but in a high-frequency environment, a skin effect of high-frequency current exists, the high-frequency current can pass through the surface of the conductor, the effect is usually not large when the cross section area of the ground wire conductor is simply increased, the resistance of the conductor is reduced by silver plating on the surface of the conductor, and the conductivity of silver is better than that of other conductive substances, so that the resistance of the conductor can be reduced;
the inductive reactance of the ground wire is reduced, the area of the ground wire is increased, and in practical application, the ground wire is short, the ground area is large, and the anti-interference effect is better.
In the implementation process, the inductive reactance problem of the grounding end can be effectively reduced, and the anti-interference capacity can be increased.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a process diagram illustrating the steps provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a detection step method provided in the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the present application provides a power supply line optimization method, which includes the following steps:
s101, carrying out partition processing on mine lines: segmenting an original mine line into an overall transportation section and a sub-transportation section;
s102, installing a transformer for power supply: the main transportation section is electrically connected with a dry type transformer, and power is supplied at the joint of the main transportation section and the sub transportation section through an amorphous alloy transformer;
s103, installing a voltage regulator and an air switch for regulation and control: a voltage regulator is electrically connected behind the dry-type transformer on the main transportation section, and a high-power air switch is electrically connected behind the voltage regulator;
s104, installing a filter for filtering clutter: a filter is electrically connected behind each segmented amorphous alloy transformer, and an air switch and a voltage regulator are electrically connected behind the filter;
s105, ground protection and power supply change: grounding ends are respectively and electrically connected to the main transportation section and the sub-transportation sections, the grounding ends are grounded, the 1140V of the console and the power supply of the remote exchanger are changed into 127V of the lighting comprehensive protection band, and the 1140V interfered power supply is isolated by the lighting comprehensive protection transformer.
In the implementation process, the grounding electrode is taken and installed separately, grounding interference is avoided, the 1140V power supply of the console and the remote exchanger is changed into 127V power supply of the remote exchanger to use an illumination comprehensive protection band, and the 1140V power supply is isolated by an illumination comprehensive protection transformer. The technology is applied to places such as 84 transportation, west wing two-part belts, east wing transportation belts and the like, reduces the investment of electrical equipment, ensures the power supply safety, reduces the maintenance workload of workers, and has the advantages of economy, reliability and obvious effect. The invention can effectively control and regulate the voltage regulator in the power supply line by realizing the sectional treatment of the power supply line, keeps the stability of the voltage, is convenient to control by adopting a novel energy transformer, is provided with various devices, realizes the control and regulation of the power supply circuit, keeps the voltage of the power supply line stable, reduces the interference by adopting the respective electric grounding, and reduces the interference by adopting the illumination comprehensive protection belt for isolation.
Referring to fig. 2, in a specific embodiment, a voltage fluctuation detection method is further included:
s201, electric energy analysis is carried out on the circuit: the main transportation section and the sub transportation section are respectively and electrically connected with an electric energy quality analyzer;
s202, realizing control and regulation of electric energy analysis: the electric energy quality analyzer is electrically connected with a control module, and the control module is electrically connected with an information processing module and a communication module;
s203, realizing the transmission of data information: the electric energy quality analyzer remotely transmits the electric energy information in the analysis and detection process to the monitoring platform through the control module, the information processing module and the communication module;
s204, realizing remote control, regulation and monitoring: when the quality of electric energy is unstable, the monitoring platform controls the air switch to perform power-off operation, and then performs inspection and repair;
s205, fault reporting: and after the inspection and repair are finished, performing closing retest, and reporting the fault problem after determining that no problem exists.
The power supply circuit can be effectively detected, and remote transmission control operation is realized.
In a specific embodiment, the power quality analyzer in S201 is used to implement effective detection on the transmitted power, and the detected items include over-current and under-voltage detection, frequency deviation, voltage fluctuation and flicker, three-phase imbalance, temporary or transient overvoltage, waveform distortion harmonic, voltage sag, interruption, temporary rise and power supply continuity.
In an embodiment, the information processing module in S202 includes information receiving, information filtering, information gain, and information packing, where the information receiving is used to receive data information detected by the power quality analyzer, the information filtering circuit is used to filter the detected data information, so as to effectively filter out clutter, the information gain is used to amplify the detected data information, so as to prevent the data information from being lost during transmission, and the information packing is used to pack the detected data information, so as to effectively remove useless data information, improve the information transmission rate of data, effectively process and transmit the detected data information, and effectively prevent the data information from being lost during transmission.
In a specific implementation process, the information of the fault reported in S205 includes fault information, a fault point, a fault description, fault repair contents, a fault repair device, fault repair time, and a contact manner between a fault repair person and a person, where the fault information, the fault point, and the fault repair device are filling items that must be possessed, and the fault reported is a paper report or an electronic page report, and reporting of the fault can facilitate recording of the fault problem and the fault point, and facilitate analysis and processing of future fault problems.
In this embodiment, the total transport segment and the sub transport segment in S101 are the bus end of the power supply line and the branch segment of the power supply line, respectively, and the length of the branch segment of the power supply line is between 200m and 300m, that is, the length of the control line of the amorphous alloy transformer is between 200m and 300m, and the distance of the power supply line is set, so that the generation of the interference problem can be effectively reduced, and effective control and adjustment can be realized.
In specific embodiment, voltage regulator in S103 is arranged in realizing stabilizing the regulation to the voltage in the power supply line, keeps the output of voltage stable, air switch is used for realizing controlling the power supply line, carries out the outage when the circuit breaks down and overhauls to air switch can also realize automatic disconnection, can prevent that the system from breaking down when the operation, can't carry out timely disconnection protection, can realize carrying out control and regulation to the transport of voltage, and timely closed circuit when trouble and electric leakage, prevent that the circuit from going wrong, cause huge economy and personnel' S injury.
In the calculation process, the filter in S104 is used to implement filtering processing on the voltage of the branch segment to prevent the voltage fluctuation from being too large, and the filter adopts an FFT algorithm, a DFT algorithm, and a three-phase circuit instantaneous reactive power theory algorithm, and the calculation method of the DFT algorithm is as follows:
let A be given in coefficient form: a ═ a0, a1, an 2.. an-1), followed by k ═ 0,1, 2.. n-1, with the result y definedk：
A discrete fourier transform DFT where the vector y (y0, y 1.. yn-1) is the coefficient vector a (a0, a 1.., an-1);
the calculation method of the FFT algorithm is as follows:
first, two new polynomials with degree bound n/2 are defined separately
A[0](x)＝a0+a2+...an-2xn/2-1
A[1](x)＝a1+a3+...an-1xn/2-1
Containing the coefficients of all even indices and odd indices,
A(x)＝A[0](X2)+xA[1](x2)
thus obtaining A (x)
The value of (1) translates into:
obtaining the value of polynomial A0 (x) + xA 1 (x) with degree boundary of n/2 at point (omega 0)2 … (omega n-1)2,
by calculating the FFT with a recursive method,
calculating inverse DFT, modifying FFT algorithm, exchanging a with y, and using
And substituting omegan and dividing each number of calculation results by n, thereby realizing effective filtering processing on the circuit and maintaining the stability and safety of the circuit.
In this implementation, the ground terminal in S105 is used to reduce the impedance by reducing the ground resistance and reducing the ground inductance;
the resistance of a ground wire conductor is reduced, the cross section area of ground wire conduction needs to be increased from a relation formula of the resistance and the cross section, but in a high-frequency environment, a skin effect of high-frequency current exists, the high-frequency current can pass through the surface of the conductor, the effect is usually not large when the cross section area of the ground wire conductor is simply increased, the resistance of the conductor is reduced by silver plating on the surface of the conductor, and the conductivity of silver is better than that of other conductive substances, so that the resistance of the conductor can be reduced;
the inductive reactance of ground wire is reduced, the area of increase ground wire, and when the in-service use, the ground wire is short, and the ground area is big, and anti-jamming effect will be better, can effectually reduce the inductive reactance problem that earthing terminal self exists, can increase the interference killing feature.
Specifically, the working principle of the electric line optimization method is as follows: when in use, the utility model is used,
s101, carrying out partition processing on mine lines: segmenting an original mine line into an overall transportation section and a sub-transportation section;
s102, installing a transformer for power supply: the main transportation section is electrically connected with a dry type transformer, and power is supplied at the joint of the main transportation section and the sub transportation section through an amorphous alloy transformer;
s103, installing a voltage regulator and an air switch for regulation and control: a voltage regulator is electrically connected behind the dry-type transformer on the main transportation section, and a high-power air switch is electrically connected behind the voltage regulator;
s104, installing a filter for filtering clutter: a filter is electrically connected behind each segmented amorphous alloy transformer, and an air switch and a voltage regulator are electrically connected behind the filter;
s105, ground protection and power supply change: grounding ends are respectively and electrically connected to the main transportation section and the sub-transportation sections, the grounding ends are grounded, the 1140V of the console and the power supply of the remote exchanger are changed into 127V of the lighting comprehensive protection band, and the 1140V interfered power supply is isolated by the lighting comprehensive protection transformer.
In the voltage fluctuation detection method:
s201, electric energy analysis is carried out on the circuit: the main transportation section and the sub transportation section are respectively and electrically connected with an electric energy quality analyzer;
s202, realizing control and regulation of electric energy analysis: the electric energy quality analyzer is electrically connected with a control module, and the control module is electrically connected with an information processing module and a communication module;
s203, realizing the transmission of data information: the electric energy quality analyzer remotely transmits the electric energy information in the analysis and detection process to the monitoring platform through the control module, the information processing module and the communication module;
s204, realizing remote control, regulation and monitoring: when the quality of electric energy is unstable, the monitoring platform controls the air switch to perform power-off operation, and then performs inspection and repair;
s205, fault reporting: and after the inspection and repair are finished, performing closing retest, and reporting the fault problem after determining that no problem exists.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The power supply line optimization method is characterized by comprising the following steps:
s101, carrying out partition processing on mine lines: segmenting an original mine line into an overall transportation section and a sub-transportation section;
s102, installing a transformer for power supply: the main transportation section is electrically connected with a dry type transformer, and power is supplied at the joint of the main transportation section and the sub transportation section through an amorphous alloy transformer;
s103, installing a voltage regulator and an air switch for regulation and control: a voltage regulator is electrically connected behind the dry-type transformer on the main transportation section, and a high-power air switch is electrically connected behind the voltage regulator;
s104, installing a filter for filtering clutter: a filter is electrically connected behind each segmented amorphous alloy transformer, and an air switch and a voltage regulator are electrically connected behind the filter;
s105, ground protection and power supply reuse: grounding ends are respectively and electrically connected to the main transportation section and the sub-transportation sections, the grounding ends are grounded, the 1140V of the console and the power supply of the remote exchanger are changed into 127V of the lighting comprehensive protection band, and the 1140V interfered power supply is isolated by the lighting comprehensive protection transformer.
2. The power supply line optimization method according to claim 1, further comprising a voltage fluctuation detection method:
s201, electric energy analysis is carried out on the circuit: the main transportation section and the sub transportation section are respectively and electrically connected with an electric energy quality analyzer;
s202, realizing control and regulation of electric energy analysis: the electric energy quality analyzer is electrically connected with a control module, and the control module is electrically connected with an information processing module and a communication module;
s203, realizing the transmission of data information: the electric energy quality analyzer remotely transmits the electric energy information in the analysis and detection process to the monitoring platform through the control module, the information processing module and the communication module;
s204, realizing remote control, regulation and monitoring: when the power quality is unstable, the monitoring platform controls the air switch to perform power-off operation, and then performs routing inspection and repair;
s205, fault reporting: and after the inspection and repair are finished, performing closing retest, and reporting the fault problem after determining that no problem exists.
3. The power supply line optimization method according to claim 2, wherein the power quality analyzer in S201 is used to realize effective detection of the delivered power, and the detected items are over-current and under-voltage detection, frequency deviation, voltage fluctuation and flicker, three-phase imbalance, temporary or transient over-voltage, waveform distortion harmonic, voltage sag, interruption, pause, and power supply continuity.
4. The power supply line optimization method according to claim 2, wherein the information processing module in S202 includes information reception, information filtering, information gain, and information packing, the information reception is configured to implement reception of the data information detected by the power quality analyzer, the information filtering circuit is configured to implement filtering processing on the detected data information to effectively filter out noise, the information gain is configured to implement gain amplification processing on the detected data information to prevent the data information from being lost during transmission, and the information packing is configured to implement packing processing on the detected data information to effectively remove useless data information and improve the information transmission rate of data.
5. The power supply line optimization method of claim 2, wherein the information about the reported fault in S205 includes fault information, a fault point, a fault description, fault repair contents, a fault repair device, a fault repair time, and a contact information between a fault repair person and a person, the fault information, the fault point, and the fault repair device are filling items that must be provided, and the reported fault is a paper report or an electronic page report.
6. The power supply line optimization method according to claim 1, wherein the total transport section and the sub transport section in S101 are a bus end of the power supply line and a branch section of the power supply line, respectively, and the length of the branch section of the power supply line is between 200m and 300m, that is, the control line length of the amorphous alloy transformer is between 200m and 300 m.
7. The power supply line optimization method according to claim 1, wherein the voltage regulator in S103 is used to realize stable regulation of voltage in the power supply line and keep output of the voltage stable, the air switch is used to realize control of the power supply line and perform power-off maintenance when a line fails, and the air switch can also realize automatic disconnection, so as to prevent a system from failing in operation and failing to perform timely disconnection protection.
8. The power supply line optimization method according to claim 1, wherein the filter in S104 is used to implement filtering processing on the voltage of the branch line segment to prevent the voltage from fluctuating too much, and the filter adopts an FFT algorithm, a DFT algorithm, and a three-phase circuit instantaneous reactive power theory algorithm.
9. The power supply line optimization method according to claim 8, wherein the DFT algorithm is calculated as follows:
let A be given in coefficient form: a ═ a0, a1, an 2.. an-1), followed by k ═ 0,1, 2.. n-1, with the result y definedk：
A discrete fourier transform DFT where the vector y (y0, y 1.. yn-1) is the coefficient vector a (a0, a 1.., an-1);
the calculation method of the FFT algorithm is as follows:
first, two new polynomials with degree bound n/2 are defined separately
A[0](x)＝a0+a2+...an-2xn/2-1
A[1](x)＝a1+a3+...an-1xn/2-1
Containing the coefficients of all even indices and odd indices,
A(x)＝A[0](X2)+xA[1](x2)
thus obtaining A (x)
The value of (1) translates into:
obtaining the value of polynomial A0 (x) + xA 1 (x) with degree bound n/2 at point (omega 0)2 … (omega n-1)2,
by calculating the FFT with a recursive method,
calculating inverse DFT, modifying FFT algorithm, exchanging a with y, and using wn1 replaces ω n and divides each number of calculation results by n.
10. The power supply line optimization method according to claim 1, wherein the ground terminal in S105 is used to reduce the impedance by reducing the ground resistance and reducing the ground inductance;
the resistance of a ground wire conductor is reduced, the cross section area of ground wire conduction needs to be increased from a relation formula of the resistance and the cross section, but in a high-frequency environment, a skin effect of high-frequency current exists, the high-frequency current can pass through the surface of the conductor, the effect is usually not large when the cross section area of the ground wire conductor is simply increased, the resistance of the conductor is reduced by silver plating on the surface of the conductor, and the conductivity of silver is better than that of other conductive substances, so that the resistance of the conductor can be reduced;
the inductive reactance of the ground wire is reduced, the area of the ground wire is increased, and in practical application, the ground wire is short, the ground area is large, and the anti-interference effect is better.
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