CN111579934A - Method and device for realizing electric safety monitoring of external power network of base station and base station - Google Patents
Method and device for realizing electric safety monitoring of external power network of base station and base station Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000012423 maintenance Methods 0.000 claims abstract description 24
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- 239000000779 smoke Substances 0.000 claims description 8
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- 238000010586 diagram Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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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
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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
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Abstract
A method for realizing electric safety monitoring of an external power network of a base station, a device and the base station are provided, in the method, the base station is provided with a near-end alternating current intelligent switch, an external power network ignition point is provided with a far-end alternating current intelligent switch, and external mains supply parameters of an external power network power supply line between the base station and the external power network ignition point are collected through the far-end alternating current intelligent switch; acquiring input electrical parameters input into the base station by the external power supply line through the near-end alternating current intelligent switch; performing comprehensive calculation according to the external mains supply parameter and the input electric parameter to determine whether the external power supply line has electrical potential safety hazards; and if the external power supply line exists, reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the FSU. By implementing the embodiment of the application, the electrical safety hidden trouble of the power supply circuit of the external power network of the base station can be found in time, and the purpose of 'preventing the trouble in the bud' is achieved.
Description
Technical Field
The present application relates to the field of communications technologies and low-voltage power distribution, and in particular, to a method and an apparatus for implementing electrical safety monitoring of an external power grid of a base station, and a base station.
Background
With the construction and network access of a large number of 5G base stations, the load of the base stations is multiplied, and the power supply circuit of the power network outside the base stations may have the reasons of insufficient load bearing capacity caused by aging, faults or insufficient wire diameter, so that the potential electrical safety hazard is formed. In the prior art, the loss of a power supply line of a power network outside a base station caused by a safety accident can be treated on site, and the 'prevention in the bud' cannot be realized after the loss is too late.
Disclosure of Invention
The embodiment of the application discloses a method and a device for realizing electrical safety monitoring of an external power network of a base station and the base station, which can find out the electrical safety hidden trouble of a power supply circuit of the external power network of the base station in time and achieve 'prevention in the bud'.
The first aspect of the embodiment of the application discloses a method for realizing electrical safety monitoring of a base station external power grid, wherein the base station is provided with a near-end alternating current intelligent switch, and an external power grid ignition point is provided with a far-end alternating current intelligent switch, and the method comprises the following steps:
acquiring external mains supply parameters of an external power supply line between the base station and the external power supply line ignition point through the remote-end alternating-current intelligent switch;
acquiring input electrical parameters input into the base station by the external power supply line through the near-end alternating current intelligent switch;
performing comprehensive calculation according to the external mains supply parameter and the input electric parameter to determine whether the external power supply line has electrical potential safety hazards; and if the external power supply line exists, reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the dynamic environment monitoring unit FSU.
With reference to the first aspect of the embodiments of the present application, in some optional implementations, the external utility power parameter includes a current of each live line and a zero line on the three power supply lines of the external power network when a load of the base station is maintained stable, and an external utility voltage between each live line and the zero line and between the zero line and the ground; the input electrical parameters of the base station comprise input voltage between each live wire and a zero line and between the zero line and the ground; the basis according to outer commercial power parameter with the input electric parameter carries out the comprehensive calculation to confirm whether outer mains supply power supply line has electric potential safety hazard, include:
calculating the difference value between the voltage of the external market and the input voltage to obtain the voltage drop of each power supply line interval;
calculating the quotient of the voltage drop of the line interval and the current to obtain the line impedance R of each power supply line;
and aiming at the line impedance R of each power supply line, judging whether the line impedance R of the power supply line exceeds a preset impedance range, and if so, determining that the power supply line has electrical potential safety hazards.
With reference to the first aspect of the embodiment of the present application, in some optional implementations, the external utility power parameter includes a current Iout acquired by the remote ac intelligent switch in real time for each live line and zero line on the three power supply lines of the external power grid; the input electrical parameters of the base station comprise current Iin acquired by the near-end alternating current intelligent switch in real time for each live wire and zero line on the three power supply circuits of the external power grid; the basis according to outer commercial power parameter with the input electric parameter carries out the comprehensive calculation to confirm whether outer mains supply power supply line has electric potential safety hazard, include:
and judging whether the current Iout of the power supply line exceeds the Iin of the power supply line or not for each power supply line, and if so, determining that the power supply line has potential electrical safety hazards.
With reference to the first aspect of the embodiment of the present application, in some optional implementations, after reporting, by the FSU, alarm information for the external power supply line to the operation and maintenance monitoring platform, the method further includes:
controlling the remote AC intelligent switch to be switched on and off so as to disconnect the output of the external power grid ignition point; and/or controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
In combination with the first aspect of the embodiments of the present application, in some optional embodiments, the external power grid ignition point is provided with a remote temperature sensor and/or a remote smoke sensing probe, and the controlling the remote ac smart switch to be turned off to disconnect the output of the external power grid ignition point includes:
and detecting whether the far-end temperature sensor generates an over-temperature alarm and/or the far-end smoke-sensing probe generates a smoke-sensing alarm, and if the far-end temperature sensor generates the over-temperature alarm and/or the far-end smoke-sensing probe generates the smoke-sensing alarm, controlling the remote-end alternating current intelligent switch to be switched on and off so as to disconnect the output of the external power grid ignition point.
With reference to the first aspect of the embodiments of the present application, in some optional embodiments, the base station is provided with a near-end temperature sensor and/or a near-end smoke-sensitive probe, and the controlling the near-end ac smart switch to be turned on and off to protect safety of equipment inside the base station includes:
and detecting whether the near-end temperature sensor generates an over-temperature alarm and/or the near-end smoke-sensing probe generates a smoke-sensing alarm, and if the near-end temperature sensor generates the over-temperature alarm and/or the near-end smoke-sensing probe generates the smoke-sensing alarm, controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
The embodiment of this application in the second aspect discloses a realization device of basic station external power grid electrical safety control, and the basic station is equipped with near-end and exchanges intelligent switch, and external power grid takes a fire point to be equipped with far-end and exchanges intelligent switch, realization device includes:
the first acquisition unit is used for acquiring external mains supply parameters of an external power supply line between the base station and an external power supply ignition point through the remote-end alternating-current intelligent switch;
the second acquisition unit is used for acquiring input electrical parameters input into the base station by the external power supply line through the near-end alternating current intelligent switch;
the hidden danger determining unit is used for performing comprehensive calculation according to the external mains supply parameter and the input electric parameter so as to determine whether the external power supply line has an electrical potential safety hazard;
and the alarm unit is used for reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the dynamic environment monitoring unit FSU after the hidden danger determining unit determines that the external power supply line has the electrical potential safety hazard.
In combination with the second aspect of the embodiment of the present application, in some optional implementations, the external utility power parameter includes a current of each live line and a zero line on the three power supply lines of the external power grid when the load of the base station remains stable, and an external utility voltage between each live line and the zero line and between each zero line and the ground; the input electrical parameters of the base station comprise input voltage between each live wire and a zero line and between the zero line and the ground; the hidden danger determining unit is specifically configured to:
calculating the difference value between the voltage of the external market and the input voltage to obtain the voltage drop of each power supply line interval;
calculating the quotient of the voltage drop of the line interval and the current to obtain the line impedance R of each power supply line;
and aiming at the line impedance R of each power supply line, judging whether the line impedance R of the power supply line exceeds a preset impedance range, and if so, determining that the power supply line has electrical potential safety hazards.
With reference to the second aspect of the embodiment of the present application, in some optional implementations, the external utility power parameter includes a current Iout collected by the remote ac intelligent switch in real time for each live line and zero line on the three power supply lines of the external power grid; the input electrical parameters of the base station comprise current Iin acquired by the near-end alternating current intelligent switch in real time for each live wire and zero line on the three power supply circuits of the external power grid; the hidden danger determining unit is specifically configured to:
and judging whether the current Iout of the power supply line exceeds the Iin of the power supply line or not for each power supply line, and if so, determining that the power supply line has potential electrical safety hazards.
In combination with the second aspect of the embodiments of the present application, in some optional implementations, the apparatus for implementing electrical safety monitoring of an external power network of a base station further includes:
the control unit is used for controlling the remote-end alternating-current intelligent switch to be switched on and off after the alarm unit reports alarm information aiming at the external power grid power supply line to the operation and maintenance monitoring platform through the dynamic environment monitoring unit FSU so as to cut off the output of the external power grid ignition point; and/or controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
In combination with the second aspect of the embodiments of the present application, in some optional embodiments, the external power grid ignition point is provided with a remote temperature sensor and/or a remote smoke-sensing probe, and the control unit controls the remote ac intelligent switch to be turned on or off, so as to disconnect the output of the external power grid ignition point specifically:
and detecting whether the far-end temperature sensor generates an over-temperature alarm and/or the far-end smoke-sensing probe generates a smoke-sensing alarm, and controlling the remote alternating-current intelligent switch to be switched on so as to disconnect the output of the external power grid ignition point.
In combination with the second aspect of the embodiments of the present application, in some optional embodiments, the base station is provided with a near-end temperature sensor and/or a near-end smoke-sensitive probe, and the control unit controls the far-end ac intelligent switch to be turned on and off, so as to disconnect the output of the external power grid ignition point specifically:
and detecting whether the near-end temperature sensor generates an over-temperature alarm and/or the near-end smoke-sensing probe generates a smoke-sensing alarm, and if the near-end temperature sensor generates the over-temperature alarm and/or the near-end smoke-sensing probe generates the smoke-sensing alarm, controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
The third aspect of the embodiments of the present application discloses a base station, which includes any one of the apparatuses for monitoring electrical safety of the external power network of the base station disclosed in the first aspect of the embodiments of the present application.
Compared with the prior art, the embodiment of the application has the following beneficial effects:
in the embodiment of the application, the external mains supply parameters of the external power supply line between the base station and the external power supply line ignition point can be collected through the far-end alternating current intelligent switch, the input electric parameters of the external power supply line input into the base station are collected through the near-end alternating current intelligent switch, and comprehensive calculation is carried out according to the external mains supply parameters and the input electric parameters so as to determine whether the external power supply line has electrical potential safety hazards; and if the external power supply line exists, reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the FSU. Therefore, by implementing the embodiment of the application, the potential electrical safety hazard of the power supply circuit of the external power network of the base station can be found in time, the trouble can be prevented in the bud, the external power supply circuit can be alarmed in time when the potential electrical safety hazard of the power supply circuit of the external power network of the base station is found, and a maintenance responsibility unit can send people to check the power supply circuit immediately.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a power grid architecture disclosed in an embodiment of the present application;
fig. 2 is a schematic flowchart of an implementation method for monitoring electrical safety of an external base station network according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an apparatus for implementing electrical safety monitoring of an external base station network according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a base station disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in 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 only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application discloses a method and a device for realizing electrical safety monitoring of an external power network of a base station and the base station, which can find out the electrical safety hidden trouble of a power supply circuit of the external power network of the base station in time and achieve 'prevention in the bud'. The following detailed description is made with reference to the accompanying drawings.
In order to better understand the method, device and base station for monitoring the electrical safety of the external power grid of the base station disclosed in the embodiments of the present application, a power grid architecture disclosed in the embodiments of the present application is introduced first. Referring to fig. 1, fig. 1 is a schematic diagram of a power grid architecture disclosed in an embodiment of the present application. In the power grid architecture shown in fig. 1, the base station may be provided with a near-end ac intelligent switch and a device for implementing electrical safety monitoring of an external power grid of the base station, and an external power grid ignition point may be provided with a far-end ac intelligent switch; the near-end alternating current intelligent switch is connected with a device for realizing the electrical safety monitoring of the base station external power grid, the device for realizing the electrical safety monitoring of the base station external power grid can be connected with an upper operation and maintenance monitoring system through an FSU (frequency selective switch), and the far-end alternating current intelligent switch can be connected with the device for realizing the electrical safety monitoring of the base station external power grid through a 433M wireless module. Further, as shown in fig. 1, an external power supply line is connected between the far-end AC intelligent switch and the near-end AC intelligent switch, specifically, the far-end AC intelligent switch may be directly connected to one end of the external power supply line, and the near-end AC intelligent switch may be connected to the other end of the external power supply line through an outside AC38 photocoupler, so as to connect the external power supply line between the external power supply line and the base station. As shown in fig. 1, a near-end AC intelligent switch may be disposed on the distribution box of the base station, and the near-end AC intelligent switch may be further connected to loads such as a switching power supply and an air conditioner in the base station through an internal AC38 photocoupler.
In the embodiment of the present application, the power grid architecture shown in fig. 1 at least has the following functions:
1. abnormal voltage value alarm at input end of base station (also called machine room input end)
Assuming that the requirements of all the ac load devices such as the switching power supply and the air conditioner in the base station on the ac supply voltage range are (V1max, V1min), (V2max, V2min), …, (Vnmax, Vnmin), respectively, taking the minimum value of all Vmax and the maximum value of all Vmin, and these two values are the normal range of the ac input voltage at the base station end.
When Vmax acquired by a near-end alternating current intelligent switch of the base station in real time is higher than a preset range, the implementation device for monitoring the electrical safety of the external power grid of the base station can immediately control the near-end alternating current intelligent switch to be switched on and off in an idle mode except for immediately automatically alarming to an operation and maintenance monitoring system through an FSU (frequency selective unit) so as to protect individual equipment in the base station from being damaged due to power supply overvoltage; when Vmin acquired by the near-end alternating current intelligent switch of the base station in real time is lower than a preset range, the device for realizing the electrical safety monitoring of the external power grid of the base station can also automatically alarm the operation and maintenance monitoring system through the FSU immediately.
2. Abnormal alarm of the ratio of voltage drop to current (namely line impedance R) between line sections:
the voltage drop in the power supply line interval of the external network of the base station directly influences the abnormal voltage value of the input end of the base station. More often, the voltage drop between the power supply lines of the external power network of the base station is an important index for evaluating whether the power supply lines of the external power network of the base station operate normally or not and whether potential safety hazards exist or not, and whether abnormal conditions of impedance increase or even fusing caused by line aging, connection point looseness and the like exist or not.
Under the condition that the load of a base station is kept basically stable and unchanged, the currents Ia, Ib, Ic and In of each live wire and each zero wire on an external power grid three-phase power supply line connected between an external power grid lapping point and the base station are respectively set, the voltages between each live wire, zero wire and ground collected by the remote-end alternating-current intelligent switch are respectively Vaout, Vbout, Vcout and Vnout (wherein the data collected by the remote-end alternating-current intelligent switch is transmitted to a device for realizing the electrical safety monitoring of the external power grid of the base station through a 433M wireless module), the voltages between each live wire, zero wire and ground collected by the near-end alternating-current intelligent switch are respectively Vain, Vbin, Vcin and Vnin, and the line impedance R between the two ends of each live wire and zero wire is (Vout-Vin)/I. Wherein, when Vout is Vaout, Vin is Vain, and I is Ia; when Vout is Vbout, Vin is vbi, I is Ia; when Vout is Vcout, Vin is Vcin, I is Ic; when Vout is Vnout, Vin is Vnin, I is In; the line impedance R of each of the power supply lines of the external power network can thus be calculated.
Under normal conditions, the line impedance R of each power supply line is constant, if the fluctuation of the line impedance R exceeds the preset impedance range, the existence of the electrical potential safety hazard of the power supply line is determined, at the moment, the FSU can be used for giving an alarm to the operation and maintenance monitoring platform in real time, and a maintenance responsibility unit can send a person to check the power supply line immediately; furthermore, when the line impedance R of the power supply line exceeds the preset impedance range, the device for realizing the electrical safety monitoring of the external power grid of the base station can control the remote-end alternating-current intelligent switch to be switched on in real time so as to cut off the output of the external power grid ignition point until finding out and eliminating abnormal reasons, thereby avoiding the occurrence of electrical safety accidents of the line.
In some embodiments, an ambient temperature parameter may be introduced into the external power grid ignition point and the base station, respectively, so as to perform necessary correction on whether the line impedance is normal or not according to the electrical conductivity of the cable material of the power supply line under different temperature conditions.
3. And (3) alarming current abnormity at two ends of the power supply line:
suppose that the far-end ac intelligent switch respectively collects current Iaout, Ibout, Icout, Inout for each live wire and zero line in real time, and the near-end ac intelligent switch respectively collects current Iain, Ibin, Icin, ini for each live wire and zero line in real time. Then, under normal conditions, Iout ═ Iin (even if Iaout ═ Iain, Ibout ═ Ibin, Icout ═ Icin, Inout ═ Iin), once the power supply line has an abnormal condition of short circuit, power stealing and leakage, it can result in Iout > Iin (for example, Iaout > Iain, Ibout > Ibin, and/or Icout > Icin, and/or Inout > Iin), after the measurement error is eliminated, the power supply line with the abnormal condition of Iout > Iin should be alarmed by FSU, if necessary, the remote ac intelligent switch can be controlled to be opened to disconnect the output of the external power network firing point, and the operator and the maintenance responsibility unit can send a person to check the power supply line for the first time until the power supply line returns to normal.
4. External network ignition point, temperature/smoke of base station are felt and are reported an emergency and move:
the utility model discloses an it reports to the police and reports to the police, including outer electric wire netting take fire point, basic station (like the block terminal) configuration temperature sensor, smoke sense probe simultaneously, whether take place the excess temperature or the smog that electric fire leads to and report to the police in real time detection outer electric wire netting take fire point and/or the basic station, if take place excess temperature or smoke sense and report to the police when reporting to the police, just control the empty opening of intelligence switch is exchanged to the distal end, with the disconnection the output that the external electric wire netting took fire point, and/or, control the empty opening of intelligence switch is exchanged to the near-end, in order to protect the inside equipment safety of basic.
5. Abnormal fluctuation and control of electric load in the base station:
aiming at each AC electric load device in the base station, measures are needed to detect the current, the voltage, the instantaneous power and the accumulated electric quantity of the device in real time, and the current, the total current and the total power of the near-end AC intelligent switch are compared in real time, so that the power supply safety and the leakage phenomenon on an AC distribution line in the base station are avoided, the rear-end AC electric load device can be identified and disconnected in real time under the abnormal conditions of overcurrent, short circuit, electric leakage and the like, the damage of the electric load device to a greater extent is avoided, the electric safety of other load devices in the base station is avoided, and the base station is prevented from causing large-scale electric safety accidents.
6. And meanwhile, realizing remote meter reading of the base station and signal obtaining of a power generation scene of the remote oil engine:
after the electric safety monitoring of the external power grid of the base station is implemented according to the scheme, the remote-end alternating-current intelligent switch can have an electric quantity metering function, so that the functions of remote meter reading of the electricity consumption of the base station and electricity charge auditing are realized at the same time; if a scene of remote power generation is needed during long-time power failure, the power supply state of an external power grid and the alternating current frequency can be detected and identified respectively through the remote alternating current intelligent switch and the near-end alternating current intelligent switch, and the configuration can also realize the power generation credit obtaining of a remote oil engine of a base station, so that multiple purposes of one set of system are realized, the system value is developed to the maximum extent, and the investment is protected and saved.
Based on the power grid architecture shown in fig. 1, the embodiment of the present application further discloses a method for implementing electrical safety monitoring of an external power grid of a base station. In the implementation method, a base station is provided with a near-end alternating current intelligent switch, an external power grid ignition point is provided with a far-end alternating current intelligent switch, and an external power grid power supply line is connected between the base station and the external power grid ignition point. As shown in fig. 2, the implementation method includes:
201. and acquiring external commercial power parameters of an external power supply circuit between the base station and the external power supply lapping point through the remote-end alternating-current intelligent switch.
For example, the external mains supply parameters of the external power supply line between the base station and the external power supply ignition point collected by the remote ac intelligent switch can be obtained through a 433M wireless module.
202. And acquiring input electrical parameters input into the base station by the external power supply line through the near-end alternating current intelligent switch.
203. Performing comprehensive calculation according to the external mains supply parameter and the input electric parameter to determine whether the external power supply line has electrical potential safety hazards; if yes, go to step 204; if not, the flow is ended.
204. And reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the FSU.
For example, the external utility power parameters include the current of each live wire and neutral wire on the three power supply lines of the external power grid (Ia, Ib, Ic, In as described above) and the external utility voltage between each live wire and neutral wire and the ground (Vaout, Vbout, Vcout, Vnout as described above) when the load of the base station remains stable; the input electrical parameters of the base station include input voltages (Vain, Vbin, Vcin, Vnin) between each live wire and the neutral wire and between the neutral wire and the ground; the basis according to outer commercial power parameter with the input electric parameter carries out the comprehensive calculation to confirm whether outer mains supply power supply line has electric potential safety hazard, include:
calculating the difference value between the voltage of the external market and the input voltage to obtain the voltage drop of each power supply line interval; calculating the quotient of the voltage drop of the line interval and the current to obtain the line impedance R of each power supply line; and aiming at the line impedance R of each power supply line, judging whether the line impedance R of the power supply line exceeds a preset impedance range, and if so, determining that the power supply line has electrical potential safety hazards.
For example, a difference between the external mains voltage Vaout and the input voltage Vain is calculated to obtain a voltage drop (Vaout-Vain) between certain power supply line intervals; and calculating the quotient value of (Vaout-Vain) and the current Ia to obtain the line impedance R of the certain power supply line.
For another example, calculating a difference between the external mains voltage Vbout and the input voltage vbi to obtain another voltage drop (Vbout-vbi) between the power supply line intervals; and calculating a quotient value of (Vbout-Vbin) and the current Ib to obtain the line impedance R of the other power supply line.
For another example, the external utility power parameter includes a current Iout (such as Iaout, Ibout, Icout, Inout described above) collected by the remote ac intelligent switch in real time for each live line and neutral line on the three supply lines of the external power network; the input electrical parameters of the base station include current Iin (such as Iain, Ibin, Icin, and Iin described above) collected by the near-end ac intelligent switch in real time for each live wire and neutral wire on the three power supply lines of the external power grid; the basis according to outer commercial power parameter with the input electric parameter carries out the comprehensive calculation to confirm whether outer mains supply power supply line has electric potential safety hazard, include:
and judging whether the current Iout of the power supply line exceeds the Iin of the power supply line or not for each power supply line, and if so, determining that the power supply line has potential electrical safety hazards.
For example, for a certain power supply line, it is determined whether the current Iaout of the power supply line exceeds the Iain of the power supply line, and if so, it is determined that an electrical potential safety hazard exists in the certain power supply line.
For another example, for another power supply line, it is determined whether the current Ibout of the power supply line exceeds the Ibin of the power supply line, and if so, it is determined that the another power supply line has an electrical potential safety hazard.
For another example, for another power supply line, it is determined whether the current Icout of the power supply line exceeds Icin of the power supply line, and if so, it is determined that the another power supply line has an electrical safety hazard.
As an optional implementation manner, in the method for monitoring electrical safety of a base station extranet described in fig. 2, after reporting, by the FSU, alarm information for a power supply line of the extranet to an operation and maintenance monitoring platform, the method further includes:
controlling the remote AC intelligent switch to be switched on and off so as to disconnect the output of the external power grid ignition point; and/or controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
As an alternative embodiment, in the method for monitoring electrical safety of the base station external power grid depicted in fig. 2, the external power grid ignition point is provided with a remote temperature sensor and/or a remote smoke-sensing probe, and the controlling the remote ac intelligent switch to be turned off to disconnect the output of the external power grid ignition point includes:
and detecting whether the far-end temperature sensor generates an over-temperature alarm and/or the far-end smoke-sensing probe generates a smoke-sensing alarm, and if the far-end temperature sensor generates the over-temperature alarm and/or the far-end smoke-sensing probe generates the smoke-sensing alarm, controlling the remote-end alternating current intelligent switch to be switched on and off so as to disconnect the output of the external power grid ignition point.
As an alternative embodiment, in the method for monitoring electrical safety of the external power grid of the base station depicted in fig. 2, the base station is provided with a near-end temperature sensor and/or a near-end smoke-sensing probe, and the controlling the near-end ac smart switch to be turned on and off to protect the safety of the devices inside the base station includes:
and detecting whether the near-end temperature sensor generates an over-temperature alarm and/or the near-end smoke-sensing probe generates a smoke-sensing alarm, and if the near-end temperature sensor generates the over-temperature alarm and/or the near-end smoke-sensing probe generates the smoke-sensing alarm, controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
Therefore, by implementing the method described in fig. 2, not only the electrical safety hidden trouble of the power supply circuit of the external power network of the base station can be found in time to prevent the power supply circuit from being damaged, but also the alarm can be given to the power supply circuit of the external power network in time when the electrical safety hidden trouble of the power supply circuit of the external power network of the base station is found, so that a maintenance responsibility unit can send people to check the power supply circuit immediately; and the power supply can be cut off in time when the electrical safety hidden trouble of the power supply circuit of the external power network of the base station is found, so that larger electrical safety accidents are avoided.
Based on the power grid architecture shown in fig. 1, the embodiment of the present application further discloses an implementation apparatus for monitoring electrical safety of an external power grid of a base station. The base station is provided with a near-end alternating current intelligent switch, the external power grid ignition point is provided with a far-end alternating current intelligent switch, and an external power grid power supply circuit is connected between the base station and the external power grid ignition point. As shown in fig. 3, the implementation apparatus includes:
the first acquisition unit 301 is used for acquiring external mains supply parameters of an external power supply line between the base station and an external power supply ignition point through the remote-end alternating-current intelligent switch;
a second collecting unit 302, configured to collect, through the near-end ac intelligent switch, an input electrical parameter input to the base station by the external power supply line;
the hidden danger determining unit 303 is configured to perform comprehensive calculation according to the external mains supply parameter and the input electric parameter to determine whether an electrical potential safety hazard exists in the external power supply line;
and the alarm unit 304 is configured to report alarm information for the external power supply line to the operation and maintenance monitoring platform through the FSU after the hidden danger determining unit 303 determines that the external power supply line has an electrical potential safety hazard.
For example, the external utility power parameters include the current of each live wire and neutral wire on the three power supply lines of the external power grid (Ia, Ib, Ic, In as described above) and the external utility voltage between each live wire and neutral wire and the ground (Vaout, Vbout, Vcout, Vnout as described above) when the load of the base station remains stable; the input electrical parameters of the base station include input voltages (Vain, Vbin, Vcin, Vnin) between each live wire and the neutral wire and between the neutral wire and the ground; the hidden danger determining unit 303 is specifically configured to:
calculating the difference value between the voltage of the external market and the input voltage to obtain the voltage drop of each power supply line interval;
calculating the quotient of the voltage drop of the line interval and the current to obtain the line impedance R of each power supply line;
and aiming at the line impedance R of each power supply line, judging whether the line impedance R of the power supply line exceeds a preset impedance range, and if so, determining that the power supply line has electrical potential safety hazards.
For example, a difference between the external mains voltage Vaout and the input voltage Vain is calculated to obtain a voltage drop (Vaout-Vain) between certain power supply line intervals; and calculating the quotient value of (Vaout-Vain) and the current Ia to obtain the line impedance R of the certain power supply line.
For another example, calculating a difference between the external mains voltage Vbout and the input voltage vbi to obtain another voltage drop (Vbout-vbi) between the power supply line intervals; and calculating a quotient value of (Vbout-Vbin) and the current Ib to obtain the line impedance R of the other power supply line.
For another example, the external utility power parameter includes a current Iout (such as Iaout, Ibout, Icout, Inout described above) collected by the remote ac intelligent switch in real time for each live line and neutral line on the three supply lines of the external power network; the input electrical parameters of the base station include current Iin (such as Iain, Ibin, Icin, and Iin described above) collected by the near-end ac intelligent switch in real time for each live wire and neutral wire on the three power supply lines of the external power grid; the hidden danger determining unit 303 is specifically configured to:
and judging whether the current Iout of the power supply line exceeds the Iin of the power supply line or not for each power supply line, and if so, determining that the power supply line has potential electrical safety hazards.
For example, for a certain power supply line, it is determined whether the current Iaout of the power supply line exceeds the Iain of the power supply line, and if so, it is determined that an electrical potential safety hazard exists in the certain power supply line.
For another example, for another power supply line, it is determined whether the current Ibout of the power supply line exceeds the Ibin of the power supply line, and if so, it is determined that the another power supply line has an electrical potential safety hazard.
For another example, for another power supply line, it is determined whether the current Icout of the power supply line exceeds Icin of the power supply line, and if so, it is determined that the another power supply line has an electrical safety hazard.
As an optional implementation manner, in the apparatus for implementing electrical safety monitoring of an external base station power grid described in fig. 3, the apparatus further includes:
the control unit 305 is configured to control the remote ac intelligent switch to be turned on and off to disconnect the output of the external power grid ignition point after the alarm unit reports alarm information for the external power grid power supply line to the operation and maintenance monitoring platform through the FSU; and/or controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
As an alternative embodiment, in the application of the device for implementing electrical safety monitoring of an external power grid of a base station depicted in fig. 3, the external power grid ignition point is provided with a remote temperature sensor and/or a remote smoke-sensing probe, and the control unit 305 controls the remote ac intelligent switch to be turned off, so as to disconnect the output of the external power grid ignition point specifically:
and detecting whether the far-end temperature sensor generates an over-temperature alarm and/or the far-end smoke-sensing probe generates a smoke-sensing alarm, and controlling the remote alternating-current intelligent switch to be switched on so as to disconnect the output of the external power grid ignition point.
As an alternative embodiment, in the application of the device for monitoring electrical safety of an external power grid of a base station depicted in fig. 3, the base station is provided with a near-end temperature sensor and/or a near-end smoke-sensing probe, and the control unit 305 controls the remote ac intelligent switch to be turned on or off, so as to disconnect the output of the external power grid ignition point, specifically:
and detecting whether the near-end temperature sensor generates an over-temperature alarm and/or the near-end smoke-sensing probe generates a smoke-sensing alarm, and if the near-end temperature sensor generates the over-temperature alarm and/or the near-end smoke-sensing probe generates the smoke-sensing alarm, controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
Therefore, the implementation of the device described in fig. 3 can not only discover the electrical potential safety hazard of the power supply circuit of the external power network of the base station in time and prevent the power supply circuit from being damaged, but also alarm the power supply circuit of the external power network in time when the electrical potential safety hazard of the power supply circuit of the external power network of the base station is discovered, so that a maintenance responsibility unit can send people to check the power supply circuit immediately; and the power supply can be cut off in time when the electrical safety hidden trouble of the power supply circuit of the external power network of the base station is found, so that larger electrical safety accidents are avoided.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present disclosure. The base station shown in fig. 4 may include the device for implementing electrical safety monitoring of the extrabase station power grid described in the foregoing embodiments.
The base station described in fig. 4 can not only discover the electrical potential safety hazard of the power supply circuit of the external power network of the base station in time to prevent the power supply circuit from being damaged, but also alarm the power supply circuit of the external power network in time when the electrical potential safety hazard of the power supply circuit of the external power network of the base station is discovered, so that a maintenance responsibility unit can send people to check the power supply circuit immediately; and the power supply can be cut off in time when the electrical safety hidden trouble of the power supply circuit of the external power network of the base station is found, so that larger electrical safety accidents are avoided.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (13)
1. A method for realizing electric safety monitoring of a base station external power grid is characterized in that a base station is provided with a near-end alternating current intelligent switch, and an external power grid ignition point is provided with a far-end alternating current intelligent switch, and the method comprises the following steps:
acquiring external mains supply parameters of an external power supply line between the base station and the external power supply line ignition point through the remote-end alternating-current intelligent switch;
acquiring input electrical parameters input into the base station by the external power supply line through the near-end alternating current intelligent switch;
performing comprehensive calculation according to the external mains supply parameter and the input electric parameter to determine whether the external power supply line has electrical potential safety hazards; and if the external power supply line exists, reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the dynamic environment monitoring unit FSU.
2. The method according to claim 1, wherein the external mains parameters include current of each live wire and neutral wire on the three power supply lines of the external power network, and external mains voltage between each live wire and the neutral wire and between the neutral wire and ground when the load of the base station is kept stable; the input electrical parameters of the base station comprise input voltage between each live wire and a zero line and between the zero line and the ground; the basis according to outer commercial power parameter with the input electric parameter carries out the comprehensive calculation to confirm whether outer mains supply power supply line has electric potential safety hazard, include:
calculating the difference value between the voltage of the external market and the input voltage to obtain the voltage drop of each power supply line interval;
calculating the quotient of the voltage drop of the line interval and the current to obtain the line impedance R of each power supply line;
and aiming at the line impedance R of each power supply line, judging whether the line impedance R of the power supply line exceeds a preset impedance range, and if so, determining that the power supply line has electrical potential safety hazards.
3. The method according to claim 1, wherein the external utility power parameter is a current Iout collected by the remote ac intelligent switch in real time for each live line and neutral line on the three power supply lines of the external power network; the input electrical parameters of the base station comprise current Iin acquired by the near-end alternating current intelligent switch in real time for each live wire and zero line on the three power supply circuits of the external power grid; the basis according to outer commercial power parameter with the input electric parameter carries out the comprehensive calculation to confirm whether outer mains supply power supply line has electric potential safety hazard, include:
and judging whether the current Iout of the power supply line exceeds the Iin of the power supply line or not for each power supply line, and if so, determining that the power supply line has potential electrical safety hazards.
4. The method for implementing electrical safety monitoring of the base station extranet according to claim 1, 2 or 3, wherein after the reporting the alarm information for the extranet power supply line to the operation and maintenance monitoring platform by the dynamic environment monitoring unit FSU, the method further comprises:
controlling the remote AC intelligent switch to be switched on and off so as to disconnect the output of the external power grid ignition point; and/or controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
5. The method for implementing electrical safety monitoring of the external power grid of the base station according to claim 4, wherein the external power grid ignition point is provided with a remote temperature sensor and/or a remote smoke-sensing probe, and the step of controlling the remote ac intelligent switch to be turned off to disconnect the output of the external power grid ignition point comprises the following steps:
and detecting whether the far-end temperature sensor generates an over-temperature alarm and/or the far-end smoke-sensing probe generates a smoke-sensing alarm, and if the far-end temperature sensor generates the over-temperature alarm and/or the far-end smoke-sensing probe generates the smoke-sensing alarm, controlling the remote-end alternating current intelligent switch to be switched on and off so as to disconnect the output of the external power grid ignition point.
6. The method for monitoring the electrical safety of the external power grid of the base station according to claim 5, wherein the base station is provided with a near-end temperature sensor and/or a near-end smoke-sensing probe, and the controlling of the near-end alternating current intelligent switch to be turned on and off to protect the safety of the equipment inside the base station comprises the following steps:
and detecting whether the near-end temperature sensor generates an over-temperature alarm and/or the near-end smoke-sensing probe generates a smoke-sensing alarm, and if the near-end temperature sensor generates the over-temperature alarm and/or the near-end smoke-sensing probe generates the smoke-sensing alarm, controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
7. The utility model provides a realization device of basic station external power grid electrical safety control, its characterized in that, the base station is equipped with near-end and exchanges intelligent switch, and external power grid takes a fire point and is equipped with far-end and exchanges intelligent switch, realization device includes:
the first acquisition unit is used for acquiring external mains supply parameters of an external power supply line between the base station and an external power supply ignition point through the remote-end alternating-current intelligent switch;
the second acquisition unit is used for acquiring input electrical parameters input into the base station by the external power supply line through the near-end alternating current intelligent switch;
the hidden danger determining unit is used for performing comprehensive calculation according to the external mains supply parameter and the input electric parameter so as to determine whether the external power supply line has an electrical potential safety hazard;
and the alarm unit is used for reporting alarm information aiming at the external power supply line to an operation and maintenance monitoring platform through the dynamic environment monitoring unit FSU after the hidden danger determining unit determines that the external power supply line has the electrical potential safety hazard.
8. The apparatus of claim 7, wherein the external mains parameters include current of each live wire and neutral wire on the three power supply lines of the external power network, and external mains voltage between each live wire and the neutral wire and ground when the load of the base station is kept stable; the input electrical parameters of the base station comprise input voltage between each live wire and a zero line and between the zero line and the ground; the hidden danger determining unit is specifically configured to:
calculating the difference value between the voltage of the external market and the input voltage to obtain the voltage drop of each power supply line interval;
calculating the quotient of the voltage drop of the line interval and the current to obtain the line impedance R of each power supply line;
and aiming at the line impedance R of each power supply line, judging whether the line impedance R of the power supply line exceeds a preset impedance range, and if so, determining that the power supply line has electrical potential safety hazards.
9. The device for monitoring the electrical safety of the external power network of the base station according to claim 7, wherein the external commercial power parameter includes a current Iout collected by the remote AC intelligent switch in real time for each live wire and zero line on the three power supply lines of the external power network; the input electrical parameters of the base station comprise current Iin acquired by the near-end alternating current intelligent switch in real time for each live wire and zero line on the three power supply circuits of the external power grid; the hidden danger determining unit is specifically configured to:
and judging whether the current Iout of the power supply line exceeds the Iin of the power supply line or not for each power supply line, and if so, determining that the power supply line has potential electrical safety hazards.
10. The device for monitoring electrical safety of external network of base station according to claim 7, 8 or 9, further comprising:
the control unit is used for controlling the remote-end alternating-current intelligent switch to be switched on and off after the alarm unit reports alarm information aiming at the external power grid power supply line to the operation and maintenance monitoring platform through the dynamic environment monitoring unit FSU so as to cut off the output of the external power grid ignition point; and/or controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
11. The device for monitoring the electrical safety of the external power grid of the base station as claimed in claim 10, wherein the external power grid ignition point is provided with a remote temperature sensor and/or a remote smoke-sensitive probe, and the control unit controls the remote ac intelligent switch to be turned on or off, so as to disconnect the output of the external power grid ignition point as follows:
and detecting whether the far-end temperature sensor generates an over-temperature alarm and/or the far-end smoke-sensing probe generates a smoke-sensing alarm, and controlling the remote alternating-current intelligent switch to be switched on so as to disconnect the output of the external power grid ignition point.
12. The method for implementing electrical safety monitoring of the external power grid of the base station according to claim 10, wherein the base station is provided with a near-end temperature sensor and/or a near-end smoke-sensitive probe, and the control unit controls the remote ac intelligent switch to be turned on and off, so as to disconnect the output of the external power grid ignition point, specifically:
and detecting whether the near-end temperature sensor generates an over-temperature alarm and/or the near-end smoke-sensing probe generates a smoke-sensing alarm, and if the near-end temperature sensor generates the over-temperature alarm and/or the near-end smoke-sensing probe generates the smoke-sensing alarm, controlling the near-end alternating current intelligent switch to be switched on and off so as to protect the safety of equipment in the base station.
13. A base station, characterized in that it comprises means for implementing electrical safety monitoring of an external network of a base station according to any one of claims 7 to 12.
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| CN202010511613.7A CN111579934A (en) | 2020-06-08 | 2020-06-08 | Method and device for realizing electric safety monitoring of external power network of base station and base station |
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Address after: Room 101, floors 1-3, building 14, North District, yard 9, dongran North Street, Haidian District, Beijing 100029 Applicant after: CHINA TOWER Co.,Ltd. Address before: 100142 19th floor, 73 Fucheng Road, Haidian District, Beijing Applicant before: CHINA TOWER Co.,Ltd. |
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