CN115169976A - Reliability evaluation method and device for base station power supply system - Google Patents

Reliability evaluation method and device for base station power supply system Download PDF

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Publication number
CN115169976A
CN115169976A CN202210926869.3A CN202210926869A CN115169976A CN 115169976 A CN115169976 A CN 115169976A CN 202210926869 A CN202210926869 A CN 202210926869A CN 115169976 A CN115169976 A CN 115169976A
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power supply
base station
supply system
station power
condition
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Inventor
黄欢
冯圣勇
李斌
肖艳红
刘磊
余思伍
毛先胤
曾华荣
张迅
吴建蓉
张伟
张英
李恩文
厉天威
潘锐健
范才进
李敏
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CSG Electric Power Research Institute
Guizhou Power Grid Co Ltd
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CSG Electric Power Research Institute
Guizhou Power Grid Co Ltd
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Priority to CN202210926869.3A priority Critical patent/CN115169976A/en
Priority to PCT/CN2022/123206 priority patent/WO2024027008A1/en
Publication of CN115169976A publication Critical patent/CN115169976A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Electricity, gas or water supply
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • 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
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application discloses a reliability evaluation method and a device of a base station power supply system, wherein the method comprises the following steps: judging whether the power supply mode of the base station power supply system is a direct mains supply mode or not, if not, analyzing an external power supply line of the base station power supply system, the voltage of the external power supply line, the number of monthly faults, the fault duration time, the remote power supply distance, whether a primary DC-DC power supply is arranged or not, and obtaining a reliability grade, if so, analyzing whether a special transformer and an uninterruptible power supply are installed on the base station power supply system or not, and the residual capacity of a storage battery after the preset operation time is long, and obtaining the reliability grade, thereby obtaining whether the base station power supply system is reliable or not. Therefore, by analyzing various reliability influence factors of the base station power supply system, the reliability of the base station power supply system is effectively evaluated, and the risk that the base station power supply system faces power failure can be accurately analyzed, so that the operation safety of the base station power supply system can be improved, and the stable operation of the base station power supply system is guaranteed.

Description

Reliability evaluation method and device for base station power supply system
Technical Field
The present application relates to the field of power supply quality evaluation, and more particularly, to a reliability evaluation method and apparatus for a base station power supply system.
Background
With the continuous increase of power consumption, more and more base station power supply systems need to be established, and in the internet era, the 5G base station power supply system becomes the mainstream of the current base station power supply system. Compared with the traditional 4G base station power supply system, the 5G base station power supply system mainly takes three-level structures of a wired protocol stack, a wireless protocol stack and an active antenna as main parts, and can process information with high real-time performance and low real-time performance.
At present, an active antenna structure of a 5G base station power supply system adopts a 64T/64R antenna array, which can expand information capacity of a channel, but consumes more power resources at the same time, so that power consumption of the 5G base station power supply system is abnormally and greatly increased, and the running state of the 5G base station power supply system is highly unstable.
At present, when a base station power supply system builder builds a base station power supply system, the reliability of the base station power supply system cannot be evaluated, so that the base station power supply system is in a risk of power failure, and the operation safety of the base station power supply system is low.
Disclosure of Invention
In view of the above problems, the present application is provided to provide a method and an apparatus for evaluating reliability of a base station power supply system, so as to improve operation safety of the base station power supply system and ensure stable operation of the base station power supply system.
In order to achieve the above object, the following specific solutions are proposed:
a reliability evaluation method of a base station power supply system comprises the following steps:
judging whether the power supply mode of a base station power supply system is a direct mains supply mode or not;
if the power supply mode of the base station power supply system is not a direct mains supply mode, judging whether the base station power supply system simultaneously meets a first condition and a second condition, wherein the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, the voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that the monthly mean fault frequency of the base station power supply system is less than a preset fault frequency, and the duration time of each fault of the base station power supply system is not less than a preset duration;
if the base station power supply system meets the first condition and the second condition at the same time, calculating a far-end power supply limit value of the base station power supply system, and judging whether the base station power supply system meets a third condition or a fourth condition, wherein the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value, and the fourth condition is that a primary DC-DC power supply is installed on the base station power supply system;
if the base station power supply system meets the third condition or the fourth condition, determining that the reliability of the base station power supply system is a first level;
if the power supply mode of the base station power supply system is a direct mains supply mode, judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, wherein the fifth condition is that the base station power supply system is provided with a transformer only adapted to a base station, the sixth condition is that the base station power supply system is provided with an uninterruptible power supply, the seventh condition is that the residual capacity of a storage battery of the base station power supply system after a preset operation time is greater than a limit threshold, and the limit threshold is that:
Figure BDA0003780001130000021
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
and if the base station power supply system simultaneously meets the fifth condition, the sixth condition and the seventh condition, determining that the reliability of the base station power supply system is in a first level.
Optionally, the method further includes:
and if the base station power supply system does not meet the first condition and the second condition at the same time, determining that the reliability of the base station power supply system is in a second level.
Optionally, the method further includes:
and if the base station power supply system does not meet the third condition and the fourth condition at the same time, determining that the reliability of the base station power supply system is in a second level.
Optionally, the method further includes:
and if the base station power supply system does not meet the fifth condition, the sixth condition and the seventh condition at the same time, determining that the reliability of the base station power supply system is in a second level.
Optionally, calculating a far-end power supply limit value of the base station power supply system includes:
and determining the far-end power supply limit value of the base station power supply system according to the power supply conversion efficiency of the far-end power supply line of the base station power supply system, the power supply voltage of the base station power supply system, the far-end input voltage of the base station power supply system, the total load power of the far-end equipment of the base station power supply system and the resistivity of the far-end power supply transmission wire of the base station power supply system.
Optionally, determining the far-end power supply limit value of the base station power supply system according to the power conversion efficiency of the far-end power supply line of the base station power supply system, the power supply voltage of the base station power supply system, the far-end input voltage of the base station power supply system, the total load power of the far-end device of the base station power supply system, and the resistivity of the far-end power supply transmission wire of the base station power supply system includes:
calculating a remote power supply limit value of the base station power supply system using the following formula:
Figure BDA0003780001130000031
wherein L is the far-end power supply limit value of the base station power supply system, and S is the power supply conversion effect of the far-end power supply circuit of the base station power supply systemRate, U S Supply voltage, U, for the base station power supply system 0 A remote input voltage, P, for the base station power supply system 0 And p is the resistivity of the far-end power supply transmission wire of the base station power supply system.
A reliability evaluation device of a base station power supply system comprises:
the system comprises a commercial power direct supply judging unit, a first dual-condition judging unit and a third dual-condition judging unit, wherein the commercial power direct supply judging unit is used for judging whether the power supply mode of a base station power supply system is a commercial power direct supply mode, if so, the first dual-condition judging unit is executed, and if not, the third dual-condition judging unit is executed;
the first dual-condition judgment unit is used for judging whether the base station power supply system meets a first condition and a second condition at the same time, if so, the second dual-condition judgment unit is executed, the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, the voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that the monthly mean fault frequency of the base station power supply system is less than a preset fault frequency, and the duration of each fault of the base station power supply system is not less than a preset duration;
the second dual-condition judging unit is used for calculating a far-end power supply limit value of the base station power supply system and judging whether the base station power supply system meets a third condition or a fourth condition, if so, the first evaluating unit is executed, the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value, and the fourth condition is that a primary DC-DC power supply is installed on the base station power supply system;
the first evaluation unit is used for determining the reliability of the base station power supply system to be a first grade;
the base station power supply system comprises a three-condition judging unit, a second evaluating unit and a third evaluating unit, wherein the three-condition judging unit is used for judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, if yes, the second evaluating unit is executed, the fifth condition is that the base station power supply system is provided with a transformer only adaptive to a base station, the sixth condition is that the base station power supply system is provided with an uninterruptible power supply, the seventh condition is that the residual capacity of a storage battery of the base station power supply system after the preset operation time is greater than a limit threshold, and the limit threshold is:
Figure BDA0003780001130000041
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
and the second evaluation unit is used for determining the reliability of the base station power supply system to be a first grade.
Optionally, the apparatus further comprises:
and the third evaluation unit is used for determining that the reliability of the base station power supply system is in a second level if the judgment result of the first dual-condition judgment unit is negative.
Optionally, the apparatus further comprises:
and the fourth evaluation unit is used for determining that the reliability of the base station power supply system is in a second level if the judgment result of the second dual-condition judgment unit is negative.
Optionally, the apparatus further comprises:
and the fifth evaluation unit is used for determining that the reliability of the base station power supply system is in a second level if the judgment result of the three-condition judgment unit is negative.
Optionally, the calculating, by the second dual-condition determining unit, a far-end power supply limit value of the base station power supply system includes:
the second dual-condition judging unit determines the far-end power supply limit value of the base station power supply system according to the power supply conversion efficiency of the far-end power supply line of the base station power supply system, the power supply voltage of the base station power supply system, the far-end input voltage of the base station power supply system, the total load power of the far-end equipment of the base station power supply system and the resistivity of the far-end power supply transmission lead of the base station power supply system.
Optionally, the determining, by the second dual-condition determining unit, a far-end power supply limit of the base station power supply system according to power conversion efficiency of a far-end power supply line of the base station power supply system, a power supply voltage of the base station power supply system, a far-end input voltage of the base station power supply system, total load power of a far-end device of the base station power supply system, and resistivity of a far-end power supply transmission wire of the base station power supply system includes:
the second dual-condition judgment unit calculates a far-end power supply limit value of the base station power supply system by using the following formula:
Figure BDA0003780001130000051
wherein L is the far-end power supply limit value of the base station power supply system, S is the power supply conversion efficiency of the far-end power supply line of the base station power supply system, and U is the power supply conversion efficiency of the far-end power supply line of the base station power supply system S Supply voltage, U, for the base station power supply system 0 A remote input voltage, P, for the base station power supply system 0 And p is the resistivity of the far-end power supply transmission wire of the base station power supply system.
By means of the technical scheme, whether the power supply mode of the base station power supply system is a direct mains supply mode or not is analyzed, when the analysis result is not the direct mains supply mode, partial reliability influence factors of the base station power supply system are further analyzed, the reliability influence factors are external power supply lines of the base station power supply system, the voltage of the external power supply lines, the number of monthly mean faults, the duration time of each fault, the far-end power supply distance and whether a primary DC-DC power supply is installed or not, whether the reliability of the base station power supply system is in a first level or not is obtained, when the analysis result is the direct mains supply mode, the reliability influence factors of the other part of the base station power supply system are further analyzed, whether a transformer only adaptive to the base station is installed or not is determined, whether an uninterruptible power supply is installed or not is determined, and whether the reliability of the base station power supply system is in the first level or not is obtained through the residual capacity of a storage battery after the preset running time, so that whether the base station power supply system is reliable or not is obtained. Therefore, the reliability of the base station power supply system is effectively evaluated by analyzing a plurality of reliability influence factors of the base station power supply system, the risk that the base station power supply system faces power failure can be accurately analyzed, the operation safety of the base station power supply system can be improved, and the stable operation of the base station power supply system is guaranteed.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flowchart illustrating a process for evaluating reliability of a power supply system of a base station according to an embodiment of the present disclosure;
fig. 2 is a schematic flowchart of another process for evaluating reliability of a base station power supply system according to an embodiment of the present application;
fig. 3 is a schematic flowchart of another method for evaluating reliability of a base station power supply system according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of another method for evaluating reliability of a base station power supply system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an apparatus for evaluating reliability of a base station power supply system according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an apparatus for evaluating reliability of a base station power supply system according to 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 scheme can be realized based on a terminal with data processing capacity, and the terminal can be a computer, a server, a cloud terminal and the like.
Next, as described with reference to fig. 1, the reliability evaluation method of the base station power supply system of the present application may include the following steps:
step S101, determining whether the power supply mode of the base station power supply system is a direct mains supply mode, if not, performing step S102, and if so, performing step S105.
Specifically, whether the power supply mode of the base station power supply system is the direct mains supply mode or not can be judged by monitoring the mode that the base station power supply system is led in through the mains supply, and whether the mode that the base station power supply system is led in through the mains supply or not can be judged by inquiring the design file laid on the ground grid so as to judge whether the power supply mode of the base station power supply system is the direct mains supply mode or not.
Step S102, judging whether the base station power supply system simultaneously meets a first condition and a second condition, if so, executing step S103.
The first condition is that an external power supply circuit of the base station power supply system is two independent external power supply circuits, and the voltage of the external power supply circuit of the base station power supply system is a preset external power supply voltage. The second condition is that the monthly mean time of failure of the base station power supply system is less than the preset failure times, and the duration of each failure of the base station power supply system is not less than the preset duration.
Specifically, the preset external power supply voltage may represent a standard value of the voltage of the external power supply line, and the preset external power supply voltage may be customized, for example, the preset external power supply voltage has a value of 385V. The preset failure times can represent the maximum value of the monthly mean failure times in the reliability standard of the power supply system of the base station, and the preset failure times can be self-defined, for example, the preset failure times are 3.5. The preset time duration may represent a maximum value of a duration of each fault in the reliability standard of the power supply system of the base station, and the preset time duration may be self-defined, for example, the preset time duration is 6h.
It can be understood that, when the external power supply line of the base station power supply system is in the form of two independent lines, and the voltage of the external power supply line is 385V, the base station power supply system meets the requirement of the reliability standard. Meanwhile, when the number of monthly failures of the base station power supply system is less than 3.5 and the duration of each failure is less than 6 hours, the base station power supply system meets the necessary conditions of the reliability standard.
Step S103, calculating a far-end power supply limit value of the base station power supply system, and judging whether the base station power supply system meets a third condition or a fourth condition, if so, executing step S104. Whether the base station power supply system satisfies a third condition or a fourth condition.
And the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value. And the fourth condition is that the base station power supply system is provided with a primary DC-DC power supply.
It can be understood that when the remote power supply distance of the base station power supply system is less than the remote power supply limit value, or the base station power supply system is provided with a primary DC-DC power supply, the base station power supply system meets the necessary condition of the reliability standard.
And step S104, determining the reliability of the base station power supply system to be a first grade.
Specifically, the first grade can indicate that the operation safety coefficient of the base station power supply system reaches the standard, and is reliable.
It can be understood that, when the power supply mode of the base station power supply system is not the direct mains supply mode, the first condition and the second condition need to be satisfied simultaneously, and the third condition or the fourth condition needs to be satisfied, the base station power supply system is evaluated as a more reliable reliability level.
And step S105, judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, if so, executing step S106.
Wherein the fifth condition is that the base station power supply system is equipped with a transformer only adapted to a base station. And the sixth condition is that the base station power supply system is provided with an uninterrupted power supply. And the seventh condition is that the residual capacity of a storage battery of the base station power supply system after the preset operation time is greater than a limit value threshold value.
The limit threshold may be represented by the following equation:
Figure BDA0003780001130000081
and the storage battery is used for storing the load discharge current of the storage battery, the discharge capacity coefficient of the storage battery is obtained by the calculation of the load discharge current of the storage battery, and the ambient temperature value of the storage battery is obtained by the calculation of the discharge capacity coefficient of the storage battery.
Specifically, the Uninterruptible Power Supply may be an UPS (Uninterruptible Power Supply). The preset operation time duration may represent a standard time duration for evaluating operation of a storage battery maintaining device of the base station power supply system, and may be self-defined, for example, the preset operation time duration is 6 hours.
It can be understood that the base station power supply system meets the necessary condition of the reliability standard when the base station power supply system is provided with a transformer only adapted to the base station and a UPS power supply source, and the residual capacity of the storage battery after 6 hours of operation is greater than a limit threshold.
And S106, determining the reliability of the base station power supply system to be a first grade.
It can be understood that when the power supply mode of the base station power supply system is the direct mains supply mode, the fifth condition, the sixth condition and the seventh condition need to be satisfied at the same time, and the base station power supply system is evaluated as a more reliable reliability level.
The method for evaluating reliability of a base station power supply system provided by this embodiment further analyzes partial reliability influence factors of the base station power supply system by analyzing whether a power supply mode of the base station power supply system is a direct mains supply mode, when an analysis result is not the direct mains supply mode, the reliability influence factors are external power supply lines of the base station power supply system, voltage of the external power supply lines, monthly mean failure times, duration of each failure, a remote power supply distance, whether a primary DC-DC power supply is installed, and whether reliability of the base station power supply system is a first level, and when the analysis result is the direct mains supply mode, further analyzes another partial reliability influence factors of the base station power supply system, whether a transformer only adapted to a base station is installed, whether an uninterruptible power supply is installed, and remaining capacity of a storage battery after a preset operation duration, to determine whether reliability of the base station power supply system is the first level, thereby determining whether the base station power supply system is reliable. Therefore, the reliability of the base station power supply system is effectively evaluated by analyzing a plurality of reliability influence factors of the base station power supply system, the risk that the base station power supply system faces power failure can be accurately analyzed, the operation safety of the base station power supply system can be improved, and the stable operation of the base station power supply system is guaranteed.
Considering that the form of the external power supply line of the base station power supply system, the voltage of the external power supply line of the base station power supply system, the number of times of failure of the base station power supply system, and the duration of failure are all key factors for safe and stable operation of the base station power supply system, and affect the reliability of the base station power supply system, in some embodiments of the present application, referring to fig. 2, the provided reliability evaluation method of the base station power supply system may include:
step S201, determining whether the power supply mode of the base station power supply system is a direct mains supply mode, if not, performing step S202, and if so, performing step S205.
Step S202, determining whether the base station power supply system simultaneously satisfies a first condition and a second condition, if yes, executing step S203, and if not, executing step S207.
Step 203, calculating a far-end power supply limit value of the base station power supply system, and judging whether the base station power supply system meets a third condition or a fourth condition, if so, executing step 204.
And step S204, determining the reliability of the base station power supply system to be a first grade.
Step S205, determining whether the base station power supply system simultaneously satisfies a fifth condition, a sixth condition and a seventh condition, if yes, executing step S206.
And step S206, determining the reliability of the base station power supply system to be a first grade.
The steps S201 to S206 correspond to the steps S101 to S106 in the previous embodiment one to one, and the above description is referred to for details, which is not repeated herein.
And step S207, determining the reliability of the base station power supply system to be a second level.
Specifically, when the base station power supply system does not satisfy the first condition, or the base station power supply system does not satisfy the second condition, it may be determined that the reliability of the base station power supply system is of the second level.
The second level can indicate that the operation safety coefficient of the base station power supply system does not reach the standard and is unreliable.
It can be understood that, when the external power supply line of the base station power supply system is not in two independent ways, or the voltage of the external power supply line is not 385V, or the number of monthly failures of the base station power supply system is not less than 3.5, or the duration of the failure is not less than 6 hours, and the base station power supply system does not meet at least one necessary condition of the reliability standard, the reliability of the base station power supply system can be determined to be in the second level.
According to the reliability evaluation method for the base station power supply system, reliability influence factors such as the form of the external power supply line of the base station power supply system, the voltage of the external power supply line of the base station power supply system, the failure times and the failure duration of the base station power supply system are analyzed, so that the reliability of the base station power supply system is effectively evaluated, the risk that the base station power supply system faces power failure can be accurately analyzed, the operation safety of the base station power supply system can be improved, and the stable operation of the base station power supply system is guaranteed.
In consideration of the fact that the remote power supply distance of the base station power supply system and the power supply of the base station power supply system are key factors for safe and stable operation of the base station power supply system, and have an influence on the reliability of the base station power supply system, in some embodiments of the present application, referring to fig. 3, the provided reliability evaluation method for the base station power supply system may include:
step S301, determining whether the power supply mode of the base station power supply system is the direct mains supply mode, if not, performing step S302, and if so, performing step S305.
Step S302, determining whether the base station power supply system simultaneously satisfies a first condition and a second condition, if yes, executing step S303.
Step S303, calculating a far-end power supply limit of the base station power supply system, and determining whether the base station power supply system meets a third condition or a fourth condition, if yes, performing step S304, and if no, performing step S308.
And step S304, determining the reliability of the base station power supply system to be a first grade.
Step S305, determining whether the base station power supply system simultaneously satisfies a fifth condition, a sixth condition and a seventh condition, if yes, executing step S306.
And S306, determining the reliability of the base station power supply system to be a first grade.
And step S307, determining the reliability of the base station power supply system to be a second grade.
The steps S301 to S307 correspond to the steps S201 to S207 in the foregoing embodiment one to one, and reference is made to the foregoing description for details, which are not repeated herein.
And step S308, determining the reliability of the base station power supply system to be a second grade.
It can be understood that, when the remote power supply distance of the base station power supply system is not less than the remote power supply limit value, and the base station power supply system is not provided with a primary DC-DC power supply, the base station power supply system does not meet at least one requirement of the reliability standard, and the reliability of the base station power supply system can be determined to be a second level.
According to the reliability evaluation method for the base station power supply system, the reliability influence factors of the far-end power supply distance of the base station power supply system and the power supply of the base station power supply system are analyzed, so that the reliability of the base station power supply system is effectively evaluated, the risk that the base station power supply system faces power failure can be accurately analyzed, the operation safety of the base station power supply system can be improved, and the stable operation of the base station power supply system is guaranteed.
Considering that the transformer of the base station power supply system, the power supply of the base station power supply system, and the remaining capacity of the storage battery after operating for 6 hours are all key factors for safe and stable operation of the base station power supply system, and affect the reliability of the base station power supply system, in some embodiments of the present application, referring to fig. 4, the provided reliability evaluation method of the base station power supply system may include:
step S401, determining whether the power supply mode of the base station power supply system is a direct mains supply mode, if not, executing step S402, and if so, executing step S405.
Step S402, judging whether the base station power supply system simultaneously meets a first condition and a second condition, if so, executing step S403.
Step S403, calculating a far-end power supply limit of the base station power supply system, and determining whether the base station power supply system satisfies a third condition or a fourth condition, if yes, performing step S404, and if no, performing step S408.
And S404, determining the reliability of the base station power supply system to be a first grade.
Step S405, determining whether the base station power supply system simultaneously satisfies a fifth condition, a sixth condition and a seventh condition, if yes, executing step S406, and if not, executing step S409.
And step S406, determining the reliability of the base station power supply system to be a first grade.
And step S407, determining the reliability of the base station power supply system to be a second level.
And step S408, determining the reliability of the base station power supply system to be a second grade.
The steps S401 to S408 correspond to the steps S301 to S308 in the previous embodiment one to one, and refer to the foregoing description in detail, which is not described herein again.
And step S409, determining the reliability of the base station power supply system to be a second grade.
It is understood that when the base station power supply system is not equipped with a transformer only adapted to the base station, or is not equipped with a UPS power supply, or the remaining capacity of the storage battery after a preset operation time period does not reach the threshold value, then the base station power supply system does not meet at least one requirement of the reliability standard, and the reliability of the base station power supply system may be determined to be at the second level.
According to the reliability evaluation method for the base station power supply system, reliability influence factors such as a transformer of the base station power supply system, a power supply of the base station power supply system and residual capacity of a storage battery after the storage battery operates for 6 hours are analyzed, so that the reliability of the base station power supply system is effectively evaluated, the risk that the base station power supply system faces power failure can be accurately analyzed, the operation safety of the base station power supply system can be improved, and the stable operation of the base station power supply system is guaranteed.
In some embodiments of the present application, a process for calculating a remote power supply limit value of the base station power supply system mentioned in the above embodiments is described, and the process may include:
and determining the far-end power supply limit value of the base station power supply system according to the power supply conversion efficiency of the far-end power supply line of the base station power supply system, the power supply voltage of the base station power supply system, the far-end input voltage of the base station power supply system, the total load power of the far-end equipment of the base station power supply system and the resistivity of the far-end power supply transmission wire of the base station power supply system.
Specifically, the remote power supply limit of the base station power supply system may be calculated by using the following formula:
Figure BDA0003780001130000131
wherein L is the far-end power supply limit value of the base station power supply system, S is the power supply conversion efficiency of the far-end power supply line of the base station power supply system, and U is the power supply conversion efficiency of the far-end power supply line of the base station power supply system S Supply voltage, U, for the base station power supply system 0 A remote input voltage, P, for the base station power supply system 0 The total load power of the remote equipment of the base station power supply system is represented by rhoThe resistivity of the transmission line.
The following describes an apparatus for implementing reliability evaluation of a power supply system of a base station according to an embodiment of the present application, and the apparatus for implementing reliability evaluation of a power supply system described below and the method for implementing reliability evaluation of a power supply system described above may be referred to correspondingly.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an apparatus for implementing reliability evaluation of a power supply system according to an embodiment of the present disclosure.
As shown in fig. 5, the apparatus may include:
a commercial power direct supply judging unit 11, configured to judge whether a power supply mode of a base station power supply system is a commercial power direct supply mode, if yes, execute a first dual-condition judging unit, and if not, execute a three-condition judging unit;
a first dual-condition determining unit 12, configured to determine whether the base station power supply system simultaneously satisfies a first condition and a second condition, and if so, execute a second dual-condition determining unit, where the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, a voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that a monthly mean failure frequency of the base station power supply system is less than a preset failure frequency, and a duration of each failure of the base station power supply system is not less than a preset duration;
a second dual-condition determining unit 13, configured to calculate a far-end power supply limit of the base station power supply system, and determine whether the base station power supply system meets a third condition or a fourth condition, if yes, execute the first evaluating unit, where the third condition is that a far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit, and the fourth condition is that a primary DC-DC power supply is installed in the base station power supply system;
a first evaluation unit 14, configured to determine that the reliability of the base station power supply system is a first level;
the three-condition judging unit 15 is configured to judge whether the base station power supply system simultaneously satisfies a fifth condition, a sixth condition, and a seventh condition, and if yes, execute a second evaluating unit, where the fifth condition is that the base station power supply system is equipped with a transformer only adapted to a base station, the sixth condition is that the base station power supply system is equipped with an uninterruptible power supply, the seventh condition is that a remaining capacity of a storage battery of the base station power supply system after a preset operation duration is greater than a limit threshold, where the limit threshold is:
Figure BDA0003780001130000141
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
a second evaluation unit 16 for determining that the reliability of the base station power supply system is of a first level.
The device for reliability evaluation of the power supply system provided by the embodiment of the application can be applied to equipment for reliability evaluation of the power supply system, such as a terminal: mobile phones, computers, etc. Alternatively, fig. 6 is a block diagram illustrating a hardware structure of the device for reliability evaluation of the power supply system, and referring to fig. 6, the hardware structure of the device for reliability evaluation of the power supply system may include: at least one processor 1, at least one communication interface 2, at least one memory 3 and at least one communication bus 4;
in the embodiment of the application, the number of the processor 1, the communication interface 2, the memory 3 and the communication bus 4 is at least one, and the processor 1, the communication interface 2 and the memory 3 complete mutual communication through the communication bus 4;
the processor 1 may be a central processing unit CPU, or an Application Specific Integrated Circuit ASIC (Application Specific Integrated Circuit), or one or more Integrated circuits configured to implement embodiments of the present invention, etc.;
the memory 3 may include a high-speed RAM memory, and may further include a non-volatile memory (non-volatile memory) or the like, such as at least one disk memory;
wherein the memory stores a program and the processor can call the program stored in the memory, the program for:
judging whether the power supply mode of a base station power supply system is a direct mains supply mode or not;
if the power supply mode of the base station power supply system is not a direct mains supply mode, judging whether the base station power supply system simultaneously meets a first condition and a second condition, wherein the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, the voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that the monthly mean failure frequency of the base station power supply system is smaller than a preset failure frequency, and the duration of each failure of the base station power supply system is not smaller than a preset duration;
if the base station power supply system meets the first condition and the second condition at the same time, calculating a far-end power supply limit value of the base station power supply system, and judging whether the base station power supply system meets a third condition or a fourth condition, wherein the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value, and the fourth condition is that a primary DC-DC power supply is installed on the base station power supply system;
if the base station power supply system meets the third condition or the fourth condition, determining that the reliability of the base station power supply system is a first level;
if the power supply mode of the base station power supply system is a direct mains supply mode, judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, wherein the fifth condition is that the base station power supply system is provided with a transformer only adapted to a base station, the sixth condition is that the base station power supply system is provided with an uninterruptible power supply, the seventh condition is that the residual capacity of a storage battery of the base station power supply system after a preset operation time is greater than a limit threshold, and the limit threshold is that:
Figure BDA0003780001130000151
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
and if the base station power supply system simultaneously meets the fifth condition, the sixth condition and the seventh condition, determining that the reliability of the base station power supply system is in a first level.
Alternatively, the detailed function and the extended function of the program may be as described above.
An embodiment of the present application further provides a storage medium, where the storage medium may store a program adapted to be executed by a processor, where the program is configured to:
judging whether the power supply mode of the base station power supply system is a direct mains supply mode or not;
if the power supply mode of the base station power supply system is not a direct mains supply mode, judging whether the base station power supply system simultaneously meets a first condition and a second condition, wherein the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, the voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that the monthly mean fault frequency of the base station power supply system is less than a preset fault frequency, and the duration time of each fault of the base station power supply system is not less than a preset duration;
if the base station power supply system meets the first condition and the second condition at the same time, calculating a far-end power supply limit value of the base station power supply system, and judging whether the base station power supply system meets a third condition or a fourth condition, wherein the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value, and the fourth condition is that a primary DC-DC power supply is installed on the base station power supply system;
if the base station power supply system meets the third condition or the fourth condition, determining that the reliability of the base station power supply system is in a first level;
if the power supply mode of the base station power supply system is a direct mains supply mode, judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, wherein the fifth condition is that the base station power supply system is provided with a transformer only adapted to a base station, the sixth condition is that the base station power supply system is provided with an uninterruptible power supply, the seventh condition is that the residual capacity of a storage battery of the base station power supply system after a preset operation time is greater than a limit threshold, and the limit threshold is that:
Figure BDA0003780001130000161
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
and if the base station power supply system simultaneously meets the fifth condition, the sixth condition and the seventh condition, determining that the reliability of the base station power supply system is in a first level.
Alternatively, the detailed function and the extended function of the program may be as described above.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, the embodiments may be combined as needed, and the same and similar parts may be referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A reliability evaluation method of a base station power supply system is characterized by comprising the following steps:
judging whether the power supply mode of the base station power supply system is a direct mains supply mode or not;
if the power supply mode of the base station power supply system is not a direct mains supply mode, judging whether the base station power supply system simultaneously meets a first condition and a second condition, wherein the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, the voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that the monthly mean failure frequency of the base station power supply system is smaller than a preset failure frequency, and the duration of each failure of the base station power supply system is not smaller than a preset duration;
if the base station power supply system meets the first condition and the second condition at the same time, calculating a far-end power supply limit value of the base station power supply system, and judging whether the base station power supply system meets a third condition or a fourth condition, wherein the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value, and the fourth condition is that a primary DC-DC power supply is installed on the base station power supply system;
if the base station power supply system meets the third condition or the fourth condition, determining that the reliability of the base station power supply system is a first level;
if the power supply mode of the base station power supply system is a direct mains supply mode, judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, wherein the fifth condition is that the base station power supply system is provided with a transformer only adapted to a base station, the sixth condition is that the base station power supply system is provided with an uninterruptible power supply, the seventh condition is that the residual capacity of a storage battery of the base station power supply system after preset operation time is greater than a threshold value, and the threshold value is as follows:
Figure FDA0003780001120000011
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
and if the base station power supply system simultaneously meets the fifth condition, the sixth condition and the seventh condition, determining that the reliability of the base station power supply system is in a first level.
2. The method of claim 1, further comprising:
and if the base station power supply system does not meet the first condition and the second condition simultaneously, determining the reliability of the base station power supply system to be in a second level.
3. The method of claim 1, further comprising:
and if the base station power supply system does not meet the third condition and the fourth condition at the same time, determining that the reliability of the base station power supply system is in a second level.
4. The method of claim 1, further comprising:
and if the base station power supply system does not meet the fifth condition, the sixth condition and the seventh condition at the same time, determining that the reliability of the base station power supply system is in a second level.
5. The method of claim 1, wherein calculating the remote power limit for the base station power system comprises:
and determining the far-end power supply limit value of the base station power supply system according to the power supply conversion efficiency of the far-end power supply line of the base station power supply system, the power supply voltage of the base station power supply system, the far-end input voltage of the base station power supply system, the total load power of the far-end equipment of the base station power supply system and the resistivity of the far-end power supply transmission wire of the base station power supply system.
6. The method of claim 1, wherein determining the remote power supply limit of the base station power supply system according to the power conversion efficiency of the remote power supply line of the base station power supply system, the power supply voltage of the base station power supply system, the remote input voltage of the base station power supply system, the total load power of the remote equipment of the base station power supply system, and the resistivity of the remote power supply transmission line of the base station power supply system comprises:
calculating a remote power supply limit value of the base station power supply system using the following equation:
Figure FDA0003780001120000021
wherein L is the far-end power supply limit value of the base station power supply system, S is the power supply conversion efficiency of the far-end power supply line of the base station power supply system, and U is the power supply conversion efficiency of the far-end power supply line of the base station power supply system S Supply voltage, U, for the base station power supply system 0 A remote input voltage, P, for the power supply system of the base station 0 Total load power of remote equipment of the base station power supply systemAnd rho is the resistivity of the far-end power supply transmission wire of the base station power supply system.
7. A reliability evaluation device for a base station power supply system, comprising:
the system comprises a commercial power direct supply judging unit, a first dual-condition judging unit and a third dual-condition judging unit, wherein the commercial power direct supply judging unit is used for judging whether the power supply mode of a base station power supply system is a commercial power direct supply mode, if so, the first dual-condition judging unit is executed, and if not, the third dual-condition judging unit is executed;
the first dual-condition judgment unit is used for judging whether the base station power supply system meets a first condition and a second condition at the same time, if so, the second dual-condition judgment unit is executed, the first condition is that an external power supply line of the base station power supply system is two independent external power supply lines, the voltage of the external power supply line of the base station power supply system is a preset external power supply voltage, the second condition is that the monthly mean fault frequency of the base station power supply system is less than a preset fault frequency, and the duration of each fault of the base station power supply system is not less than a preset duration;
the second dual-condition judgment unit is used for calculating a far-end power supply limit value of the base station power supply system and judging whether the base station power supply system meets a third condition or a fourth condition, if so, the first evaluation unit is executed, the third condition is that the far-end power supply distance of the base station power supply system is smaller than the far-end power supply limit value, and the fourth condition is that a primary DC-DC power supply is installed on the base station power supply system;
the first evaluation unit is used for determining the reliability of the base station power supply system to be a first grade;
the base station power supply system comprises three condition judgment units and a second evaluation unit, wherein the three condition judgment units are used for judging whether the base station power supply system simultaneously meets a fifth condition, a sixth condition and a seventh condition, if yes, the second evaluation unit is executed, the fifth condition is that the base station power supply system is provided with a transformer only adapted to a base station, the sixth condition is that the base station power supply system is provided with an uninterruptible power supply, the seventh condition is that the residual capacity of a storage battery of the base station power supply system after a preset operation time is greater than a limit threshold, and the limit threshold is as follows:
Figure FDA0003780001120000031
wherein Q is the limit threshold, K is a preset safety coefficient, I is the load discharge current of the storage battery, T is the discharge hours of the storage battery, eta is the discharge capacity coefficient of the storage battery, and T is the ambient temperature value of the storage battery;
and the second evaluation unit is used for determining the reliability of the base station power supply system to be a first level.
8. The apparatus of claim 7, further comprising:
and the third evaluation unit is used for determining the reliability of the base station power supply system to be a second level if the judgment result of the first dual-condition judgment unit is negative.
9. The apparatus of claim 7, further comprising:
and the fourth evaluation unit is used for determining that the reliability of the base station power supply system is in a second level if the judgment result of the second dual-condition judgment unit is negative.
10. The apparatus of claim 7, further comprising:
and the fifth evaluation unit is used for determining the reliability of the base station power supply system to be a second level if the judgment result of the three-condition judgment unit is negative.
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