CN111325477A - Traction power supply system maintenance scheme determination method for reducing maintenance power failure time - Google Patents
Traction power supply system maintenance scheme determination method for reducing maintenance power failure time Download PDFInfo
- Publication number
- CN111325477A CN111325477A CN202010145539.1A CN202010145539A CN111325477A CN 111325477 A CN111325477 A CN 111325477A CN 202010145539 A CN202010145539 A CN 202010145539A CN 111325477 A CN111325477 A CN 111325477A
- Authority
- CN
- China
- Prior art keywords
- maintenance
- time
- power supply
- equipment
- tre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 124
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005315 distribution function Methods 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
Classifications
-
- 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
- G06Q10/0637—Strategic management or analysis, e.g. setting a goal or target of an organisation; Planning actions based on goals; Analysis or evaluation of effectiveness of goals
-
- 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
- G06Q10/20—Administration of product repair or maintenance
-
- 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—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/40—Business processes related to the transportation industry
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- General Physics & Mathematics (AREA)
- Tourism & Hospitality (AREA)
- Theoretical Computer Science (AREA)
- General Business, Economics & Management (AREA)
- Marketing (AREA)
- Physics & Mathematics (AREA)
- Entrepreneurship & Innovation (AREA)
- Quality & Reliability (AREA)
- Operations Research (AREA)
- Educational Administration (AREA)
- Development Economics (AREA)
- Game Theory and Decision Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a method for determining a maintenance scheme of a traction power supply system, which can reduce the maintenance power failure time. The method comprises the following steps: a: input data required for maintenance protocol determination is acquired. B: and determining the value of the reliability maintenance margin delta R of the traction power supply equipment. C: and solving the maintenance period, the equipment required to be maintained and the maintenance outage time. D: changing the value of the reliability maintenance margin delta R of the traction power supply equipment, circulating the step C, and selecting the power failure time TfThe reliability maintenance margin corresponding to the minimum value of (1), the maintenance period and the equipment required to be maintained in each maintenance period are taken as the final output maintenance scheme. The invention can reduce the maintenance power-off time of the traction power supply system and provides a better basis for railway operation and maintenance units to formulate the maintenance scheme of the traction power supply system.
Description
Technical Field
The invention relates to a method for determining a maintenance scheme of a traction power supply system, in particular to a method for determining a maintenance scheme of a traction power supply system, which reduces the maintenance power failure time.
Background
The railway traction power supply system in China adopts a maintenance mode combining regular scheduled maintenance, fault first-aid repair and daily inspection. The maintenance mode mainly based on the regular scheduled maintenance can ensure the reliability requirement of the traction power supply equipment to a certain extent, but has the problems of frequent maintenance, high cost and low efficiency. Because the maintenance of the traction power supply equipment depends on manual operation, the whole network or the area is required to be matched with power failure. Therefore, frequent maintenance increases the power failure time of the traction power supply system, which may not only affect the operation planning of the existing train, but also may result in that all-weather line driving cannot be realized, and the transportation capacity of the railway line is reduced.
In the currently implemented maintenance mode of the traction power supply system, maintenance of traction power supply equipment is often performed independently, and common maintenance does not exist for each equipment. Therefore, when a certain device is maintained, the traction power supply system needs to be powered off, so that the power failure of the traction power supply system is frequent, and the normal operation of the system is influenced.
Disclosure of Invention
The invention provides a method for determining a maintenance scheme of a traction power supply system, which aims to fully utilize the power failure time of the traction power supply system, realize the common maintenance among equipment, reduce the maintenance power failure time of the traction power supply system and provide decision support for determining the maintenance scheme of the traction power supply system.
The technical scheme adopted by the invention is as follows: a method for determining a maintenance scheme of a traction power supply system for reducing maintenance outage time comprises the following steps:
A. data acquisition
A1, counting n traction power supply devices S1,S2,…,SnTime of failure of the kth device SkTime of operation TkKth device SkSpecified service life TCkKth device SkThe running time T from the last maintenance end time to the current time0kKth device SkMaintenance time TW required for 1 maintenancekKth device SkRequired for operational reliability Rk(ii) a Wherein k is 1,2, …, n;
a2, using the Weibull distribution function as shown in formula (1) to describe the reliability of each device,
r in the formula (1)k(t) is a unit SkReliability after runtime t, ηk、mkScale and shape parameters of Weibull distribution function, ηk、mkAll according to statistical equipment SkThe historical fault time is calculated by adopting a least square method; exp represents an exponential function with a natural constant as the base;
a3, device SkRequired for operational reliability RkSubstituting the left side of the formula (1) to calculate the device SkMaintenance interval ofThen computing device SkRemaining service time TRE from next maintenancek=TPk-T0k。
B. Defining reliability maintenance margin Delta R of traction power supply equipment to be 0.005
C. Maintenance period, required maintenance equipment and solution of maintenance blackout time
C1, computing device SkMaintenance interval ofDefinition device SkMinimum maintenance period TO ofk=TPk-ΔTk(ii) a Defining system power failure time Tf=0;
C2, comparing the residual using time of n devices, and marking the device with the shortest residual using time as the a < th > device0An apparatus Sa0(ii) a Judging whether or not the product is a0Whether or not other devices than the individual device satisfy TOk<TPa0Where k is 1,2, …, n, but k ≠ a0(ii) a If not (k ═ a)0) This maintenance is only performedTo the a0The equipment is maintained with a maintenance period of TREa0A1 th0Maintenance time TW of individual devicesa0System power off time T marked as this maintenancefA first step of; at the same time, the first step0The running time of each device is updated to Ta0=Ta0+TREa0And will be a0The remaining usage time of each device is updated to TREa0=TPa0(ii) a Then entering the C4 operation; if (k ≠ a) is 1,2, …, n0) Then go to step C3;
c3, Definitions all satisfy TOk<TPa0Is { S }a1,Sa2…, the repair pair a0An apparatus Sa0And device { Sa1,Sa2… } are simultaneously repaired with a repair cycle TREa0(ii) a Comparison device Sa0And device { Sa1,Sa2… maintenance time TW required for 1 maintenancea0、TWa1、TWa2…, defining a maximum value TW thereinmSystem power off time T as this maintenancefA first step of; at the same time, the device Sa0And device { Sa1,Sa2… } are updated to Tj=Tj+TREa0And the device Sa0And device { Sa1,Sa2… } is updated to TREj=TPjWherein j is a0,a1,a2,…;
C4, updating system power failure time Tf=Tf+Tf*;
C5, judging the operation time T of the kth equipmentkWhether the specified service life TC is reachedk. If not, returning to the step C2; if yes, ending the circulation;
c6, recording and saving T solved this timefAnd solving all maintenance periods in the cyclic process and the equipment required to be maintained in each maintenance period.
D. Updating delta R to delta R +0.001, and judging whether the delta R is less than or equal to 0.1; if yes, returning to the step C for processing; if not, the user can not select the specific application,then do not return to step C and select all stored TfThe reliability maintenance margin corresponding to the minimum value of (1), the maintenance period and the equipment required to be maintained in each maintenance period are taken as the final output maintenance scheme.
Compared with the prior art, the invention has the beneficial effects that:
the invention fully utilizes the power failure time of the traction power supply system, realizes the common maintenance among equipment compared with the traditional regular maintenance mode, can reduce the maintenance power failure time of the traction power supply system, and provides better basis for railway operation and maintenance units to formulate the maintenance scheme of the traction power supply system.
Detailed Description
The embodiments of the present invention are described below with specific examples, and those skilled in the art can easily understand the advantages of the present invention from the disclosure of the present specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention.
The present invention is further described below with reference to specific embodiments. A method for determining a maintenance scheme of a traction power supply system for reducing maintenance power failure time comprises the following specific steps:
A. data acquisition
A1, counting n traction power supply devices S1,S2,…,SnTime of failure of the kth device SkTime of operation TkKth device SkSpecified service life TCkKth device SkThe running time T from the last maintenance end time to the current time0kKth device SkMaintenance time TW required for 1 maintenancekKth device SkRequired for operational reliability Rk(ii) a Wherein k is 1,2, …, n;
a2, using the Weibull distribution function as shown in formula (2) to describe the reliability of each device,
r in the formula (1)k(t) is a unit SkReliability after runtime t, ηk、mkScale and shape parameters of Weibull distribution function, ηk、mkAll according to statistical equipment SkThe historical fault time is calculated by adopting a least square method; exp represents an exponential function with a natural constant as the base;
a3, device SkRequired for operational reliability RkSubstituting the left side of the formula (1) to calculate the device SkMaintenance interval ofThen computing device SkRemaining service time TRE from next maintenancek=TPk-T0k。
B. Defining reliability maintenance margin Delta R of traction power supply equipment to be 0.005
C. Maintenance period, required maintenance equipment and solution of maintenance blackout time
C1, computing device SkMaintenance interval ofDefinition device SkMinimum maintenance period TO ofk=TPk-ΔTk(ii) a Defining system power failure time Tf=0;
C2, comparing the residual using time of n devices, and marking the device with the shortest residual using time as the a < th > device0An apparatus Sa0(ii) a Judging whether or not the product is a0Whether or not other devices than the individual device satisfy TOk<TPa0Where k is 1,2, …, n, but k ≠ a0(ii) a If not (k ═ a)0) The maintenance is only to the a-th0The equipment is maintained with a maintenance period of TREa0A1 th0Maintenance time TW of individual devicesa0System power off time T marked as this maintenancefA first step of; at the same time, the first step0Time of operation of the apparatusIs updated to Ta0=Ta0+TREa0And will be a0The remaining usage time of each device is updated to TREa0=TPa0(ii) a Then entering the C4 operation; if (k ≠ a) is 1,2, …, n0) Then go to step C3;
c3, Definitions all satisfy TOk<TPa0Is { S }a1,Sa2…, the repair pair a0An apparatus Sa0And device { Sa1,Sa2… } are simultaneously repaired with a repair cycle TREa0(ii) a Comparison device Sa0And device { Sa1,Sa2… maintenance time TW required for 1 maintenancea0、TWa1、TWa2…, defining a maximum value TW thereinmSystem power off time T as this maintenancefA first step of; at the same time, the device Sa0And device { Sa1,Sa2… } are updated to Tj=Tj+TREa0And the device Sa0And device { Sa1,Sa2… } is updated to TREj=TPjWherein j is a0,a1,a2,…;
C4, updating system power failure time Tf=Tf+Tf*;
C5, judging the operation time T of the kth equipmentkWhether the specified service life TC is reachedk. If not, returning to the step C2; if yes, ending the circulation;
c6, recording and saving T solved this timefAnd solving all maintenance periods in the cyclic process and the equipment required to be maintained in each maintenance period.
D. Updating delta R to delta R +0.001, and judging whether the delta R is less than or equal to 0.1; if yes, returning to the step C for processing; if not, not returning to the step C, and selecting all the stored TfThe reliability maintenance margin corresponding to the minimum value of (1), the maintenance period and the equipment required to be maintained in each maintenance period are taken as the final output maintenance scheme.
In conclusion, the method for determining the maintenance scheme of the traction power supply system for reducing the maintenance power failure time can realize the common maintenance of the equipment under the condition of ensuring the reliability requirement of the traction power supply equipment, can reduce the maintenance power failure time of the traction power supply system, and provides a better basis for railway operation and maintenance units to formulate the maintenance scheme of the traction power supply system.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Therefore, the scope of the invention should be determined from the following claims.
Claims (1)
1. A method for determining a maintenance scheme of a traction power supply system for reducing maintenance outage time is characterized by comprising the following steps:
A. data acquisition
A1, counting n traction power supply devices S1,S2,…,SnTime of failure of the kth device SkTime of operation TkKth device SkSpecified service life TCkKth device SkThe running time T from the last maintenance end time to the current time0kKth device SkMaintenance time TW required for 1 maintenancekKth device SkRequired for operational reliability Rk(ii) a Wherein k is 1,2, …, n;
a2, using the Weibull distribution function as shown in formula (1) to describe the reliability of each device,
r in the formula (1)k(t) is a unit SkReliability after runtime t, ηk、mkScale and shape parameters of Weibull distribution function, ηk、mkAll according to statistical equipment SkThe historical fault time is calculated by adopting a least square method; exp represents an exponential function with a natural constant as the base;
a3, device SkRequired for operational reliability RkSubstituting the left side of the formula (1) to calculate the device SkMaintenance interval ofThen computing device SkRemaining service time TRE from next maintenancek=TPk-T0k;
B. Defining reliability maintenance margin Delta R of traction power supply equipment to be 0.005
C. Maintenance period, required maintenance equipment and solution of maintenance blackout time
C1, computing device SkMaintenance interval ofDefinition device SkMinimum maintenance period TO ofk=TPk-ΔTk(ii) a Defining system power failure time Tf=0;
C2, comparing the residual using time of n devices, and marking the device with the shortest residual using time as the a < th > device0An apparatus Sa0(ii) a Judging whether or not the product is a0Whether or not other devices than the individual device satisfy TOk<TPa0Where k is 1,2, …, n, but k ≠ a0(ii) a If not (k ═ a)0) The maintenance is only to the a-th0The equipment is maintained with a maintenance period of TREa0A1 th0Maintenance time TW of individual devicesa0System power off time T marked as this maintenancefA first step of; at the same time, the first step0The running time of each device is updated to Ta0=Ta0+TREa0And will be a0The remaining usage time of each device is updated to TREa0=TPa0(ii) a Then entering the C4 operation; if (k ≠ a) is 1,2, …, n0) Then go to step C3;
c3, Definitions all satisfy TOk<TPa0Is { S }a1,Sa2…, the repair pair a0An apparatus Sa0And device { Sa1,Sa2… } are simultaneously repaired with a repair cycle TREa0(ii) a Comparison device Sa0And device { Sa1,Sa2… maintenance time TW required for 1 maintenancea0、TWa1、TWa2…, defining a maximum value TW thereinmSystem power off time T as this maintenancefA first step of; at the same time, the device Sa0And device { Sa1,Sa2… } are updated to Tj=Tj+TREa0And the device Sa0And device { Sa1,Sa2… } is updated to TREj=TPjWherein j is a0,a1,a2,…;
C4, updating system power failure time Tf=Tf+Tf*;
C5, judging the operation time T of the kth equipmentkWhether the specified service life TC is reachedkIf not, returning to the step C2; if yes, ending the circulation;
c6, recording and saving T solved this timefSolving all maintenance periods in the cyclic process and equipment required to be maintained in each maintenance period;
D. updating delta R to delta R +0.001, and judging whether the delta R is less than or equal to 0.1; if yes, returning to the step C for processing; if not, not returning to the step C, and selecting all the stored TfThe reliability maintenance margin corresponding to the minimum value of (1), the maintenance period and the equipment required to be maintained in each maintenance period are taken as the final output maintenance scheme.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010145539.1A CN111325477B (en) | 2020-03-05 | 2020-03-05 | Traction power supply system maintenance scheme determination method for reducing maintenance power failure time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010145539.1A CN111325477B (en) | 2020-03-05 | 2020-03-05 | Traction power supply system maintenance scheme determination method for reducing maintenance power failure time |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111325477A true CN111325477A (en) | 2020-06-23 |
CN111325477B CN111325477B (en) | 2022-04-29 |
Family
ID=71163884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010145539.1A Active CN111325477B (en) | 2020-03-05 | 2020-03-05 | Traction power supply system maintenance scheme determination method for reducing maintenance power failure time |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111325477B (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104809661A (en) * | 2015-05-06 | 2015-07-29 | 国家电网公司 | Power distribution network reliability evaluation method considering opportunity maintenance strategy |
CN106021917A (en) * | 2016-05-18 | 2016-10-12 | 万宇通 | Method for calculating and predicting structure reliability of support connection parts of power supply system of high-speed rail |
CN107403226A (en) * | 2017-07-17 | 2017-11-28 | 南京中车浦镇城轨车辆有限责任公司 | It is a kind of to determine traction for transformer preventative maintenance interval and the method for number based on residual life reliability |
CN110533325A (en) * | 2019-08-29 | 2019-12-03 | 云南电网有限责任公司电力科学研究院 | The decision-making technique and system of relay protection device repair time |
-
2020
- 2020-03-05 CN CN202010145539.1A patent/CN111325477B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104809661A (en) * | 2015-05-06 | 2015-07-29 | 国家电网公司 | Power distribution network reliability evaluation method considering opportunity maintenance strategy |
CN106021917A (en) * | 2016-05-18 | 2016-10-12 | 万宇通 | Method for calculating and predicting structure reliability of support connection parts of power supply system of high-speed rail |
CN107403226A (en) * | 2017-07-17 | 2017-11-28 | 南京中车浦镇城轨车辆有限责任公司 | It is a kind of to determine traction for transformer preventative maintenance interval and the method for number based on residual life reliability |
CN110533325A (en) * | 2019-08-29 | 2019-12-03 | 云南电网有限责任公司电力科学研究院 | The decision-making technique and system of relay protection device repair time |
Non-Patent Citations (3)
Title |
---|
DING FENG等: "Reliability assessment for traction power supply system based on Quantification of Margins and Uncertainties", 《MICROELECTRANICS RELIABILITY》 * |
张奥等: "基于马尔可夫过程的牵引供电设备维修决策模型及其应用", 《铁道学报》 * |
王玘: "基于网络分析法的高铁牵引供电系统维修方式决策", 《铁道学报》 * |
Also Published As
Publication number | Publication date |
---|---|
CN111325477B (en) | 2022-04-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111162608B (en) | Distribution transformer area topology identification and verification method based on correlation analysis | |
US8981654B2 (en) | LED centralized DC power supply system and operating methods thereof | |
CN107689459B (en) | A kind of efficiency optimization control method of tramcar fuel cell array system | |
CN104006488B (en) | Air-conditioner control system and the method controlling operation of air conditioner thereof | |
CN108847667B (en) | Power transmission network extension planning method considering power grid structure optimization | |
WO2005081771A3 (en) | System and method for managing fault in a power system | |
CN102646978B (en) | Simple DC (direct current) power supply current equalization and parallel connection system of and control method of the system | |
CN202121292U (en) | Power failure protective circuit and power supply circuit | |
CN111325477B (en) | Traction power supply system maintenance scheme determination method for reducing maintenance power failure time | |
CN109687432B (en) | Multi-stage cooperation-based power distribution terminal site selection and sizing method and system | |
CN116880231B (en) | Multi-terminal interaction method and device based on intelligent home | |
CN112928780B (en) | Power distribution network post-disaster power supply recovery method and system | |
CN112418700A (en) | Power capacity market demand curve design method, device and equipment | |
CN110633842B (en) | 220kV bus load prediction result adjustment method, system, medium and equipment | |
CN202616774U (en) | Simple DC power supply current-sharing parallel system | |
CN110649652A (en) | New energy sending-out system phase modulator configuration method and device based on risk quantitative evaluation | |
CN102541248A (en) | Method for dynamically adjusting power supply efficiency in cloud computing industry by means of centralization | |
JP2011022022A (en) | Apparatus and method for monitoring input power | |
CN104133541A (en) | Method for prolonging service life of server power supply | |
CN111953067B (en) | Energy information hub of intelligent power distribution room +5G base station based on low-voltage direct current and reliability and energy efficiency evaluation method thereof | |
CN109995094B (en) | Planning method and system for AC/DC hybrid micro-grid | |
CN203205964U (en) | Green energy data center system | |
CN114154661A (en) | Distribution network first-aid repair operation priority evaluation method, system, equipment and medium | |
CN113793003A (en) | Toughness improvement-oriented electric power system maintenance and operation cooperative decision method | |
CN108090636B (en) | Line loss rate trend prediction method based on partial pressure line loss model |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |