CN109061361B - ZPW-2000 compensating electric capacity open-circuit fault method for early warning - Google Patents
ZPW-2000 compensating electric capacity open-circuit fault method for early warning Download PDFInfo
- Publication number
- CN109061361B CN109061361B CN201810790377.XA CN201810790377A CN109061361B CN 109061361 B CN109061361 B CN 109061361B CN 201810790377 A CN201810790377 A CN 201810790377A CN 109061361 B CN109061361 B CN 109061361B
- Authority
- CN
- China
- Prior art keywords
- rail
- electric capacity
- voltage
- compensating electric
- circuit fault
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/64—Testing of capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Locating Faults (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses ZPW-2000 compensating electric capacity open-circuit fault method for early warning, method includes the following steps: step S1: acquisition rail goes out voltage data；Step S2: voltage data is gone out to the rail of acquisition and is pre-processed；Step S3: if going out voltage to rail carries out envelope extraction, S4 is entered step；S5 is entered step if going out voltage to rail and carrying out phase offset processing；Step S5: judge that rail goes out whether voltage phase offset occurs, if then location of fault has occurred in positioning compensation capacitor, enters step S6；If not, then it represents that it is normal, terminate program；Solves the problem of compensating electric capacity open-circuit fault testing cost is high, detection cycle is long, detection timeliness is low, cannot find compensation capacitance fault in time.
Description
Technical field
The present invention relates to compensating electric capacity open-circuit fault early warning field, especially ZPW-2000 compensating electric capacity open-circuit fault early warning
Method.
Background technique
In the prior art, for ZPW-2000 compensating electric capacity open-circuit fault, main diagnostic method is divided into two kinds:
1. periodic sensing approach: periodic detection is completed by electricity business detection vehicle, and electricity business detects vehicle when running on tested track,
Corresponding mobile unit constantly sends and receives test signal to track, and electric business personnel send and receive signal difference by observing and measuring
It is different, to examine whether compensating electric capacity breaks down.The fault detection method need to be completed by the Special electric business detection vehicle periodically started,
Testing cost is high, detection cycle is long, detection timeliness is low, cannot find compensation capacitance fault in time.
2. existing Research on Intelligent Diagnosis: when train orbits, incuding rail level shift frequency in real time by car antenna TCR
Information, and send shift information to ground client by mobile unit and analyze.Ground client combination artificial experience and
Fault diagnosis algorithm is analyzed and processed shift information, realizes diagnosis and positioning to compensation capacitance fault.However, the party
In the case that method there must be train operation in orbit, identification could be carried out to ZPW-2000 track circuit compensation capacitance failure and is examined
It is disconnected, when there is no train operation on track, then compensation capacitance fault cannot be detected, therefore the detection actual effect of such methods is not
Foot, also cannot achieve fault pre-alarming.
Summary of the invention
To solve problems of the prior art, the present invention provides the pre- police of ZPW-2000 compensating electric capacity open-circuit fault
Method solves the problem of testing cost is high, detection cycle is long, detection timeliness is low, cannot find compensation capacitance fault in time.
The technical solution adopted by the present invention is that ZPW-2000 compensating electric capacity open-circuit fault method for early warning, method includes as follows
Step:
Step S1: acquisition rail goes out voltage data；
Step S2: voltage data is gone out to the rail of acquisition and is pre-processed；
Step S3: if going out voltage to rail carries out envelope extraction, S4 is entered step；If going out voltage to rail carries out phase
Migration processing then enters step S5；
Step S4: judging that the rail extracted goes out whether voltage envelope signal transient process occurs, if so, compensating electric capacity is sent out
It has given birth to open-circuit fault and has entered step S6, if otherwise indicating normal, terminated program；
Step S5: judge that rail goes out whether voltage phase offset occurs, if then the position of failure has occurred in positioning compensation capacitor
It sets, enters step S6；If not, then it represents that it is normal, terminate program；
Step S6: issuing fault pre-alarming information, terminates program.
Preferably, the pretreatment of step S2 includes filtering out harmonic wave, noise reduction and normalization.
Preferably, it is when area segments rail goes out voltage envelope that the rail of step S4, which goes out voltage envelope signal transient process whether occur,
Appearance falls before and rises transient process again, and rail goes out that voltage stable state peak value is low compared with before transient process, then determining should after transient process
Compensating electric capacity open-circuit fault occurs for area segments, provides alert information to monitoring system.
Preferably, step S3 goes out the specific steps that voltage carries out phase offset processing to rail are as follows:
Step S31: voltage U is gone out to the rail of ground centralized monitoring systemre(t) Hilbert transformation is carried out, voltage U is obtainedre
(t)；
Step S32: by Ure(t) arrange is plural form
Ure(t)=Im (Ure(t))+i.Re(Ure(t))
In formula, Im (Ure(t)) U is indicatedre(t) real part, Re (UreIt (t)) is Ure(t) imaginary part；
Step S33: it finds out rail and goes out voltage Ure(t) instantaneous phase θre(t) it can be expressed as
Step S34: it after compensating electric capacity open-circuit fault occurs, is transitioned into steady-state process in transient state, rail goes out voltage Ure(t)
Phase can occur a degree of offset, and different location compensating electric capacity is opened a way, and caused phase offset is different, according to compensation
The rail that capacitance open circuit failure causes goes out voltage-phase situation of change, formulates failure foundation.
Step S35: pass through real-time detection voltage Ure(t) the phase change A θ before and after transient processre(t), according to system
Fixed basis on location, realizes ZPW-2000 track circuit without under vehicle situation, to the positioning function of compensating electric capacity open-circuit fault, thus
Instruct maintenance of works.
ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention has the beneficial effect that:
1. realizing without the fault detection under the conditions of vehicle: traditional compensation capacitance fault detection needs dedicated track checking car or fortune
The vehicle-mounted monitoring information of ranks vehicle cannot detect compensation capacitance fault when track section is without vehicle.The present invention is having vehicle and without vehicle
Under the conditions of, the compensation capacitance fault detection and positioning of track section can be achieved, reach the real-time inspection of compensating electric capacity open-circuit fault
It surveys.
2. realizing the low cost detection of compensating electric capacity open-circuit fault: the present invention does not need increase track circuit monitoring acquisition and sets
It is standby, it makes full use of the track circuit rail of existing ground centralized monitoring system to go out voltage monitoring information, transient analysis is carried out to it
The diagnosis of compensating electric capacity open-circuit fault is realized after processing, not only convenient but also save the cost.
3. realizing the warning function of compensating electric capacity open-circuit fault: the present invention can be using 24 hours of centralized monitoring system in real time
Rail goes out voltage monitoring information, by transient analysis, also can be carried out opening for the section compensating electric capacity when no vehicle passes through track section
Road fault diagnosis, so that grasping compensating electric capacity working condition in advance before train arrives for operation and maintenance personnel provides analyzing and diagnosing
Information realizes the fault pre-alarming of compensating electric capacity.
Detailed description of the invention
Fig. 1 is the general flow chart of ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention.
Fig. 2 is the phase offset process flow diagram of ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention.
Fig. 3 is in the case of the track circuit of ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention does not break down
Rail goes out voltage transient waveform.
Fig. 4 is that the 5th compensating electric capacity C5 of ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention is sent out in 10ms
Raw open fault condition lower rail goes out voltage transient waveform.
Fig. 5 is that the compensating electric capacity C5 of ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention opens a way in 10ms
Caused rail goes out voltage-phase variation diagram.
Fig. 6 is compensating electric capacity C5, C8, C10 of ZPW-2000 compensating electric capacity open-circuit fault method for early warning of the present invention in 10ms
Rail caused by opening a way occurs and goes out voltage-phase variation diagram.
Specific embodiment
A specific embodiment of the invention is described below, in order to facilitate understanding by those skilled in the art this hair
It is bright, it should be apparent that the present invention is not limited to the ranges of specific embodiment, for those skilled in the art,
As long as various change is in the spirit and scope of the present invention that the attached claims limit and determine, these variations are aobvious and easy
See, all are using the innovation and creation of present inventive concept in the column of protection.
Based on the pre- police of ZPW-2000 compensating electric capacity open-circuit fault for going out voltage processing analysis to rail in centralized monitoring system
Method is as shown in Figure 1, this method comprises the following steps:
Step S1: voltage data is gone out to rail in centralized monitoring system and is acquired in real time；
Step S2: going out voltage data to the rail of acquisition and pre-process, including noise reduction, normalization；
Step S3: if going out voltage to rail carries out envelope extraction, S4 is entered step；If going out voltage to rail carries out phase
Migration processing then enters step S5；
Step S4: judging that the rail extracted goes out whether voltage envelope signal transient process occurs, if so, compensating electric capacity is sent out
It has given birth to open-circuit fault and has entered step S6, if otherwise indicating normal, terminated program；
Step S5: judge that rail goes out whether voltage phase offset occurs, if then the position of failure has occurred in positioning compensation capacitor
It sets, enters step S6；If not, then it represents that it is normal, terminate program；
Step S6: rail is gone out into voltage envelope and phase-shift information is sent to expert system, according to expert system knowledge base
Middle diagnosis basis provides compensating electric capacity open-circuit fault warning information, terminates program.
The pretreatment of the step S2 of this programme includes filtering out harmonic wave, noise reduction and normalization.
It is when area segments rail goes out voltage packet that the rail of the step S4 of this programme, which goes out voltage envelope signal transient process whether occur,
Falling before occurs in network rises transient process again, and to go out voltage stable state peak value low compared with before transient process for rail after transient process, then determines
Compensating electric capacity open-circuit fault occurs for the area segments, provides alert information to monitoring system.
As shown in Figures 2 to 5, the step S3 of this programme goes out the specific steps that voltage carries out phase offset processing to rail are as follows:
Step S31: voltage U is gone out to the rail of ground centralized monitoring systemre(t) Hilbert transformation is carried out, voltage U is obtainedre
(t)；
Step S32: by Ure(t) arrange is plural form
Ure(t)=Im (Ure(t))+i.Re(Ure(t))
In formula, Im (Ure(t)) U is indicatedre(t) real part, Re (UreIt (t)) is Ure(t) imaginary part；
Step S33: it finds out rail and goes out voltage Ure(t) instantaneous phase θre(t) it can be expressed as
Step S34: it after compensating electric capacity open-circuit fault occurs, is transitioned into steady-state process in transient state, rail goes out voltage Ure(t)
Phase can occur a degree of offset, and different location compensating electric capacity is opened a way, and caused phase offset is different, according to compensation
The rail that capacitance open circuit failure causes goes out voltage-phase situation of change, formulates failure foundation.
Step S35: by real-time detection voltage Ure(t) the phase change A θ before and after transient processre(t) input expert system
System realizes that ZPW-2000 track circuit without under vehicle situation, opens a way to compensating electric capacity former according to Diagnosis In Expert Systems foundation
The positioning function of barrier, to instruct maintenance of works.
When implementing, open-circuit fault occurs the present embodiment for ZPW-2000 compensating electric capacity, and its essence is track circuit parameters
Mutation, to cause the process that receiving end track signal amplitude is transitioned into stable state by transient state.If centralized monitoring system can be based on
Voltage signal is gone out to the rail of acquisition and carries out transient analysis, probes into the relationship of its transient characterisitics and compensation capacitance fault, realizes compensation
Capacitive faults ground detection is greatly improved the convenience and timeliness of diagnosis.
The present invention is using ZPW-2000 non-insulated track circuit as research object, by acquiring ground centralized monitoring system in real time
Middle rail goes out voltage data, after pretreatment, extracts and observes phase and envelope variation situation that rail goes out voltage, formulate compensating electric capacity
Open-circuit fault diagnosis basis, and according to diagnosis basis, it realizes to the transient state early warning of compensating electric capacity open-circuit fault and positioning function, tool
Body implementation steps are as follows:
It is pre-processed step 1: going out voltage signal to rail, acquisition centralized monitoring system rail goes out voltage signal, and carries out pre-
Processing, including signal is carried out to filter out harmonic wave, noise reduction, normalization.
Step 2: real-time monitoring rail goes out voltage transient situation of change, mentions as shown in figure 3, extracting rail goes out voltage peak envelope
Take simultaneously real-time monitoring Ure(t) peak envelope.Rise transient process again when certain section rail goes out voltage envelope and occurs falling before, and temporarily
It is low compared with before transient process to go out voltage stable state peak value for rail after state process, then determines that compensating electric capacity open-circuit fault may occur for the section,
It provides alert information to monitoring system.
Step 3: extract real-time rail goes out voltage phase information
Voltage U is gone out to the rail of ground centralized monitoring systemre(t) Hilbert transformation is carried out, voltage U is obtainedre(t)；
By Ure(t) arrange is plural form
Ure(t)=Im (Ure(t))+i.Re(Ure(t))
In formula, Im (Ure(t)) U is indicatedre(t) real part, Re (UreIt (t)) is Ure(t) imaginary part；
Step S33: it finds out rail and goes out voltage Ure(t) instantaneous phase θre(t) it can be expressed as
Step S34: it as shown in figure 4, after compensating electric capacity open-circuit fault occurs, is transitioned into steady-state process in transient state, rail
Voltage U outre(t) a degree of offset can occur for phase, and different location compensating electric capacity is opened a way, and caused phase offset is not
Together, voltage-phase situation of change is gone out according to the rail that compensating electric capacity open-circuit fault causes, formulates failure foundation.
Step S35: by real-time detection voltage Ure(t) the phase change A θ before and after transient processre(t) input expert system
System realizes ZPW-2000 track circuit without the diagnosis under vehicle situation, to compensating electric capacity open-circuit fault according to the diagnosis basis of formulation
And positioning function, to instruct maintenance of works.
It can be found that when open-circuit fault occurs for the 5th compensating electric capacity C5, rail, which goes out voltage envelope, to be gone out by comparison diagram 3 and Fig. 4
Now first rise the transient process declined afterwards.According to Fig. 5 it can be found that when compensating electric capacity open circuit event occurs for the 5th compensating electric capacity C5
It after barrier, is transitioned into steady-state process in transient state, rail goes out voltage Ure(t) a degree of offset can occur for phase.It can according to Fig. 6
With discovery, when open-circuit fault occurs for different location compensating electric capacity, the phase offset of initiation is different.
Go out voltage envelope variation and phase offset situation thus according to rail, can formulate the diagnosis of compensating electric capacity open-circuit fault according to
According to.Go out voltage U by real-time monitoring railre(t) transient process of envelope and phase change situation Δ θre(t), it can be achieved that ZPW-
2000 track circuits are without under vehicle situation, to the diagnosis of compensating electric capacity open-circuit fault and positioning function, to propose compensating electric capacity early warning
Information instructs maintenance of works.
Claims (4)
1.ZPW-2000 compensating electric capacity open-circuit fault method for early warning, the rail based on centralized monitoring system under no spoke part go out at voltage
Reason analysis, obtains ZPW-2000 compensating electric capacity open-circuit fault method for early warning, which is characterized in that method includes the following steps:
Step S1: acquisition rail goes out voltage data；
Step S2: voltage data is gone out to the rail of acquisition and is pre-processed；
Step S3: if going out voltage to rail carries out envelope extraction, S4 is entered step；If going out voltage to rail carries out phase offset
Processing then enters step S5；
Step S4: judge that the rail extracted goes out whether voltage envelope signal transient process occurs, if so, compensating electric capacity has occurred
Open-circuit fault enters step S6, if otherwise indicating normal, terminates program；
Step S5: judging that rail goes out whether voltage phase offset occurs, if then location of fault has occurred in positioning compensation capacitor, into
Enter step S6；If not, then it represents that it is normal, terminate program；
Step S6: rail is gone out into voltage envelope and phase-shift information is sent to expert system, is examined according in expert system knowledge base
Disconnected foundation, provides compensating electric capacity open-circuit fault warning information, terminates program.
2. ZPW-2000 compensating electric capacity open-circuit fault method for early warning according to claim 1, which is characterized in that the step
The pretreatment of S2 includes filtering out harmonic wave, noise reduction and normalization.
3. ZPW-2000 compensating electric capacity open-circuit fault method for early warning according to claim 1, which is characterized in that the step
The rail of S4 go out voltage envelope signal whether occur transient process be when area segments rail go out voltage envelope occur falling before rise again temporarily
State process, and to go out voltage stable state peak value low compared with before transient process for rail after transient process, then determines that compensating electric capacity occurs for the area segments
Open-circuit fault provides alert information to monitoring system.
4. ZPW-2000 compensating electric capacity open-circuit fault method for early warning according to claim 1, which is characterized in that the step
S3 goes out the specific steps that voltage carries out phase offset processing to rail are as follows:
Step S31: voltage U is gone out to the rail of ground centralized monitoring systemre(t) Hilbert transformation is carried out, voltage U is obtainedre(t)；
Step S32: by Ure(t) arrange is plural form
Ure(t)=Im (Ure(t))+i.Re(Ure(t))
In formula, Im (Ure(t)) U is indicatedre(t) real part, Re (UreIt (t)) is Ure(t) imaginary part；
Step S33: it finds out rail and goes out voltage Ure(t) instantaneous phase θre(t) it can be expressed as
Step S34: it after compensating electric capacity open-circuit fault occurs, is transitioned into steady-state process in transient state, rail goes out voltage Ure(t) phase
A degree of offset can occur for position, and different location compensating electric capacity is opened a way, and caused phase offset is different, according to compensating electric capacity
The rail that open-circuit fault causes goes out voltage-phase situation of change, formulates failure foundation, and input expert system；
Step S35: by real-time detection voltage Ure(t) the phase change A θ before and after transient processre(t) expert system, root are inputted
According to Diagnosis In Expert Systems foundation, ZPW-2000 track circuit is realized without under vehicle situation, to compensating electric capacity open-circuit fault
Diagnosis and positioning function propose fault pre-alarming information and maintenance of works suggestion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790377.XA CN109061361B (en) | 2018-07-18 | 2018-07-18 | ZPW-2000 compensating electric capacity open-circuit fault method for early warning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790377.XA CN109061361B (en) | 2018-07-18 | 2018-07-18 | ZPW-2000 compensating electric capacity open-circuit fault method for early warning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109061361A CN109061361A (en) | 2018-12-21 |
| CN109061361B true CN109061361B (en) | 2019-12-03 |
Family
ID=64817294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790377.XA Active CN109061361B (en) | 2018-07-18 | 2018-07-18 | ZPW-2000 compensating electric capacity open-circuit fault method for early warning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109061361B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618348B (en) * | 2019-07-02 | 2021-03-23 | 西南交通大学 | Parameter estimation and fault diagnosis method for detecting compensation capacitor of non-insulated track circuit |
| CN110794239A (en) * | 2019-11-08 | 2020-02-14 | 山东交通学院 | Non-insulated track compensation capacitor fault rapid detection device and method |
| CN116449258B (en) * | 2023-04-24 | 2024-02-23 | 中铁武汉电气化局集团上海工程建设有限公司 | Compensation capacitance detection system applied to track circuit detection trolley |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2938229B1 (en) * | 2008-11-12 | 2010-12-24 | Alstom Transport Sa | ANOMALY DETECTION DEVICE FOR A SUPERVISION INSTALLATION OF A RAIL VEHICLE, ASSOCIATED INSTALLATION AND METHOD |
| CN101508308B (en) * | 2009-03-13 | 2011-01-12 | 济南三鼎电气有限责任公司 | Intelligent compensation capacitance for track circuit |
| US9160164B2 (en) * | 2010-03-02 | 2015-10-13 | Accumetrics, Inc. | Method and apparatus for fault detection of series diodes in rectifiers |
| CN102556118B (en) * | 2012-01-06 | 2014-06-18 | 北京交通大学 | Fault online diagnosis method of uninsulated track circuit tuning zone equipment |
-
2018
- 2018-07-18 CN CN201810790377.XA patent/CN109061361B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109061361A (en) | 2018-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109061361B (en) | ZPW-2000 compensating electric capacity open-circuit fault method for early warning | |
| CN110160791B (en) | System and method for diagnosing faults of induction motor bearing based on wavelet-spectral kurtosis | |
| CN102707232B (en) | Motor apparatus state on_line monitoring device and monitoring method thereof | |
| CN105547465A (en) | Transformer vibration signal winding state feature extraction method | |
| WO2016029629A1 (en) | System and method for judging interior looseness of power transformer | |
| CN103438797B (en) | Deformation of transformer winding online test method and system | |
| CN101201386B (en) | Method for locating parameter type fault of analogue integrated circuit | |
| CN102798798A (en) | Power transformer winding deformation detection method based on vibration analysis | |
| CN103018629A (en) | Method for analyzing power system fault recording data based on Marla algorithm | |
| CN105372616A (en) | CVT state on-line test system and on-line evaluation method | |
| CN106597160B (en) | Electronic equipment fault detection method and device | |
| CN115032553A (en) | On-line diagnosis method and system for vehicle-mounted fuel cell | |
| CN110553789A (en) | state detection method and device of piezoresistive pressure sensor and brake system | |
| CN105423908A (en) | Transformer winding deformation live test method and system | |
| CN112345865A (en) | Power capacitor running state online evaluation early warning device and method | |
| CN103267652B (en) | Intelligent online diagnosis method for early failures of equipment | |
| CN202041614U (en) | Insulation defect local discharging signal identifying device of ultrahigh voltage cable line | |
| CN104655967A (en) | Extraction method for vibration signal characteristic quantity of winding of distribution transformer | |
| CN211014561U (en) | Non-invasive asynchronous motor initial fault detection system | |
| CN105203915B (en) | A kind of Winding in Power Transformer loosens defect diagonsis system and diagnostic method | |
| CN110531261A (en) | A kind of non-intrusion type initial failure of asynchronous electromotor detection method and system | |
| CN110058117B (en) | Reactor turn-to-turn short circuit fault detection method based on outer package vibration distribution | |
| KR101248232B1 (en) | Diagnosis method and system on deteriration of parallel driven utility equipments | |
| CN110057587A (en) | A kind of nuclear power pump bearing intelligent failure diagnosis method and system | |
| CN110133459A (en) | A kind of line insulator operating condition ground detection method |
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 |