CN1375703A - Systemic method of diagnosing electric trouble - Google Patents

Systemic method of diagnosing electric trouble Download PDF

Info

Publication number
CN1375703A
CN1375703A CN 02115650 CN02115650A CN1375703A CN 1375703 A CN1375703 A CN 1375703A CN 02115650 CN02115650 CN 02115650 CN 02115650 A CN02115650 A CN 02115650A CN 1375703 A CN1375703 A CN 1375703A
Authority
CN
China
Prior art keywords
failure
trouble spot
making
fault diagnosis
point
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.)
Pending
Application number
CN 02115650
Other languages
Chinese (zh)
Inventor
阮学峰
韩水生
巫世晶
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan University WHU
Original Assignee
Wuhan University WHU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan University WHU filed Critical Wuhan University WHU
Priority to CN 02115650 priority Critical patent/CN1375703A/en
Publication of CN1375703A publication Critical patent/CN1375703A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

The system method for diagnosing electric failure includes the following steps: 1. creating functional structure diagram, based on said diagram and according to the failure phenomenon and promotion or experience making judgement and narrowing the range of failure; 2. making principle or working process analysis in the narrowed range to put forward possible failure point; 3. making possibility analysis of failure point and ordering according to failure extent; 4. making technical detection one-by-one and finding out failure point; and 5. removing failure according to the conventional method.

Description

System analytic method of electric fault diagnosis
Technical field
The present invention relates to a kind of System analytic method of electric fault diagnosis, in particular for the systems approach of the fault diagnosis of electrified systems such as light current and little electricity.
Background technology
Electric fault is outwardness, takes place at random, and also is complicated.Fault is why complicated, and except the fault form of expression differs and new technology is constantly used and understanding goes up the not enough reason, more chief reason then is due to incompatible with it or its diagnostic method of the method for fault diagnosis improves inadequately.Traditional method for diagnosing faults (containing direct-vision method, empirical method, replacement method and analytical approach) can solve general problem, and is especially then powerless or a tax on one's mind hard to complicated problems a little to non-general problem.
Summary of the invention
The present invention provides a kind of System analytic method of electric fault diagnosis at the problems referred to above exactly, and the efficient of this method is higher, and can solve complicated electric fault problem.
Technical scheme provided by the invention is: a kind of System analytic method of electric fault diagnosis may further comprise the steps: one, conformation function layer of structure figure, again based on this figure, judge according to phenomenon of the failure and prompting or experience, and scope of failure is dwindled (subfunction); Two, carry out principle or job analysis in the scope after dwindling, propose possible trouble spot; Three, the possibility of trouble spot is carried out size and analyze (probabilistic method), point out that size and order list; Four, carry out technology for detection (technology law) one by one, just can find the place of trouble spot; Five, fix a breakdown routinely.
The present invention dwindles fault coverage by functional structure level method, and in as far as possible little scope, can bring into play the effect of analytic approach fully, make the result who is analyzed more clearly become technology law target to be detected by probabilistic method then, detect the trouble spot with technology law again, fix a breakdown at last.Thereby method of the present invention is used for electric fault diagnosis and eliminating is not only efficient, accurate, and can solve complicated electric fault problem.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 is the functional structure level figure of BC30 two-wheel slotter;
Fig. 3 is the left supporting cylinder electric control circuit figure of BC30 two-wheel slotter.
Embodiment
Referring to Fig. 1, the present invention is when carrying out electric fault diagnosis and getting rid of, and is ready with regard to technical information, testing tool, standby redundancy etc. earlier; Conformation function layer of structure figure then again based on this figure, judges according to phenomenon of the failure and prompting or experience, scope of failure is dwindled (subfunction); Then, this " subfunction " carried out principle or job analysis, propose possible trouble spot; With probabilistic method the possibility of trouble spot is carried out size and analyze, point out that size and order list; Carry out technology for detection more one by one, just can find the place of trouble spot; Fix a breakdown by adjustment or part exchanging at last.
BC30 two-wheel slotter is the modernization project equipment that integrates mechanical electronic hydraulic, is used for the based process of antiseepage, and Germany produces, domestic solely this.Under no foreign expert instructs,, successfully finished the Installation and Debugging operation work second time of this equipment by domestic technique strength.During this time, a lot of bigger electric faults occurred, all got rid of with this kind method afford.Now lift a wherein example explanation.1. phenomenon of the failure
(1) after the left support cylinder installation, finds that through test-run a machine left support cylinder is failure to actuate.
(2) non-fault prompting.2. fault diagnosis
At first, BC30 two-wheel slotter electrical system is carried out the functional structure levelization, and form functional structure level figure shown in Figure 2.Based on this figure, and being known by phenomenon of the failure, is not hydraulic system mainmast power failure, yet non-topworks mainmast left side support cylinder problem, but the problem of the relevant automatically controlled part of left support cylinder of PLC circuit.
Then, analytic approach according to fault diagnosis is done following summary to left support cylinder electric control principle: as shown in Figure 3, when instruction by stretching out button S47/ withdrawal button S52 and giving fashionable by load module 7-E243-1 point/0, if the right switch ES4 of mast angle of deviation cross spacing left-handed opening ES2/ satisfies output condition, then this instruction is moved with control electromagnetic valve Y110/Y111 through the PLC analyzing and processing and by ratio module 5-PMV4-0 point/1 an output certain voltage, when this oil circuit had certain pressure, left support cylinder was subjected to this fluid power driving tiltedly to draw hydraulic cylinder to stretch out/withdraw function to realize a left side.
Moreover, by analyzing, can point out many " trouble spot ", and do following arrangement by the size of its possibility:
(1) insurance F21/8A;
(2) button S47, S52;
(3) the spacing ES2 in the left and right sides, ES4;
(4) hydraulic buttery valve Y111, Y110;
(5) load module 7-E243, A-E243;
(6) output module B-A244,5-PMV4.
At last, the application technology method is checked one by one above-mentioned six, just can be found real trouble spot.3. diagnostic result and eliminating
Through check one by one its reason be mainmast left deflection run into left limit switch ES2 make its action due to.Adjust the ES2 position, through test-run a machine, left cylinder action is normal, and mainmast is scalable.Recover the ES2 tram subsequently, guarantee this limit function.

Claims (1)

1. System analytic method of electric fault diagnosis may further comprise the steps: one, conformation function layer of structure figure, again based on this figure, judge according to phenomenon of the failure and prompting or experience, and scope of failure is dwindled; Two, carry out principle or job analysis in the scope after dwindling, propose possible trouble spot; Three, the possibility of trouble spot is carried out size and analyze, point out that size and order list; Four, carry out technology for detection one by one, just can find the place of trouble spot; Five, fix a breakdown routinely.
CN 02115650 2002-03-29 2002-03-29 Systemic method of diagnosing electric trouble Pending CN1375703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02115650 CN1375703A (en) 2002-03-29 2002-03-29 Systemic method of diagnosing electric trouble

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02115650 CN1375703A (en) 2002-03-29 2002-03-29 Systemic method of diagnosing electric trouble

Publications (1)

Publication Number Publication Date
CN1375703A true CN1375703A (en) 2002-10-23

Family

ID=4743783

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 02115650 Pending CN1375703A (en) 2002-03-29 2002-03-29 Systemic method of diagnosing electric trouble

Country Status (1)

Country Link
CN (1) CN1375703A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1300694C (en) * 2003-06-08 2007-02-14 华为技术有限公司 Fault tree analysis based system fault positioning method and device
CN105164647A (en) * 2013-06-20 2015-12-16 惠普发展公司,有限责任合伙企业 Generating a fingerprint representing a response of an application to a simulation of a fault of an external service
CN105988462A (en) * 2015-06-30 2016-10-05 陕西同力重工股份有限公司 Mine area vehicle electric fault diagnosis method
CN114970888A (en) * 2021-10-08 2022-08-30 淮阴师范学院 Component fault analysis system based on electric power electrical control

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1300694C (en) * 2003-06-08 2007-02-14 华为技术有限公司 Fault tree analysis based system fault positioning method and device
CN105164647A (en) * 2013-06-20 2015-12-16 惠普发展公司,有限责任合伙企业 Generating a fingerprint representing a response of an application to a simulation of a fault of an external service
CN105988462A (en) * 2015-06-30 2016-10-05 陕西同力重工股份有限公司 Mine area vehicle electric fault diagnosis method
CN114970888A (en) * 2021-10-08 2022-08-30 淮阴师范学院 Component fault analysis system based on electric power electrical control
CN114970888B (en) * 2021-10-08 2023-04-18 淮阴师范学院 Component fault analysis system based on electric power electrical control

Similar Documents

Publication Publication Date Title
CN202947874U (en) Transmission system load running-in testing stand
CN106194702B (en) New-energy automobile electric vacuum pump tests systems test bed
CN103411773B (en) A kind of high-speed precision ball screw pair reliability test and test method thereof
CN109974770A (en) A kind of motor-driven valve condition detecting system and method
CN104793139A (en) Motor fault diagnosing and processing method
CN110531189B (en) Diagnosis method and device for turnout failure indication fault
CN1645534A (en) Method for inspecting a circuit breaker
CN1763385A (en) Valve oil supplement method for series connection cylinders and apparatus therefor
CN105139295A (en) Data mining method of mass information of on-line monitoring on power equipment
CN1321328C (en) Wavelet diagnostic system for initial failure of electromotor and method for diagnosing malfunction of electromotor
CN112684329A (en) Intelligent diagnosis method for mechanical fault of high-voltage circuit breaker
CN110333493A (en) A kind of weather radar transmitter failure detection system and method
CN109342919A (en) A kind of fault diagnosis system and method for automobile-used Drive Circuit for Injector Solenoid Valve
CN1375703A (en) Systemic method of diagnosing electric trouble
CN104326016B (en) Anti-rotation double detection system of vehicle electric power steering system
CN112858844A (en) Method and system for detecting direct current arc fault in photovoltaic system
CN109900465A (en) A kind of load ratio bridging switch method for diagnosing faults based on voice signal
CN109298336A (en) A kind of electric motor of automobile detection system
CN109557410A (en) The method for diagnosing faults of intelligent network connection electric vehicle power converter of switch reluctance motor
CN110716133B (en) High-voltage circuit breaker fault studying and judging method based on Internet of things and big data technology
CN219204173U (en) Direct-current grounding auxiliary power supply device capable of achieving road pulling and searching
CN1743865A (en) Plastic-casing circuit breaker instantaneous characteristic test device
CN107092247A (en) A kind of packaging production line method for diagnosing faults based on status data
CN206057599U (en) Motor assembles position detecting system
CN109932645A (en) A kind of switchgear spring operating mechanism method for diagnosing faults and device

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C12 Rejection of a patent application after its publication
RJ01 Rejection of invention patent application after publication