CN105717916A - Electric actuating mechanism fault diagnosis method - Google Patents
Electric actuating mechanism fault diagnosis method Download PDFInfo
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- CN105717916A CN105717916A CN201610155877.7A CN201610155877A CN105717916A CN 105717916 A CN105717916 A CN 105717916A CN 201610155877 A CN201610155877 A CN 201610155877A CN 105717916 A CN105717916 A CN 105717916A
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- fault
- electric operator
- running status
- actuating mechanism
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0275—Fault isolation and identification, e.g. classify fault; estimate cause or root of failure
- G05B23/0278—Qualitative, e.g. if-then rules; Fuzzy logic; Lookup tables; Symptomatic search; FMEA
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24048—Remote test, monitoring, diagnostic
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- Engineering & Computer Science (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Quality & Reliability (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Testing And Monitoring For Control Systems (AREA)
Abstract
The invention discloses an electric actuating mechanism fault diagnosis method. The electric actuating mechanism fault diagnosis method comprises the steps that operating data and maintenance data of an electric actuating mechanism are analyzed to establish a knowledge base of operating states of the electric actuating mechanism and a diagnosis model of the electric actuating mechanism; the state characteristic quantity of the electric actuating mechanism during debugging and operation is extracted, operation is conducted on the state characteristic quantity according to the diagnosis model, and the operating state of the electric actuating mechanism is judged; if the operating state of the electric actuating mechanism is a fault state, it is determined that the electric actuating mechanism breaks down; when the electric actuating mechanism is in the fault state, the fault type of the fault state is determined according to fault classification, and self-recovery operation is conducted on the fault to restore the normal working state of the electric actuating mechanism. The electric actuating mechanism fault diagnosis method achieves automatic fault diagnosis, meets the control system fault detection and diagnosis demands in the large complicated production process and improves the fault diagnosis efficiency.
Description
Technical field
The present invention relates to technical field of industrial control, particularly relate to a kind of fault of electric actuator diagnostic method.
Background technology
In large complicated production process, actuator has that distribution is wide, quantity big, installation site often compares the features such as special.Electric operator has the incomparable advantage of other a few class media due to its electricity consumption as power, so development in recent years is the fastest, range of application constantly extends.The generating set put into operation along with China's electric power enterprise develops to maximization, precise treatment, increasingly automated direction day by day, continuous lifting to set steady with cost-effectiveness requirement, the high reliability of guarantee equipment, diagnoses in time and fixes a breakdown, and has become as the important content of equipment control and maintenance.For large complicated production process, it promotes day by day to controlling the system failure detection demand with diagnosis, only carries out fault diagnosis by manpower and is difficult to accomplish in time, find accurately and efficiently and repair actuator failure.
Existing fault diagnosis system is complete not to the detection means of actuator failure, lack the in-depth analysis evaluation capacity automatically to fault, the treatment measures taked are more single, big for personnel specialty ability dependency, cannot meeting large complicated production process to controlling the demand that system failure detection promotes day by day with diagnosis, the efficiency of fault diagnosis is very low.
Summary of the invention
It is an object of the invention to provide a kind of fault of electric actuator diagnostic method, to realize the automatic diagnosis to fault, meet the large complicated production process demand to controlling system failure detection and diagnosis, promote fault diagnosis efficiency.
For solving above-mentioned technical problem, the present invention provides a kind of fault of electric actuator diagnostic method, and the method includes:
To the service data of electric operator with safeguard that data are analyzed, set up the knowledge base of the running status of electric operator and the diagnostic cast of electric operator；
Extract the electric operator state characteristic quantity in debugging with run duration, according to described diagnostic cast, described state characteristic quantity is carried out computing, it is judged that the running status of electric operator；
If the running status of electric operator is malfunction, it is determined that electric operator breaks down；
When electric operator is in malfunction, according to the classification of fault, it is determined that the fault type of malfunction, fault is carried out self-recoverage operation, make electric operator recover normal operating conditions.
Preferably, described method also includes:
If self-recoverage operation failure, return malfunction to the control system of electric operator, ask artificial treatment.
Preferably, described fault is carried out self-recoverage operation, including:
According to fault type, fault self-recoverage scheme base finds out the fault self-recoverage scheme corresponding with fault type, perform the fault self-recoverage scheme corresponding with fault type.
Preferably, described extraction electric operator is debugging the state characteristic quantity with run duration, including:
In the running of electric operator, the state parameter p of monitoring electric operator, extracts state characteristic quantity v from state parameter p.
Preferably, it is functional relationship between the running status s and state characteristic quantity v of electric operator, s=f (v).
Preferably, the running status of described judgement electric operator, including:
If running status s is at the normal interval S of the definition of described knowledge baseNIn, S ∈ SNTime, it is determined that the running status of electric operator is normal operating condition；
If running status s is not at the normal interval S of the definition of described knowledge baseNIn,Time, it is determined that the running status of electric operator is malfunction.
Preferably, described method also includes:
The knowledge base of the running status of electric operator and diagnostic cast are configured in the controller of electric operator.
A kind of fault of electric actuator diagnostic method provided by the present invention, to the service data of electric operator with safeguard that data are analyzed, sets up the knowledge base of the running status of electric operator and the diagnostic cast of electric operator；Extract the electric operator state characteristic quantity in debugging with run duration, according to described diagnostic cast, described state characteristic quantity is carried out computing, it is judged that the running status of electric operator；If the running status of electric operator is malfunction, it is determined that electric operator breaks down；When electric operator is in malfunction, according to the classification of fault, it is determined that the fault type of malfunction, fault is carried out self-recoverage operation, make electric operator recover normal operating conditions.Visible, according to diagnostic cast, state characteristic quantity is carried out computing, judge the running status of electric operator, if the running status of electric operator is malfunction, determine that electric operator breaks down, namely adopt the diagnostic cast of electric operator to diagnose whether electric operator breaks down, and when electric operator is in malfunction, classification according to fault, determine the fault type of malfunction, fault is carried out self-recoverage operation, electric operator is made to recover normal operating conditions, so realize the automatic diagnosis to fault, meet the large complicated production process demand to controlling system failure detection and diagnosis, promote fault diagnosis efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the flow chart of a kind of fault of electric actuator diagnostic method provided by the present invention；
Fig. 2 is fault diagnosis schematic diagram in the present invention；
Fig. 3 is mechanism's slight jam faults self-recoverage scheme schematic diagram.
Detailed description of the invention
The core of the present invention is to provide a kind of fault of electric actuator diagnostic method, to realize the automatic diagnosis to fault, meets the large complicated production process demand to controlling system failure detection and diagnosis, promotes fault diagnosis efficiency.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
Refer to the flow chart that Fig. 1, Fig. 1 are a kind of fault of electric actuator diagnostic method provided by the present invention, the method includes:
S11: to the service data of electric operator with safeguard that data are analyzed, sets up the knowledge base of the running status of electric operator and the diagnostic cast of electric operator；
S12: extract the electric operator state characteristic quantity in debugging with run duration, according to diagnostic cast, state characteristic quantity is carried out computing, it is judged that the running status of electric operator；
S13: if the running status of electric operator is malfunction, it is determined that electric operator breaks down.
S14: when electric operator is in malfunction, according to the classification of fault, it is determined that the fault type of malfunction, and fault is carried out self-recoverage operation, makes electric operator recover normal operating conditions.
Visible, according to diagnostic cast, state characteristic quantity is carried out computing, judge the running status of electric operator, if the running status of electric operator is malfunction, determine that electric operator breaks down, namely adopt the diagnostic cast of electric operator to diagnose whether electric operator breaks down, and when electric operator is in malfunction, classification according to fault, determine the fault type of malfunction, fault is carried out self-recoverage operation, electric operator is made to recover normal operating conditions, so realize the automatic diagnosis to fault, meet the large complicated production process demand to controlling system failure detection and diagnosis, promote fault diagnosis efficiency.
Concrete, the knowledge base of the running status of electric operator and diagnostic cast are configured in the controller of electric operator.
If self-recoverage operation failure, return malfunction to the control system of electric operator, ask artificial treatment.
Wherein, the process that fault carries out self-recoverage operation is: according to fault type, finds out the fault self-recoverage scheme corresponding with fault type in fault self-recoverage scheme base, performs the fault self-recoverage scheme corresponding with fault type.
Extracting electric operator in the process of debugging with the state characteristic quantity of run duration is: in the running of electric operator, and the state parameter p of monitoring electric operator extracts state characteristic quantity v from state parameter p.
Wherein, it is functional relationship between the running status s and state characteristic quantity v of electric operator, s=f (v).
The process judging the running status of electric operator is: if running status s is at the normal interval S of the definition of knowledge baseNIn, S ∈ SNTime, it is determined that the running status of electric operator is normal operating condition；If running status s is not at the normal interval S of the definition of knowledge baseNIn,Time, it is determined that the running status of electric operator is malfunction.
Detailed, based on the method, first, according to the excavation of on-the-spot electric operator operation and maintenance data and research, the method that utility theory is analyzed, set up electric operator State Knowledge storehouse and diagnostic cast, be configured in the controller of mechanism；Wherein, can utilize communication bus that knowledge base and diagnostic cast are upgraded according to knowledge accumulation by electric operator condition diagnosing and debugging efforts station；
Then, the state characteristic quantity of electric executing mechanism debugging and run duration is extracted, by the computing of analysis model on line, it is judged that its duty；
Then, the conclusion according to diagnostic cast, when finding that electric operator is in malfunction, according to failure modes, fault can be recovered and carry out self-recoverage operation analysis operation result according to design；To fault fault-signal can not be sent, turn artificial treatment.It is fault diagnosis schematic diagram in the present invention that concrete diagnostic process is referred to Fig. 2, Fig. 2.
Thus by the fault diagnosis model in knowledge based storehouse, fault of electric actuator being carried out intelligent classification process, the fault recovered of middle appearance of automatically resuming operation, to reduce electric operator life-cycle O&M cost.
For the self-recoverage process of fault, detailed process is as follows:
1, with debugging efforts station, corresponding knowledge base and diagnostic cast are configured in actuator controller by electric operator condition diagnosing when debugging or safeguarding；
2, in running, by monitoring that actuator state parameter p extracts state characteristic quantity v；
3, running status s=f (v) is judged by electric operator diagnostic cast；
If 4 running status s are s ∈ S in the normal interval that knowledge base definesN, actuator receives control instruction, properly functioning, and returns state normal signal；
5, otherwise, it is judged that be in malfunction, fault classification process of classifying are carried out according to running status s；To self recovery fault, according to fault type, perform corresponding scheme in fault self-recoverage scheme base, and monitor execution result, such as success, forward normal operating mode to.
Detailed, for the self-recoverage scheme of the slight jam faults of mechanism, concrete execution process is as follows:
Record triggers travel position and the time of slight bite self-recoverage scheme, and the maximum moment limit value limited as reached mechanism is then reported and performed failure, terminates scheme and performs；Otherwise improve torque limit value to high one grade temporarily, the certain stroke of the small size rollback of actuator, it is defaulted as the 3% of full stroke,
Again to command request position move, check can cross slight bite point under this torque limit value, scheme perform terminate time righting moment limit value to script setting value；
If self-recoverage operation failure or be non-self-recoverage fault, then return malfunction to controlling system, ask artificial treatment.It is mechanism's slight jam faults self-recoverage scheme schematic diagram that idiographic flow is referred to Fig. 3, Fig. 3.
In the present invention, by to the excavation of on-the-spot electric operator operation and maintenance data and research, set up electric operator State Knowledge storehouse and diagnostic cast, realize the classification to fault and evaluation, and process respectively according to diagnostic result, implement self-recoverage to fault can be recovered according to design procedure, reduce the target of electric operator life-cycle O&M cost.
To sum up, a kind of fault of electric actuator diagnostic method provided by the present invention, to the service data of electric operator with safeguard that data are analyzed, set up the knowledge base of the running status of electric operator and the diagnostic cast of electric operator；Extract the electric operator state characteristic quantity in debugging with run duration, according to described diagnostic cast, described state characteristic quantity is carried out computing, it is judged that the running status of electric operator；If the running status of electric operator is malfunction, it is determined that electric operator breaks down；When electric operator is in malfunction, according to the classification of fault, it is determined that the fault type of malfunction, fault is carried out self-recoverage operation, make electric operator recover normal operating conditions.
Visible, according to diagnostic cast, state characteristic quantity is carried out computing, judge the running status of electric operator, if the running status of electric operator is malfunction, determine that electric operator breaks down, namely adopt the diagnostic cast of electric operator to diagnose whether electric operator breaks down, and when electric operator is in malfunction, classification according to fault, determine the fault type of malfunction, fault is carried out self-recoverage operation, electric operator is made to recover normal operating conditions, so realize the automatic diagnosis to fault, meet the large complicated production process demand to controlling system failure detection and diagnosis, promote fault diagnosis efficiency.
Above a kind of fault of electric actuator diagnostic method provided by the present invention is described in detail.Principles of the invention and embodiment are set forth by specific case used herein, and the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to the present invention carries out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (7)
1. a fault of electric actuator diagnostic method, it is characterised in that including:
To the service data of electric operator with safeguard that data are analyzed, set up the knowledge base of the running status of electric operator and the diagnostic cast of electric operator；
Extract the electric operator state characteristic quantity in debugging with run duration, according to described diagnostic cast, described state characteristic quantity is carried out computing, it is judged that the running status of electric operator；
If the running status of electric operator is malfunction, it is determined that electric operator breaks down；
When electric operator is in malfunction, according to the classification of fault, it is determined that the fault type of malfunction, fault is carried out self-recoverage operation, make electric operator recover normal operating conditions.
2. the method for claim 1, it is characterised in that also include:
If self-recoverage operation failure, return malfunction to the control system of electric operator, ask artificial treatment.
3. the method for claim 1, it is characterised in that described fault is carried out self-recoverage operation, including:
According to fault type, fault self-recoverage scheme base finds out the fault self-recoverage scheme corresponding with fault type, perform the fault self-recoverage scheme corresponding with fault type.
4. the method for claim 1, it is characterised in that described extraction electric operator is debugging the state characteristic quantity with run duration, including:
In the running of electric operator, the state parameter p of monitoring electric operator, extracts state characteristic quantity v from state parameter p.
5. method as claimed in claim 4, it is characterised in that be functional relationship between the running status s and state characteristic quantity v of electric operator, s=f (v).
6. method as claimed in claim 5, it is characterised in that the running status of described judgement electric operator, including:
If running status s is at the normal interval S of the definition of described knowledge baseNIn, S ∈ SNTime, it is determined that the running status of electric operator is normal operating condition；
If running status s is not at the normal interval S of the definition of described knowledge baseNIn,Time, it is determined that the running status of electric operator is malfunction.
7. the method as described in any one in claim 1 to 6, it is characterised in that also include:
The knowledge base of the running status of electric operator and diagnostic cast are configured in the controller of electric operator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610155877.7A CN105717916A (en) | 2016-03-18 | 2016-03-18 | Electric actuating mechanism fault diagnosis method |
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| CN201610155877.7A CN105717916A (en) | 2016-03-18 | 2016-03-18 | Electric actuating mechanism fault diagnosis method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109086153A (en) * | 2018-07-24 | 2018-12-25 | 郑州云海信息技术有限公司 | A kind of restorative procedure and its relevant apparatus of storage device failure |
| CN113298328A (en) * | 2020-02-19 | 2021-08-24 | 北京国电智深控制技术有限公司 | Method and device for detecting state of actuating mechanism |
| CN114527706A (en) * | 2022-01-27 | 2022-05-24 | 大族激光科技产业集团股份有限公司 | Equipment control method and device, terminal equipment and storage medium |
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| CN104002960A (en) * | 2014-05-27 | 2014-08-27 | 中国航天科技集团公司烽火机械厂 | Method and system for recovering vibration faults of electric steering engine |
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| US20050114087A1 (en) * | 2003-11-21 | 2005-05-26 | Siemens Aktiengesellschaft | Method and device for fault diagnosis in control systems in an internal combustion engine in a motor vehicle |
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| CN109086153A (en) * | 2018-07-24 | 2018-12-25 | 郑州云海信息技术有限公司 | A kind of restorative procedure and its relevant apparatus of storage device failure |
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| CN113298328B (en) * | 2020-02-19 | 2024-02-06 | 北京国电智深控制技术有限公司 | Method and device for detecting state of actuating mechanism |
| CN114527706A (en) * | 2022-01-27 | 2022-05-24 | 大族激光科技产业集团股份有限公司 | Equipment control method and device, terminal equipment and storage medium |
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Application publication date: 20160629 |