CN113464274A - Diesel generator health state assessment system and method - Google Patents
Diesel generator health state assessment system and method Download PDFInfo
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- CN113464274A CN113464274A CN202110807829.2A CN202110807829A CN113464274A CN 113464274 A CN113464274 A CN 113464274A CN 202110807829 A CN202110807829 A CN 202110807829A CN 113464274 A CN113464274 A CN 113464274A
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000036541 health Effects 0.000 title claims abstract description 35
- 230000008569 process Effects 0.000 claims abstract description 25
- 238000011156 evaluation Methods 0.000 claims abstract description 19
- 238000007781 pre-processing Methods 0.000 claims abstract description 17
- 238000007405 data analysis Methods 0.000 claims abstract description 13
- 238000004458 analytical method Methods 0.000 claims description 6
- 230000003862 health status Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 238000012854 evaluation process Methods 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 2
- 239000002585 base Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The invention discloses a system and a method for evaluating the health state of a diesel generator, which relate to the technical field of generators and comprise a database, a monitoring center, a data acquisition module, a data preprocessing module, a data analysis module and a generator evaluation module; the method comprises the steps of establishing a basic information sub-base and a generator health assessment reference sub-base in a database, then rapidly judging whether a starting motor is in a fault state by acquiring data of the generator in the operation process and matching the data with the basic information sub-base and the generator health assessment reference sub-base, and when the generator is in the fault state, further acquiring fault reasons and fault contents of the generator and grading the state of the generator, so that the defect that the traditional generator health state assessment can only be carried out manually is overcome, and meanwhile, the assessment result is more accurate.
Description
Technical Field
The invention belongs to the technical field of generators, and particularly relates to a system and a method for evaluating the health state of a diesel generator.
Background
With the rapid improvement of modern science and technology and advanced manufacturing technology, the diesel generator is one of important power sources of equipment, and has irreplaceable effect on the work of guaranteeing high efficiency and stability of the equipment. The diesel generator continuously operates for a long time in a complex and variable environment, the load of the diesel generator is heavy, the load is variable, the parallel operation and the power-off switching are frequent, and various faults are easy to occur under the influence of saline-alkali corrosion, high temperature and the like.
In the prior art, most of the diesel generator health state detection can be judged only by human experience, the judgment mode almost completely depends on manual work, and the judgment result may have a great difference from the actual situation.
Disclosure of Invention
The invention aims to provide a system and a method for evaluating the health state of a diesel generator.
The purpose of the invention can be realized by the following technical scheme: a diesel generator health state assessment system and method comprises a database, a monitoring center, a data acquisition module, a data preprocessing module, a data analysis module and a generator assessment module;
the database is used for establishing basic information sub-libraries and generator health evaluation reference sub-libraries of different types of diesel generators;
the data acquisition module is used for acquiring data of the generator in the operation process;
the data preprocessing module is used for preprocessing the data acquired by the data acquisition module;
the data analysis module is used for analyzing the processing result of the data preprocessing module;
the generator evaluation module is used for evaluating the running state of the generator according to the analysis result of the data analysis module, and the specific process comprises the following steps:
step G1: obtaining a matching result of the operation data of the generator and the fault type subset;
step G2: when the running data of the generator is not matched with the fault information in the fault type subset successfully, the generator is indicated to be in a good running state in the ith stage of the life cycle of the generator;
step G3: when the operation data of the generator is successfully matched with the fault information in the fault type subset, marking the successfully matched fault information as j, wherein j is 1, 2, … …, m, and m is an integer; acquiring fault reasons and fault contents corresponding to the fault information and corresponding system preset subtraction values Kj;
step G4: by the formula
The score value PX of the generator is obtained.
Further, the basic information sub-base at least comprises the model, specification, weight and rated power of the generator, a selection sequence is established for the basic information sub-base of each diesel generator, and the selection sequence is respectively bound with the corresponding basic information sub-base of the diesel generator.
Further, the establishment process of the generator health assessment reference sub-library comprises the following steps: establishing a standard state reference set of a generator life cycle; dividing the life cycle of the generator into n stages, and acquiring a time period corresponding to each stage of the life cycle of the generator according to the service life of the generator; establishing a fault type subset according to each stage of the life cycle of the generator; and generating an index sequence, and connecting the basic information sub-library of the generator with the generator health assessment reference sub-library.
Further, the fault type subset includes a plurality of pieces of fault information, and the fault information includes fault reasons, fault contents and corresponding system preset subtraction values.
Further, the acquisition process of the data of the generator in the operation process comprises the following steps: the type of the generator, the time length of the generator which is put into use and the operation data generated by the generator in the operation process are generated, and an operation data set is generated according to the obtained operation data.
Further, the preprocessing process of the data acquired by the data acquisition module comprises the following steps: obtaining a selection sequence corresponding to the generator according to the obtained model of the generator, and obtaining a basic information sub-library of the generator through the selection sequence; obtaining a generator health assessment reference sub-library connected with a basic information sub-library of the generator through an index sequence; and determining the stage of the generator in the life cycle according to the time length YT of the generator which is put into use, and marking the time corresponding to the stage as a period to be evaluated.
Further, the analysis process of the data analysis module comprises: marking the period to be evaluated of the generator as the ith stage of the life cycle of the generator, wherein the corresponding period is (STi, STi + 1); acquiring a fault type subset of a corresponding period, and matching the operation data of the generator with the fault type subset; and outputting the matching result of the operation data of the generator and the fault type subset.
A health state assessment method for a diesel generator comprises the following steps:
the method comprises the following steps: establishing a basic information sub-library and a generator health evaluation reference sub-library of diesel generators of different models in a database;
step two: obtaining the model of the generator, the time length of the generator which is put into use and operation data;
step three: and matching the operation data of the generator with the corresponding fault type subsets, acquiring fault information of the generator according to the matching result, and grading the state of the generator.
The invention has the beneficial effects that: in the invention, a basic information sub-library and a generator health evaluation reference sub-library are established in a database, then, data of a generator in the operation process is acquired and matched with the basic information sub-library and the generator health evaluation reference sub-library according to the data, so that whether the generator is in a fault state or not is rapidly judged, and when the generator is in the fault state, the fault reason and the fault content of the generator can be further acquired, the state of the generator is graded, the defect that the traditional generator health state evaluation can only be carried out manually is overcome, and meanwhile, the evaluation result is more accurate.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic block diagram of a system and method for assessing the state of health of a diesel generator.
Detailed Description
As shown in fig. 1, a health status evaluation system for a diesel generator includes a database, a monitoring center, a data acquisition module, a data preprocessing module, a data analysis module, and a generator evaluation module;
establishing basic information sub-libraries of diesel generators of different models in a database, wherein the basic information sub-libraries at least comprise the model, specification, weight and rated power of the generator, establishing a selection sequence aiming at the basic information sub-library of each diesel generator, and binding the selection sequence with the corresponding basic information sub-libraries of the diesel generators respectively; the method comprises the following steps of establishing a generator health assessment reference sub-library aiming at different models of diesel generators, wherein the establishment process of the generator health assessment reference sub-library comprises the following steps:
step D1: establishing a standard state reference set of a generator life cycle;
step D2: dividing the life cycle of the generator into n stages, wherein the time periods corresponding to each stage of the life cycle of the generator are respectively (ST1, ST2), (ST2, ST3), … …, (STn, STn +1) according to the using duration of the generator;
step D3: establishing a fault type subset according to each stage of the life cycle of the generator, wherein the fault type subset comprises a plurality of pieces of fault information, and the fault information comprises fault reasons, fault contents and corresponding system preset subtraction values;
step D4: generating a generator health assessment reference sub-library according to the data of the steps D1-D3;
step D5: and generating an index sequence, and connecting the basic information sub-library of the generator with the generator health assessment reference sub-library.
The data acquisition module is used for acquiring data of the generator in the operation process, and the specific acquisition process comprises the following steps:
step C1: obtaining the model of the generator, and sending the model of the generator to a data preprocessing module;
step C2: acquiring the time length of the generator which is put into use, and marking the time length of the generator which is put into use as YT;
step C3: acquiring operation data generated in the operation process of the generator, and generating an operation data set according to the acquired operation data;
step C4: sending the data obtained in the steps C1-C4 to a data preprocessing module;
the data preprocessing module is used for preprocessing the data acquired by the data acquisition module, and the specific process comprises the following steps:
step S1: obtaining a selection sequence corresponding to the generator according to the obtained model of the generator, and obtaining a basic information sub-library of the generator through the selection sequence;
step S2: obtaining a generator health assessment reference sub-library connected with a basic information sub-library of the generator through an index sequence;
step S3: determining the stage of the generator in the life cycle according to the time length YT of the generator which is put into use, and marking the time corresponding to the stage as a period to be evaluated;
step S4: the processing results of steps S1-S3 are sent to the data analysis module.
The data analysis module is used for analyzing the processing result of the data preprocessing module, and the specific analysis process comprises the following steps:
step F1: marking the period to be evaluated of the generator as the ith stage of the life cycle of the generator, wherein the corresponding period is (STi, STi + 1); wherein i is 1, 2, … …, n;
step F2: acquiring a fault type subset of a corresponding period, and matching the operation data of the generator with the fault type subset;
step F3: and outputting a matching result of the operation data of the generator and the fault type subset, and sending the matching result to the generator evaluation module.
The generator evaluation module is used for evaluating the running state of the generator according to the analysis result of the data analysis module, and the specific process comprises the following steps:
step G1: obtaining a matching result of the operation data of the generator and the fault type subset;
step G2: when the running data of the generator is not matched with the fault information in the fault type subset successfully, the generator is indicated to be in a good running state in the ith stage of the life cycle of the generator;
step G3: when the operation data of the generator is successfully matched with the fault information in the fault type subset, marking the successfully matched fault information as j, wherein j is 1, 2, … …, m, and m is an integer; acquiring fault reasons and fault contents corresponding to the fault information and corresponding system preset subtraction values Kj;
step G4: by the formula
Obtaining a score PX of the generator, wherein C is a system preset initial score;
step G5: and sending the fault reason, the fault content and the score PX of the generator obtained in the steps G1-G4 to a monitoring center.
A health state assessment method for a diesel generator comprises the following steps:
the method comprises the following steps: establishing a basic information sub-library and a generator health evaluation reference sub-library of diesel generators of different models in a database;
step two: obtaining the model of the generator, the time length of the generator which is put into use and operation data;
step three: and matching the operation data of the generator with the corresponding fault type subsets, acquiring fault information of the generator according to the matching result, and grading the state of the generator.
The above formulas are all calculated by removing dimensions and taking numerical values thereof, the formula is a formula which is obtained by acquiring a large amount of data and performing software simulation to obtain the closest real situation, and the preset parameters and the preset threshold value in the formula are set by the technical personnel in the field according to the actual situation or obtained by simulating a large amount of data.
The foregoing is illustrative and explanatory of the structure of the invention, and various modifications, additions or substitutions in a similar manner to the specific embodiments described may be made by those skilled in the art without departing from the structure or scope of the invention as defined in the claims. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and there may be other divisions when the actual implementation is performed; the modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of the embodiment.
It will also be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above examples are only intended to illustrate the technical process of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical process of the present invention without departing from the spirit and scope of the technical process of the present invention.
Claims (9)
1. A health state evaluation system of a diesel generator is characterized by comprising a database, a monitoring center, a data acquisition module, a data preprocessing module, a data analysis module and a generator evaluation module;
the database is used for establishing basic information sub-libraries and generator health evaluation reference sub-libraries of different types of diesel generators;
the data acquisition module is used for acquiring data of the generator in the operation process;
the data preprocessing module is used for preprocessing the data acquired by the data acquisition module;
the data analysis module is used for analyzing the processing result of the data preprocessing module;
and the generator evaluation module is used for evaluating the running state of the generator according to the analysis result of the data analysis module.
2. The system according to claim 1, wherein the sub-information bases at least include generator model, specification, weight and rated power, and a selection sequence is established for each sub-information base of the diesel generator, and the selection sequence is respectively bound to the corresponding sub-information base of the diesel generator.
3. The system for evaluating the health status of the diesel generator according to claim 1, wherein the process for establishing the generator health evaluation reference sub-library comprises: establishing a standard state reference set of a generator life cycle; dividing the life cycle of the generator into n stages, and acquiring a time period corresponding to each stage of the life cycle of the generator according to the service life of the generator; establishing a fault type subset according to each stage of the life cycle of the generator; and generating an index sequence, and connecting the basic information sub-library of the generator with the generator health assessment reference sub-library.
4. The system according to claim 3, wherein the fault type subset includes a plurality of pieces of fault information, and the fault information includes fault reasons, fault contents and corresponding default derating values.
5. The system for evaluating the health status of a diesel generator according to claim 1, wherein the process of acquiring data of the generator during operation comprises: the type of the generator, the time length of the generator which is put into use and the operation data generated by the generator in the operation process are generated, and an operation data set is generated according to the obtained operation data.
6. The system for assessing the health of a diesel generator as claimed in claim 1, wherein the preprocessing of the data acquired by the data acquisition module comprises: obtaining a selection sequence corresponding to the generator according to the obtained model of the generator, and obtaining a basic information sub-library of the generator through the selection sequence; obtaining a generator health assessment reference sub-library connected with a basic information sub-library of the generator through an index sequence; and determining the stage of the generator in the life cycle according to the time length YT of the generator which is put into use, and marking the time corresponding to the stage as a period to be evaluated.
7. The system for evaluating the health status of a diesel generator according to claim 1, wherein the analysis process of the data analysis module comprises: marking the period to be evaluated of the generator as the ith stage of the life cycle of the generator, wherein the corresponding period is (STi, STi + 1); acquiring a fault type subset of a corresponding period, and matching the operation data of the generator with the fault type subset; and outputting the matching result of the operation data of the generator and the fault type subset.
8. The system for evaluating the health status of a diesel generator according to claim 1, wherein the evaluation process of the generator comprises the steps of:
step G1: obtaining a matching result of the operation data of the generator and the fault type subset;
step G2: when the running data of the generator is not matched with the fault information in the fault type subset successfully, the generator is indicated to be in a good running state in the ith stage of the life cycle of the generator;
step G3: when the running data of the generator is successfully matched with the fault information in the fault type subset, marking the successfully matched fault information as j, and acquiring a fault reason and a fault content corresponding to the fault information and a corresponding system preset subtraction value Kj;
step G4: by the formula
The score value PX of the generator is obtained.
9. A health state assessment method for a diesel generator is characterized by comprising the following steps:
the method comprises the following steps: establishing a basic information sub-library and a generator health evaluation reference sub-library of diesel generators of different models in a database;
step two: obtaining the model of the generator, the time length of the generator which is put into use and operation data;
step three: and matching the operation data of the generator with the corresponding fault type subsets, acquiring fault information of the generator according to the matching result, and grading the state of the generator.
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2021
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| US20160061173A1 (en) * | 2014-08-27 | 2016-03-03 | General Electric Company | System and method for determining health of an engine-generator set |
| CN107121943A (en) * | 2016-02-24 | 2017-09-01 | 西门子公司 | A kind of method and apparatus for being used to obtain the health forecast information of intelligence instrument |
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