CN105004946A - Frequency converter fault analysis system and method and frequency converter - Google Patents
Frequency converter fault analysis system and method and frequency converter Download PDFInfo
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- CN105004946A CN105004946A CN201510375398.1A CN201510375398A CN105004946A CN 105004946 A CN105004946 A CN 105004946A CN 201510375398 A CN201510375398 A CN 201510375398A CN 105004946 A CN105004946 A CN 105004946A
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Abstract
The invention provides a frequency converter fault analysis system and method and a frequency converter. The frequency converter fault analysis system comprises a sampling setting unit, a data sampling unit and a data storage unit. The sampling setting unit is used for setting sampling triggering conditions and sampling objects. The sampling objects are one or more operational variables. The data sampling unit is used for sampling frequency converter operational variables corresponding to the sampling objects when a running state of a frequency converter meets sampling trigger conditions and stores the sampled data in the data storage unit. Effective data at the frequency converter fault moment can be captured according to the set sampling trigger conditions and is used for fault analysis.
Description
Technical field
The present invention relates to frequency converter field, more particularly, relate to a kind of frequency converter failure analytic system, method and frequency converter.
Background technology
Along with frequency converter is in a large amount of uses of industry control industry, the fault handling of frequency converter client occupies a large amount of man power and material of producer.At present, after frequency converter breaks down, frequency converter self can provide corresponding failure code, and user can according to fault alarm in user manual and diagnostic measures localizing faults type and solution.If cannot deal with problems according to user manual, then must contact with producer, the failure code provided according to user by producer and rig-site utilization environmental analysis are instructed and are dealt with problems.If still cannot orientation problem, then need producer marketing personal Solve on site problem.
After marketing personal reaches the spot, rig-site utilization environment need be analyzed and wait pending fault again to occur, carrying out analyzing failure cause to obtain fault moment data.If reproduction in the fault short time, then marketing personal must catch the research staff that related data sends producer to, is dealt with problems according to data analysis trouble reason by research staff; If the related data of not capturing, need to wait for that fault occurs next time.In this process, if the short time cannot reappear fault, then need marketing personal to keep watch for a long time scene, both affected the use of frequency converter, and also increased work load to marketing personal.Data break in addition owing to preserving in this mode is longer, and the data of catching likely cannot faults moment time of day, is unfavorable for fault analysis.
When the marketing personal at scene and the research staff of far-end still cannot locate and deal with problems, then research staff is needed to arrive Solve on site problem.
In above-mentioned frequency converter failure processing mode, occur to before producer personnel break down again to scene from fault, the data in frequency converter failure moment are not gathered and analyzed, and entirely judge by rule of thumb, therefore cannot quick solution problem, thus impact uses and even loses client.
Summary of the invention
The technical problem to be solved in the present invention is, for above-mentioned frequency converter failure location and overcome a difficulty, the problem of length consuming time, a kind of frequency converter failure analytic system, method and frequency converter are provided.
The technical scheme that the present invention solves the problems of the technologies described above is, a kind of frequency converter failure analytic system is provided, comprise sampling setting unit, data sampling unit and data storage cell, wherein: described sampling setting unit, for arranging sampling trigger condition and sample objects, described sample objects is one or more operation variablees of frequency converter; Described data sampling unit, during for meeting sampling trigger condition in frequency converter running status, the frequency converter corresponding with described sample objects of sampling runs variable and the data of sampling is stored into data storage cell.
In frequency converter failure analytic system of the present invention, described sampling trigger condition comprises triggered target, trigger condition, activation levels; When described triggered target is fault triggering, described activation levels is failure code; When described triggered target is frequency converter operation variable, described activation levels is numerical value.
In frequency converter failure analytic system of the present invention, described data sampling unit, when frequency converter running status meets sampling trigger condition, runs variable storage to data storage cell with the corresponding frequency converter meeting the predetermined quantity after trigger condition before respectively frequency converter running status being met sampling trigger condition.
In frequency converter failure analytic system of the present invention, described sampling setting unit is positioned at host computer, and described data sampling unit and data storage cell are positioned at the main control module of frequency converter, and this host computer is connected to main control module by RS-485 universal serial bus; Described main control module also comprises data transmission unit, and this data transmission unit is used for after described data sampling unit is sampled and stored, and the data in data storage cell are transferred to host computer.
In frequency converter failure analytic system of the present invention, described sampling setting unit, data sampling unit and data storage cell are positioned at the main control module of frequency converter, and described sampling setting unit realizes the input of sampling trigger condition and sample objects by the function code of frequency converter; Described data sampling unit closes data storage cell after the frequency converter operation variable of correspondence is sampled and stored.
The present invention also provides a kind of frequency converter failure analytical approach, comprises the following steps:
A () arranges sampling trigger condition and sample objects, described sample objects is one or more operation variablees of frequency converter;
B (), when frequency converter running status meets sampling trigger condition, the frequency converter corresponding with described sample objects of sampling runs variable and the data of sampling is stored into data storage cell.
In frequency converter failure analytical approach of the present invention, described sampling trigger condition comprises triggered target, trigger condition, activation levels; When described triggered target is fault triggering, described activation levels is failure code; When described triggered target is frequency converter operation variable, described activation levels is numerical value.
In frequency converter failure analytical approach of the present invention, in described step (b), when frequency converter running status meets sampling trigger condition, before respectively frequency converter running status being met sampling trigger condition, run variable storage to data storage cell with the corresponding frequency converter meeting the predetermined quantity after trigger condition.
In frequency converter failure analytical approach of the present invention, described method also comprises: after data sampling has also stored, the data in data storage cell are transferred to host computer; Or after data sampling has also stored, close data storage cell.
The present invention also provides a kind of frequency converter, comprise main control module, described main control module comprises data sampling unit and data storage cell, wherein: described data sampling unit, during for meeting sampling trigger condition in frequency converter running status, the data of sampling are also stored into data storage cell by the frequency converter operation variable that sampling is corresponding, and described sampling trigger condition is arranged by host computer or function code is arranged.
Frequency converter failure analytic system of the present invention, method and frequency converter, according to the sampling trigger condition arranged, catch frequency converter failure moment the most effective data, use for fault analysis.Further, above-mentioned sampling trigger condition both can have been opened with host computer and also can directly directly have been opened by function code, just can preserve fault data, improve Resolving probiems efficiency even without producer personnel to scene.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of frequency converter failure analytic system embodiment of the present invention.
Fig. 2 is the schematic diagram that sampling trigger condition arranges interface.
Fig. 3 is the schematic diagram that another sampling trigger condition arranges interface.
Fig. 4 is the schematic diagram of frequency converter failure analytical approach embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, be the schematic diagram of frequency converter failure analytic system embodiment of the present invention, it can be assisted and carry out frequency converter failure analysis.Frequency converter failure analytic system in the present embodiment comprises sampling setting unit 11, data sampling unit 12 and data storage cell 13.Particularly, above-mentioned sampling setting unit 11 can be positioned at host computer (in conjunction with software simulating), data sampling unit 12 and data storage cell 13 then can be positioned at the main control module (in conjunction with software simulating) of frequency converter, and host computer is connected to the main control module of frequency converter by RS-485 universal serial bus.In addition, above-mentioned sampling setting unit 11, data sampling unit 12 and data storage cell 13 all can be positioned at the main control module of frequency converter, or are connected to the separate hardware of main control module of frequency converter.
Sampling setting unit 11 is for arranging sampling trigger condition and sample objects, and wherein sample objects is one or more operation variablees of frequency converter.Above-mentioned sampling trigger condition is the condition that trigger data sampling unit 12 starts, and when namely only having sampling trigger condition to meet, data sampling unit 12 just carries out acquisition and the storage of specific data, otherwise this data sampling unit 12 does not obtain data.
When setting unit 11 of sampling is positioned at host computer, sampling trigger condition can comprise triggered target, trigger condition (can be such as logical operators such as being greater than, being equal to or less than), activation levels etc., and triggered target, trigger condition, activation levels all can be arranged.As shown in Figure 2, for sampling setting unit 11 carries out the interface of sampling trigger condition setting.When triggered target is chosen as fault triggering, trigger condition is selected to equal, and activation levels is configured to a certain failure code (such as " 13 ").In the interface shown in Fig. 2, sampling trigger condition can have one or two, any one or two namely in " trigger A arrange ", " triggering B to arrange ".And sample objects can be configured for different faults, more than 50 data such as electric current (such as torque current, exciting current etc.), voltage (such as busbar voltage etc.), frequency (such as setpoint frequency, synchronizing frequency etc.) and angle specifically can be selected.
In addition, as shown in Figure 3, for sampling setting unit 11 carries out another interface of sampling trigger condition setting.When triggered target is chosen as frequency converter operation variable (such as " busbar voltage "), trigger condition is selected to be greater than (also can be equal to or less than), and activation levels is configured to a certain numerical value (such as " 690V ").
Above-mentioned sampling setting unit 11 also can carry out minimum sampling interval setting (i.e. sample frequency), such as, can be set to carrier cycle and other sampling interval (being defaulted as carrier cycle).
When above-mentioned sampling setting unit 11 is positioned at frequency converter main control module, the function code that sampling setting unit 11 input by frequency converter keyboard realize sampling trigger condition and sample objects input (sample objects can for default value and without the need to inputting).
Data sampling unit 12 is for meeting sampling trigger condition (fault namely set occurs or the frequency converter operation variable of setting reaches particular value) during in frequency converter running status, the frequency converter corresponding with sample objects by the sampling of frequency converter main control module runs variable (i.e. sample objects) and the data of sampling is stored into data storage cell 13.Like this, after frequency converter breaks down, producer personnel or user are by being connected to the computer of internet, the data of the fault moment in data storage cell 13 are sent to producer and analyze.
Particularly, above-mentioned data sampling unit 12 is when frequency converter running status meets sampling trigger condition, respectively the corresponding frequency converter of predetermined quantity forward and backward for fault is run variable storage to data storage cell 13 (data volume before such as fault is 100, and the data volume after fault is 6908).Especially, above-mentioned data storage cell 13 can be RAM or the independently FLASH of frequency converter main control module, even if like this after frequency converter power-off, the sampled data of the fault moment of preservation still can not disappear, thus without the need to retaining scene, does not affect normal production.
When setting unit 11 of sampling is positioned at host computer, above-mentioned frequency converter failure analytic system also can comprise data transmission unit, this data transmission unit is used for sample and after having stored, and the data in data storage cell 13 is turned 485 order wires by serial ports and is transferred to host computer and shows.And when setting unit 11 of sampling is positioned at frequency converter main control module, data sampling unit 12 closes data storage cell 13 after the frequency converter operation variable of correspondence is sampled and stored, thus avoids previously stored data to be wiped free of (such as by the sampled data of follow-up fault moment).
In above-mentioned frequency converter failure analytic system, after sampling trigger condition and sample objects are provided with, data sampling unit 12 and data storage cell 13 similar " black box ", when can occur in the trigger condition arranged, automatic acquisition the named variable of storage failure state, thus help maintainer to carry out frequency converter failure analysis and solve.
As shown in Figure 4, be the schematic flow sheet of frequency converter failure analytical approach embodiment of the present invention, it can be used for auxiliary carrying out frequency converter failure analysis.The method comprises the following steps:
Step S41: arrange sampling trigger condition and sample objects, above-mentioned sample objects is one or more operation variablees of frequency converter.Above-mentioned sampling trigger condition specifically can comprise triggered target, trigger condition, activation levels; When triggered target is fault triggering, activation levels is failure code (as shown in Figure 2); When triggered target is frequency converter operation variable, activation levels is numerical value (as shown in Figure 3).
Step S42: when frequency converter running status meets sampling trigger condition, the frequency converter of sampling corresponding with sample objects runs variable and the data of sampling are stored into data storage cell.Particularly, variable storage is run to data storage cell with the corresponding frequency converter meeting the predetermined quantity after trigger condition before respectively frequency converter running status can being met sampling trigger condition.
In the above-mentioned methods, step S41 is undertaken by the host computer being connected to frequency converter, now after fault moment data sampling has also stored, also the data in data storage cell is transferred to host computer.
In addition, step S41 also realizes by the function code of frequency converter, now after fault moment data sampling has also stored, closes data storage cell.
The present invention also provides a kind of frequency converter, comprise main control module, described main control module comprises data sampling unit and data storage cell, wherein: data sampling unit, during for meeting sampling trigger condition in frequency converter running status, the data of sampling are also stored into data storage cell by the frequency converter operation variable that sampling is corresponding, and sampling trigger condition is arranged by host computer or function code is arranged.
The present invention preserves data before and after fault moment with the form of " black box " and is used for analyzing and positioning failure cause, even if producer personnel also can not obtain valid data at the scene, both issue resolution cycle was shortened, effectively can solve again producer personnel the problem of pending fault such as to keep watch for a long time, save trip expenses.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a frequency converter failure analytic system, it is characterized in that: comprise sampling setting unit, data sampling unit and data storage cell, wherein: described sampling setting unit, for arranging sampling trigger condition and sample objects, described sample objects is one or more operation variablees of frequency converter; Described data sampling unit, during for meeting sampling trigger condition in frequency converter running status, the frequency converter corresponding with described sample objects of sampling runs variable and the data of sampling is stored into data storage cell.
2. frequency converter failure analytic system according to claim 1, is characterized in that: described sampling trigger condition comprises triggered target, trigger condition, activation levels; When described triggered target is fault triggering, described activation levels is failure code; When described triggered target is frequency converter operation variable, described activation levels is numerical value.
3. frequency converter failure analytic system according to claim 1, it is characterized in that: described data sampling unit, when frequency converter running status meets sampling trigger condition, runs variable storage to data storage cell with the corresponding frequency converter meeting the predetermined quantity after trigger condition before respectively frequency converter running status being met sampling trigger condition.
4. frequency converter failure analytic system according to claim 1, it is characterized in that: described sampling setting unit is positioned at host computer, described data sampling unit and data storage cell are positioned at the main control module of frequency converter, and this host computer is connected to main control module by RS-485 universal serial bus; Described main control module also comprises data transmission unit, and this data transmission unit is used for after described data sampling unit is sampled and stored, and the data in data storage cell are transferred to host computer.
5. frequency converter failure analytic system according to claim 1, it is characterized in that: described sampling setting unit, data sampling unit and data storage cell are positioned at the main control module of frequency converter, and described sampling setting unit realizes the input of sampling trigger condition and sample objects by the function code of frequency converter; Described data sampling unit closes data storage cell after the frequency converter operation variable of correspondence is sampled and stored.
6. a frequency converter failure analytical approach, is characterized in that: comprise the following steps:
A () arranges sampling trigger condition and sample objects, described sample objects is one or more operation variablees of frequency converter;
B (), when frequency converter running status meets sampling trigger condition, the frequency converter corresponding with described sample objects of sampling runs variable and the data of sampling is stored into data storage cell.
7. frequency converter failure analytical approach according to claim 6, is characterized in that: described sampling trigger condition comprises triggered target, trigger condition, activation levels; When described triggered target is fault triggering, described activation levels is failure code; When described triggered target is frequency converter operation variable, described activation levels is numerical value.
8. frequency converter failure analytical approach according to claim 6, it is characterized in that: in described step (b), when frequency converter running status meets sampling trigger condition, before respectively frequency converter running status being met sampling trigger condition, run variable storage to data storage cell with the corresponding frequency converter meeting the predetermined quantity after trigger condition.
9. frequency converter failure analytical approach according to claim 6, is characterized in that: described method also comprises: after data sampling has also stored, the data in data storage cell are transferred to host computer; Or after data sampling has also stored, close data storage cell.
10. a frequency converter, comprise main control module, it is characterized in that: described main control module comprises data sampling unit and data storage cell, wherein: described data sampling unit, during for meeting sampling trigger condition in frequency converter running status, the data of sampling are also stored into data storage cell by the frequency converter operation variable that sampling is corresponding, and described sampling trigger condition is arranged by host computer or function code is arranged.
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| CN107422261A (en) * | 2017-07-28 | 2017-12-01 | 广东美芝制冷设备有限公司 | The processing method and processing device of motor operation data |
| CN108614167A (en) * | 2016-12-09 | 2018-10-02 | 株洲中车时代电气股份有限公司 | A kind of (PCC) power failure logging diagnostic system and method |
| CN112594129A (en) * | 2020-12-17 | 2021-04-02 | 华能辽宁清洁能源有限责任公司 | Novel wind generating set frequency converter simulation maintenance method |
| CN113406948A (en) * | 2021-06-21 | 2021-09-17 | 合肥美的暖通设备有限公司 | Fault data processing method and device, frequency converter, air conditioning equipment and storage medium |
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Cited By (8)
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| CN107422261A (en) * | 2017-07-28 | 2017-12-01 | 广东美芝制冷设备有限公司 | The processing method and processing device of motor operation data |
| CN112594129A (en) * | 2020-12-17 | 2021-04-02 | 华能辽宁清洁能源有限责任公司 | Novel wind generating set frequency converter simulation maintenance method |
| CN112594129B (en) * | 2020-12-17 | 2024-04-02 | 华能辽宁清洁能源有限责任公司 | Novel wind generating set frequency converter simulation maintenance method |
| CN113406948A (en) * | 2021-06-21 | 2021-09-17 | 合肥美的暖通设备有限公司 | Fault data processing method and device, frequency converter, air conditioning equipment and storage medium |
| WO2022267436A1 (en) * | 2021-06-21 | 2022-12-29 | 合肥美的暖通设备有限公司 | Fault data processing method and apparatus, frequency converter, air conditioning device, and storage medium |
| CN113406948B (en) * | 2021-06-21 | 2023-02-03 | 合肥美的暖通设备有限公司 | Fault data processing method and device, frequency converter, air conditioning equipment and storage medium |
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Application publication date: 20151028 |