CN110159521A - A kind of judgment method that compressor overcurrent reports an error and control device - Google Patents
A kind of judgment method that compressor overcurrent reports an error and control device Download PDFInfo
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- CN110159521A CN110159521A CN201810142643.8A CN201810142643A CN110159521A CN 110159521 A CN110159521 A CN 110159521A CN 201810142643 A CN201810142643 A CN 201810142643A CN 110159521 A CN110159521 A CN 110159521A
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- Prior art keywords
- compressor
- predetermined time
- overcurrent fault
- overcurrent
- fault
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of judgment method that compressor overcurrent reports an error and control device, the judgment method include the following steps: 10) to prestore the first predetermined time and the second predetermined time in compressor operational process, and the first predetermined time is less than the second predetermined time；20) start compressor；30) judge whether compressor occurs overcurrent fault, if so, executing step 40)；40) close compressor, recording compressed machine judge the relationship of time interval Yu the first predetermined time and the second predetermined time from generation overcurrent fault elapsed time interval is started to；41) time interval determines that the first overcurrent fault occurs for compressor less than the first predetermined time；42) time interval determines that the second overcurrent fault occurs for compressor between the first predetermined time and the second predetermined time.The judgment method accuracy that the overcurrent reports an error is higher, can reduce because overcurrent fault type judges the risk for causing system to be damaged or influence system normal operation by accident.
Description
Technical field
The present invention relates to technical field of engineering machinery, in particular to the control system of a kind of crane and its setting-up elevator rope closing
System.
Background technique
The start and stop of compressor and running frequency are the key that whole system efficient operation, existing air-conditioning system in air-conditioning system
In compressor mostly use permanent-magnet synchronous brushless motor, due to permanent magnet therein more than a constant current exist subtract magnetic show
The risk of elephant therefore, in existing compressor of air conditioner frequency-variable controller to have that hardware subtracts magnetic protection or software subtracts magnetic protection more.If pressure
The failures such as phase current exception occur for contracting machine, need to stop compressor, and the outer LED lamp flashing of control room in time, quote corresponding failure, mention
The tester that wakes up checks the system failure, to achieve the purpose that protect compressor and entire compressor control system, also allows test
The entire air-conditioning system of the more efficient control of personnel.
In existing domestic air conditioning control logic, the judgment mode to report an error to compressor overcurrent is relatively simple, if system is examined
It measures compressor and occurs certain and report an error, then compressor hard stop, outdoor LED lamp flashing reports corresponding failure, weight after a period of time
New starting, failure reports an error reach certain number after compressor do not restart.
But the compressor overcurrent reports an error, control method is relatively simple, no matter which kind of reason to cause overcurrent fault because of,
By control compressor shutdown, the mode restarted after a period of time is handled, and may in compressor actual moving process
Summary of the invention
In order to solve the above technical problems, it is an object of the present invention to provide a kind of judgment method that compressor overcurrent reports an error,
The judgment method includes the following steps:
10) the first predetermined time and the second predetermined time in compressor operational process, and the described first pre- timing are prestored
Between be less than second predetermined time；
20) start compressor；
30) judge whether compressor occurs overcurrent fault, if so, executing step 40)；
40) close compressor, recording compressed machine occur overcurrent fault elapsed time interval from starting to, and judge
The relationship of the time interval and first predetermined time and second predetermined time；
If 41) time interval is less than first predetermined time, determine that the first overcurrent fault occurs for compressor；
If 42) time interval determines to press between first predetermined time and second predetermined time
Second overcurrent fault occurs for contracting machine.
In the judgment method that compressor overcurrent in the present invention reports an error, when overcurrent fault occurs in compressor, not
Using compressor shutdown is directly controlled in the prior art, the mode restarted after a period of time is handled, but first determines whether to cause this
The reason of overcurrent fault, to take corresponding processing mode according to different types of overcurrent fault.Therefore, with existing skill
Art is compared, and the judgment method accuracy that the overcurrent in the present invention reports an error is higher, can reduce because overcurrent fault type judges
Mistake and cause system to be damaged, or influence system operate normally risk, to improve the work of compressor control system
Make efficiency.
Optionally, in step 10), also prestoring allows to occur the of first overcurrent fault in compressor operational process
One pre-determined number N1, and set n1=0, wherein n1For the accumulative Fisrt fault that first overcurrent fault occurs of compressor
Number；In step 41), n1=n1+ 1, and following step is executed after step 41):
If 411) n1≥N1, then first overcurrent fault is shown, and compressor is forbidden to be again started up；
If 412) n1< N1, it is back to step 30).
Optionally, in step 10), also prestoring allows to occur the of second overcurrent fault in compressor operational process
Two pre-determined number N2, and set n2=0, wherein n2For accumulative the second failure that second overcurrent fault occurs time of compressor
Number；In step 42), n2=n2+ 1, and following step is executed after step 42):
If 421) n2≥N2, then second overcurrent fault is shown, and compressor is forbidden to be again started up；
If 422) n2< N2, it is back to step 30).
Optionally, return step 30) after, the reset itself after setting time.
Optionally, in step 40), further includes:
If 43) time interval is greater than second predetermined time, the reset itself after setting time, and returns
It is back to step 30).
Optionally, first predetermined time is 30 seconds, and second predetermined time is 20 points.
In addition, the present invention also provides a kind of control devices that compressor overcurrent reports an error, comprising:
Timer, for recording compressed machine from start to occur overcurrent fault elapsed time interval；
Control unit for judging whether compressor occurs overcurrent fault, and prestores in compressor operational process
First predetermined time and the second predetermined time；
Judging part, for the pass according to the time interval and first predetermined time and second predetermined time
System judges that compressor is in the first overcurrent fault or the second overcurrent fault.
It optionally, further include the first counter, first counter is for the accumulative generation described first of recording compressed machine
The Fisrt fault frequency n of overcurrent fault1；
The control unit, which also prestores, allows to occur the first of first overcurrent fault in compressor operational process
Pre-determined number N1, and can be according to the Fisrt fault frequency n1With the first pre-determined number N1Relationship control compressor
Working condition.
It optionally, further comprise the second counter, second counter is for described in the accumulative generation of recording compressed machine
Second number of stoppages n of the second overcurrent fault2；
The control unit, which also prestores, allows to occur the second of second overcurrent fault in compressor operational process
Pre-determined number N2, and can be according to second number of stoppages n2With the second pre-determined number N2Relationship control compressor
Working condition.
Detailed description of the invention
Fig. 1 is process of the judgment method that reports an error of compressor overcurrent provided by the present invention in the first specific embodiment
Figure；
Fig. 2 is process of the judgment method that reports an error of compressor overcurrent provided by the present invention in second of specific embodiment
Figure.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical solution of the present invention
Applying example, the present invention is described in further detail.
Please refer to attached drawing 1-2, wherein Fig. 1 is the judgment method that reports an error of compressor overcurrent provided by the present invention first
Flow chart in kind specific embodiment；Fig. 2 is that the judgment method that compressor overcurrent provided by the present invention reports an error has at second
Flow chart in body embodiment.
In a specific embodiment, the present invention provides a kind of judgment method that compressor overcurrent reports an error, such as Fig. 1 institute
Show, which includes the following steps:
S10: the first predetermined time and the second predetermined time in compressor operational process, and first predetermined time are prestored
Less than the second predetermined time；
S20: starting compressor；
S30: judging whether compressor occurs overcurrent fault, if so, executing step S40；
S40: close compressor, recording compressed machine occur overcurrent fault elapsed time interval from starting to, and sentence
The relationship broken between the time interval and the first predetermined time and the second predetermined time；
S41: if the time interval less than the first predetermined time, determines that the first overcurrent fault occurs for compressor；
S42: if time interval between the first predetermined time and the second predetermined time, determines that compressor occurs second
Overcurrent fault.
In the present invention, overcurrent fault that compressor occurs within the first predetermined time is the first overcurrent fault, first
Overcurrent fault is as caused by parts damages one or more in compressor control system, and such overcurrent fault is being compressed
It will occur (in the first predetermined time) in the machine initial start stage short time.The overcurrent that compressor occurs within second scheduled time
Failure is the second overcurrent fault, and the second overcurrent fault is that the failure as caused by system malfunction reports an error, such as noise etc.
Factor causes compressor current excessively high.Under normal conditions, system malfunction (second pre- timing after compressor runs a period of time
Between) just occur.
Meanwhile the present invention also provides a kind of control device that compressor overcurrent reports an error, components described below is specifically included: timing
Device, for recording compressed machine from start to occur overcurrent fault elapsed time interval；Control unit, for judging compression
Whether machine occurs overcurrent fault, and prestores the first predetermined time in compressor operational process and the second predetermined time,
In, the meaning of the first predetermined time and the second predetermined time are as described above；Judging part, for pre- with first according to time interval
It fixes time and judges that compressor is in the first overcurrent fault or the second overcurrent fault with the relationship of the second predetermined time.
In the judgment method that compressor overcurrent in the present invention reports an error, when overcurrent fault occurs in compressor, not
Using compressor shutdown is directly controlled in the prior art, the mode restarted after a period of time is handled, but first determines whether to cause this
The reason of overcurrent fault, to take corresponding processing mode according to different types of overcurrent fault.Therefore, with existing skill
Art is compared, and the judgment method accuracy that the overcurrent in the present invention reports an error is higher, can reduce because overcurrent fault type judges
Mistake and cause system to be damaged, or influence system operate normally risk, to improve the work of compressor control system
Make efficiency.
Further, as shown in Fig. 2, above-mentioned judgment method specifically include the following steps:
S110: the first predetermined time in compressor operational process, the second predetermined time are prestored, allows generation first excessively electric
Flow the first pre-determined number N of failure1With the second pre-determined number N for allowing to occur the second overcurrent fault2, wherein this is first predetermined
Time sets n less than the second predetermined time1=0, n2=0, n1Occur the first of the first overcurrent fault for compressor is accumulative
The number of stoppages, n2For accumulative second number of stoppages that the second overcurrent fault occurs of compressor；
S120: starting compressor；
S130: judging whether compressor occurs overcurrent fault, if so, executing step S140；
S140: close compressor, recording compressed machine from start to occur overcurrent fault when elapsed time interval, and
Judge the relationship between the time interval and the first predetermined time and the second predetermined time；
S141: if the time interval less than the first predetermined time, determines that the first overcurrent fault occurs for compressor；
S142: if time interval between the first predetermined time and the second predetermined time, determines that compressor occurs the
Two overcurrent faults.
Further, after step S141, following step is carried out:
S411:n1=n1+ 1, if n1≥N1, then the first overcurrent fault is shown, and compressor is forbidden to be again started up；
S412: if n1< N1, it is back to step S130.
It correspondingly, further include the first counter in the control device that compressor overcurrent reports an error, which is used for
The accumulative Fisrt fault frequency n that the first overcurrent fault occurs of recording compressed machine1.When the Fisrt fault frequency n1Not up to compress
Allow to occur the first pre-determined number N of the first overcurrent fault in machine operational process1When, it is back to step S130, at this point, compression
Machine system still is able to run, to avoid influencing the normal operation of system because failure is judged by accident.When Fisrt fault frequency n1It reaches
To or more than allowing to occur the first pre-determined number N of the first overcurrent fault in compressor operational process1When, it is excessively electric to issue first
Stream failure reports an error, such as LED light flashing etc., and compressor is forbidden to be again started up, to avoid causing system that bigger damage occurs.
Further, after step S142, following step is carried out:
S421:n2=n2+ 1, if n2≥N2, then the second overcurrent fault is shown, and compressor is forbidden to be again started up；
S422: if n2< N2, it is back to step S130.
It correspondingly, further comprise the second counter in the control device which reports an error, second counting
Device is for accumulative the second number of stoppages n that the second overcurrent fault occurs of recording compressed machine2.As second number of stoppages n2It does not reach
Allow to occur the second pre-determined number N of the second overcurrent fault into compressor operational process2When, it is back to step S130, this
When, compressor can still be run, to avoid influencing the normal operation of system because fault type is judged by accident.When second number of stoppages
n2Meet or exceed the second pre-determined number N for allowing that the second overcurrent fault occurs in compressor operational process2When, issue second
Overcurrent fault reports an error, and compressor is forbidden to be again started up, to play the role of protection system.
Specifically, in above-mentioned steps S412 and step S422, after being back to step S130, pressure is restarted after setting time
Contracting machine, to guarantee that system can operate normally.Wherein, which can be 3 minutes or other times arbitrarily set.
Further include following step in addition to including step S41 and S42 in step S40 in the above various embodiments:
S43: if time interval is greater than the second predetermined time, the reset itself after setting time, and it is back to step
Rapid S30.
When time interval was greater than for the second predetermined time, there is no the case where judging by accident of breaking down, and therefore, overcurrent occur
Failure and when close compressor, compressor is again started up after setting time, the setting time concretely 3 minutes, or
It can also be set as needed.
Specifically, in the above various embodiments, the first predetermined time was 30 seconds, and the second predetermined time was 20 points.
It is appreciated that the specific value of the first predetermined time and the second predetermined time can be according to pressures in the various embodiments described above
The parameter and operating condition of contracting machine are arbitrarily arranged.Specifically, the established standards of first predetermined time be compressor control system in because
Parts damages and the time that overcurrent fault occurs, the established standards of the second predetermined time are component hair in compressor control system
The time of raw malfunction.
A kind of judgment method that compressor overcurrent reports an error provided by the present invention and control device are carried out above
It is discussed in detail.Used herein a specific example illustrates the principle and implementation of the invention, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the common skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for art personnel, these change
It is also fallen within the protection scope of the claims of the present invention into modification.
Claims (9)
1. a kind of judgment method that compressor overcurrent reports an error, which is characterized in that the judgment method includes the following steps:
10) the first predetermined time and the second predetermined time in compressor operational process are prestored, and first predetermined time is small
In second predetermined time；
20) start compressor；
30) judge whether compressor occurs overcurrent fault, if so, executing step 40)；
40) close compressor, recording compressed machine from start to occur overcurrent fault elapsed time interval, and judge described in
The relationship of time interval and first predetermined time and second predetermined time；
If 41) time interval is less than first predetermined time, determine that the first overcurrent fault occurs for compressor；
If 42) time interval determines compressor between first predetermined time and second predetermined time
The second overcurrent fault occurs.
2. judgment method according to claim 1, which is characterized in that in step 10), also prestore in compressor operational process
Allow to occur the first pre-determined number N of first overcurrent fault1, and set n1=0, wherein n1Occur for compressor is accumulative
The Fisrt fault number of first overcurrent fault；In step 41), n1=n1+ 1, and following step is executed after step 41):
If 411) n1≥N1, then first overcurrent fault is shown, and compressor is forbidden to be again started up；
If 412) n1< N1, it is back to step 30).
3. judgment method according to claim 2, which is characterized in that in step 10), also prestore in compressor operational process
Allow to occur the second pre-determined number N of second overcurrent fault2, and set n2=0, wherein n2Occur for compressor is accumulative
Second number of stoppages of second overcurrent fault；In step 42), n2=n2+ 1, and following step is executed after step 42):
If 421) n2≥N2, then second overcurrent fault is shown, and compressor is forbidden to be again started up；
If 422) n2< N2, it is back to step 30).
4. judgment method according to claim 3, which is characterized in that return step 30) after, restart after setting time
Compressor.
5. judgment method described in any one of -4 according to claim 1, which is characterized in that in step 40), further includes:
If 43) time interval is greater than second predetermined time, the reset itself after setting time, and is back to
Step 30).
6. judgment method described in any one of -4 according to claim 1, which is characterized in that first predetermined time is 30
Second, second predetermined time is 20 points.
7. a kind of control device that compressor overcurrent reports an error characterized by comprising
Timer, for recording compressed machine from start to occur overcurrent fault elapsed time interval；
Control unit, for judging whether compressor occurs overcurrent fault, and prestore in compressor operational process first
Predetermined time and the second predetermined time；
Judging part, for being sentenced according to the time interval and the relationship of first predetermined time and second predetermined time
Disconnected compressor is in the first overcurrent fault or the second overcurrent fault.
8. control device according to claim 7, which is characterized in that it further include the first counter, first counter
For the accumulative Fisrt fault frequency n that first overcurrent fault occurs of recording compressed machine1；
The control unit, which also prestores, allows to occur the first predetermined of first overcurrent fault in compressor operational process
Times N1, and can be according to the Fisrt fault frequency n1With the first pre-determined number N1Relationship control compressor work
State.
9. control device according to claim 8, which is characterized in that it further comprise the second counter, second meter
Number device is for accumulative the second number of stoppages n that second overcurrent fault occurs of recording compressed machine2；
The control unit, which also prestores, allows to occur the second predetermined of second overcurrent fault in compressor operational process
Times N2, and can be according to second number of stoppages n2With the second pre-determined number N2Relationship control compressor work
State.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810142643.8A CN110159521B (en) | 2018-02-11 | 2018-02-11 | Judging method and control device for over-current error reporting of compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810142643.8A CN110159521B (en) | 2018-02-11 | 2018-02-11 | Judging method and control device for over-current error reporting of compressor |
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| CN110159521B CN110159521B (en) | 2022-07-01 |
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|---|---|
| CN110159521B (en) | 2022-07-01 |
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