CN107202028A - A kind of turbocharger centrifugal compressor surge recognition methods - Google Patents
A kind of turbocharger centrifugal compressor surge recognition methods Download PDFInfo
- Publication number
- CN107202028A CN107202028A CN201710405073.2A CN201710405073A CN107202028A CN 107202028 A CN107202028 A CN 107202028A CN 201710405073 A CN201710405073 A CN 201710405073A CN 107202028 A CN107202028 A CN 107202028A
- Authority
- CN
- China
- Prior art keywords
- surge
- signal
- mrow
- window length
- time window
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A kind of turbocharger centrifugal compressor surge recognition methods disclosed by the invention, the method for being related to based on pressure oscillation quantity in timing statisticses window to recognize booster centrifugal compressor surge belongs to fluid machines status monitoring and diagnostic techniques field.The present invention comprises the following steps：Step 1：Surge signal acquisition；Step 2：Design matched filter filters out the noise being added on surge signal, determines traveling time window length Δ T；Step 3：To passing through signal fluctuation quantity in the filtered signal of matched filter, statistics traveling time window length Δ T；Step 4：According to signal fluctuation amount Δ x in the traveling time window length Δ T counted, decision threshold Δ X0 is determined；Step 5：Real time discriminating surge.The present invention provides a kind of for surge automatic identifying method in supercharger air compressor performance test, can avoid causing the problem of stall margin measurement is inconsistent by artificial judgment, have the advantages that amount of calculation is small, the degree of accuracy is high, be easily achieved.
Description
Technical field
The invention belongs to fluid machines status monitoring and diagnostic techniques field, and in particular to one kind is based on timing statisticses
The method that compressor out temperature or pressure signal fluctuate quantity to recognize booster centrifugal compressor surge in window.
Background technology
Supercharging technology is to improve a kind of effective measures of engine performance, and the power that can significantly increase engine is close
Degree, improves its economy, and be conducive to the improvement of discharge performance.It is big due to engine operating condition in engine working process
Range, when compressor flow reduces to a certain extent, surge phenomenon can occur for compressor, can now go out in pressure charging system
Show cycle low frequency significantly gas oscillation phenomenon so that booster can not normal work.Meanwhile, vibration caused by surge may
The bearing and sealing system of booster are destroyed, so as to influence the normal work of engine.
To ensure that booster can reliably be run on engine with supercharger, before booster and Engine Matching, it is necessary to
Turbocharger air compressor performance curve is measured by experiment, that is, the MAP of compressor schemes.Fig. 1 is certain type turbocharger
Capability of Compressor curve map.As shown in figure 1, the Capability of Compressor curve post that test is obtained shows compressor surge line, work as pressure
When entering surge area surge phenomenon will occur for mechanism of qi running operating point.In turbocharger and Engine Matching, to ensure hair
Motivation is all contained in compressor accidental conditions point with the running operating point that matches of booster, is generally calmed the anger in test
Certain nargin is left on the basis of machine surge line, an anti-surge line delimited, under all operating conditions of engine with supercharger, supercharging
The running operating point of device compressor is all in anti-surge line, to ensure the reliability service of engine with supercharger.Surge line is booster
One line of demarcation of compressor accidental conditions and abnormal operation condition, its accurate measurement is high to ensureing booster safety
Effect operation has great importance.If measurement is inaccurate so that it is overly conservative that anti-surge curve is set, and will reduce compressor
Normal operating zone, particularly, compressor surge line is in compressor high pressure ratio, high efficiency region so that Capability of Compressor without
Method gives full play to；On the other hand, if the anti-surge curve set is easily caused close to surge line in the operation of engine with supercharger
The surge of compressor, so as to influence the performance of engine with supercharger.
Turbocharger air compressor performance test is more by being accomplished manually, and tester completes pair according to experience
The judgement of compressor surge, the foundation commonly used to judgement includes compressor inlet and outlet pressure, and the fluctuation of temperature, booster is sent
Sound change.Because everyone judges that the standard of surge is different, it eventually influences stall margin in test result
It is determined that, so that the stall margin that inaccurate or same booster different tests personnel for causing anti-surge line to set measure is deposited
In difference.
The content of the invention
To solve in turbocharger air compressor performance test, surge causes stall margin to measure by artificial judgment
A kind of inconsistent the problem of, turbocharger centrifugal compressor surge recognition methods disclosed by the invention, the technology to be solved is asked
Topic, which is to provide one kind, is used for surge automatic identifying method in supercharger air compressor performance test, can avoid by artificial judgment
And cause the problem of stall margin measurement is inconsistent, have the advantages that amount of calculation is small, the degree of accuracy is high, be easily achieved.
Technical scheme implementation method is as follows.
A kind of turbocharger centrifugal compressor surge recognition methods disclosed by the invention, comprises the following steps：
Step 1：Surge signal acquisition；
Import and export or import and export in compressor and installed on pipeline for dynamic temperature or dynamic pressure measurement sensor, collection
It is installed to turbocharger air compressor and imports and exports or import and export the dynamic pressure or dynamic temperature signal on pipeline.
Step 2：Design matched filter filters out the noise being added on surge signal, determines traveling time window length Δ T；
Turbocharger air compressor surge signal waveform according to collecting obtains filter coefficient vector, that is, completes to filter out
The matched filter design for the noise being added on surge signal；According to filter coefficient vector dimension and the sample frequency of setting
Determine traveling time window length Δ T.
Step 3：To by the filtered signal of matched filter in step 2, counting signal in traveling time window length Δ T
Fluctuate quantity.
Handle, again carrying out first difference, Sign functions successively by the filtered signal of matched filter in step 2
All data points in traveling time window length Δ T after calculus of differences again are carried out statistical disposition, counted by calculus of differences
Signal fluctuation amount Δ x in traveling time window length Δ T.
Step 4：Signal fluctuation amount Δ x in the traveling time window length Δ T counted according to step 3, determines decision threshold
It is worth Δ X0；
Step 5：Real time discriminating surge；
Dynamic temperature or dynamic pressure measurement sensor signal that real-time acquisition step 1 is installed, are designed using step 2 and matched
Wave filter filters out the noise being added on surge signal, and counts signal fluctuation number in traveling time window length Δ T according to step 3
Amount, and step 3 is counted into the decision threshold Δ X that signal fluctuation amount Δ x is determined with step 4 in traveling time window length Δ T0It is real
When compare, upon displacement between in window length Δ T signal fluctuation amount Δ x be less than decision threshold Δ X0When, judge occur surge, i.e.,
Realize real time discriminating surge.
Also step 6：Described a kind of turbocharger centrifugal compressor surge recognition methods, in turbocharger air compressor
Performance test field and turbocharger air compressor surge ONLINE RECOGNITION field have practical value and application prospect.For example：Should
For the on-line monitoring of turbocharger air compressor surge in turbocharged engine, taken in time when surge occurs for compressor
Measure, to ensure the reliability of operation of engine with supercharger.
The sample frequency that the step 1 collection compressor imports and exports signal is preferably 80~100Hz.
The step 2 design matched filter filters out the noise being added on surge signal, determines traveling time window length
Δ T, implements step as follows：
Step 2.1：Design matched filter filters out the noise being added on surge signal.
The compressor surge signal measured according to step 1, intercepts a complete surge Wave data, defines one completely
Surge Wave data by m groups of samples into then constituting the signal phasor of m dimension
Wherein：S (0), s (1) ..., s (m-1) is respectively the m sampled point that a complete surge signal waveform is included
Value.
Choose matched filter coefficient vectorCoefficient k is ratio
Coefficient, proportionality coefficient k chooses according to the big freedom in minor affairs of actual measurement surge signal, i.e. complete design matched filter, and utilizes matching
Wave filter filters out the noise being added on surge signal.
Step 2.2：Traveling time window length Δ T is determined according to the sample frequency of filter coefficient vector dimension and setting,
Traveling time window length Δ T is determined according to equation below：
Wherein, f is signal sampling frequencies, the sampled point number that m is included by a complete surge Wave data.
Calculus of differences in the step 3, again the calculus of differences method of calculus of differences are defined as follows：
It is x (k) to define values of the discrete signal x at the k moment, and the value at k+1 moment is x (k+1), its first-order difference signal y's
Computational methods are：Y (k)=x (k+1)-x (k).
Described step 4 determines decision threshold Δ X0It is preferably as follows method realization：
Surge occurred before the moment, took the average value of undulating value in m-1 time window lengthAfter pumping point, m-1 is taken
Fluctuation number average in individual time window lengthGiven threshold takes both average values, that is, determines decision threshold Δ X0。
Beneficial effect：
1st, stall margin is judged in turbocharger air compressor performance test, surge is existed by artificial judgment
A kind of inconsistent the problem of, turbocharger centrifugal compressor surge recognition methods disclosed by the invention can substitute turbine increasing
Manually sentence in the test of depressor Capability of Compressor and breathe heavily, it is ensured that the uniformity of experimental test result.
2nd, statistical fluctuation quantity in prior art, generally seeks extreme value, it is necessary to be circulated and sentenced using ranking method, bubbling method
Disconnected computing or use frequency spectrum analysis method carries out FFT computings, and a kind of turbocharger centrifugal compressor disclosed by the invention is breathed heavily
Shake recognition methods, by simply carrying out first difference, the again processing of Sign functions, calculus of differences, fluctuation number can be counted
Amount, therefore, amount of calculation is small.
3rd, a kind of turbocharger centrifugal compressor surge recognition methods disclosed by the invention, is filtered out folded by matched filtering
The noise on surge signal is added to, substantially, therefore, the degree of accuracy is high by surge signal and normal signal fluctuation quantitative comparison.
4th, a kind of turbocharger centrifugal compressor surge recognition methods disclosed by the invention, in turbocharger air compressor
Performance test field has larger practical value and application prospect, for example：Turbine in turbocharged engine is can be applied to increase
The on-line monitoring of depressor compressor surge, takes measures, to ensure the fortune of engine with supercharger in time when surge occurs for compressor
Capable reliability.
Brief description of the drawings
Fig. 1 is certain type turbocharger air compressor performance curve in background technology.
Fig. 2 is surge recognizer flow chart disclosed by the invention；
Fig. 3 is sensor mounting location schematic diagram；
Wherein：1 is turbocharger air compressor, and 2 be turbocharger turbine, and 3 be turbocharger air compressor outlet, 4
It is the installation site of blower outlet measurement sensor first for turbocharger air compressor outlet connecting pipe road, 5,6 be compressor
The installation site of measurement sensor second is exported, 7 be turbocharger air compressor import, and 8 be that turbocharger air compressor import connects
Adapter road, 9 be the installation site of compressor inlet measurement sensor first, and 10 be the installation position of compressor inlet measurement sensor second
Put.
Fig. 4 is turbocharger surge signal graph；
Fig. 5 is turbocharger surge signal waveforms；
Fig. 6 is signal fluctuation quantity statistics result after the matched filtering of turbocharger surge signal and second differnce, wherein：Figure
6 (a) is result after the matched filtering of turbocharger surge signal, and Fig. 6 (b) is signal fluctuation quantity statistics result after second differnce；
Fig. 7 is that surge differentiates result figure.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and specific implementation method
Present invention is described in further detail.
Embodiment 1：
A kind of turbocharger centrifugal compressor surge recognition methods, flow chart disclosed in the present embodiment are as shown in Fig. 2 bag
Include following steps：
Step 1：Surge signal acquisition；
Import and export or import and export on pipeline in JP90 turbocharger air compressors and dynamic pressure transducer is installed, for measuring
Compressor passes in and out the pressure of gas；As shown in figure 3, dynamic pressure transducer installation site preferably following four kinds of installation sites：
The first mounting means：It is installed to the compressor inlet measurement sensor on turbocharger air compressor inlet connecting branch road 8
One installation site；Second of mounting means：It is installed to the compressor inlet measurement sensor in turbocharger air compressor import 7
Second installation site 10；The third mounting means：Compressor on turbocharger air compressor outlet connecting pipe road 4 is installed to go out
The first installation site of mouth measurement sensor 5；4th kind of mounting means：It is installed to compressor in turbocharger air compressor outlet 3
Export the second installation site of measurement sensor 6.This example uses the third mounting means, and mounting distance L2 is less than blower outlet
Dynamic pressure transducer is arranged on blower outlet pipeline to go out away from compressor by caliber d2=75mm 3 times of 225mm, this example
Mouth distance is 200mm.
Dynamic pressure transducer data are gathered, sample frequency f=100Hz, operating operation test bench control system regulation turbine increases
Depressor rotating speed to 30000r/min, regulation supercharger air compressor running status obtains accidental conditions and breathed heavily to surging condition
Compressor outlet pressure signal under operating mode of shaking, JP90 turbocharger nominal situation and surging condition signal graph are as shown in Figure 4.Figure
In 4, at 4 seconds, turbocharger air compressor enters surging condition by nominal situation.
Step 2：Design matched filter filters out the noise being added on surge signal, determines traveling time window length Δ T.
Step 2.1：Design matched filter filters out the noise being added on surge signal.
In the surging condition signal that step 1 is obtained, one of them complete surge waveform, institute are intercepted
Surge waveform is intercepted as shown in figure 5, being made up of 11 data points Filter coefficient k=1 is taken, matched filter coefficient vector is obtained Will step
The nominal situation and surging condition signal obtained in rapid 1, after the matched filter filtering that step 2 is designed, filters out to be added to and breathes heavily
After the noise shaken on signal, filtering shown in result such as Fig. 6 (a).
Step 2.2：Traveling time window length Δ T is determined according to the sample frequency of filter coefficient vector dimension and setting.
The traveling time window length Δ T calculation formula provided according to step 2.2,
M=11, f=100Hz, calculating obtained traveling time window degree length span for 0.22~0.33 second, chose Δ
T=0.3 seconds.
Step 3：To by the filtered signal of matched filter in step 2, counting signal in traveling time window length Δ T
Fluctuate quantity.
After matched filter filtering of the dynamic pressure transducer signal that step 2 is collected through design, a jump is carried out
Partite transport is calculated, and after Sign functional operation, calculus of differences is carried out again, after operation result is taken absolute value in 0.3 second mobile
Between sum in window, result of calculation such as Fig. 6 (b) is shown.
According to Fig. 6 (b), surge is since at 4 seconds, and surge waveform signal includes 11 sampled points, i.e. m=11, surge hair
Before the raw moment, m-1 time window Δ T length, i.e., in 3 seconds ((11-1) * 0.3=3 seconds), fluctuation number average is 126, i.e.,Surge occurred after the moment, m-1 time window Δ T length, i.e., in 3 seconds ((11-1) * 0.3=3 seconds), fluctuation number
It is 36 to measure average value, i.e.,
Step 4：Determine decision threshold Δ X0；
According to surge threshold calculations formula,
Step 3 is obtainedSubstitute into formula and obtain decision threshold Δ X0=81.
Step 5：Real time discriminating surge；
The dynamic pressure measurement sensor signal that real-time acquisition step 1 is installed, is filtered out using step 2 design matched filter
The noise being added on surge signal, and signal fluctuation quantity in traveling time window length Δ T is counted according to step 3, and will step
The decision threshold Δ X that signal fluctuation amount Δ x is determined with step 4 in rapid 3 statistics traveling time window length Δ T0Compare in real time, when
Signal fluctuation amount Δ x is less than decision threshold Δ X in traveling time window length Δ T0When=81, judge occur surge, that is, realize
Real time discriminating surge.Surge differentiates that result is as shown in Figure 7.
Also step 6：Described turbocharger centrifugal compressor surge recognition methods, applied in turbocharged engine
The ONLINE RECOGNITION of turbocharger air compressor surge, can judge the generation of surge after compressor occurs 0.5 second.
While characterized as a kind of embodiment of present invention, but those skilled in the art it is contemplated that
Go out the modifications and variations of some embodiments for not changing the substantive content of the invention, all use equivalent substitutions or equivalent transformation are formed
Technical scheme, all should fall in the protection domain of application claims.It is understood, therefore, that appended claims are intended to
Cover in itself with these modifications and variations of essentiality content identical of the present invention.
Claims (6)
1. a kind of turbocharger centrifugal compressor surge recognition methods, it is characterised in that：Comprise the following steps,
Step 1：Surge signal acquisition；
Import and export or import and export in compressor and installed on pipeline for dynamic temperature or dynamic pressure measurement sensor, collection is installed
The dynamic pressure or dynamic temperature signal on pipeline are imported and exported or imported and exported to turbocharger air compressor；
Step 2：Design matched filter filters out the noise being added on surge signal, determines traveling time window length Δ T；
Turbocharger air compressor surge signal waveform according to collecting obtains filter coefficient vector, that is, completes to filter out superposition
The matched filter design of noise on to surge signal；Determined according to filter coefficient vector dimension and the sample frequency of setting
Traveling time window length Δ T；
Step 3：To by the filtered signal of matched filter in step 2, counting signal fluctuation in traveling time window length Δ T
Quantity；
To carrying out first difference, the again processing of Sign functions, difference successively by the filtered signal of matched filter in step 2
All data points in traveling time window length Δ T after calculus of differences again are carried out statistical disposition, count movement by computing
Signal fluctuation amount Δ x in time window length Δ T；
Step 4：Signal fluctuation amount Δ x in the traveling time window length Δ T counted according to step 3, determines decision threshold Δ
X0；
Step 5：Real time discriminating surge；
Dynamic temperature or dynamic pressure measurement sensor signal that real-time acquisition step 1 is installed, matched filtering is designed using step 2
Device filters out the noise being added on surge signal, and counts signal fluctuation quantity in traveling time window length Δ T according to step 3,
And step 3 is counted into the decision threshold Δ X that signal fluctuation amount Δ x is determined with step 4 in traveling time window length Δ T0In real time
Compare, upon displacement between in window length Δ T signal fluctuation amount Δ x be less than decision threshold Δ X0When, judge occur surge, i.e., it is real
Existing real time discriminating surge.
2. a kind of turbocharger centrifugal compressor surge recognition methods as claimed in claim 1, it is characterised in that：Also step
6：A kind of described turbocharger centrifugal compressor surge recognition methods, in turbocharger air compressor performance test field and
Turbocharger air compressor surge ONLINE RECOGNITION field has practical value and application prospect；For example：Applied to turbocharging hair
The on-line monitoring of turbocharger air compressor surge in motivation, takes measures in time when surge occurs for compressor, to ensure to increase
The reliability of operation of hydraulic motor.
3. a kind of turbocharger centrifugal compressor surge recognition methods as claimed in claim 1 or 2, it is characterised in that：Institute
Stating step 2, to implement step as follows,
Step 2.1：Design matched filter filters out the noise being added on surge signal；
The compressor surge signal measured according to step 1, intercepts a complete surge Wave data, and definition one is complete to breathe heavily
Vibration wave graphic data is by m groups of samples into then constituting the signal phasor of m dimension
<mrow>
<mover>
<mi>s</mi>
<mo>&OverBar;</mo>
</mover>
<mo>=</mo>
<msup>
<mrow>
<mo>&lsqb;</mo>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mn>0</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
<mo>,</mo>
<mo>...</mo>
<mo>,</mo>
<mi>s</mi>
<mrow>
<mo>(</mo>
<mi>m</mi>
<mo>-</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
<mo>&rsqb;</mo>
</mrow>
<mi>T</mi>
</msup>
</mrow>
Wherein：S (0), s (1) ..., s (m-1) is respectively the value for the m sampled point that a complete surge signal waveform is included；
Choose matched filter coefficient vectorCoefficient k is proportionality coefficient,
Proportionality coefficient k chooses according to the big freedom in minor affairs of actual measurement surge signal, i.e. complete design matched filter, and utilize matched filter
Filter out the noise being added on surge signal；
Step 2.2：Traveling time window length Δ T, i.e. root are determined according to the sample frequency of filter coefficient vector dimension and setting
Traveling time window length Δ T is determined according to equation below：
<mrow>
<mfrac>
<mrow>
<mn>2</mn>
<mo>*</mo>
<mi>m</mi>
</mrow>
<mi>f</mi>
</mfrac>
<mo>&le;</mo>
<mi>&Delta;</mi>
<mi>T</mi>
<mo>&le;</mo>
<mfrac>
<mrow>
<mn>3</mn>
<mo>*</mo>
<mi>m</mi>
</mrow>
<mi>f</mi>
</mfrac>
</mrow>
Wherein, f is signal sampling frequencies, the sampled point number that m is included by a complete surge Wave data.
4. a kind of turbocharger centrifugal compressor surge recognition methods as claimed in claim 1 or 2, it is characterised in that：Institute
State calculus of differences in step 3, again the calculus of differences method of calculus of differences be defined as follows,
It is x (k) to define values of the discrete signal x at the k moment, and the value at k+1 moment is x (k+1), its first-order difference signal y calculating
Method is：Y (k)=x (k+1)-x (k).
5. a kind of turbocharger centrifugal compressor surge recognition methods as claimed in claim 1 or 2, it is characterised in that：Institute
The step 4 stated determines decision threshold Δ X0Following method is selected to realize,
Surge occurred before the moment, took the average value of undulating value in m-1 time window lengthAfter pumping point, when taking m-1
Between fluctuation number average in window lengthGiven threshold takes both average values, that is, determines decision threshold Δ X0。
<mrow>
<msub>
<mi>&Delta;X</mi>
<mn>0</mn>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<mo>(</mo>
<msub>
<mi>&Delta;X</mi>
<mn>1</mn>
</msub>
<mo>+</mo>
<msub>
<mi>&Delta;X</mi>
<mn>2</mn>
</msub>
<mo>)</mo>
</mrow>
<mn>2</mn>
</mfrac>
</mrow>
6. a kind of turbocharger centrifugal compressor surge recognition methods as claimed in claim 1 or 2, it is characterised in that：Institute
The sample frequency for stating step 1 collection compressor import and export signal elects 80~100Hz as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405073.2A CN107202028B (en) | 2017-05-31 | 2017-05-31 | A kind of turbocharger centrifugal compressor surge recognition methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405073.2A CN107202028B (en) | 2017-05-31 | 2017-05-31 | A kind of turbocharger centrifugal compressor surge recognition methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107202028A true CN107202028A (en) | 2017-09-26 |
| CN107202028B CN107202028B (en) | 2019-03-29 |
Family
ID=59907187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710405073.2A Active CN107202028B (en) | 2017-05-31 | 2017-05-31 | A kind of turbocharger centrifugal compressor surge recognition methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107202028B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241346A (en) * | 2017-12-05 | 2018-07-03 | 北京智拓博科技有限公司 | Fluid machinery intelligent monitor system and its method |
| CN110608187A (en) * | 2019-10-30 | 2019-12-24 | 江西理工大学 | Axial flow compressor stall surge prediction device based on frequency characteristic change |
| CN110657991A (en) * | 2018-06-29 | 2020-01-07 | 中国航发商用航空发动机有限责任公司 | Surge monitoring method and surge monitoring system of aircraft engine |
| CN110848166A (en) * | 2019-11-13 | 2020-02-28 | 西北工业大学 | Axial flow compressor surge frequency prediction method |
| CN110925233A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Compressor surge fault diagnosis method based on acoustic signals |
| CN111828364A (en) * | 2020-07-23 | 2020-10-27 | 清华大学 | Surge detection method for centrifugal compressor |
| CN113482960A (en) * | 2021-06-23 | 2021-10-08 | 中国航发沈阳发动机研究所 | Method for judging surge of aviation gas turbine engine |
| CN114962305A (en) * | 2021-02-25 | 2022-08-30 | 中国航发商用航空发动机有限责任公司 | Method, device, system, equipment and medium for online detection of instability of gas compressor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63230999A (en) * | 1987-03-20 | 1988-09-27 | Kobe Steel Ltd | Control method for centrifugal compressor |
| CN102636247A (en) * | 2012-03-28 | 2012-08-15 | 西北工业大学 | Experimental method of surge detecting device of gas compressor |
| CN103867446A (en) * | 2012-12-07 | 2014-06-18 | 三星泰科威株式会社 | Method for anti-surge controlling of multi-stage compressing system |
| CN105673543A (en) * | 2015-12-31 | 2016-06-15 | 联合汽车电子有限公司 | Control method for preventing turbocharger surges |
| CN106678069A (en) * | 2017-03-13 | 2017-05-17 | 重庆江增船舶重工有限公司 | Detection method for preventing surge of centrifugal compressor from occurring |
-
2017
- 2017-05-31 CN CN201710405073.2A patent/CN107202028B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63230999A (en) * | 1987-03-20 | 1988-09-27 | Kobe Steel Ltd | Control method for centrifugal compressor |
| CN102636247A (en) * | 2012-03-28 | 2012-08-15 | 西北工业大学 | Experimental method of surge detecting device of gas compressor |
| CN103867446A (en) * | 2012-12-07 | 2014-06-18 | 三星泰科威株式会社 | Method for anti-surge controlling of multi-stage compressing system |
| CN105673543A (en) * | 2015-12-31 | 2016-06-15 | 联合汽车电子有限公司 | Control method for preventing turbocharger surges |
| CN106678069A (en) * | 2017-03-13 | 2017-05-17 | 重庆江增船舶重工有限公司 | Detection method for preventing surge of centrifugal compressor from occurring |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108241346A (en) * | 2017-12-05 | 2018-07-03 | 北京智拓博科技有限公司 | Fluid machinery intelligent monitor system and its method |
| CN110657991A (en) * | 2018-06-29 | 2020-01-07 | 中国航发商用航空发动机有限责任公司 | Surge monitoring method and surge monitoring system of aircraft engine |
| CN110608187A (en) * | 2019-10-30 | 2019-12-24 | 江西理工大学 | Axial flow compressor stall surge prediction device based on frequency characteristic change |
| CN110848166A (en) * | 2019-11-13 | 2020-02-28 | 西北工业大学 | Axial flow compressor surge frequency prediction method |
| CN110925233A (en) * | 2019-12-05 | 2020-03-27 | 中国航发四川燃气涡轮研究院 | Compressor surge fault diagnosis method based on acoustic signals |
| CN111828364A (en) * | 2020-07-23 | 2020-10-27 | 清华大学 | Surge detection method for centrifugal compressor |
| CN114962305A (en) * | 2021-02-25 | 2022-08-30 | 中国航发商用航空发动机有限责任公司 | Method, device, system, equipment and medium for online detection of instability of gas compressor |
| CN114962305B (en) * | 2021-02-25 | 2023-09-26 | 中国航发商用航空发动机有限责任公司 | Online detection method, device, system, equipment and medium for instability of gas compressor |
| CN113482960A (en) * | 2021-06-23 | 2021-10-08 | 中国航发沈阳发动机研究所 | Method for judging surge of aviation gas turbine engine |
| CN113482960B (en) * | 2021-06-23 | 2022-08-30 | 中国航发沈阳发动机研究所 | Method for judging surge of aviation gas turbine engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107202028B (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107202028A (en) | A kind of turbocharger centrifugal compressor surge recognition methods | |
| CN110608187B (en) | Axial-flow compressor stall surge prediction device based on frequency characteristic change | |
| CN106640722B (en) | A kind of device and method of pneumatic stability of gas compressor diagnosis and control | |
| Rajoo et al. | Unsteady performance analysis of a twin-entry variable geometry turbocharger turbine | |
| CN104296714B (en) | A kind of turbine cavity blade-tip clearance measuring method | |
| CN104234820A (en) | Two-staged turbocharging system testing device and testing method | |
| CN108699966A (en) | The surge detection method and surge detection device of booster | |
| CN109190166A (en) | A kind of blade pump cavitation determines and state evaluating method and its system | |
| CN204082312U (en) | A kind of two turbocharging systems testing apparatus | |
| CN107101834B (en) | Turbo-charger surge prediction meanss and prediction technique based on characteristic frequency | |
| CN107218984B (en) | Online diagnosis system and method for natural gas turbine flowmeter | |
| CN202228334U (en) | Device for on-line detecting of performance of axial flow fan | |
| CN105424105B (en) | Dust pelletizing system is responsible for air volume detecting method and on-line measuring device | |
| CN101995337A (en) | System and method for testing acceleration performance of turbocharger | |
| CN107167223A (en) | Transducer air conditioning compressor and pipeline vibration test system and method | |
| CN103294892A (en) | Gas compressor on-line characteristic analysis method based on temperature control function of gas turbine | |
| CN102937104A (en) | Turbine compressor test system | |
| CN110242588A (en) | A kind of centrifugal pump diagnostic signal acquisition system and method for diagnosing faults | |
| CN108469281A (en) | Two-phase Research on vortex signal processing based on EMD and Spectrum Correction | |
| CN104005975B (en) | The diagnostic method of a kind of axial fan stall and surge | |
| CN106499651A (en) | A kind of centrifugal compressor Non-steady characteristics platform and test method | |
| CN110261127A (en) | The stuck online test method of engine variable section turbocharger carbon distribution | |
| CN207472760U (en) | A kind of portable emission test device | |
| CN105060232B (en) | Oil depot petroleum vapor recovery integrated monitoring | |
| CN105987809A (en) | Centrifugal-compressor semi-open-type impeller crack detection method based on random resonance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |