CN108132429A - Vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus and method on-line - Google Patents
Vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus and method on-line Download PDFInfo
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- CN108132429A CN108132429A CN201711353828.5A CN201711353828A CN108132429A CN 108132429 A CN108132429 A CN 108132429A CN 201711353828 A CN201711353828 A CN 201711353828A CN 108132429 A CN108132429 A CN 108132429A
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- Prior art keywords
- vibratory impulse
- vehicle
- electric car
- mounted mobile
- high voltage
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The present invention relates to shipping mass assessment techniques, evaluating apparatus and method are monitored on-line more particularly to vehicle-mounted mobile high voltage variable electric car vibratory impulse, its device includes vehicle-mounted mobile high voltage variable electric car, the vasculum being installed on vehicle-mounted mobile high voltage variable electric car and the high-tension transformation equipment being positioned on vehicle-mounted mobile high voltage variable electric car；Including foreground partition and back partition；Foreground partition includes multiple 3-axis acceleration sensors, the vibratory impulse on-line computing model being connect with multiple 3-axis acceleration sensors, the display being connect with vibratory impulse on-line computing model；Vibratory impulse on-line computing model is connect by built-in wireless communication module with back partition；Multiple 3-axis acceleration sensors are installed on high-tension transformation equipment, and vibratory impulse on-line computing model and display are installed in vasculum.The device can realize the vibratory impulse acceleration on-line monitoring of vehicle-mounted mobile high voltage variable electric car, can reliably reflect the vibratory impulse situation in the transport of vehicle-mounted mobile high voltage variable electric car, complete the evaluation of shipping mass.
Description
Technical field
The invention belongs to shipping mass assessment technique field more particularly to vehicle-mounted mobile high voltage variable electric car vibratory impulse are online
Monitoring and evaluation device and method.
Background technology
The transport monitoring and evaluation of voltage electricity transforming devices for use is the ring that manufacturer, traffic unit and user pay much attention to
Section.In transportational process, if a voltage electricity transforming devices for use experienced excessively high mechanical oscillation impact, it would be possible to cause a variety of
It can be seen that with invisible damage, if wherein it is invisible damage be not found and handle in time, will cause device reliability reduce, exist
Accident hazard.
At present, for the transport of voltage electricity transforming devices for use, bump recorder is often only installed on transport device, record is entire
The acceleration maximum value of impact vibration in transportational process, the size of limit value are generally carried because the country there is no standard by manufactory
It is decided through consultation for or by contract for goods both sides, generally takes limit value as 3g, and there is no other physical quantitys as evaluation reference value.
Invention content
An object of the present invention is to provide one kind and can effectively and reliably reflect in the transport of vehicle-mounted mobile high voltage variable electric car
Vibratory impulse situation, complete the on-line monitoring evaluating apparatus of the evaluation of shipping mass.
The second object of the present invention is to provide a kind of vehicle-mounted mobile high voltage variable electric car vibratory impulse on-line monitoring evaluation method.
To realize above-mentioned first purpose, the technical solution adopted by the present invention is：A kind of vehicle-mounted mobile high voltage variable electric car shakes
Dynamic impact on-line monitoring evaluating apparatus, including vehicle-mounted mobile high voltage variable electric car, is installed on adopting on vehicle-mounted mobile high voltage variable electric car
Header and the high-tension transformation equipment being positioned on vehicle-mounted mobile high voltage variable electric car；Including foreground partition and back partition；Front office
Divide and include multiple 3-axis acceleration sensors, the vibratory impulse on-line computing model being connect with multiple 3-axis acceleration sensors, with
The display of vibratory impulse on-line computing model connection；Vibratory impulse on-line computing model passes through built-in wireless communication module and backstage
Part connects；Multiple 3-axis acceleration sensors are installed on high-tension transformation equipment, vibratory impulse on-line computing model and display
It is installed in vasculum.
In above-mentioned vehicle-mounted mobile high voltage variable electric car vibratory impulse on-line monitoring evaluating apparatus, in high-tension transformation equipment
Top and bottom at least installs a 3-axis acceleration sensor, and middle part is at least installed two three axis and accelerated along the longitudinal axis
Spend sensor.
To realize above-mentioned second purpose, the technical solution adopted by the present invention is：A kind of vehicle-mounted mobile high voltage variable electric car shakes
Dynamic impact on-line monitoring evaluation method, includes the following steps：
Step 1：The installation connection of evaluating apparatus is monitored on-line, including the vehicle-mounted mobile as described in on-line monitoring evaluating apparatus
High voltage variable electric car, 3-axis acceleration sensor, vibratory impulse on-line computing model, display connection relation carry out structure and electrical
Connection；
Step 2：Monitoring parameters are set, including setting sampling rate S, high-tension transformation equipment impact acceleration threshold peak
acri-max, impact critical duration Tcri, impact critical frequency fcri, back partition communication and system time and standard time
It is synchronous；
Step 3：Online data monitors, including real time acceleration-time waveform image, each vibratory impulse acceleration most
Big value amaxMonitoring and this transport attribute information acquisition；
Step 4：Analysis in real time and alarm, when transfiniting including each acceleration, vibratory impulse duration T, frequency of impact f
Calculating, the judgement of acceleration spectrogram, the acquisition of power spectral density and alarm；
Step 5：It display and sends on the spot, including monitoring data display on the spot over the display and by radio communication
Module is to back partition transmission data.
In above-mentioned vehicle-mounted mobile high voltage variable electric car vibratory impulse on-line monitoring evaluation method, ginseng is monitored described in step 2
Number setting, which specifically includes, defines impact acceleration threshold peak acri-maxFor：It is high when impact acceleration amplitude is not less than this value
Buckling electric equipment will likely be damaged, and during less than this value, high-tension transformation equipment will not damage；
Definition impact critical duration TcriFor：When shock duration T is not less than this value, high-tension transformation equipment will
It may damage；
Definition impact critical frequency fcriFor：When frequency of impact f is not more than this value, high-tension transformation equipment will likely damage.
In above-mentioned vehicle-mounted mobile high voltage variable electric car vibratory impulse on-line monitoring evaluation method, this is transported described in step 3
Defeated attribute information includes ship date, traffic unit, high-tension transformation equipment model.
In above-mentioned vehicle-mounted mobile high voltage variable electric car vibratory impulse on-line monitoring evaluation method, acceleration described in step 4
Transfinite the maximum value a for referring to that impact acceleration is moved in institute's vibration measuringmaxNot less than pre-set impact acceleration threshold peak acri-max
β times, β value ranges are 50%~100%；
The shock duration T is defined as：Occur to reach when passing through of zero for the first time to impact acceleration from impact
Between；
The frequency of impact f is defined as：The half of shock duration T inverses.
The beneficial effects of the invention are as follows：This on-line monitoring evaluating apparatus can complete shaking for vehicle-mounted mobile high voltage variable electric car in real time
Dynamic impact acceleration on-line monitoring, and data analysis is carried out automatically, physical quantity and formula are impacted by defined coupled vibration
Quantitative assessment is carried out, data result can send afield backstage, can effectively and reliably reflect vehicle-mounted mobile high-voltage transforming in real time
Vibratory impulse situation in vehicle transport, completes the evaluation of shipping mass.
Description of the drawings
Fig. 1 monitors evaluating apparatus wiring original on-line for one embodiment of the invention vehicle-mounted mobile high voltage variable electric car vibratory impulse
Reason figure；
Fig. 2 monitors evaluating apparatus front office on-line for one embodiment of the invention vehicle-mounted mobile high voltage variable electric car vibratory impulse
Separating device layout drawing；
Fig. 3 monitors evaluation method flow on-line for one embodiment of the invention vehicle-mounted mobile high voltage variable electric car vibratory impulse
Figure；
Wherein, the more a 3-axis acceleration sensors of 1-, 2- vibratory impulses on-line computing model, 3- displays, 4- wireless communications
Module, 5- vasculums, the first 3-axis acceleration sensors of 1#-, the second 3-axis acceleration sensors of 2#-, the three or three axis of 3#- accelerate
Spend sensor, the 4th 3-axis acceleration sensors of 4#-.
Specific embodiment
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end
As element or with same or like function element.The embodiments described below with reference to the accompanying drawings are exemplary, only
For explaining the present invention, and it is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the component of specific examples and setting are described.They are merely examples, and purpose is not
It is to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.This repetition be for
Simplify and clear purpose, the relationship between itself not indicating discussed various embodiments and/or setting.In addition, this hair
The bright example for providing various specific techniques and material, but those of ordinary skill in the art may realize that other techniques
The use of applicability and/or other materials.In addition, fisrt feature described below second feature it " on " structure can be with
Including the embodiment that the first and second features are formed as being in direct contact, first and second can also be formed in including other feature
Embodiment between feature, such first and second feature may not be to be in direct contact.
In description of the invention, it should be noted that unless otherwise prescribed and limit, term " connected " " connection " should be done extensively
Reason and good sense solution, for example, it may be the connection inside mechanical connection or electrical connection or two elements, can be directly connected,
It can also be indirectly connected by intermediary, for those of ordinary skill in the related art, can managed as the case may be
Solve the concrete meaning of above-mentioned term.
The present embodiment the technical solution adopted is that：As shown in Figure 1, vehicle-mounted mobile high voltage variable electric car vibratory impulse is monitored on-line
Evaluating apparatus, multiple 3-axis acceleration sensors 1 including foreground partition shake with what multiple 3-axis acceleration sensors 1 were connect
Dynamic impact on-line computing model 2, the display 3 and back partition that are connect with vibratory impulse on-line computing model 2.
As shown in Fig. 2, multiple 3-axis acceleration sensors 1 are respectively arranged in high-tension transformation equipment top, side and bottom
Key or interested place.Wherein top and bottom at least installs a 3-axis acceleration sensor, is that the one or three axis adds respectively
Velocity sensor 1#, the second 3-axis acceleration sensor 2#, middle part prolong longitudinal axis direction and at least install two 3-axis accelerations
Sensor is third 3-axis acceleration sensor 3#, the 4th 3-axis acceleration sensor 4# respectively.Vibratory impulse on-line computing model
2 and display 3 be installed in vasculum 5, vasculum 5 be mounted on vehicle-mounted mobile high voltage variable electric car on suitable position.
Vibratory impulse on-line computing model the acceleration information that multiple 3-axis acceleration sensors measure can be automatically processed for
Real time acceleration-time (a-T) waveform image, the maximum value a for obtaining each vibratory impulse accelerationmaxAnd this transport
Attribute information, including ship date, traffic unit, high-tension transformation equipment model.When the maximum value of impact acceleration is moved in institute's vibration measuring
amaxNot less than pre-set impact acceleration threshold peak acri-maxβ times (50%~100% can be taken according to actual demand)
When, vibratory impulse on-line computing model will calculate secondary vibratory impulse duration T, the frequency f automatically, and automatically to the attack time
Acceleration information carries out Fast Fourier Transform (FFT) in section, obtains acceleration spectrogram and power spectral density (PSD).If
The duration T of vibratory impulse is not less than pre-set impact critical duration TcriOr no more than pre-set impact
Critical frequency fcri, flashing red light alarmed, otherwise flashing yellow lamp alarmed by vibratory impulse on-line computing model.
Wherein related physical quantity is defined as follows：
Define one：Impact acceleration threshold peak acri-max：When impact acceleration amplitude is not less than this value, high-voltage transforming
Equipment will likely be damaged, and during less than this value, high-tension transformation equipment will not damage；
Define two：Shock duration T：Occur from impact to the elapsed time of impact acceleration first time arrival zero；
Define three：Impact critical duration Tcri：When shock duration T is not less than this value, high-tension transformation equipment will
It may damage；
Define four：Frequency of impact f：The half of shock duration T inverses；
Define five：Impact critical frequency fcri：When frequency of impact f is not more than this value, high-tension transformation equipment will likely damage
It is bad.
Moreover, vibratory impulse on-line computing model can preserve the total data information for obtaining Yu being analyzed to local hard
Disk can on the spot be shown at any time by display, while in real time can be passed total data information by built-in wireless communication module 4
It is defeated by distant place backstage.
The present embodiment additionally provides a kind of vehicle-mounted mobile high voltage variable electric car vibratory impulse on-line monitoring evaluation method, including with
Lower step：
S1：Device installation connection adds including vehicle-mounted mobile high voltage variable electric car, three axis as described in on-line monitoring evaluating apparatus
Velocity sensor, vibratory impulse on-line computing model, the connection relation progress structure of display and electric wiring connection；
S2：Monitoring parameters are set, and including setting sampling rate S, vehicle-mounted mobile voltage electricity transforming devices for use impact acceleration is critical
Peak value acri-max, impact critical duration Tcri, impact critical frequency fcri, background communication and system time and standard time
It is synchronous；
S3：Online data monitors, including real time acceleration-time (a-T) waveform image, each vibratory impulse acceleration
Maximum value amaxMonitoring and this transport attribute information acquisition；
S4：Analysis in real time and alarm, when transfiniting including each acceleration, the calculating of vibratory impulse duration T, frequency f,
Acceleration spectrogram, power spectral density (PSD) acquisition and alarm judgement；
S5：It display and sends on the spot, including monitoring data display on the spot over the display and by radio communication mould
Block distally backstage data send.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
Although describing the specific embodiment of the present invention above in association with attached drawing, those of ordinary skill in the art should
Understand, these are merely examples, and various deformation or modification can be made to these embodiments, without departing from the original of the present invention
Reason and essence.The scope of the present invention is only limited by the claims that follow.
Claims (6)
1. a kind of vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus on-line, including vehicle-mounted mobile high voltage variable electric car,
The vasculum being installed on vehicle-mounted mobile high voltage variable electric car and the high-tension transformation equipment being positioned on vehicle-mounted mobile high voltage variable electric car；
It is characterized in that including foreground partition and back partition；Foreground partition includes multiple 3-axis acceleration sensors, adds with multiple three axis
The vibratory impulse on-line computing model of velocity sensor connection, the display being connect with vibratory impulse on-line computing model；Vibratory impulse
On-line computing model is connect by built-in wireless communication module with back partition；Multiple 3-axis acceleration sensors are installed on high pressure
On transformer equipment, vibratory impulse on-line computing model and display are installed in vasculum.
2. vehicle-mounted mobile high voltage variable electric car vibratory impulse as described in claim 1 monitors evaluating apparatus on-line, it is characterized in that,
The top and bottom of high-tension transformation equipment at least installs a 3-axis acceleration sensor, and middle part is at least pacified along the longitudinal axis
Fill two 3-axis acceleration sensors.
3. a kind of vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluation method on-line, it is characterized in that, include the following steps：
Step 1：The installation connection of evaluating apparatus is monitored on-line, including the vehicle-mounted mobile high pressure as described in on-line monitoring evaluating apparatus
Become electric car, 3-axis acceleration sensor, vibratory impulse on-line computing model, the connection relation progress structure of display and electric wiring
Connection；
Step 2：Monitoring parameters are set, including setting sampling rate S, high-tension transformation equipment impact acceleration threshold peak acri-max、
Impact critical duration Tcri, impact critical frequency fcri, back partition communication and system time are synchronous with the standard time；
Step 3：Online data monitors, the maximum value including real time acceleration-time waveform image, each vibratory impulse acceleration
amaxMonitoring and this transport attribute information acquisition；
Step 4：In real time analysis and alarm, when transfiniting including each acceleration, vibratory impulse duration T, frequency of impact f meter
It calculates, the judgement of acceleration spectrogram, the acquisition of power spectral density and alarm；
Step 5：It display and sends on the spot, including monitoring data display on the spot over the display and by radio communication module
To back partition transmission data.
4. vehicle-mounted mobile high voltage variable electric car vibratory impulse as claimed in claim 3 monitors evaluation method on-line, it is characterized in that, step
The rapid 2 monitoring parameters setting, which specifically includes, defines impact acceleration threshold peak acri-maxFor：When impact acceleration amplitude not
During less than this value, high-tension transformation equipment will likely damage, and during less than this value, high-tension transformation equipment will not damage；
Definition impact critical duration TcriFor：When shock duration T is not less than this value, high-tension transformation equipment will likely
Damage；
Definition impact critical frequency fcriFor：When frequency of impact f is not more than this value, high-tension transformation equipment will likely damage.
5. vehicle-mounted mobile high voltage variable electric car vibratory impulse as claimed in claim 3 monitors evaluation method on-line, it is characterized in that, step
The attribute information of rapid 3 this transport includes ship date, traffic unit, high-tension transformation equipment model.
6. vehicle-mounted mobile high voltage variable electric car vibratory impulse as claimed in claim 3 monitors evaluation method on-line, it is characterized in that, step
Rapid 4 acceleration transfinites the maximum value a for referring to that impact acceleration is moved in institute's vibration measuringmaxNot less than pre-set impact acceleration
Threshold peak acri-maxβ times, β value ranges are 50%~100%；
The shock duration T is defined as：Occur from impact to the elapsed time of impact acceleration first time arrival zero；
The frequency of impact f is defined as：The half of shock duration T inverses.
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| CN201711353828.5A CN108132429A (en) | 2017-12-15 | 2017-12-15 | Vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus and method on-line |
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| CN201711353828.5A CN108132429A (en) | 2017-12-15 | 2017-12-15 | Vehicle-mounted mobile high voltage variable electric car vibratory impulse monitors evaluating apparatus and method on-line |
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Cited By (1)
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| CN116680549A (en) * | 2023-08-04 | 2023-09-01 | 南京数维软件科技有限公司 | Frequency domain analysis method for mechanical impact damage in transformer transportation process |
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Application publication date: 20180608 |