CN103353847A - Simulation device for electrical equipment discharge detection based on virtual realization and realization method thereof - Google Patents
Simulation device for electrical equipment discharge detection based on virtual realization and realization method thereof Download PDFInfo
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Abstract
The invention discloses a simulation device for electrical equipment discharge detection based on virtual realization and a realization method thereof. The device comprises a virtual detection scene unit, a virtual local discharge detection unit, a local discharge failure simulation unit and a virtual detection process control unit, wherein the virtual detection scene unit simulates the physical detection environment; the virtual local discharge detection unit reads a failure model in the local discharge failure simulation unit, virtually tests the virtual detection scene unit of the according to operation sequence table of the virtual detection process control unit, and performs display. The device and the realization method thereof adopt virtual reality technology to develop realistic virtual working environment, greatly increases sense of reality of the virtual detection process and can create different virtual detection scenes according to different training requirements, so as to constantly enrich the content of the simulation training.
Description
Technical field
The present invention relates to a kind of electrical equipment simulator and its implementation, relate in particular to a kind of electrical equipment discharge examination simulator and its implementation based on virtual reality technology, belong to the Simulating technique in Electric Power System field.
Background technology
Switch cubicle is one of the most widely used equipment in electric power system, the large-scale substation.Owing to reasons such as its built-in electrical insulation complex structure, electric field and thermal field uneven distribution and throughout the year uninterrupted charged work, accident rate is quite high, directly affects the power supply reliability of whole electric power system.Therefore, the partial discharge monitoring of carrying out switch cubicle at electric power system, large-scale substation is extremely important.Switch cubicle is after the process operation of certain hour, and owing to reasons such as device aging, damages, its more operating parameters can change, thereby have potential faults.Online detection to switch cubicle has become one of the heaviest routine work of operating maintenance personnel.Carry out detection simulation by the shelf depreciation to switch cubicle, can realize the monitoring to its operating condition, thereby switch cubicle is carried out failure prediction, avoid the generation of accident.
At present, partial discharge of switchgear detection simulation technology commonly used generally is based on physical equipment and the simulated environment set up.Although these technology can realize simulated effect true to nature, but need great cost owing to being equipped with various physical equipments, and existence needs problem charged, that test in the physical equipment emulation under high voltage condition, disturb large, poor stability, efficient low, so that it is difficult to become the emulation technology of ubiquity, can't satisfy the electrical network business demand of current development.
Take the feeling of immersion of height and good interactivity as the virtual reality technology of feature, can realize manual simulation's environment true to nature, effectively simulate the behavior of people's various sensory perceptual systems in physical environment, be widely applied in fields such as emulation training, virtual experimentals.A kind of partial discharge of switchgear detection method is disclosed respectively in application number is 201210258835.8,201210258700.1 Chinese invention patent application.The two all adopts virtual reality technology to realize the three-dimensional artificial of switch cubicle equipment, has realized simultaneously the copying and the partial discharges fault model that is applicable to this instrument of PDM03 instrument for measuring partial discharge.But the emulation mode that these technical schemes provide, testing procedure and partial discharges fault model are only applicable to utilize PDM03 to carry out the simulator of Partial Discharge Detection, do not possess general applicability.
Summary of the invention
For the existing deficiency of prior art, technical matters to be solved by this invention is to provide a kind of electrical equipment discharge examination simulator and its implementation based on virtual reality.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
On the one hand, the invention provides a kind of electrical equipment discharge examination simulator based on virtual reality, comprise
Virtual detection scene unit, virtual Partial Discharge Detection unit, partial discharges fault simulation unit, virtual detection process control unit; Wherein,
Described virtual detection scene unit analog physical testing environment;
Described virtual Partial Discharge Detection unit reads the fault model in the described partial discharges fault simulation unit, intends testing described virtual detection scene unit and showing by the sequence of operation exterior deficiency of virtual detection process control unit.
Wherein more preferably, described virtual detection scene unit comprises dummy metal door/window and virtual local discharge switch cabinet.
Wherein more preferably, described virtual Partial Discharge Detection unit is virtual UltraTEV Plus+ detecting instrument.
On the other hand, the present invention also provides a kind of Simulation Methods based on above-mentioned electrical equipment discharge examination simulator, comprises the steps:
Set up virtual device, virtual Partial discharge detector device and partial discharges fault model;
Read in the parameter of virtual device, virtual Partial discharge detector device and partial discharges fault model, generate the virtual detection scene unit for local discharge of electrical equipment, produce the analogue measurement indicating value of local discharge of electrical equipment fault;
In virtual scene, carry out shelf depreciation and detect online, obtain emulation and detect data and show detected value, the analytical test result.
Wherein more preferably, described partial discharges fault model is measured indicating value and is set up according to background value, equipment running status, typical case.
Wherein more preferably, described analogue measurement indicating value comprises: shelf depreciation ultrasonic measurement indicating value and shelf depreciation ultrasonic measurement indicating value;
Described analogue measurement indicating value is calculated by following formula:
Shelf depreciation ultrasonic measurement indicating value=A+(B-A) * RAND ();
Shelf depreciation ultrasonic measurement indicating value=C+(D-C) * RAND ();
Wherein, [A, B] is under the current running status of electrical equipment, and the shelf depreciation voltage-to-ground is measured the span of indicating value, and [C, D] is under the current running status of electrical equipment, the span of shelf depreciation ultrasonic measurement indicating value.
Wherein more preferably, the described shelf depreciation of carrying out in virtual scene detects online, and the step that obtains emulation detection data further comprises:
Read in the sequence of operation of virtual local discharge switch cabinet Partial Discharge Detection, set up sequence of operation tabulation;
The virtual detection scene unit receives user operation case, and the virtual detection process control unit judges according to the sequence of operation whether the current operation event can be carried out;
If the current operation event of Action Events and the sequence of operation is inconsistent, then abandon Action Events;
If Action Events is identical with the current operation event of the sequence of operation, then concrete operations object handles user operation case and the current operation event cumulative according to Action Events goes on foot.
Wherein more preferably, the step of described concrete operations object handles user operation case according to Action Events further comprises:
If the operand of Action Events is to select virtual device, then Action Events returns to the processing of virtual detection scene unit, and the virtual device of being chosen by virtual detection scene unit Action Events is set to selected state;
If the operand of Action Events is the button of virtual Partial discharge detector device, then Action Events passes to virtual Partial Discharge Detection cell processing.
Electrical equipment discharge examination simulator provided by the present invention and its implementation, the employing virtual reality technology has realized the virtual work environment of high fidelity, has greatly improved the sense of reality of virtual detection process.The present invention can according to different training needs, set up different virtual detection scenes, the content of the emulation training of enriching constantly.
Description of drawings
Fig. 1 is the one-piece construction schematic diagram of electrical equipment discharge examination simulator;
Fig. 2 is the virtual scene figure of electrical equipment discharge examination simulator;
Fig. 3 is in one embodiment of the present of invention, the model schematic diagram of virtual local discharge switch cabinet;
Fig. 4 is in one embodiment of the present of invention, the model schematic diagram of virtual UltraTEV Plus+ detecting instrument;
Fig. 5 is the utility appliance illustraton of model of virtual UltraTEV Plus+ detecting instrument;
Fig. 6 is the schematic flow sheet of electrical equipment discharge examination Simulation Methods;
Fig. 7 is the operating process schematic diagram of virtual UltraTEV Plus+ detecting instrument.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the invention provides a kind of electrical equipment discharge examination simulator based on virtual reality, this electrical equipment discharge examination simulator comprises: virtual detection scene unit, virtual Partial Discharge Detection unit, partial discharges fault simulation unit, virtual detection process control unit; Virtual detection scene unit analog physical testing environment; Virtual Partial Discharge Detection unit reads the fault model in the partial discharges fault simulation unit, intends test virtual detection scene unit and shows testing result by the sequence of operation exterior deficiency of virtual detection process control unit.The below take by electrical equipment as example as switch cubicle, and this electrical equipment discharge examination simulator is launched detailed explanation.
In the present invention, the virtual detection scene unit is the virtual detection environment according to the three-dimensional picture of training needs foundation, the operative scenario of analog switch cabinet Partial Discharge Detection.As shown in Figure 2, this virtual detection scene unit comprises virtual high-tension apparatus chamber, and this virtual high-tension apparatus chamber is provided with dummy metal door, dummy metal window, virtual local discharge switch cabinet etc.A plurality of virtual local discharge switch cabinets are arranged in the virtual high-tension apparatus chamber according to electrical specification, consist of the virtual detection scene unit of simulator.Wherein the layout of virtual local discharge switch cabinet and number can arrange flexibly according to concrete training needs, set up different virtual detection scenes, the training contents of enriching constantly.
The virtual detection scene unit preferably imports from 3DMax software.In one embodiment of the invention, virtual high-tension apparatus chamber is a rectangle room that shows with three-dimensional picture, comprises four sides virtual wall, four dummy metal windows and a fan dummy metal door.Wherein dummy metal window and dummy metal door are distinguished called after win1, win2, win3, win4, door1, and dummy metal window and dummy metal door can be accepted Action Events.As shown in Figure 3, virtual local discharge switch cabinet presents in the three-dimensional picture mode, one group in preferred per 4 virtual local discharge switch cabinets.Preferably put 4 groups of virtual local discharge switch cabinets in the virtual high-tension apparatus chamber, consist of the detected equipment of simulator.Virtual local discharge switch cabinet is respectively: switch cubicle 1, switch cubicle 2, switch cubicle 3, switch cubicle 4, switch cubicle 5, switch cubicle 6, switch cubicle 7, switch cubicle 8, switch cubicle 9, switch cubicle 10, switch cubicle 11, switch cubicle 12, switch cubicle 13, switch cubicle 14, switch cubicle 15, switch cubicle 16 by arranging the sequence number name.Virtual local discharge switch cabinet can be accepted Action Events.
UltraTEV Plus+ is that partial discharge of switchgear detects the widest instrument of use online.As shown in Figure 4, virtual Partial Discharge Detection unit preferably carries out the virtual UltraTEV Plus+ detecting instrument of emulation, virtual UltraTEV Plus+ detecting instrument and virtual peripheral etc. take UltraTEV Plus+ as prototype.Virtual UltraTEV Plus+ detecting instrument comprises the parts such as instrument body, button, display screen.Virtual UltraTEV Plus+ detecting instrument body part is a three-dimensional picture, called after UltraTEVPlus body.Virtual UltraTEV Plus+ detecting instrument has power supply, upper and lower, left and right, six exercisable buttons of affirmation (OK), respectively called after: power key, upper key, lower key, left button, right button, acknowledgement key.Power key, upper key, lower key, left button, right button, acknowledgement key can operate these buttons by mouse, and the function of analog meter, carry out the switching of mode of operation, display mode.The instrument body part can be accepted Action Events.The display screen of virtual detection instrument is rectangle pinup picture parts, can show test results according to display mode called after: liquid crystal display.As shown in Figure 5, the connection terminal of virtual UltraTEV Plus+ detecting instrument can the sound insulation earphone, the utility appliance such as rubber focusing probe, stethoscope (contact) connect.Virtual UltraTEV Plus+ detecting instrument and virtual peripheral are arranged in virtual high-tension apparatus chamber according to electrical specification, consist of the virtual detection equipment of simulator.
The typical test data that the partial discharges fault simulation unit is read in virtual UltraTEV Plus+ detecting instrument (claims that also the typical case measures indicating value, for example fault model ultrasonic measurement indicating value, fault model voltage-to-ground are measured indicating value), set up the corresponding relation between background value, equipment running status, the typical case's measurement indicating value, set up the partial discharges fault model.The test indicating value of UltraTEV Plus+ detecting instrument under the different running statuses of partial discharge of switchgear fault model analog switch cabinet (equipment voltage-to-ground and hyperacoustic abnormal conditions when for example the partial discharge of switchgear model can analog switch cabinet shelf depreciation), virtual Partial Discharge Detection unit carries out the online virtual detection work of partial discharge of switchgear in the partial discharges fault model.
The virtual detection process control unit reads in the sequence of operation of virtual local discharge switch cabinet Partial Discharge Detection from Parameter File, set up sequence of operation tabulation.Detect the Action Events such as action type, three-dimensional part of appliance title and be delivered to the virtual detection process control unit by the virtual detection scene unit.Virtual Partial Discharge Detection unit reads the fault model in the partial discharges fault simulation unit, intends detecting the virtual detection scene unit and showing by the sequence of operation exterior deficiency of virtual detection process control unit.
In order further to embody the advance of electrical equipment discharge examination simulator of the present invention, the present invention also provides a kind of Simulation Methods based on above-mentioned electrical equipment discharge examination simulator, comprises the steps: to set up virtual device, virtual Partial discharge detector device and partial discharges fault model; Read in the parameter of virtual device, virtual Partial discharge detector device and partial discharges fault model, generate the virtual detection scene unit for local discharge of electrical equipment, produce the analogue measurement indicating value of partial discharge of switchgear fault; Carrying out shelf depreciation in virtual scene detects online acquisition emulation detection data and shows detected value, the analytical test result.
At first, introduce the concrete steps of setting up virtual device, virtual Partial discharge detector device and partial discharges fault model:
1) sets up virtual device
Below, to set up virtual local discharge switch cabinet as preference, the method for setting up virtual device is described in detail.
Generally speaking, set up virtual high-tension apparatus chamber and be based on physical electrical equipment, set up virtual high-tension apparatus chamber experimental site that is virtually reality like reality by dummy metal door/window, the virtual local discharge switch cabinet of metal-enclosed type.Arrange one group and comprise virtual local discharge switch cabinet in virtual high-tension apparatus chamber, wherein, the shelf depreciation point of virtual local discharge switch cabinet is corresponding with the shelf depreciation point of described shelf depreciation model.Virtual local discharge switch cabinet is set comprises the steps: at first, adopt virtual reality technology, set up a virtual high-tension apparatus chamber.In the present invention, can select the commercial modeling tool of existing maturation to the electrical equipment modeling, such as 3 d modeling software 3DSMax etc.Particularly, as shown in Figure 2, adopt the 3DMax business software, the various physical equipments of simulated high-pressure canyon are set up a virtual high-tension apparatus chamber.Then, on this virtual high-tension apparatus chamber, adopt virtual reality technology that one group of virtual local discharge switch cabinet is set; As shown in Figure 3, adopt the 3DMax business software to set up virtual local discharge switch cabinet according to the proportionate relationship of the length of actual shelf depreciation switch cubicle.This virtual local discharge switch cabinet surface adopts the pinup picture mode to realize.As shown in Figure 2, a plurality of virtual local discharge switch cabinets are arranged in virtual high-tension apparatus chamber according to electrical specification, consist of the virtual detection electrical equipment of simulator.Again, at this virtual local discharge switch the shelf depreciation point is set cashier's office in a shop.Particularly, as the shelf depreciation point, form the corresponding relation between this shelf depreciation point and the shelf depreciation model measurement indicating value at point of the inner selection of virtual local discharge switch cabinet.
Should be appreciated that the dummy metal door and the dummy metal window that detect in the virtual high-tension apparatus chamber also can set up corresponding dummy metal door and dummy metal window according to the method described above, just repeat no more at this.
2) set up virtual Partial discharge detector device
When in transformer station, electrical equipment being carried out Partial Discharge Detection, be the virtual local discharge switch cabinet of metal-enclosed type that detects in the virtual high-tension apparatus chamber the most widely.And the preferred Multifunctional hand-held of the Partial discharge detector's device Partial discharge detector (UltraTEV Plus+) that these local discharge of electrical equipment are detected.
In the present invention, set up the instrument models of detecting instrument according to the performance parameter of the detecting instrument (for example Multifunctional hand-held Partial discharge detector) that uses in the partial discharge of switchgear detection and location experiment.In one embodiment of the invention, adopt virtual reality technology, as prototype, fictionalize on computers its external structure with the detecting instrument that uses in the partial discharge of switchgear detection and location, and the position of its all parts is set, and have the function identical with actual detecting instrument.The below launches detailed explanation to set up virtual UltraTEV Plus+ detecting instrument experimental apparatus that is virtually reality like reality based on physical electrical equipment Multifunctional hand-held Partial discharge detector as preference to the method for setting up virtual Partial discharge detector device:
Take UltraTEV Plus+ detecting instrument as the virtual UltraTEV Plus+ of prototype detecting instrument.The virtual UltraTEV Plus+ of contour structures detecting instrument shell according to UltraTEV Plus+ detecting instrument; The simulation component of virtual UltraTEV Plus+ detecting instrument on this UltraTEV Plus+ detecting instrument shell; This simulation component comprises three-dimensional button, connection terminal, three-dimensional display screen; In addition, can also comprise other utility appliance such as connector sound insulation earphone, rubber focusing probe, stethoscope (contact).
Particularly, set up virtual UltraTEV Plus+ detecting instrument with the 3DMax business software according to the proportionate relationship of the length of UltraTEV Plus+ detecting instrument, adopt the pinup picture mode to realize the shell of instrument.As shown in Figure 4, call in the tool housing that the 3DMax business software is made, reach and function according to control on the following manner definition instrument: (1) is in the position of the display screen of tool housing above just, the liquid crystal display model that superposes, the function that the analog detection instrument display shields.(2) in the position of the button of tool housing above just, stack upper and lower, left and right, affirmation, power knob be totally six button models, and according to their attribute of functional definition, the function of upper and lower, left and right, affirmation, power knob in the difference analog detection instrument.(3) superpose in earphone jack, probe insertion, the pilot lamp position in tool housing front corresponding jack and pilot lamp model, and according to their attribute of functional definition, the respectively function of jack and pilot lamp in the analog detection instrument.
As shown in Figure 5, should be appreciated that, other utility appliance such as the sound insulation earphone of virtual UltraTEV Plus+ detecting instrument, rubber focusing probe, stethoscope (contact) also can be set up corresponding virtual three-dimensional model according to the method described above, have not just given unnecessary details at this.
3) set up the partial discharges fault model
Voltage-to-ground and hyperacoustic abnormal conditions when the partial discharges fault model is used for analog switch cabinet shelf depreciation.This partial discharges fault model depends on virtual device, result from the three-dimensional space of virtual local discharge switch cabinet, the virtual local discharge switch cabinet of fault is definite by predefined initialization files, and abort situation generates at random, and normal, unusual, uncertain three kinds of running statuses are arranged.The partial discharges fault model not only can be simulated the indicating values such as discharge amplitude, umber of pulse and discharge earthquake intensity that ultrasonic Method for Measuring records under the different running statuses qualitatively, and can simulate qualitatively the indicating value of the voltage-to-ground value of virtual local discharge switch cabinet shell under the different running statuses.
According to the typical data of virtual local discharge switch cabinet Partial Discharge Detection detection and localization, set up the corresponding relation between background value, equipment running status, the typical case's measurement indicating value, consist of the partial discharges fault model.In one embodiment of the invention, be directed to the ultrasonic voltage-to-ground that involves that virtual local discharge switch cabinet shelf depreciation produces, set up the partial discharges fault model of virtual local discharge switch cabinet.
Table 1 is in the Partial Discharge Detection positioning experiment of virtual local discharge switch cabinet, typical test data that the ultrasonic measurement of UltraTEV Plus+ detecting instrument obtains has been described the relation between the ultrasound wave indicating value that typical virtual shelf depreciation switch cubicle running status, background value and UltraTEV Plus+ detecting instrument record.The fault model of ultrasound examination is carried out the Computer Simulation deterministic simulation according to table 1, obtain the ultrasound examination fault model as virtual local discharge switch cabinet shelf depreciation model.
| Background value | Non-fault is measured indicating value | Uncertain measurement indicating value | Measurement indicating value during |
| 0～10dB | Value≤20dB | 20＜value≤30dB | 30＜value |
| 10～20dB | Value≤20dB | 25＜value≤30dB | 30＜value |
The span of ultrasonic measurement indicating value in table 1 fault model
Table 2 is in the Partial Discharge Detection positioning experiment of virtual local discharge switch cabinet, typical test data that UltraTEV Plus+ detecting instrument ground voltage measure to obtain has been described the relation between the indicating value of the switch board housing voltage-to-ground that typical virtual shelf depreciation switch cubicle running status, background value and UltraTEV Plus+ detecting instrument record.The fault model that voltage-to-ground is detected carries out the deterministic simulation acquisition as the voltage measurement fault model of virtual local discharge switch cabinet shelf depreciation model according to table 2.
| Background value | Non-fault is measured indicating value | Uncertain measurement indicating value | Measurement indicating value during |
| 0～10dB | Value≤ |
0＜value≤6dB | 6＜value |
Voltage-to-ground is measured the span of indicating value in table 2 fault model
This electrical equipment discharge examination simulator is when starting; in virtual local discharge switch cabinet, select at random a virtual local discharge switch cabinet to be set to unusual or nondeterministic statement; all the other virtual local discharge switch cabinets are normal condition; the fault model program is according to the state of virtual local discharge switch cabinet; according to table 1, scope that table 2 is given, be that each virtual local discharge switch cabinet generates simulated data in the span of correspondence.During test, the virtual detection instrument shows by the name lookup simulated data of virtual local discharge switch cabinet.Fault model is according to fault type, table 1, table 2 for scope in produce a Partial Discharge Data, when carrying out Partial Discharge Detection, the probe of virtual detection instrument is moved on to surface or the place, slit of tested equipment, press the ok button, then the virtual detection instrument reads the Partial Discharge Data of the fault model generation of this tested equipment, and is presented on the screen of virtual detection instrument.
Secondly, introduce the parameter of reading in virtual device, virtual Partial discharge detector device and partial discharges fault model, generate the step for the virtual detection scene unit of local discharge of electrical equipment, produce the analogue measurement indicating value of partial discharge of switchgear fault.The below is that to be UltraTEV Plus+ virtual detection instrument describe respectively as example for virtual local discharge switch cabinet, virtual Partial discharge detector device take virtual device:
1) reads in the parameter of virtual UltraTEV Plus+ detecting instrument and virtual peripheral.In this step, read in advance the data such as defined parameters, experiment virtual peripheral of the parts such as the virtual UltraTEV Plus+ detecting instrument set up, button, display screen, prepare in the virtual detection scene unit, to show and operate.
2) read in the parameter of virtual local discharge switch cabinet.
In this step, read in the parameter of predefined virtual local discharge switch cabinet, according to parameters such as position, displaying ratio, titles, generate whole virtual local discharge switch cabinets.
3) read in the fault model parameter.
In this step, read in pre-defined shelf depreciation model and configuration parameter thereof, in the virtual local discharge switch cabinet of appointment, generate the trouble spot.Fault model defines in configuration file, can make amendment according to the difference of tested object.
The fault model parameter of reading in comprises ultrasound examination fault model parameter and voltage-to-ground detection failure model parameter, and the ultrasound examination fault model reads in according to table 1 form, and voltage-to-ground detection failure model reads in according to table 2 form.
4) generating virtual shelf depreciation partial discharge of switchgear detects virtual scene online, produces the analogue measurement indicating value of partial discharge of switchgear fault.
The virtual detection scene unit is the virtual environment of a three-dimensional picture, virtual local discharge switch cabinet shelf depreciation detects virtual scene online by a virtual high-tension apparatus chamber, the virtual local discharge switch cabinet of four rows, the compositions such as virtual UltraTEV Plus+ detecting instrument and utility appliance, wherein all equipment all presents in the three-dimensional picture mode, when generating virtual shelf depreciation partial discharge of switchgear detects virtual scene online, simulator is according to configuration parameter shelf depreciation point of random generation in certain virtual local discharge switch cabinet, the shelf depreciation point of virtual local discharge switch cabinet is corresponding with the shelf depreciation point of described shelf depreciation model, and virtual UltraTEV Plus+ detecting instrument can carry out the online virtual detection work of virtual local discharge switch cabinet shelf depreciation therein.
Produce the method for the analogue measurement indicating value of partial discharge of switchgear fault, mainly may further comprise the steps:
(1) background value of generation virtual detection scene unit.The background value of virtual detection scene unit is a random number that produces with the computing machine random function, and the span of the background value of virtual detection scene unit is between [0,20].
(2) be virtual local discharge switch cabinet running state data of the random generation of virtual local discharge switch cabinet with the computing machine random function.Virtual local discharge switch cabinet running status has three kinds of states, that is: 0,1,2 represent respectively normal condition, nondeterministic statement, abnormality.
(3) calculate the span that the typical case measures indicating value.Read background value and the virtual local discharge switch cabinet running status of virtual detection scene unit, take virtual detection scene unit background value and virtual local discharge switch cabinet running status as index, search partial discharges fault model, determine the span [A of shelf depreciation voltage-to-ground measurement indicating value, B] and the span [C, D] of shelf depreciation ultrasonic measurement indicating value.
(4) calculate virtual typical case and measure indicating value.Measure the span [A of indicating value according to the shelf depreciation voltage-to-ground, B] and the span [C of shelf depreciation ultrasonic measurement indicating value, D], produce one at [A with the computing machine random function is random, B] numerical value in the scope and one is at [C, D] the interior numerical value of scope, the shelf depreciation voltage-to-ground that is this virtual local discharge switch cabinet is measured indicating value and shelf depreciation ultrasonic measurement indicating value.Computing formula is described as follows:
Shelf depreciation ultrasonic measurement indicating value=A+(B-A) * RAND ();
Shelf depreciation ultrasonic measurement indicating value=C+(D-C) * RAND ().
(5) repeating step (4) is until generating virtual detects the measurement indicating value of all virtual local discharge switch cabinets in the scene unit.
At last, introduction is carried out shelf depreciation and is detected online in virtual scene, obtains emulation detection data and also shows detected value, analytical test result's concrete steps.：
1) reads in the sequence of operation of virtual local discharge switch cabinet Partial Discharge Detection, set up sequence of operation tabulation.
After starting electrical equipment discharge examination simulator, from Parameter File, read in the sequence of operation of virtual local discharge switch cabinet Partial Discharge Detection, set up sequence of operation tabulation.Sequence of operation tabulation comprises that virtual local discharge switch cabinet shelf depreciation voltage-to-ground detects sequence of operation tabulation and virtual local discharge switch cabinet shelf depreciation ultrasound examination sequence of operation tabulation.
Virtual local discharge switch cabinet shelf depreciation voltage-to-ground detects sequence of operation tabulation, comprises the following sequence of operation:
Virtual UltraTEV Plus+ detecting instrument start
Enter ' selection ' pattern
Enter ' voltage tester ' pattern
Select the background value of dummy metal door, dummy metal window test virtual detection scene unit
Tested virtual local discharge switch cabinet number 16
Select virtual local discharge switch cabinet to test the shelf depreciation voltage-to-ground of virtual local discharge switch cabinet
Show that the typical case measures indicating value and selects disposal route
Finish test
Display measurement number of times and processing accuracy.
The shelf depreciation ultrasound examination sequence of operation tabulation of virtual local discharge switch cabinet comprises the following sequence of operation:
Virtual UltraTEV Plus+ detecting instrument start
Enter ' selection ' pattern
Enter ' ultrasonic investigation ' pattern
Select the background value of dummy metal door or dummy metal window test virtual detection scene unit
Tested virtual local discharge switch cabinet number 16
Select virtual local discharge switch cabinet to test the shelf depreciation ultrasound wave of virtual local discharge switch cabinet
Show that the typical case measures indicating value and selects disposal route
Finish test
Display measurement number of times and processing accuracy.
2) the virtual detection scene unit receives user operation case, and the virtual detection process control unit judges according to the sequence of operation whether the current operation event can be carried out.
Action Events is delivered to the virtual detection process control unit from the virtual detection scene unit, and Action Events comprises the information such as action type, three-dimensional part of appliance title.The virtual detection process control unit compares Action Events and the sequence of operation, if the current operation event of Action Events and the sequence of operation is inconsistent, then abandons Action Events.If Action Events is identical with the current operation event of the sequence of operation, then concrete operations object handles user operation case and the current operation event cumulative according to Action Events goes on foot.
Step according to the concrete operations object handles user operation case of Action Events is specific as follows: if the operand of Action Events is virtual door, window, virtual local discharge switch cabinet, then Action Events returns to the processing of virtual detection scene unit, is set to selected state by the equipment in the virtual detection scene unit Action Events.If the operand of Action Events is the button of virtual UltraTEV Plus+ detecting instrument, then Action Events passes to virtual UltraTEV Plus+ detecting instrument processing.
As shown in Figure 7, this electrical equipment discharge examination simulator is as follows to the process that virtual device carries out the emulation detection by virtual UltraTEV Plus+ detecting instrument: (1) chooses the virtual detection instrument with mouse, then clicks the power supply that power knob is opened detecting instrument.Press ' power key ', if detecting instrument is in off-mode, then detecting instrument enters open state, and test pattern is shown as the voltage tester pattern.If detecting instrument is in open state, then detecting instrument enters the off-mode liquid crystal display without any demonstration, and test pattern is set to off working state.(2) before the detection beginning, at first detect and record the interference indicating value of environmental background, that is: with the equipment such as dummy metal metallic door/window in the mouse click virtual detection scene unit, the indicating value of record background interference.When (3) liquid crystal display is shown as the voltage tester pattern, press ' upper key ' or ' lower key ', test pattern enters preference pattern, and liquid crystal display shows ' voltage tester pattern ' and ' ultrasonic investigation pattern ' two row word, and choose ' voltage tester pattern ' OK.With the virtual local discharge switch cabinet in the mouse click virtual detection scene unit, the scene automatic roaming is arrived before the selected virtual local discharge switch cabinet, and simultaneously, detecting instrument shows the indicating value that current detection arrives.When (4) liquid crystal display is shown as the ultrasonic investigation pattern, press ' upper key ' or ' lower key ', test pattern enters preference pattern, and liquid crystal display shows ' voltage tester pattern ' and ' ultrasonic investigation pattern ' two row word, and choose ' ultrasonic investigation pattern ' OK.Under the ultrasound examination pattern, the gap location of virtual local discharge switch cabinet cabinet is shown in red, and prompting can only detect at gap location.Click the interstitial site of virtual local discharge switch cabinet with mouse, the scene automatic roaming is arrived before the selected virtual local discharge switch cabinet, and simultaneously, detecting instrument shows the indicating value that current detection arrives.(5) test pattern is when preference pattern, presses ' upper key ' or ' lower key ', if current choose be ' voltage tester pattern ' OK, then ' ultrasonic investigation pattern ' is capable selected; If current choose be ' ultrasonic investigation pattern ' OK, then ' voltage tester pattern ' row selected.(7) test pattern is pressed " acknowledgement key " when preference pattern, if current choose be ' voltage tester pattern ' OK, then test pattern enters ' voltage tester pattern '; If current choose be ' ultrasonic investigation pattern ' OK, then test pattern enters ' ultrasonic investigation pattern '.(6) test pattern is pressed " acknowledgement key " when the voltage tester pattern, then obtains voltage-to-ground and measures indicating value and show at liquid crystal display.(7) test pattern is pressed " acknowledgement key " when the ultrasonic investigation pattern, then obtains to the ultrasonic measurement indicating value and at liquid crystal display to show.(8) after the indicating value that the demonstration current detection arrives, eject a test result assessment interface, prompting detection person assesses the state of electrical equipment.
In sum, the present invention adopts virtual reality technology to develop the virtual work environment of high fidelity, has greatly improved the sense of reality of virtual detection process.Utilize the present invention, can realize virtual unit and the virtual instrument of total digitalization, can according to different training needs, set up different virtual detection scenes, the training contents of enriching constantly.
The above has been described in detail electrical equipment discharge examination simulator and its implementation based on virtual reality provided by the present invention.For one of ordinary skill in the art, any apparent change of under the prerequisite that does not deviate from connotation of the present invention it being done all will consist of infringement of patent right of the present invention, will bear corresponding legal liabilities.
Claims (8)
1. electrical equipment discharge examination simulator based on virtual reality is characterized in that comprising:
Virtual detection scene unit, virtual Partial Discharge Detection unit, partial discharges fault simulation unit, virtual detection process control unit;
Described virtual detection scene unit analog physical testing environment;
Described virtual Partial Discharge Detection unit reads the fault model in the described partial discharges fault simulation unit, intends testing described virtual detection scene unit and showing by the sequence of operation exterior deficiency of virtual detection process control unit.
2. electrical equipment discharge examination simulator as claimed in claim 1 is characterized in that described virtual detection scene unit comprises dummy metal door/window and virtual local discharge switch cabinet.
3. electrical equipment discharge examination simulator as claimed in claim 1 is characterized in that described virtual Partial Discharge Detection unit is virtual UltraTEV Plus+ detecting instrument.
4. the Simulation Methods based on the described electrical equipment discharge examination of any one in the claim 1～3 simulator is characterized in that comprising the steps:
Set up virtual device, virtual Partial discharge detector device and partial discharges fault model;
Read in the parameter of virtual device, virtual Partial discharge detector device and partial discharges fault model, generate the virtual detection scene unit for local discharge of electrical equipment, produce the analogue measurement indicating value of partial discharge of switchgear fault;
Carrying out shelf depreciation in virtual scene detects online acquisition emulation detection data and shows detected value, the analytical test result.
5. Simulation Methods as claimed in claim 4 is characterized in that, described partial discharges fault model is measured indicating value and set up according to background value, equipment running status, typical case.
6. Simulation Methods as claimed in claim 4 is characterized in that, described analogue measurement indicating value comprises: shelf depreciation ultrasonic measurement indicating value and shelf depreciation ultrasonic measurement indicating value;
Described analogue measurement indicating value is calculated by following formula:
Shelf depreciation ultrasonic measurement indicating value=A+(B-A) * RAND ();
Shelf depreciation ultrasonic measurement indicating value=C+(D-C) * RAND ();
Wherein, [A, B] is the span that the shelf depreciation voltage-to-ground is measured indicating value under the current running status of switch cubicle, and [C, D] is the span of shelf depreciation ultrasonic measurement indicating value under the current running status of switch cubicle.
7. Simulation Methods as claimed in claim 4 is characterized in that, the described shelf depreciation of carrying out in virtual scene detects online, and the step that obtains emulation detection data further comprises:
Read in the sequence of operation of virtual local discharge switch cabinet Partial Discharge Detection, set up sequence of operation tabulation;
The virtual detection scene unit receives user operation case, and the virtual detection process control unit judges according to the sequence of operation whether the current operation event can be carried out;
If the current operation event of Action Events and the sequence of operation is inconsistent, then abandon Action Events;
If Action Events is identical with the current operation event of the sequence of operation, then concrete operations object handles user operation case and the current operation event cumulative according to Action Events goes on foot.
8. Simulation Methods as claimed in claim 7 is characterized in that, the step of described concrete operations object handles user operation case according to Action Events further comprises:
If the operand of Action Events is to select virtual device, then Action Events returns to the processing of virtual detection scene unit, is set to selected state by the virtual device in the virtual detection scene unit Action Events;
If the operand of Action Events is the button of virtual Partial discharge detector device, then Action Events passes to virtual Partial Discharge Detection cell processing.
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| CN2013102155036A CN103353847A (en) | 2012-12-24 | 2013-05-31 | Simulation device for electrical equipment discharge detection based on virtual realization and realization method thereof |
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