CN102073609B - Virtual instrument technology-based test method of power system test instrument and application thereof to integrated automatic device and synchronous detection device - Google Patents
Virtual instrument technology-based test method of power system test instrument and application thereof to integrated automatic device and synchronous detection device Download PDFInfo
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Abstract
The invention discloses a virtual instrument technology-based test method of a power system test instrument and application thereof to an integrated automatic device and a synchronous detection device. In a structural system consisting of an upper computer and a low computer, the working performance of the upper computer and the low computer is brought into full play, functional expansion is further promoted and limited low computer resources can be fully utilized. The method comprises the following steps that: a test software module is selected in the upper computer according to a functional requirement; the upper computer partitions a program in the upper computer into a real-time program, a quasi-real-time program and a non-real-time program according to a partition program; the upper computer transmits the real-time program to the lower computer, the lower computer receives the real-time program and the real-time program takes over a digital signal processor (DSP) microprocessor and controls the DSP microprocessor to run; the upper computer makes calculation in alignment with the real-time program and the non-real-time program; the lower computer processes various external real-time information and calculates the real-time program; the upper computer transmits a calculation result to the lower computer according to a command of a transmission command program and exchanges data with the lower computer; and the lower computer makes response to the command of the upper computer and executes the command.
Description
Technical field
The present invention relates to a kind of method of testing, and combining from device (comprehensive automation device) and the application process on same period pick-up unit for the electric system testing tool that contains virtual instrument technique.
Background technology
Virtual instrument (Vis μ al Instr μ ctions) technology is the product that modem computer systems and instrument system technology combine, and is an important technology in computer nowadays subtest (CAT) field.It is promoting traditional instrument and is developing towards intellectuality, modularization, virtual, networked direction.Along with the develop rapidly of the scale and the technical merit of electric system, be to ensure power system security operation reliably and obtain higher economic benefit, the parameter kind and the project that in production divisions such as generating plant, electric substation, require to monitor also get more and more.And traditional surveying instrument is in analysis-by-synthesis, assessment to measured parameter, message exchange with the aspect such as share and exist serious defective.Virtual measurement instrument based on the microcomputer hardware platform obtains application more and more widely in many departments at present.
At present, utilize the LabView platform of the main employing NI company of virtual instrument technique development and testing equipment in the electric system.The LabView platform has good graphical interfaces, powerful function library etc.But it also has some shortcomings, and most importantly real-time is not high, though the user can be optimized the exigent subprogram code of real-time, its efficient is because the non real-time property of Windows operating system can not reach real-time requirement fully.And a lot of requirements have Transient-State Analysis of Power System in the electric system testing apparatus, and this requires very high to real-time.
For satisfying the requirement of this high real-time, a lot of power test equipment have adopted special hardware to add some real time operating systems modes such as (like VxWorkss).But this has deviated from the original intention of virtual instrument (Vis μ al Instr μ ctions) technology again; Make that the upgrade maintenance of instrumentation is very inconvenient; And function singleness and defectiveness; For example do not have enough spaces to come reservoir data, display process result in real time is because the defective of specialised hardware circuit aspect multiplication and division has to reduce computational accuracy etc.
Summary of the invention
The present invention is directed to above problem; Provide a kind of in upper and lower machine structural system; Give full play to both serviceabilitys, and then help function expansion, and can make full use of the method for testing based on the electric system testing tool of virtual instrument technique of limited slave computer resource.
In addition, the present invention also provides the application of preceding method on the comprehensive automation device, and surveys the application on the pick-up unit in the same period.
Method of testing of the present invention is: said electric system testing tool comprises host computer and slave computer;
Said host computer adopts PC, contains the storer that stores electric system testing software module among the said PC;
Said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit, and said DSP microprocessor has internal memory;
Adopt pci bus to link to each other between said host computer and the slave computer;
Also include the transfer instruction program of judging each program, data-transmission mode by the partition program of each program property of time characteristic division with by the result of partition program in the storer of said host computer PC;
Exist original state vacant in the twoport internal memory of said slave computer and the slave computer DSP microprocessor;
All working procedures of DSP microprocessor all download in the PC test process in the internal memory of said DSP microprocessor, and the internal memory of said DSP microprocessor returned to initial vacant state after test was accomplished;
Said method of testing is carried out as follows:
1), in host computer, selects the testing software module according to functional requirement;
2), host computer is real-time program, quasi real time program and non real-time program according to partition program with the procedure division in the host computer;
Said real-time program is: system makes the program of response to specific incident in less than 1ms;
Said quasi real time program is: system makes the program of response to specific incident at 1ms to 10s;
Said non real-time program is: the program of not having corresponding time requirement;
3-1), host computer is transferred to slave computer with real-time program, after slave computer received real-time program, this real-time program was taken over the DSP microprocessor, controls its operation;
3-2), host computer is aimed at real-time program, the non real-time program is calculated;
3-3), slave computer is handled outside various real-time information and real-time program calculating;
4), host computer is transferred to slave computer with result of calculation by the instruction of transfer instruction program, and with the slave computer swap data;
5), slave computer responds the instruction of host computer, and carries out.
Described electric system testing tool also comprises the GPS communication device that is used between host computer and slave computer, carrying out telecommunication.
The present invention in the application technology scheme in the comprehensive automation device is: the electric system testing software module in the said comprehensive automation device in the internal memory of host computer comprises the device communication; Remote control; Remote measurement; Action event; The incident snowslide; The remote signalling response time; Pulsed quantity; Alternating current-direct current six tunnel outputs; Status switch; Three-phase and six phase are differential; Alternation output; Voltage protection; Current protection; Press off lock and power direction again; Lock-on relay; Direct current and auxiliary reclay; The fault playback; Frequency test; The UFLS definite value; The UFLS time-delay; Low all slippage locking values; The low-voltage lockout definite value; Time response; The test same period; System oscillation; Route protection; Harmonic test; The harmonic wave stack; Total group test; Impedance operator; The failure wave-recording appearance; The high accuracy number multimeter; Harmonic analysis instrument and dual channel oscilloscope test module.
The application technology scheme of the present invention in same period pick-up unit is: the electric system testing software module in the said same period pick-up unit in the internal memory of host computer comprises the difference frequency whole group same period, with the same period, breaker closing time, the locking of pressure reduction bound, the locking of frequency difference bound, asynchronous switch-on pulsewidth, pressure regulation pulsewidth and frequency modulation pulsewidth test module frequently.
The present invention divides between treatment region according to time response, combines the layering of upper and lower computer to calculate, and then the not high method of testing based on the electric system testing tool of virtual instrument technique of solution real-time.It has adopted the thorough isolation technics of system's slave computer software and hardware, helps function expansion, makes full use of limited slave computer resource, makes that the response of system is more timely, and data-handling efficiency is higher.At last, the present invention also utilizes mechanics of communication and tested device to carry out data communication, controls tested device and obtains test result, has realized automatic test, has avoided the human operational error, improves testing efficiency.The present invention has realized the characteristics of the high-speed real-time of proprietary instrument, and the intellectuality of general virtual instrument is also arranged, powerful, easy to maintenance characteristics.Analysis-by-synthesis, assessment have been solved, the problem of message exchange and aspects such as sharing to measured parameter.Powerful record wave analysis and online demonstration measuring ability are for example arranged.
Description of drawings
Fig. 1 is a fundamental diagram of the present invention
Fig. 2 is the process flow diagram of method of testing of the present invention
Fig. 3 is a principle of work block diagram of the present invention
Fig. 4-the 1st, the present invention are applied in the theory diagram in the transient analysis
Fig. 4-the 2nd, background technology of the present invention is applied in the theory diagram in the transient analysis
Fig. 5-the 1st, the present invention are applied in the theory diagram in the fault playback
Fig. 5-the 2nd is applied in the theory diagram in the fault playback in the background technology of the present invention
Fig. 6-the 1st, the synoptic diagram of functional software framework form when the present invention works
Fig. 6-the 2nd, the synoptic diagram of functional software framework form in the background technology of the present invention
Embodiment
The present invention is like Fig. 1,2, shown in 3, and said electric system testing tool comprises host computer and slave computer;
Said host computer adopts PC, contains the storer that stores electric system testing software module among the said PC;
Said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit, and said DSP microprocessor has internal memory;
Adopt pci bus to link to each other between said host computer and the slave computer;
Also include the transfer instruction program of judging each program, data-transmission mode by the partition program of each program property of time characteristic division with by the result of partition program in the storer of said host computer PC;
The twoport internal memory and the slave computer DSP microprocessor of said slave computer are vacant in original state;
All working procedures of DSP microprocessor all are that PC downloads in test process in the internal memory of said DSP microprocessor, and the internal memory of said DSP microprocessor returned to initial vacant state after test was accomplished;
Said method of testing is carried out as follows:
1), in host computer, selects the testing software module according to functional requirement;
2), host computer is real-time program, quasi real time program and non real-time program according to partition program with the procedure division in the host computer;
Said real-time program is: system makes the program of response to specific incident in less than 1ms; The program that promptly must in less than 1ms, respond to specific incident (timer, external interrupt, pulse etc.).For example in the D/A output waveform program, require every 20ms to export 2000 points, timer is set to 10 μ s, and this program must can not be missed one at timer of per 10 μ s response, and the time error maximum can not 10 μ s; If timer sends 10 μ s behind the signal, not response or do not handle of program will influence output, and it is irregular that output waveform becomes.
Said quasi real time program is: system makes the program of response to specific incident at 1ms to 10ms; Consistent with top real-time program definition in fact, unique difference is that time restriction is 1ms to 10ms, and this program is harsh unlike real-time program to the time response of incident.But quasi real time also have time restriction, if quasi real time program do not respond also can be influential to system.For example slave computer sends data to host computer, and the time restriction of host computer is 1ms, and slave computer is that regularly 100 μ s (very accurate) send interrupt request to host computer; Host computer can be missed or delayed response; As long as at 1ms with interior just passable, ten interruptions (0 μ s, the 100 μ s that send continuously of slave computer just; 200 μ s ...) in, one of them is just passable as long as host computer can respond; If host computer postpones to respond one of them again behind the 1ms, the data in its slave computer twoport internal memory are not the data that this interruption is sent, but the data that next group (ten) interrupts, will produce data error.
Said non real-time program is: the program of not having corresponding time requirement; This program is exactly that its operation and operating lag have produced not influence to system; Print routine for example, the speed of its speed even printer fault can not produce test result and disturb.
3-1), host computer is transferred to slave computer with real-time program, after slave computer received real-time program, this real-time program was taken over the DSP microprocessor, controls its operation;
3-2), host computer is aimed at real-time program, the non real-time program is calculated;
3-3), slave computer is handled outside various real-time information and real-time program calculating;
4), host computer is transferred to slave computer with result of calculation by the instruction of transfer instruction program, and with the slave computer swap data;
5), slave computer responds the instruction of host computer, and carries out.
Described electric system testing tool also comprises the GPS communication device that is used between host computer and slave computer, carrying out telecommunication.
The present invention in the application technology scheme in the comprehensive automation device is: the electric system testing software module in the said comprehensive automation device in the internal memory of host computer comprises the device communication; Remote control; Remote measurement; Action event; The incident snowslide; The remote signalling response time; Pulsed quantity; Alternating current-direct current six tunnel outputs; Status switch; Three-phase and six phase are differential; Alternation output; Voltage protection; Current protection; Press off lock and power direction again; Lock-on relay; Direct current and auxiliary reclay; The fault playback; Frequency test; The UFLS definite value; The UFLS time-delay; Low all slippage locking values; The low-voltage lockout definite value; Time response; The test same period; System oscillation; Route protection; Harmonic test; The harmonic wave stack; Total group test; Impedance operator; The failure wave-recording appearance; The high accuracy number multimeter; Harmonic analysis instrument and dual channel oscilloscope test module.
The application technology scheme of the present invention in same period pick-up unit is: the electric system testing software module in the said same period pick-up unit in the internal memory of host computer comprises the difference frequency whole group same period, with the same period, breaker closing time, the locking of pressure reduction bound, the locking of frequency difference bound, asynchronous switch-on pulsewidth, pressure regulation pulsewidth and frequency modulation pulsewidth test module frequently.
Following further explain principle of the present invention:
The upper and lower computer layering computing technique of one, dividing according to time response
The inventive method test platform at first adopts principal and subordinate's machine mechanism of DSP+PC machine; The PCI bridge has been adopted in the connection of principal and subordinate's machine; The real-time processing and the fault-tolerant design of the enterprising row communication of hardware and software, system can satisfy the high real-time designing requirement of electric system, has made full use of the powerful processing power of PC again.System adopts the master-slave structure of PC+DSP, fully combines the advantage of PC and DSP.The DSP computing velocity is fast, but resource is few on the sheet, function singleness, and real-time is good; PC is powerful, but can not guarantee real-time.So the real-time processing section of system, the for example stable output of the high-speed real-time sampling of A/D, D/A, the real-time calculation and analysis program of the acceptance of GPS, Digital I sampling output and customer requirements is all in DSP; And the data after the DSP computational analysis can send PC at a high speed to through the PCI bridge, let PC handle inventory analysis and the demonstration etc. of the calculating of some complex models, big data.
Pci bus is adopted in the connection of principal and subordinate's machine, rather than the USB or the serial ports of general instrument.Pci bus can provide high data transfer rate (132MB/s).Pci bus and CPU are irrelevant, and be also irrelevant with clock frequency, applicable to various platforms, supports multiprocessor and concurrent work.Pci bus also has good extendability, can allow expansion through the PCI-PCI bridge.
During dividing, the time response of system thinks real-time program to the calculating section that must below 1ms, respond; The above real-time response of 1ms is thought " quasi real time " program; The time no requirement (NR) be non-real-time program.Real-time program must be handled at DSP, and program was placed in the PC and calculated " quasi real time ", also can be in DSP.Concrete principle is following:
DSP with respect to the PC computing power a little less than, but owing to be single task system, good real-time can be arranged, can reach the timing response of μ s level; PC is compared powerful with DSP, but because the windows system is the multitask system of branch " timeslice ", but can not guarantee time of day response message in regulation.Be exactly that the work that PC can be done in a stipulated time is more much more than DSP specifically, computing power is a difference on the order of magnitude, but DSP can guarantee your requirement of time of day response in regulation; And PC can not guarantee, if this free time in moment can respond you, if other tasks are arranged, must handle well more earlier and responds.If the user amplifies this in time interval, reach 1ms, 10ms, then also can guarantee real-time through the program design PC, fault-tolerant processing has in addition reached real-time requirement, definition that Here it is " quasi real time " again.
Utilize this characteristics system to adopt " quasi real time " scheme, the timed sending of DSP slave computer is interrupted to the Windows system (this time interrupts being generally 100 μ s less than 1ms), and each data of sending are kept in the internal memory.Because it is powerful that PC is compared with DSP,, just can handle the data of tens even tens DSP transmissions as long as can respond once.Therefore as long as Windows 10 secondary responses in 1ms once just can be handled real-time information, accomplish " quasi real time " response.
Such benefit can be come comparison through following two examples:
1) in the transient analysis of analyzing electric system, the time of failure section is required very accurate, thisly accurately comprise two aspects: the one, it is complicated that computation model is wanted, and simulates the actual field state as far as possible, and this requires calculated amount very big; The 2nd, time step length, the waveform of power amplifier output could reflect informative transient state amount like this, this also is to have increased calculated amount, has improved real-time requirement.
On DSP, the computing power of DSP is limited to the calculating section of general test appearance entirely, have in both balances, even two is simplified entirely, and the waveform of output can not reflect the actual field state.
Just overcome above problem among the present invention.The computing power of PC is very strong, and the length of complicated calculations model and time step is not problem, can calculate the perfect waveform that meets the actual field state, in 1ms, sends to DSP to these data, has been exported just in real time by DSP.Specifically shown in Fig. 4-1,4-2, parameter is step-length 10 μ s, and Fig. 4-2 is conventional (background technology) test macro.Fig. 4-1 is a test macro of the present invention.
2) in the electric power system fault playback, just come out the data of scene record ripple through real-time reproduction, these data are often very big; The conventionally test instrument is all to be placed on these data on the dsp board; Coming out through the DSP real-time playback,, having to its data are deleted because storage resources is limited on the dsp board; Customer analysis has been brought very big problem, even can't playback; And employing the inventive method, the then restriction of no datat size just can pay a return visit out as long as can copy on the PC in theory.Shown in Fig. 5-1,5-2: Fig. 5-2 is the conventionally test system, and Fig. 5-1 is the present invention.
Two, the thorough isolation technics of slave computer software and hardware
The functional software of system is all on PC; System can download to the real-time part of program among the DSP automatically behind the each run; The software and hardware of system is relatively independent, i.e. the expansion of software function and upgrading need not to revise hardware, and the modification of hardware components upgrading does not influence software yet.
Conventional testing tool partly waits calculating and control and treatment the main program programming on the dsp board card, and once the startup that powers on, PC sends to DSP to the parameter instruction that some users are provided with after the program run, and DSP moves according to parameter instruction.Such benefit is that program design is simple, volume of transmitted data is few; But the problem of bringing is real-time and the non real-time program is all moved on DSP, the wasting of resources, and trouble, function singleness are revised in the upgrading of software.
In native system, there is not main program among the DSP, after powering on, system do not have working procedure among the DSP; All in PC, when the user will test, PC can download to program among the DSP earlier all programs; This program is taken over dsp operation then, withdraws from after the EOP (end of program), and DSP recovers virgin state again.Shown in Fig. 6-1, Fig. 6-2, Fig. 6-the 2nd, the principle of work of background technology, Fig. 6-the 1st, the present invention.
Four benefits are arranged like this:
1. the user can reduce program, only sends to the real-time part that will test among the DSP, has significantly reduced its resource consumption, has improved efficient; When particularly the test function unit is a lot,, not only can consume its valuable storage resources if all download among the DSP; Particularly resource in the sheet is not stopped the locating function unit in the time of can being allowed to condition at operation yet, lowers efficiency greatly; And adopt this technology, it is little to occupy memory headroom
2. the function expansion is convenient, can flexible replacing functional unit be set according to the user.The user wants expanded function or modification, upgrade function unit as long as changed the calculation procedure on the PC, need not to change any hardware.
3. the optimization process of real-time software because the committed memory space is little, under the prerequisite of equal resource, can obtain higher efficient.For example because program is little, can originally can only be slower sheet outside the data of internal memory calculating be put into fireballing internal memory.
4. the optimization of computation of table lookup
Can consume a large amount of computing times when calculating function such as sine among the DSP, therefore general DSP calculates and has look-up table, especially in electric system; Be about to a function and be divided into some five equilibriums, be kept in the internal memory formation function table; Directly look into the data in the function table during calculating, saved computing time.It is thin more that function table divides, and the space is big more, will practice thrift computing time more, improves computational accuracy.Can be stored in the twoport internal memory such as these data; In addition, the twoport internal memory can also be stored some instructions, executive routine.
Different test cells has different functions; Therefore a lot of different function tables must be arranged; Even user's different parameter settings just has different function tables in program, and general testing tool equally also can be placed on whole function tables on the dsp board owing to be placed on calculation procedure entirely on the dsp board; So just have much in current test cell, use less than a large amount of function tables exist on the dsp board, taken resource greatly.
And each among the present invention only can be according to customer parameter and special function table and calculation procedure downloads in the dsp board together, resource occupation is little.Because in each current test cell, have only the function table relevant with this unit, the available space of this function table is equivalent to the whole function table occupation space of general test instrument, and this function table can be got carefullyyer like this, improves computational accuracy.
And this function table can combine with the parameter that the user is provided with, and calculated by PC and redispatches down.The function table of conventionally test appearance all is to be kept in advance in the dsp board, can only combine with user's parameter in DSP, to calculate in real time, and efficient can be much lower.
Three and tested device carry out data communication technology
Now tested electric system device is also more and more intelligent, and the parameter setting outside it is accepted through communication interface (serial ports, network etc.) also can send real time data.
Its inside has comprised the detecting information of a lot of test macro needs.For example, just measure the resistance value of tested protection at the testing impedance of test protective device.Whether the general test instrument can only obtain information actuation time of tested protective device through node, and does not know the concrete resistance value of tested protection, mainly be to be met the demands through analyzing its impedance actuation time by the user.And just have these test result data in the tested protective device.
And now apparatus of the present invention can with tested protective device communication, just can obtain the advantage of two aspects, make measuring technology obtain a leap:
1) obtain detailed test data, for example in the testing impedance, just can obtain the concrete impedance of its action, and with analyzing the actuation time that obtains, draw automatically the most accurately and judge, and the sum of errors that has reduced artificial analysis is raised the efficiency from tested device.
2) reduced test errors.
For example test macro can be exported the impedance (impedance=voltage/current) that big electric current and little voltage are tested tested protection in testing impedance; But general tested protective device has multicriterion and moves, when electric current is big, tend to think earlier electric current too big (overcurrent) send out trip signal automatically earlier; And the trip signal of can computing impedance not redispatching; Be overcurrent actuation time the actuation time that test macro obtains, and non-impedance actuation time is for avoiding this state; The user must turn off earlier by elder generation's overcurrent step switch tested protection before test, and test is opened after accomplishing again.The user tends to occur forgetting and turns off or mistake such as open, causes test errors.
Earlier through data communication technology, test macro is controlled tested device automatically before test, send to close parameter instruction and turn off the action of the overcurrent of tested protection, and the OPEN of redispatching after the test completion, this has been avoided the manual operation mistake fully.
Concrete testing procedure of the present invention is for example following:
Comprise host computer and slave computer like certain electric system testing tool, said host computer adopts PC, and said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit; Adopted pci bus to link to each other between host computer and the slave computer; Host computer and tested device carry out real-time communication and tested device forms closed-loop system, the automatic test of finishing device.
Carry out according to following steps then:
1), test procedure of the present invention (program of upper and lower computer) all is stored in the host computer PC; System testing program comprises a lot of single test cells, for example just comprises tens test cells (various relay tests, harmonic wave test, low-frequency load reduction, low pressure off-load, system oscillation or the like) in a protection test macro.
2) user connects this test macro and tested device to voltage, the magnitude of current, switching value earlier on request, and connects serial ports or network by the communication need of equipment.
3) test macro and tested device data communication set or obtain the various parameters of tested device, prevent that test macro and tested device parameter are inconsistent.
4), after the system operation, the user gets into certain test cell.For example select " low-frequency load reduction " project, the user sets the various parameters of test; The slave computer execution that computer control system is searched this unit automatically reads in this document data, and downloads in the dsp chip of bottom through pci bus, and dsp chip gets into test mode according to this document data, and initiation parameter is also waited for operational factor;
5) slave computer is given tested device in the D/A of outputting high quality data through power amplifier, comprises fault current, voltage and aperiodic component etc., can react operation, the failure condition of practical power systems really; After device being tested receives failure message; Fault judged selects correct operation that testing software closes signal and judges down the system state in step for the moment according to new system model topological structure through step-length in the time interval, the jumping of gathering system to be tested; The electric system of tested protective device and institute's emulation constitutes the test closed loop.
Slave computer acceptance and output, the various signals of gathering can send to host computer and preservation through PCI bridge real time high-speed, prepare against user's ex-post analysis.
After test was accomplished, host computer obtained test result, and passed through serial ports or network communication with tested device, obtained the information of tested device, and the two is analyzed and provides complete test report.
At last:
Be applied in and combine in the self-test, because the optimization of system, computing power is strong, and output is counted close, and real-time is good, can satisfy the transient characterisitics output of protection test and the stable state accuracy requirement of supervising device simultaneously; Owing to adopted virtual instrument technique based on PC, can conveniently use serial ports or network and tested device communication, realized combining autorun certainly.
Be applied in the synchronous device, except accomplishing conventional functional test, also have powerful record wave analysis function, make things convenient for the onsite user to analyze the synchronous device problem; All right and tested synchronous device real-time communication of while is used for being provided with parameter and reader unit result, realizes the automatic test of synchronous device, reduces personal error and interference, the raising test accuracy.
Claims (4)
1. based on the method for testing of the electric system testing tool of virtual instrument technique,
Said electric system testing tool comprises host computer and slave computer;
Said host computer adopts PC, contains the storer that stores electric system testing software module among the said PC;
Said slave computer comprises DSP microprocessor, twoport internal memory and interface circuit, and said DSP microprocessor has internal memory;
Adopt pci bus to link to each other between said host computer and the slave computer;
It is characterized in that: also include the transfer instruction program of judging each program, data-transmission mode by the partition program of each program property of time characteristic division with by the result of partition program in the storer of said host computer PC;
Exist original state vacant in the twoport internal memory of said slave computer and the slave computer DSP microprocessor;
All working procedures of DSP microprocessor all download in the PC test process in the internal memory of said DSP microprocessor, and the internal memory of said DSP microprocessor returned to initial vacant state after test was accomplished;
Said method of testing is carried out as follows:
1), in host computer, selects the testing software module according to functional requirement;
2), host computer is real-time program, quasi real time program and non real-time program according to partition program with the procedure division in the host computer;
Said real-time program is: system makes the program of response to specific incident in less than 1ms;
Said quasi real time program is: system makes the program of response to specific incident at 1ms to 10s;
Said non real-time program is: the program of not having corresponding time requirement;
3-1), host computer is transferred to slave computer with real-time program, after slave computer received real-time program, this real-time program was taken over the DSP microprocessor, controls its operation;
3-2), host computer is aimed at real-time program, the non real-time program is calculated;
3-3), slave computer is handled outside various real-time information and real-time program calculating;
4), host computer is transferred to slave computer with result of calculation by the instruction of transfer instruction program, and with the slave computer swap data;
Said swap data is: the data of said slave computer after with computational analysis send said host computer to through the PCI bridge, by the calculating of said host computer dealing with complicated model, the inventory analysis and the demonstration of big data;
5), slave computer responds the instruction of host computer, and carries out;
Said response and being implemented as: slave computer receives and output, the various signals gathered can send to host computer and preserve through said pci bus real time high-speed, in order to user's ex-post analysis;
After test was accomplished, host computer obtained test result, and passed through serial ports or network communication with tested device, obtained the information of tested device, and the two is analyzed and provides complete test report.
2. the method for testing of the electric system testing tool based on virtual instrument technique according to claim 1 is characterized in that described electric system testing tool also comprises the GPS communication device that is used between host computer and slave computer, carrying out telecommunication.
3. the application of the said method of testing of claim 1 in the comprehensive automation device; It is characterized in that the electric system testing software module in the said comprehensive automation device in the internal memory of host computer comprises device communication, remote control, remote measurement, action event, incident snowslide, remote signalling response time, pulsed quantity, alternating current-direct current six tunnel outputs, status switch, three-phase and six phase is differential, alternation output, voltage protection, current protection, press off lock and power direction, lock-on relay, direct current and auxiliary reclay, fault playback, frequency test, UFLS definite value, UFLS time-delay, low all slippage locking values, low-voltage lockout definite value, time response, the test same period, system oscillation, route protection, harmonic test, harmonic wave stack, total group test, impedance operator, failure wave-recording appearance, high accuracy number multimeter, harmonic analysis instrument and dual channel oscilloscope test module again.
4. the described method of testing of claim 1 application in same period pick-up unit; It is characterized in that the electric system testing software module in the said same period pick-up unit in the internal memory of host computer comprises the difference frequency whole group same period, with the same period, breaker closing time, the locking of pressure reduction bound, the locking of frequency difference bound, asynchronous switch-on pulsewidth, pressure regulation pulsewidth and frequency modulation pulsewidth test module frequently.
Priority Applications (1)
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| CN102680756B (en) * | 2012-06-05 | 2015-07-08 | 优利德科技(中国)有限公司 | Electronic measurement method and device with compound functions |
| CN103929338B (en) * | 2014-03-28 | 2017-05-24 | 国家电网公司 | IED logic states real-time response capacity detecting method based on physical layer information |
| CN104391190B (en) * | 2014-10-10 | 2017-07-11 | 中国电子科技集团公司第四十一研究所 | A kind of remote diagnosis system and diagnostic method for measuring instrument |
| CN105762928B (en) * | 2014-12-15 | 2019-07-26 | 国家电网公司 | A kind of energy-accumulating power station monitoring system |
| CN104698317A (en) * | 2015-03-11 | 2015-06-10 | 南京大全自动化科技有限公司 | Virtual tester of automation device |
| CN105677560B (en) * | 2015-12-31 | 2018-07-03 | 北京经纬恒润科技有限公司 | A kind of test method, apparatus and system |
| CN109031157A (en) * | 2018-07-06 | 2018-12-18 | 中国航空综合技术研究所 | A kind of power supply test plateform system for testability demonstration test |
| CN109142933A (en) * | 2018-09-12 | 2019-01-04 | 南京国电南自电网自动化有限公司 | Power automatic device method for testing reliability, system and equipment based on HALT and LabVIEW |
| CN109342848B (en) * | 2018-09-29 | 2022-01-25 | 国网河北省电力有限公司电力科学研究院 | Avalanche testing method and system for dispatching automation master station and terminal equipment |
| CN110596494A (en) * | 2019-09-25 | 2019-12-20 | 中国标准化研究院 | Automatic detection device and detection method for electrical appliance safety |
| CN113759245B (en) * | 2021-09-14 | 2024-06-21 | 许昌开普检测研究院股份有限公司 | Relay protection static mode test and dynamic mode test method based on unified hardware platform |
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| CN101241155A (en) * | 2007-02-09 | 2008-08-13 | 扬州奥瑞科技有限公司 | Electric power apparatus integrated automated detection system |
| CN101271139A (en) * | 2008-05-19 | 2008-09-24 | 福建亿榕信息技术有限公司 | High-precision switching value detecting instrument and detecting method |
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| CN101241155A (en) * | 2007-02-09 | 2008-08-13 | 扬州奥瑞科技有限公司 | Electric power apparatus integrated automated detection system |
| CN101271139A (en) * | 2008-05-19 | 2008-09-24 | 福建亿榕信息技术有限公司 | High-precision switching value detecting instrument and detecting method |
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