CN103344856A - Method and device for testing merging unit - Google Patents
Method and device for testing merging unit Download PDFInfo
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- CN103344856A CN103344856A CN2013102564485A CN201310256448A CN103344856A CN 103344856 A CN103344856 A CN 103344856A CN 2013102564485 A CN2013102564485 A CN 2013102564485A CN 201310256448 A CN201310256448 A CN 201310256448A CN 103344856 A CN103344856 A CN 103344856A
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Abstract
The invention discloses a method and device for testing a merging unit. The method is applied to the device, and the method comprises the steps of collecting the parameters of a model currently operated by the merging unit, judging whether the parameters of the currently operated model are consistent with preset model parameters or not, obtaining the instruction that a currently operated model of the merging unit is a correct model if the parameters of the currently operated model are consistent with the preset model parameters, and obtaining the instruction that the currently operated model of the merging unit is a wrong model if the parameters of the currently operated model are not consistent with the preset model parameters. The method can effectively test the communication service in the merging unit.
Description
Technical field
The present invention relates to power domain, particularly a kind of merge cells method of testing and device.
Background technology
Merge cells is visual plant in the digital transformer substation, is the interfacing equipment of the process layer of intelligent substation, and the quality of merge cells performance is directly connected to secondary devices such as protection, metering, measure and control device and wave recording device.Therefore, the test that is combined the unit seems especially important, and at present for all concentrating on the test of accuracy test and time response in the test of merge cells, communication service in the unit tests and be not combined.
Summary of the invention
The invention provides a kind of merge cells method of testing and device, be not combined the problem that the communication service in the unit is tested to solve in the prior art.
Concrete technical scheme is as follows:
A kind of merge cells method of testing, described method comprises:
Gather the model parameter of the current operation of merge cells;
Whether the model parameter of judging described current operation is consistent with the preset model parameter, if, the model that then obtains the current operation of described merge cells is the instruction of correct model, and if not, the model that then obtains the current operation of described merge cells is the instruction of error model.
Preferably, also comprise:
Gather the simulating signal of reference source;
In the time of the simulating signal of described collection reference source, the digital signal of gathering described merge cells;
Described simulating signal and described digital signal are carried out analyzing and processing, obtain test result.
Preferably, described described simulating signal and described digital signal are carried out analyzing and processing, the process that obtains test result comprises:
Described simulating signal and described digital signal are carried out Fourier transform, obtain test result.
Preferably, also comprise:
Record described digital signal due in, calculate described due in and the sampled point starting point mistiming constantly;
Calculate the time interval of neighbouring sample point;
Described mistiming and the described time interval are analyzed, obtained the time response test data.
Preferably, also comprise:
Described test result is shown and store by waveform.
A kind of merge cells proving installation, described device comprises: collector and analyzer;
Described collector is used for, and gathers the model parameter of the current operation of merge cells;
Described analyzer is used for, whether the model parameter of judging described current operation is consistent with the preset model parameter, if the model that then obtains the current operation of described merge cells is the instruction of correct model, if not, the model that then obtains the current operation of described merge cells is the instruction of error model.
Preferably, also comprise: analog signal collector, digital signal acquiring device, synchronous generator and first processor;
Described synchronous generator is used for, and sends synchronous acquisition instructions to described analog signal collector and described digital signal acquiring device;
Described analog signal collector is used for, and receives described synchronous acquisition instructions, gathers the simulating signal of reference source;
Described digital signal acquiring device is used for, and receives described synchronous acquisition instructions, the digital signal of gathering described merge cells;
Described first processor is used for, and described simulating signal and described digital signal are carried out analyzing and processing, obtains test result.
Preferably, also comprise: first counter, second counter and second processor;
Described first counter is used for, and records described digital signal due in, calculates described due in and the sampled point starting point mistiming constantly;
Described second counter is used for, and calculates the time interval of neighbouring sample point;
Described second processor is used for, and described mistiming and the described time interval are analyzed, and obtains the time response test data.
Preferably, also comprise: display-memory;
Described display-memory is used for, and described test result is shown in the mode of waveform and stores.
As can be seen from the above technical solutions, the invention provides a kind of merge cells method of testing and device, described method is applied in the described device, described method comprises: the model parameter of gathering the current operation of merge cells, whether the model parameter of judging described current operation is consistent with the preset model parameter, if, the model that then obtains the current operation of described merge cells is the instruction of correct model, if not, the model that then obtains the current operation of described merge cells is the instruction of error model, and the method can effectively be tested the communication service in the described merge cells.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in invention or the description of the Prior Art below, apparently, the accompanying drawing that describes below only is some embodiment that put down in writing among the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the embodiment of the invention one disclosed a kind of merge cells method of testing schematic flow sheet;
Fig. 2 is the embodiment of the invention two disclosed a kind of merge cells method of testing schematic flow sheets;
Fig. 3 is the embodiment of the invention three disclosed a kind of merge cells method of testing schematic flow sheets;
Fig. 4 is the embodiment of the invention four disclosed a kind of merge cells proving installation structural representations;
Fig. 5 is the embodiment of the invention five disclosed a kind of merge cells proving installation structural representations;
Fig. 6 is the embodiment of the invention six disclosed a kind of merge cells proving installation structural representations.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to protection scope of the present invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention one discloses a kind of merge cells method of testing, and referring to shown in Figure 1, described method comprises:
Step S101: the model parameter of gathering the current operation of merge cells;
Wherein, described model parameter is for sending destination address, model identification and sendaisle number;
Step S102: whether the model parameter of judging described current operation is consistent with the preset model parameter, if, execution in step S103 then, if not, execution in step S104 then;
Wherein, described preset model parameter can be transmission destination address, model identification and the sendaisle number that producer provides;
Step S103: the model that then obtains the current operation of described merge cells is the instruction of correct model;
Step S104: the model that then obtains the current operation of described merge cells is the instruction of error model.
Present embodiment discloses a kind of merge cells method of testing, described method comprises: the model parameter of gathering the current operation of merge cells, whether the model parameter of judging described current operation is consistent with the preset model parameter, if, the model that then obtains the current operation of described merge cells is the instruction of correct model, if not, the model that then obtains the current operation of described merge cells is the instruction of error model, whether the model parameter by comparison described merge cells current operation in the described method preset model parameter unanimity, thereby whether the model that can obtain the current operation of described merge cells is the instruction of correct model, so just can realize the communication service in the described merge cells is tested.
The embodiment of the invention two discloses a kind of merge cells method of testing, and referring to shown in Figure 2, described method has also increased following concrete steps on the basis of embodiment one:
Step S201: the simulating signal of gathering reference source;
Wherein, adopt high-precise synchronization collection of simulant signal card, gather the simulating signal of described reference source, described synchronous analog signal capture card has used the aanalogvoltage of high precision clock, high-operational amplifier and ADC, current signal to sample, sampling rate was 10000 point/seconds, maximum measuring voltage is 100V, the full test electric current is 5A, described capture card can conversion compensates to AD automatically according to different environment temperatures, thereby the influence of having avoided temperature to float, also have in addition from steady zero, ADC self-correcting etc. guarantee the function of measuring accuracy;
Step S202: in the time of the simulating signal of described collection reference source, the digital signal of gathering described merge cells;
Wherein, described reference source can send simulating signal one the road in described merge cells, after described merge cells receives described simulating signal, can produce corresponding digital signal, described digital signals format comprises: forms such as 61850-9-1,61850-9-2,61850-9-2le, IEC60044-8FT3, state net FT3;
Step S203: described simulating signal and described digital signal are carried out analyzing and processing, obtain test result;
Wherein, described simulating signal and described digital signal are carried out analyzing and processing, use Fourier transform, that is to say;
Suppose that input signal is as follows:
Wherein, x
0---DC component ω
1---fundamental frequency angular frequency.
X
k,
--amplitude and the phase place of-Di k order harmonic components.
The formula that utilizes all-wave Fu formula algorithm to extract fundamental component is:
Utilize described Fourier transformation method that described simulating signal and described digital signal are handled, obtain ratio, differ, data target such as frequency difference, and by waveform described test result is shown intuitively, and can store, to make things convenient for searching of historical data.
Present embodiment discloses a kind of merge cells method of testing, described method is except can realizing embodiment one disclosed test, can also test time characteristic data and the performance data of described merge cells, more fully realize being combined the test of the every performance in unit.
The embodiment of the invention three discloses a kind of merge cells method of testing, and referring to shown in Figure 3, on the basis of embodiment two, described method also comprises:
Step S301: record described digital signal due in, calculate described due in and the sampled point starting point mistiming constantly;
Need to prove, with the absolute delay time of the described mistiming that calculates as described merge cells;
Step S302: the time interval of calculating neighbouring sample point;
Step S303: described mistiming and the described time interval are analyzed, obtained the time response test data.
Present embodiment discloses a kind of merge cells method of testing, recorded described digital signal due in the described method, poor according to described due in and computing time in the sampled point starting point moment, and the time interval of calculating neighbouring sample point, by described mistiming and the described time interval are analyzed, obtain the time response test data, the described time response test data that obtains like this is more accurate.
The embodiment of the invention four discloses a kind of merge cells proving installation, and referring to shown in Figure 4, described device comprises: collector 101 and analyzer 102;
Wherein, described collector 101 is used for, and gathers the model parameter of the current operation of merge cells;
Described model parameter is for sending destination address, model identification and sendaisle number;
Described analyzer 102 is used for, whether the model parameter of judging described current operation is consistent with the preset model parameter, if, the model that then obtains the current operation of described merge cells is the instruction of correct model, if not, the model that then obtains the current operation of described merge cells is the instruction of error model.
Present embodiment discloses a kind of merge cells proving installation, described device comprises: collector and analyzer, wherein, described collector is used for gathering the model parameter of the current operation of merge cells, described analyzer is used for judging whether the model parameter of described current operation is consistent with the preset model parameter, if, the model that then obtains the current operation of described merge cells is the instruction of correct model, if not, the model that then obtains the current operation of described merge cells is the instruction of error model, whether the model parameter by comparing the current operation of described merge cells preset model parameter unanimity, thereby whether the model that can obtain the current operation of described merge cells is the instruction of correct model, so just can realize the communication service in the described merge cells is tested.
The embodiment of the invention five discloses a kind of merge cells proving installation, referring to shown in Figure 5, described device comprises: collector 101, analyzer 102, analog signal collector 103, digital signal acquiring device 104, synchronous generator 105 and first processor 106;
Wherein, described collector 101, analyzer 102 and embodiment three disclosed described collectors 101, analyzer 102 are consistent;
Described synchronous generator 105 is used for, and sends synchronous acquisition instructions to described analog signal collector and described digital signal acquiring device;
Described analog signal collector 103 is used for, and receives described synchronous acquisition instructions, gathers the simulating signal of reference source;
Wherein, adopt high-precise synchronization collection of simulant signal card, gather the simulating signal of described reference source, described synchronous analog signal capture card has used the aanalogvoltage of high precision clock, high-operational amplifier and ADC, current signal to sample, sampling rate was 10000 point/seconds, maximum measuring voltage is 100V, the full test electric current is 5A, described capture card can conversion compensates to AD automatically according to different environment temperatures, thereby the influence of having avoided temperature to float, also have in addition from steady zero, ADC self-correcting etc. guarantee the function of measuring accuracy;
Described digital signal acquiring device 104 is used for, and receives described synchronous acquisition instructions, the digital signal of gathering described merge cells;
Wherein, described reference source can send simulating signal one the road in described merge cells, after described merge cells receives described simulating signal, can produce corresponding digital signal, described digital signals format comprises: forms such as 61850-9-1,61850-9-2,61850-9-2le, IEC60044-8FT3, state net FT3;
Described first processor 106 is used for, and described simulating signal and described digital signal are carried out analyzing and processing, obtains test result.
Wherein, described simulating signal and described digital signal are carried out analyzing and processing, use Fourier transform, that is to say;
Suppose that input signal is as follows:
Wherein, x
0---DC component ω
1---fundamental frequency angular frequency.
X
k,
--amplitude and the phase place of-Di k order harmonic components.
The formula that utilizes all-wave Fu formula algorithm to extract fundamental component is:
Utilize described Fourier transformation method that described simulating signal and described digital signal are handled, obtain ratio, differ, data target such as frequency difference, and by waveform described test result is shown intuitively, and can store, to make things convenient for searching of historical data.
Present embodiment discloses a kind of merge cells proving installation, and described device can also be tested the performance of described merge cells except can realizing embodiment three disclosed tests, has comprehensively realized being combined the test of unit.
The embodiment of the invention six discloses a kind of merge cells proving installation, referring to shown in Figure 6, described device comprises: collector 101, analyzer 102, analog signal collector 103, digital signal acquiring device 104, synchronous generator 105, first processor 106, first counter 107, second counter 108 and second processor 109;
Wherein, described collector 101, analyzer 102, analog signal collector 103, digital signal acquiring device 104, synchronous generator 105 and first processor 106 are consistent with embodiment four disclosed described collectors 101, analyzer 102, analog signal collector 103, digital signal acquiring device 104, synchronous generator 105 and first processor 106;
Described first counter 107 is used for, and records described digital signal due in, calculates described due in and the sampled point starting point mistiming constantly;
Described second counter 108 is used for, and calculates the time interval of neighbouring sample point;
Described second processor 109 is used for, and described mistiming and the described time interval are analyzed, and obtains the time response test data.
Present embodiment discloses a kind of merge cells proving installation, and described device can also be tested the time characteristic data of described merge cells except to embodiment three and the four disclosed tests, has more fully realized being combined the test of the every performance in unit.
Need to prove that the analyzer 102 among the embodiment of said apparatus, first processor 106 and second processor 109 all can be finished by a processor, can reduce the volume of merge cells proving installation like this, carry more convenient.
In addition, on above-described embodiment five bases, can also disclose a kind of merge cells proving installation, the ingredient of described device in comprising above-described embodiment five, also comprise: display-memory;
Described display-memory is used for, and described test result is shown in the mode of waveform and stores.
Need to prove that described display-memory also can show the form of the described time response test data in above-described embodiment six with waveform, like this can the handled easily personnel get information about the data in every test result.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment is apparent to those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wide region consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a merge cells method of testing is characterized in that, described method comprises:
Gather the model parameter of the current operation of merge cells;
Whether the model parameter of judging described current operation is consistent with the preset model parameter, if, the model that then obtains the current operation of described merge cells is the instruction of correct model, and if not, the model that then obtains the current operation of described merge cells is the instruction of error model.
2. method according to claim 1 is characterized in that, also comprises:
Gather the simulating signal of reference source;
In the time of the simulating signal of described collection reference source, the digital signal of gathering described merge cells;
Described simulating signal and described digital signal are carried out analyzing and processing, obtain test result.
3. method according to claim 2 is characterized in that, described described simulating signal and described digital signal is carried out analyzing and processing, and the process that obtains test result comprises:
Described simulating signal and described digital signal are carried out Fourier transform, obtain test result.
4. method according to claim 2 is characterized in that, also comprises:
Record described digital signal due in, calculate described due in and the sampled point starting point mistiming constantly;
Calculate the time interval of neighbouring sample point;
Described mistiming and the described time interval are analyzed, obtained the time response test data.
5. method according to claim 2 is characterized in that, also comprises:
Described test result is shown and store by waveform.
6. a merge cells proving installation is characterized in that, described device comprises: collector and analyzer;
Described collector is used for, and gathers the model parameter of the current operation of merge cells;
Described analyzer is used for, whether the model parameter of judging described current operation is consistent with the preset model parameter, if the model that then obtains the current operation of described merge cells is the instruction of correct model, if not, the model that then obtains the current operation of described merge cells is the instruction of error model.
7. device according to claim 6 is characterized in that, also comprises: analog signal collector, digital signal acquiring device, synchronous generator and first processor;
Described synchronous generator is used for, and sends synchronous acquisition instructions to described analog signal collector and described digital signal acquiring device;
Described analog signal collector is used for, and receives described synchronous acquisition instructions, gathers the simulating signal of reference source;
Described digital signal acquiring device is used for, and receives described synchronous acquisition instructions, the digital signal of gathering described merge cells;
Described first processor is used for, and described simulating signal and described digital signal are carried out analyzing and processing, obtains test result.
8. device according to claim 7 is characterized in that, also comprises: first counter, second counter and second processor;
Described first counter is used for, and records described digital signal due in, calculates described due in and the sampled point starting point mistiming constantly;
Described second counter is used for, and calculates the time interval of neighbouring sample point;
Described second processor is used for, and described mistiming and the described time interval are analyzed, and obtains the time response test data.
9. device according to claim 7 is characterized in that, also comprises: display-memory;
Described display-memory is used for, and described test result is shown in the mode of waveform and stores.
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