CN102331534A - Power distribution terminal detecting system and method - Google Patents
Power distribution terminal detecting system and method Download PDFInfo
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- CN102331534A CN102331534A CN201110154583A CN201110154583A CN102331534A CN 102331534 A CN102331534 A CN 102331534A CN 201110154583 A CN201110154583 A CN 201110154583A CN 201110154583 A CN201110154583 A CN 201110154583A CN 102331534 A CN102331534 A CN 102331534A
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Abstract
The invention provides a power distribution terminal detecting system. The power distribution terminal detecting system comprises a communication protocol detecting module, a three-phase AC (Alternating Current) standard source, a replay protecting instrument, an AC sampling accuracy module, a failure processing and detecting module and a main control module, wherein the three-phase AC standard source, the communication protocol detecting module, the replay protecting instrument, the AC sampling accuracy module and the failure processing and detecting module are respectively connected with the main control module; the communication protocol detecting module, the AC sampling accuracy module and the failure processing and detecting module are electrically connected with one another in sequence; and the main control module can be used for controlling corresponding modules to complete standard protocol detection, sampling accuracy detection, failure processing capacity detection and the like of a power distribution terminal to be detected. When the power distribution terminal detecting system is adopted, respective function detections can be automatically carried out as a whole, detection time for the power distribution terminal is effectively shortened, and detection efficiency is effectively increased.
Description
Technical field
The invention belongs to controller switching equipment detection technique field, relate in particular to a kind of detection method and system of distribution terminal.
Background technology
In recent years, along with the continuous development of electric power network technique, intelligent equipment constantly is applied in the electric power network technique in the digital transformer substation, realizes the power distribution automation of electrical network.Wherein the distribution automation end product is exactly the typical substitute of this series products; And widespread usage in intelligent grid; Realization is to the effective monitoring and the fault isolation of power distribution network circuit; Be intelligent grid robotization control the most effectively, tool power, energy-conservation, the most promising modern automation monitoring product of optimization, it also is the indispensable front-end equipment of information network platform simultaneously, its application identity the beginning of most advanced and sophisticated electric quantity test technology of the new period.
The quality of the serviceability of distribution power automation terminal has directly influenced the quality of power distribution network serviceability; Before being installed to distribution power automation terminal on the electrical network; Need carry out function and performance detection to the automatization terminal product of exploitation, guarantee that terminal operating is reliable, reach 5000 hours non-failure operation time; Guarantee terminal normal operation in 24 hours at the scene, power supply reliability is provided.At present the existing detection method to the distribution network terminal product has three kinds, a kind ofly is, uses 104 stipulations performance test softwares that it is detected, and mainly is that the IEC60870-5-101/104 stipulations are detected; Second kind is, uses to exchange standard source to distribution terminal adding three-phase alternating voltage electric current, sees the accuracy of terminal sampled data through maintenance software; The third is, uses the relay protection testing tool, and manual operation adds the false voltage electric current to the terminal; See the action situation at terminal through maintenance software.
The shortcoming that above method of testing exists is: the test of each item functional separation, at the scene under the condition of operation, the terminal carries out uninterrupted communication, circulating sampling, constantly judges line fault, and above method of testing can only to be each item function independently carry out; And each item function all adopts manual inspection, function software and instrument manually, and the test duration is long, and work efficiency is low.
Summary of the invention
The present invention is intended to solve in the prior art to distribution automation product test function singleness; Can not realize the technical matters of automatic test; A kind of detection system and method for distribution terminal are provided, can realize test in all directions, realize the test automation function simultaneously the distribution automation product.
A kind of distribution terminal detection system, said distribution terminal detection system comprises:
The communication protocol detection module is used for that distribution terminal to be measured is carried out stipulations and detects;
The three-phase alternating current standard source is used for three-phase current and voltage signal to said distribution terminal to be measured being provided;
The relay protection instrument is used for applying fault current and voltage signal to said distribution terminal to be measured;
AC sampling precision module is used for said distribution terminal communication and obtains the sampled data of distribution terminal, and these data are sent to main control module;
The fault handling detection module is used for detection failure electric current and voltage signal and is sent to initiatively module;
Main control module is used for
A, the output of control three-phase alternating current standard source and the real output value of gathering the three-phase alternating current standard source, and compare with the sampled data of the distribution terminal of being accepted;
B, control communication protocol detection module are used for that said distribution terminal to be measured is carried out stipulations and detect;
C, control relay protection instrument output fault current and voltage signal are also gathered failure message through the fault handling detection module;
Said three-phase alternating current standard source, communication protocol detection module, relay protection instrument, AC sampling precision module and fault handling detection module are electrically connected with said main control module respectively, and said communication protocol detection module, AC sampling precision module and fault handling detection module are electrically connected successively.
Preferably, said communication protocol detection module has the communication program of IEC60870-5-101/104, DNP3.0, SC1801, CDT standard stipulations.
Preferably, said three-phase alternating current standard source has the internal communication agreement of YC99A three-phase alternating current standard source.
Preferably, said relay protection instrument has the internal communication agreement of GL802 relay protection instrument.
Preferably, this distribution terminal detection system also comprises:
The in-service monitoring module is used for detecting in real time tested distribution terminal running status, measurement data and fault warning information;
The parameter maintenance module is used for tested distribution terminal is carried out that parameter is uploaded and dress down;
The Report Server Management module, the data that are used for obtaining according to detection scheme generate form;
Said in-service monitoring module, parameter maintenance module and Report Server Management module all are electrically connected with said main control module.
The present invention also provides a kind of distribution terminal detection method, and wherein, this detection method may further comprise the steps:
Step S100, master control module controls communication protocol detection module carries out the stipulations test to distribution terminal to be measured;
Step S200, master control module controls three-phase alternating current standard source is to tested distribution terminal output voltage current signal and detect the sampling precision of distribution terminal to be measured;
Step S300, master control module controls relay protection instrument is exported fault current and voltage signal, and detects the fault handling performance of distribution terminal to be measured;
Step S400 generates the detection form according to above detection data.
Preferably, said step S100 may further comprise the steps:
Step S101, master control module controls communication protocol detection module select IEC60870-5-104 Standards Code and said distribution terminal to be measured to carry out communication;
Step S102, the communication protocol detection module is connected with distribution terminal to be measured, initialization, startup transmission, test frame, total calling, the calling communication function of dividing into groups test;
Step S400 generates automatically and detects form.
Preferably, said step S200 may further comprise the steps:
Step S201, main control module issues communication command, control three-phase alternating current standard source output current voltage signal;
Step S202, the main control module collection exchanges the real output value of standard source, and obtains the data that distribution terminal to be measured is gathered;
Step S203 compares the real output value that exchanges standard source and the data value of distribution terminal collection to be measured;
Step S400 generates automatically and detects form.
Preferably, said step S300 may further comprise the steps:
Step S301, main control module issues communication command, control relay protection instrument output fault current voltage signal;
Step S302, the distribution terminal to be measured control and treatment that trips, the action message of this fault current voltage signal and distribution terminal to be measured flows to main control module through the fault handling detection module simultaneously;
Step S400, automatic report generation.
The above technical scheme; Built the on-the-spot operation platform of a distribution terminal according to the on-the-spot service condition of distribution terminal; Collection three-phase alternating current standard source, relay protection instrument and communication protocol detection module and one, the control through main control module realize to distribution terminal Standards Code to be measured detect, sampled data accuracy detection and fault handling Performance Detection, function, performance, the troubleshooting capability of distribution terminal are carried out full-automatic a detection; And generate examining report automatically; After configuring trace routine, whole testing process need not artificial the participation, has realized not only that each item Function detection is integrated to carry out automatically; Simultaneously also effectively shortened detection time, effectively improved detection efficiency distribution terminal.
Description of drawings
Fig. 1 is the structured flowchart of a kind of embodiment of distribution terminal detection system of the present invention;
Fig. 2 is the workflow diagram of the invention distribution terminal detection method of this a kind of embodiment;
Fig. 3 is the workflow diagram of the distribution terminal detection method of a kind of preferred embodiment of the present invention.
Embodiment
Clearer for technical matters, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 1, the present invention provides a kind of distribution terminal detection system, comprises three-phase alternating current standard source 1, relay protection instrument 2, communication protocol detection module 4, main control module 3, AC sampling precision module 7 and fault handling detection module 6.
Said communication protocol detection module 4 is used for that distribution terminal 5 to be measured is carried out stipulations and detects; Said communication protocol detection module 4 preferably has the communication program of IEC60870-5-101/104, DNP3.0, SC1801, CDT standard stipulations, can realize detection and test to the Standards Code of distribution terminal 5 to be measured.Select the IEC60870-5-104 Standards Code like the communication protocol detection module, be connected with distribution terminal 5 to be measured automatically successively then, initialization, startup transmission, test frame, always call, communication function test command such as grouping calling.
Said three-phase alternating current standard source 1 is used for three-phase current and voltage signal to said distribution terminal 5 to be measured being provided; Three-phase alternating current standard source 1 provides the three-phase current voltage of a standard can for distribution terminal 5 to be measured; Let 5 pairs of these three-phase current voltages of distribution terminal to be measured detect; And the actual output data that will detect data and said three-phase alternating current standard source 1 compares, through relatively drawing the Data Detection precision of distribution terminal 5 to be measured.Said three-phase alternating current standard source 1 preferably has the internal communication agreement of YC99A three-phase alternating current standard source.
Said relay protection instrument 2 is used for applying fault current and voltage signal to said distribution terminal 5 to be measured, tests the processing power of 5 pairs of these fault current voltage signals of distribution network terminal to be measured.Relay protection instrument 2 can regularly send fault current and voltage signals to distribution terminal 5 to be measured according to the setting of system, also can manual control its send fault current and voltage signals to distribution terminal 5 to be measured.Said relay protection instrument 2 preferably has the internal communication agreement of GL802 relay protection instrument.
Said AC sampling precision module 7 is used for said distribution terminal 5 communications and obtains the sampled data of distribution terminal, and these data are sent to main control module 3;
Said fault handling detection module 6 is used for detection failure electric current and voltage signal and is sent to initiatively module; This fault current and voltage signal are the fault-signals that relay protection instrument 2 sends to distribution terminal 5, and through detection and the collection to this signal, the action of carrying out with distribution terminal 5 to be measured compares, and can obtain the troubleshooting capability of distribution terminal 5 to be measured.
Said main control module 3 is used for:
A, 1 output of control three-phase alternating current standard source and the real output value of gathering three-phase alternating current standard source 1, and go to receive the sampled data of distribution terminal 5 through AC sampling precision module 7, and this sampled data and real output value are compared.
B, control communication protocol detection module 4 are used for that said distribution terminal to be measured is carried out stipulations and detect;
C, control relay protection instrument 2 output fault currents and voltage signal are also gathered failure messages through fault handling detection module 6;
Preferably, native system also comprises online monitor module 8, is used for detecting in real time information such as tested distribution terminal 5 running statuses, measurement data and fault warning; Can set per 1 second and read running status one time, set and whenever read measurement data, receive information such as fault warning in real time at a distance from 5 seconds.
The Report Server Management module, the data that are used for obtaining according to detection scheme generate form; Report Server Management module 10 has the report generation function, and according to the data source that obtains in the detection scheme implementation, the form of generation has: seized equipment testing report certificate, detection raw readings, test item summary table.
Said in-service monitoring module, parameter maintenance module and Report Server Management module all are electrically connected with said main control module.
The present invention also provides a kind of detection method of above-mentioned distribution terminal detection system, and is as shown in Figure 2, and this distribution terminal detection method may further comprise the steps:
Step S100,4 pairs of distribution terminals 5 to be measured of main control module 3 control communication protocol detection modules carry out the stipulations test;
Step S200, main control module 3 control 1 pair of tested distribution terminal 5 output voltage current signal of three-phase alternating current standard source and detect the sampling precision of distribution terminal 5 to be measured;
Step S300, main control module 3 control relay protection instruments 2 are exported fault current and voltage signals, and detect the fault handling performance of distribution terminal 5 to be measured;
Step S400 generates the detection form according to above detection data.
As a kind of preferred embodiment, as shown in Figure 3, the step that 4 pairs of distribution terminals 5 to be measured of said main control module 3 control communication protocol detection modules carry out the stipulations test comprises:
Step S101, main control module 3 at first control communication protocol detection module 4 and select IEC60870-5-104 Standards Code and said distribution terminal to be measured 5 to carry out communication;
Step S102, communication protocol detection module 4 start from that distribution terminal 5 to be measured connects, initialization, startup transmission, test frame, total calling, the calling communication function of dividing into groups test;
Can accomplish the communication protocol test to distribution terminal 5 to be measured through above step, the test data of this part is transferred in the Report Server Management module 10 through main control module 3 the most at last, generates automatically and detects form.
Preferably, said main control module 3 control 1 pair of tested distribution terminal 5 output voltage current signal of three-phase alternating current standard source and the step that detects the sampling precision of distribution terminal 5 to be measured comprise:
Step S201, main control module 3 issues communication command, control three-phase alternating current standard source 1 outputting standard three-phase current voltage signal;
Step S202, main control module 3 is gathered the real output value that exchanges standard source 1, and main control module 3 obtains the signal data value that distribution terminal 5 to be measured is gathered through AC sampling precision module 7 simultaneously;
Step S203, main control module 3 will exchange the real output value of standard source 1 and the data value of distribution terminal to be measured 5 collections compares;
Result after will comparing at last flows to said Report Server Management module 10, and automatic report generation is accomplished the detection to the sampling precision of distribution terminal 5 to be measured.
Preferably, main control module 1 control relay protection instrument 2 output fault current and voltage signals, and the step that detects the fault handling performance of distribution terminal 5 to be measured comprises:
Step S301, main control module 3 issues communication command, control relay protection instrument 2 output fault current voltage signals;
Step S302, distribution terminal 5 to be measured can be to the control and treatment that trips after detecting this fault current voltage signal, and the action message of this fault current voltage signal and distribution terminal to be measured 5 flows to main control module 3 through fault handling detection module 6 simultaneously;
Final main control module 3 sends the data of gained in this testing process to said Report Server Management module 10, and automatic report generation is accomplished the detection to distribution terminal 5 troubleshooting capabilities to be measured.
Finally can intuitively obtain data analysis to distribution terminal 5 dependence tests to be measured through the information in the form of automatic generation.
The hardware platform of native system mainly utilizes existing instrument and meter to build detection platform, realizes each detection scheme through detecting software, accomplishes the detection task automatically.Detect software fully use a computer the C/C++ programming technique and the communication technology, detection resources is controlled and communicated by letter, equipment to be detected is communicated, controls and monitoring in real time.The detection software of native system has used multithreading; The main thread that a task scheduling is at first arranged; Accomplish all single-threaded task schedulings; Work such as task is distributed, started, time-out, recovery, system all uses a thread operation control to each task, adopts massage pattern to carry out exchange message between the thread; Each functional module all has a basic thread, each task of cycle detection and executing state.Each task all adopts message trigger mechanism in the functional module, when needing to carry out certain task, sends a message.Initiating task processing procedure in the circulation is accomplished step by step in the thread.After task all finishes, only circulate in the basic thread and carry out a timing task.
Detection scheme sends to the main thread of task scheduling with each task.Main thread adopts each task the mode of sending message to be distributed to the basic thread of each module.After each module is received task, start the task processes in the thread, finish the work step by step, and the performance in each step is sent message give the scheduling main thread; Main thread can suspend at any time, the recovery task, and transmitting-receiving freely.
Each item function is test simultaneously in order, utilizes the on-the-spot operation of the distribution terminal detection platform of building, and uses complete distribution terminal function and the Performance Detection software of a cover, and function, performance, the fault handling cooperation of distribution terminal detected; Use detection platform software to issue communications command, the output of control three-phase alternating current standard source is gathered and is exchanged the standard source real output value; Communication function through the terminal obtains sampled data, carries out degree of accuracy and calculates; Use detection platform software to issue communications command, control relay protection instrument output fault-signal after handle at the terminal, is reported to detection platform software immediately; The detection method of native system satisfies the condition of operation at the scene fully, guarantees that the terminal is to carry out uninterrupted communication, circulating sampling, judging line fault constantly; Each item function and the performance cooperation of guaranteeing the terminal detect.
Each item function all adopts system's detection scheme to carry out, in detection scheme the software controlled instrument with communicate by letter, Error Calculation; Automatic report generation, elapsed time is shorter, and work efficiency effectively improves.
During the degree of accuracy of the detection sampled data of native system, adopt the computer software computational accuracy; From detection platform software, get a plurality of data and carry out all side's calculating; Utilize the real output value and the terminal sampled value of standard source to calculate; Multiple spot can be set in the detection scheme detect (as: 0%, 40%, 80%, 100%, 120% etc. sampled point), error result is accurate.Meet State Grid Corporation of China's technical manual " AC sampling and measuring device verification standard " fully.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. the distribution terminal detection system is characterized in that, said distribution terminal detection system comprises,
The communication protocol detection module is used for that distribution terminal to be measured is carried out stipulations and detects;
The three-phase alternating current standard source is used for three-phase current and voltage signal to said distribution terminal to be measured being provided;
The relay protection instrument is used for applying fault current and voltage signal to said distribution terminal to be measured;
AC sampling precision module is used for said distribution terminal communication and obtains the sampled data of distribution terminal, and these data are sent to main control module;
The fault handling detection module is used for detection failure electric current and voltage signal and is sent to initiatively module;
Main control module is used for
A, the output of control three-phase alternating current standard source and the real output value of gathering the three-phase alternating current standard source, and compare with the sampled data of the distribution terminal of being accepted;
B, control communication protocol detection module are used for that said distribution terminal to be measured is carried out stipulations and detect;
C, control relay protection instrument output fault current and voltage signal are also gathered failure message through the fault handling detection module;
Said three-phase alternating current standard source, communication protocol detection module, relay protection instrument, AC sampling precision module and fault handling detection module are electrically connected with said main control module respectively, and said communication protocol detection module, AC sampling precision module and fault handling detection module are electrically connected successively.
2. distribution terminal detection system according to claim 1 is characterized in that, said communication protocol detection module has the communication program of IEC60870-5-101/104, DNP3.0, SC1801, CDT standard stipulations.
3. distribution terminal detection system according to claim 1 is characterized in that, said three-phase alternating current standard source has the internal communication agreement of YC99A three-phase alternating current standard source.
4. distribution terminal detection system according to claim 1 is characterized in that, said relay protection instrument has the internal communication agreement of GL802 relay protection instrument.
5. distribution terminal detection system according to claim 1 is characterized in that, also comprises
The in-service monitoring module is used for detecting in real time tested distribution terminal running status, measurement data and fault warning information;
The parameter maintenance module is used for tested distribution terminal is carried out that parameter is uploaded and dress down;
The Report Server Management module, the data that are used for obtaining according to detection scheme generate form;
Said in-service monitoring module, parameter maintenance module and Report Server Management module all are electrically connected with said main control module.
6. a distribution terminal detection method wherein, may further comprise the steps,
Step S100, master control module controls communication protocol detection module carries out the stipulations test to distribution terminal to be measured;
Step S200, master control module controls three-phase alternating current standard source is to tested distribution terminal output voltage current signal and detect the sampling precision of distribution terminal to be measured;
Step S300, master control module controls relay protection instrument is exported fault current and voltage signal, and detects the fault handling performance of distribution terminal to be measured;
Step S400 generates the detection form according to above detection data.
7. distribution terminal detection method according to claim 6 is characterized in that said step S100 may further comprise the steps,
Step S101, master control module controls communication protocol detection module select IEC60870-5-104 Standards Code and said distribution terminal to be measured to carry out communication;
Step S102, the communication protocol detection module is connected with distribution terminal to be measured, initialization, startup transmission, test frame, total calling, the calling communication function of dividing into groups test;
Step S400 generates automatically and detects form.
8. distribution terminal detection method according to claim 6 is characterized in that said step S200 may further comprise the steps,
Step S201, main control module issues communication command, control three-phase alternating current standard source output current voltage signal;
Step S202, the main control module collection exchanges the real output value of standard source, and obtains the data that distribution terminal to be measured is gathered;
Step S203 compares the real output value that exchanges standard source and the data value of distribution terminal collection to be measured;
Step S400 generates automatically and detects form.
9. distribution terminal detection method according to claim 6 is characterized in that said step S300 may further comprise the steps,
Step S301, main control module issues communication command, control relay protection instrument output fault current voltage signal;
Step S302, the distribution terminal to be measured control and treatment that trips, the action message of this fault current voltage signal and distribution terminal to be measured flows to main control module through the fault handling detection module simultaneously;
Step S400, automatic report generation.
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