CN102331534B - Power distribution terminal detecting system and method - Google Patents
Power distribution terminal detecting system and method Download PDFInfo
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- CN102331534B CN102331534B CN201110154583.XA CN201110154583A CN102331534B CN 102331534 B CN102331534 B CN 102331534B CN 201110154583 A CN201110154583 A CN 201110154583A CN 102331534 B CN102331534 B CN 102331534B
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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 development of electric power network technique, in digital transformer substation, intelligent equipment is constantly applied in electric power network technique, realizes the power distribution automation of electrical network.Wherein distribution automation terminal product is exactly the typical substitute of this series products, and be generally applied in intelligent grid, realize effective monitoring and fault isolation to distribution network line, be intelligent grid robotization control the most effectively, tool power, energy-conservation, the most promising modern automation monitoring product of optimization, it is also the indispensable front-end equipment of information network platform simultaneously, and 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 affected the quality of power distribution network serviceability, before distribution power automation terminal is installed on electrical network, need to carry out the detection of function and performance 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 of distribution network terminal product is had to three kinds, Yi Zhongshi, uses 104 stipulations performance test softwares to detect it, is mainly that IEC60870-5-101/104 stipulations are detected; The second is that use exchanges standard source and adds three-phase alternating current current voltage to distribution terminal, sees the accuracy of terminal sampled data by maintenance software; The third is, uses relay protection testing tool, and manual operation adds false voltage electric current to terminal; See the action situation of terminal by maintenance software.
The shortcoming that above method of testing exists is: various functions is test separately, and at the scene under the condition of operation, terminal is carried out uninterrupted communication, circulating sampling, moment and judged line fault, and above method of testing can only to be various functions independently carry out; And various functions all adopts manual inspection, function software and instrument manually, the test duration is long, and work efficiency is low.
Summary of the invention
The present invention is intended to solve in 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 the test in all directions to distribution automation product, realize test automation function simultaneously.
A kind of power distribution terminal detecting system, described power distribution terminal detecting system comprises:
Communication protocol detection module, is measured electric terminals and carries out stipulations detection for treating;
Three-phase AC standard source, for providing three-phase current and voltage signal to described distribution terminal to be measured;
Relay protection instrument, for applying fault current and voltage signal to described distribution terminal to be measured;
Alternating Current Sampling Precision module, for described distribution terminal communication and obtain the sampled data of distribution terminal, and is sent to main control module by these data;
Fault handling detection module, for detection of fault current and voltage signal and be sent to initiatively module;
Main control module, for
A, control three-phase AC standard source and export and gather the real output value of three-phase AC standard source, and compare with the sampled data of accepted distribution terminal;
B, communication control stipulations detection module are for carrying out stipulations detection to described distribution terminal to be measured;
C, control relay protection instrument output fault current and voltage signal also gather failure message by fault handling detection module;
Described three-phase AC standard source, communication protocol detection module, relay protection instrument, Alternating Current Sampling Precision module and fault handling detection module are electrically connected with described main control module respectively, and described communication protocol detection module, Alternating Current Sampling Precision module and fault handling detection module are electrically connected successively.
Preferably, described communication protocol detection module has the communication program of IEC60870-5-101/104, DNP3.0, SC1801, CDT standard stipulations.
Preferably, described three-phase AC standard source has the internal communication agreement of YC99A three-phase AC standard source.
Preferably, described relay protection instrument has the internal communication agreement of GL802 relay protection instrument.
Preferably, this power distribution terminal detecting system also comprises:
In-service monitoring module, for detecting in real time tested distribution terminal running status, measurement data and fault warning information;
Parameter maintenance module, for tested distribution terminal is carried out, parameter is uploaded and lower dress;
Report Server Management module, for the data generating report forms obtaining according to detection scheme;
Described in-service monitoring module, parameter maintenance module and Report Server Management module are all electrically connected with described main control module.
The present invention also provides a kind of distribution terminal detection method, and wherein, this detection method comprises the following steps:
Step S100, master control module controls communication protocol detection module is treated and is measured electric terminals and carries out stipulations test;
Step S200, master control module controls three-phase AC 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 and detects form according to above detection data.
Preferably, described step S100 comprises the following steps:
Step S101, master control module controls communication protocol detection module selects IEC60870-5-104 Standards Code and described distribution terminal to be measured to carry out communication;
Step S102, communication protocol detection module is connected with distribution terminal to be measured, initialization, startup transmission, test frame, total calling, the test of grouping calling communication function;
Step S400, automatically generates and detects form.
Preferably, described step S200 comprises the following steps:
Step S201, main control module issues communication command, controls three-phase AC standard source output current voltage signal;
Step S202, main control module collection exchanges the real output value of standard source, and obtains the data that distribution terminal to be measured gathers;
Step S203, compares exchanging the real output value of standard source and the data value of distribution terminal collection to be measured;
Step S400, automatically generates and detects form.
Preferably, described step S300 comprises the following steps:
Step S301, main control module issues communication command, controls relay protection instrument output fault current voltage signal;
Step S302, distribution terminal to be measured trips to control and processes, and the action message of this fault current voltage signal and distribution terminal to be measured flows to main control module by fault handling detection module simultaneously;
Step S400, automatic report generation.
The above technical scheme, build the on-the-spot operation platform of a distribution terminal according to the on-the-spot service condition of distribution terminal, collection three-phase AC standard source, relay protection instrument and communication protocol detection module and one, realize treating by the control of main control module and be measured the detection of electric terminals Standards Code, sampled data accuracy detection and fault handling Performance Detection, to the function of distribution terminal, performance, troubleshooting capability is carried out full-automatic a detection, and automatically generate examining report, after trace routine is set, whole testing process is without artificial participation, not only having realized various functions detects and integratedly automatically carries out, also effectively shortened the detection time to distribution terminal simultaneously, effectively improve detection efficiency.
Brief description of the drawings
Fig. 1 is the structured flowchart of a kind of embodiment of power distribution terminal detecting system of the present invention;
Fig. 2 is the workflow diagram of the invention distribution terminal detection method of this 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
In order to make technical matters solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the invention provides a kind of power distribution terminal detecting system, comprise three-phase AC standard source 1, relay protection instrument 2, communication protocol detection module 4, main control module 3, Alternating Current Sampling Precision module 7 and fault handling detection module 6.
Described communication protocol detection module 4, is measured electric terminals 5 and carries out stipulations detection for treating; Described 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 the test for the treatment of the Standards Code that is measured electric terminals 5.Select IEC60870-5-104 Standards Code as communication protocol detection module, be then automatically connected with distribution terminal 5 to be measured successively, initialization, startup transmission, test frame, the communication function test commands such as calling of always calling, divide into groups.
Described three-phase AC standard source 1, for providing three-phase current and voltage signal to described distribution terminal 5 to be measured; Three-phase AC standard source 1 provides the three-phase current voltage of a standard can to distribution terminal 5 to be measured, allow distribution terminal 5 to be measured detect this three-phase current voltage, and the actual output data that detect data and described three-phase AC standard source 1 are compared, by relatively drawing the Data Detection precision of distribution terminal 5 to be measured.Described three-phase AC standard source 1 preferably has the internal communication agreement of YC99A three-phase AC standard source.
Described relay protection instrument 2, for applying fault current and voltage signal to described distribution terminal 5 to be measured, tests the processing power of distribution network terminal 5 to be measured to this fault current voltage signal.Relay protection instrument 2 can send fault current and voltage signal to distribution terminal 5 to be measured according to the setting timing of system, also can manual control its send fault current and voltage signal to distribution terminal 5 to be measured.Described relay protection instrument 2 preferably has the internal communication agreement of GL802 relay protection instrument.
Described Alternating Current Sampling Precision module 7, for described distribution terminal 5 communications and obtain the sampled data of distribution terminal, and is sent to main control module 3 by these data;
Described fault handling detection module 6, for detection of fault current and voltage signal and be 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 by the detection to this signal and collection, 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.
Described main control module 3, for:
The real output value of three-phase AC standard source 1 is exported and gathered to a, control three-phase AC standard source 1, and go to receive the sampled data of distribution terminal 5 by Alternating Current Sampling Precision module 7, and this sampled data and real output value are compared.
B, communication control stipulations detection module 4 are for carrying out stipulations detection to described distribution terminal to be measured;
C, control relay protection instrument 2 are exported fault current and voltage signal and gather failure message by fault handling detection module 6;
Preferably, native system also comprises in-service monitoring module 8, for detecting in real time the information such as tested distribution terminal 5 running statuses, measurement data and fault warning; Can set every 1 second and read running status one time, set and read measurement data every 5 seconds, receive in real time the information such as fault warning.
Parameter maintenance module 9, for tested distribution terminal 5 is carried out, parameter is uploaded and lower dress; Parameter comprises the operational factor of distribution terminal 5 to be measured, the parameter of each communications protocol, the program of distribution terminal to be measured 5; parameter maintenance module 9 also has the setting of the control parameter to three-phase AC standard source, has the setting of the control parameter to relay protection instrument.
Report Server Management module, for the data generating report forms obtaining according to detection scheme; Report Server Management module 10 has report generation function, and according to the data source obtaining in detection scheme implementation, the form of generation has: the examining report certificate of tested equipment, detection raw readings, test item summary table.
Described in-service monitoring module, parameter maintenance module and Report Server Management module are all electrically connected with described main control module.
The present invention also provides a kind of detection method of above-mentioned power distribution terminal detecting system, and as shown in Figure 2, this distribution terminal detection method comprises the following steps:
Step S100, main control module 3 communication control stipulations detection modules 4 are treated and are measured electric terminals 5 and carry out stipulations test;
Step S200, main control module 3 is controlled three-phase AC standard source 1 to tested distribution terminal 5 output voltage current signals and is detected the sampling precision of distribution terminal 5 to be measured;
Step S300, main control module 3 is controlled relay protection instrument 2 and is exported fault current and voltage signal, and detects the fault handling performance of distribution terminal 5 to be measured;
Step S400, generates and detects form according to above detection data.
As a kind of preferred embodiment, as shown in Figure 3, described main control module 3 communication control stipulations detection modules 4 are treated and are measured the step that electric terminals 5 carries out stipulations test and comprise:
Step S101, main control module 3 first communication control stipulations detection module 4 selects IEC60870-5-104 Standards Code and described distribution terminal to be measured 5 to carry out communication;
Step S102, communication protocol detection module 4 starts from that distribution terminal 5 to be measured connects, initialization, startup transmission, test frame, total calling, the test of grouping calling communication function;
Can be completed and be treated the communication protocol test that is measured electric terminals 5 by above step, the test data of this part is transferred in Report Server Management module 10 by main control module 3 the most at last, automatically generates and detects form.
Preferably, described main control module 3 is controlled three-phase AC standard source 1 tested distribution terminal 5 output voltage current signals the step that detects the sampling precision of distribution terminal 5 to be measured is comprised:
Step S201, main control module 3 issues communication command, controls three-phase AC standard source 1 outputting standard three-phase current voltage signal;
Step S202, main control module 3 gathers the real output value that exchanges standard source 1, and main control module 3 obtains by Alternating Current Sampling Precision module 7 signal data value that distribution terminal 5 to be measured gathers simultaneously;
Step S203, main control module 3 compares exchanging the real output value of standard source 1 and the data value that distribution terminal to be measured 5 gathers;
Finally the result after is relatively flowed to described Report Server Management module 10, automatic report generation, completes the detection for the treatment of the sampling precision that is measured electric terminals 5.
Preferably, main control module 1 is controlled relay protection instrument 2 and is exported fault current and voltage signal, 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, controls relay protection instrument 2 and exports fault current voltage signal;
Step S302, distribution terminal 5 to be measured can be controlled and process tripping after this fault current voltage signal being detected, and the action message of this fault current voltage signal and distribution terminal to be measured 5 flows to main control module 3 by fault handling detection module 6 simultaneously;
Final main control module 3 sends the data of gained in this testing process to described Report Server Management module 10, and automatic report generation, completes and treat the detection that is measured electric terminals 5 troubleshooting capabilities.
Finally can intuitively obtain treating by the information in the form of automatic generation the data analysis that is measured electric terminals 5 dependence tests.
The hardware platform of native system mainly utilizes existing instrument and meter to build detection platform, realizes each detection scheme by detecting software, automatically completes Detection task.Detect software and fully use computing machine C/C++ programming technique and the communication technology, detection resources is controlled and communicated by letter, to detected equipment communicate, control and Real-Time Monitoring.The detection software application of native system multithreading, first there is the main thread of a task scheduling, complete all single-threaded task schedulings, the work such as task distributes, starts, time-out, recovery, system is used a thread operation to control to each task, adopts massage pattern to carry out exchange message between thread; Each functional module has a basic thread, each task of cycle detection and executing state.In functional module, each task adopts message trigger mechanism, need to carry out certain task time, sends a message.In thread, initiating task processing procedure in circulation, completes step by step.After task all finishes, in basic thread, only a timing task is carried out in circulation.
Detection scheme, by each task, sends to the main thread of task scheduling.Main thread adopts the mode of transmission message to be distributed to the basic thread of modules each task.Each module is received after task, starts the task processes in thread, finishes the work step by step, and the performance of each step is sent to message to scheduling main thread; Main thread can suspend at any time, recovery task, and transmitting-receiving freely.
Various functions is orderly test simultaneously, utilizes the on-the-spot operation of the distribution terminal detection platform of building, and uses a set of complete distribution terminal function and Performance Detection software, and the function to distribution terminal, performance, fault handling cooperation detect; Use detection platform software to issue communications command, control three-phase AC standard source output, gather and exchange standard source real output value; Communication function by terminal obtains sampled data, carries out degree of accuracy calculating; Use detection platform software to issue communications command, control relay protection instrument output fault-signal, after terminal is processed, be reported to immediately detection platform software; The detection method of native system meets the condition of operation at the scene completely, guarantees that terminal is to judge line fault carrying out uninterrupted communication, circulating sampling, moment; Various functions and the performance cooperation of guaranteeing terminal detect.
Various functions all adopts system detection scheme to carry out, in detection scheme software apparatus for automatic control with communicate by letter, error calculate; Automatic report generation, elapsed time is shorter, and work efficiency effectively improves.
When the degree of accuracy of the detection sampled data of native system, adopt computer software computational accuracy; From detection platform software, get multiple data and carry out all side's calculating, utilize real output value and the terminal sampled value of standard source to calculate, multiple spot can be set in detection scheme and 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 specification " completely.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. power distribution terminal detecting system, is characterized in that, described power distribution terminal detecting system comprises,
Communication protocol detection module, is measured electric terminals and carries out stipulations detection for treating;
Three-phase AC standard source, for providing three-phase current and voltage signal to described distribution terminal to be measured;
Relay protection instrument, for applying fault current and voltage signal to described distribution terminal to be measured;
Alternating Current Sampling Precision module, for described distribution terminal communication and obtain the sampled data of distribution terminal, and is sent to main control module by these data;
Fault handling detection module, for detection of fault current and voltage signal and be sent to main control module;
Main control module, for
A, control three-phase AC standard source and export and gather the real output value of three-phase AC standard source, and compare with the sampled data of accepted distribution terminal;
B, communication control stipulations detection module are for carrying out stipulations detection to described distribution terminal to be measured;
C, control relay protection instrument output fault current and voltage signal also gather failure message by fault handling detection module;
Described three-phase AC standard source, communication protocol detection module, relay protection instrument, Alternating Current Sampling Precision module and fault handling detection module are electrically connected with described main control module respectively, and described communication protocol detection module, Alternating Current Sampling Precision module and fault handling detection module are electrically connected successively.
2. power distribution terminal detecting system according to claim 1, is characterized in that, described communication protocol detection module has the communication program of IEC60870-5-101/104, DNP3.0, SC1801, CDT standard stipulations.
3. power distribution terminal detecting system according to claim 1, is characterized in that, described three-phase AC standard source has the internal communication agreement of YC99A three-phase AC standard source.
4. power distribution terminal detecting system according to claim 1, is characterized in that, described relay protection instrument has the internal communication agreement of GL802 relay protection instrument.
5. power distribution terminal detecting system according to claim 1, is characterized in that, also comprises
In-service monitoring module, for detecting in real time tested distribution terminal running status, measurement data and fault warning information;
Parameter maintenance module, for tested distribution terminal is carried out, parameter is uploaded and lower dress;
Report Server Management module, for the data generating report forms obtaining according to detection scheme;
Described in-service monitoring module, parameter maintenance module and Report Server Management module are all electrically connected with described main control module.
6. the detection method based on power distribution terminal detecting system claimed in claim 1, wherein, comprises the following steps,
Step S100, the communication protocol detection module that master control module controls is electrically connected with it is treated and is measured electric terminals and carries out stipulations test;
Step S200, the three-phase AC standard source that master control module controls is electrically connected with it is to tested distribution terminal output voltage current signal and detect the sampling precision of distribution terminal to be measured;
Step S300, the relay protection instrument that master control module controls is electrically connected with it is exported fault current and voltage signal, and detects the fault handling performance of distribution terminal to be measured;
Step S400, generates and detects form according to above detection data.
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