CN211928046U - Automatic distribution's power distribution terminal tester of simulation main website of distribution - Google Patents
Automatic distribution's power distribution terminal tester of simulation main website of distribution Download PDFInfo
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- CN211928046U CN211928046U CN201922206473.8U CN201922206473U CN211928046U CN 211928046 U CN211928046 U CN 211928046U CN 201922206473 U CN201922206473 U CN 201922206473U CN 211928046 U CN211928046 U CN 211928046U
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Abstract
The utility model relates to a distribution terminal tester technical field just discloses a distribution terminal tester of automatic simulation main website of distribution, including simulation main website unit, digital processing unit, clock unit, GPS modular unit, NTP server unit, man-machine unit, power amplifier unit, communication unit when keeping watch on, GPS modular unit's output and digital processing unit receiving terminal signal connection, the output and the digital processing unit receiving terminal signal connection of unit when clock is kept on, the output and the digital processing unit receiving terminal signal connection of power amplifier unit, the utility model discloses a be applied to distribution terminal DTU, FTU, TTU's witnessed inspections, be the portable tester who realizes at the scene to distribution terminal function, performance detection. The utility model realizes the testing of remote measurement, remote signaling, remote control, protection, SOE event, wave recording file and the like aiming at FTU, DTU and TTU; the method can check the communication consistency of the distribution network terminals.
Description
Technical Field
The utility model relates to a distribution terminal field test technical field specifically is a distribution terminal tester of simulation main website of automatic distribution.
Background
The testing of the distribution network automation system is always a weak link of the distribution network automation construction development, and in the practical application stage of the distribution network automation system which is vigorously developed, the problems that the technology is not mature, and effective testing means and testing equipment are not available exist; in order to realize the application of the automatic function of the fault handling of the power distribution network and better and more quickly isolate and handle line faults, a professional technical means is needed to test the automatic function of the fault handling of the power distribution network; the distribution network laboratory and the field test verification technology fall behind, and the test means is lack.
In each stage of construction and implementation of the power distribution network, various distribution automation system terminal devices need to be tested and verified on site. However, a corresponding testing means is still lacked at present, the practical application requirements of power distribution automation cannot be met, and at present, the existing domestic power distribution terminal field test mainly has the following defects: in the existing field test of the power distribution terminal, because a GPS clock cannot be obtained in some scenes, and absolute time is not used as reference under the test of the power distribution terminal clock, an effective time test result cannot be obtained; in the existing field test of the power distribution terminal, because field test field personnel configure a test scheme and detect the power distribution terminal through a tester, the test scheme is different in each person setting, no standard test scheme is executed, and meanwhile, a test report cannot be uploaded to a master station for unified management; the existing power distribution terminal field test can not carry out complete test on all communication modes and communication protocols of the power distribution terminal due to the communication mode unit.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a distribution terminal tester of simulation main website of automatic distribution possesses automatic distribution, accomplishes the test advantage automatically, has solved and needs artifical distribution, can't accomplish the problem of test automatically.
(II) technical scheme
In order to realize the above-mentioned automatic power distribution that possesses, accomplish the test purpose automatically, the utility model provides a following technical scheme: a power distribution terminal tester of an automatic power distribution analog master station comprises an analog master station unit, a digital processing unit, a clock timekeeping unit, a GPS module unit, an NTP server unit, a man-machine unit, a power amplifier unit, a communication unit and a lithium battery, wherein the output end of the GPS module unit is in signal connection with the receiving end of the digital processing unit, the output end of the clock timekeeping unit is in signal connection with the receiving end of the digital processing unit, the output end of the power amplifier unit is in signal connection with the receiving end of the digital processing unit, the digital processing unit comprises a DSP (digital signal processor) and an FPGA (field programmable gate array), the clock timekeeping unit comprises a high-precision temperature control crystal oscillator and a lithium battery, the output end of the lithium battery is electrically connected with the receiving end of the clock timekeeping unit, and the power amplifier unit comprises a voltage power amplifier unit and a current power amplifier, the intelligent network equipment is characterized in that the communication unit comprises a WIFI unit and a switch unit, the output end of the NTP server is connected with a power distribution terminal through the communication unit Ethernet through signals, and the man-machine unit comprises an industrial personal computer, a 10.3-inch liquid crystal screen, a mouse and a keyboard.
Preferably, the connection between the analog master station unit and the digital processing unit is an ethernet interface.
Preferably, the connection between the analog master station unit and the power distribution terminal is an ethernet interface.
Preferably, the digital processing unit is connected with the power amplifier unit by a parallel port bus.
Preferably, the digital processing unit and the clock time keeping unit are connected as an SPI bus.
Preferably, an MII bus is adopted between the digital processing unit and the communication unit.
(III) advantageous effects
Compared with the prior art, the utility model provides an automatic distribution's simulation main website's distribution terminal tester possesses following beneficial effect:
1. the power distribution terminal tester of the automatic power distribution simulation master station disciplines the high-precision temperature control crystal oscillator of the clock timekeeping unit by one second interval time through the second pulse generated by the GPS module unit, generates a pulse signal synchronous with the second pulse by the disciplined timekeeping unit, and continuously maintains the clock timekeeping unit after the second pulse is lost. The time keeping unit generates second pulse and sends the second pulse to the NTP server unit, the NTP server is connected with the power distribution terminal through the communication unit Ethernet, time service is carried out on the power distribution terminal, and under the condition of no power, the built-in lithium battery continuously supplies power to the clock time keeping unit to enable the time keeping unit to continuously keep the clock. The method solves the problems that the field where most power distribution terminals are installed cannot receive GPS signals, the power distribution terminal tester does not have GPS signals, and the power distribution terminals cannot be subjected to time service.
2. This automatic distribution's power distribution terminal tester of simulation main website, through possessing the simulation main website, the simulation main website unit passes through communication unit connection power distribution terminal, the simulation main website unit reads power distribution terminal information with 104 stipulations, simulate main website unit automatic control digital processing unit output voltage electric current through predetermined test scheme, thereby accomplish the detection of power distribution terminal overall function, and detect the completion at every individual function, read protection device's SOE incident, whether qualified according to every test result of automatic judgement, form the closed-loop test to power distribution terminal, whole test process does not need artifical the participation, the automatic test of accomplishing, and the generation detects the report.
Drawings
FIG. 1 is a schematic block diagram of the present invention;
FIG. 2 is a schematic block diagram of a clock time keeping unit;
FIG. 3 is a block diagram of the analog master station automatic test principle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a power distribution terminal tester of an automatic power distribution analog master station comprises an analog master station unit, a digital processing unit, a clock time keeping unit, a GPS module unit, an NTP server unit, a man-machine unit, a power amplifier unit, a communication unit and a lithium battery, wherein a GPS module is arranged in the GPS module unit, the GPS module is LEA-5T, an output end of the GPS module unit is in signal connection with a receiving end of the digital processing unit, an output end of the clock time keeping unit is in signal connection with a receiving end of the digital processing unit, an output end of the power amplifier unit is in signal connection with a receiving end of the digital processing unit, the digital processing unit comprises a DSP and an FPGA, the DSP is TMS320C6748, the FPGA is XC3S500E, the TMS320C6748 is used as a control CPU, logic operation and control test flow are processed, and XC3S500E is used as a driving power amplifier unit and the clock time keeping unit to, the clock time keeping unit comprises a high-precision temperature control crystal oscillator and a lithium battery, XC3S500E of the digital processing unit receives a second pulse of the GPS module unit, tamines the high-precision temperature control crystal oscillator to generate a time keeping clock, the lithium battery can continuously supply power to the clock time keeping unit after the equipment is powered off to ensure that the time keeping clock is continuously kept, the output end of the lithium battery is electrically connected with the receiving end of the clock time keeping unit, the power amplification unit comprises a voltage power amplification unit and a current power amplification unit, the voltage power amplification unit is STW21N150K5, the current power amplification unit is IXFN180N15P, the STW21N150K5 generates a 0-300V linear voltage source, the IXFN180N15P generates a 0-30A linear current source, the communication unit comprises a WIFI unit and an exchanger unit, the WIFI unit is HLK-350, the exchanger unit is KS8995, the KS8995 serves as an exchanger chip and is connected with the power distribution terminal through an Ethernet, and the output end of the digital processing unit server is connected with a, the man-machine unit comprises an industrial personal computer, a 10.3-inch liquid crystal display, a mouse and a keyboard, an Ethernet interface is adopted for connection between the simulation main station unit and the digital processing unit, the Ethernet interface is adopted for connection between the simulation main station unit and the power distribution terminal, the digital processing unit and the power amplification unit are connected through a parallel port bus, the digital processing unit and the clock time-keeping unit are connected through an SPI bus, and an MII bus is adopted between the digital processing unit and the communication unit.
The working principle is that a high-precision temperature control crystal oscillator of a clock time keeping unit is acclimated by means of second pulse generated by a GPS module unit according to one-second interval time, the acclimated time keeping unit generates a pulse signal synchronous with the second pulse and continuously keeps the second pulse after the second pulse is lost, the time keeping unit generates the second pulse to be transmitted to an NTP server unit, the NTP server is connected with a power distribution terminal through a communication unit Ethernet to time the power distribution terminal, under the condition of no power, a built-in lithium battery continuously supplies power to the clock time keeping unit to continuously keep a clock, the problems that most of power distribution terminal installation sites cannot receive the GPS signal, a power distribution terminal tester does not have the GPS signal and cannot time the power distribution terminal are solved, and then an analog master station is provided and connected with the power distribution terminal through the communication unit, the analog master station unit reads power distribution terminal information through 104 protocols, the main station unit is simulated through a preset test scheme to automatically control the digital processing unit to output voltage and current, so that the overall function of the power distribution terminal is detected, the SOE event of the protection device is read after each single function is detected, whether each test result is qualified or not is automatically judged, closed-loop test on the power distribution terminal is formed, manual participation is not needed in the whole test process, the test is automatically completed, and a detection report is generated.
In summary, the distribution terminal tester of the automatic distribution simulation master station reindates the high-precision temperature control crystal oscillator of the clock time keeping unit by the second pulse generated by the GPS module unit according to the one-second interval time, the time keeping unit after reinitialization generates the pulse signal synchronous with the second pulse and keeps continuously after the second pulse is lost, the time keeping unit generates the second pulse and sends the second pulse to the NTP server unit, the NTP server is connected with the distribution terminal through the communication unit Ethernet to time the distribution terminal, under the condition of no power, the built-in lithium battery continuously supplies power to the clock time keeping unit to keep the clock time keeping unit continuously, the mode solves the problems that most fields installed on the distribution terminal cannot receive the GPS signal, the distribution terminal tester has no GPS signal and cannot time the distribution terminal, and the distribution terminal tester of the automatic distribution simulation master station, through possessing the simulation main website, the simulation main website unit passes through the communication unit and connects power distribution terminal, the simulation main website unit reads power distribution terminal information with the 104 stipulations, through the output voltage electric current of preset test scheme simulation main website unit automatic control digital processing unit, thereby accomplish the detection of power distribution terminal overall function, and detect at every individual item and accomplish, read protection device's SOE incident, whether qualified automatic judgement every test result, form and to power distribution terminal closed loop test, whole test process does not need artifical the participation, accomplish the experiment automatically, and generate the detection report.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic distribution terminal tester of simulation main website of distribution, includes simulation main website unit, digital processing unit, clock unit, GPS module unit, NTP server unit, man-machine unit, power amplifier unit, communication unit and lithium cell, its characterized in that when the unit is kept watch on to simulation main website: the output and the digital processing unit receiving terminal signal connection of GPS modular unit, the output and the digital processing unit receiving terminal signal connection of unit when the clock is on duty, the output and the digital processing unit receiving terminal signal connection of power amplifier unit, the output and the digital processing unit receiving terminal signal connection of communication unit, include DSP and FPGA in the digital processing unit, include high-accuracy control by temperature change crystal oscillator and lithium cell in the unit when the clock is on duty, the output and the receiving terminal electric connection of unit when the clock is on duty of lithium cell, include voltage power amplifier unit and current power amplifier unit in the power amplifier unit, include WIFI unit and switch unit in the communication unit, the output of NTP server passes through communication unit ethernet and is connected signal connection with distribution terminal, include industrial computer, 10.3 cun LCD screen, power amplifier unit in the man-machine unit, A mouse and a keyboard.
2. The power distribution terminal tester of an automatic power distribution analog master station of claim 1, wherein: and the connection between the analog main station unit and the digital processing unit adopts an Ethernet interface.
3. The power distribution terminal tester of an automatic power distribution analog master station of claim 1, wherein: and the simulation master station unit is connected with the power distribution terminal by adopting an Ethernet interface.
4. The power distribution terminal tester of an automatic power distribution analog master station of claim 1, wherein: the digital processing unit is connected with the power amplification unit by adopting a parallel port bus.
5. The power distribution terminal tester of an automatic power distribution analog master station of claim 1, wherein: the digital processing unit and the clock time keeping unit are connected into an SPI bus.
6. The power distribution terminal tester of an automatic power distribution analog master station of claim 1, wherein: and an MII bus is adopted between the digital processing unit and the communication unit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167829A (en) * | 2021-12-03 | 2022-03-11 | 浙江中控技术股份有限公司 | Clock synchronization test method and device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167829A (en) * | 2021-12-03 | 2022-03-11 | 浙江中控技术股份有限公司 | Clock synchronization test method and device |
| CN114167829B (en) * | 2021-12-03 | 2024-05-14 | 浙江中控技术股份有限公司 | Clock synchronization test method and device |
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