CN110988532A - Protection logic test system of distribution automation terminal - Google Patents
Protection logic test system of distribution automation terminal Download PDFInfo
- Publication number
- CN110988532A CN110988532A CN201911197034.3A CN201911197034A CN110988532A CN 110988532 A CN110988532 A CN 110988532A CN 201911197034 A CN201911197034 A CN 201911197034A CN 110988532 A CN110988532 A CN 110988532A
- Authority
- CN
- China
- Prior art keywords
- distribution automation
- test
- automation terminal
- detection
- protection logic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a protection logic test system of a distribution automation terminal, which relates to the technical field of automation test of the distribution automation terminal of a distribution network. The automatic circulation among the single test tasks is realized, the human intervention in the test process is reduced, the automatic closed-loop recording of the test data and the automatic generation of the test report are realized in a mode of automatically receiving and analyzing various types of protocol data of each level, the dependence degree of a test field on technicians is reduced, and the effect of releasing professional technicians is achieved.
Description
Technical Field
The invention belongs to the technical field of automatic testing of distribution automation terminals of a power distribution network, and particularly relates to a protection logic testing system of a distribution automation terminal.
Background
With the gradual expansion of the construction range and functions of the power distribution automation system of the power grid, a large number of power distribution automation terminals are applied to distribution network production operation and are continuously increased along with the progress. The improvement of the detection service level of the automatic terminal equipment directly affects the workload and the construction level of the subsequent installation, debugging, operation and maintenance of the automatic terminal equipment. At present, the key links of type tests, special network access tests, goods sampling inspection and the like explored from practice strengthen the quality detection of the power distribution terminal equipment, and the method is a key measure for enhancing the intelligent degree of service implementation, improving the operation and maintenance efficiency, saving the cost and further improving the lean management level of automation speciality. However, the type test, the network-accessing special test, the arrival sampling test, the entrustment test and other professional tests are various, the number of suppliers is huge, the types of equipment are various, the detection workload is huge, and new requirements are provided for the equipment level of the existing detection service, the management process of the detection service, the professional skills of testers and the human resources of the detection service. The function test of the equipment is not comprehensive enough due to the fact that professional equipment for detecting specialties is insufficient; the testing process excessively depends on professional detection personnel, so that the testing result is easily influenced by a supervisor factor; the platform which is lack of effective professional technology support carries out unified process management, so that the improvement of the management level of a detection operator is limited. The improvement of the operation level of the detection service can effectively improve the improvement of the working efficiency of subsequent construction, operation and maintenance, and further influences the level of the whole power distribution automation construction.
When equipment carries out engineering censorship, the operation such as tester passes through artifical hand input parameter, reads the parameter, record data, and manual operation leads to the circumstances such as test progress slow, and wherein distribution automation terminal's protection logic test item is various, data bulk is fairly big. Therefore, it is necessary to provide a protection logic test system for a distribution automation terminal, so as to implement automation tests of individual items in a centralized control form of test cases.
Disclosure of Invention
The invention aims to provide a protection logic test system of a distribution automation terminal, so that the defects of various protection logic test items, quite large data volume and slow test progress caused by manual operation of the conventional distribution automation terminal are overcome.
In order to achieve the above object, the present invention provides a protection logic test system for a distribution automation terminal, including: the distribution automation terminal is used for simulating the logic test of the distribution automation terminal;
the analog quantity output equipment is connected with the power distribution automation terminal and used for outputting test analog quantity;
the digital quantity input and output equipment is connected with the power distribution automation terminal and is used for outputting a test digital quantity; and
and the main control equipment is respectively connected with the analog quantity output equipment, the digital quantity input and output equipment and the distribution automation terminal, and is used for selecting corresponding protection logic test items according to the protection function test requirements of the distribution automation distribution terminal and the feed terminal, controlling the analog quantity output equipment to output corresponding test analog quantity and controlling the digital quantity input and output equipment to output corresponding test digital quantity according to the protection logic test items to perform corresponding protection logic tests on the distribution automation terminal, and feeding the results of the corresponding protection logic test item tests back to the main control equipment by the distribution automation terminal.
Further, the main control device is provided with a client.
Furthermore, the connection mode of the main control device and the distribution automation terminal is RS232 serial port communication, and the communication follows IEC101 protocol.
Further, the protection logic test needs to test whether the tested distribution automation terminal can correctly respond to the protection logic under different conditions in different environments.
Further, the protection logic test item includes: overcurrent protection detection, zero sequence current protection detection, zero sequence voltage protection detection, reclosing protection detection, secondary reclosing detection, loop closing function detection, power failure delay back opening detection, power failure delay back closing detection, single side voltage failure delay back closing detection, double side voltage-time forbidding closing detection, non-interruption current detection, grounding fault judgment detection and logic reset function detection.
Further, the protection logic test items are controlled through a human-computer interface.
Further, the master control device automatically generates a test report according to the result of the test of the corresponding protection logic test item by the distribution automation terminal.
Compared with the prior art, the invention has the following beneficial effects:
according to the protection logic test system of the distribution automation terminal, the main control equipment selects corresponding protection logic test items according to the protection function test requirements of the distribution automation distribution terminal and the feed terminal, controls the analog quantity output equipment to output corresponding test analog quantity and controls the digital quantity input and output equipment to output corresponding test digital quantity according to the protection logic test items to perform corresponding protection logic test on the distribution automation terminal, and the distribution automation terminal feeds back the test result of the corresponding protection logic test items to the main control equipment. The automatic circulation among the single test tasks is realized, the human intervention in the test process is reduced, the automatic closed-loop recording of the test data and the automatic generation of the test report are realized in a mode of automatically receiving and analyzing various types of protocol data of each level, the dependence degree of a test field on technicians is reduced, and the effect of releasing professional technicians is achieved. The customized service of the test case is supported, the automatic screening of the engineering test case and the automatic generation of the test scheme which take the engineering requirement as a starting point are realized, and the working efficiency of the test preparation and test process is improved.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only one embodiment of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a protection logic test system of a distribution automation terminal according to the present invention;
FIG. 2 is a diagram of the type of protection logic test items of the present invention;
FIG. 3 is a schematic diagram of a test case of the present invention;
FIG. 4 is a schematic diagram of the structure of the test case of the present invention.
Detailed Description
The technical solutions in the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the protection logic test system of a distribution automation terminal provided by the present invention includes: the system comprises a main control device, an analog quantity output device, a digital quantity input and output device and a distribution automation terminal, wherein the main control device is provided with a client, the main control device is respectively connected with the analog quantity output device and the digital quantity input and output device, the analog quantity output device and the digital quantity input and output device are respectively connected with the distribution automation terminal, and the distribution automation terminal is also connected with the main control device. The connection mode of the main control equipment and the distribution automation terminal is RS232 serial port communication, and the communication conforms to IEC101 protocols.
The main control equipment is used for selecting corresponding protection logic test items according to the protection function test requirements of the distribution automation distribution terminal and the feed terminal, controlling the analog quantity output equipment to output corresponding test analog quantity and controlling the digital quantity input and output equipment to output corresponding test digital quantity according to the protection logic test items to perform corresponding protection logic tests on the distribution automation distribution terminal, and the distribution automation terminal feeds back the test results of the corresponding protection logic test items to the main control equipment.
In this embodiment, the model number adopted by the main control device is J1900, the model number adopted by the analog output device is EP4CE10E228, and the model number adopted by the digital input/output device is TA 2022.
As shown in fig. 2, a protection logic test item of a protection logic test system of a distribution automation terminal is controlled by a human-computer interface, and according to a protection function test requirement of the distribution automation terminal and a feeder terminal, the protection logic test needs to test whether protection logic of a device under test can correctly respond to protection logic under different conditions in different environments, and the protection logic test item includes: overcurrent protection detection, zero sequence current protection detection, zero sequence voltage protection detection, reclosing protection detection, secondary reclosing detection, loop closing function detection, power failure delay back opening detection, power failure delay back closing detection, single side voltage failure delay back closing detection, double side voltage-time forbidding closing detection, non-interruption current detection, grounding fault judgment detection and logic reset function detection.
The test of the protection logic test item comprises the following steps:
(1) overcurrent protection detection: and when a certain current exceeds a specific limit value and continues for a period of action time, the tested distribution automation terminal performs a switching-off action.
(2) And (3) zero-sequence current protection detection: when the neutral point of the distribution automation terminal to be tested is directly grounded, the system of the distribution automation terminal is grounded and short-circuited, a large zero-sequence current is generated, and the distribution automation terminal to be tested performs a switching-off action according to the phenomenon.
(3) And (3) zero-sequence voltage protection detection: detecting that a specified zero sequence action voltage signal is required to be immediately switched off in a set time delay, and cutting off a ground fault; and if the zero sequence voltage signal is detected outside the set time delay, no brake-separating control instruction is sent.
(4) Protection and detection of reclosure: when the short-circuit device trips due to faults automatically closes according to the requirement, the closing mode comprises the following steps: no-detection, no-voltage detection line and synchronous detection.
(5) And (3) locking secondary reclosing detection: when a fault is met, the tested distribution automation terminal is subjected to secondary reclosing by locking after the first reclosing is successful and when the fault is met again.
(6) And (3) loop closing function detection: when the looped netowrk circuit breaks down to after detecting the trouble, contact switch unilateral decompression back, will automatic combined floodgate, need carry out the line inspection before the combined floodgate, wherein the inspection mode includes: the closing operation is carried out without checking, without pressure of a checking line and at the same checking period;
(7) and (3) switching-off detection after power loss delay: when the switch is in a closing state and when voltage loss and no current occur on two sides, the switch is switched off after a specified time delay.
(8) And (3) switching-on detection after power-on delay: when the switch is in an opening state and one side is electrified, the switch is closed after a specified time delay.
(9) And (3) switching-on detection after unilateral voltage loss and time delay: the switch is in a position-separating state, the voltage on two sides normally lasts for more than a specified time, the voltage on one side disappears, and the switch is controlled to be switched on after the specified time is delayed.
(10) Forbidding closing detection when voltage exists on two sides: and when both sides of the switch have voltage, the switch is forbidden to carry out closing action.
(11) Locking and closing detection: if the voltage is lost within the set time limit after the switch-on, switching off and locking the switch-on;
(12) locking and opening detection: when voltage is lost within a set time limit after switching on and a fault is not detected, the switching-off function is locked, and locking is reset after 5 minutes of delay;
(13) detecting non-interruption current: when the current flowing through the load switch is detected to be larger than the specified interruption current, the tripping loop is locked;
(14) and (3) judging and detecting the ground fault: when a line has a ground fault, the tested distribution automation terminal can accurately and quickly give an alarm or give a ground alarm to the master station end;
(15) and (3) detecting a logic reset function: after the fault is processed, the tested distribution automation terminal should have a fault mark which is manually or automatically cleared to prepare for the next fault processing.
An embodiment of the protection logic test system of a distribution automation terminal of the present invention is described in detail to make those skilled in the art more aware of the present invention:
selecting an overcurrent protection detection test item to perform protection logic test, and displaying overcurrent protection state information in a test case, wherein as shown in fig. 3, a displayed interface comprises: whether the amplitude, angle and frequency of Ua1, Ub1, Uc1, Ia1, Ib1, Ic1, Ua2, Ub2, Uc2, Ia2, Ib2 and Ic2 are direct current or not; whether the ending condition is manual triggering, time triggering or input quantity overturning triggering or not; whether the initial brake position is switched on or switched off; an action threshold; action time delay (ms), theoretical result is no action, switching on or switching off; the actual result is no action, closing or opening; actual time delay (ms); and the detection result is non-test, qualified or unqualified, the test time, the test state and the like, and a test report is automatically generated. By selecting corresponding specific test content for detection, a test result (as shown in fig. 4) can be directly obtained, automatic circulation among single test tasks is realized, human intervention in the test process is reduced, automatic closed-loop recording of test data and automatic generation of a test report are realized in a mode of automatically receiving and analyzing various types of protocol data of various levels, the degree of dependence of a test site on technicians is reduced, and the effect of releasing professional technicians is achieved. The customized service of the test case is supported, the automatic screening of the engineering test case and the automatic generation of the test scheme which take the engineering requirement as a starting point are realized, and the working efficiency of the test preparation and test process is improved.
The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or modifications within the technical scope of the present invention, and shall be covered by the scope of the present invention.
Claims (7)
1. A protection logic test system of a distribution automation terminal is characterized in that: the method comprises the following steps:
the distribution automation terminal is used for simulating the logic test of the distribution automation terminal;
the analog quantity output equipment is connected with the power distribution automation terminal and used for outputting test analog quantity;
the digital quantity input and output equipment is connected with the power distribution automation terminal and is used for outputting a test digital quantity; and
and the main control equipment is respectively connected with the analog quantity output equipment, the digital quantity input and output equipment and the distribution automation terminal, and is used for selecting corresponding protection logic test items according to the protection function test requirements of the distribution automation distribution terminal and the feed terminal, controlling the analog quantity output equipment to output corresponding test analog quantity and controlling the digital quantity input and output equipment to output corresponding test digital quantity according to the protection logic test items to perform corresponding protection logic tests on the distribution automation terminal, and feeding the results of the corresponding protection logic test item tests back to the main control equipment by the distribution automation terminal.
2. The protection logic test system of a distribution automation terminal according to claim 1, characterized in that: the main control equipment is provided with a client.
3. The protection logic test system of a distribution automation terminal according to claim 1, characterized in that: the main control equipment and the distribution automation terminal are connected in an RS232 serial port communication mode, and the communication conforms to an IEC101 protocol.
4. The protection logic test system of a distribution automation terminal according to claim 1, characterized in that: the protection logic test needs to test whether the tested distribution automation terminal can correctly respond to the protection logic under different conditions in different environments.
5. The protection logic test system of a distribution automation terminal according to claim 1, characterized in that: the protection logic test item includes: overcurrent protection detection, zero sequence current protection detection, zero sequence voltage protection detection, reclosing protection detection, secondary reclosing detection, loop closing function detection, power failure delay back opening detection, power failure delay back closing detection, single side voltage failure delay back closing detection, double side voltage-time forbidding closing detection, non-interruption current detection, grounding fault judgment detection and logic reset function detection.
6. The protection logic test system of a distribution automation terminal according to claim 1, characterized in that: the protection logic test items are controlled through a human-computer interface.
7. The protection logic test system of a distribution automation terminal according to claim 1, characterized in that: and the main control equipment automatically generates a test report according to the test result of the corresponding protection logic test item by the power distribution automation terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911197034.3A CN110988532A (en) | 2019-11-29 | 2019-11-29 | Protection logic test system of distribution automation terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911197034.3A CN110988532A (en) | 2019-11-29 | 2019-11-29 | Protection logic test system of distribution automation terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110988532A true CN110988532A (en) | 2020-04-10 |
Family
ID=70088142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911197034.3A Pending CN110988532A (en) | 2019-11-29 | 2019-11-29 | Protection logic test system of distribution automation terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110988532A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510642A (en) * | 2020-12-23 | 2021-03-16 | 广东电网有限责任公司佛山供电局 | Method for rapidly testing relay protection basic logic function of distribution network automation terminal |
| CN113866563A (en) * | 2021-09-30 | 2021-12-31 | 广东电网有限责任公司东莞供电局 | Voltage current type feeder automation test system |
| CN114441896A (en) * | 2021-12-30 | 2022-05-06 | 云南电网有限责任公司曲靖供电局 | Distribution network automation simulation platform and FTU detection method |
| CN115498774A (en) * | 2022-10-26 | 2022-12-20 | 珠海康晋电气股份有限公司 | Microcomputer type distribution automation station terminal based on multi-line measurement and control |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904228A (en) * | 2012-10-17 | 2013-01-30 | 南京因泰莱配电自动化设备有限公司 | Protection method and protection device of power distribution network |
| KR20130022760A (en) * | 2011-08-26 | 2013-03-07 | 한국전력공사 | System and method for managing a distribution system |
| CN104007366A (en) * | 2014-06-12 | 2014-08-27 | 国网上海市电力公司 | Feeder automation test system with automatic interference input function |
| CN104020761A (en) * | 2014-06-12 | 2014-09-03 | 国网上海市电力公司 | Automatic feeder testing system free of networking |
| CN105785199A (en) * | 2016-04-29 | 2016-07-20 | 国网福建省电力有限公司 | Multifunctional power distribution terminal integrated test system and operating method thereof |
-
2019
- 2019-11-29 CN CN201911197034.3A patent/CN110988532A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130022760A (en) * | 2011-08-26 | 2013-03-07 | 한국전력공사 | System and method for managing a distribution system |
| CN102904228A (en) * | 2012-10-17 | 2013-01-30 | 南京因泰莱配电自动化设备有限公司 | Protection method and protection device of power distribution network |
| CN104007366A (en) * | 2014-06-12 | 2014-08-27 | 国网上海市电力公司 | Feeder automation test system with automatic interference input function |
| CN104020761A (en) * | 2014-06-12 | 2014-09-03 | 国网上海市电力公司 | Automatic feeder testing system free of networking |
| CN105785199A (en) * | 2016-04-29 | 2016-07-20 | 国网福建省电力有限公司 | Multifunctional power distribution terminal integrated test system and operating method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510642A (en) * | 2020-12-23 | 2021-03-16 | 广东电网有限责任公司佛山供电局 | Method for rapidly testing relay protection basic logic function of distribution network automation terminal |
| CN113866563A (en) * | 2021-09-30 | 2021-12-31 | 广东电网有限责任公司东莞供电局 | Voltage current type feeder automation test system |
| CN113866563B (en) * | 2021-09-30 | 2024-02-13 | 广东电网有限责任公司东莞供电局 | Voltage-current feeder automation test system |
| CN114441896A (en) * | 2021-12-30 | 2022-05-06 | 云南电网有限责任公司曲靖供电局 | Distribution network automation simulation platform and FTU detection method |
| CN114441896B (en) * | 2021-12-30 | 2023-05-26 | 云南电网有限责任公司曲靖供电局 | Distribution network automatic simulation platform and FTU detection method |
| CN115498774A (en) * | 2022-10-26 | 2022-12-20 | 珠海康晋电气股份有限公司 | Microcomputer type distribution automation station terminal based on multi-line measurement and control |
| CN115498774B (en) * | 2022-10-26 | 2023-09-29 | 珠海康晋电气股份有限公司 | Microcomputer type distribution automation station terminal based on multi-line measurement and control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110988532A (en) | Protection logic test system of distribution automation terminal | |
| CN108983006B (en) | On-site type feeder automation switch terminal field uninterrupted full-automatic test method | |
| CN110579666A (en) | automatic test system for transformer relay protection equipment | |
| CN110954766B (en) | Voltage and current type feeder automatic testing method | |
| CN113162226A (en) | Primary side fault injection FA system level test system and method based on HIL | |
| CN110554304A (en) | hardware-in-loop test method and system suitable for automatic terminal | |
| CN115034405A (en) | New energy plant station T wiring line protection detection platform and method based on RTDS | |
| CN112649726B (en) | Switch class mechanical life test circuit and method | |
| CN206945939U (en) | A kind of detection means of display device for short circuit | |
| CN113391145A (en) | Test system of distribution automation feeder terminal | |
| CN204885910U (en) | Intelligent low tension distribution box | |
| CN116154948A (en) | Anti-interference electricity fast switching system of medium-voltage system | |
| CN116047286A (en) | Mechanical life test system and method for high-voltage switch equipment | |
| CN206759041U (en) | A kind of cable faults of distribution network detecting system | |
| CN113702736B (en) | Method, device and system for scheduled inspection of spare power automatic switching device and computer equipment | |
| CN113281603B (en) | Detection circuit and method for relay protection terminal | |
| CN110470938B (en) | Online detection method for substation/distribution automation system | |
| CN112731201B (en) | Single-phase earth fault studying and judging method and system in transient zero sequence power direction | |
| CN108199359A (en) | A kind of distribution control device and method | |
| CN116417968B (en) | Low-voltage relay protection method based on low-code controller | |
| CN110460046B (en) | Intelligent power distribution management system and method applied to ships | |
| CN217212907U (en) | Main transformer high-voltage side output power real-time calculation system based on double-bus switching | |
| CN113884942B (en) | SCADA data-based grounding line selection alarm correctness checking method | |
| CN211627713U (en) | Portable testing device | |
| CN111355299B (en) | Data acquisition and processing method for secondary device of power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |