CN110988593B - Intelligent distributed feeder automation test method - Google Patents
Intelligent distributed feeder automation test method Download PDFInfo
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- CN110988593B CN110988593B CN201911196838.1A CN201911196838A CN110988593B CN 110988593 B CN110988593 B CN 110988593B CN 201911196838 A CN201911196838 A CN 201911196838A CN 110988593 B CN110988593 B CN 110988593B
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- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
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- 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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an intelligent distributed feeder automation test method, which relates to the technical field of automation test of distribution automation terminals of a power distribution network, and is characterized in that intelligent distributed feeder automation equipment is connected by adopting a distributed feeder automation method, the intelligent distributed feeder automation equipment at least comprises four switches, wherein some switches are provided with a power distribution terminal and a tester, and some switches are provided with a protection device and a tester; then setting a switch and a tester, wherein the tester has a switch position interface acquisition function and can output detected voltage and current according to a state sequence; after the test, the tester reads the current and the voltage of the corresponding switch, outputs a state sequence to output a voltage signal and a current signal, judges whether the switch action is correct according to the acquired switch state, and transmits a judgment result to the master control platform. The method provided by the invention has the advantages of simple wiring, concise steps and convenience for mastering, and can provide a test method for debugging, running and maintaining intelligent distributed feeder automation equipment.
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 an intelligent distributed feeder automation testing method.
Background
With the rapid development of national economy, the national living standard is continuously improved, and higher requirements are put forward on the requirements on power supply reliability. The feeder automation technology is an important component of a distribution automation system, is an automation technology which is applied to a distribution network feeder, can monitor the information of the electric quantity on the feeder in real time, automatically position, isolate faults and recover the power supply of a non-fault section when the feeder fails, and has great significance for timely removing fault points, recovering the power supply, improving the reliability of the power supply of the distribution network, improving the power supply capacity and the economical efficiency, reducing the labor intensity and the like.
The intelligent distributed feeder automation has the advantages of fast and accurate fault point isolation, short-time recovery of non-fault section power supply, high automation of fault location and non-fault section power supply recovery without manual intervention, independence of a power distribution automation main station and the like, and is widely applied to areas with high power supply reliability in China.
Currently, there is a lack of testing methods and means for intelligent distributed feeder automation of installed equipment prior to commissioning and during operational maintenance.
Disclosure of Invention
The invention aims to provide an intelligent distributed feeder automation test method, so that the defect that the existing test method for intelligent distributed feeder automation before operation and in operation and maintenance of installed equipment is lacked is overcome.
In order to achieve the above object, the present invention provides an intelligent distributed feeder automation test method, which comprises the following steps:
s1, connecting intelligent distributed feeder automation equipment by adopting a distributed feeder automation method, wherein the intelligent distributed feeder automation equipment at least comprises four switches, three switches are respectively provided with a power distribution terminal and a tester which are connected, the other switch is provided with a protection device and a tester which are connected, and the tester is respectively connected with the switches and a main control platform;
s2, setting the switches as required, setting two of the three switches connected with the power distribution terminal as sectional switches, and setting the other of the three switches connected with the power distribution terminal as a communication switch; setting a switch connected with the protection device to be in an overcurrent protection mode, and setting overcurrent action time; setting rated voltage, rated current and overcurrent protection current of the switch; and setting a switch state;
s3, setting the testers according to requirements, wherein the testers are provided with devices with switch position interface acquisition functions and can output detected voltage and current according to state sequences;
and S4, testing, wherein the tester reads the current and voltage of the corresponding switch, outputs a state sequence to output a voltage signal and a current signal, judges whether the switch action is correct according to the acquired switch position state, and simultaneously transmits the judgment result to the main control platform.
Further, intelligence distributed feeder automation equipment includes four switches, is respectively: a first switch, a second switch, a third switch and a fourth switch;
the first switch is connected with a first power distribution terminal, the first power distribution terminal is connected with a first tester, and the first tester is respectively connected with the first switch and the master control platform;
the second switch is connected with a second power distribution terminal, the second power distribution terminal is connected with a second tester, and the second tester is respectively connected with the second switch and the master control platform;
the third switch is connected with a third power distribution terminal, the third power distribution terminal is connected with a third tester, and the third tester is respectively connected with the third switch and the master control platform;
the fourth switch is connected with the protection device, the protection device is connected with the fourth tester, and the fourth tester is respectively connected with the fourth switch and the master control platform.
Furthermore, the tester is connected with the main control platform through a 4G wireless network.
Further, the tester carries out time synchronization through a GPS.
Further, in S2, configuring the first switch and the second switch as segmented switches; configuring the third switch as a tie switch; configuring the fourth switch into an overcurrent protection mode, and setting the action time to be 300 ms; rated voltage of the four switches is set to be 100V, and rated current is set to be 5A; the overcurrent protection settings are all 5A.
Further, whether the switch action is correct or not is judged according to the states before and after the switch test, if the state of the switch connected with the power distribution terminal during the test is opposite to the state after the test, the switch action is correct, otherwise, the switch action is wrong; and if the state of the switch connected with the protection device during testing is the same as the state after testing, the switch acts correctly, otherwise, the switch acts incorrectly.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an intelligent distributed feeder automation test method, which is characterized in that intelligent distributed feeder automation equipment is connected by adopting a distributed feeder automation method, the intelligent distributed feeder automation equipment at least comprises four switches, wherein three switches are respectively provided with a power distribution terminal and a tester, and the other switch is provided with a protection device and a tester; then setting a switch, and setting a tester, wherein the tester is provided with a device with a switch position interface acquisition function and can output detected voltage and current according to a state sequence; after testing, the tester reads the current and the voltage of the corresponding switch, outputs a state sequence to output a voltage signal and a current signal, judges whether the switch action is correct according to the collected switch position state, and simultaneously transmits a judgment result to the master control platform. Therefore, the method provided by the invention has the advantages of simple wiring, concise steps and convenience for mastering, and can provide a test method for debugging, operation and maintenance of intelligent distributed feeder automation equipment.
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 flow chart of a method for intelligent distributed feeder automation testing in accordance with the present invention;
FIG. 2 is a schematic diagram of the wiring principle of an embodiment of the present invention;
the system comprises a first switch 1, a second switch 2, a third switch 3, a fourth switch 4, a first power distribution terminal 21, a second power distribution terminal 22, a third power distribution terminal 23, a first tester 31, a second tester 32, a third tester 33, a fourth tester 34, a protection device 5 and a main control platform 6.
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 intelligent distributed feeder automation test method provided by the present invention includes the following steps:
and S1, connecting intelligent distributed feeder automation equipment by adopting a distributed feeder automation method, wherein the intelligent distributed feeder automation equipment at least comprises four switches, three switches are respectively provided with a power distribution terminal and a tester which are connected, the other switch is provided with a protection device and a tester which are connected, and the tester is respectively connected with the switches and the main control platform 6.
The tester is connected with the main control platform 6 through a 4G wireless network.
The tester carries out time synchronization through the GPS.
S2, setting required switches according to requirements, setting two switches of three switches connected with the power distribution terminal as sectional switches, and setting the other switch of the three switches connected with the power distribution terminal as a communication switch; setting a switch connected with the protection device 5 to be in an overcurrent protection mode, and setting overcurrent action time; setting rated voltage, rated current and overcurrent protection current of the switch; and sets the switch state.
S3, setting corresponding testers according to requirements, wherein the testers are all provided with devices with switch position interface acquisition functions and can output detected voltage and current according to state sequences.
And S4, testing after the setting of S1-S3, reading the current and voltage of the corresponding switch by the tester, outputting a state sequence to output a voltage signal and a current signal, judging whether the switch action is correct according to the acquired switch position state, and transmitting a judgment result to the main control platform 6. Judging whether the switching action is correct or not according to the states before and after the switching test, wherein if the state of the switch connected with the power distribution terminal in the test is opposite to the state after the test, the switching action is correct, otherwise, the switching action is wrong; if the state of the switch connected to the protection device 5 at the time of the test is the same as the state after the test, the switch operates correctly, otherwise, the switch operates incorrectly.
The intelligent distributed feeder automation test method of the invention is explained in detail through embodiments, so that the person skilled in the art can understand the invention more:
s1, as shown in fig. 2, the intelligent distributed feeder automation device includes four switches, which are: a first switch 1, a second switch 2, a third switch 3 and a fourth switch 4; the first switch 1 is connected with a first power distribution terminal 21, and a voltage acquisition port U of the first power distribution terminal 211And a current collecting port I1The first tester 31 is connected with the first switch 1 and the main control platform 6 respectively; the second switch 2 is connected with a second power distribution terminal 22, and a voltage acquisition port U of the second power distribution terminal 222And a current collecting port I2The second tester 32 is connected with the second switch 2 and the main control platform 6 respectively; the third switch 3 is connected with a third power distribution terminal 23, and a voltage acquisition port U of the third power distribution terminal 233And a current collecting port I3The third tester 33 is connected with the third switch 3 and the main control platform 6 respectively; the fourth switch 4 is connected with a protection device 5, and a voltage acquisition port U of the protection device 54And a current collecting port I4And the fourth tester 43 is connected with the fourth switch 4 and the main control platform 6 respectively, and the fourth tester 34 is connected with the fourth switch 4 and the main control platform 6.
The first tester 31, the second tester 32, the third tester 33 and the fourth tester 34 are connected with the main control platform 6 through a 4G wireless network.
The first tester 31, the second tester 32, the third tester 33, and the fourth tester 34 time-synchronize by GPS.
S2, setting a needed switch, and configuring the first switch 1 and the second switch 2 as sectional switches; the third switch 3 is configured as a tie switch; the fourth switch 4 is configured to be in an overcurrent protection mode, and the action time is set to be 300 ms; rated voltage of the four switches is set to be 100V, and rated current is set to be 5A; the overcurrent protection settings are all 5A.
During testing, the first switch 1, the second switch 2 and the fourth switch 4 are in a closing state, and the third switch 3 is in an opening state.
S3, setting a corresponding tester;
the first state voltage output of the first tester 31, the second tester 32 and the fourth tester 34 is 100V, and the current output is 1A; the voltage output of the first state of the third tester 33 is 100V, the current output is 0A, the end time is configured as time trigger, and the end time is the same;
the voltage output of the second state of the first tester 31 and the fourth tester 34 is 0V, the current output is 5.25A, and the ending time is configured as the action of the switch 1;
the third state voltage output of the first tester 31 and the fourth tester 34 is 100V, the current output is 1A, the end time is configured in a time-triggered manner, and the set time is 10S.
And S4, if the tester finally reads that the first switch 1 and the second switch 2 are in the opening state and the switches 3 and 4 are in the closing state, all the switches pass the test, and the switch action is correct.
In conclusion, the intelligent distributed feeder automation testing method is simple in wiring, concise in steps and convenient to master, and can provide a testing method for debugging, running and maintaining of intelligent distributed feeder automation equipment.
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 (4)
1. An intelligent distributed feeder automation test method is characterized in that: the method comprises the following steps:
s1, connecting intelligent distributed feeder automation equipment by adopting a distributed feeder automation method, wherein the intelligent distributed feeder automation equipment at least comprises four switches, three switches are respectively provided with a power distribution terminal and a tester which are connected, the other switch is provided with a protection device and a tester which are connected, and the tester is respectively connected with the switches and a main control platform;
s2, setting the switches as required, setting two of the three switches connected with the power distribution terminal as sectional switches, and setting the other of the three switches connected with the power distribution terminal as a communication switch; setting a switch connected with the protection device to be in an overcurrent protection mode, and setting overcurrent action time; setting rated voltage, rated current and overcurrent protection current of the switch; and setting a switch state;
the intelligent distributed feeder automation equipment comprises four switches which are respectively: a first switch, a second switch, a third switch and a fourth switch;
the first switch is connected with a first power distribution terminal, the first power distribution terminal is connected with a first tester, and the first tester is respectively connected with the first switch and the master control platform;
the second switch is connected with a second power distribution terminal, the second power distribution terminal is connected with a second tester, and the second tester is respectively connected with the second switch and the master control platform;
the third switch is connected with a third power distribution terminal, the third power distribution terminal is connected with a third tester, and the third tester is respectively connected with the third switch and the master control platform;
the fourth switch is connected with the protection device, the protection device is connected with a fourth tester, and the fourth tester is respectively connected with the fourth switch and the master control platform;
in S2, configuring the first switch and the second switch as segmented switches; configuring the third switch as a tie switch; configuring the fourth switch into an overcurrent protection mode, and setting the action time to be 300 ms; rated voltage of the four switches is set to be 100V, and rated current is set to be 5A; the overcurrent protection setting is 5A;
s3, setting the testers according to requirements, wherein the testers are provided with devices with switch position interface acquisition functions and can output detected voltage and current according to state sequences;
and S4, testing, wherein the tester reads the current and voltage of the corresponding switch, outputs a state sequence to output a voltage signal and a current signal, judges whether the switch action is correct according to the acquired switch position state, and simultaneously transmits the judgment result to the main control platform.
2. The intelligent distributed feeder automation test method of claim 1, wherein: the tester is connected with the main control platform through a 4G wireless network.
3. The intelligent distributed feeder automation test method of claim 1, wherein: the tester carries out time synchronization through the GPS.
4. The intelligent distributed feeder automation test method of claim 1, wherein: judging whether the switch action is correct or not according to the states before and after the switch test, if the state of the switch connected with the power distribution terminal during the test is opposite to the state after the test, the switch action is correct, otherwise, the switch action is wrong; and if the state of the switch connected with the protection device during testing is the same as the state after testing, the switch acts correctly, otherwise, the switch acts incorrectly.
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| CN201911196838.1A CN110988593B (en) | 2019-11-29 | 2019-11-29 | Intelligent distributed feeder automation test method |
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| CN201911196838.1A CN110988593B (en) | 2019-11-29 | 2019-11-29 | Intelligent distributed feeder automation test method |
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| CN110988593B true CN110988593B (en) | 2022-04-12 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310803B1 (en) * | 2012-04-04 | 2013-09-25 | 한전케이디엔주식회사 | System and method for serial communication interface between frtu(feeder remote terminal unit) and switch of a distribution automation system |
| CN104122474A (en) * | 2014-08-06 | 2014-10-29 | 国网上海市电力公司 | Intelligent distributed feeder automation logic test system |
| CN104730397A (en) * | 2015-04-09 | 2015-06-24 | 中国电力科学研究院 | Interoperation test system and method between distribution automation terminals |
| CN106655513A (en) * | 2016-12-28 | 2017-05-10 | 上海金智晟东电力科技有限公司 | In-situ feeder automation test system |
| CN108020742A (en) * | 2017-12-01 | 2018-05-11 | 国家电网公司 | The live Auto-Test System and method of distribution feeder automation |
-
2019
- 2019-11-29 CN CN201911196838.1A patent/CN110988593B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101310803B1 (en) * | 2012-04-04 | 2013-09-25 | 한전케이디엔주식회사 | System and method for serial communication interface between frtu(feeder remote terminal unit) and switch of a distribution automation system |
| CN104122474A (en) * | 2014-08-06 | 2014-10-29 | 国网上海市电力公司 | Intelligent distributed feeder automation logic test system |
| CN104730397A (en) * | 2015-04-09 | 2015-06-24 | 中国电力科学研究院 | Interoperation test system and method between distribution automation terminals |
| CN106655513A (en) * | 2016-12-28 | 2017-05-10 | 上海金智晟东电力科技有限公司 | In-situ feeder automation test system |
| CN108020742A (en) * | 2017-12-01 | 2018-05-11 | 国家电网公司 | The live Auto-Test System and method of distribution feeder automation |
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