CN109444671B - On-site feeder automation remote test system - Google Patents
On-site feeder automation remote test system Download PDFInfo
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- CN109444671B CN109444671B CN201811571183.7A CN201811571183A CN109444671B CN 109444671 B CN109444671 B CN 109444671B CN 201811571183 A CN201811571183 A CN 201811571183A CN 109444671 B CN109444671 B CN 109444671B
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- remote
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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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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The technical scheme shown in the embodiment of the application can realize remote fault testing without field power failure at any time and any place, does not influence normal operation, is not limited by regions and time, can check the correctness of an in-situ feeder automation action strategy and logic, searches defects and improves the power supply reliability; the remote test system does not need power failure test, thereby reducing the number of power failure hours caused by the test; the remote testing system is convenient and flexible to operate, does not need a large amount of manpower and equipment resources, and is economical and efficient in testing process.
Description
Technical Field
The invention relates to the technical field of automatic detection, in particular to an on-site feeder automation remote test system.
Background
With the end of the Kunming and Yuxi distribution network automatic test points, the construction of the Yunnan distribution network automatic system obtains initial results. In combination with the current situation of a power grid, Yunnan will be mainly popularized to an on-site type feeder automation system in future.
At present, a blank exists in an in-situ feeder automation testing technology, and the whole function and the service performance of a feeder automation system cannot be correctly judged. Aiming at other types of feeder line automatic testing technologies, a plurality of relay protection instruments are generally adopted, simple function inspection is completed under the support of equipment such as a terminal, a main station and the like and equipment suppliers, field power failure is generally needed during inspection, and the number of users in power failure caused by testing work is increased; and because of test equipment, test technique and test time, etc. difficult to carry on the complete test to the circuit to be measured; in the test process, the demand of personnel and equipment is large, the efficiency is low, and the economic benefit is not high.
However, the remote testing system is not influenced by the field environment and limited by time, can realize remote fault testing without power outage on the field at any time and any place, does not influence normal operation, can check the correctness of an on-site type feeder automation action strategy and logic, searches defects and improves the power supply reliability; the remote testing system is convenient and flexible to operate, does not need a large amount of manpower and equipment resources, and is small in testing workload, high in efficiency of a testing process and high in economic benefit.
Disclosure of Invention
The invention aims to provide an in-situ feeder automation remote test system to make up for the technical blank that an effective method is not available currently and is used for checking the overall function and performance of the in-situ feeder automation system.
The embodiment of the application shows an in-situ feeder automation remote test system, the system includes:
the remote control system comprises remote equipment, a system main station, a feeder terminal and a field switch;
the remote equipment is communicated with the system main station and the feeder terminal through a wireless 4G network;
the remote equipment is internally provided with an analysis module for analyzing local type feeder automation action logic and strategy problems and system defects;
the system main station is used for remotely testing the test module;
the test module is used for carrying out a test mode during remote testing when the remote equipment is connected with the system main station;
the field switch is internally provided with a normal module and a forced module for switch non-operation during remote testing.
Optionally, a normal operation module is further arranged in the system main station;
and the normal operation module is used for a normal operation mode when no remote equipment participates in the remote test.
Optionally, the system master station is configured to control the start and end of the test of the remote device.
Optionally, the system master station receives a remote test command of the remote equipment to be in a test mode, and controls the field switch to be in a forced mode;
and the system main station accepts the remote test command to be in a normal operation mode, refuses the remote device to input current and voltage to the feeder terminal, and refuses the field switch to be converted into a forced mode.
Optionally, the feeder terminal includes: 4 current channels, and 4 voltage channels.
Optionally, the feeder terminal can detect the current and voltage of the feeder in a test mode and a normal operation mode;
if a feeder line fault occurs in the remote test process, a feeder line terminal detects fault current and fault voltage, and a field switch is positioned, isolated and power supply is recovered.
Optionally, when the field switch is in a normal operation mode, the forced module is closed, and the normal module is operated;
and in the test mode, starting the forced module and the normal module.
Optionally, when the forced module operates, and when the feeder terminal receives a fault current voltage input to the forced module by the remote device, the feeder terminal feeds back the device switching value signal to the remote device through the 4G network.
Optionally, the remote device judges the correctness of the local feeder automation response strategy and the action logic according to the fault position and the device switching value signal, if the fault occurs, the analysis module is started, a problem analysis mode and a system defect searching mode are entered, a problem list and a modification suggestion are generated, and the problem list and the modification suggestion are fed back to the system main station through a 4G network;
and if the remote testing result is correct, sending a command for ending the remote testing to the system main station.
As can be seen from the above technical solutions, the present application illustrates an in-situ feeder automation remote test system, where the system includes: the remote control system comprises remote equipment, a system main station, a feeder terminal and a field switch; the remote equipment is communicated with the system main station and the feeder terminal through a wireless 4G network; the remote equipment is internally provided with an analysis module for analyzing local type feeder automation action logic and strategy problems and system defects; the system main station is used for remotely testing the test module; the test module is used for carrying out a test mode during remote testing when the remote equipment is connected with the system main station; the field switch is internally provided with a normal module and a forced module for switch non-operation during remote testing. The technical scheme shown in the embodiment of the application can realize remote fault test without power failure on site at any time and any place, does not influence normal operation, is not limited by regions and time, can check the correctness of an on-site feeder automation action strategy and logic, searches defects and improves the power supply reliability; the remote test system does not need power failure test, thereby reducing the number of power failure hours caused by the test; the remote testing system is convenient and flexible to operate, does not need a large amount of manpower and equipment resources, and is economical and efficient in testing process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic diagram of an in-situ feeder automation remote test system in accordance with a preferred embodiment;
FIG. 2 illustrates a built-in block diagram of a remote device in accordance with a preferred embodiment;
FIG. 3 is a block diagram showing the system master station built in accordance with a preferred embodiment;
fig. 4 is a diagram illustrating a feeder terminal built-in module according to a preferred real-time embodiment;
FIG. 5 is a diagram illustrating a built-in block diagram of a field switch in accordance with a preferred embodiment;
FIG. 6 is a flow chart illustrating a testing method according to a preferred embodiment.
Illustration of the drawings: 1-remote equipment, 11-analysis module, 2-system main station, 21-normal operation module, 22-test module, 3-feeder terminal, 4-field switch, 41-normal module and 42-forced module.
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 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.
Referring to fig. 1-6, an in-situ feeder automation remote test system is shown in an embodiment of the present application, the system comprising:
the remote control system comprises remote equipment 1, a system main station 2, a feeder terminal 3 and a field switch 4;
the remote device 1 is communicated with the system main station 2, and the feeder terminal 3 is communicated through a wireless 4G network;
the remote device 1 is internally provided with an analysis module 11 for analyzing local type feeder automation action logic and strategy problems and system defects;
the system main station 2 is used for a test module 22 for remote testing;
the test module 22 is used for performing a test mode during remote testing when the remote device 1 is connected with the system master station 2;
the field switch 4 houses a normal module 41 and a force module 42 for switch inactivity during remote testing.
The technical scheme shown in the embodiment of the application installs the forcing module on each field switch of the line to be tested, and the forcing module allows the field switch to send tripping and closing signals to prevent the actual outlet from tripping, so that the line power failure caused by the tripping of the switch in the test process is avoided.
According to the technical scheme shown in the embodiment of the application, the field test on the in-place feeder automation in operation can be realized under the condition of no power failure, and the operability is strong; the device can avoid the crossing with the original wireless public network in the field test process, and has high safety; the complete test can be realized on the line to be tested, and the efficiency of searching system defects before the automatic operation of the local feeder is improved; the action reliability of feeder automation in practical application is improved, and a basis is provided for verifying the correctness of the local feeder automation response strategy and action logic.
According to the technical scheme shown in the embodiment of the application, the wireless 4G network and the original wireless public network operate independently at the same time.
The feeder automation terminal feeds back the switching value signal of the device to the test host through the wireless 4G network test channel, and the actually-operated data is transmitted by using the wireless public network, so that the network and the original wireless public network can be prevented from being crossed during the test.
Optionally, a normal operation module 21 is further disposed in the system master station 2;
the normal operation module 21 is configured to operate normally when no remote device 1 participates in the remote test.
Specifically, a normal operation module 21 and a test module 22 for remote testing are arranged in the system master station 2; the normal operation module 21 is used for a mode of normal operation when no remote device participates in the remote test; the test module 22 is used for a test mode when the remote device is connected to a system main station for remote testing.
Optionally, the system master station 2 is configured to control the start and end of the test of the remote device 1.
The remote device 1 can send a remote test command and a remote test ending command to the system main station aiming at any feeder line, only starts a remote test program under the condition that the system main station 2 confirms the acceptance command, if the system main station refuses the acceptance command, the remote device 1 cannot start the remote test, only can send the command again, and waits for the confirmation of the system main station 2.
Optionally, the system master station 2 is in a test mode when receiving the remote test command of the remote device 1, and controls the field switch 4 to be in a forced mode;
the system main station 2 accepts the remote test command to be in a normal operation mode, refuses the remote device 1 to input current and voltage to the feeder terminal 3, and refuses the field switch to be converted into a forced mode.
Optionally, the feeder terminal 3 includes: 4 current channels, and 4 voltage channels.
Optionally, the feeder terminal 3 can detect the current and the voltage of the feeder in a test mode and a normal operation mode;
if a feeder fault occurs in the remote test process, the feeder terminal 3 detects the fault current and the fault voltage, and the field switch 4 positions, isolates and restores the power supply.
The system main station 2 only switches to a test mode after receiving a remote test command of the remote equipment, and allows the field switch to a forced state; the system main station 2 is in a normal operation mode when refusing to accept the remote test command, the remote device 1 is not allowed to input current and voltage to the terminal 3, and the field switch is not operated and is switched to a forced mode.
Optionally, when the field switch 4 is in the normal operation mode, the forcing module 42 is turned off to operate the normal module 41;
in the test mode, the forcing module 42 is turned on and the normal module 41 is turned on.
Alternatively, when the forcing module 42 operates, when the feeder terminal 3 receives a fault current voltage input thereto by the remote device 1, the feeder terminal 3 feeds back a device switching value signal to the remote device 1 through the 4G network.
Optionally, the remote device 1 judges the correctness of the local feeder automation response strategy and the action logic according to the fault position and the device switching value signal, if the fault occurs, the analysis module 11 is started, the mode of analyzing the problem and searching the system defect is entered, a problem list and a modification suggestion are generated, and the problem list and the modification suggestion are fed back to the system main station 2 through a 4G network;
if it is correct, an end remote test command is issued to the system master 2.
The embodiment of the application shows an in-situ feeder automation remote test system, the system includes: the remote control system comprises remote equipment, a system main station, a feeder terminal and a field switch; the remote equipment is communicated with the system main station and the feeder terminal through a wireless 4G network; the remote equipment is internally provided with an analysis module for analyzing local type feeder automation action logic and strategy problems and system defects; the system main station is used for remotely testing the test module; the test module is used for carrying out a test mode during remote testing when the remote equipment is connected with the system main station; the field switch is internally provided with a normal module and a forced module for switch non-operation during remote testing. The technical scheme shown in the embodiment of the application can realize remote fault test without power failure on site at any time and any place, does not influence normal operation, is not limited by regions and time, can check the correctness of an on-site feeder automation action strategy and logic, searches defects and improves the power supply reliability; the remote test system does not need power failure test, thereby reducing the number of power failure hours caused by the test; the remote testing system is convenient and flexible to operate, does not need a large amount of manpower and equipment resources, and is economical and efficient in testing process.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (1)
1. An in-situ feeder automation remote test system, the system comprising:
the remote control system comprises a remote device (1), a system main station (2), a feeder terminal (3) and a field switch (4);
the remote device (1) is communicated with the system main station (2) and the feeder terminal (3) through a wireless 4G network;
the remote equipment (1) is internally provided with an analysis module (11) for analyzing local feeder automation action logic and strategy problems and system defects;
the system main station (2) is used for a test module (22) for remote testing;
the test module (22) is used for carrying out a test mode during remote testing when the remote equipment (1) is connected with the system main station (2);
the field switch (4) is internally provided with a normal module (41) and a forced module (42) for switch non-action in remote test;
a normal operation module (21) is also arranged in the system main station (2);
the normal operation module (21) is used for a mode of normal operation when no remote equipment (1) participates in remote testing;
the system main station (2) is used for controlling the starting and the ending of the test of the remote equipment (1);
the system main station (2) is in a test mode when receiving a remote test command of the remote equipment (1), and controls the field switch (4) to be switched to a forced mode;
the system main station (2) accepts the remote test command to be in a normal operation mode, refuses the remote device (1) to input current and voltage to the feeder terminal (3), and refuses the field switch to be converted into a forced mode;
the feeder terminal (3) comprises: 4 current channels, and, 4 voltage channels;
the feeder terminal (3) can detect the current and the voltage of the feeder in a test mode and a normal operation mode;
if a feeder line fault occurs in the remote test process, a feeder line terminal (3) detects fault current and fault voltage, and a field switch (4) is positioned, isolated and restored to supply power;
when the field switch (4) is in a normal operation mode, the field switch closes the forced module (42) to operate the normal module (41);
in the test mode, a forcing module (42) and a normal module (41) are started;
when the forced module (42) operates, when the feeder terminal (3) receives fault current voltage input by the remote equipment (1), the feeder terminal (3) feeds back a device switching value signal to the remote equipment (1) through a 4G network;
the remote equipment (1) judges the correctness of an on-site feeder automation response strategy and action logic according to the fault position and the device switching value signal, if the on-site feeder automation response strategy and the action logic are wrong, an analysis module (11) is started, a problem analysis mode and a system defect searching mode are entered, a problem list and a modification suggestion are generated, and the problem list and the modification suggestion are fed back to a system main station (2) through a 4G network;
if the remote test is correct, a command for ending the remote test is sent to the system main station (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571183.7A CN109444671B (en) | 2018-12-21 | 2018-12-21 | On-site feeder automation remote test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811571183.7A CN109444671B (en) | 2018-12-21 | 2018-12-21 | On-site feeder automation remote test system |
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| CN109444671A CN109444671A (en) | 2019-03-08 |
| CN109444671B true CN109444671B (en) | 2021-08-24 |
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| CN201811571183.7A Active CN109444671B (en) | 2018-12-21 | 2018-12-21 | On-site feeder automation remote test system |
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