CN108983006B - On-site type feeder automation switch terminal field uninterrupted full-automatic test method - Google Patents
On-site type feeder automation switch terminal field uninterrupted full-automatic test method Download PDFInfo
- Publication number
- CN108983006B CN108983006B CN201810911045.2A CN201810911045A CN108983006B CN 108983006 B CN108983006 B CN 108983006B CN 201810911045 A CN201810911045 A CN 201810911045A CN 108983006 B CN108983006 B CN 108983006B
- Authority
- CN
- China
- Prior art keywords
- fault
- switch
- feeder
- switch terminal
- power distribution
- 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.)
- Active
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)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a field uninterrupted full-automatic testing method for an in-situ type feeder automation switch terminal, relates to the technical field of distribution automation, and is suitable for field uninterrupted automatic testing of voltage-time type, voltage-current time type, national grid self-adaption type, voltage-current time + relay protection type, closing quick-break type and other in-situ type feeder automation equipment. The feeder automatic intelligent tester with programmable function and the feeder working condition switch self-adaptive simulator are used to complete the full-automatic test of related functions and technical indexes of the distribution switch terminal in the whole process of fault occurrence, fault judgment, fault isolation and non-fault area restoration power supply under the conditions of transient fault and permanent fault at one time under the normal running condition of uninterrupted power supply of the tested switch equipment under various conditions of fault occurrence, fault judgment, fault isolation, irrelevant branch and the like of the tested distribution switch terminal, and simultaneously automatically generate a test report which can be stored and output on site or uploaded to a cloud platform.
Description
Technical Field
The invention relates to the technical field of distribution automation, in particular to a field uninterrupted full-automatic testing method for an in-situ feeder automation switch terminal.
Background
The invention discloses a secondary injection test method of a power distribution automation system, which is invented by Liujian of Shaanxi institute of electrical science and research, and the like. The invention discloses a testing method for synchronous coordination of main station injection and secondary injection of a power distribution automation system, which is mainly suitable for a centralized power distribution automation mode. Neither of the two inventions can carry out on-site uninterrupted test on FA function of in-situ type feeder line automatic switch terminal equipment, and can also realize full-automatic on-site test of feeder lines. The invention patent of Liujia et al, a 10kV feeder short circuit test method, provides a 10kV feeder short circuit test method, by directly connecting a specially-made impedance element to a 10kV overhead feeder, a real controllable 10kV short circuit fault is formed, so that the fault processing function of in-situ type feeder automation equipment can be tested, but a real short circuit accident of Nx 2 times (N is the number of feeder sections) needs to be manufactured, the impact on a distribution network is large, the safety measure requirement is high, potential safety hazards exist, and multiple times of power failure and power transmission are needed. The test preparation work is complex, the test time is long, the test is mainly used for scientific research tests, and the large-scale popularization and application in actual engineering are difficult.
A large amount of research is carried out on the power distribution automation system testing technology by Shanxi institute of Electrical science, Liujian professor and other people in China and abroad power distribution automation engineering technical personnel, a plurality of patents are obtained, a series of papers are published, monographs such as 'power distribution automation system testing technology' are published, and the papers of domestic and foreign power distribution automation testing and the like do not mention the field uninterrupted full-automatic testing method of local feeder automation equipment.
In summary, effective methods and testing means for field uninterrupted full-automatic testing of in-situ feeder automation equipment are still lacking in distribution automation at present.
Disclosure of Invention
The embodiment of the invention provides a field uninterrupted full-automatic testing method for an in-situ type feeder automation switch terminal, which can solve the problems in the prior art.
The invention provides a field uninterrupted full-automatic test method for an in-situ type feeder automation switch terminal, which comprises an uninterrupted test method for an in-situ type section switch terminal and an uninterrupted test method for an in-situ type interconnection switch terminal;
the on-site section switch terminal uninterrupted power test method comprises the following steps:
selecting a sectional switch test scheme in a tested in-situ type feeder automatic switch type in a feeder automatic intelligent tester or a cloud platform;
loading the selected test scheme;
after confirming that the selected power distribution switch in the test scheme is consistent with the field switch and the state parameter setting in the test scheme is consistent with the feeder automation constant value of the current tested switch terminal, connecting a feeder automation intelligent tester and a feeder switch working condition self-adaptive simulator to the tested switch terminal, disconnecting the PT power supply from the tested switch terminal, switching to the feeder switch working condition self-adaptive simulator, and then accessing the tested switch terminal; disconnecting a control loop connecting line from a tested switch terminal to a field switch, connecting the control loop of the tested switch terminal to a feeder switch working condition self-adaptive simulator, disconnecting a current loop of the field switch and a CT loop of the tested switch terminal, and connecting the current loop of the feeder automation intelligent tester to the tested switch terminal;
the feeder automation intelligent tester automatically completes the following tests according to the test scheme:
three-remote simulation test of the normal operation condition of the feeder line of the power distribution network;
testing instantaneous faults of a feeder line of the power distribution network;
testing a non-boundary section switch terminal at the upstream of a fault section under the condition of permanent fault of a feeder line of a power distribution network;
testing a boundary section switch terminal at the upstream of a fault section under the condition of permanent fault of a feeder line of a power distribution network;
testing a downstream boundary section switch terminal of a fault section under the condition of permanent fault of a feeder line of a power distribution network;
testing a non-boundary section switch terminal at the downstream of a fault section under the condition of permanent fault of a feeder line of the power distribution network;
testing a section switch terminal of a fault section irrelevant branch under instantaneous fault of a feeder line of the power distribution network;
testing the functions of the section switch terminal of the independent branch in the fault section under the condition of permanent fault of the feeder line of the power distribution network;
the on-site type tie switch terminal uninterrupted power supply test method comprises the following steps:
selecting a testing scheme of an interconnection switch in a tested in-situ type feeder automation switch type in a feeder automation intelligent tester or a cloud platform;
after confirming that the selected power distribution switch in the test scheme is consistent with the field switch and the state parameter setting in the test scheme is consistent with the feeder automation constant value of the current tested switch terminal, connecting a feeder automation intelligent tester and a feeder switch working condition self-adaptive simulator to the tested switch terminal, disconnecting the PT power supply from the tested switch terminal, switching to the feeder switch working condition self-adaptive simulator, and then accessing the tested switch terminal; disconnecting a control loop connecting line from a tested switch terminal to a field switch, connecting the control loop of the tested switch terminal to a feeder switch working condition self-adaptive simulator, disconnecting a current loop of the field switch and a CT loop of the tested switch terminal, and connecting the current loop of the feeder automation intelligent tester to the tested switch terminal;
the feeder automation intelligent tester automatically completes the following tests according to the test scheme:
three-remote simulation test of the normal operation condition of the feeder line of the power distribution network;
testing a downstream boundary tie switch terminal of a fault section under a permanent fault of a feeder line of the power distribution network;
testing a non-boundary interconnection switch terminal at the downstream of a fault section under the permanent fault of a feeder line of the power distribution network;
the feeder switch working condition self-adaptive simulator comprises a single chip microcomputer, a programmable logic array, a liquid crystal display unit, an input/output interface circuit, a feeder working condition simulation circuit and a self-adaptive control interface circuit;
the single chip microcomputer is electrically connected with the liquid crystal display unit, the input/output interface circuit and the programmable logic array, the feeder line working condition simulation circuit and the self-adaptive control interface circuit are electrically connected with the programmable logic array, the feeder line working condition simulation circuit is electrically connected with an external PT power supply and a tested terminal, the self-adaptive control interface circuit is electrically connected with the tested terminal, and the input/output interface circuit is electrically connected with the tested terminal.
The on-site uninterrupted full-automatic test method of the on-site feeder automation switch terminal in the embodiment of the invention is particularly suitable for testing the conditions of equipment installation and debugging, engineering reconstruction, engineering acceptance and the like, has simple, quick, safe and efficient test work, solves the problem that the on-site feeder automation equipment can only test three remote and overcurrent fault detection functions on site, automatically tests all functions and performance indexes of the terminal under the condition that the fault occurs in different sections at one time, and particularly solves the test problem of short-time incoming residual voltage blocking detection function and performance.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is an overall circuit connection diagram of a feeder switch condition adaptive simulator used in a field uninterruptible full-automatic testing method of an in-situ type feeder automatic switch terminal in the embodiment of the present invention;
FIG. 2 is a circuit diagram illustrating the simulator of FIG. 1 in which feeder switch interface adaptation is performed;
FIG. 3 is a circuit diagram of the simulator of FIG. 1 during a feeder condition simulation;
fig. 4 is a schematic diagram illustrating an apparatus configuration of the on-site feeder automation switch terminal in fig. 1 according to the method for testing the on-site feeder automation switch terminal without power outage;
fig. 5 is a non-power-outage test flow chart of an in-place type section switch terminal in the method for testing an in-place type feeder automation switch terminal in a non-power-outage full-automatic field according to the embodiment of the present invention;
fig. 6 is a non-power-outage test flow chart of the in-place type tie switch terminal in the method for testing the in-place type feeder automation switch terminal in the non-power-outage full-automatic field according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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.
Referring to fig. 1, the feeder switch condition adaptive simulator in the present invention includes a single chip, a programmable logic array, a feeder condition simulation circuit, an adaptive control interface circuit, a power supply circuit, a liquid crystal display unit, and an input/output interface circuit, which are controlled by the single chip and the programmable logic array as a center, wherein the power supply circuit converts an externally input power supply into a suitable voltage for the single chip, the programmable logic array, the liquid crystal display unit, the input/output interface circuit, the feeder condition simulation circuit, and the adaptive control interface circuit. The feeder switch working condition self-adaptive simulator receives a control command of an upper computer to complete the simulation of various states of feeder operation and fault working conditions and the self-adaptive simulation of the type of the distribution switch selected by a scheme, the self-adaptive interfaces of various control interface loop circuits, and the connection with a tested terminal to realize the uninterrupted power supply test. The single chip microcomputer is in data communication with the feeder automatic intelligent tester in an RS485 or WiFi mode, the feeder switch working condition self-adaptive simulator is connected between an external feeder switch PT power supply and a tested terminal, the self-adaptive control interface circuit is electrically connected with a control interface of the tested terminal, the switch control voltage type and the voltage grade are not needed to be considered, self-adaptive connection is achieved, and the input and output interface circuit is electrically connected with the tested terminal.
Referring to fig. 2, the input/output interface circuit includes an AC/DC and DC/DC level conversion circuit, and the conversion circuit automatically converts DC 24-220V/AC 220V/380V voltage input from a terminal to be tested into 0/5V voltage signal and inputs the voltage signal into the single chip microcomputer. The single chip microcomputer is provided with a plurality of delay units, and signals subjected to level conversion are input into the delay units and then output into the programmable logic array. The programmable logic array is provided with a switch type coding and decoding circuit and a switch operation control logic circuit, the switch type coding and decoding circuit is used for controlling the selection state of a type switch, the input end of the type switch is connected to the output end of the delay unit, and when the type switch is in different switching states, the delay unit is connected to different switch operation control logic circuits, namely the delay unit is adaptively switched to a required interface circuit.
The self-adaptive control interface circuit is essentially a relay, the relay is controlled by the programmable logic array, the input end of the relay is connected with the output end of the switch operation control logic circuit, and the output end of the relay is connected with the control circuit of the tested terminal. When the type change-over switch is switched and connected to a required switch operation control logic circuit, the relay also connects the switch operation control logic circuit with the tested terminal to realize the self-adaptive interface of the operation control loop.
The programmable logic array is pre-programmed with control logics of electromagnetic operating mechanisms, spring operating mechanisms, permanent magnet operating mechanisms and the like of various breaker type distribution switches and various load switch type distribution switches. The single chip microcomputer receives data such as a switch type control instruction and switch opening and closing delay sent by the feeder automation intelligent tester, the data is analyzed and then sent to the programmable logic array, and the programmable logic array receives information and then controls the switching state of the type switch through the switch type coding and decoding circuit.
The programmable logic array can be programmed on line, and the switch types which are not available can be expanded at any time to form a required switch operation control logic circuit.
Referring to fig. 3 and 4, the programmable logic array also has a fault type state control decoder therein for controlling the state of the fault type switch. When the singlechip receives the fault state characteristic data, the fault state characteristic data is analyzed and then sent to the programmable logic array, and the programmable logic array controls the fault type selector switch to be switched to a required state through the fault type state control decoder, so that the controllable transformer is controlled to output a corresponding fault voltage working condition.
The feeder working condition simulation circuit is also essentially a relay which is controlled by a programmable logic array, the contact of the relay is electrically connected with the secondary side of the fault state transformer, and the primary side of the fault state transformer is connected with a PT power supply. When the fault type switch is switched to a required state, the relay also connects the fault type switch to different positions of a secondary coil of the fault state transformer so that the fault state transformer is in different transformation ratios, and further controls the voltage output by the PT power supply to the tested terminal, thereby simulating various feeder line electric working conditions of normal and fault field feeder lines.
The feeder switch working condition self-adaptive simulator is connected with the tested switch PT and the tested terminal through special cables.
The feeder automation intelligent tester comprises a test management control upper computer and a signal source, wherein the upper computer can edit test schemes of various feeder automation modes on line and in situ, generate required various test working condition state sequences and control data, and send the test schemes to the signal source and the feeder switch working condition self-adaptive simulator. And the upper computer also receives the state data information returned by the tested terminal, performs test process control and state data information display, and generates a test report. The signal source outputs voltage, current and other electric operation and fault condition analog quantity data and state quantity information to the tested terminal according to a test scheme issued by the upper computer, monitors relevant telemetering remote control information, fault processing relay protection functions and the like of the tested terminal, and reports the information to the upper computer.
Referring to fig. 5 and 6, the embodiment of the invention provides a field uninterrupted full-automatic test method for an in-place feeder automation switch terminal, which comprises an uninterrupted test method for an in-place section switch terminal and an uninterrupted test method for an in-place tie switch terminal.
Before the two tests are carried out, a test scheme is required to be firstly compiled, the test scheme comprises a plurality of test functions, each function comprises a plurality of test states, and the test states are one electric working state of the tested switch terminal in the normal operation or fault and fault processing process and comprise analog quantity states of voltage, current waveform and the like of the tested switch terminal, switching-on and switching-off states of the switch and the like. After the test scheme is compiled, the test scheme can be stored on site or uploaded to a cloud platform.
The on-site section switch terminal uninterrupted power test method comprises the following steps:
and 100, selecting a section switch test scheme in the tested in-situ type feeder automatic switch type in a feeder automatic intelligent tester or a cloud platform.
Step 101, loading the selected test scheme.
Step 102, checking whether the relevant state parameter setting is consistent with the feeder automation fixed value of the current tested switch terminal: such as whether various test state parameters are consistent with the measured terminal setting value, whether the magnitude and duration of the current of the applied fault state are larger than the terminal overcurrent setting value and the fault duration setting value, whether various state conversion criteria (timing, delay time, voltage criterion, current criterion, input quantity criterion and combinational logic criterion) are corresponding to the input, and the like. If so, the next step is performed.
And 103, checking and verifying whether the power distribution switch selected by the test scheme is consistent with the field switch or not without checking a control loop circuit and a voltage grade.
104, connecting the feeder automation intelligent tester and the feeder switch working condition adaptive simulator to a tested switch terminal, disconnecting the PT power supply from the tested switch terminal, switching to the feeder switch working condition adaptive simulator, and then accessing the tested switch terminal; and disconnecting the connection of the control loop from the tested switch terminal to the field switch, connecting the control loop of the tested switch terminal to the feeder switch working condition self-adaptive simulator, disconnecting the current loop of the field switch and the CT loop of the tested switch terminal, connecting the current loop of the feeder automation intelligent tester to the tested switch terminal, and paying attention to whether the CT loop has open circuit protection.
105, three-remote simulation test of the normal operation condition of the feeder line of the power distribution network: the feeder automation intelligent tester determines the test time state of the current signal applied to the tested switch terminal, the field measurement precision of the electric quantities such as the test current and the uploading time of the analog quantity remote measurement system according to the three remote state sequences of the test scheme. The remote control function and the switch deflection time are tested through the feeder switch working condition self-adaptive simulator, performance indexes such as remote signaling deflection and remote signaling deflection uploading time are simulated, and meanwhile, the communication condition is also tested.
106, testing instantaneous faults of the feeder line of the power distribution network: the feeder switch working condition self-adaptive simulator is used for simulating each state of instantaneous faults of a feeder of a power distribution network, and the functions of detecting incoming call X delay closing time, Y time non-fault boundary after closing and non-locking processing of a section switch terminal of a non-boundary at the upstream of a fault section in a one-time reclosing process are tested.
Step 107, testing the upstream non-boundary section switch terminal of the fault section under the condition of permanent fault of the feeder line of the power distribution network: and simulating each state of a permanent fault of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the functions of delaying switch-on time of an incoming call X, detecting non-fault boundary of Y time after switch-on and processing non-locking of a non-boundary section switch terminal at the upstream of a fault section in the two reclosing processes.
108, testing the upstream boundary section switch terminal of the fault section under the condition of permanent fault of the feeder line of the power distribution network: and simulating the permanent fault condition of the feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the X-electricity delay closing time of the boundary section switch terminal at the upstream of the fault section in the two reclosing processes, the Y-time fault boundary detection function after closing and the locking processing function.
Step 109, testing a downstream boundary section switch terminal of a fault section under the condition of permanent fault of a feeder line of the power distribution network: simulating each state of a permanent fault of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing a short-time incoming residual voltage detection function and a switching-on-forbidding locking processing function of a downstream boundary section switch terminal of a fault section in the process of twice reclosing; and simultaneously, testing the power locking and closing functions of the downstream interconnection switch.
Step 110, testing a downstream non-boundary section switch terminal of a fault section under the condition of permanent fault of a feeder line of the power distribution network: simulating permanent faults of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator to obtain each state, and testing a non-fault boundary detection function and a non-locking processing function of a downstream non-boundary section switch terminal of a fault section in the process of twice reclosing; and simultaneously, testing the delayed closing time of the downstream interconnection switch incoming call X, the non-fault boundary detection function of the closing time Y and the non-locking processing function.
Step 111, testing the section switch terminal of the fault section irrelevant branch under the instantaneous fault of the feeder line of the power distribution network: the feeder switch working condition self-adaptive simulator is used for simulating the instantaneous fault condition of a feeder of a power distribution network, and the non-fault related path detection function and the non-locking processing function of the fault section unrelated branch circuit section switch terminal which does not experience current in the reclosing process are tested.
Step 112, testing the functions of the section switch terminal of the fault section irrelevant branch under the permanent fault of the feeder line of the power distribution network: and simulating each state of permanent faults of the feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing a non-fault-related path detection function and a non-locking processing function of a fault section independent branch section switch terminal in the two reclosing processes.
The on-site type tie switch terminal uninterrupted power supply test method comprises the following steps:
and 200, selecting a testing scheme of the interconnection switch in the tested in-situ type feeder automation switch type in the feeder automation intelligent tester or the cloud platform.
Step 201, checking whether the relevant state parameter setting is consistent with the feeder automation setting value of the current tested switch terminal: such as whether various test state parameters are consistent with the measured terminal setting value, whether the magnitude and duration of the current of the applied fault state are larger than the terminal overcurrent setting value and the fault duration setting value, whether various state conversion criteria (timing, delay time, voltage criterion, current criterion, input quantity criterion and combinational logic criterion) are corresponding to the input, and the like. If so, the next step is performed.
At step 202, a check is made to verify that the switch type in the test scheme is consistent with the field switch.
Step 203, connecting the feeder automation intelligent tester and the feeder switch working condition adaptive simulator to a tested switch terminal, disconnecting the PT power supply from the tested switch terminal, switching to the feeder switch working condition adaptive simulator, and then accessing the tested switch terminal; and disconnecting the connection of the control loop from the tested switch terminal to the field switch, connecting the control loop of the tested switch terminal to the feeder switch working condition self-adaptive simulator, disconnecting the current loop of the field switch and the CT loop of the tested switch terminal, connecting the current loop of the feeder automation intelligent tester to the tested switch terminal, and paying attention to whether the CT loop has open circuit protection.
Step 204, three-remote simulation test of the normal operation condition of the feeder line of the power distribution network: the feeder automation intelligent tester determines the test time state of the current signal applied to the tested switch terminal, the field measurement precision of the electric quantities such as the test current and the uploading time of the analog quantity remote measurement system according to the three remote state sequences of the test scheme. The remote control function and the switch deflection time are tested through the feeder switch working condition self-adaptive simulator, performance indexes such as remote signaling deflection and remote signaling deflection uploading time are simulated, and meanwhile, the communication condition is also tested.
Step 205, testing a downstream boundary tie switch terminal of a fault section under the permanent fault of a feeder line of the power distribution network: and simulating each state of the permanent fault condition of the feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the residual voltage detection function and the locking processing function of the contact switch terminal at the downstream boundary of the fault section in the short-term power supply at the fault boundary in the two reclosing processes and the voltage-loss locking delayed switching function at one side.
Step 206, testing a downstream non-boundary interconnection switch terminal of a fault section under the permanent fault of a feeder line of the power distribution network: and simulating the permanent fault condition of the feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the voltage loss delay switching-on function of one side of the downstream non-boundary contact switch terminal of the fault section in the reclosing process.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (3)
1. The on-site uninterrupted full-automatic test method for the in-situ feeder automatic switch terminal is characterized by comprising an uninterrupted test method for the in-situ section switch terminal and an uninterrupted test method for the in-situ interconnection switch terminal;
the on-site section switch terminal uninterrupted power test method comprises the following steps:
selecting a sectional switch test scheme in a tested in-situ type feeder automatic switch type in a feeder automatic intelligent tester or a cloud platform;
loading the selected test scheme;
after confirming that the selected power distribution switch in the test scheme is consistent with the field switch and the state parameter setting in the test scheme is consistent with the feeder automation constant value of the current tested switch terminal, connecting a feeder automation intelligent tester and a feeder switch working condition self-adaptive simulator to the tested switch terminal, disconnecting the PT power supply from the tested switch terminal, switching to the feeder switch working condition self-adaptive simulator, and then accessing the tested switch terminal; disconnecting a control loop connecting line from a tested switch terminal to a field switch, connecting the control loop of the tested switch terminal to a feeder switch working condition self-adaptive simulator, disconnecting a current loop of the field switch and a CT loop of the tested switch terminal, and connecting the current loop of the feeder automation intelligent tester to the tested switch terminal;
the feeder automation intelligent tester automatically completes the following tests according to the test scheme:
three-remote simulation test of the normal operation condition of the feeder line of the power distribution network;
testing instantaneous faults of a feeder line of the power distribution network;
testing a non-boundary section switch terminal at the upstream of a fault section under the condition of permanent fault of a feeder line of a power distribution network;
testing a boundary section switch terminal at the upstream of a fault section under the condition of permanent fault of a feeder line of a power distribution network;
testing a downstream boundary section switch terminal of a fault section under the condition of permanent fault of a feeder line of a power distribution network;
testing a non-boundary section switch terminal at the downstream of a fault section under the condition of permanent fault of a feeder line of the power distribution network;
testing a section switch terminal of a fault section irrelevant branch under instantaneous fault of a feeder line of the power distribution network;
testing the functions of the section switch terminal of the independent branch in the fault section under the condition of permanent fault of the feeder line of the power distribution network;
the on-site type tie switch terminal uninterrupted power supply test method comprises the following steps:
selecting a testing scheme of an interconnection switch in a tested in-situ type feeder automation switch type in a feeder automation intelligent tester or a cloud platform;
after confirming that the selected power distribution switch in the test scheme is consistent with the field switch and the state parameter setting in the test scheme is consistent with the feeder automation constant value of the current tested switch terminal, connecting a feeder automation intelligent tester and a feeder switch working condition self-adaptive simulator to the tested switch terminal, disconnecting the PT power supply from the tested switch terminal, switching to the feeder switch working condition self-adaptive simulator, and then accessing the tested switch terminal; disconnecting a control loop connecting line from a tested switch terminal to a field switch, connecting the control loop of the tested switch terminal to a feeder switch working condition self-adaptive simulator, disconnecting a current loop of the field switch and a CT loop of the tested switch terminal, and connecting the current loop of the feeder automation intelligent tester to the tested switch terminal;
the feeder automation intelligent tester automatically completes the following tests according to the test scheme:
three-remote simulation test of the normal operation condition of the feeder line of the power distribution network;
testing a downstream boundary tie switch terminal of a fault section under a permanent fault of a feeder line of the power distribution network;
testing a non-boundary interconnection switch terminal at the downstream of a fault section under the permanent fault of a feeder line of the power distribution network;
the feeder switch working condition self-adaptive simulator comprises a single chip microcomputer, a programmable logic array, a liquid crystal display unit, an input/output interface circuit, a feeder working condition simulation circuit and a self-adaptive control interface circuit;
the single chip microcomputer is electrically connected with the liquid crystal display unit, the input/output interface circuit and the programmable logic array, the feeder working condition simulation circuit and the self-adaptive control interface circuit are electrically connected with the programmable logic array respectively, the feeder working condition simulation circuit is electrically connected with an external PT power supply and a tested terminal respectively, the self-adaptive control interface circuit is electrically connected with the tested terminal, and the input/output interface circuit is electrically connected with the tested terminal.
2. The on-site feeder automation switch terminal field uninterrupted full-automatic test method of claim 1, wherein in the on-site section switch terminal uninterrupted test method, three-remote simulation test of the normal operation condition of the feeder of the distribution network is specifically performed as follows: the feeder automation intelligent tester determines the test time state of a current signal applied to a tested switch terminal, the field measurement precision of the test current and the uploading time of an analog quantity remote measurement system according to a three-remote state sequence of a test scheme, tests the remote control function and the switch deflection time through a feeder switch working condition self-adaptive simulator, simulates the remote signaling deflection and the uploading time performance index of the remote signaling deflection, and simultaneously tests the communication condition;
the instantaneous fault test of the feeder line of the power distribution network specifically comprises the following steps: simulating each state of instantaneous fault of a feeder line of a power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing incoming call X delay switching-on time, Y time non-fault boundary detection function after switching-on and non-locking processing function of a non-boundary section switch terminal at the upstream of a fault section in a primary reclosing process;
the method comprises the following steps of testing a non-boundary section switch terminal at the upstream of a fault section under the condition of permanent fault of a feeder line of a power distribution network, specifically: simulating each state of a permanent fault of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the functions of delaying switch-on time of an incoming call X, detecting non-fault boundary of Y time after switch-on and processing non-locking of a non-boundary section switch terminal at the upstream of a fault section in the two reclosing processes;
the method for testing the upstream boundary section switch terminal of the fault section under the condition of permanent fault of the feeder line of the power distribution network specifically comprises the following steps: simulating a permanent fault condition of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the X-electricity delay closing time of an upstream boundary section switch terminal of a fault section in the process of twice reclosing, the Y-time fault boundary detection function after closing and the locking processing function;
the method for testing the downstream boundary section switch terminal of the fault section under the condition of permanent fault of the feeder line of the power distribution network specifically comprises the following steps: simulating each state of a permanent fault of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing a short-time incoming residual voltage detection function and a switching-on-forbidding locking processing function of a downstream boundary section switch terminal of a fault section in the process of twice reclosing; simultaneously, testing the incoming call locking and closing functions of the downstream interconnection switch;
the method comprises the following steps of testing a downstream non-boundary section switch terminal of a fault section under the condition of permanent fault of a feeder line of a power distribution network, specifically: simulating each state of a permanent fault of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing a non-fault boundary detection function and a non-locking processing function of a downstream non-boundary section switch terminal of a fault section in the process of twice reclosure; simultaneously testing the delayed closing time of the downstream interconnection switch incoming call X, the non-fault boundary detection function of the Y time after closing and the non-locking processing function;
the test of the section switch terminal of the fault section irrelevant branch under the instantaneous fault of the feeder line of the power distribution network specifically comprises the following steps: the feeder switch working condition self-adaptive simulator is used for simulating the instantaneous fault condition of a feeder of a power distribution network, and the non-fault related path detection function and the non-locking processing function of the fault section unrelated branch section switch terminal which does not experience current in the reclosing process are tested;
the function test of the section switch terminal of the fault section irrelevant branch under the condition of permanent fault of the feeder line of the power distribution network specifically comprises the following steps: and simulating each state of permanent faults of the feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing a non-fault-related path detection function and a non-locking processing function of a fault section independent branch section switch terminal in the two reclosing processes.
3. The on-site feeder automation switch terminal non-stop full-automatic test method of claim 1, wherein the non-stop test method of the on-site feeder automation switch terminal is a three-remote simulation test of the normal operation condition of a feeder of a distribution network, and specifically comprises the following steps: the feeder automation intelligent tester determines the test time state of a current signal applied to a tested switch terminal, the field measurement precision of the test current and the uploading time of an analog quantity remote measurement system according to a three-remote state sequence of a test scheme, tests the remote control function and the switch deflection time through a feeder switch working condition self-adaptive simulator, simulates the remote signaling deflection and the uploading time performance index of the remote signaling deflection, and simultaneously tests the communication condition;
the method for testing the downstream boundary interconnection switch terminal of the fault section under the permanent fault of the feeder line of the power distribution network specifically comprises the following steps: simulating each state of a permanent fault condition of a feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing a residual voltage detection function and a locking processing function of a fault boundary short-term incoming call and a one-side no-voltage locking delayed switching function of a downstream boundary contact switch terminal of a fault section in two reclosing processes;
the method for testing the downstream non-boundary interconnection switch terminal of the fault section under the permanent fault of the feeder line of the power distribution network specifically comprises the following steps: and simulating the permanent fault condition of the feeder line of the power distribution network by using a feeder line switch working condition self-adaptive simulator, and testing the voltage loss delay switching-on function of one side of the downstream non-boundary contact switch terminal of the fault section in the reclosing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911045.2A CN108983006B (en) | 2018-08-10 | 2018-08-10 | On-site type feeder automation switch terminal field uninterrupted full-automatic test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911045.2A CN108983006B (en) | 2018-08-10 | 2018-08-10 | On-site type feeder automation switch terminal field uninterrupted full-automatic test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108983006A CN108983006A (en) | 2018-12-11 |
| CN108983006B true CN108983006B (en) | 2020-10-16 |
Family
ID=64552739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810911045.2A Active CN108983006B (en) | 2018-08-10 | 2018-08-10 | On-site type feeder automation switch terminal field uninterrupted full-automatic test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108983006B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444671B (en) * | 2018-12-21 | 2021-08-24 | 云南电网有限责任公司电力科学研究院 | On-site feeder automation remote test system |
| CN109490681A (en) * | 2019-01-04 | 2019-03-19 | 云南电网有限责任公司电力科学研究院 | The on-the-spot test method and device of the feeder line of type on the spot based on terminal injection method |
| CN110086252B (en) * | 2019-04-03 | 2024-03-12 | 国网江西省电力有限公司电力科学研究院 | Polymorphic feeder automation field test device |
| CN111025135B (en) * | 2019-11-11 | 2020-12-01 | 武汉理工大学 | Cloud platform-based test method for on-site FTU coordination control capability |
| CN110988524B (en) * | 2019-11-18 | 2021-11-12 | 国网河北省电力有限公司电力科学研究院 | Automatic function test device of full-automatic recloser formula feeder |
| CN110954766B (en) * | 2019-11-29 | 2022-04-19 | 广西电网有限责任公司电力科学研究院 | Voltage and current type feeder automatic testing method |
| CN110868262B (en) * | 2019-11-29 | 2021-11-23 | 南通同洲电子有限责任公司 | WIFI test system capable of improving test efficiency and reducing loss |
| CN112540263A (en) * | 2020-11-18 | 2021-03-23 | 广西电网有限责任公司电力科学研究院 | Feeder automation logic operation and maintenance detection device and method |
| CN112924862B (en) * | 2021-01-28 | 2024-05-03 | 贵州电网有限责任公司 | System and method for detecting primary side fault injection (FA) |
| CN115864326A (en) * | 2022-11-18 | 2023-03-28 | 华北电力科学研究院有限责任公司 | Testing method, device and system based on local feeder |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010009588A1 (en) * | 2008-07-21 | 2010-01-28 | Abb Research Ltd | Feeder automation system and method for operating the same |
| WO2010080490A1 (en) * | 2008-12-18 | 2010-07-15 | Abb Research Ltd. | Feeder automation for an electric power distribution system |
| CN102306953A (en) * | 2011-06-23 | 2012-01-04 | 陕西电力科学研究院 | Test method for secondary injection of power distribution automatization system |
| CN104133463A (en) * | 2013-11-28 | 2014-11-05 | 国家电网公司 | Terminal injection-type feeder automation uninterrupted power test method |
| CN104133125A (en) * | 2013-11-28 | 2014-11-05 | 国家电网公司 | Onsite uninterrupted power automatic test method for feeder automation (FA) |
| CN105070157A (en) * | 2015-07-16 | 2015-11-18 | 国网技术学院 | Feeder automation simulation training system |
| 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 |
-
2018
- 2018-08-10 CN CN201810911045.2A patent/CN108983006B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010009588A1 (en) * | 2008-07-21 | 2010-01-28 | Abb Research Ltd | Feeder automation system and method for operating the same |
| WO2010080490A1 (en) * | 2008-12-18 | 2010-07-15 | Abb Research Ltd. | Feeder automation for an electric power distribution system |
| CN102306953A (en) * | 2011-06-23 | 2012-01-04 | 陕西电力科学研究院 | Test method for secondary injection of power distribution automatization system |
| CN104133463A (en) * | 2013-11-28 | 2014-11-05 | 国家电网公司 | Terminal injection-type feeder automation uninterrupted power test method |
| CN104133125A (en) * | 2013-11-28 | 2014-11-05 | 国家电网公司 | Onsite uninterrupted power automatic test method for feeder automation (FA) |
| CN105070157A (en) * | 2015-07-16 | 2015-11-18 | 国网技术学院 | Feeder automation simulation training system |
| 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 |
Non-Patent Citations (3)
| Title |
|---|
| 10kV架空线就地型馈线自动化开关的应用;张延泰;《电气技术》;20130415;全文 * |
| 基于逻辑配电终端的馈线自动化系统测试平台;罗伟等;《电力安全技术》;20180515;全文 * |
| 配网自动化馈线组(DA)测试方法研究;杭剑文;《自动化应用》;20180525;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108983006A (en) | 2018-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108983006B (en) | On-site type feeder automation switch terminal field uninterrupted full-automatic test method | |
| CN108879964B (en) | On-site feeder automation system on-site verification transmission FA full-automatic test method | |
| CN111694288B (en) | On-site feeder automation function closed-loop automatic test platform | |
| CN205139272U (en) | Join in marriage power -grid switch analog switch unit for equipment | |
| CN105527521B (en) | A kind of protective relaying device verification ancillary equipment and monitoring system | |
| CN109697912B (en) | Power distribution network operation and maintenance training system | |
| CN105094120B (en) | Simulate the test device of primary equipment action behavior | |
| CN111337790A (en) | Distribution network real mirror test platform and detection method for primary and secondary fusion power distribution equipment | |
| CN110514930A (en) | A kind of the detection test method and device of intelligent distributed distribution terminal | |
| CN111239652A (en) | Polarity testing device for current transformer | |
| CN103809052A (en) | Dynamic simulation experiment system for supergrid power transmission line protection and charged function test method | |
| CN110954766B (en) | Voltage and current type feeder automatic testing method | |
| CN113394779A (en) | Virtual power distribution terminal model based on in-place FA logic | |
| CN205484589U (en) | Overload protection device checkback auxiliary and monitoring system | |
| CN201364372Y (en) | Wire connection device and polarity test system and transformation ratio test system comprising same | |
| Spalding et al. | Fault Location, Isolation and service restoration (FLISR) functionalities tests in a Smart Grids laboratory for evaluation of the quality of service | |
| CN208636396U (en) | Feeder switch operating condition adaptive modeling device | |
| CN204719205U (en) | Isolating switch time-parameters test simulator | |
| CN113013877B (en) | Method for providing loop closing and transferring between 35kV lines under phase difference condition | |
| CN204440161U (en) | A kind of distributing automation apparatus technical feature test platform | |
| CN104597899A (en) | Technical performance test platform of distribution automation device | |
| Rosa et al. | A Laboratory infrastructure to support utilities in attaining power quality and Smart Grid goals | |
| CN114937975A (en) | Control circuit of protection device | |
| CN114441896A (en) | Distribution network automation simulation platform and FTU detection method | |
| CN207010245U (en) | A kind of reactive-load compensation automatic tracking control apparatus |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |