CN112379197A - Automatic debugging and detecting system and method for power distribution terminal - Google Patents
Automatic debugging and detecting system and method for power distribution terminal Download PDFInfo
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Abstract
The invention provides a power distribution terminal automatic debugging detection system and a method, wherein the system comprises a communication interface module, a standard source tester and a master control module; the communication interface module and the standard source tester are controlled by the master control module; the communication interface module is used for being connected with a communication unit of the power distribution terminal to be tested in series; and the standard source tester is used for outputting specified voltage and current to the measurement and control unit of the power distribution terminal to be tested according to the instruction of the master control module. Compared with the prior art, the invention provides a simple and reliable technical scheme, which can comprehensively and controllably test the power distribution terminal, greatly improves the reliability of the test of the power distribution terminal and better ensures the stable operation of a power grid.
Description
Technical Field
The invention relates to the technical field of distribution automation terminals, in particular to an automatic debugging and detecting system and method for a distribution terminal.
Background
Because the number of the power distribution network terminals is large, the detection of the domestic power distribution terminals is mainly carried out by a relay protection tester or a power source at present, the current and voltage are injected into the power distribution terminals through the tester, and whether the control logic of the power distribution terminals meets the requirements or not is tested according to the logic specification, so that the defects exist; meanwhile, the test content has large limitation, and the correctness and reliability of the fault processing logic of the terminal in the actual operation environment cannot be comprehensively detected; more importantly, the existing test mostly takes manual operation as a main part, the test workload is large, the time is long, the efficiency is low, and errors are easy to occur.
The publication time is 2016.07.20, and the publication number is CN 105785199A: a multifunctional power distribution terminal comprehensive test system and a working method thereof try to jointly control peripheral test instruments such as a standard source and a relay protection tester to test functions such as three remote control, SOE and fault identification of a power distribution terminal, but the scheme is too complex and has certain limitation.
Disclosure of Invention
Aiming at the limitation of the prior art, the invention provides a power distribution terminal automatic debugging detection system and a method, and the technical scheme adopted by the invention is as follows:
an automatic debugging and detecting system for a power distribution terminal comprises a communication interface module, a standard source tester and a master control module; the communication interface module and the standard source tester are controlled by the master control module; the communication interface module is used for being connected with a communication unit of the power distribution terminal to be tested in series; and the standard source tester is used for outputting specified voltage and current to the measurement and control unit of the power distribution terminal to be tested according to the instruction of the master control module.
Compared with the prior art, the invention provides a simple and reliable technical scheme, which can comprehensively and controllably test the power distribution terminal, greatly improves the reliability of the test of the power distribution terminal and better ensures the stable operation of a power grid. The operation and maintenance department of the automatic terminal of the power supply station can automatically test through the system, automatically issue a test conclusion and reduce human participation, thereby reducing errors caused by human factors and greatly saving test time and labor cost.
As a preferred scheme, the working mode of the communication interface module includes a monitoring mode; in the monitoring mode, the communication interface module acquires uplink data and downlink data between the communication unit of the power distribution terminal to be tested and the communication module of the master station, and the uplink data and the downlink data are supplied to the master control module for judgment.
As a preferred scheme, the working mode of the communication interface module includes an analog master station mode; under the mode of simulating the master station, the communication interface module disconnects the communication unit of the power distribution terminal to be tested from the communication module of the master station, sends downlink data generated by the master control module in a simulation mode to the communication unit of the power distribution terminal to be tested, and obtains uplink data of the communication unit of the power distribution terminal to be tested for judgment by the master control module.
Furthermore, the master control module decomposes the detection items of the power distribution terminal to be detected into action time sequence sequences, and controls the communication interface module and the standard source tester according to the action time sequence sequences.
As a preferable scheme, the master control module is provided with a time synchronization interface for performing B code time synchronization with an astronomical clock of the master station through the communication interface module.
For some performance indexes related to detection of the power distribution terminal, such as response delay, timeliness and the like, time consistency between a detection site and a main station needs to be guaranteed, and through the setting, the system can further realize detection of the indexes.
A power distribution terminal automatic debugging detection method based on the power distribution terminal automatic debugging detection system comprises the following steps:
decomposing the inspection items of the power distribution terminal to be inspected into action time sequences;
controlling the communication interface module and the standard source tester to act on the power distribution terminal to be tested according to the action time sequence;
acquiring uplink data and downlink data corresponding to a power distribution terminal to be tested;
and generating a detection result according to the uplink data and the downlink data.
Compared with the prior art, the automatic debugging and detecting method for the power distribution terminal is particularly suitable for grid-connected access test of the automatic power distribution network terminal, can realize unified detection of terminal functions, and eliminates the influence of unqualified products on a power grid. The efficiency of the test is improved, the tedium when having solved the tradition and utilizing the relay protection tester to test, need artificial participation too much, great less artificial work load, improvement work efficiency. The power supply reliability can be improved, the working efficiency is improved, the labor cost is reduced, meanwhile, the fault defect is eliminated in time, the power supply reliability is guaranteed, and the power supply system has the whole network popularization value.
As a preferred scheme, for a detection item related to communication debugging between a power distribution terminal to be detected and a master station, in the step of acquiring uplink data and downlink data corresponding to the power distribution terminal to be detected, the method comprises the following steps:
and acquiring uplink data and downlink data between the communication unit of the power distribution terminal to be tested and the communication module of the master station through a monitoring mode.
As a preferred scheme, for a detection item which does not involve communication debugging between a power distribution terminal to be detected and a master station, in the step of acquiring uplink data and downlink data corresponding to the power distribution terminal to be detected, the method comprises the following steps:
and acquiring uplink data corresponding to the power distribution terminal to be tested and downlink data generated by the master control module in a simulation mode through the master station simulation mode.
As a preferable scheme, the step of generating the detection result according to the uplink data and the downlink data includes the following steps:
and marking the sequence of the uplink data and the downlink data by attaching time marks to the uplink data and the downlink data.
As a preferable scheme, the automatic debugging and detecting method for the power distribution terminal further includes the following steps:
and B code timing is carried out through the communication interface module and an astronomical clock of the main station, so that the time consistency of a detection site and the main station is ensured.
Drawings
Fig. 1 is a schematic diagram of an automatic debugging and detecting system of a power distribution terminal according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating operation of the automatic debugging and detecting system of the power distribution terminal in a monitoring mode according to an embodiment of the present invention;
fig. 3 is a schematic diagram illustrating an operation of the automatic power distribution terminal debugging and detecting system in a master station simulation mode according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating steps of a method for automatically debugging and detecting a power distribution terminal according to embodiment 1 of the present invention;
fig. 5 is a flowchart illustrating steps of a method for automatically debugging and detecting a power distribution terminal according to embodiment 2 of the present invention;
fig. 6 is a flowchart illustrating steps of a method for automatically debugging and detecting a power distribution terminal according to embodiment 3 of the present invention;
fig. 7 is a flowchart illustrating steps of a method for automatically debugging and detecting a power distribution terminal according to embodiment 4 of the present invention;
fig. 8 is a flowchart illustrating steps of an automatic debugging and detecting method for a power distribution terminal according to embodiment 5 of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the embodiments described are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the present application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not necessarily used to describe a particular order or sequence, nor are they to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The invention is further illustrated below with reference to the figures and examples.
The prior art lacks a simple and reliable scheme for technicians to better control, debug and test the quality, namely, the quality of the functions of the power distribution terminal cannot be detected, so that the unqualified power distribution terminal is easily used in an actual circuit, the problems of unstable operation of the terminal, such as communication interruption, signal frequency transmission, failure of trip signals, error transmission, failure in remote measurement and the like, are increased day by day, and the accuracy and the practicability of service functions such as intelligent alarm, intelligent healing, power failure customer analysis and the like based on data acquired by the power distribution terminal are directly influenced.
Therefore, in order to solve the limitation of the prior art, the present embodiment provides a technical solution, and the technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.
Referring to fig. 1, an automatic debugging and detecting system for a power distribution terminal includes a communication interface module 1, a standard source tester 2, and a master control module 3; the communication interface module 1 and the standard source tester 2 are controlled by the master control module 3; the communication interface module 1 is used for being connected with a communication unit of a power distribution terminal to be tested in series; and the standard source tester 2 is used for outputting specified voltage and current to a measurement and control unit of the power distribution terminal to be tested according to the instruction of the master control module 3.
Compared with the prior art, the invention provides a simple and reliable technical scheme, which can comprehensively and controllably test the power distribution terminal, greatly improves the reliability of the test of the power distribution terminal and better ensures the stable operation of a power grid. The operation and maintenance department of the automatic terminal of the power supply station can automatically test through the system, automatically issue a test conclusion and reduce human participation, thereby reducing errors caused by human factors. Greatly saves the testing time and the labor cost.
Specifically, the standard source tester 2 may control the standard source output according to the requirement of the test item, and the standard source tester 2 of this embodiment employs a high-precision standard source and a high-precision standard table, so as to reduce the erroneous influence of the conventional relay protection tester on the conclusion due to the precision loss.
As a preferred embodiment, please refer to fig. 2, the operation mode of the communication interface module 1 includes a listening mode; in the monitoring mode, the communication interface module 1 obtains uplink data and downlink data between the communication unit of the power distribution terminal to be tested and the communication module of the master station, and the uplink data and the downlink data are provided for the master control module 3 to judge.
Referring to fig. 3 as a preferred embodiment, the working modes of the communication interface module 1 include an analog master station mode; under the mode of simulating the master station, the communication interface module 1 disconnects the communication unit of the power distribution terminal to be tested from the communication module of the master station, sends downlink data generated by simulation of the master control module 3 to the communication unit of the power distribution terminal to be tested, and obtains uplink data of the communication unit of the power distribution terminal to be tested for judgment by the master control module 3.
Specifically, the communication interface module 1 enters the monitoring mode or the simulation master station mode according to the instruction of the master control module 3. The monitoring mode is suitable for detection items related to communication debugging between the power distribution terminal to be detected and the master station, such as test items for detecting remote signaling of the master station, accuracy and timeliness of remote measurement data transmitted by the power distribution terminal; the simulation master station mode is suitable for detection items which do not relate to communication debugging of the power distribution terminal to be tested and the master station, if the test items such as master station remote control or master station remote modification fixed value are carried out, if the test items are actually carried out, master station personnel are required to participate in cooperation to issue an operation command, and the simulation master station mode is adopted, so that the master station personnel are not required to participate.
Further, the master control module 3 decomposes the detection items of the power distribution terminal to be detected into action time sequence sequences, and controls the communication interface module 1 and the standard source tester 2 according to the action time sequence sequences.
As a preferred embodiment, the general control module 3 is provided with a time synchronization interface for performing B code time synchronization with the astronomical clock of the master station through the communication interface module 1.
For some performance indexes related to detection of the power distribution terminal, such as response delay, timeliness and the like, time consistency between a detection site and a main station needs to be guaranteed, and through the setting, the system can further realize detection of the indexes.
A power distribution terminal automatic debugging detection method based on the power distribution terminal automatic debugging detection system, please refer to fig. 4, including the following steps:
s01, decomposing the inspection items of the power distribution terminal to be inspected into action time sequences;
s02, controlling the communication interface module and the standard source tester to act on the power distribution terminal to be tested according to the action time sequence;
s04, acquiring uplink data and downlink data corresponding to the power distribution terminal to be tested;
and S05, generating a detection result according to the uplink data and the downlink data.
Compared with the prior art, the automatic debugging and detecting method for the power distribution terminal is particularly suitable for grid-connected access test of the automatic power distribution network terminal, can realize unified detection of terminal functions, and eliminates the influence of unqualified products on a power grid. The efficiency of the test is improved, the tedium when having solved the tradition and utilizing the relay protection tester to test, need artificial participation too much, great less artificial work load, improvement work efficiency. The power supply reliability can be improved, the working efficiency is improved, the labor cost is reduced, meanwhile, the fault defect is eliminated in time, the power supply reliability is guaranteed, and the power supply system has the whole network popularization value.
Specifically, in step S05, the test data received in each test item is calculated, processed, and compared with the index, so as to obtain a detection result of whether the power distribution terminal to be tested meets the index requirement. This step is performed in particular by said general control module 3. For example: when the correctness of the protection action is detected, whether a protection tripping signal is correctly generated or not is monitored and detected, and meanwhile, the time difference from the addition of the protection current to the generation of the protection signal is calculated, and whether the timeliness of the protection signal is sent up to meet the index or not is judged.
As a preferred embodiment, for a detection item related to communication debugging between a power distribution terminal to be detected and a master station, in the step of acquiring uplink data and downlink data corresponding to the power distribution terminal to be detected, the method includes the following steps:
and S041, acquiring uplink data and downlink data between the communication unit of the power distribution terminal to be detected and the communication module of the master station through a monitoring mode.
As a preferred embodiment, for a detection item that does not involve communication debugging between a power distribution terminal to be detected and a master station, in the step of obtaining uplink data and downlink data corresponding to the power distribution terminal to be detected, the method includes the following steps:
and S042, acquiring uplink data corresponding to the power distribution terminal to be tested and downlink data generated by the master control module in a simulation mode through the master station simulation mode.
Specifically, the action sequence refers to an actual operation step of decomposing the detection operation according to a preset configuration to obtain a sequence, the master control module 3 issues a corresponding instruction according to the preset configuration, and the instruction sequence is consistent with the preset configuration sequence. For example, for a detection item for detecting the correctness of the protection action, the protection item is decomposed into a first step of issuing a protection fixed value to a power distribution terminal to be detected in a simulation master station mode; secondly, controlling a standard source to add current larger than a protection constant value to the power distribution terminal to be tested; monitoring a protection tripping signal sent to a main station by a power distribution terminal in a monitoring mode; fourthly, the correctness of the received monitoring signal is compared with the expected result, and a detection result is given. The automatic debugging detection system for the power distribution terminal of the embodiment correspondingly executes the steps in the automatic debugging detection method for the power distribution terminal according to the action sequence obtained by decomposition.
As a preferred embodiment, the step S05 of generating the detection result according to the uplink data and the downlink data includes the following steps:
and S051, marking the sequence of the uplink data and the downlink data by attaching time marks to the uplink data and the downlink data.
Specifically, for example, detecting the index of the remote control response time, the time for the master station to issue the remote control command needs to be indicated in the monitored downlink data, and the time for the terminal switch to operate needs to be indicated in the monitored uplink data, so as to determine whether the remote control response time meets the requirement.
As a preferred embodiment, the method for automatically debugging and detecting the power distribution terminal further includes the following steps:
and S03, performing B code timing with the astronomical clock of the master station through the communication interface module, and ensuring the time consistency between the detection site and the master station.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An automatic debugging and detecting system for a power distribution terminal is characterized by comprising a communication interface module, a standard source tester and a master control module; the communication interface module and the standard source tester are controlled by the master control module; the communication interface module is used for being connected with a communication unit of the power distribution terminal to be tested in series; and the standard source tester is used for outputting specified voltage and current to the measurement and control unit of the power distribution terminal to be tested according to the instruction of the master control module.
2. The automatic debugging detection system for power distribution terminals according to claim 1, wherein the operation mode of said communication interface module comprises a listening mode; in the monitoring mode, the communication interface module acquires uplink data and downlink data between the communication unit of the power distribution terminal to be tested and the communication module of the master station, and the uplink data and the downlink data are supplied to the master control module for judgment.
3. The automatic debugging detection system for power distribution terminals according to claim 1, wherein the operation mode of the communication interface module comprises an analog master station mode; under the mode of simulating the master station, the communication interface module disconnects the communication unit of the power distribution terminal to be tested from the communication module of the master station, sends downlink data generated by the master control module in a simulation mode to the communication unit of the power distribution terminal to be tested, and obtains uplink data of the communication unit of the power distribution terminal to be tested for judgment by the master control module.
4. The automatic debugging and detecting system for the power distribution terminal according to claim 1, wherein the master control module decomposes the detection items of the power distribution terminal to be detected into action time sequence sequences, and controls the communication interface module and the standard source tester according to the action time sequence sequences.
5. The automatic debugging and detecting system of the power distribution terminal according to claim 1, wherein the master control module is provided with a time synchronization interface for performing a B-code time synchronization with an astronomical clock of the master station through the communication interface module.
6. An automatic debugging and detecting method for a power distribution terminal based on the automatic debugging and detecting system for the power distribution terminal of any one of claims 1 to 5, characterized by comprising the following steps:
decomposing the inspection items of the power distribution terminal to be inspected into action time sequences;
controlling the communication interface module and the standard source tester to act on the power distribution terminal to be tested according to the action time sequence;
acquiring uplink data and downlink data corresponding to a power distribution terminal to be tested;
and generating a detection result according to the uplink data and the downlink data.
7. The automatic debugging detection method of the power distribution terminal according to claim 6, wherein for the detection items related to the communication debugging between the power distribution terminal to be tested and the master station, in the step of obtaining the uplink data and the downlink data corresponding to the power distribution terminal to be tested, the method comprises the following steps:
and acquiring uplink data and downlink data between the communication unit of the power distribution terminal to be tested and the communication module of the master station through a monitoring mode.
8. The automatic debugging detection method for the power distribution terminal according to claim 6, wherein for the detection items not related to the communication debugging between the power distribution terminal to be tested and the master station, in the step of obtaining the uplink data and the downlink data corresponding to the power distribution terminal to be tested, the method comprises the following steps:
and acquiring uplink data corresponding to the power distribution terminal to be tested and downlink data generated by the master control module in a simulation mode through the master station simulation mode.
9. The automatic debugging detection method for the power distribution terminal according to claim 6, wherein the step of generating the detection result according to the uplink data and the downlink data comprises the following steps:
and marking the sequence of the uplink data and the downlink data by attaching time marks to the uplink data and the downlink data.
10. The automatic debugging detection method for the power distribution terminal according to claim 6, further comprising the steps of:
and B code timing is carried out through the communication interface module and an astronomical clock of the main station, so that the time consistency of a detection site and the main station is ensured.
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