CN117791483A - Automatic setting method and system for capacity test time sequence - Google Patents
Automatic setting method and system for capacity test time sequence Download PDFInfo
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Abstract
The invention discloses a method and a system for automatically setting a capacity test time sequence, wherein the method comprises the following steps: calling a setting expert database based on the selected power supply type, the operation mode of the test article and the test item to obtain data of the operation equipment and the corresponding program controller channel; acquiring setting basic data based on the equipment management database and the test article management database; inquiring a sample management database based on the acquired channel data of the operation equipment and the corresponding program controller to obtain the switching-on and switching-off time of the sample during the test; invoking an algorithm of a setting expert database, and acquiring setting data of each device and test article operation command based on setting basic data; setting data of the equipment and sample operation commands and the switching-on and switching-off time of the samples are generated to form a complete setting data table; and finishing automatic setting of the capacity test time sequence based on the checked setting data table. The invention realizes that the setting work is automatically completed by the computer system, avoids the workload of manual calculation and input, and improves the test efficiency.
Description
Technical Field
The invention belongs to the technical field of high-voltage power networks, and relates to a method and a system for automatically setting a capacity test time sequence.
Background
In the capacity test process, along with the inherent opening and closing time of a test article (a detected product, typically a high-voltage switch such as a circuit breaker and a load switch), the operation mode of the test article (typically including single opening, single closing, closing and reclosing) and the change of a test program, parameters of test time sequence setting are required to be continuously adjusted, so that the test article and test equipment are ensured to act in coordination according to the time sequence requirement. The current time sequence setting software does not have the capability of automatically setting reference time, calculating command issuing time and setting command pulse width, namely only has a full-manual setting function. In order to reduce the workload of channel-by-channel input, when the test program is not changed, a setting module file can be manually imported to finish the initial setting of each device, but the time of opening and closing the test sample is different, the action characteristic of the main loop device is changed along with time and environment, so that the time of sending each command pulse still needs to be manually calculated, and the setting value is manually modified.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, time sequence modification and editing work is completed manually, test efficiency is low, errors are easy to occur in manual calculation or calculation data input, and provides a method and a system for automatically setting a capacity test time sequence.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a capacity test time sequence automatic setting method comprises the following steps:
step 1: selecting a corresponding power supply type, an operation mode of a test article and a test item according to actual working requirements;
step 2: calling a setting expert database based on the selected power supply type, the operation mode of the test article and the test item to obtain channel data of the operation equipment and the corresponding program controller;
step 3: acquiring setting basic data based on the equipment management database and the test article management database; inquiring a sample management database to obtain the on-off time of a sample to be controlled in a test based on the acquired operation equipment and corresponding program controller channel data;
step 4: invoking an algorithm of a setting expert database, and acquiring setting data of each device and test article operation command based on setting basic data;
step 5: setting data of equipment and test article operation commands and switching-on and switching-off time of test articles to be controlled in test are converted into corresponding channel setting data, a complete setting data table is generated, and information of each channel is displayed and verification is completed;
step 6: and finishing automatic setting of the capacity test time sequence based on the checked setting data table.
The invention further improves that:
further, the power source type includes a generator, a power grid or a composite power source; the test items are divided into a single-phase short-time tolerance current, a three-phase short-time tolerance current, a single-phase peak tolerance current, a three-phase peak tolerance current and a three-phase direct test of an alternating-current high-voltage circuit breaker; the operation mode of the test sample comprises single-split, combined-split and reclosing.
Further, setting basic data, specifically: reference time under current voltage and switching-on and switching-off time of switching equipment to be controlled in test.
Further, obtaining channel data of the operation device and the corresponding program controller, specifically: the number and class of operating devices and the number, class and number of corresponding program controller channels.
Further, the algorithm for setting the expert database includes: standard calculation formulas, data tables and experience parameters; the specific expression form of the standard calculation formula is related to the corresponding object; the data table is determined by combining historical data with simulation calculation; the experience parameter is obtained from actual working experience.
Further, the tuning data table includes each channel number, channel name, channel command pulse start time, command pulse duration.
Further, after generating the complete tuning data table, the method further includes: judging whether each data in the setting data table accords with a preset value, and if so, automatically setting the capacity test time sequence; if not, repeating the steps 3 to 5 until each data in the setting data table is consistent with the preset value.
Further, based on the checked setting data table, the automatic setting of the capacity test time sequence is completed, specifically: transmitting the setting data to setting software so as to finish the timing sequence setting; the tuning software is TeamSeq.
Further, the setting data is transmitted to the setting software, so that the timing sequence setting is completed, specifically: and establishing a dialogue through the setting software by using DDE process communication, and uploading data to the setting software for conversion by using a SetChannelData command.
A capacity test timing automatic setting system, comprising:
the selecting module is used for selecting corresponding power supply types, operation modes of the test products and test items according to actual working requirements;
the calling module is used for calling the setting expert database based on the selected power supply type, the operation mode of the test article and the test item to obtain channel data of the operation equipment and the corresponding program controller;
the query module is used for obtaining setting basic data based on the equipment management database and the test article management database; inquiring a sample management database to obtain the on-off time of a sample to be controlled in a test based on the acquired operation equipment and corresponding program controller channel data;
the first acquisition module is used for calling an algorithm of a setting expert database and acquiring setting data of each device and test article operation command based on setting basic data;
the generation module converts setting data of equipment and sample operation commands and on-off time of the samples to be controlled in the test into corresponding channel setting data, generates a complete setting data table, displays information of each channel and completes verification;
and the second acquisition module acquires the automatic setting of the capacity test time sequence based on the checked setting data table.
Compared with the prior art, the invention has the following beneficial effects:
based on the selected power supply type, the operation mode of the test sample and the test item, calling a setting expert database to obtain channel data of the operation equipment and the corresponding program controller; acquiring setting basic data based on the equipment management database and the test article management database; inquiring a sample management database to obtain the on-off time of a sample to be controlled in a test based on the acquired operation equipment and corresponding program controller channel data; invoking an algorithm of a setting expert database, and acquiring setting data of each device and test article operation command based on setting basic data; setting data of equipment and test article operation commands and switching-on and switching-off time of test articles to be controlled in test are converted into corresponding channel setting data, a complete setting data table is generated, and information of each channel is displayed and verification is completed; and finishing automatic setting of the capacity test time sequence based on the checked setting data table. According to the invention, the programming tool is adopted to obtain the parameters of the equipment and the test sample, a method of a manual calculator adopted before is replaced, and the manual input or selection of a reference value, the switching-on and switching-off time of the equipment and the switching-on and switching-off time of the test sample are not required, so that the input risk is reduced.
Furthermore, the invention adopts the setting expert database and the calculation program to automatically complete the calculation of each channel, replaces the method of calculating the template and the calculator, does not need to know the setting details, reduces the technical threshold of operators and the risk of misoperation, and saves the calculation time.
Furthermore, the invention adopts DDE communication to finish the setting of the software TeamSeq, manual input of personnel is not needed, the operation threshold and the misoperation risk of personnel are reduced, and the setting efficiency is improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of the automatic timing method for capacity test according to the present invention;
FIG. 2 is a schematic diagram of a system for automatically adjusting a capacity test time sequence according to the present invention;
FIG. 3 is a typical short circuit test oscillogram;
FIG. 4 is a main loop topology diagram common to capacity tests;
FIG. 5 is a schematic flow chart of another method for automatically adjusting the time sequence of the capacity test according to the present invention. Wherein G is a short-circuit generator; l is an adjusting reactance; TO is a test article; GB is a protection switch; MB is an operation switch; u is voltage measurement; MS is a closing switch J and is current measurement; t is a transformer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In describing embodiments of the present invention, it should be noted that the terms "first," "second," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, the invention discloses a method for automatically setting a capacity test time sequence, which comprises the following steps:
s101: and selecting a corresponding power supply type, an operation mode of the test article and test items according to actual working requirements.
The power source type comprises a generator, a power grid or a composite power source; the test items are divided into a single-phase short-time tolerance current, a three-phase short-time tolerance current, a single-phase peak tolerance current, a three-phase peak tolerance current and three-phase direct test T100s and T100a of an alternating-current high-voltage circuit breaker; the sample operation mode comprises single-opening, closing, opening and reclosing; the subdivision is represented as O; the split is denoted as CO; the reclosure is expressed as: o-0.3s-CO.
S102: and calling a setting expert database based on the selected power supply type, the operation mode of the test sample and the test item to obtain channel data of the operation equipment and the corresponding program controller.
The operation device and the corresponding program controller channel data specifically include: the number and class of operating devices and the number, class and number of corresponding program controller channels.
S103: acquiring setting basic data based on the equipment management database and the test article management database; based on the acquired operation equipment and corresponding program controller channel data, inquiring a sample management database to obtain the on-off time of the sample to be controlled in the test.
The setting basic data specifically comprises: reference time under current voltage and switching-on and switching-off time of switching equipment to be controlled in test.
S104: and (3) adjusting and calling an algorithm of a setting expert database, and acquiring setting data of each device and test article operation command based on the setting basic data.
The algorithm for tuning the expert database includes: standard calculation formulas, data tables and experience parameters; the specific expression form of the standard calculation formula is related to the corresponding object; taking a sample brake-separating command as an example, calculating by adopting a standard calculation formula, namely a reference time, sample brake-separating time and arcing time, wherein the arcing time is calculated by adopting a formula of GB/T19846.108.3; taking QT as an example, the QScript engine type evaluation method is used for realizing; the data table is determined by combining historical data with simulation calculation; the empirical parameters are obtained from practical working experience, such as auxiliary switch arcing time, pre-breakdown time of the closing switch at different voltages, and overcurrent protection setting time of the operating switch MB.
S105: and converting the setting data of the equipment and the sample operation command and the switching-on and switching-off time of the sample to be controlled in the test into corresponding channel setting data, generating a complete setting data table, displaying the information of each channel and finishing the verification.
The tuning data table includes each channel number, channel name, channel command pulse start time, command pulse duration.
S106: and finishing automatic setting of the capacity test time sequence based on the checked setting data table.
After generating the complete tuning data table, the method further comprises: judging whether each data in the setting data table accords with a preset value, and if so, automatically setting the capacity test time sequence; if not, repeating S103 to S105 until each data in the setting data table is matched with the preset value.
Based on the calibrated setting data table, the automatic setting of the capacity test time sequence is completed, specifically: transmitting the setting data to setting software so as to finish the timing sequence setting; the tuning software is TeamSeq. Transmitting the setting data to setting software so as to finish the timing sequence setting, specifically: and using DDE process communication, establishing a dialogue through main setting software, and uploading data into the setting software for conversion by using a SetChannelData command.
Referring to fig. 2, the invention discloses a capacity test time sequence automatic setting system, which comprises:
the selecting module is used for selecting corresponding power supply types, operation modes of the test products and test items according to actual working requirements;
the calling module is used for calling the setting expert database based on the selected power supply type, the operation mode of the test article and the test item to obtain channel data of the operation equipment and the corresponding program controller;
the query module is used for obtaining setting basic data based on the equipment management database and the test article management database; inquiring a sample management database to obtain the on-off time of a sample to be controlled in a test based on the acquired operation equipment and corresponding program controller channel data;
the first acquisition module is used for calling an algorithm of a setting expert database and acquiring setting data of each device and test article operation command based on setting basic data;
the generation module converts setting data of equipment and sample operation commands and on-off time of the samples to be controlled in the test into corresponding channel setting data, generates a complete setting data table, displays information of each channel and completes verification;
and the second acquisition module acquires the automatic setting of the capacity test time sequence based on the checked setting data table.
Examples:
first, related terms are explained; capacity test: and simulating tests of various short-circuit faults in the high-voltage switch switching power system. The test system consists of a large-capacity short-circuit power supply, a test main loop, a test product and related measurement and control equipment.
And (3) time sequence control: the test equipment and the test products are realized through a time sequence controller (commonly such as inlet equipment BE3200 and various auxiliary equipment) according to a set sequence, the designated actions are completed, and the control precision is generally required to BE within 0.1 ms. The device consists of a series of operation pulse commands, and different test devices or test products are respectively controlled, and particularly, reference can be made to two channels C (closing) and O (opening) below in FIG. 3, and pulse electric signals in the form of two short times are output so as to ensure that the devices act in a time-sharing manner according to a set time sequence.
The channel is as follows: the timing controller (typically BE3200, for example) issues the exit of an operation instruction, typically with 64 or more lanes. Each channel may continuously send command pulses to control a test device or article in the field.
Timing setting data: the set of channel setup parameters for a timing controller (e.g., BE 3200) includes the channel number, channel name, the channel command pulse start time, and command pulse duration.
Timing sequence setting: the issue time of the operation command and the width of the operation command pulse for each device with respect to the time reference (current zero) are set.
Time reference: and (5) a reference value of the sending time of operation instructions of all test main equipment, test products and the like. The rising edge of each channel command pulse is offset by a certain time (ms or μs) with reference to the value. Typically some zero point of the supply current (moment of zero current).
Arcing time: the time from when the test object (mainly referred to as a mechanical switch) is separated from the contact until the current stops flowing is usually in milliseconds, that is, the time of (t 5-t 6) in fig. 3.
In order to meet the standard requirement of examination of the test sample, each device must act according to a set time sequence during the capacity test. As shown in fig. 4, in the test, the closing switch MS is required TO close at a specified power supply voltage phase TO form a short circuit (corresponding TO time t2 in fig. 3), and the sample TO is required TO open at a time set before the current zero point (corresponding TO time t4 in fig. 3), and the closing switch MS is required TO cut off the power supply for a set time. The sample is formed by single-split (O), split (CO), reclosing (O-0.3 s-CO) or (CO-CO) in multiple operation modes, and the inherent switching-on and switching-off time of each mode is different under different control voltages (generally divided into three grades of low voltage, rated voltage and high voltage). In order to meet the standard requirements of test current and voltage parameters, the test sample arcing time check meets the short, medium and long requirements, and the issuing time of an opening and closing instruction is required to be continuously adjusted according to the conditions of the test sample and equipment.
Referring to fig. 5, the present invention calculates the sending time of each device operation command by means of the established device database and the setting expert database, and transmits the calculated value to the setting software, such as the imported software TeamSeq, through process communication, so as to realize the automatic setting of the software, and greatly reduce the workload of manual operation and the risk of errors, and the specific steps are as follows:
(1) The power type, sample number and mode of operation, test item, test current and test voltage are selected. The power source types include a generator, a grid, or a composite power source. Test items are classified into short-time withstand current (single-phase or three-phase distinction), peak withstand current (single-phase or three-phase distinction), T100a, T100s, and the like. The operation modes of the sample comprise single division (O), combined division (CO), reclosure (O-0.3 s-CO) or (CO-CO) and the like.
(2) And (3) calling a setting expert database according to the test items and the power supply types set in the step (1), inquiring and obtaining the number and the category of the operation equipment, and corresponding the number, the category and the number of the program controller channels. Taking a three-phase short-time tolerance current test item as an example, the equipment to be operated mainly comprises three switching-on switches MS (one for each phase of three phases) and an operation switch MB in FIG. 4, and then control channel information of each equipment stored in a database can be inquired and obtained, such as A, B, C switching-on of channels 2, 3 and 4 respectively operating the switching-on switches MS; the channel 6 operates the operation switch MB to open the gate, and the channel 7 operates the sample to open the gate. Wherein the channel number and the channel command duration are managed by a tuning expert database, which can be managed and modified according to practical situations. As previously illustrated, the storage information includes the switching a-phase closing of the closing switch MS being controlled by channel 2, the control command pulse width being 10MS. When channel 2 fails, the database data may be modified, for example, to change channel 12 to switch on switch MS to switch on phase a. By using database management, on one hand, templates are not required to be manually called, on the other hand, when no templates are available in special tests, only required equipment is required to be simply set, and a computer system can directly convert the templates into channel information without manually checking and modifying data of each channel one by one.
(3) Inquiring the equipment and the sample management database to obtain setting basic data, such as reference time under the current voltage in the step (1) and switching-on and switching-off time (such as switching-on time inherent to a switch A of a switching-on switch MS) of the switching equipment to be controlled in the test in the step (2). According to the sample number and the operation mode in the step (1), inquiring a sample management database to obtain the on-off time of the sample to be controlled in the test, such as the inherent on-off time of the sample with the control voltage of DC 143V.
(4) And calling an algorithm of a setting expert database, and calculating setting data of operation commands of each device and each test article. The expert database algorithm is classified into three types, a standard calculation formula, a data table and an experience parameter. The standard calculation formula takes a sample brake-separating command as an example, and can be calculated by adopting a formula, namely a reference time, a sample brake-separating time and an arcing time, and the arcing time is calculated by adopting a standard (such as GB/T19846.108.3) formula. The formula can be stored by adopting a character string, a script function of a programming tool is called to calculate a result, and taking QT as an example, the formula can be realized by using a evaluate (QString sformula) method of QScript Engine class. The data table stores the closing phase angle of the closing switch MS according to the parameters of the peak value of the short-circuit current, the loop time constant and the like, and the data table is determined by combining historical data with simulation calculation. When the time of sending the closing command of the closing switch MS needs to be calculated, the time t1 of the expected contact of the closing switch MS can be obtained through inquiring the table and the closing phase angle, so that the closing time is calculated by (t 1-MS). Experience parameters such as auxiliary switch arcing time, pre-breakdown time of the closing switch at different voltages, overcurrent protection setting time of the operating switch MB, etc.
(5) And (3) converting the operation setting time sequence of the equipment and the test sample into corresponding channel setting data, wherein the step (2) can be referred to specifically. After the conversion is completed, a complete setting data table is generated, including the serial numbers of all channels, the names of the channels, the starting time of command pulse of the channels, the duration time of command pulse and the like, and the information of all channels is displayed and verification is completed.
(6) After the operator confirms that the verification is successful, the operator clicks the verification, and the software automatically transmits the setting data to the setting software through process communication, so that the timing sequence setting is completed. Taking the imported software TeamSeq as an example, DDE process communication can be used, a dialogue is established by the topic "TeamSeq", and data can be uploaded to the setting software by using a SetChannelData command, so that manual entry and modification are replaced.
(7) The setting data is recorded into a setting record database, so that the real-time archiving of the setting data is realized, and the inquiry and the reproduction test process are convenient.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The automatic setting method of the capacity test time sequence is characterized by comprising the following steps of:
step 1: selecting a corresponding power supply type, an operation mode of a test article and a test item according to actual working requirements;
step 2: calling a setting expert database based on the selected power supply type, the operation mode of the test article and the test item to obtain channel data of the operation equipment and the corresponding program controller;
step 3: acquiring setting basic data based on the equipment management database and the test article management database; inquiring a sample management database to obtain the on-off time of a sample to be controlled in a test based on the acquired operation equipment and corresponding program controller channel data;
step 4: invoking an algorithm of a setting expert database, and acquiring setting data of each device and test article operation command based on setting basic data;
step 5: setting data of equipment and test article operation commands and switching-on and switching-off time of test articles to be controlled in test are converted into corresponding channel setting data, a complete setting data table is generated, and information of each channel is displayed and verification is completed;
step 6: and finishing automatic setting of the capacity test time sequence based on the checked setting data table.
2. The automatic capacity test time sequence setting method according to claim 1, wherein the power supply type comprises a generator, a power grid or a composite power supply; the test items are divided into a single-phase short-time tolerance current, a three-phase short-time tolerance current, a single-phase peak tolerance current, a three-phase peak tolerance current and a three-phase direct test of an alternating-current high-voltage circuit breaker; the operation mode of the test sample comprises single-split, combined-split and reclosing.
3. The automatic capacity test time sequence setting method according to claim 1, wherein the setting basic data specifically comprises: reference time under current voltage and switching-on and switching-off time of switching equipment to be controlled in test.
4. The automatic capacity test time sequence setting method according to claim 1, wherein the obtaining operation equipment and corresponding program controller channel data specifically comprises: the number and class of operating devices and the number, class and number of corresponding program controller channels.
5. The automatic capacity test time sequence setting method according to claim 1, wherein the algorithm of the setting expert database comprises: standard calculation formulas, data tables and experience parameters; the specific expression form of the standard calculation formula is related to the corresponding object; the data table is determined by combining historical data with simulation calculation; the experience parameter is obtained from actual working experience.
6. The automatic capacity test time sequence setting method according to claim 1, wherein the setting data table includes each channel number, channel name, channel command pulse start time, command pulse duration.
7. The automatic capacity test timing setting method according to claim 1, further comprising, after the generating of the complete setting data table: judging whether each data in the setting data table accords with a preset value, and if so, automatically setting the capacity test time sequence; if not, repeating the steps 3 to 5 until each data in the setting data table is consistent with the preset value.
8. The automatic timing adjustment method for capacity test according to claim 7, wherein the automatic timing adjustment for capacity test is completed based on the checked adjustment data table, specifically: transmitting the setting data to setting software so as to finish the timing sequence setting; the tuning software is TeamSeq.
9. The automatic timing method for capacity test according to claim 8, wherein the step of transmitting the setting data to the setting software to complete the timing specifically comprises: and establishing a dialogue through the setting software by using DDE process communication, and uploading data to the setting software for conversion by using a SetChannelData command.
10. A capacity test timing automatic setting system, comprising:
the selecting module is used for selecting corresponding power supply types, operation modes of the test products and test items according to actual working requirements;
the calling module is used for calling the setting expert database based on the selected power supply type, the operation mode of the test article and the test item to obtain channel data of the operation equipment and the corresponding program controller;
the query module is used for obtaining setting basic data based on the equipment management database and the test article management database; inquiring a sample management database to obtain the on-off time of a sample to be controlled in a test based on the acquired operation equipment and corresponding program controller channel data;
the first acquisition module is used for calling an algorithm of a setting expert database and acquiring setting data of each device and test article operation command based on setting basic data;
the generation module converts setting data of equipment and sample operation commands and on-off time of the samples to be controlled in the test into corresponding channel setting data, generates a complete setting data table, displays information of each channel and completes verification;
and the second acquisition module acquires the automatic setting of the capacity test time sequence based on the checked setting data table.
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