CN115528643A - Excitation wave recording method and system - Google Patents
Excitation wave recording method and system Download PDFInfo
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- CN115528643A CN115528643A CN202211514619.5A CN202211514619A CN115528643A CN 115528643 A CN115528643 A CN 115528643A CN 202211514619 A CN202211514619 A CN 202211514619A CN 115528643 A CN115528643 A CN 115528643A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
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Abstract
The invention discloses an excitation wave recording method and system, wherein the excitation wave recording comprises disturbance wave recording and action wave recording; the excitation recording refers to that when the specified excitation occurs, the relay protection device records the current instantaneous value, the voltage instantaneous value, the value of the input quantity, the value of the output quantity, the value of the virtual remote signaling before, during and after the specified excitation occurs, and the variable values of all intermediate monitoring points related to the working logic of the protection function which is put into operation in the period; the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set starting fixed value of the sudden change of the disturbance recording, or the input quantity, the output quantity and the virtual remote signaling are changed; and the excitation of the action recording is that the fixed value corresponding to the protection function which is put into operation meets the action condition. The method can check the input and output of the backup power automatic switching device and the variable value of the middle monitoring point through action recording and disturbance recording under the condition that the traditional fault recording cannot be started, and is convenient for follow-up fault analysis.
Description
Technical Field
The invention relates to the technical field of relay protection, in particular to an excitation wave recording method and system.
Background
The traditional relay protection device has a fault recording function, is used for recording current and voltage instantaneous values before, in and after a fault occurs according to a time interval record and a COMTRADE format when the fault occurs and a protection outlet acts, and simultaneously recording an input value and an output value during the period, so that a COMTRADE file can be conveniently opened afterwards, and the whole action behavior of the fault can be analyzed.
However, if there are the following two cases, it is difficult to analyze the operation situation using the conventional fault recording function.
The first case is: when the relay protection device is debugged or operated, the current or the voltage of the protection function meets the fixed value requirement, but the action time limit is not exceeded, namely, the protection does not act at an outlet, so that no fault recording exists, and the condition that the protection exceeds the fixed value cannot be known.
The second case is: when the relay protection device is debugged or operated, the current or the voltage of the protection function does not meet the fixed value requirement, the protection element does not act, and even no outlet acts, so that no fault recording exists, and the reason why the protection does not act cannot be analyzed.
Therefore, in the above two cases, the details of the operation of the protection logic cannot be known precisely, and sometimes cannot be known, and it is difficult to analyze and solve the problem. In addition, unlike conventional measurement and control devices, a relay protection device may not operate for many years, and the working condition, the operating behavior, and the voltage and current fluctuation during the period are not known, and it is urgently needed to provide a method for accurately recording the working condition, the operating behavior, and the voltage and current fluctuation of the relay protection device.
Disclosure of Invention
The purpose of the invention is as follows: aiming at the technical problems, the invention provides an excitation wave recording method, which is characterized in that under the condition that the traditional fault wave recording cannot be started, a wave recording graph is obtained through action wave recording (corresponding to the first condition) and disturbance wave recording (corresponding to the second condition) to check the input and output of the backup power automatic switching device and the variable value of an intermediate monitoring point, so that the subsequent fault analysis is facilitated; meanwhile, the invention also provides a system for exciting and recording waves, which can check the variable values of the spare power automatic switching input and output and the middle monitoring point.
The technical scheme is as follows: in order to solve the problems, the invention discloses an excitation wave recording method, wherein the excitation wave recording comprises disturbance wave recording and action wave recording;
the excitation recording refers to that when the specified excitation occurs, the relay protection device records current instantaneous values and voltage instantaneous values before, during and after the occurrence of the specified excitation according to a time interval and a COMTRADE format, and simultaneously records values of input quantity, output quantity, virtual remote signaling and variable values of all intermediate monitoring points related to working logic of a protection function during the period, including the timing of a counter; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output switching value refers to the output switching value, and is 1 when the output switching value exists, and is 0 when the output switching value does not exist; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0;
the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set disturbance recording sudden change starting fixed value, or the input quantity, the output quantity and the virtual remote signaling change; the abrupt change refers to a change value of input current or voltage; and the excitation of the action recording is that the fixed value corresponding to the protection function which is put into operation meets the action condition.
Further, the excitation wave recording method selects functions through a wave recording menu, the function selection is set through a display panel and a keyboard of the relay protection device, and the function selection is set in a computer communication mode or in a computer communication mode; the wave recording menu comprises two stages, wherein an excitation wave recording menu option is arranged in a first-stage menu, and an action wave recording function option, a disturbance wave recording current mutation starting constant value setting option and a disturbance wave recording voltage mutation starting constant value setting option are arranged in a second-stage menu; corresponding excitation wave recording is completed by selecting the action wave recording function option and the disturbance wave recording function option and setting a start constant value of a disturbance wave recording current abrupt variable and a start constant value of a disturbance wave recording voltage abrupt variable, and the selected wave recording is correspondingly stored in the relay protection device.
Furthermore, the disturbance wave recording, the action wave recording and the traditional fault wave recording are positioned in different storage areas in the relay protection device, and the priority of the storage is sequentially increased.
Furthermore, the priority of uploading the disturbance wave recording, the action wave recording and the fault wave recording to the background server is sequentially increased.
In addition, the invention also provides an excitation wave recording system, which comprises a disturbance wave recording module and an action wave recording module;
the disturbance wave recording module is used for recording current instantaneous values and voltage instantaneous values before, in the generation process and after the generation of the specified excitation, simultaneously recording input values, output values and virtual remote signaling values in the period, and simultaneously recording variable values of all middle monitoring points related to working logic of a protection function in operation in the period, including the timing of a counter, according to a time interval and a COMTRADE format by the relay protection device when the specified excitation in the disturbance wave recording occurs; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output amount refers to the output switching amount, and is 1 if the output amount is output, and is 0 if the output amount is not output; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0; the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set disturbance recording sudden change starting fixed value, or the input quantity, the output quantity and the virtual remote signaling change; the abrupt change refers to a change value of input current or voltage;
the action wave recording module is used for recording current instantaneous values and voltage instantaneous values before, in the generation process and after the generation of the specified excitation, simultaneously recording values of input quantity, output quantity and virtual remote signaling during the specified excitation according to a time interval and a COMTRADE format when the specified excitation occurs, and simultaneously recording variable values of all middle monitoring points related to working logic of a protection function which is put into operation during the specified excitation, including the timing of a counter; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output switching value refers to the output switching value, and is 1 when the output switching value exists, and is 0 when the output switching value does not exist; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0; and the excitation of the action recording is that the fixed value corresponding to the protection function which is put into operation meets the action condition.
Furthermore, the present invention also provides a computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the above-mentioned method.
Has the beneficial effects that: compared with the prior art, the excitation wave recording method provided by the invention has the remarkable advantages that: 1. when the voltage, the current and the input amount meet protection action conditions but protection does not have an outlet action, and the traditional fault recording cannot be started, the variable values of the backup power automatic switching input and output and the middle monitoring point are obtained through the action recording, so that subsequent fault analysis is facilitated; 2. when the traditional fault recording cannot be started and the fixed value corresponding to the protection function put into operation does not meet the action condition, the specific working condition, action behavior condition and voltage and current fluctuation condition of the relay protection device are obtained through disturbance recording.
Compared with the prior art, the excitation wave recording system has the remarkable advantages that the specific working condition, action behavior condition, voltage and current condition of the relay protection device can be obtained through the action wave recording module and the disturbance wave recording module.
Drawings
FIG. 1 shows a menu structure for exciting recording in the present invention.
Fig. 2 is a discharge logic diagram of the backup power automatic switching mode 3 according to the present invention.
Fig. 3 is a charging logic diagram of the backup power automatic switching mode 3 according to the present invention.
Fig. 4 is a logic diagram of the operation of the backup power automatic switching mode 3 according to the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings.
The invention provides an excitation wave recording method, wherein the excitation wave recording means that when specified excitation occurs, a relay protection device records current instantaneous values and voltage instantaneous values before, in and after the specified excitation occurs according to a time interval and a COMTRADE format, and simultaneously records values of input quantity, output quantity and virtual remote signaling of the specified excitation, and variable values of all intermediate monitoring points related to working logic of a protection function which is put into operation during the specified excitation, including the timing of a counter; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output switching value refers to the output switching value, and is 1 when the output switching value exists, and is 0 when the output switching value does not exist; the virtual telecommand means a logic value expressed as an input amount in software, wherein the logic value is '1' when the virtual telecommand is input, and the logic value is '0' when the virtual telecommand is not input;
the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set starting fixed value of the sudden change of the disturbance recording, or the input quantity, the output quantity and the virtual remote signaling are changed; the abrupt change amount refers to a change value of input current or voltage; and the excitation of the action recording is that the fixed value corresponding to the protection function which is put into operation meets the action condition.
Specifically, the excitation wave recording method provided by the invention selects functions through a wave recording menu, as shown in fig. 1. The excitation wave recording menu comprises two stages, wherein an excitation wave recording menu option is arranged in the first stage menu, and an action wave recording function selection, a disturbance wave recording current mutation starting constant value setting option and a disturbance wave recording voltage mutation starting constant value setting option are arranged in the second stage menu.
As shown in fig. 2 to 4, logic diagrams corresponding to discharging, charging and operating in an automatic standby power supply switching mode (standby power supply switching mode 3) are further described for different application scenarios based on the logic diagrams of fig. 2 to 4.
In a first scenario, when the voltage, the current and the input quantity meet the spare power automatic switching action condition, the spare power automatic switching jumps by 1DL, namely, the spare power automatic switching has an outlet action.
In the wave recording menu structure, the selection action wave recording and the selection disturbance wave recording are not selected.
For the scenario, as the backup power automatic switching device jumps 1DL, that is, the backup power automatic switching device has an outlet motion, a conventional fault recording in the relay protection device is started at this time, and a motion process of backup power automatic switching input and output (corresponding to monitoring points 1-16) is obtained through recording graph information of the fault recording.
Therefore, when a fault occurs in the first scene and the protection outlet acts, the related fault information can be obtained by utilizing the traditional fault recording function and the subsequent analysis can be carried out.
And in a second scenario, when the voltage, the current and the switching-in quantity meet the operation conditions of the backup power automatic switching, the backup power automatic switching does not jump 1DL, namely the backup power automatic switching does not have an outlet operation, and the backup power automatic switching does not have an operation.
In the wave recording menu structure, the selection of action wave recording and the selection of disturbance wave recording are not selected.
For the scene, the backup power automatic switching device has no outlet action, so that the traditional fault recording cannot be started. If the 'action selection recording' and 'disturbance selection recording' are not selected, the backup power automatic switching input and output and the action process of the middle monitoring point cannot be recorded and obtained aiming at the scenes, and therefore fault analysis cannot be carried out.
And in a third scenario, when the voltage, the current and the switching-on/switching-off quantity meet the action conditions of the spare power automatic switching, the spare power automatic switching does not jump to 1DL, and the action of '1 bus without voltage' is carried out.
And (3) selecting 'selecting action recording' and 'selecting disturbance recording' when the 'selection action recording' is not selected in the recording menu structure.
For the scene, as the backup power automatic switching has no outlet action, the traditional fault recording can not be started. However, since the "1 bus no-voltage" action, that is, the action of the monitoring point 12 in fig. 3, that is, the fixed value corresponding to the protection function in operation meets the action condition, the action recording is started, and not only the action process of the conventional backup power automatic switch input and output (corresponding to the monitoring points 1-16) can be recorded and obtained, but also the action process of the middle monitoring points 17-20 can be recorded and obtained, wherein the middle monitoring points 19 and 20 are the timing of the counter.
Therefore, although fault recording cannot be started in the third scene, due to the existence of the excitation of the action of '1 bus without voltage', the input and output of the backup power automatic switch and the middle monitoring point can be recorded and obtained by starting the action recording, so that fault analysis is performed. In addition, the menu setting of this scene also can start the record wave of scene one and two, no matter whether can start traditional trouble record wave promptly, as long as there is "1 mother's no pressure" action, can start the action record wave promptly, can record and look over spare power automatic switching input and output to and the middle monitoring point.
And in the fourth scenario, when the voltage, the current and the switching-in quantity meet the operation conditions of the backup power automatic switching, the backup power automatic switching does not jump 1DL, the' 1 bus voltage does not act, and the 1 bus voltage suddenly drops by 11V.
And in the wave recording menu structure setting, selecting action wave recording and disturbance wave recording, and setting a disturbance wave recording voltage break variable starting constant value to be 10V.
For the scene, as the spare power automatic switching device has no outlet action, the traditional fault recording can not be started, and the '1 bus without pressure' has no action, so that the action recording can not be started; however, the sudden change value 11V of the 1 bus voltage is greater than 10V, so that disturbance wave recording is started, the action process of the conventional backup power automatic switching input and output (corresponding to the monitoring points 1-16) is recorded and obtained, and the action process of the intermediate monitoring points 17-20 can be recorded and obtained, wherein the intermediate monitoring points 19 and 20 are used for timing of the counter.
In addition, the menu setting of the scene can also start the recording of the scene one to the scene three. For example: in the third scene, when the action of '1 mother without voltage', namely the voltage is changed from 57.7V to 0V, the excitation of voltage mutation quantity 57.7V which is more than 10V of 'disturbance wave recording voltage mutation quantity starting fixed value' exists, and disturbance wave recording is inevitably started; although the spare power automatic switch in the second scene and the first scene has no outlet action and does not start the traditional fault recording, the disturbance recording can be started as long as the voltage mutation amount of the disturbance recording is larger than the starting fixed value, and the input and the output of the spare power automatic switch and the middle monitoring point can be recorded and obtained, so that the fault analysis can be carried out.
According to the scene, the disturbance wave recording is easier to act than the action wave recording, and the action wave recording is easier to act than the traditional fault wave recording; this means that the disturbance recording covers the action recording, which covers the traditional fault recording; namely, the frequency of the disturbance wave recording starting is higher than that of the action wave recording, and the frequency of the action wave recording starting is higher than that of the traditional fault wave recording.
In addition, the invention also provides an excitation wave recording system which comprises a disturbance wave recording module and an action wave recording module.
The disturbance wave recording module is used for recording current instantaneous values and voltage instantaneous values before, in the generation process and after the specified excitation, simultaneously recording values of input quantity, output quantity and virtual remote signaling during the specified excitation according to time intervals and a COMTRADE format when the specified excitation occurs by the disturbance wave recording module, and simultaneously recording variable values of all middle monitoring points related to working logic of a protection function which is put into operation during the specified excitation, including the timing of a counter; the input amount refers to input switching amount, and is 1 when the input amount is input, and is 0 when the input amount is not input; the output switching value refers to the output switching value, and is 1 when the output switching value exists, and is 0 when the output switching value does not exist; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0; the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set starting fixed value of the sudden change of the disturbance recording, or the input quantity, the output quantity and the virtual remote signaling are changed; the abrupt change refers to a change value of an input current or voltage.
The action recording module is used for recording current instantaneous values and voltage instantaneous values before, in the generation process and after the generation of the specified excitation, simultaneously recording input values, output values and virtual remote signaling values in the period, and simultaneously recording all middle monitoring points related to working logic of a protection function in operation in the period, including the timing of a counter, according to time intervals and a COMTRADE format by the relay protection device; the input amount refers to input switching amount, and is 1 when the input amount is input, and is 0 when the input amount is not input; the output amount refers to the output switching amount, and is 1 if the output amount is output, and is 0 if the output amount is not output; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0; and the excitation of the action recording is that a fixed value corresponding to the protection function which is put into operation meets the action condition.
Claims (7)
1. The excitation wave recording method is characterized in that the excitation wave recording comprises disturbance wave recording and action wave recording;
the excitation wave recording means that when the specified excitation occurs, the relay protection device records the current instantaneous value and the voltage instantaneous value before, during and after the specified excitation occurs according to the time interval and the COMTRADE format, and simultaneously records the value of the input quantity, the value of the output quantity, the value of the virtual remote signaling and the variable values of all middle monitoring points related to the working logic of the protection function which is put into operation during the period, including the timing of a counter; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output switching value refers to the output switching value, and is 1 when the output switching value exists, and is 0 when the output switching value does not exist; the virtual remote signaling is represented as a logic value of an input amount, and is 1 if virtual remote signaling input exists and is 0 if virtual remote signaling input does not exist;
the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set starting fixed value of the sudden change of the disturbance recording, or the input quantity, the output quantity and the virtual remote signaling are changed; the abrupt change refers to a change value of input current or voltage;
and the excitation of the action recording is that the fixed value corresponding to the protection function which is put into operation meets the action condition.
2. The excitation wave recording method according to claim 1, wherein the excitation wave recording method is characterized in that function selection is performed through a wave recording menu, the function selection is selectively set through a display panel and a keyboard of a relay protection device, and the function selection is set through a computer communication mode;
the wave recording menu comprises two stages, wherein an excitation wave recording menu option is arranged in a first-stage menu, and an action wave recording function option, a disturbance wave recording current mutation starting constant value setting option and a disturbance wave recording voltage mutation starting constant value setting option are arranged in a second-stage menu;
and corresponding excitation wave recording is finished by selecting the action wave recording function option and the disturbance wave recording function option, setting a starting constant value of a disturbance wave recording current mutation and a starting constant value of a disturbance wave recording voltage mutation, and correspondingly storing the selected wave recording in the relay protection device.
3. The excitation recording method according to claim 1, wherein the disturbance recording and the action recording and the fault recording are located in different storage areas in the relay protection device, and the priority of the storage is sequentially increased.
4. The excitation wave recording method of claim 3, wherein the priority of uploading the disturbance wave recording, the action wave recording and the fault wave recording to the background server is sequentially increased.
5. An excitation wave recording system is characterized by comprising a disturbance wave recording module and an action wave recording module;
the disturbance wave recording module is used for recording current instantaneous values and voltage instantaneous values before, in the generation process and after the generation of the specified excitation, simultaneously recording values of input quantity, output quantity and virtual remote signaling during the period, and simultaneously recording variable values of all middle monitoring points related to working logic of a protection function which is put into operation during the period, including the timing of a counter, according to a time interval and a COMTRADE format by the relay protection device; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output amount refers to the output switching amount, and is 1 if the output amount is output, and is 0 if the output amount is not output; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0; the excitation of disturbance recording is that the sudden change of the input current or voltage exceeds the set disturbance recording sudden change starting fixed value, or the input quantity, the output quantity and the virtual remote signaling change; the abrupt change refers to a change value of input current or voltage;
the action wave recording module is used for recording current instantaneous values and voltage instantaneous values before, in the generation process and after the generation of the specified excitation, simultaneously recording values of input quantity, output quantity and virtual remote signaling during the specified excitation according to a time interval and a COMTRADE format when the specified excitation occurs, and simultaneously recording variable values of all middle monitoring points related to working logic of a protection function which is put into operation during the specified excitation, including the timing of a counter; the input amount refers to input switching amount, and is 1 when the input switching amount is input, and is 0 when the input switching amount is not input; the output amount refers to the output switching amount, and is 1 if the output amount is output, and is 0 if the output amount is not output; the virtual telecommand is expressed as a logic value of the input quantity, the input with the virtual telecommand is 1, and the input without the virtual telecommand is 0; and the excitation of the action recording is that the fixed value corresponding to the protection function which is put into operation meets the action condition.
6. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any one of claims 1 to 4 are implemented by the processor when executing the computer program.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 4.
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| CN101447698A (en) * | 2008-12-08 | 2009-06-03 | 中国电力科学研究院 | Centralized type wave recording system of digital transformer substation |
| CN106655490A (en) * | 2016-10-19 | 2017-05-10 | 国网浙江省电力公司温州供电公司 | A fault recording data fusion system based on multiple substations |
| CN109888922A (en) * | 2019-03-06 | 2019-06-14 | 中国南方电网有限责任公司 | A kind of fault wave recording device, decentralization fault recording system and method |
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- 2022-11-30 CN CN202211514619.5A patent/CN115528643B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101447698A (en) * | 2008-12-08 | 2009-06-03 | 中国电力科学研究院 | Centralized type wave recording system of digital transformer substation |
| CN106655490A (en) * | 2016-10-19 | 2017-05-10 | 国网浙江省电力公司温州供电公司 | A fault recording data fusion system based on multiple substations |
| CN109888922A (en) * | 2019-03-06 | 2019-06-14 | 中国南方电网有限责任公司 | A kind of fault wave recording device, decentralization fault recording system and method |
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