CN117148101A - Exception positioning method, medium and system for secondary circuit of extra-high voltage direct current converter station - Google Patents

Exception positioning method, medium and system for secondary circuit of extra-high voltage direct current converter station Download PDF

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Publication number
CN117148101A
CN117148101A CN202311042130.7A CN202311042130A CN117148101A CN 117148101 A CN117148101 A CN 117148101A CN 202311042130 A CN202311042130 A CN 202311042130A CN 117148101 A CN117148101 A CN 117148101A
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China
Prior art keywords
channel
secondary circuit
abnormal
direct current
information
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Pending
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CN202311042130.7A
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Chinese (zh)
Inventor
刘若鹏
史磊
徐辉
柴斌
毛春翔
宋海龙
孙璐
齐鹏洋
杨群
李�昊
张国斌
刘钊
刘廷堃
贾利利
万海峰
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Shanghai Jiuzhou Information Technology Co ltd
Super High Voltage Co Of State Grid Ningxia Electric Power Co ltd
State Grid Ningxia Electric Power Co Ltd
Original Assignee
Shanghai Jiuzhou Information Technology Co ltd
Super High Voltage Co Of State Grid Ningxia Electric Power Co ltd
State Grid Ningxia Electric Power Co Ltd
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Application filed by Shanghai Jiuzhou Information Technology Co ltd, Super High Voltage Co Of State Grid Ningxia Electric Power Co ltd, State Grid Ningxia Electric Power Co Ltd filed Critical Shanghai Jiuzhou Information Technology Co ltd
Priority to CN202311042130.7A priority Critical patent/CN117148101A/en
Publication of CN117148101A publication Critical patent/CN117148101A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
    • G01R31/2836—Fault-finding or characterising
    • G01R31/2843—In-circuit-testing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Locating Faults (AREA)

Abstract

The invention discloses a method, medium and system for locating abnormality of a secondary circuit of an extra-high voltage direct current converter station, which comprises the following steps: obtaining secondary circuit information of different channels of an extra-high voltage direct current converter station; performing abnormal voltage loop screening on the secondary loop information of the channel, determining whether the secondary loop of the channel is abnormal, and determining the positioning result of the abnormal secondary loop of the channel, wherein the secondary loop information comprises: channel type, cell number, equipment number, terminal block position information, and voltage value of secondary circuit of the channel. The invention can accurately judge the abnormal secondary circuit of the channel by utilizing the voltage value of the secondary circuit of the channel, thereby facilitating operation and maintenance personnel to grasp the related operation state of the secondary circuit.

Description

Exception positioning method, medium and system for secondary circuit of extra-high voltage direct current converter station
Technical Field
The invention relates to the technical field of extra-high voltage direct current converter stations, in particular to an extra-high voltage direct current converter station secondary circuit abnormality positioning method, medium and system.
Background
The information of the secondary circuit of the extra-high voltage direct current converter station is of various types, and the first type of data is primary system operation parameters, alarm and protection action parameters; the second type of data is the signal of the secondary system, which has the signal of the secondary system, the soft and hard pressing plate signal, the temperature, pressure, voltage, current signal, etc., the optical fiber communication in the extra-high voltage direct current converter station has a wide range, a data acquisition channel, a control signal and a communication signal. If the optical fiber data are lost, the performances are different, some of the optical fiber data are not influenced, some of the optical fiber data cause a switching system, some of the optical fiber data cause tripping, and therefore, when the fault loop of the digital twin system of the secondary loop of the extra-high voltage direct current converter station is determined, various fault types of the determined loop are considered.
If the secondary loop data is lost or broken, on one hand, no data exists, on the other hand, the switching of the master-slave system can be possibly caused, and the normal operation can be kept; if the master-slave switch is unsuccessful, a trip will be caused (if control related data is involved); if data is lost, a multidimensional anomaly, such as a fibre channel, will occur, with tens or hundreds of possible controlled amounts. The secondary circuit voltage value of the extra-high voltage direct current converter station generally does not change greatly, so that the effect of abnormality judgment through the secondary circuit voltage value in the prior art is poor.
Disclosure of Invention
The embodiment of the invention provides a secondary circuit abnormality positioning method, medium and system for an extra-high voltage direct current converter station, which are used for solving the problem that whether a secondary circuit is abnormal or not is difficult to accurately judge through the voltage of the secondary circuit in the prior art.
In a first aspect, a method for locating an abnormality of a secondary circuit of an extra-high voltage direct current converter station is provided, including:
obtaining secondary circuit information of different channels of an extra-high voltage direct current converter station;
performing abnormal voltage loop screening on the secondary loop information of the channel, determining whether the secondary loop of the channel is abnormal, and determining the positioning result of the abnormal secondary loop of the channel, wherein the secondary loop information comprises: channel type, cell number, equipment number, terminal block position information, and voltage value of secondary circuit of the channel.
In a second aspect, there is provided a computer readable storage medium having computer program instructions stored thereon; and when the computer program instructions are executed by the processor, the method for positioning the abnormality of the secondary circuit of the extra-high voltage direct current converter station according to the embodiment of the first aspect is realized.
In a third aspect, an extra-high voltage direct current converter station secondary circuit abnormality positioning system is provided, including: the computer readable storage medium as in the second aspect embodiment.
Thus, the embodiment of the invention can accurately judge the abnormal secondary circuit of the channel by utilizing the voltage value of the secondary circuit of the channel, and is convenient for operation and maintenance personnel to grasp the related operation state of the secondary circuit.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments of the present invention will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a method for locating an abnormality of a secondary circuit of an extra-high voltage direct current converter station according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of channel fault localization in accordance with an embodiment of the present invention;
fig. 3 is a block diagram of a secondary circuit abnormality positioning system of an extra-high voltage direct current converter station according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all 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.
The embodiment of the invention discloses an extra-high voltage direct current converter station secondary circuit abnormality positioning method. The embodiment of the invention aims at a channel of an extra-high voltage direct current converter station, a small chamber is connected below the channel, different devices are arranged in the small chamber, and terminal rows are connected below the devices. The abnormality is directed to the terminal block end terminal failure. As shown in fig. 1, the method of the embodiment of the invention includes the following steps:
step S101: and obtaining secondary circuit information of different channels of the extra-high voltage direct current converter station.
Specifically, the secondary circuit information includes: channel type, cell number, equipment number, terminal block position information, and voltage value of secondary circuit of channel. Wherein, the channel type includes: network channels, fibre channels, and analog channels.
Step S102: and carrying out abnormal voltage loop screening on the secondary loop information of the channel, determining whether the secondary loop of the channel is abnormal, and determining the positioning result of the secondary loop of the abnormal channel.
For step S102, the determination may be performed in two specific ways as follows.
The first way is:
1. for the secondary circuit of any channel, the voltage value of the secondary circuit of the channel is used for calculating the voltage change value and the voltage change rate of the secondary circuit of the channel.
Specifically, the voltage value of the secondary loop of the channel may be collected at intervals of a preset time. The preset time can be determined according to actual conditions.
Specifically, the calculation formula of the voltage variation value of the secondary circuit of the channel is as follows:
ΔU＝U n-1 -U n 。
wherein DeltaU represents the voltage variation value of the secondary circuit of the channel, U n-1 Representing the voltage value of the secondary loop of the channel acquired for the n-1 time, U n Representing the voltage value of the secondary loop of the channel for the nth acquisition.
Specifically, the calculation formula of the voltage change rate of the secondary circuit of the channel is as follows:
wherein,the voltage change rate of the secondary circuit of the channel is represented, and deltat represents the preset time of the interval between two adjacent secondary circuits for collecting the voltage value of the channel.
2. If the voltage change value of the secondary circuit of the channel is larger than a first preset threshold value corresponding to the channel type and the voltage change rate of the secondary circuit of the channel is larger than a second preset threshold value corresponding to the channel type, determining that the secondary circuit of the channel is abnormal.
It should be understood that the first preset threshold and the second preset threshold corresponding to different channel types are different and may be specifically set empirically. Generally, the first preset threshold of the analog channel is greater than the first preset threshold of the fiber channel, which is greater than the first preset threshold of the network channel. Similarly, the second preset threshold of the analog channel is greater than the second preset threshold of the fiber channel, and the second preset threshold of the fiber channel is greater than the second preset threshold of the network channel.
For example, for an analog channel, the first preset threshold is 3 and the second preset threshold is 2. For example, the first preset threshold of the analog channel is 3, the first preset threshold of the fiber channel is 1, and the first preset threshold of the network channel is 0.1.
3. And determining the positioning result of the secondary circuit of the abnormal channel according to the cell number, the equipment number, the terminal strip number and the terminal strip position information of the secondary circuit of the abnormal channel.
As shown in fig. 2, for convenience of description, a total of A, B, C, D, E hierarchical relationships are divided. A represents a channel type, wherein 1 represents an analog channel, 2 represents a fiber channel, and 3 represents a network channel. B represents the cell of the secondary circuit in which the channel is located, and the number represents the number of the cell. C represents the device placed in the cell and the number represents the device number. D represents the terminal strip of various devices and the numerals represent the numbers of the terminal strip. E represents the terminal block position, and the number represents position information, i.e., position number, which is also the final failure position. Thus, a loop A1- & gt B2- & gt C2- & gt D1- & gt E3 is selected to represent the 3 rd position of the 1 st row terminal row of the 2 nd equipment in the 2 nd equipment cell of the analog channel (A1), and if the secondary loop of the channel is abnormal, the channel can be positioned at the position. In fig. 2, the secondary circuit of the lightning path represents an abnormal path.
The second way is:
1. for the secondary circuit of any channel, the voltage value of the secondary circuit of the channel is used for calculating the voltage change value and the voltage change rate of the secondary circuit of the channel.
This step is the same as the first mode and will not be described again here.
2. And if the voltage change value of the secondary circuit of the channel is larger than a third preset threshold value corresponding to the channel type and the voltage change rate of the secondary circuit of the channel is larger than a fourth preset threshold value corresponding to the channel type, carrying out weighted summation on the voltage change value and the voltage change rate of the secondary circuit of the channel to obtain a discrimination value of the secondary circuit of the channel.
The third preset threshold is smaller than the first preset threshold, and the fourth preset threshold is smaller than the second preset threshold.
The weighted sum is calculated as follows:
wherein U is w Discrimination value w representing secondary circuit of the channel 1 Weights, w, representing the voltage variation values corresponding to the channel types 2 A weight representing the rate of change of voltage corresponding to the channel type. It should be understood that the channel type is different, and the two weight values are different, and may be specifically set empirically, and generally, the voltage change rate is weighted more than the voltage change value. w (w) 1 +w 2 ＝1。
More preferably, although the weight of the voltage change rate is larger than the weight of the voltage change value, the weight of the voltage change value and the weight of the voltage change rate are also changed according to the change of the voltage, specifically as follows:
(1) If the voltage change value of the secondary circuit of the channel is greater than the third preset threshold corresponding to the channel type and the voltage change rate of the secondary circuit of the channel is greater than the fourth preset threshold corresponding to the channel type, the weight of the voltage change value corresponding to the channel type is a first preset weight, and the weight of the voltage change rate corresponding to the channel type is a second preset weight.
(2) If the voltage change value of the secondary circuit of the channel is greater than the sixth preset threshold corresponding to the channel type and the voltage change rate of the secondary circuit of the channel is greater than the seventh preset threshold corresponding to the channel type, the weight of the voltage change value corresponding to the channel type is a third preset weight, and the weight of the voltage change rate corresponding to the channel type is a fourth preset weight.
The sixth preset threshold is greater than the third preset threshold and less than the first preset threshold, and the seventh preset threshold is greater than the fourth preset threshold and less than the second preset threshold.
The first preset weight is greater than the third preset weight and less than the second preset weight, and the third preset weight is greater than the fourth preset weight. The sum of the first preset weight and the second preset weight is 1, and the sum of the third preset weight and the fourth preset weight is 1.
The inventor finds that in the abnormal change process, the weight of the voltage change rate is always larger than the weight of the voltage change value, but the voltage change rate plays an increasing role in the accuracy of abnormal judgment, so that the two weights are divided into sections.
3. If the discrimination value of the secondary circuit of the channel is larger than a fifth preset threshold value corresponding to the channel type, determining that the secondary circuit of the channel is abnormal.
The fifth preset threshold may be empirically set.
4. And determining the positioning result of the secondary circuit of the abnormal channel according to the cell number, the equipment number, the terminal strip number and the terminal strip position information of the secondary circuit of the abnormal channel.
This step is the same as the first mode and will not be described again here.
Since the first mode is to satisfy that the voltage change value is greater than the first preset threshold value and the voltage change rate is greater than the second preset threshold value, the secondary circuit abnormality of the channel can be determined, which may result in that the secondary circuit abnormality of the channel is determined after a period of time, so that the operation is continued during the period of time to easily cause larger faults. Thus, this problem can be effectively solved by the second mode. In the second mode, when the voltage change value and the voltage change rate are larger than the smaller threshold value, the weighted sum of the voltage change value and the voltage change rate is calculated, and the weighted sum is compared with the threshold value to determine whether the fault is generated. The voltage change value and the voltage change rate reflect different voltage change conditions, one reflects the voltage change span and one reflects the voltage change speed. When the voltage change speed is fast, the secondary circuit of the channel is indicated to be abnormal rapidly, so that the weight of the voltage change rate is larger, and the change trend of the channel is reflected more accurately. By the second mode, the abnormality can be found earlier than the first mode so as to carry out corresponding processing, thereby effectively avoiding larger faults caused by the fact that the abnormality is not processed in time for a long time.
Furthermore, it should be understood that the voltage value of the secondary loop of the analog channel is normally collected to be greater than the voltage value of the secondary loop of the fiber channel, which is greater than the voltage value of the secondary loop of the network channel, and generally, the voltage value of the secondary loop of the analog channel is greater than 50V, the voltage value of the secondary loop of the fiber channel is greater than 0.1V, and the voltage value of the secondary loop of the network channel is greater than 0.01V. When the value is not satisfied, the abnormality of the secondary circuit of the channel can be directly judged. The method of the embodiment of the invention is applied to the scene meeting the above value.
Preferably, after step S102, the method in the embodiment of the present invention further includes:
secondary loops of abnormal channels are marked and displayed with colors.
Thus, the operation and maintenance personnel can more clearly and definitely know the secondary circuit of the abnormal channel so as to carry out corresponding treatment.
In addition, the embodiment of the invention also provides a computer readable storage medium, and the computer readable storage medium is stored with computer program instructions; and when the computer program instructions are executed by the processor, the method for positioning the abnormality of the secondary circuit of the extra-high voltage direct current converter station is realized.
In addition, the embodiment of the invention also provides an extra-high voltage direct current converter station secondary circuit abnormality positioning system, which comprises: the computer-readable storage medium as in the above embodiments.
The system is a digital twin system using the C language as a script.
Specifically, as shown in fig. 3, the system specifically includes the following modules:
and the virtual direct current control protection module is used for acquiring the secondary circuit information of different channels of the extra-high voltage direct current converter station.
Specifically, the virtual control protection module can obtain relevant secondary circuit information of secondary circuit entities such as CT (current transformer), PT (voltage transformer) and sensor of the extra-high voltage direct current converter station. The related secondary circuit information of secondary circuit entities such as CT, PT, sensors and the like is specific information obtained by collecting secondary circuits of the extra-high voltage direct current converter station, the related secondary circuit information of secondary circuit entities such as CT, PT, sensors and the like mainly relates to fiber channels, analog channels and network channels, and the quantity of each secondary circuit information comprises a plurality of types.
Specifically, all secondary circuit information acquired by the virtual control protection module includes: channel type, cell number, equipment number, terminal block position information, and voltage value of secondary circuit of channel.
In addition, the virtual control protection module can also receive relevant data of the extra-high voltage direct current converter station control protection system, secondary circuit information transmitted by a secondary circuit entity is compared with the actual control protection system of the converter station, and the actual secondary circuit information can be set to be in a virtual position or consistent with the specific position of the actual secondary circuit information.
Preferably, the virtual dc control protection module includes: an AC/DC station control system, a pole control system, a DC protection system, an AC protection system and a virtual body of a converter station protection system. The ac/dc control system, the pole control system, the dc protection system, the ac protection system and the converter station protection system are all conventional components of the existing extra-high voltage dc converter station control protection system, and are not described herein.
And the data acquisition module is used for acquiring the secondary loop information of different channels sent by the virtual direct current control protection module. In addition, the data acquisition module can classify and summarize the received secondary circuit information of different channels according to the channels.
The data processing module is used for receiving the secondary circuit information of the channel sent by the data acquisition module, and if the secondary circuit information of the channel is lost, the secondary circuit information of the channel is acquired again from the data acquisition module.
The data analysis module is used for carrying out abnormal voltage loop screening on the secondary loop information of the channel sent by the data processing module, determining whether the secondary loop of the channel is abnormal or not, and determining the positioning result of the secondary loop of the abnormal channel.
Preferably, the system further comprises:
the loop information output module is used for receiving the secondary loop information of the channel, the result of whether the secondary loop of the channel is abnormal or not and the positioning result of the secondary loop of the abnormal channel, which are sent by the data analysis module. Namely, the secondary loop information of the normal channel and the secondary loop information of the abnormal channel are transmitted to the loop information output module.
The display module is used for displaying the physical link diagram of the extra-high voltage direct current converter station, and the secondary circuit information of all channels, the result of whether the secondary circuit of the channel is abnormal or not and the positioning result of the secondary circuit of the abnormal channel, which are sent by the received circuit information output module, and marking the secondary circuit of the abnormal channel by using colors according to the positioning result of the secondary circuit of the abnormal channel.
By highlighting the secondary circuit of the abnormal channel, an operation and maintenance person can intuitively see the specific position and physical link relation of the secondary circuit of the abnormal channel so as to prompt the operation person that the secondary circuit of the abnormal channel is abnormal.
Preferably, the system further comprises:
the management module is used for controlling the operation of the virtual direct current control protection module, carrying out information exchange and storage exchange with the virtual direct current control protection module, and carrying out information exchange and storage exchange with the display module.
In summary, the embodiment of the invention can accurately judge the abnormal secondary circuit of the channel by utilizing the voltage value of the secondary circuit of the channel, is convenient for operation and maintenance personnel to grasp the related operation state of the secondary circuit, and is also convenient for the operation and maintenance personnel to more intuitively know related abnormality by displaying the abnormal secondary circuit of the channel.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims (10)

1. The method for locating the abnormality of the secondary circuit of the extra-high voltage direct current converter station is characterized by comprising the following steps of:
obtaining secondary circuit information of different channels of an extra-high voltage direct current converter station;
performing abnormal voltage loop screening on the secondary loop information of the channel, determining whether the secondary loop of the channel is abnormal, and determining the positioning result of the abnormal secondary loop of the channel, wherein the secondary loop information comprises: channel type, cell number, equipment number, terminal block position information, and voltage value of secondary circuit of the channel.
2. The method for locating an abnormality in a secondary circuit of an extra-high voltage dc converter station according to claim 1, wherein the step of screening the secondary circuit information of the channel for an abnormal voltage circuit includes:
for the secondary circuit of any channel, calculating the voltage change value and the voltage change rate of the secondary circuit of the channel by adopting the voltage value of the secondary circuit of the channel;
if the voltage change value of the secondary circuit of the channel is larger than a first preset threshold value corresponding to the channel type, and the voltage change rate of the secondary circuit of the channel is larger than a second preset threshold value corresponding to the channel type, determining that the secondary circuit of the channel is abnormal;
and determining the positioning result of the secondary circuit of the abnormal channel according to the cell number, the equipment number, the terminal strip number and the terminal strip position information of the secondary circuit of the abnormal channel.
3. The method for locating an abnormality in a secondary circuit of an extra-high voltage dc converter station according to claim 1, wherein the step of screening the secondary circuit information of the channel for an abnormal voltage circuit includes:
for the secondary circuit of any channel, calculating the voltage change value and the voltage change rate of the secondary circuit of the channel by adopting the voltage value of the secondary circuit of the channel;
if the voltage change value of the secondary circuit of the channel is larger than a third preset threshold value corresponding to the channel type and the voltage change rate of the secondary circuit of the channel is larger than a fourth preset threshold value corresponding to the channel type, carrying out weighted summation on the voltage change value and the voltage change rate of the secondary circuit of the channel to obtain a discrimination value of the secondary circuit of the channel;
if the discrimination value of the secondary circuit of the channel is larger than a fifth preset threshold value corresponding to the channel type, determining that the secondary circuit of the channel is abnormal;
and determining the positioning result of the secondary circuit of the abnormal channel according to the cell number, the equipment number, the terminal strip number and the terminal strip position information of the secondary circuit of the abnormal channel.
4. The extra-high voltage direct current converter station secondary circuit abnormality positioning method according to claim 1, wherein the channel type includes: analog channels, fibre channels, and network channels.
5. The method for locating an abnormal secondary circuit of an extra-high voltage direct current converter station according to claim 1, wherein after the step of screening the secondary circuit information for an abnormal voltage circuit, the method further comprises:
the secondary circuit of the channel is marked with a color and displayed abnormal.
6. A computer-readable storage medium, characterized by: the computer readable storage medium has stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement the method for locating anomalies in secondary circuits of an extra-high voltage direct current converter station according to any one of claims 1 to 5.
7. An extra-high voltage direct current converter station secondary circuit abnormality positioning system, which is characterized by comprising: the computer-readable storage medium of claim 6.
8. The extra-high voltage direct current converter station secondary circuit abnormality positioning system according to claim 7, further comprising:
the virtual direct current control protection module is used for acquiring secondary circuit information of different channels of the extra-high voltage direct current converter station;
the data acquisition module is used for acquiring the secondary circuit information of different channels sent by the virtual direct current control protection module;
the data processing module is used for receiving the secondary circuit information of the channel sent by the data acquisition module, and acquiring the secondary circuit information of the channel from the data acquisition module again if the secondary circuit information of the channel is lost;
the data analysis module is used for carrying out abnormal voltage loop screening on the secondary loop information of the channel sent by the data processing module, determining whether the secondary loop of the channel is abnormal or not, and determining the positioning result of the abnormal secondary loop of the channel.
9. The extra-high voltage direct current converter station secondary circuit abnormality positioning system according to claim 8, further comprising:
the loop information output module is used for receiving the secondary loop information of the channel, which is sent by the data analysis module, the result of whether the secondary loop of the channel is abnormal or not, and the positioning result of the abnormal secondary loop of the channel;
the display module is used for displaying the physical link diagram of the extra-high voltage direct current converter station, and receiving all secondary circuit information of the channels, the result of whether the secondary circuits of the channels are abnormal and the positioning result of the abnormal secondary circuits of the channels, which are sent by the circuit information output module, and marking the abnormal secondary circuits of the channels by colors according to the positioning result of the abnormal secondary circuits of the channels.
10. The extra-high voltage direct current converter station secondary circuit abnormality positioning system according to claim 9, further comprising:
and the management module is used for controlling the operation of the virtual direct current control protection module, carrying out information exchange and storage exchange with the virtual direct current control protection module, and carrying out information exchange and storage exchange with the display module.
CN202311042130.7A 2023-08-17 2023-08-17 Exception positioning method, medium and system for secondary circuit of extra-high voltage direct current converter station Pending CN117148101A (en)

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CN202311042130.7A CN117148101A (en) 2023-08-17 2023-08-17 Exception positioning method, medium and system for secondary circuit of extra-high voltage direct current converter station

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Application Number Priority Date Filing Date Title
CN202311042130.7A CN117148101A (en) 2023-08-17 2023-08-17 Exception positioning method, medium and system for secondary circuit of extra-high voltage direct current converter station

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