CN115313621A - Automatic operation and maintenance system and method for intelligent substation based on grey theory - Google Patents

Automatic operation and maintenance system and method for intelligent substation based on grey theory Download PDF

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Publication number
CN115313621A
CN115313621A CN202210580420.6A CN202210580420A CN115313621A CN 115313621 A CN115313621 A CN 115313621A CN 202210580420 A CN202210580420 A CN 202210580420A CN 115313621 A CN115313621 A CN 115313621A
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maintenance
data
equipment
unit
acquisition device
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Inventor
匡红刚
易鹏飞
李晓斌
张华宣
姚远
罗元波
冯超
杜青云
谭金练
彭雨
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STATE GRID CHONGQING ELECTRIC POWER Co CHANGSHOU POWER SUPPLY BRANCH
State Grid Corp of China SGCC
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STATE GRID CHONGQING ELECTRIC POWER Co CHANGSHOU POWER SUPPLY BRANCH
State Grid Corp of China SGCC
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Priority to CN202210580420.6A priority Critical patent/CN115313621A/en
Publication of CN115313621A publication Critical patent/CN115313621A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16—Electric power substations

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention provides an intelligent substation automatic operation and maintenance system based on a grey theory, which comprises a data acquisition device, an operation and maintenance relay unit, an inspection monitoring unit, an operation and maintenance master station unit and an intelligent mobile terminal, wherein the data acquisition device is used for acquiring a data of an intelligent substation; the data acquisition device is used for acquiring and outputting the operation data of the secondary equipment; the operation and maintenance relay unit is in communication connection with the data acquisition device, receives the operation data output by the data acquisition device and transmits the operation data to the operation and maintenance monitoring unit; the operation and maintenance master station unit is in communication connection with the operation and maintenance relay unit and is used for acquiring the data of the power distribution equipment and outputting the data to the operation and maintenance monitoring unit; the operation and maintenance monitoring unit is used for receiving the data output by the operation and maintenance master station unit and the data acquisition device, processing and analyzing the data by adopting a grey system theory and analyzing the faults of the monitored equipment; the intelligent mobile terminal is in communication connection with the operation and maintenance monitoring unit and used for receiving fault analysis results, intelligent inspection, active early warning and mobile operation functions of the transformer substation can be achieved through the system, and early warning efficiency and accuracy of the system are effectively improved.

Description

Automatic operation and maintenance system and method for intelligent substation based on grey theory
Technical Field
The invention relates to a substation operation and maintenance method, in particular to an intelligent substation automatic operation and maintenance system and method based on a grey theory.
Background
At present, the operation, maintenance and overhaul work of an automation system and equipment of an intelligent substation is mainly field operation; when the transformer substation has the characteristics of large regional span, wide distribution of operation and maintenance points, multiple types of monitoring system equipment, complex equipment operation and the like, the traditional field operation mode needs to come and go to the transformer substation field, the consumed time is too long, and the effective working time is short, so that the operation and maintenance of the transformer substation are not facilitated.
In recent years, the development of a telephone network is rapid, the scale and the number of transformer substations are increased, the specialization and intensification degree of the conventional transformer substation is relatively lagged, and meanwhile, the resource allocation efficiency is low and the management chain is long. Compared with a conventional transformer substation, the intelligent transformer substation realizes the functions of monitoring operation, operation control, intelligent alarm and the like under the conditions of information digitization, platform networking and information intercommunication and the like. Although the communication protocol standardization of the automation equipment is realized, a maintenance interface, monitoring background configuration, operation and control, comprehensive information analysis and the like designed by a manufacturer are not standardized, and the centralized operation and maintenance management and the standardized construction of the transformer substation are not facilitated; when a fault occurs, a large amount of related information can appear at the same time, fault points are difficult to quickly locate, the analysis means is single, the on-site customs control of experienced personnel is needed, the processing process also needs omnibearing anti-error guarantee, the accident range is prevented from being enlarged, a large amount of technical personnel are required to be invested, and the precision and the efficiency of active early warning are low.
Therefore, in order to solve the above technical problems, it is necessary to provide a new technical means.
Disclosure of Invention
In view of this, the present invention provides an automatic operation and maintenance system for an intelligent substation based on a gray theory and a method thereof, which can implement intelligent inspection, active early warning and mobile operation functions for the substation, effectively improve the early warning efficiency and precision of the system, further increase the flexibility and safety of the system, and further improve the automation degree of operation and maintenance of the system.
The invention provides an intelligent substation automatic operation and maintenance system based on a grey theory, which comprises a data acquisition device, an operation and maintenance relay unit, an inspection monitoring unit, an operation and maintenance master station unit and an intelligent mobile terminal, wherein the data acquisition device is used for acquiring a data of an intelligent substation;
the data acquisition device is used for acquiring and outputting the operation data of the secondary equipment;
the operation and maintenance relay unit is in communication connection with the data acquisition device, receives the operation data output by the data acquisition device and transmits the operation data to the operation and maintenance monitoring unit;
the operation and maintenance master station unit is in communication connection with the operation and maintenance relay unit and is used for acquiring the data of the power distribution equipment and outputting the data to the operation and maintenance monitoring unit;
the operation and maintenance monitoring unit is used for receiving the data output by the operation and maintenance master station unit and the data acquisition device, processing and analyzing the data by adopting a grey system theory and analyzing the faults of the monitored equipment;
and the intelligent mobile terminal is in communication connection with the operation and maintenance monitoring unit and is used for receiving the fault analysis result.
Further, the data acquisition device is in communication connection with the operation and maintenance relay unit through a forward and reverse isolation device.
Furthermore, the operation and maintenance master station unit comprises a master station server, indoor monitoring equipment and outdoor monitoring equipment;
the indoor monitoring equipment is used for monitoring operation data of indoor equipment of the transformer substation, the outdoor monitoring equipment is used for monitoring primary equipment outside the transformer substation, and the indoor monitoring equipment is in communication connection with the outdoor monitoring equipment and the master station server.
The invention also provides an intelligent substation automatic operation and maintenance method based on the gray theory, which is suitable for the system and comprises the following steps:
s1, preprocessing operation data of a transformer substation to form an initial data column M 0 ：
M 0 ＝(M 0 (1) M 0 (2) … M 0 (n))；
Wherein M is 0 (m) ≥ 0, m =1,2,3,. Eta, n, n represents the number of sample data;
s2, generating a gray number sequence M by adopting an accumulation generation method 1 ：
M 1 ＝(M 1 (1) M 1 (2) … M 1 (n))
Wherein the content of the first and second substances,
Figure BDA0003663549820000031
s3, generating a weighted adjacent value sequence:
Z 1 ＝(Z 1 (2) Z 1 (3) … Z 1 (n))
wherein Z is 1 (m)＝αM 1 (m)+αM 1 (m-1), m =2,3,.. N, α denotes a generation coefficient;
s4, establishing a gray GM (1, 1) model
M 0 (m)+θZ 1 (m)＝δ
The whitening differential equation is:
Figure BDA0003663549820000032
s5, solving coefficients of an equation:
is provided with
Figure BDA0003663549820000033
To estimate the coefficient vector, Y = (M) 0 (2) M 0 (3) … M 0 (n)) T ，
Figure BDA0003663549820000034
Figure BDA0003663549820000035
S6, determining a predicted value:
Figure BDA0003663549820000036
wherein:
Figure BDA0003663549820000037
and comparing the predicted value with a set threshold, and if the predicted value is greater than the set threshold, judging the equipment fault corresponding to the predicted value.
Further, the method also comprises a predicted value checking step:
Figure BDA0003663549820000041
and omega (m) represents relative residual error, and if the omega (m) | <0.1, the prediction index data of the operating equipment is accurate and can be used for fault analysis.
The invention has the beneficial effects that: by the aid of the method, intelligent inspection, active early warning and mobile operation functions of the transformer substation can be realized, early warning efficiency and accuracy of the system are effectively improved, flexibility and safety of the system are further improved, and operation and maintenance automation degree of the system is further improved.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is further described in detail below:
the invention provides an intelligent substation automatic operation and maintenance system based on a grey theory, which comprises a data acquisition device, an operation and maintenance relay unit, an inspection monitoring unit, an operation and maintenance master station unit and an intelligent mobile terminal, wherein the data acquisition device is used for acquiring a data of an intelligent substation;
the data acquisition device is used for acquiring and outputting the operation data of the secondary equipment;
the operation and maintenance relay unit is in communication connection with the data acquisition device, receives the operation data output by the data acquisition device and transmits the operation data to the operation and maintenance monitoring unit; the operation and maintenance relay unit adopts the existing equipment; the operation and maintenance monitoring unit is used for encrypting and packaging the data and transmitting the data to the operation and maintenance monitoring unit;
the operation and maintenance master station unit is in communication connection with the operation and maintenance relay unit and is used for acquiring the data of the power distribution equipment and outputting the data to the operation and maintenance monitoring unit;
the operation and maintenance monitoring unit is used for receiving the data output by the operation and maintenance master station unit and the data acquisition device, processing and analyzing the data by adopting a grey system theory and analyzing the faults of the monitored equipment; the operation and maintenance monitoring unit adopts the existing equipment; for example, the monitoring server is used for analyzing and processing data and outputting early warning information, and the storage server is used for storing process data, so that subsequent tracing and the like are facilitated;
the intelligent mobile terminal is in communication connection with the operation and maintenance monitoring unit and used for receiving the fault analysis result, and the intelligent mobile terminal is held by operation and maintenance workers, can know the fault analysis borrowing result and is beneficial to timely operation and maintenance processing; through the system, the intelligent inspection, active early warning and mobile operation functions of the transformer substation can be realized, the early warning efficiency and precision of the system are effectively improved, further, the flexibility and safety of the system are improved, and the operation and maintenance automation degree of the system is further improved.
In this embodiment, the data acquisition device is in communication connection with the operation and maintenance relay unit through the forward and reverse isolation device, wherein the forward and reverse isolation device is in the prior art, and by means of the structure, the data transmission safety can be ensured.
In this embodiment, the operation and maintenance master station unit includes a master station server, an indoor monitoring device, and an outdoor monitoring device;
the master station server is in communication connection with the operation and maintenance relay unit, the indoor monitoring equipment is used for monitoring operation data of indoor equipment of the transformer substation, and the indoor equipment of the transformer substation comprises equipment such as a screen cabinet, an air conditioner and the like; the outdoor monitoring equipment is used for monitoring primary equipment outside the transformer substation, and the indoor monitoring equipment is in communication connection with the outdoor monitoring equipment and the master station server.
The invention also provides an intelligent substation automatic operation and maintenance method based on the gray theory, which is suitable for the system and comprises the following steps:
s1, preprocessing operation data of a transformer substation to form an initial data column M 0 ：
M 0 ＝(M 0 (1) M 0 (2) … M 0 (n))；
Wherein, M 0 (m) ≥ 0, m =1,2,3,. Eta, n, n represents the number of sample data;
s2, generating a gray number sequence M by adopting an accumulation generation method 1 ：
M 1 ＝(M 1 (1) M 1 (2) … M 1 (n))
Wherein the content of the first and second substances,
Figure BDA0003663549820000051
s3, generating a weighted adjacent value sequence:
Z 1 ＝(Z 1 (2) Z 1 (3) … Z 1 (n))
wherein Z is 1 (m)＝αM 1 (m)+αM 1 (m-1), m =2,3,.. N, α denotes a generation coefficient;
s4, establishing a gray GM (1, 1) model
M 0 (m)+θZ 1 (m)＝δ
The whitening differential equation is:
Figure BDA0003663549820000061
s5, solving coefficients of an equation:
is provided with
Figure BDA0003663549820000062
To estimate the coefficient vector, Y = (M) 0 (2) M 0 (3) … M 0 (n)) T ，
Figure BDA0003663549820000063
Figure BDA0003663549820000064
S6, determining a predicted value:
Figure BDA0003663549820000065
wherein:
Figure BDA0003663549820000066
and comparing the predicted value with a set threshold value, and if the predicted value is greater than the set threshold value, judging the equipment fault corresponding to the predicted value.
The method also comprises a predicted value checking step:
Figure BDA0003663549820000067
and omega (m) represents relative residual errors, and if the | omega (m) | <0.1, the prediction index data of the operating equipment is accurate and can be used for fault analysis.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (5)

1. The utility model provides an automatic operation and maintenance system of intelligent substation based on grey theory which characterized in that: the intelligent mobile terminal comprises a data acquisition device, an operation and maintenance relay unit, an inspection monitoring unit, an operation and maintenance master station unit and an intelligent mobile terminal;
the data acquisition device is used for acquiring and outputting the operation data of the secondary equipment;
the operation and maintenance relay unit is in communication connection with the data acquisition device, receives the operation data output by the data acquisition device and transmits the operation data to the operation and maintenance monitoring unit;
the operation and maintenance master station unit is in communication connection with the operation and maintenance relay unit and is used for acquiring the data of the power distribution equipment and outputting the data to the operation and maintenance monitoring unit;
the operation and maintenance monitoring unit is used for receiving the data output by the operation and maintenance master station unit and the data acquisition device, processing and analyzing the data by adopting a grey system theory and analyzing the faults of the monitored equipment;
and the intelligent mobile terminal is in communication connection with the operation and maintenance monitoring unit and is used for receiving the fault analysis result.
2. The grey theory-based intelligent substation automatic operation and maintenance system according to claim 1, characterized in that: and the data acquisition device is in communication connection with the operation and maintenance relay unit through a forward and reverse isolation device.
3. The intelligent substation automatic operation and maintenance system based on the grey theory according to claim 1, characterized in that: the operation and maintenance master station unit comprises a master station server, indoor monitoring equipment and outdoor monitoring equipment;
the intelligent substation indoor monitoring system comprises a master station server, an operation and maintenance relay unit, indoor monitoring equipment, outdoor monitoring equipment, an outdoor monitoring equipment and a master station server, wherein the master station server is in communication connection with the operation and maintenance relay unit, the indoor monitoring equipment is used for monitoring operation data of the indoor equipment of the substation, the outdoor monitoring equipment is used for monitoring primary equipment of the substation, and the indoor monitoring equipment is in communication connection with the outdoor monitoring equipment and the master station server.
4. An intelligent substation automatic operation and maintenance method based on gray theory and suitable for the system of any claim 1 to 3, characterized in that: the method comprises the following steps:
s1, preprocessing operation data of a transformer substation to form an initial data column M 0 ：
M 0 ＝(M 0 (1) M 0 (2)…M 0 (n))；
Wherein M is 0 (m) is not less than 0, m =1,2,3,. And n represents the number of sample data;
s2, generating a gray number sequence M by adopting an accumulation generation method 1 ：
M 1 ＝(M 1 (1) M 1 (2)…M 1 (n))
Wherein, the first and the second end of the pipe are connected with each other,
Figure FDA0003663549810000021
s3, generating a weighted adjacent value sequence:
Z 1 ＝(Z 1 (2) Z 1 (3)…Z 1 (n))
wherein Z is 1 (m)＝αM 1 (m)+αM 1 (m-1), m =2,3,. Ang., n, α represents a generation coefficient;
s4, establishing a gray GM (1, 1) model
M 0 (m)+θZ 1 (m)＝δ
The whitening differential equation is:
Figure FDA0003663549810000022
s5, solving coefficients of an equation:
is provided with
Figure FDA0003663549810000023
To estimate the coefficient vector, Y = (M) 0 (2) M 0 (3)…M 0 (n)) T ，
Figure FDA0003663549810000024
Figure FDA0003663549810000025
S6, determining a predicted value:
Figure FDA0003663549810000026
wherein:
Figure FDA0003663549810000027
and comparing the predicted value with a set threshold value, and if the predicted value is greater than the set threshold value, judging the equipment fault corresponding to the predicted value.
5. The intelligent substation automatic operation and maintenance method based on the grey theory according to claim 4, characterized in that: the method also comprises a predicted value checking step:
Figure FDA0003663549810000031
and omega (m) represents relative residual errors, and if the | omega (m) | <0.1, the prediction index data of the operating equipment is accurate and can be used for fault analysis.
CN202210580420.6A 2022-05-26 2022-05-26 Automatic operation and maintenance system and method for intelligent substation based on grey theory Pending CN115313621A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117613908A (en) * 2024-01-24 2024-02-27 北京智芯微电子科技有限公司 Intelligent operation and maintenance method and system based on power distribution network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117613908A (en) * 2024-01-24 2024-02-27 北京智芯微电子科技有限公司 Intelligent operation and maintenance method and system based on power distribution network
CN117613908B (en) * 2024-01-24 2024-05-10 北京智芯微电子科技有限公司 Intelligent operation and maintenance method and system based on power distribution network

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