CN110866216A - Intelligent management method and system for overhaul of transformer substation equipment - Google Patents

Intelligent management method and system for overhaul of transformer substation equipment Download PDF

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CN110866216A
CN110866216A CN201911006200.7A CN201911006200A CN110866216A CN 110866216 A CN110866216 A CN 110866216A CN 201911006200 A CN201911006200 A CN 201911006200A CN 110866216 A CN110866216 A CN 110866216A
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耿永明
魏淼
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Shaanxi Local Power Group Co Ltd
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Abstract

The invention provides a transformer substation equipment maintenance intelligent management method and system. The intelligent management method for the overhaul of the transformer substation equipment comprises the following steps: step S1, recording the ledger information of the substation equipment in the server; the ledger information comprises specific parameters of the substation equipment, equipment maintenance conditions, spare part conditions and problems left after maintenance; step S2, determining the overhaul time limit of the transformer substation according to the ledger information and by combining a preset detection standard library, calculating the risk evaluation value of the transformer substation equipment reaching the overhaul time limit, and giving early warning information if the risk evaluation value of the transformer substation equipment is within the risk warning range; and step S3, determining the maintenance scheme of the transformer substation reaching the maintenance time limit according to the early warning information and by combining a preset maintenance scheme library. The intelligent management method and the intelligent management system for the overhaul of the transformer substation equipment are ingenious in design and high in practicability.

Description

Intelligent management method and system for overhaul of transformer substation equipment
Technical Field
The invention relates to the technical field of overhaul management, in particular to an intelligent management method and system for overhaul of substation equipment.
Background
The intelligent management of the overhaul of the substation equipment is an important link of the overall process management of the power grid overhaul project, is the basis and guarantee of project quality and cost control, and can directly influence the economic benefit of power construction enterprises. At present, because the intelligent management information data volume of transformer substation equipment maintenance is big, the source channel is many, the change is frequent, there are transformer substation equipment maintenance intelligent management data statistical analysis difficulty, update lag, there are conflicts scheduling problem between the management project, are difficult to the condition such as whole electric wire netting maintenance project progress, cost of high-efficient, reasonable management and control.
Meanwhile, in a power grid system, working environments such as voltage grades, load ratios, actual voltage-to-reference voltage ratios and the like of different transformer substations are different, and if the transformer substations are overhauled in the same overhaul time limit, the problem of overhauling exists, and waste of manpower and financial resources is caused.
Disclosure of Invention
Aiming at the technical problems, the invention provides an intelligent management method and system for overhaul of substation equipment.
The invention provides the following technical scheme: an intelligent management method for overhaul of substation equipment comprises the following steps:
step S1, recording the ledger information of the substation equipment; the ledger information comprises specific parameters of the substation equipment, equipment maintenance conditions, spare part conditions and problems left after maintenance;
step S2, determining the overhaul time limit of the substation equipment according to the ledger information and by combining a preset detection standard library, calculating the risk evaluation value of the substation equipment reaching the overhaul time limit, and giving early warning information if the risk evaluation value of the equipment is within the risk warning range;
and step S3, determining the maintenance scheme of the transformer substation reaching the maintenance time limit according to the early warning information and by combining a preset maintenance scheme library.
In the intelligent management method for overhaul of the substation equipment, the risk evaluation value of the substation equipment is calculated by the following formula:
Figure BDA0002242854800000021
Figure BDA0002242854800000022
wherein R represents an equipment risk assessment of the substation; p represents the fault probability of the substation equipment; siRepresenting the severity of various types of fault loss of the substation equipment, S1Is the severity of the loss of assets of the substation equipment, S2Severity of system losses for the substation; w is aiRepresenting a fault loss type weight of the substation; w is a2jRepresenting a system operation loss type weight of the substation; s21Indicating the out-of-limit severity of the power flow of the substation, S22Indicating the out-of-limit severity of the voltage, S, of the substation23Indicating the severity of the loss of load of the substation;
the equipment fault probability P of the transformer substation is obtained by inquiring the preset fault probability of the transformer substation of the same type and the working year corresponding table thereof according to the working year of the transformer substation;
severity of asset loss S of substation1According to the voltage grade of the transformer substation, looking up the preset asset loss severity of the transformer substation of the same type and a voltage grade corresponding table to obtain the asset loss severity;
out-of-limit severity of tidal current S of transformer substation21According to the load ratio of the transformer substation, looking up the preset load ratio mapping table of the transformer substations of the same type to obtain the load ratio; out-of-limit voltage severity S of transformer substation22According to the ratio of the actual voltage of the transformer substation to the reference voltage, looking up the voltage out-of-limit severity of the transformer substation of the same kind and a corresponding table of the ratio of the actual voltage to the reference voltage to obtain the severity;
severity of loss of load S of transformer substation23And according to the ratio of the loss load amount and the total load amount of the transformer substation, looking up the loss load severity of the transformer substations of the same type and a corresponding table of the ratio of the loss load amount and the total load amount to obtain the loss load severity.
In the above described intelligent management method for overhaul of substation equipment, the detection standard library includes a correspondence between the ledger information of the substation and the overhaul time limit, or a correspondence between the evaluation operating state obtained by evaluating the ledger information of the substation according to a preset evaluation scheme and the overhaul time limit.
In the intelligent management method for the overhaul of the transformer substation equipment, the early warning information comprises to-be-overhauled items of the transformer substation reaching the overhaul time limit;
the overhaul plan library comprises the corresponding relation between the project to be overhauled and the overhaul plan;
when there are a plurality of items to be overhauled of the substation reaching the overhaul time limit, step S3 further includes:
step S31, arranging the overhaul sequence of a plurality of items to be overhauled according to the preset overhaul priority level of the transformer substation item, and accordingly determining the initial overhaul sequence;
and step S32, adjusting the overhaul sequence of the plurality of to-be-overhauled projects according to whether conflicts exist among the overhaul schemes corresponding to the plurality of to-be-overhauled projects, so as to determine the adjusted overhaul sequence.
In the foregoing intelligent management method for overhaul of substation equipment, step S32 further includes:
acquiring the items to be overhauled one by one according to the initial overhauling sequence, and determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one;
the step of determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one comprises the following steps:
listing the items to be overhauled acquired for the first time into the first position of the adjusted overhauling sequence;
judging whether the acquired items to be overhauled conflict with the items to be overhauled acquired at the previous time from the second time, if not, arranging the acquired items to be overhauled one bit behind the previous acquired items to be overhauled in the sequence of the adjusted overhauling sequence adjusted at the previous time;
if yes, judging whether conflicts exist between the acquired items to be overhauled and the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment one by one according to the adjusted overhaul sequence of the previous adjustment until the situations that the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment and the acquired items to be overhauled do not exist, and then inserting the acquired items to be overhauled into the next position of the items to be overhauled, which is judged as not conflicting, in the order of the adjusted overhaul sequence of the previous adjustment; and if the acquired items to be overhauled are in conflict with the items to be overhauled listed in the adjusted overhauling sequence of the previous time, arranging the acquired items to be overhauled one position behind the items to be overhauled acquired at the previous time in the sequence of the adjusted overhauling sequence of the previous time.
The invention also provides an intelligent management system for the overhaul of the transformer substation equipment, which comprises the following components:
the standing book recording module (100) is used for recording standing book information of the transformer substation; the ledger information comprises specific parameters of the transformer substation, equipment maintenance conditions, spare part conditions and problems left after maintenance;
the maintenance early warning module (200) is used for determining the maintenance time limit of the transformer substation according to the ledger information and by combining a preset detection standard library, calculating the equipment risk estimated value of the transformer substation reaching the maintenance time limit, and giving early warning information if the equipment risk estimated value is within a risk warning range;
and the maintenance scheme determining module (300) is used for determining the maintenance scheme of the transformer substation reaching the maintenance time limit according to the early warning information and by combining a preset maintenance scheme library.
In the above-mentioned intelligent management system for overhaul of substation equipment, the overhaul warning module is further configured to calculate an equipment risk estimation value of the substation according to the following formula,
Figure BDA0002242854800000041
Figure BDA0002242854800000042
wherein R represents an equipment risk assessment of the substation; p represents the equipment failure probability of the transformer substation; siIndicating the severity of the fault loss of the substation, S1Is the severity of asset loss, S, of the substation2Severity of system losses for the substation; w is aiRepresenting a fault loss type weight of the substation; w is a2jRepresenting a system operation loss type weight of the substation; s21Indicating the out-of-limit severity of the power flow of the substation, S22Indicating the out-of-limit severity of the voltage, S, of the substation23Indicating the severity of the loss of load of the substation;
the equipment fault probability P of the transformer substation is obtained by inquiring the preset fault probability of the transformer substation of the same type and the working year corresponding table thereof according to the working year of the transformer substation;
severity of asset loss S of substation1According to the voltage grade of the transformer substation, looking up the preset asset loss severity of the transformer substation of the same type and a voltage grade corresponding table to obtain the asset loss severity;
out-of-limit severity of tidal current S of transformer substation21According to the load ratio of the transformer substation, looking up the preset load ratio mapping table of the transformer substations of the same type to obtain the load ratio; out-of-limit voltage severity S of transformer substation22According to the ratio of the actual voltage of the transformer substation to the reference voltage, looking up the voltage out-of-limit severity of the transformer substation of the same kind and a corresponding table of the ratio of the actual voltage to the reference voltage to obtain the severity;
severity of loss of load S of transformer substation23And according to the ratio of the loss load amount and the total load amount of the transformer substation, looking up the loss load severity of the transformer substations of the same type and a corresponding table of the ratio of the loss load amount and the total load amount to obtain the loss load severity.
In the above described intelligent management system for overhaul of substation equipment, the detection standard library includes a correspondence between the ledger information of the substation and the overhaul time limit, or a correspondence between the evaluation operating state obtained by evaluating the ledger information of the substation according to a preset evaluation scheme and the overhaul time limit.
In the intelligent management system for overhauling the substation equipment, the early warning information comprises the items to be overhauled of the substation when the overhauling time limit is reached;
the overhaul plan library comprises the corresponding relation between the project to be overhauled and the overhaul plan;
when a plurality of to-be-overhauled projects of the transformer substation reach the overhaul time limit, the overhaul scheme determining module (300) is further used for arranging overhaul sequences of the plurality of to-be-overhauled projects according to preset transformer substation project overhaul priority levels so as to determine an initial overhaul sequence; and adjusting the maintenance sequence of the plurality of items to be maintained according to whether conflicts exist among the maintenance schemes corresponding to the plurality of items to be maintained, so that the adjusted maintenance sequence is determined.
In the transformer substation equipment overhaul intelligent management system, the overhaul scheme determining module (300) is further used for acquiring items to be overhauled one by one according to an initial overhaul sequence and determining the sequence of the acquired items to be overhauled in the post-adjustment overhaul sequence one by one;
the step of determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one comprises the following steps:
listing the items to be overhauled acquired for the first time into the first position of the adjusted overhauling sequence;
judging whether the acquired items to be overhauled conflict with the items to be overhauled acquired at the previous time from the second time, if not, arranging the acquired items to be overhauled one bit behind the previous acquired items to be overhauled in the sequence of the adjusted overhauling sequence adjusted at the previous time;
if yes, judging whether conflicts exist between the acquired items to be overhauled and the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment one by one according to the adjusted overhaul sequence of the previous adjustment until the situations that the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment and the acquired items to be overhauled do not exist, and then inserting the acquired items to be overhauled into the next position of the items to be overhauled, which is judged as not conflicting, in the order of the adjusted overhaul sequence of the previous adjustment; and if the acquired items to be overhauled are in conflict with the items to be overhauled listed in the adjusted overhauling sequence of the previous time, arranging the acquired items to be overhauled one position behind the items to be overhauled acquired at the previous time in the sequence of the adjusted overhauling sequence of the previous time.
The invention constructs the intelligent management method and system for the overhaul of the transformer substation equipment, and analyzes the ledger information of the transformer substation according to the preset detection standard library and the preset overhaul plan library, thereby reasonably determining the corresponding overhaul time limit and overhaul scheme. And the problem of overhauling the transformer is avoided by calculating the risk estimation value of the equipment. The intelligent management method and the intelligent management system for the overhaul of the transformer substation equipment are ingenious in design and high in practicability.
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The invention is further described below with reference to the accompanying drawings:
fig. 1 shows a functional module schematic diagram of a substation equipment overhaul intelligent management system according to a preferred embodiment of the present invention.
Detailed Description
The technical problem to be solved by the invention is as follows: due to the fact that the transformer substation equipment overhaul intelligent management information data volume is large, sources and channels are multiple, changes are frequent, the problems that the transformer substation equipment overhaul intelligent management data are difficult to analyze and update, conflicts exist among management projects and the like exist, and the conditions that the progress and the cost of the whole power grid overhaul project are difficult to manage and control efficiently and reasonably are solved. The invention proposes the idea about the technical problem that: the transformer substation equipment maintenance intelligent management method and system are constructed, and the ledger information of the transformer substation is analyzed according to a preset detection standard library and a preset maintenance plan library, so that corresponding maintenance time limit and maintenance plans are reasonably determined. Meanwhile, the problem of overhauls of the transformer is avoided by calculating the risk estimation value of the equipment.
In order to make the technical solutions, technical objects, and technical effects of the present invention clearer so as to enable those skilled in the art to understand and implement the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The invention provides an intelligent management method for overhaul of transformer substation equipment, which comprises the following steps:
step S1, recording the ledger information of the transformer substation; the ledger information comprises specific parameters of the transformer substation, equipment maintenance conditions, spare part conditions and problems left after maintenance;
step S2, determining the overhaul time limit of the transformer substation according to the machine account information and by combining a preset detection standard library, calculating the equipment risk estimated value of the transformer substation reaching the overhaul time limit, and giving early warning information if the equipment risk estimated value is within the risk warning range;
in this step, the detection standard library includes a corresponding relationship between the ledger information of the substation and the overhaul time limit, or a corresponding relationship between the evaluation operating state obtained by evaluating the ledger information of the substation according to a preset evaluation scheme and the overhaul time limit.
Under a normal condition, when the detection standard library comprises the corresponding relation between the ledger information of the transformer substation and the overhaul time limit, the longer the service life of the transformer substation is, the shorter the overhaul time limit is; the more times of overhaul of the transformer substation, the shorter the overhaul time limit; the fewer spare parts of the transformer substation, the shorter the overhaul time limit; the larger the remaining problem after the transformer substation is overhauled, the shorter the overhaul time limit is;
when the detection standard library comprises a corresponding relation between an evaluation operation state and a maintenance time limit, wherein the evaluation operation state is obtained by evaluating the ledger information of the transformer substation according to a preset evaluation scheme, the better the evaluation operation state is, and the longer the maintenance time limit is; the worse the estimated operating conditions, the shorter the overhaul time limit.
Here, the equipment risk assessment of the substation is calculated by the following formula:
Figure BDA0002242854800000071
Figure BDA0002242854800000072
wherein R represents an equipment risk assessment of the substation; p represents the equipment failure probability of the transformer substation; siIndicating the severity of the fault loss of the substation, S1Is the severity of asset loss, S, of the substation2Severity of system losses for the substation; w is aiRepresenting the weight of the fault loss type of the substation, typically w1＝0.4，w2＝0.6；w2jWeight representing the type of system operating losses of a substation, generally w21＝0.25，w22＝0.25，w23＝0.5；S21Indicating the out-of-limit severity of the power flow of the substation, S22Indicating voltage out-of-limit of a substationSeverity, S23Indicating the severity of the loss of load of the substation;
the equipment fault probability P of the transformer substation is obtained by inquiring the preset fault probability of the transformer substation of the same type and the working year corresponding table thereof according to the working year of the transformer substation;
severity of asset loss S of substation1According to the voltage grade of the transformer substation, looking up the preset asset loss severity of the transformer substation of the same type and a voltage grade corresponding table to obtain the asset loss severity;
out-of-limit severity of tidal current S of transformer substation21According to the load ratio of the transformer substation, looking up the preset load ratio mapping table of the transformer substations of the same type to obtain the load ratio; out-of-limit voltage severity S of transformer substation22According to the ratio of the actual voltage of the transformer substation to the reference voltage, looking up the voltage out-of-limit severity of the transformer substation of the same kind and a corresponding table of the ratio of the actual voltage to the reference voltage to obtain the severity;
severity of loss of load S of transformer substation23And according to the ratio of the loss load amount and the total load amount of the transformer substation, looking up the loss load severity of the transformer substations of the same type and a corresponding table of the ratio of the loss load amount and the total load amount to obtain the loss load severity.
Further, when the equipment risk evaluation value of the transformer substation is not within the risk warning range, the overhaul time limit of the transformer substation is recalculated.
And step S3, determining the maintenance scheme of the transformer substation reaching the maintenance time limit according to the early warning information and by combining a preset maintenance scheme library. Here, the service plan includes after-the-fact service, preventive planned service, condition service, and reliability service.
In the step, the early warning information comprises the items to be overhauled of the transformer substation reaching the overhaul time limit;
and the overhaul plan library comprises the corresponding relation between the project to be overhauled and the overhaul plan.
Further, when there are a plurality of items to be overhauled of the substation reaching the overhaul time limit, the step S3 further includes:
step S31, arranging the overhaul sequence of a plurality of items to be overhauled according to the preset overhaul priority level of the transformer substation item, and accordingly determining the initial overhaul sequence;
and step S32, adjusting the overhaul sequence of the plurality of to-be-overhauled projects according to whether conflicts exist among the overhaul schemes corresponding to the plurality of to-be-overhauled projects, so as to determine the adjusted overhaul sequence.
Step S32 further includes:
acquiring the items to be overhauled one by one according to the initial overhauling sequence, and determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one;
the step of determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one comprises the following steps:
listing the items to be overhauled acquired for the first time into the first position of the adjusted overhauling sequence;
judging whether the acquired items to be overhauled conflict with the items to be overhauled acquired at the previous time from the second time, if not, arranging the acquired items to be overhauled one bit behind the previous acquired items to be overhauled in the sequence of the adjusted overhauling sequence adjusted at the previous time;
if yes, judging whether conflicts exist between the acquired items to be overhauled and the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment one by one according to the adjusted overhaul sequence of the previous adjustment until the situations that the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment and the acquired items to be overhauled do not exist, and then inserting the acquired items to be overhauled into the next position of the items to be overhauled, which is judged as not conflicting, in the order of the adjusted overhaul sequence of the previous adjustment; and if the acquired items to be overhauled are in conflict with the items to be overhauled listed in the adjusted overhauling sequence of the previous time, arranging the acquired items to be overhauled one position behind the items to be overhauled acquired at the previous time in the sequence of the adjusted overhauling sequence of the previous time.
Here, the adjusted maintenance sequence can be determined through the scheme, and the substation maintenance personnel can finish maintenance work most efficiently according to the determined adjusted maintenance sequence. Meanwhile, the method for determining the post-debugging maintenance sequence is high in efficiency and small in occupied computing resource.
As shown in fig. 1, fig. 1 is a functional module schematic diagram of a substation equipment overhaul intelligent management system according to a preferred embodiment of the present invention. Specifically, this transformer substation equipment overhauls intelligent management system includes:
the standing book recording module 100 is used for recording standing book information of the transformer substation; the ledger information comprises specific parameters of the transformer substation, equipment maintenance conditions, spare part conditions and problems left after maintenance;
the overhaul early warning module 200 is used for determining the overhaul time limit of the transformer substation according to the ledger information and by combining a preset detection standard library, calculating the equipment risk estimated value of the transformer substation reaching the overhaul time limit, and giving early warning information if the equipment risk estimated value is within a risk warning range;
here, the detection standard library includes a correspondence between the ledger information of the substation and the maintenance time limit, or a correspondence between an evaluation operating state obtained by evaluating the ledger information of the substation according to a preset evaluation scheme and the maintenance time limit.
Under a normal condition, when the detection standard library comprises the corresponding relation between the ledger information of the transformer substation and the overhaul time limit, the longer the service life of the transformer substation is, the shorter the overhaul time limit is; the more times of overhaul of the transformer substation, the shorter the overhaul time limit; the fewer spare parts of the transformer substation, the shorter the overhaul time limit; the larger the remaining problem after the transformer substation is overhauled, the shorter the overhaul time limit is;
when the detection standard library comprises a corresponding relation between an evaluation operation state and a maintenance time limit, wherein the evaluation operation state is obtained by evaluating the ledger information of the transformer substation according to a preset evaluation scheme, the better the evaluation operation state is, and the longer the maintenance time limit is; the worse the estimated operating conditions, the shorter the overhaul time limit.
Further, the overhaul warning module 200 is also used for calculating the equipment risk estimation value of the substation through the following formula,
Figure BDA0002242854800000091
Figure BDA0002242854800000092
wherein R represents an equipment risk assessment of the substation; p represents the equipment failure probability of the transformer substation; siIndicating the severity of the fault loss of the substation, S1Is the severity of asset loss, S, of the substation2Severity of system losses for the substation; w is aiWeight, w, representing the fault loss type of the substation1＝0.4，w2＝0.6；w2jWeight, w, representing the type of system operating losses of a substation21＝0.25，w22＝0.25，w23＝0.5；S21Indicating the out-of-limit severity of the power flow of the substation, S22Indicating the out-of-limit severity of the voltage, S, of the substation23Indicating the severity of the loss of load of the substation;
the equipment fault probability P of the transformer substation is obtained by inquiring the preset fault probability of the transformer substation of the same type and the working year corresponding table thereof according to the working year of the transformer substation;
severity of asset loss S of substation1According to the voltage grade of the transformer substation, looking up the preset asset loss severity of the transformer substation of the same type and a voltage grade corresponding table to obtain the asset loss severity;
out-of-limit severity of tidal current S of transformer substation21According to the load ratio of the transformer substation, looking up the preset load ratio mapping table of the transformer substations of the same type to obtain the load ratio; out-of-limit voltage severity S of transformer substation22According to the ratio of the actual voltage of the transformer substation to the reference voltage, looking up the voltage out-of-limit severity of the transformer substation of the same kind and a corresponding table of the ratio of the actual voltage to the reference voltage to obtain the severity;
severity of loss of load S of transformer substation23And according to the ratio of the loss load amount and the total load amount of the transformer substation, looking up the loss load severity of the transformer substations of the same type and a corresponding table of the ratio of the loss load amount and the total load amount to obtain the loss load severity.
Further, the overhaul early warning module 200 is further configured to recalculate the overhaul time limit of the substation when the equipment risk estimation value of the substation is not within the risk warning range.
And the overhaul scheme determining module 300 is used for determining the overhaul scheme of the transformer substation reaching the overhaul time limit according to the early warning information and by combining a preset overhaul scheme library. Here, the service plan includes after-the-fact service, preventive planned service, condition service, and reliability service.
In the step, the early warning information comprises the items to be overhauled of the transformer substation reaching the overhaul time limit;
and the overhaul plan library comprises the corresponding relation between the project to be overhauled and the overhaul plan.
Further, when there are multiple to-be-overhauled projects of the substation reaching the overhaul time limit, the overhaul scheme determination module 300 is further configured to arrange overhaul orders of the multiple to-be-overhauled projects according to a preset substation project overhaul priority level, so as to determine an initial overhaul order; and adjusting the maintenance sequence of the plurality of items to be maintained according to whether conflicts exist among the maintenance schemes corresponding to the plurality of items to be maintained, so that the adjusted maintenance sequence is determined.
Specifically, the overhaul scheme determining module 300 is further configured to obtain items to be overhauled one by one according to the initial overhaul order and determine an order of the obtained items to be overhauled in the adjusted overhaul order one by one;
the step of determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one comprises the following steps:
listing the items to be overhauled acquired for the first time into the first position of the adjusted overhauling sequence;
judging whether the acquired items to be overhauled conflict with the items to be overhauled acquired at the previous time from the second time, if not, arranging the acquired items to be overhauled one bit behind the previous acquired items to be overhauled in the sequence of the adjusted overhauling sequence adjusted at the previous time;
if yes, judging whether conflicts exist between the acquired items to be overhauled and the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment one by one according to the adjusted overhaul sequence of the previous adjustment until the situations that the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment and the acquired items to be overhauled do not exist, and then inserting the acquired items to be overhauled into the next position of the items to be overhauled, which is judged as not conflicting, in the order of the adjusted overhaul sequence of the previous adjustment; and if the acquired items to be overhauled are in conflict with the items to be overhauled listed in the adjusted overhauling sequence of the previous time, arranging the acquired items to be overhauled one position behind the items to be overhauled acquired at the previous time in the sequence of the adjusted overhauling sequence of the previous time.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The intelligent management method for the overhaul of the transformer substation equipment is characterized by comprising the following steps:
step S1, recording the ledger information of the substation equipment; the ledger information comprises specific parameters of the substation equipment, equipment maintenance conditions, spare part conditions and problems left after maintenance;
step S2, determining the overhaul time limit of the transformer substation according to the machine account information and by combining a preset detection standard library, calculating the risk evaluation value of the transformer substation reaching the overhaul time limit, and giving early warning information if the risk evaluation value is within the risk warning range;
and step S3, determining the maintenance scheme of the transformer substation reaching the maintenance time limit according to the early warning information and by combining a preset maintenance scheme library.
2. The intelligent substation equipment overhaul management method according to claim 1, wherein the equipment risk assessment value of the substation is calculated by the following formula:
Figure FDA0002242854790000011
Figure FDA0002242854790000012
wherein R represents a substation equipment risk assessment value; p represents the fault probability of the substation equipment; siRepresenting the severity of various types of fault loss of the substation equipment, S1Is the severity of asset loss, S, of the substation2Severity of system loss for substation equipment; w is aiRepresenting a fault loss type weight of the substation; w is a2jRepresenting a system operation loss type weight of the substation; s21Indicating the out-of-limit severity of the power flow of the substation, S22Indicating the out-of-limit severity of the voltage, S, of the substation23Indicating the severity of the loss of load of the substation;
the fault probability P of the substation equipment is obtained by inquiring the preset fault probability of the same type of substation and a working year corresponding table thereof according to the working year of the substation;
severity of asset loss S of substation1According to the voltage grade of the transformer substation, looking up the preset asset loss severity of the transformer substation of the same type and a voltage grade corresponding table to obtain the asset loss severity;
out-of-limit severity of tidal current S of transformer substation21According to the load ratio of the transformer substation, looking up the preset load ratio mapping table of the transformer substations of the same type to obtain the load ratio; out-of-limit voltage severity S of transformer substation22According to the ratio of the actual voltage of the transformer substation to the reference voltage, looking up the voltage out-of-limit severity of the transformer substation of the same kind and a corresponding table of the ratio of the actual voltage to the reference voltage to obtain the severity;
severity of loss of load S of transformer substation23And according to the ratio of the loss load amount and the total load amount of the transformer substation, looking up the loss load severity of the transformer substations of the same type and a corresponding table of the ratio of the loss load amount and the total load amount to obtain the loss load severity.
3. The intelligent substation equipment overhaul management method according to claim 1, wherein the detection standard library comprises a correspondence between the ledger information of the substation and the overhaul time limit, or a correspondence between the evaluation running state obtained by evaluating the ledger information of the substation according to a preset evaluation scheme and the overhaul time limit.
4. The intelligent management method for overhaul of the substation equipment according to claim 1, wherein the early warning information comprises items to be overhauled of the substation reaching the overhaul time limit;
the overhaul plan library comprises the corresponding relation between the project to be overhauled and the overhaul plan;
when there are a plurality of items to be overhauled of the substation reaching the overhaul time limit, step S3 further includes:
step S31, arranging the overhaul sequence of a plurality of items to be overhauled according to the preset overhaul priority level of the transformer substation item, and accordingly determining the initial overhaul sequence;
and step S32, adjusting the overhaul sequence of the plurality of to-be-overhauled projects according to whether conflicts exist among the overhaul schemes corresponding to the plurality of to-be-overhauled projects, so as to determine the adjusted overhaul sequence.
5. The substation equipment overhaul intelligent management method of claim 4, wherein step S32 further comprises:
acquiring the items to be overhauled one by one according to the initial overhauling sequence, and determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one;
the step of determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one comprises the following steps:
listing the items to be overhauled acquired for the first time into the first position of the adjusted overhauling sequence;
judging whether the acquired items to be overhauled conflict with the items to be overhauled acquired at the previous time from the second time, if not, arranging the acquired items to be overhauled one bit behind the previous acquired items to be overhauled in the sequence of the adjusted overhauling sequence adjusted at the previous time;
if yes, judging whether conflicts exist between the acquired items to be overhauled and the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment one by one according to the adjusted overhaul sequence of the previous adjustment until the situations that the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment and the acquired items to be overhauled do not exist, and then inserting the acquired items to be overhauled into the next position of the items to be overhauled, which is judged as not conflicting, in the order of the adjusted overhaul sequence of the previous adjustment; and if the acquired items to be overhauled are in conflict with the items to be overhauled listed in the adjusted overhauling sequence of the previous time, arranging the acquired items to be overhauled one position behind the items to be overhauled acquired at the previous time in the sequence of the adjusted overhauling sequence of the previous time.
6. The utility model provides a transformer substation equipment overhauls intelligent management system which characterized in that includes:
the standing book recording module (100) is used for recording standing book information of the transformer substation; the ledger information comprises specific parameters of the substation equipment, equipment maintenance conditions, spare part conditions and problems left after maintenance;
the maintenance early warning module (200) is used for determining the maintenance time limit of the transformer substation according to the ledger information and by combining a preset detection standard library, calculating the equipment risk estimated value of the transformer substation reaching the maintenance time limit, and giving early warning information if the equipment risk estimated value is within a risk warning range;
and the maintenance scheme determining module (300) is used for determining the maintenance scheme of the transformer substation reaching the maintenance time limit according to the early warning information and by combining a preset maintenance scheme library.
7. The substation equipment overhaul intelligent management system of claim 6, wherein the overhaul warning module (200) is further configured to calculate an equipment risk estimate for the substation by the formula,
Figure FDA0002242854790000031
Figure FDA0002242854790000032
wherein R represents an equipment risk assessment of the substation; p represents the equipment failure probability of the transformer substation; siIndicating the severity of the fault loss of the substation, S1Is the severity of asset loss, S, of the substation2Severity of system losses for the substation; w is aiRepresenting a fault loss type weight of the substation; w is a2jRepresenting a system operation loss type weight of the substation; s21Indicating the out-of-limit severity of the power flow of the substation, S22Indicating the out-of-limit severity of the voltage, S, of the substation23Indicating the severity of the loss of load of the substation;
the equipment fault probability P of the transformer substation is obtained by inquiring the preset fault probability of the transformer substation of the same type and the working year corresponding table thereof according to the working year of the transformer substation;
severity of asset loss S of substation1According to the voltage grade of the transformer substation, looking up the preset asset loss severity of the transformer substation of the same type and a voltage grade corresponding table to obtain the asset loss severity;
out-of-limit severity of tidal current S of transformer substation21According to the load ratio of the transformer substation, looking up the preset load ratio mapping table of the transformer substations of the same type to obtain the load ratio; out-of-limit voltage severity S of transformer substation22According to the ratio of the actual voltage of the transformer substation to the reference voltage, looking up the voltage out-of-limit severity of the transformer substation of the same kind and a corresponding table of the ratio of the actual voltage to the reference voltage to obtain the severity;
severity of loss of load S of transformer substation23And according to the ratio of the loss load amount and the total load amount of the transformer substation, looking up the loss load severity of the transformer substations of the same type and a corresponding table of the ratio of the loss load amount and the total load amount to obtain the loss load severity.
8. The substation equipment overhaul intelligent management system of claim 6, wherein the detection standard library comprises a correspondence between the ledger information of the substation and the overhaul time limit, or a correspondence between the evaluation operating state obtained by evaluating the ledger information of the substation according to a preset evaluation scheme and the overhaul time limit.
9. The intelligent substation equipment overhaul management system according to claim 6, wherein the early warning information includes items to be overhauled of the substation reaching an overhaul time limit;
the overhaul plan library comprises the corresponding relation between the project to be overhauled and the overhaul plan;
when a plurality of to-be-overhauled projects of the transformer substation reach the overhaul time limit, the overhaul scheme determining module (300) is further used for arranging overhaul sequences of the plurality of to-be-overhauled projects according to preset transformer substation project overhaul priority levels so as to determine an initial overhaul sequence; and adjusting the maintenance sequence of the plurality of items to be maintained according to whether conflicts exist among the maintenance schemes corresponding to the plurality of items to be maintained, so that the adjusted maintenance sequence is determined.
10. The substation equipment overhaul intelligent management system according to claim 9, wherein the overhaul scheme determination module (300) is further configured to acquire items to be overhauled one by one according to an initial overhaul sequence and determine an order of the acquired items to be overhauled in the post-adjusted overhaul sequence one by one;
the step of determining the sequence of the acquired items to be overhauled in the adjusted overhauling sequence one by one comprises the following steps:
listing the items to be overhauled acquired for the first time into the first position of the adjusted overhauling sequence;
judging whether the acquired items to be overhauled conflict with the items to be overhauled acquired at the previous time from the second time, if not, arranging the acquired items to be overhauled one bit behind the previous acquired items to be overhauled in the sequence of the adjusted overhauling sequence adjusted at the previous time;
if yes, judging whether conflicts exist between the acquired items to be overhauled and the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment one by one according to the adjusted overhaul sequence of the previous adjustment until the situations that the items to be overhauled listed in the adjusted overhaul sequence of the previous adjustment and the acquired items to be overhauled do not exist, and then inserting the acquired items to be overhauled into the next position of the items to be overhauled, which is judged as not conflicting, in the order of the adjusted overhaul sequence of the previous adjustment; and if the acquired items to be overhauled are in conflict with the items to be overhauled listed in the adjusted overhauling sequence of the previous time, arranging the acquired items to be overhauled one position behind the items to be overhauled acquired at the previous time in the sequence of the adjusted overhauling sequence of the previous time.
CN201911006200.7A 2019-10-22 2019-10-22 Intelligent management method and system for overhaul of transformer substation equipment Pending CN110866216A (en)

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