CN107681786B - Secondary intelligent grading method for monitoring information alarm of transformer substation equipment - Google Patents
Secondary intelligent grading method for monitoring information alarm of transformer substation equipment Download PDFInfo
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 102
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- 230000002159 abnormal effect Effects 0.000 claims abstract description 66
- 238000006073 displacement reaction Methods 0.000 claims abstract description 57
- 230000009471 action Effects 0.000 claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims abstract description 16
- 230000007547 defect Effects 0.000 claims abstract description 14
- 230000001629 suppression Effects 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 9
- 230000005856 abnormality Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
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- 230000002829 reductive effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 230000011664 signaling Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 3
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- H02J13/0017—
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- H02J13/0075—
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- 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
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- 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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- 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
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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Abstract
The invention belongs to the technical field of transformer substation monitoring, and discloses a secondary intelligent grading method for transformer substation equipment monitoring information alarm, which is characterized in that when an accident, an abnormity, an out-of-limit condition, a displacement condition and a five-level monitoring information action or reset condition are met, the secondary grading is directly carried out to obtain an alarm level after any one of an alarm inhibition mark, an overhaul hanging plate mark and a defect mark is met; judging after the three conditions of the information non-alarm suppression mark, the overhaul hanging plate mark and the defect mark are all met: the monitoring information is originally an informing level, and if the action times in a period of time interval reach an abnormal standard, the information is upgraded to an abnormal level from an informing level by secondary grading; and so on. Compared with the fixed classification of the monitoring information, the secondary intelligent classification can avoid invalid information such as maintenance or defects from interfering the monitoring of a monitor on normally-operated equipment, can also prevent the occurrence of an event that the monitor alarms and misses the monitoring on important information, and achieves the effects of prominent key and clear hierarchy.
Description
Technical Field
The invention belongs to the technical field of transformer substation monitoring, and particularly relates to a secondary intelligent grading method for monitoring information alarm of transformer substation equipment.
Background
With the establishment of a 'large operation' system of a national power grid company, the transformer substation realizes an unattended operation management mode and a centralized monitoring operation mode. The monitoring information of the transformer substation is completely collected to the dispatching control center, the information analysis and processing workload of a monitor is large, the monitor cannot timely find or miss monitoring for important information alarm, and the safe and stable operation of the power grid is greatly influenced because the monitor sometimes happens to faults or abnormal misjudgment events caused by invalid information interference such as maintenance and the like.
The monitoring information alarm is an alarm article appearing on an alarm window after the dispatching control system processes the equipment monitoring information, is a main concerned object of monitoring operation, and is divided into the following monitoring information alarms according to the severity and urgency degree of influence on a power grid and equipment according to the transformer substation equipment monitoring information specification: accident, exception, out-of-limit, shift and notify five levels. The accident, abnormality, out-of-limit and displacement information is information which needs to be monitored by a monitor in real time and is immediately or timely processed, the informing information is general information reflecting the operation condition of the power grid equipment, the information processing is processed by an operation and maintenance unit, and the monitor only needs to inquire regularly without real-time monitoring. And (4) respectively uploading all levels of monitoring information to different alarm windows on the dispatching control system, triggering different alarm sounds and reminding a monitor to treat according to the regulations. However, the following problems often occur during the actual monitoring operation duty process of the monitor:
(1) due to the reasons of equipment maintenance, equipment defects and the like, monitoring information is frequently alarmed, and normal monitoring of a monitor is affected. During equipment maintenance, a large amount of maintenance debugging information (such as an XX protection outlet, an XX switch opening and the like) can be generated, and the information is uploaded to an alarm window of a dispatching control system and triggers a corresponding alarm sound, so that the monitoring of a monitor on normally-operated equipment is influenced. In addition, the defects of damp or vibration of the information contact of the equipment and the like can also cause frequent alarm of certain monitoring information, and influence the normal monitoring of a monitor.
(2) After the monitoring information is fixed in a classified manner, the prompting effect on important abnormity and abnormal displacement of the switch is not obvious, and events that important faults or abnormity are not found or monitored in time easily occur. If the starting information of the oil pump is switched on and off, the normal grade is an informing grade, if the starting and pressing of the oil pump is carried out for more than 10 times per hour, the situation that the oil leakage and other abnormalities of the hydraulic mechanism exist in the switch is indicated, the informing grade information does not need to be monitored and treated in real time by a monitor, an alarming sound box cannot be triggered when the information is uploaded to an alarming window of a monitoring system, and the normal monitoring is not influenced by frequent alarming, so that the monitoring personnel cannot be reminded to find and treat the abnormal events in time according to the original information alarming grade, and the monitoring personnel can easily leak the abnormal events. For another example, the broken line of the switch control loop belongs to an abnormal level according to a specified classification, if the broken line of the control loop is not found and disposed in time when the switch normally operates, the fault range is expanded due to the fact that the switch is refused to operate when equipment related to the switch is in fault, and obviously, the influence importance degree of the broken line information of the control loop, which is sent out when the switch normally operates, is larger than that of other general abnormalities. And if in the following three cases: (1) the information is identified as defective; (2) the switch is in a maintenance state; (3) the associated information generated by the switch operation should be classified from abnormal to informing level to avoid interfering the normal monitoring of the monitor.
In summary, the problems of the prior art are as follows:
at present, monitoring information is classified only according to the degree of influence of the meaning of the description of the monitoring information on the safe operation of a power grid or equipment, and the classification of each monitoring information is fixed, so that the monitoring information cannot be comprehensively judged and automatically adjusted according to the actual state of the equipment when the information is reported, the existing judgment and treatment of the information by a monitor, other related records or data such as an OMS (object management system) or an AVC (automatic voltage control) system, and the influence degree on the centralized monitoring of a transformer substation. The monitoring personnel still need to judge according to experience and knowledge and search related data and records, so that the fault or abnormal event discovery and handling time is prolonged, even the fault and important abnormal monitoring is directly caused, and the risk and hidden danger are brought to the safe operation of the power grid or equipment.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a secondary intelligent grading method for monitoring information alarm of substation equipment. The intelligent grading of the monitoring information alarm of the invention is to carry out automatic secondary grading adjustment on the original graded monitoring information according to the state of the equipment to which the monitoring information belongs, the attribute of the monitoring information, the influence degree on the safe operation of the power grid or the equipment and the centralized monitoring of the transformer substation and the like on the basis of the specified five-grade classification. The intelligent grading of the monitoring information alarm is grading according to the actual condition and the comprehensive influence of an event, and is an effective method for realizing the 'evenized' monitoring of a monitor aiming at the information meaning. Compared with the original fixed classification of the monitoring information, the secondary intelligent classification can be highlighted in key and clear in layer, can avoid the interference of frequent invalid information such as maintenance or defects on the normal monitoring of a monitor, can prevent the monitor from monitoring faults or important abnormal missing, improves the fault or abnormal handling efficiency, and has important significance on the safe and stable operation of a power grid.
The invention is realized in this way, a secondary intelligent grading method for substation equipment monitoring information alarm, comprising:
and (3) directly carrying out secondary grading on the accident, abnormity, out-of-limit, displacement and informing five-level monitoring information as an informing level after any one condition of an alarm inhibiting mark, a maintenance listing mark and a defect mark is met.
Further, when three conditions in the warning inhibition mark, the overhaul listing mark and the defect mark are all not satisfied, the judgment is carried out:
1) the five-level monitoring information is accident information, secondary grading is not carried out, and the information is also accident level;
2) if the information is abnormal information, if the information is frequently sent (the total number of actions and regressions exceeds 20 per hour from the time of the first action of alarm, or exceeds 160 per 24 hours, the frequent sending standard can be customized), the information is secondarily graded and promoted to an accident level due to the influence on normal monitoring;
3) if the accident threshold is exceeded, the information is secondarily classified and promoted to be an accident level, and if the accident threshold is not exceeded, secondary classification is not carried out and the information is still the threshold-crossing level;
4) if the information is the displacement information, if the information is frequently sent (the frequent sending standard can be defined), the information is secondarily graded and promoted to an accident grade due to the influence on normal monitoring; if not frequently:
5) if the information is the notification information, if the frequency reaches the abnormal standard (the abnormal standards of different devices can be respectively defined), although the normal monitoring is not influenced, the abnormal conditions of the devices are reflected, and the information is secondarily graded and promoted to be the abnormal level; if not frequent, the secondary grading is not carried out, and the grade is still the informing grade.
Further, in 2), the frequency is automatically counted, and the total number of actions and regressions is more than 20 per hour from the time of the first action of the alarm, or more than 160 per 24 hours.
Further, in 2), if not frequently occurring, judging:
(1) if the information description is that the switch control circuit is disconnected, the information is automatically reset within 2 seconds, and meanwhile, the information has displacement information of a corresponding switch, which shows that the information is associated information generated by the switch operation, and the secondary classification is reduced from an abnormal level to a notification level; the automatic reset is carried out within 2 seconds, no displacement information of a corresponding switch exists, secondary grading is not carried out, and the information is still in an abnormal grade; if the automatic reset is not performed within 2 seconds, and the switch is in the on position or any phase of the switch has current, the condition is that the switch sends out control loop disconnection information when running, and the control loop disconnection information cannot be reset, at the moment, if equipment related to the switch fails, the switch refuses to operate, the failure protection action is performed, and the accident range is expanded, so that the secondary classification of the information is improved to an accident level from abnormal; if the information is not automatically reset within 2 seconds, and the two conditions of the switch being in the closed position and the current of any phase of the switch are not met, the information is not subjected to secondary classification, and the information is still in an abnormal level;
(2) if the information description is any information of the fault of the measurement and control device, the abnormity of the measurement and control device and the communication interruption of the measurement and control device, and meanwhile, no measurement and control device of the corresponding equipment exits from recording in the running state and the OMS (scheduling production management system), the fact that the measurement and control device of the running equipment has the fault or the abnormity is proved, the related remote signaling and remote measuring cannot change, a monitor cannot perform remote control operation on the related equipment, the monitor cannot perform normal monitoring on the related equipment, and at the moment, the secondary grading of the information is improved to an accident grade from the abnormity; if the corresponding equipment exits the running state at the same time, or although the equipment is in the running state, the measurement and control device exits the record in the OMS system, the secondary classification is not carried out, and the information is still in an abnormal level;
(3) if the information description is any one of the fault information and the abnormal information of the protection device, and the corresponding equipment is in the running state, the OMS system does not have the exit record of the protection device, which indicates that the running protection device has the fault or the abnormality, the protection device is in the unavailable state, after the fault of the power grid or the equipment occurs, the protection is possibly mistaken or refused to be operated, and at the moment, the secondary classification of the information is promoted from the abnormal level to the accident level; if the corresponding equipment exits the running state at the same time, or although the equipment is in the running state, a protection device in the OMS system exits the record, secondary grading is not carried out, and the information is still in an abnormal grade;
(4) if the information description is not any information of the disconnection of the switch control loop, the fault of the measurement and control device, the abnormity of the measurement and control device, the communication interruption of the measurement and control device, the fault of the protection device and the abnormity of the protection device, secondary grading is not carried out, and the information is still in an abnormal grade.
Further, in the 4), if the frequency is not frequent, judging:
A) if the switch is shifted and has total station accident total information of a corresponding transformer substation, the total station accidents are always combined by all interval accidents, the interval accidents are always generated by connecting the position after the switch is switched on and the position after the switch is switched off in series, the switch accident trip is shown to happen at the moment, and the secondary grading of the information is improved to an accident grade from a shift grade; if the total station accident total information of the transformer substation does not exist;
B) if the displacement information is provided with the remote control identification, the switch displacement information is generated for remote control operation of a monitor, the switch normally displaces, secondary grading is not performed, and the information is still in a displacement grade; if the remote control identification is not provided, and the switch success information is controlled by an automatic voltage regulation control system AVC, the switch displacement generated by the AVC system voltage regulation is described, the switch normal displacement is realized, secondary grading is not performed, and the information is still in a displacement grade; if no AVC control the switch success information;
C) if the OMS system has a monitoring transfer order record of the switch operation, the switch displacement is generated in the field operation process after a monitor transfers the switch operation order to a field operation and maintenance worker, the switch displacement belongs to normal displacement of the switch, secondary grading is not performed, and the information is still in a displacement grade; if the switch monitoring transfer record is not available, the switch displacement is indicated to be abnormal displacement, a monitor is reminded to find and dispose in time, and the information secondary classification is promoted from the displacement level to an accident level.
The invention has the advantages and positive effects that:
the classification of the monitoring information alarm is dynamically adjusted according to the actual situation and the comprehensive influence of the event, secondary classification is carried out, the effects of prominent key points and clear layers are achieved, the influence of interference information on the monitoring work of normally running equipment can be avoided, and the occurrence of the event that monitoring personnel monitor important alarm information in a missing mode can be prevented.
The intelligent grading of the monitoring information alarm of the invention is to carry out grading dynamic adjustment on the original graded monitoring information according to the conditions of the state of the equipment to which the monitoring information belongs, the attribute of the monitoring information, the influence degree on the safe operation of the power grid or the equipment and the centralized monitoring of the transformer substation, and the like, and the grading is carried out according to the influence degree of the fault or the abnormal event reflected by the monitoring information, not only aiming at the meaning of the monitoring information. Compared with the fixed classification of the monitoring information, the secondary intelligent classification can avoid invalid information such as overhaul or defects from interfering the monitoring of a monitor on normally-operated equipment, can also prevent the monitor from missing monitoring events of important alarm information, and achieves the effects of prominent key and clear hierarchy.
Drawings
Fig. 1 is a flowchart of a secondary intelligent grading method for monitoring information alarm of substation equipment according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a secondary hierarchical display interface of the alarm window information of the regulation and control system.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the prior art, the classification of the monitoring information alarm is not dynamically adjusted according to the actual condition, and secondary classification is not carried out; the monitoring work of the normally running equipment cannot be influenced by the interference information, and the event that the monitoring personnel fails to monitor important alarm information cannot be prevented.
The invention discloses a secondary intelligent grading method for monitoring information alarm of transformer substation equipment, which comprises the following steps: accident, abnormity, out-of-limit, displacement and informing of five-level monitoring information, and when the information acts or returns, directly grading the information into informing levels for the second time after any one condition of an alarm inhibition mark, a maintenance listing mark and a defect mark is met; judging after three conditions in the alarm suppression identification, the overhaul tag identification and the defect identification are not met: the monitoring information is originally abnormal level information, and if the action times in a period of time interval reach a certain information frequent sending standard (can be customized), the information secondary grading is improved from an abnormal level to an accident level due to influencing the normal monitoring of a monitor; the monitoring information is originally an informing level, and if the action times in a period of time interval reach an abnormal standard (can be defined), the information is upgraded to an abnormal level from informing level secondary grading; and so on.
The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a method for secondary intelligent classification of substation equipment monitoring information alarm provided by the embodiment of the invention.
FIG. 2 is a schematic diagram of a secondary hierarchical display interface of the alarm window information of the regulation and control system.
The secondary intelligent grading method for the monitoring information alarm of the transformer substation equipment provided by the embodiment of the invention comprises the following steps:
1) when any one of the conditions of the alarm suppression mark, the overhaul hang tag mark and the defect mark is met, the five-level monitoring information is directly graded into a notification level for the second time;
2) when the three conditions in 1) are not satisfied:
2.1), is accident information, not secondary grading, the information is also accident grade;
2.2), the information is abnormal information, if the information is frequently sent (the total number of actions and regressions exceeds 20 per hour from the time of the first action of alarm, or exceeds 160 per 24 hours, the frequent sending standard can be customized), the information is secondarily graded and promoted to accident level due to influence on normal monitoring;
if not frequently:
(2.2.1) if the information description is that the switch control loop is disconnected, automatically resetting within 2 seconds, and simultaneously, providing displacement information of a corresponding switch to indicate that the information is associated information generated by switch operation, and reducing the abnormal level into a notification level in secondary grading; the automatic reset is carried out within 2 seconds, no displacement information of a corresponding switch exists, secondary grading is not carried out, and the information is still in an abnormal grade; if the automatic reset is not performed within 2 seconds, and the switch is in the on position or any phase of the switch has current, the condition is that the switch sends out control loop disconnection information when running, and the control loop disconnection information cannot be reset, at the moment, if equipment related to the switch fails, the switch refuses to operate, the failure protection action is performed, and the accident range is expanded, so that the secondary classification of the information is improved to an accident level from abnormal; if the information is not automatically reset within 2 seconds, and the two conditions of the switch being in the closed position and the current of any phase of the switch are not met, the information is not subjected to secondary classification, and the information is still in an abnormal level;
(2.2.2) if the information description is any one of the fault and the abnormity of the protection device, and the corresponding equipment is in the running state, the OMS system does not have the exit record of the protection device, which indicates that the running protection device has the fault or abnormity, the protection device is in the unavailable state, after the fault of the power grid or the equipment occurs, the protection is possibly in the false action or the failure action, and at the moment, the secondary grading of the information is promoted from the abnormal grade to the accident grade; if the corresponding equipment exits the running state at the same time, or although the equipment is in the running state, a protection device in the OMS system exits the record, secondary grading is not carried out, and the information is still in an abnormal grade;
(2.2.3) if the information description is any one of the fault and the abnormity of the protection device, and the corresponding equipment is in the running state, the protection device quits recording in the OMS system, which indicates that the running protection device has the fault or abnormity, the protection device is in the unavailable state, and the protection is possible to be mistaken or refused to be operated after the fault of the power grid or the equipment occurs, at the moment, the secondary grading of the information is promoted from the abnormal grade to the accident grade; if the corresponding equipment exits the running state at the same time, or although the equipment is in the running state, a protection device in the OMS system exits the record, secondary grading is not carried out, and the information is still in an abnormal grade;
(2.2.4), if the information description is not any information of disconnection of the switch control loop, fault of the measurement and control device, abnormity of the measurement and control device, communication interruption of the measurement and control device, fault of the protection device and abnormity of the protection device, secondary classification is not carried out, and the information is still in an abnormal level.
2.3), the information is out-of-limit information, if the information exceeds an accident out-of-limit fixed value, the information is secondarily classified and promoted to be an accident level, and if the information is not the accident out-of-limit, secondary classification is not carried out, and the information is still in the out-of-limit level;
2.4) if the information is the displacement information, if the information is frequently transmitted (the same as 2.2) by self-definition), the information is secondarily classified as an accident level due to the influence on normal monitoring; if not frequently:
(2.4.1) if the switch shifts and total station accident total information of a corresponding transformer substation exists at the same time, the total station accidents are always combined by all interval accidents, the interval accidents are always generated by connecting the closed position and the open position of the switch in series, the switching accident tripping operation is generated at the moment, and the secondary grading of the information is improved to an accident grade from a shift grade; if the total station accident total information of the transformer substation does not exist;
(2.4.2) if the displacement information is provided with the remote control identification, the switch displacement information is generated by remote control operation of a monitor, the switch normally displaces, secondary grading is not carried out, and the information is still in a displacement grade; if the remote control identification is not provided, and the switch success information is controlled by an automatic voltage regulation control system AVC, the switch displacement generated by the AVC system voltage regulation is described, the switch normal displacement is realized, secondary grading is not performed, and the information is still in a displacement grade; if no AVC control the switch success information;
(2.4.3) if the OMS system has a monitoring transfer record of the switch operation, the switch displacement is generated in the field operation process after a monitor transfers the switch operation instruction to a field operation and maintenance worker, the switch displacement belongs to normal switch displacement, secondary grading is not performed, and the information is still in the displacement grade; if the switch monitoring transfer record is not available, the switch displacement is indicated to be abnormal displacement, a monitor is reminded to find and dispose in time, and the information secondary classification is promoted from the displacement level to an accident level.
2.5) if the information is the notification information, if the frequency reaches the abnormal standard (different equipment abnormal standards can be respectively defined), although the normal monitoring is not influenced, the equipment is abnormal, and the information is secondarily graded and promoted to be in an abnormal grade; if not frequent, the secondary grading is not carried out, and the grade is still the informing grade.
The alarm window of the current dispatching control system generally has five label pages of accidents, abnormity, out-of-limit, displacement and notification, and when monitoring information alarm action or reset, the alarm window is displayed on the corresponding graded label page of the alarm window and triggers the corresponding alarm sound. And the monitor judges the occurrence of the alarm event at the corresponding level according to the alarm sound and then checks the alarm content in the corresponding label page. The invention can subdivide the window of the label page as follows: the accident level information label page is divided into two columns, and accident information which is not classified secondarily and information which is promoted to an accident level after secondary classification are respectively displayed; the abnormal level information label page is divided into two columns, and abnormal information which is not secondarily graded and information which is secondarily graded into an abnormal level are respectively displayed; the informing level information label page is divided into two columns, and the informing information which is not secondarily graded is displayed and then is reduced to the informing level information after being secondarily graded. And after the information is graded for the second time, the label page before grading is not displayed, but the corresponding label page after grading is displayed, and the grading reason is displayed. As shown in fig. 2, when the switch is normally operated to send out a control loop disconnection and is not reset within 2 seconds, the information is displayed and marked with reasons on the alarm window 2 of the accident label page; when the switch normally operates to send out the disconnection of the control loop and returns within 2 seconds, but the switch has no displacement, the information is displayed on the abnormal label page warning window 1. When the switch is in the normal remote control operation process or the control loop is broken in the maintenance state, the information is displayed on the alarm window 2 of the label page, and the reason is marked.
The classification level of the monitoring information alarm is dynamically adjusted according to the actual situation, secondary classification is carried out, the effects of prominent key points and clear layers are achieved, the monitoring work of normally running equipment is prevented from being influenced by interference information, and the monitoring missing event of important alarm information by a monitor can be prevented.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (1)
1. A secondary intelligent grading method for substation equipment monitoring information alarm is characterized by comprising the following steps:
when an accident, an abnormality, an out-of-limit, a displacement and an informing of a five-level monitoring information action or a reset are carried out, after any one of an alarm inhibiting mark, a maintenance listing mark and a defect mark is met, directly carrying out secondary grading to obtain an informing level;
when information acts or returns, judging after three conditions in the presence of an alarm suppression mark, the presence of a maintenance listing mark and the presence of a defect mark are not met:
1) the information is classified as accident grade according to the original grade, secondary classification is not carried out, and the information is still in the accident grade;
2) the primary grade of the information is an abnormal grade, if the action times in a period of time interval reach a certain information frequent standard, the secondary grade of the information is improved from abnormal to an accident grade due to the influence on the normal monitoring of a monitor;
3) the primary information grade is an out-of-limit grade, if the out-of-limit value exceeds an accident out-of-limit value, the secondary classification of the out-of-limit information is promoted to be an accident grade from the out-of-limit grade, and if the out-of-limit value does not reach the accident out-of-limit value, the secondary classification is not carried out, and the information is still the out-of-limit grade;
4) the primary grade of the information is a displacement grade, and if the information is frequently transmitted within a period of time, the secondary grade of the information is upgraded from the displacement grade to an accident grade due to the influence on the normal monitoring of a monitor;
5) the primary information level is an informing level, and if the action times in a period of time interval reach an abnormal standard, the secondary information level is improved from the informing level to the abnormal level; if the abnormal standard is not met, secondary grading is not carried out, and the information is still in the informing grade;
and 2), if the frequency is not frequent, judging:
(1) if the information description is that the switch control circuit is disconnected, the information is automatically reset within 2 seconds, and meanwhile, the information has displacement information of a corresponding switch, which shows that the information is associated information generated by the switch operation, and the secondary classification is reduced from an abnormal level to a notification level; the automatic reset is carried out within 2 seconds, no displacement information of a corresponding switch exists, secondary grading is not carried out, and the information is still in an abnormal grade; if the automatic reset is not performed within 2 seconds, and the switch is in the on position or any phase of the switch has current, the condition is that the switch sends out control loop disconnection information when running, and the control loop disconnection information cannot be reset, at the moment, if equipment related to the switch fails, the switch refuses to operate, the failure protection action is performed, and the accident range is expanded, so that the secondary classification of the information is improved to an accident level from abnormal; if the information is not automatically reset within 2 seconds, and the two conditions of the switch being in the closed position and the current of any phase of the switch are not met, the information is not subjected to secondary classification, and the information is still in an abnormal level;
(2) if the information description is any information of the fault of the measurement and control device, the abnormity of the measurement and control device and the communication interruption of the measurement and control device, and meanwhile, no measurement and control device of the corresponding equipment exits from recording in the running state and the OMS (scheduling production management system), the fact that the measurement and control device of the running equipment has the fault or the abnormity is proved, the related remote signaling and remote measuring cannot change, a monitor cannot perform remote control operation on the related equipment, the monitor cannot perform normal monitoring on the related equipment, and at the moment, the secondary grading of the information is improved to an accident grade from the abnormity; if the corresponding equipment exits from the running state or the monitoring and control device exits from the record in the OMS of the scheduling production management system although the equipment is in the running state, secondary classification is not performed, and the information is still in an abnormal level;
(3) if the information description is any one of the fault information and the abnormal information of the protection device, and the corresponding equipment is in the running state, the scheduling production management system OMS does not have the exit record of the protection device, which indicates that the running protection device has the fault or the abnormality, the protection device is in the unavailable state, and the protection is possible to be operated by mistake or refused to be operated after the fault of the power grid or the equipment occurs, and at the moment, the secondary classification of the information is promoted from the abnormal level to the accident level; if the corresponding equipment is in the running state or the equipment is in the running state but a protection device in the OMS exits the record, secondary grading is not carried out and the information is still in an abnormal grade;
(4) if the information description is not any information of disconnection of the switch control loop, fault of the measurement and control device, abnormity of the measurement and control device, communication interruption of the measurement and control device, fault of the protection device and abnormity of the protection device, secondary grading is not carried out, and the information is still in an abnormal grade;
and 4), if the frequency is not frequent, judging:
A) if the switch is shifted and has total station accident total information of a corresponding transformer substation, the total station accidents are always combined by all interval accidents, the interval accidents are always generated by connecting the position after the switch is switched on and the position after the switch is switched off in series, the switch accident trip is shown to happen at the moment, and the secondary grading of the information is improved to an accident grade from a shift grade; if the total station accident total information of the transformer substation does not exist; turning to the next operation;
B) if the displacement information is provided with the remote control identification, the switch displacement information is generated for remote control operation of a monitor, the switch normally displaces, secondary grading is not performed, and the information is still in a displacement grade; if the switch is not provided with the remote control identification, and the switch success information is controlled by the automatic voltage regulation control system AVC, the switch displacement generated by the AVC of the automatic voltage regulation control system is indicated, the switch normal displacement is realized, secondary grading is not performed, and the information is still in a displacement grade; if no automatic voltage regulation control system AVC controls the switch success information; turning to the next operation;
C) if the OMS of the dispatching production management system has the monitoring transfer record of the switch operation, the switch displacement is generated in the field operation process after a monitor transfers the switch operation instruction to a field operation and maintenance worker, the switch displacement belongs to normal displacement of the switch, secondary grading is not performed, and the information is still in a displacement grade; if the switch monitoring transfer record is not available, the switch displacement is indicated to be abnormal displacement, a monitor is reminded to find and dispose in time, and the information secondary classification is promoted from the displacement level to an accident level.
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| CN112677182A (en) * | 2020-12-22 | 2021-04-20 | 国网浙江省电力有限公司金华供电公司 | Intelligent abnormal fault diagnosis method based on robot operation |
| CN114115028A (en) * | 2021-11-24 | 2022-03-01 | 广东电网有限责任公司东莞供电局 | Method and system for OCS to automatically identify alarm signal state |
| CN115042655A (en) * | 2022-07-07 | 2022-09-13 | 国网上海市电力公司 | Electric ship direct-current charging interface safety protection method, device and system |
| CN115358371A (en) * | 2022-08-15 | 2022-11-18 | 云南电网有限责任公司玉溪供电局 | Power grid monitoring information incident intelligent identification method based on deep learning |
| CN117543840A (en) * | 2024-01-10 | 2024-02-09 | 湖北中巽泰科技有限公司 | Intelligent analysis and auxiliary decision-making system based on centralized monitoring data of transformer substation |
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