CN109767108B - Accurate analysis method for line state of power dispatching system - Google Patents
Accurate analysis method for line state of power dispatching system Download PDFInfo
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Abstract
The invention provides an accurate analysis method for a line state of a power dispatching system, which comprises the following steps: extracting the serial numbers of all lines; acquiring the current day event statistical information of the power grid, and acquiring accident abnormal information and operation change information from the current day event statistical information; acquiring accident abnormal information and operation change information containing line numbers as event analysis objects; retrieving keywords in each event analysis object, and judging whether a line event corresponding to the event analysis object is power failure or power transmission according to the keywords and marking; and for event analysis objects marked as power failure and power transmission, respectively substituting the current, active power and reactive power at the head end and the tail end of the line on the day into a power failure proofreading model and a power transmission proofreading model for proofreading. According to the invention, the line events in the statistical information of the current day events of the power grid are checked, the line state analysis is carried out based on the screened line events, the accuracy of the line state analysis of the power grid is improved, and the analysis efficiency is improved.
Description
Technical Field
The invention relates to the technical field of power grid dispatching, in particular to a method for accurately analyzing a line state of a power dispatching system.
Background
The state of the line of the dispatching system is divided into power failure and operation, the transition of the two states is called state switching, and the state switching is divided into power failure or power transmission.
The dispatching production data is an important part of monitoring of a power grid power quality system, and the power data integrated in the system from a dispatching technology support system mainly comprises related information such as power grid frequency, power grid voltage, power grid equipment ledger and power transmission and transformation equipment switching. The time and the equipment for accurately judging and scheduling the state switching event of the power transmission and transformation equipment of the power grid can reflect the running state of the power grid in a certain area, provide sufficient support for fault finding, fault analysis and fault isolation, and further improve the data quality of the power grid.
The reasons for the event causing the line state switching are: 1. accidents or abnormity occur, so that equipment is damaged and cannot be used, and the circuit is characterized in that power failure occurs, but the remote signaling values of the circuit breakers on the two sides are still high level. 2. The operation and maintenance personnel carry out maintenance according to a planned task, and the remote signaling value of the circuit breakers on two sides of the circuit is converted from a high level to a low level at the same time, and the remote signaling value of the grounding disconnecting link is converted from the low level to the high level. 3. The temporary operation intentionally changes the state of the circuit breakers at two sides of the line, and is characterized in that one side or two sides of the circuit breakers at two sides of the line are converted into low level, but the remote signaling value of the grounding disconnecting link is still low level.
The existing method for judging the reason of line state switching of the dispatching system is carried out by manually inquiring the site and inquiring a dispatching log through a telephone, and the problems caused by the original method are as follows: the reason for the occurrence of the state switching event on the line cannot be known in time; it takes a lot of effort and relies on experience for interpretation.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a method for accurately analyzing the line state of a power dispatching system.
The invention provides an accurate analysis method for a line state of a power dispatching system, which comprises the following steps:
s1, acquiring information of all lines in a power grid, extracting the number of each line, and storing the line number into a preset database;
s2, acquiring the statistical information of the current day event of the power grid, and acquiring accident abnormal information and operation change information from the statistical information of the current day event; the accident abnormal information set = A-B, wherein A is an event that trip is contained in the event statistical information of the current day, and B is an event that coincidence is successful contained in the event statistical information of the current day; the operation change information set = C-D, wherein C is an event of changing operation or changing maintenance contained in the event statistical information of the day, and D is an event of a factory, a station or a field contained in the event statistical information of the day;
s3, acquiring accident abnormal information and operation change information containing line numbers as event analysis objects;
s4, classifying the events into power failure and power transmission, and presetting a corresponding relation between keywords in the text of the event information and the events;
s5, retrieving keywords in each event analysis object, and judging whether a line event corresponding to the event analysis object is power failure or power transmission according to the keywords and marking;
s6, setting a power failure correction model:
{(Iimax-Iimin)/Iimax>k1&(Ijmax-Ijmin)/Ijmax>k1}U{(Pimax-Pimin)/Pimax>k2&(Pjmax-Pjmin)/Pjmax>k2}；
setting a power transmission proofreading model:
{1＞(Iimax-Iimin)/Iimax≥k3&1＞(Ijmax-Ijmin)/Ijmax≥k3}U{1＞(Pimax-Pimin)/Pimax≥k3&1＞(Pjmax-Pjmin)/Pjmax≥k3}；k1﹤k3，k2﹤k3；
the Iimax, pimax and Qimax are the maximum current value, the maximum active value and the maximum reactive value of the head end of the line at the same day, and the Iimin, pimin and Qimin are the minimum current value, the minimum active value and the minimum reactive value of the head end of the line at the same day; ijmax, pjmax and Qjmax are the maximum current value, the maximum active value and the maximum reactive value at the tail end of the line on the day, and Ijmin, pjmin and Qjmin are the minimum current value, the minimum active value and the minimum reactive value at the tail end of the line on the day;
s7, substituting the current, active power and reactive power of the head end and the tail end of the line at the same day into a power failure proofreading model for an event analysis object marked as power failure, and obtaining one of Iimax, ijmax, pimax and Pjmax with the earliest occurrence time as power failure time after the proofreading is successful; if the checking fails, giving up the event information;
and S8, substituting the current, active power and reactive power of the head end and the tail end of the line at the current day into a power transmission proofreading model for an event analysis object marked as power transmission, and after the proofreading is successful, acquiring the earliest one of Iimax, ijmax, pimax and Pjmax as power transmission time.
Preferably, in step S1, the line information is read from the provincial D5000 system.
Preferably, in step S2, the current day event statistical information of the power grid is read from the provincial dispatching OMS system.
Preferably, in step S4, the keyword corresponding to the power outage includes: pulling, deactivating and tripping; the keywords corresponding to power transmission include: and (5) closing.
Preferably, k2 is less than k1 than k3.
Preferably, k1=0.3, k2=0.1, and k3=0.9.
Preferably, the method further comprises the step S9: the method for judging the reason of the line state switching event comprises the following steps:
s91, acquiring maintenance plan information in a scheduling log of the current day of the power grid, and carrying out standardized processing on the maintenance plan information; acquiring a line number contained in the maintenance plan and an event analysis object corresponding to the line number;
S91A, judging whether a power transmission plan condition exists in corresponding maintenance plan information or not aiming at an event analysis object marked as power transmission, and if so, marking a reason of a line state switching event as a plan; if not, the line event information is abandoned;
the power transmission plan conditions are: the remote signaling value of the circuit breaker at the head end of the line is converted from low level to high level, the remote signaling value of the circuit breaker at the tail end of the line is converted from low level to high level, the remote signaling value of the grounding switch at the head end of the line is converted from high level to low level, and the remote signaling value of the circuit breaker at the tail end of the line is converted from high level to low level;
S91B, judging whether a power failure planning condition exists in corresponding maintenance plan information aiming at the event analysis object marked as power failure, if so, marking the reason of the line state switching event as a plan; if not, the line event information is abandoned;
the power failure planning conditions are as follows: the remote signaling value of the circuit breaker at the head end of the line is converted from high level to low level, the remote signaling value of the circuit breaker at the tail end of the line is converted from high level to low level, the remote signaling value of the grounding switch at the head end of the line is converted from low level to high level, and the remote signaling value of the circuit breaker at the tail end of the line is converted from low level to high level;
s92, acquiring a line number which exists in the exception handling information of the current day of the scheduling log and does not exist in the maintenance plan information, and an event analysis object corresponding to the line number;
S92A, aiming at an event analysis object marked as power transmission, if remote signaling values of a circuit breaker at the head end and a circuit breaker at the tail end of the circuit are both low levels, and remote signaling values of a grounding switch at the head end and a grounding switch at the tail end of the circuit are both high levels, marking the reason of a circuit state switching event as an accident; otherwise, abandoning the line event information;
S92B, aiming at the event analysis object marked as power failure, if remote signaling values of the circuit breaker at the head end and the circuit breaker at the tail end are both high levels and remote signaling values of the grounding switch at the head end and the grounding switch at the tail end are both low levels, marking the reason of the line state switching event as an accident; otherwise, abandoning the line event information;
s93, acquiring a line number which does not exist in the exception handling information and does not exist in the maintenance plan information, and an event analysis object corresponding to the line number;
S93A, aiming at an event analysis object marked as power transmission, if a circuit breaker at the head end of the line is converted from a low level to a high level or a circuit breaker at the tail end is converted from a low level to a high level, a line state switching event reason is marked as scheduling; otherwise, abandoning the line event information;
S93B, aiming at the event analysis object marked as power failure, if the circuit breaker at the head end of the line is converted from high level to low level or the circuit breaker at the tail end is converted from high level to low level, the reason of the line state switching event is marked as scheduling; otherwise, the line event information is abandoned.
Preferably, in step S91, the specific method for performing the normalization processing on the maintenance schedule information includes: unifying the line number information in the maintenance plan information and the line number in the event analysis object.
Preferably, the dispatch log is retrieved from the PMS system.
According to the method for accurately analyzing the line state of the power dispatching system, the line power failure time and the line power transmission time are rechecked through the current, active power and reactive power calculation of the head end and the tail end of the line, the line events in the statistical information of the current day events of a power grid are checked, invalid events are eliminated, the effectiveness and the accuracy of the screened power failure events and power transmission events are guaranteed, the line state analysis is carried out based on the screened line events, the accuracy of the line state analysis of the power grid is improved, and the analysis efficiency is improved.
In the invention, after the line event is checked, the power failure time or the power transmission time is obtained according to Iimax, ijmax, pimax and Pjmax, so that the time information is further improved, and the reference data of line state analysis is enriched.
In the invention, accident abnormal data and operation change data in the master station OMS system are combined with the equipment account data of the dispatching system to study and judge the line state switching time, thereby improving the time precision and judging speed; the operation ticket data in the master station OMS system is combined with the historical data of the scheduling system equipment to study and judge the line state switching event, so that the accuracy is improved.
Drawings
Fig. 1 is a flowchart of a method for accurately analyzing a line state of a power dispatching system according to the present invention;
fig. 2 is a flowchart illustrating a process for determining a reason for a line state switching event.
Detailed Description
Referring to fig. 1, the method for accurately analyzing the line state of the power dispatching system provided by the invention comprises the following steps:
s1, acquiring information of all lines in a power grid, extracting the number of each line, and storing the line number into a preset database. Specifically, in this step, the information of all lines in the power grid is directly read from the provincial dispatching D5000 system.
And S2, acquiring the statistical information of the current day event of the power grid, and acquiring accident abnormal information and operation change information from the statistical information of the current day event. And the accident abnormal information set = A-B, wherein A is an event that the statistical information of the event on the current day comprises tripping, and B is an event that the statistical information of the event on the current day comprises successful coincidence. That is, in the present embodiment, the accident abnormality information is the line event in which the current day event statistic information includes a trip and does not include a successful overlap.
The operation change information set = C-D, where C is an event including a change of operation or a change of maintenance in the event statistical information of the day, and D is an event including a plant, a station, or a yard in the event statistical information of the day. That is, the operation change information is a line event including a change of operation or a change of maintenance in the event statistical information on the day and not including a plant, a station, or a yard.
Specifically, in this step, the statistics information of the current day event of the power grid is read from the provincial dispatching OMS system. And S3, acquiring accident abnormal information and operation change information containing the line number as event analysis objects. That is, in this step, a line event including a line number is selected as an event analysis target from the event abnormality information set and the operation change information set.
Therefore, by combining the step S2 and the step S3, accident abnormal information and operation change information are directly obtained through set operation, the information statistics efficiency is improved, and omission of events is avoided, so that the data comprehensiveness of power grid line state analysis is guaranteed.
And S4, classifying the events into power failure and power transmission, and presetting a corresponding relation between keywords in the text of the event information and the events. Specifically, in this step, the keywords corresponding to the power outage include: pulling, deactivating and tripping; the keywords corresponding to power transmission include: and (5) closing.
And S5, searching keywords in each event analysis object, judging whether the line event corresponding to the event analysis object is power failure or power transmission according to the keywords, and marking.
S6, setting a power failure correction model:
{(Iimax-Iimin)/Iimax>k1&(Ijmax-Ijmin)/Ijmax>k1}U{(Pimax-Pimin)/P imax>k2&(Pjmax-Pjmin)/Pjmax>k2}。
setting a power transmission proofreading model:
{1＞(Iimax-Iimin)/Iimax≥k3&1＞(Ijmax-Ijmin)/Ijmax≥k3}U{1＞(Pimax-Pimin)/Pimax≥k3&1＞(Pjmax-Pjmin)/Pjmax≥k3}。k1﹤k3，k2﹤k3。
the Iimax, pimax and Qimax are the maximum current value, the maximum active value and the maximum reactive value of the head end of the line at the day, and the Iimin, pimin and Qimin are the minimum current value, the minimum active value and the minimum reactive value of the head end of the line at the day. Ijmax, pjmax and Qjmax are the maximum current value, the maximum active value and the maximum reactive value at the tail end of the line on the day, and Ijmin, pjmin and Qjmin are the minimum current value, the minimum active value and the minimum reactive value at the tail end of the line on the day.
In the present embodiment, k2 < k1 < k3, specifically, k1=0.3, k2=0.1, and k3=0.9.
And S7, substituting the current, active power and reactive power at the head end and the tail end of the line in the day into the power failure proofreading model for the event analysis object marked as power failure, and acquiring the earliest one of Iimax, ijmax, pimax and Pjmax as the power failure time after the proofreading is successful. And if the checking fails, giving up the event information.
And S8, substituting the current, active power and reactive power of the head end and the tail end of the line at the current day into a power transmission proofreading model for an event analysis object marked as power transmission, and after the proofreading is successful, acquiring the earliest one of Iimax, ijmax, pimax and Pjmax as power transmission time.
Therefore, in the embodiment, the line power failure time and the line power transmission time are rechecked through the current, active power and reactive power calculation of the head end and the tail end of the line, the line events in the statistical information of the current day events of the power grid are checked, and invalid events are eliminated, so that the effectiveness and the accuracy of the screened power failure events and power transmission events are ensured, the line state analysis is carried out based on the screened line events, the accuracy of the line state analysis of the power grid is improved, and the analysis efficiency is improved.
In the embodiment, after the line event is checked, the power failure time or the power transmission time is acquired according to Iimax, ijmax, pimax and Pjmax, so that the time information is further improved, and reference data for line state analysis is enriched.
The method for accurately analyzing the line state of the power dispatching system provided by the embodiment further comprises the following step S9: the method for judging the reason of the line state switching event comprises the following steps:
s91, acquiring maintenance plan information in a scheduling log of the current day of the power grid, and carrying out standardized processing on the maintenance plan information. And acquiring a line number contained in the maintenance plan and an event analysis object corresponding to the line number. In this step, the specific method for performing the standardized processing on the maintenance plan information is as follows: unifying the line number information in the maintenance plan information and the line number in the event analysis object. For example, "1#, 2#, 3# in the maintenance schedule information is replaced with" #1, #2, #3", or" I, II, III "is replaced with" I, II, III ". Specifically, in the present embodiment, the dispatch log is called from the PMS system.
S91A, for the event analysis object indicated as power transmission, determines whether or not a power transmission planning condition exists in the corresponding maintenance plan information, and if so, marks the cause of the line state switching event as a plan. And if not, abandoning the line event information.
The power transmission plan conditions are: the remote signaling value of the circuit breaker at the head end of the line is converted from low level to high level, the remote signaling value of the circuit breaker at the tail end of the line is converted from low level to high level, the remote signaling value of the grounding switch at the head end of the line is converted from high level to low level, and the remote signaling value of the circuit breaker at the tail end of the line is converted from high level to low level.
And S91B, judging whether a power failure planning condition exists in the corresponding maintenance planning information aiming at the event analysis object marked as power failure, and if so, marking the reason of the line state switching event as a plan. And if not, abandoning the line event information.
The power failure planning conditions are as follows: the remote signaling value of the circuit breaker at the head end of the line is converted from high level to low level, the remote signaling value of the circuit breaker at the tail end of the line is converted from high level to low level, the remote signaling value of the grounding switch at the head end of the line is converted from low level to high level, and the remote signaling value of the circuit breaker at the tail end of the line is converted from low level to high level.
And S92, acquiring the line number which exists in the abnormal processing information of the current day of the scheduling log and does not exist in the maintenance schedule information, and an event analysis object corresponding to the line number.
And S92A, aiming at the event analysis object marked as power transmission, if the remote signaling values of the circuit breaker at the head end and the circuit breaker at the tail end are both low levels and the remote signaling values of the grounding disconnecting link at the head end and the grounding disconnecting link at the tail end are both high levels, marking the reason of the circuit state switching event as an accident. Otherwise, the line event information is abandoned.
And S92B, aiming at the event analysis object marked as power failure, if the remote signaling values of the circuit breaker at the head end and the circuit breaker at the tail end are both high levels and the remote signaling values of the grounding switch at the head end and the grounding switch at the tail end are both low levels, marking the reason of the line state switching event as an accident. Otherwise, the line event information is abandoned.
And S93, acquiring the line number which is not in the abnormal processing information and is not in the maintenance planning information and the event analysis object corresponding to the line number.
And S93A, aiming at the event analysis object marked as power transmission, if the circuit breaker at the head end of the line is converted from low level to high level or the circuit breaker at the tail end is converted from low level to high level, the reason of the line state switching event is marked as scheduling. Otherwise, the line event information is abandoned.
And S93B, aiming at the event analysis object marked as power failure, if the circuit breaker at the head end of the line is converted from high level to low level or the circuit breaker at the tail end is converted from high level to low level, the reason of the line state switching event is marked as scheduling. Otherwise, the line event information is abandoned.
In this way, in the present embodiment, the route number is combined with the dispatch log and the route event, and the reason for the route state switching event is further traced according to the maintenance plan information and the exception handling information. Therefore, in the embodiment, the state switching event, the line name, the line ID, the station, the region, the occurrence time, the state switching reason and the like can be finally obtained and charged into the line account information, so that the perfection and the richness of the line account information are ensured, and then the line account information is pushed to the network server interface, so that the staff can know the state of the power grid line according to the line account information.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (7)
1. A method for accurately analyzing the line state of a power dispatching system is characterized by comprising the following steps:
s1, acquiring information of all lines in a power grid, extracting the number of each line, and storing the line number into a preset database;
s2, acquiring the statistical information of the current day event of the power grid, and acquiring accident abnormal information and operation change information from the statistical information of the current day event; the accident anomaly information set = A-B, wherein A is an event of tripping contained in the event statistical information of the current day, and B is an event of successful coincidence contained in the event statistical information of the current day; the operation change information set = C-D, wherein C is an event of switching operation or switching maintenance contained in the event statistical information of the day, and D is an event of a factory, a station or a field contained in the event statistical information of the day;
s3, acquiring accident abnormal information and operation change information containing line numbers as event analysis objects;
s4, classifying the events into power failure and power transmission, and presetting a corresponding relation between keywords in the text of the event information and the events;
s5, retrieving keywords in each event analysis object, and judging whether a line event corresponding to the event analysis object is power failure or power transmission according to the keywords and marking;
s6, setting a power failure correction model:
{(Iimax-Iimin)/Iimax>k1&(Ijmax-Ijmin)/Ijmax>k1}U{(Pimax-Pimin)/Pimax>k2&(Pjmax-Pjmin)/Pjmax>k2}；
setting a power transmission proofreading model:
{1＞(Iimax-Iimin)/Iimax≥k3&1＞(Ijmax-Ijmin)/Ijmax≥k3}U{1＞(Pimax-Pimin)/Pimax≥k3&1＞(Pjmax-Pjmin)/Pjmax≥k3}；k1﹤k3，k2﹤k3；
the Iimax, pimax and Qimax are the maximum current value, the maximum active value and the maximum reactive value of the head end of the line at the same day, and the Iimin, pimin and Qimin are the minimum current value, the minimum active value and the minimum reactive value of the head end of the line at the same day; ijmax, pjmax and Qjmax are the maximum current value, the maximum active value and the maximum reactive value at the tail end of the line on the day, and Ijmin, pjmin and Qjmin are the minimum current value, the minimum active value and the minimum reactive value at the tail end of the line on the day;
s7, substituting the current, active power and reactive power at the head end and the tail end of the line on the day in the event information into the power failure proofreading model for the event analysis object marked as power failure, and acquiring the earliest one of Iimax, ijmax, pimax and Pjmax as power failure time after the proofreading is successful; if the checking fails, giving up the event information;
s8, substituting the current, active power and reactive power of the head end and the tail end of the line at the day into a power transmission proofreading model for an event analysis object marked as power transmission, and after the proofreading is successful, acquiring one of Iimax, ijmax, pimax and Pjmax with the earliest occurrence time as power transmission time;
k2﹤k1﹤k3;k1=0.3，k2=0.1，k3=0.9。
2. the method for accurately analyzing the line state of the power dispatching system according to claim 1, wherein in step S1, the line information is read from a provincial dispatching D5000 system.
3. The method for accurately analyzing the line state of the power dispatching system according to claim 1, wherein in step S2, the statistical information of the current day event of the power grid is read from the provincial dispatching OMS system.
4. The method for accurately analyzing the line status of the power dispatching system according to claim 1, wherein in step S4, the keyword corresponding to the power outage comprises: pull-open, disable, and trip; the keywords corresponding to power transmission include: and (5) closing.
5. The method for accurately analyzing the line state of the power dispatching system according to claim 1, further comprising the step S9: the method for judging the reason of the line state switching event comprises the following steps:
s91, acquiring maintenance plan information in a scheduling log of the current day of the power grid, and carrying out standardized processing on the maintenance plan information; acquiring a line number contained in the maintenance plan and an event analysis object corresponding to the line number;
S91A, judging whether a power transmission plan condition exists in maintenance plan information corresponding to the line event information aiming at an event analysis object marked as power transmission, if so, marking a line state switching event reason as a plan; if not, the line event information is abandoned;
the power transmission plan conditions are: the remote signaling value of the circuit breaker at the head end of the line is converted from low level to high level, the remote signaling value of the circuit breaker at the tail end of the line is converted from low level to high level, the remote signaling value of the grounding switch at the head end of the line is converted from high level to low level, and the remote signaling value of the circuit breaker at the tail end of the line is converted from high level to low level;
S91B, judging whether a power failure planning condition exists in maintenance planning information corresponding to the line event information aiming at the event analysis object marked as power failure, if so, marking the reason of the line state switching event as a plan; if not, the line event information is abandoned;
the power failure planning conditions are as follows: the remote signaling value of the circuit breaker at the head end of the line is converted from high level to low level, the remote signaling value of the circuit breaker at the tail end of the line is converted from high level to low level, the remote signaling value of the grounding switch at the head end of the line is converted from low level to high level, and the remote signaling value of the circuit breaker at the tail end of the line is converted from low level to high level;
s92, acquiring a line number which exists in the exception handling information of the current day of the scheduling log and does not exist in the maintenance plan information, and an event analysis object corresponding to the line number;
S92A, aiming at an event analysis object marked as power transmission, if remote signaling values of a circuit breaker at the head end of the circuit and a circuit breaker at the tail end of the circuit in the circuit event information are both low levels and remote signaling values of a grounding disconnecting link at the head end of the circuit and a grounding disconnecting link at the tail end of the circuit are both high levels, marking the reason of the circuit state switching event as an accident; otherwise, abandoning the line event information;
S92B, aiming at the event analysis object marked as power failure, if remote signaling values of a circuit breaker at the head end of the circuit and a circuit breaker at the tail end of the circuit in the circuit event information are both high levels, and remote signaling values of a grounding disconnecting link at the head end of the circuit and a grounding disconnecting link at the tail end of the circuit are both low levels, marking the reason of the circuit state switching event as an accident; otherwise, abandoning the line event information;
s93, acquiring a line number which does not exist in the exception handling information and does not exist in the maintenance planning information, and an event analysis object corresponding to the line number;
S93A, aiming at an event analysis object marked as power transmission, if a circuit breaker at the head end of the circuit is converted from a low level to a high level or a circuit breaker at the tail end of the circuit is converted from the low level to the high level in the circuit event information, marking a reason for a circuit state switching event as scheduling; otherwise, abandoning the line event information;
S93B, aiming at the event analysis object marked as power failure, if the circuit breaker at the head end of the circuit is converted from high level to low level or the circuit breaker at the tail end is converted from high level to low level in the circuit event information, the reason of the circuit state switching event is marked as scheduling; otherwise, the line event information is abandoned.
6. The method for accurately analyzing the line state of the power dispatching system according to claim 5, wherein in step S91, the specific method for performing the standardized processing on the maintenance plan information comprises the following steps: unifying the line number information in the maintenance plan information and the line number in the event analysis object.
7. The method for accurately analyzing the line state of the power dispatching system according to claim 5, wherein the dispatch log is called from the PMS system.
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| CN201811650658.1A CN109767108B (en) | 2018-12-31 | 2018-12-31 | Accurate analysis method for line state of power dispatching system |
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| CN110647567B (en) * | 2019-09-12 | 2022-12-06 | 国网河北省电力有限公司 | Power failure plan auxiliary decision system based on end data fusion |
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