CN115001133B - Intelligent power-off and power-on switching operation method and system in traction power supply system - Google Patents
Intelligent power-off and power-on switching operation method and system in traction power supply system Download PDFInfo
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- CN115001133B CN115001133B CN202210426830.5A CN202210426830A CN115001133B CN 115001133 B CN115001133 B CN 115001133B CN 202210426830 A CN202210426830 A CN 202210426830A CN 115001133 B CN115001133 B CN 115001133B
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06316—Sequencing of tasks or work
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
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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
- Y04S10/40—Display of information, e.g. of data or controls
Abstract
The invention belongs to the technical field of power interruption and transmission of a power supply system, and particularly provides an intelligent power interruption and transmission switching operation method and system in a traction power supply system, wherein the method comprises the following steps: the construction plan, the maintenance plan, the overhead line system temporary operation plan and the pavilion equipment power failure operation plan are intelligently checked and analyzed and then sent to an MQ message queue; after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification; if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel with different types of kiosks according to the same plan and different types of kiosks, and finally judging the power failure result and automatically hanging a card; if the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result. The scheme is efficient and safer to execute.
Description
Technical Field
The invention relates to the technical field of power interruption and transmission of a power supply system, in particular to an intelligent power interruption and transmission switching operation method and system in a traction power supply system.
Background
In traction power supply systems, power cut switching operations are an important task. In the existing power-on and power-off switching operation, a dispatcher manually performs remote control operation on single equipment at a pavilion according to an operation plan, and after a program-controlled card is available, the dispatcher can manually call out the program-controlled card to perform switching operation on a series of equipment at the corresponding pavilion. Although the power-on/off switching operation is performed by using a program control manner, the switching operation is more convenient and efficient than manual remote control on a single device, in an actual power supply dispatching control system, a plurality of construction or maintenance plans may exist in a short period of time, a temporary operation plan of a contact net and a power-off operation plan of a pavilion device are triggered by manual operation, the power-on/off switching operation is performed by using a plurality of program controls, the consumption time is too long, the efficiency is not enough, the switching operation of a dispatcher is influenced, and then the maintenance and construction plan on site is influenced. More importantly, the manual operation of the program control card by the dispatcher or the situation that a single device is likely to be in error can cause serious potential safety hazards.
Disclosure of Invention
The invention aims at the technical problems of high failure rate and low efficiency of power-off and switching operation in a traction power supply system in the prior art.
The invention provides an intelligent power-off and power-on switching operation method in a traction power supply system, which comprises the following steps of:
S1, after intelligent auditing and analysis, a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of pavilion equipment are sent to a message queue of the MQ;
s2, after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification;
s3, if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel according to different pavilions of the same plan and different types of pavilions of different plans, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result.
Preferably, when the power is off in the step S3, different types of kiosks are planned in the same order, and the different types of kiosks are planned in parallel, and the power off switching operation is executed specifically including: switching belonging to an operation plan is required to be executed in sequence;
Specifically, firstly, equipment of an open/close station is stopped, after stopping, equipment of an AT and a partition station are stopped AT the same time, and finally, equipment of a substation is stopped;
The kiosks of the same type which do not belong to the same operation plan are simultaneously and parallelly operated to switch:
Specifically, the substation types are executed simultaneously, the switching station types are executed simultaneously, the partition types are executed simultaneously, and the AT types are executed simultaneously.
Preferably, the step of determining the power outage result in S3 specifically includes:
(1) Remote signaling judgment: checking whether the switch state in each program control is in a split state or not;
(2) Telemetry judgment: checking whether the terminal voltage of each partition of the operation plan is less than 3KV and the feeder current of the substation is less than 10A;
(3) And (3) remote control judgment: checking whether each program control is executed;
If one of the three conditions is not met, the power failure operation fails; whether successful or failed, the outage results are sent to the MQ queues.
Preferably, the step S3 further includes: in the power failure process, if abnormality occurs, the power failure operation is terminated, and further judgment is made:
If the AT and the subarea are abnormal, the dispatcher decides by himself, and if the normal state is recovered through the manual intervention, the follow-up operation of the operation plan can be continued by clicking a 'continue' button;
If the power substation and the switching station are abnormal, a dispatcher is not required to decide, and the follow-up operation cannot be continued.
Preferably, the switching operation in the power transmission operation in S3 is performed in the following order: firstly, equipment of a substation is sent, after the equipment is sent, the equipment of the AT and the equipment of a subarea are sent AT the same time, and finally the equipment of an opening and closing station is sent;
the switching sequence of the power transmission operation plans belonging to the same level is executed in parallel.
Preferably, the determining the power transmission result in S3 specifically includes:
(a) Remote signaling judgment: checking whether the switch state in each program control is in the closing position;
(b) Telemetry judgment: checking whether the terminal voltage of each operation planned partition is greater than 19KV;
(c) And (3) remote control judgment: checking whether each program control is executed;
only if all three conditions are satisfied, the power transmission operation is successful; if one of the power delivery operations fails, either successfully or failed, the power delivery results are sent to the MQ queue.
Preferably, the S1 specifically includes:
the power supply dispatching operation management system intelligently audits and analyzes a construction or maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment, and sends program control card contents to be powered off and powered on to the SCADA system in an MQ data transmission mode;
And the communication mode of the power supply dispatching job management system and the SCADA system adopts a queue mode in an ActiveMQ.
The invention also provides an intelligent power-off and power-on switching operation system in the traction power supply system, which is used for realizing the intelligent power-off and power-on switching operation method in the traction power supply system, and comprises the following steps:
the power supply dispatching operation management system is used for intelligently auditing and analyzing a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment and then sending the intelligent auditing and analysis results to a message queue of the MQ;
The SCADA system is used for receiving the queue information, and then popping up a corresponding program control group interface for the dispatcher to audit and operate after analysis and verification;
If the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel with different types of kiosks according to the same plan and different types of kiosks, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result.
The invention also provides electronic equipment, which comprises a memory and a processor, wherein the processor is used for realizing the steps of the intelligent power-off and power-on switching operation method in the traction power supply system when executing the computer management program stored in the memory.
The invention also provides a computer readable storage medium, on which a computer management program is stored, which when executed by a processor, implements the steps of the intelligent power-off and power-on switching operation method in a traction power supply system.
The beneficial effects are that: the invention provides an intelligent power-off and power-on switching operation method and system in a traction power supply system, wherein the method comprises the following steps: the construction plan, the maintenance plan, the overhead line system temporary operation plan and the pavilion equipment power failure operation plan are intelligently checked and analyzed and then sent to an MQ message queue; after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification; if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel with different types of kiosks according to the same plan and different types of kiosks, and finally judging the power failure result and automatically hanging a card; if the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result. The polling distribution mechanism of the MQ is adopted, the switching card to be operated is obtained from the polling distribution mechanism through intelligent audit analysis of the power supply dispatching operation management system, a data model is built for current and voltage information in the traction power supply system to conduct data analysis, so that a required feeder line current value, a terminal voltage value and the like are obtained, the relation among kiosks is analyzed, the kiosks in the same plan are sequentially operated according to a specified relation when the switching operation is performed during power failure and power transmission, switching of different plans is synchronously executed, therefore, the execution efficiency can be improved, the power failure and power transmission time is greatly shortened, misoperation caused by manual operation equipment and program control cards is avoided, the operation safety of the power supply system is improved, and the life safety is ensured.
Drawings
FIG. 1 is a flow chart of a method for intelligent power-off and power-on switching operation in a traction power supply system;
Fig. 2 is a schematic hardware structure of one possible electronic device according to the present invention;
FIG. 3 is a schematic diagram of a possible hardware configuration of a computer readable storage medium according to the present invention;
FIG. 4 is a schematic block diagram of an intelligent power-off and power-on switching operation system in a traction power supply system;
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Fig. 1 is a diagram showing an intelligent power-off switching operation method in a traction power supply system, which comprises the following steps:
S1, after the construction plan, the maintenance plan, the overhead line system temporary operation plan and the booth equipment power failure operation plan are intelligently checked and analyzed, the construction plan, the maintenance plan, the overhead line system temporary operation plan and the booth equipment power failure operation plan are sent to a message queue of the MQ. The power supply operation management system performs auditing and publishing on the operation plan, and then performs safety card control on the operation plan implementation process, so that intelligent identification, intelligent auditing, intelligent retrieval and intelligent card control are realized.
S2, after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification. The SCADA system and the power supply dispatching operation management system communicate by setting a message format by utilizing a message mechanism of the MQ, the power supply dispatching operation management system carries out intelligent auditing and analysis on a construction or maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment, and the content of a program-controlled card to be powered on and powered off and a user name to be processed are sent to the MQ server in an MQ data transmission mode.
The SCADA system acts as a consumer of MQs on multiple dispatchers. After receiving the message of the MQ message queue, the SCADA system on each dispatching desk analyzes whether the user name in the message is consistent with the user name logged in by the current system, if so, the subsequent processing is continued, a corresponding switching program control interface is popped up, and a dispatcher can perform subsequent switching operation; if the message is inconsistent, the host name corresponding to the user name in the message is found from the user table of the database, and then the received complete MQ message is sent to a dispatching desk of the corresponding host, so that a consumer of the dispatching desk processes the message.
S3, if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel according to different pavilions of the same plan and different types of pavilions of different plans, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result. After the corresponding dispatching desk starts a program control group switching interface, if the power failure operation is carried out, the SCADA system firstly checks whether the feeder current is smaller than 50A, after the power failure operation is met, firstly executes switching stations according to the same plan when switching is executed, then simultaneously executes AT and zoning stations, finally executes power failure of the substation in sequence, and the power failure operation is executed in parallel by different plans without mutual influence. After the power failure is completed, according to three judging conditions of remote signaling, remote sensing and remote control, the switch is all in a target position division mode, the feeder line current and voltage values are in a range of values analyzed according to data modeling, each program control is executed, the success of the power failure switching operation is judged, and then the SCADA system carries out automatic listing operation on related equipment, so that the related equipment is not movable. If the abnormality exists in the middle, the abnormality in the substation and the switching station cannot be continued, and the abnormality in the subarea and the AT station can be continued to be subjected to subsequent switching operation under the condition that the manual recovery or the judgment of a dispatcher can be omitted; if the power transmission operation is performed, the SCADA system firstly automatically picks up the card of the card-hanging equipment, and then firstly performs power transmission to the substation, the AT, the subarea and the switching station according to the same plan when switching is performed after the card-hanging equipment is completed, and finally performs power transmission to the switching station in sequence, wherein the power transmission operations are performed in parallel according to different plans without mutual influence. After the power transmission is finished, according to three judging conditions of remote signaling, remote sensing and remote control, the switch is in a target closing position, the terminal voltage value is in a value range analyzed according to data modeling, and each program control is executed, so that the success of the power transmission switching operation can be judged. If the abnormality exists in the middle, the abnormality in the substation and the switching station cannot be continued, and the subsequent switching operation can be continued under the condition that the abnormality in the partition station and the AT station is manually recovered or the judgment of a dispatcher is negligible. And finally, whether the switching of power cut and power transmission is successful or not, the SCADA system sends a switching result to the MQ queue, and the power supply dispatching operation management system takes out from the queue for subsequent analysis and processing.
Wherein SCADA (Supervisory Control And Data Acquisition) systems, namely data acquisition and monitoring control systems. The SCADA system is a DCS control system and an electric power automatic monitoring system based on a computer; the method has wide application fields, and can be applied to various fields such as data acquisition and monitoring control, process control and the like in the fields of electric power, metallurgy, petroleum, chemical industry, fuel gas, railways and the like.
Among the power systems, the SCADA system is most widely used and the technology development is most mature. The system takes an important role in a telemechanical system, can monitor and control on-site operation equipment to realize various functions such as data acquisition, equipment control, measurement, parameter adjustment, various signal alarms and the like, namely a known four-remote function, namely an RTU (remote terminal unit), wherein the FTU (feeder terminal unit) is an important component of the system.
According to the embodiment of the invention, a polling distribution mechanism of the MQ is adopted, the switching card to be operated is obtained from the polling distribution mechanism through intelligent audit analysis of the power supply dispatching operation management system, a data model is built for current and voltage information in the traction power supply system to conduct data analysis, so that a required feeder line current value, a terminal voltage value and the like are obtained, and the relation among pavilions is analyzed, so that the pavilions in the same plan are sequentially operated according to a specified relation when power is cut off and power is transmitted, switching of different plans is synchronously executed, the execution efficiency is improved, the power cut-off and power transmission time is greatly shortened, misoperation caused by manual operation equipment and program control cards is avoided, the operation safety of the power supply system is improved, and the life safety is ensured.
In one specific implementation scenario:
The power supply dispatching operation management system carries out intelligent auditing and analysis on a construction or maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment, program control card content to be powered down and powered on is sent to an MQ server in an MQ data transmission mode, once the SCADA system receives the message, the message of an MQ queue is taken out, the corresponding program control card group is popped up after processing and analysis, a dispatcher does not need to manually find a single program control card or manually execute a single device to remotely control the power down and powered on, but on a plurality of popped program control card interfaces, after checking the card by the dispatcher, an execution button is directly clicked, and the power can be quickly powered down and powered on. And the result is analyzed and judged and then sent to a power supply dispatching operation management system for subsequent processing. The specific process is as follows:
1. Intelligent auditing process of power supply dispatching job management system
(1) Operation plan auditing and publishing
A, reading and importing: all construction plans of the transportation scheduling management TDM5.0 system of the railway bureau can be automatically read and automatically imported (or manually imported), and the plans related to the power supply scheduling can be intelligently identified;
B, auditing and issuing: the intelligent and manual auditing method can intelligently and manually audit the construction plan and automatically distribute the construction plan to related electric dispatching desks and network work area terminals in batches.
(2) Work plan implementation process
The method can carry out safety card control on links such as operation planning circulation of a contact network, content confirmation before operation, confirmation, issuing, receiving, executing, signing, selling and the like of power-off command content and operation command content.
(3) Intelligent function
(A) The intelligent identification can automatically identify all operation plans related to power supply scheduling;
(b) The intelligent auditing can intelligently audit the contents of construction sites, engineering mileage, construction contents, influence ranges, vehicle limiting cards and the like;
(c) Intelligent searching, namely, the network area name, the substation name, the electric tuning name and the train tuning name can be automatically searched to accurately push the content;
(f) The intelligent card control, the overhead line system power failure operation, the same person must not accept two operation orders at the same time. Before power transmission, the same power supply arm has other work which is not yet ordered, and a power transmission command cannot be executed. The pavilion is powered off for operation, and whether the same person of the substation receives two switching commands at the same time is intelligently detected.
2. And the power supply scheduling job management system and the SCADA system.
The communication between the power supply dispatching job management system and the SCADA system adopts an ActiveMQ.
MQ is a message middleware, a medium by which applications communicate messages in a distributed system, commonly known as ActiveMQ, rabbitMQ, kafka. ActiveMQ is an open source project under Apache, supports a client written in multiple languages, and can improve the security of data and the utilization rate of resources.
The ActiveMQ message is in the form of a topic, queue. The invention adopts queue because of safety, state and difficult data loss.
After the SCADA system and the power supply operation management system prescribe the transmitted information format, the SCADA system and the power supply operation management system can carry out interactive communication according to the agreed data format. There is a problem in both communication that results in the failure of the dispatcher station of the SCADA system to receive the message. Such as:
After the intelligent auditing and analysis of the operation plan, the power supply dispatching operation management system sends a power-off switching message to the MQ queue, and the message is provided with a user name, and the SCADA system serving as a consumer logs in different users, so that a subsequent switching program control group interface can be popped up only when the user name in the queue is matched with the user name of the SCADA system logged in the dispatching desk. In practice, however, there will be multiple schedules in the power supply system, and the power supply scheduling job management system will only have one, i.e. multiple producers correspond to one consumer, and when a producer produces a message to put in a queue, how does it decide which consumer to consume? This requires exploring the processing mechanism to MQ to be poll distribution, i.e. no matter how many consumers are, no matter who is busy and idle, no more messages are given, always you one me one, each fair distribution. This mechanism presents a problem for SCADA systems with multiple schedulers when they log in to different users: consumers who really need to cancel the message queue do not divide the message, but the message is distributed to a dispatching desk which does not need to process the message by the MQ service, and the phenomenon of falling empty can occur.
In order to solve the problem, the invention adopts a message mechanism for processing, and the principle is as follows: after receiving the message of the MQ message queue, the SCADA system on each dispatching desk analyzes and processes whether the user name in the message is consistent with the user name logged in by the current system, if so, the subsequent processing is continued, a corresponding switching program control interface is popped up, and a dispatcher can perform subsequent switching operation; if the message is inconsistent, the host name corresponding to the user name in the message is found from the user table of the database, and then the received complete MQ message is sent to a dispatching desk of the corresponding host, so that a consumer of the dispatching desk processes the message. Therefore, the power supply dispatching job management system can not empty the messages sent each time, find out correct consumers to process the messages, and improve switching efficiency.
And 3, the SCADA system stops power transmission operation:
The power supply dispatching operation management system transmits a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment to a message queue of the MQ after intelligent auditing and analysis. After receiving the queue information, the SCADA system pops up a program control interface after analysis and verification, and can perform subsequent operation after the dispatcher is checked. Mainly has two aspects of power failure and power transmission.
(1) Power outage operation
1) Condition check before power failure
If the power supply scheduling job management system sends a power failure command, when the program control group is required to be executed, whether the power failure condition is satisfied is judged: whether the feeder current of the substation is less than 50A (to ensure that no car is actually running).
2) Switching execution sequence
Since the power supply scheduling job management system transmits a plurality of job plans, a plurality of substations, division sites, AT sites, and switching sites are involved. To realize the switching of the power failure together with a plurality of plans, a parallel control (a plurality of program control parallel execution) measure is adopted, but the substation, the partition station, the AT station and the switching station have certain sequence requirements, so the following power failure sequence is adopted:
switching belonging to an operation plan needs to be performed in sequence:
The method comprises the steps of switching station- > AT and partition station- > substation, namely firstly stopping equipment of the switching station, then simultaneously stopping equipment of the AT and the partition station after stopping, and finally stopping equipment of the substation.
The execution sequence of the operation plans belonging to the same level needs to be executed in parallel, namely program control groups of different operation plans are executed simultaneously, and the program control groups are not influenced mutually.
Therefore, the power failure sequence in each operation plan is satisfied, the efficiency of the whole power failure operation is improved, and the power failure time is saved.
3) Judging power failure result
After the power failure program control group is executed, the power failure result needs to be checked, and three aspects need to be judged:
a, remote signaling judgment: checking whether the switch state in each program control is in a split state or not;
and B, telemetering judgment: checking whether the terminal voltage of each operation plan partition is less than 3KV (the monitoring condition of the partition is detected) and the feeder current of the transformer substation is less than 10A;
C, remote control judgment: it is checked whether each program control is executed.
Only if the above ABC conditions are satisfied, the power failure operation is successful. If one of the power failures is not satisfied, the power failure operation fails. And whether successful or failed, the power failure result is sent to the MQ queue, and the power supply job scheduling management system receives the power supply job and then performs subsequent processing.
It is to be taught here how the threshold value of the current voltage is determined: in the system, a power supply arm (feeder line) is used for establishing a data model for data typing, and historical data analysis, comparison and judgment are carried out on terminal voltage and current values after the power failure switching operation is completed on all currents and voltages in the same power supply arm. And (3) acquiring historical data, automatically reading the value of the latest days for comparison, adding a historical data reference factor and the historical data of each month into a model for later discrimination, and dynamically adjusting the historical comparison value by adopting a learning algorithm so as to estimate and obtain the thresholds of the feeder current value and the terminal voltage value after the power failure switching operation is completed.
4) Abnormal occurrence of power failure
In the power failure process, various anomalies such as channel interruption, switch refusal, equipment hanging and the like occur, after the anomalies occur, the program-controlled switching operation is terminated, and the continuous operation is continued by prompting whether to ignore the anomalies, at this time, the situation-dividing processing is needed:
If the AT and the subarea are abnormal, the dispatcher decides by himself, if the normal state is restored through the manual intervention or the dispatcher judges that the influence of the abnormality is not great, the follow-up operation of the operation plan can be continued by clicking a 'continue' button;
If the power substation and the switching station are abnormal, a dispatcher is not required to decide, and the follow-up operation cannot be continued.
When the power failure switching operation is completed, the SCADA system can automatically hang up the related equipment to be operated, so that a dispatcher cannot control the equipment, and misoperation cannot occur.
(2) Power transmission operation
The specific procedures in which the power transmitting operation is basically opposite to the power cut operation are as follows:
1) Automatic picking card
The condition check is not required before power transmission, but the SCADA system is required to automatically put the device quotation removal on hold for subsequent operation.
2) Switching execution sequence
Since the power supply scheduling job management system transmits a plurality of job plans, a plurality of substations, division sites, AT sites, and switching sites are involved. In order to perform power transmission switching together by a plurality of plans, measures are taken and controlled (a plurality of program controlled are executed in parallel), but a certain sequence is required among a substation, a subarea, an AT (automatic teller machine) station and an opening and closing station, so the following power transmission sequence is adopted:
The switching sequence belonging to an operation plan:
Substation- > AT, partition substation- > switching station. Firstly, the equipment of the substation is sent, after the equipment is sent, the equipment of the AT and the equipment of the subarea are sent AT the same time, and finally the equipment of the switching station is sent.
The switching sequence of the operation plans belonging to the same level is executed in parallel, namely, the program control groups of different operation plans execute switching simultaneously, and the switching sequences are not influenced.
Thus, the power transmission sequence in each operation plan is satisfied, the efficiency of the whole power transmission operation is improved, and the power transmission time is saved.
3) Power transmission result judgment
After the power transmission program group is executed, the power transmission result needs to be checked, and three aspects need to be judged:
(a) Remote signaling judgment: checking whether the switch state in each program control is in the closing position;
(b) Telemetry judgment: checking whether the terminal voltage of each operation planned partition is greater than 19KV;
(c) And (3) remote control judgment: it is checked whether each program control is executed.
Only if all of the above three conditions are satisfied, the power transmitting operation is successful. If one of the power transmission operations is not satisfied, the power transmission operation fails. And whether successful or unsuccessful, the power transmission result is sent to the MQ queue, and the power supply job scheduling management system receives the power transmission result and then performs subsequent processing.
The voltage threshold value during power transmission switching is as follows: in the system, a power supply arm (feeder line) is used for establishing a data model for data typing, and historical data analysis, comparison and judgment are carried out on the terminal voltage value after the power transmission switching operation is completed on all voltages in the same power supply arm. And acquiring historical data, automatically reading the value of the latest day for comparison, adding a historical data reference factor and the historical data of each month into the model for later discrimination, and dynamically adjusting the historical comparison value by adopting a learning algorithm so as to estimate and obtain the threshold value of the terminal voltage value after the power transmission switching operation is completed.
4) Abnormal power transmission
In the power transmission process, various anomalies such as channel interruption, switch refusal, equipment listing and the like occur, after the anomalies occur, the program-controlled switching operation is terminated, a dispatcher is prompted whether to ignore the anomalies and continue to execute, and at the moment, the situation-dividing processing is needed:
If the AT and the subarea are abnormal, the dispatcher decides by himself, if the normal state is restored through the manual intervention or the dispatcher judges that the influence of the abnormality is not great, the follow-up operation of the operation plan can be continued by clicking a 'continue' button;
If the power substation and the switching station are abnormal, a dispatcher is not required to decide, and the follow-up operation cannot be continued.
As shown in fig. 4, the present invention further provides an intelligent power-off and power-on switching operation system in a traction power supply system, where the system is configured to implement the intelligent power-off and power-on switching operation method in the traction power supply system as described above, and the method includes:
the power supply dispatching operation management system is used for intelligently auditing and analyzing a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment and then sending the intelligent auditing and analysis results to a message queue of the MQ;
The SCADA system is used for receiving the queue information, and then popping up a corresponding program control group interface for the dispatcher to audit and operate after analysis and verification;
If the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel with different types of kiosks according to the same plan and different types of kiosks, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result.
The intelligent power supply system is a dispatching system combining a power supply telecontrol system (comprising SCADA) and a power supply dispatching job management system. The power supply dispatching operation management system is used for controlling the process of power supply dispatching skylight operation or power outage and transmission safety measures in emergency, and effectively clamping and controlling power outage and transmission standard operation behaviors. Through the intelligent and flow auditing of the contact network and the stopped operation plan, the networked signing, issuing, implementation and safety measures of the operation plan and various commands are effectively controlled, so that the standardized and standardized operation of the whole process of power supply dispatching power and transmission stopping operation is realized. In order to better master and control the power interruption and transmission condition of the power supply telecontrol system, the intelligent power supply system needs to be updated on the basis of the SCADA platform so as to acquire program control data from the power supply dispatching operation management system to execute power interruption and transmission operation, and send power interruption and transmission result data to the power supply dispatching operation management system, and the operation management system performs deep intelligent analysis according to the sent SCADA data, and finally provides an analysis result for power supply management staff to facilitate management.
Specifically, the power supply dispatching operation management system carries out intelligent auditing and analysis on a construction or maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment, program control card contents to be powered down are sent to an MQ server in an MQ data transmission mode, once the SCADA system receives the message, the message of an MQ queue is taken out, the corresponding program control card group is popped up after processing and analysis, a dispatcher does not need to manually find a single program control card or manually execute a single device to remotely control power down and power up, but on a plurality of popped program control card interfaces, after checking the card by the dispatcher, an execution button is directly clicked, and power down and power up can be quickly powered down. And the result is analyzed and judged and then sent to a power supply dispatching operation management system for subsequent processing.
In order to ensure the integrity of the whole function of the power supply system, the method fully utilizes the data of the SCADA system, improves the power-on and power-off switching-over efficiency of the SCADA system, and can cooperate with the power supply dispatching operation management system by perfecting the functions of the existing SCADA system, so that the SCADA system better serves the management work of the power supply system, and a dispatcher can conveniently and rapidly and safely perform the power-on and power-off switching-over operation.
Fig. 2 is a schematic diagram of an embodiment of an electronic device according to an embodiment of the present invention. As shown in fig. 2, an embodiment of the present invention provides an electronic device, including a memory 1310, a processor 1320, and a computer program 1311 stored in the memory 1310 and executable on the processor 1320, wherein the processor 1320 executes the computer program 1311 to implement the following steps: s1, after intelligent auditing and analysis, a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of pavilion equipment are sent to a message queue of the MQ;
s2, after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification;
s3, if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel according to different pavilions of the same plan and different types of pavilions of different plans, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result.
Fig. 3 is a schematic diagram of an embodiment of a computer readable storage medium according to the present invention. As shown in fig. 3, the present embodiment provides a computer-readable storage medium 1400 having stored thereon a computer program 1411, which computer program 1411, when executed by a processor, performs the steps of: s1, after intelligent auditing and analysis, a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of pavilion equipment are sent to a message queue of the MQ;
s2, after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification;
s3, if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel according to different pavilions of the same plan and different types of pavilions of different plans, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result.
In the foregoing embodiments, the descriptions of the embodiments are focused on, and for those portions of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. An intelligent power-off and power-on switching operation method in a traction power supply system is characterized by comprising the following steps of:
S1, after intelligent auditing and analysis, a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of pavilion equipment are sent to a message queue of the MQ;
s2, after receiving the queue information, the SCADA system pops up a corresponding program control interface for the dispatcher to audit and operate after analysis and verification;
s3, if the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel according to different pavilions of the same plan and different types of pavilions of different plans, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result;
The step S3 further includes: in the power failure process, if abnormality occurs, the power failure operation is terminated, and further judgment is made: if the AT and the subarea are abnormal, the dispatcher decides by himself, and if the normal state is recovered through the manual intervention, the follow-up operation of the operation plan can be continued by clicking a 'continue' button; if the power substation and the switching station are abnormal, a dispatcher is not required to decide, and the follow-up operation cannot be continued.
2. The method for intelligent power-off and power-on switching operation in a traction power supply system according to claim 1, wherein the step S3 is characterized in that the power-off switching operation is performed in parallel with different types of kiosks according to the same schedule in the same order of kiosks: switching belonging to an operation plan is required to be executed in sequence;
Specifically, firstly, equipment of an open/close station is stopped, after stopping, equipment of an AT and a partition station are stopped AT the same time, and finally, equipment of a substation is stopped;
The kiosks of the same type which do not belong to the same operation plan are simultaneously and parallelly operated to switch:
Specifically, the substation types are executed simultaneously, the switching station types are executed simultaneously, the partition types are executed simultaneously, and the AT types are executed simultaneously.
3. The method for intelligent power-off and switching operation in a traction power supply system according to claim 1, wherein the step of determining the power failure result in S3 specifically includes:
(1) Remote signaling judgment: checking whether the switch state in each program control is in a split state or not;
(2) Telemetry judgment: checking whether the terminal voltage of each partition of the operation plan is less than 3KV and the feeder current of the substation is less than 10A;
(3) And (3) remote control judgment: checking whether each program control is executed;
If one of the three conditions is not met, the power failure operation fails; whether successful or failed, the outage results are sent to the MQ queues.
4. The intelligent power-cut switching operation method in a traction power supply system according to claim 1, wherein the switching operation sequence in the power-cut operation in S3 is as follows: firstly, equipment of a substation is sent, after the equipment is sent, the equipment of the AT and the equipment of a subarea are sent AT the same time, and finally the equipment of an opening and closing station is sent; the switching sequence of the power transmission operation plans belonging to the same level is executed in parallel.
5. The method for intelligent power-off and power-on switching operation in a traction power supply system according to claim 1, wherein the step S3 of determining the power-on result specifically includes:
(a) Remote signaling judgment: checking whether the switch state in each program control is in the closing position;
(b) Telemetry judgment: checking whether the terminal voltage of each operation planned partition is greater than 19KV;
(c) And (3) remote control judgment: checking whether each program control is executed;
only if all three conditions are satisfied, the power transmission operation is successful; if one of the power delivery operations fails, either successfully or failed, the power delivery results are sent to the MQ queue.
6. The method for intelligent power-off and power-on switching operation in a traction power supply system according to claim 1, wherein S1 specifically comprises:
the power supply dispatching operation management system intelligently audits and analyzes a construction or maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment, and sends program control card contents to be powered off and powered on to the SCADA system in an MQ data transmission mode;
And the communication mode of the power supply dispatching job management system and the SCADA system adopts a queue mode in an ActiveMQ.
7. An intelligent power-off and power-on switching operation system in a traction power supply system, which is characterized in that the system is used for realizing the intelligent power-off and power-on switching operation method in the traction power supply system according to any one of claims 1-6, and comprises the following steps:
the power supply dispatching operation management system is used for intelligently auditing and analyzing a construction plan, a maintenance plan, a temporary operation plan of the overhead line system and a power failure operation plan of the pavilion equipment and then sending the intelligent auditing and analysis results to a message queue of the MQ;
The SCADA system is used for receiving the queue information, and then popping up a corresponding program control group interface for the dispatcher to audit and operate after analysis and verification;
If the queue information is a power failure operation command, firstly checking the condition before power failure, then executing power failure switching operation in parallel with different types of kiosks according to the same plan and different types of kiosks, and finally judging the power failure result and automatically hanging a card;
If the queue information is a power transmission operation command, automatically picking up the cards, executing power transmission switching operation in parallel according to different types of pavilions of the same plan and different types of pavilions of different plans, and finally judging a power transmission result.
8. An electronic device, comprising a memory and a processor, wherein the processor is configured to implement the steps of the intelligent power-off and power-on switching method in the traction power supply system according to any one of claims 1 to 6 when executing a computer management program stored in the memory.
9. A computer readable storage medium, wherein a computer management class program is stored thereon, which when executed by a processor, implements the steps of the intelligent power cut and power transfer switching method in a traction power supply system according to any one of claims 1 to 6.
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