CN113872329A - Intelligent power distribution system and method - Google Patents
Intelligent power distribution system and method Download PDFInfo
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- CN113872329A CN113872329A CN202111148658.3A CN202111148658A CN113872329A CN 113872329 A CN113872329 A CN 113872329A CN 202111148658 A CN202111148658 A CN 202111148658A CN 113872329 A CN113872329 A CN 113872329A
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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
- H02J13/00001—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 the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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
- H02J13/00002—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 monitoring
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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
- H02J13/00006—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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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
- H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/242—Home appliances
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Human Computer Interaction (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses an intelligent power distribution system, which relates to the technical field of power distribution informatization, and comprises a power failure operation examination management server, a power distribution automation system and a power distribution automation communication network, wherein the power distribution automation system comprises a substation operation server and a power distribution automation server, the substation operation server and the power distribution automation server are connected with a substation operation information database, a power distribution system connection information database and a section load database, and the power failure operation examination management server comprises a section load calculation unit, a power failure operation section setting unit, a standby line setting unit, a working process setting unit, a simulation execution unit and an operation list generation unit; the invention can plan and plan the transfer of the line load in advance, can eliminate the problems possibly occurring in the operation process by combining simulation, and improves the speed of the transfer of the line load.
Description
Technical Field
The invention relates to the technical field of power distribution informatization, in particular to an intelligent power distribution system.
Background
The intelligent power distribution system is a set of electric energy management system which is secondarily developed according to the requirements of users and following the standard specification of the power distribution system, has the characteristics of strong professional, high automation degree, easy use, high performance, high reliability and the like, and is suitable for a low-voltage power distribution system; the intelligent power distribution system integrates an object-oriented technology, a component technology, a network technology, an internet technology, a database technology, a visualization technology, a middleware technology, an intelligent electrical appliance technology, an anti-interference technology, a reliability technology and a cross-platform technology; the intelligent power distribution system in the prior art can remotely and automatically transfer line loads through automatic switch or circuit breaker and other power grid equipment, but manual operation is needed for some lines which are not completely automated, the manual operation is lack of planning, and the problem of power supply is easy to occur after the operation.
Disclosure of Invention
The invention provides an intelligent power distribution system, which solves the technical problem that manual operation is lack of planning in the related technology.
According to an aspect of the present invention, there is provided an intelligent power distribution system including a power outage operation audit management server, a power distribution automation system, and a power distribution automation communication network,
the distribution automation system is connected to the equipment on the distribution network through a distribution automation communication network, information is sent and received between the distribution automation system and the equipment on the distribution network through the distribution automation communication network, the distribution automation system comprises a substation operation server and a distribution automation server, the substation operation server and the distribution automation server are connected with a substation operation information database, a distribution system connection information database and a section load database,
the substation operation server includes a substation automation system that performs operations of a substation facility;
the distribution automation server collects on-off states of devices of the distribution network and power information including at least voltage information and current information through the distribution automation communication network to monitor current states and loads of the distribution network.
And the distribution automation server sends a control command to the distribution line terminal equipment and the distribution line switch equipment through a distribution automation communication network. And replacing the power supply line and transferring the load according to the work overload and the fault through the distribution line switch equipment.
The distribution automation server includes a distribution automation main server for transmitting control instructions to distribution line terminal devices and distribution line switching devices, and a distribution automation history server for storing distribution system information, history information, and the like.
The substation operation information database stores and manages substation load information, substation system information, and substation breaker operation information.
The distribution system connection information database stores and manages distribution system connection line information and transformer capacity information.
The section load database stores and manages load current information of the automatic switch equipment, load current information per hour, maximum load information, minimum load information and average load information;
the power failure operation examination management server comprises an interval load calculation unit, a power failure operation interval setting unit, a standby line setting unit, a workflow setting unit, a simulation execution unit and an operation list generation unit, wherein,
the section load calculation unit is used for predicting the section load of the scheduled date and time of the operation;
the power failure operation interval setting unit is used for setting a power failure operation interval as a minimum interval containing a manual switch in the distribution line;
the standby line setting unit is used for determining a standby line in a power failure operation interval;
the work flow setting unit determines an operation step for a power failure operation interval;
the simulation execution unit performs simulation according to the determined operation steps;
the operation sheet generation unit generates an operation sheet by reflecting the simulation result in the determined job step.
The intelligent power distribution system also includes a user terminal connected to the blackout operation audit management server and providing a user with an interface for system monitoring and control.
The section load calculation unit predicts a section load of a predetermined job date and time based on statistical data including a history load by season, a history load by weather condition, and a history load by time.
The interval load calculation unit calculates an interval load of the manual switch based on the statistical data comprehensive floating multiplying power.
Further, a historical load of the same time period, the same season and the same weather is selected as a base, temperature is used as a variable, and floating multiplying power = | (T-30)/(T-30) + (T-10)/(T-10) |, wherein T is the temperature of the historical load, and T is the temperature of the scheduled date and time of the operation.
The power failure operation interval setting unit sets a power distribution line power failure operation interval in a single line diagram of the power system.
The spare line setting unit searches for a spare line for transferring a load according to information of a power outage section, determines one or more spare lines, and automatically selects one spare line from the determined one or more spare lines.
Further, the spare line setting unit searches for a spare line for transferring a load according to information of the power outage section and the set priority;
the standby line setting unit searches a standby line in a power supply ring network where an operation interval is located;
and in the second priority, the standby line setting unit searches for a standby line which does not need to transfer the whole load in a line outside the power supply ring network where the operation interval is located.
And in the third priority, the standby line setting unit searches for a standby line for transferring the whole load in a line outside the power supply ring network where the operation interval is located.
The distribution automation system further comprises a road illumination control server, the road illumination control server is connected with an image acquisition unit, the image acquisition unit is used for shooting images of vehicles on a road under an illuminating lamp, the road illumination control server comprises a vehicle tracking unit, the vehicle tracking unit is connected with a vehicle tracking database, the vehicle tracking database is used for storing a traffic road map, and the traffic road map comprises a plurality of road sections and intersections formed by crossing the road sections;
the vehicle tracking unit is used for tracking the driving route of the vehicle, and the tracking of the vehicle tracking unit comprises the following steps:
selecting an image acquisition unit for shooting an image of a vehicle as a starting point image acquisition unit, and taking the vehicle as a tracking target;
judging the driving direction of the tracking target according to the image of the vehicle shot by the starting point image acquisition unit, further judging the road section which the tracking target possibly enters, and sending a control instruction to an illuminating lamp on the road section which the tracking target possibly enters to control the illuminating lamp to be turned on;
selecting an image acquisition unit of an illuminating lamp of an intersection of a road section terminal point where a tracking target is likely to enter as a terminal point image acquisition unit, selecting a terminal point image acquisition unit which shoots an image of a vehicle identical to an image of the vehicle shot by a starting point image acquisition unit as a new starting point image acquisition unit, and terminating tracking until no new starting point image acquisition unit exists;
the method for judging whether the image of the vehicle shot by the end point image acquisition unit is the same as the image of the vehicle shot by the starting point image acquisition unit comprises the following steps:
and carrying out image similarity calculation on the image of the vehicle shot by the end point image acquisition unit and the image of the vehicle shot by the starting point image acquisition unit, if the image similarity exceeds a set threshold value, judging that the image of the vehicle shot by the end point image acquisition unit is the same as the image of the vehicle shot by the starting point image acquisition unit, and otherwise, judging that the images are different.
According to one aspect of the present invention, there is provided a power distribution method of an intelligent power distribution system, comprising the steps of:
step S1, the section load calculation unit predicts a section load of a predetermined job date and time;
step S2, the section load calculation unit calculates the section load of the manual switch using the predicted section load of the predetermined operation date and time;
step S3, the power failure operation interval setting unit sets the power failure operation interval of the distribution line comprising the manual switch;
step S4, the work flow setting unit determines the power failure work section;
step S5, the simulation execution unit uses the determined operation steps to carry out simulation;
in step S6, the operation sheet generation unit composes an operation sheet by the job step and the simulation result.
Further, the result of the simulation execution unit is fed back to the workflow setting unit, and the workflow setting unit modifies the operation steps of the power failure operation interval based on the result of the simulation execution unit and then the simulation execution unit carries out simulation again.
The invention has the beneficial effects that:
the invention can plan and plan the transfer of the line load in advance, can eliminate the problems possibly occurring in the manual operation process by combining simulation, and improves the speed of the transfer of the line load.
Drawings
FIG. 1 is a block schematic diagram of an intelligent power distribution system in accordance with an embodiment of the present invention;
fig. 2 is a block diagram of a power outage operation audit management server according to an embodiment of the present invention;
fig. 3 is a first block diagram of a distribution automation system according to an embodiment of the present invention;
FIG. 4 is a simplified schematic diagram of a power distribution network of an embodiment of the present invention;
fig. 5 is a flow chart of a power distribution method of the intelligent power distribution system of an embodiment of the present invention;
fig. 6 is a second block diagram of a distribution automation system according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an image of a vehicle captured by a starting point image capturing unit according to an embodiment of the present invention to determine that the vehicle is moving straight;
FIG. 8 is a schematic diagram of an image of a vehicle captured by a starting point image capturing unit according to an embodiment of the present invention to determine that the vehicle turns left;
fig. 9 is a schematic diagram of the image of the vehicle captured by the starting point image capturing unit to determine whether the vehicle is going straight or turning right according to the embodiment of the present invention.
In the figure: the power outage operation review management server 100, the power distribution automation system 200, the power distribution automation communication network 300, the power distribution network 400, the user terminal 500, the section load calculation unit 110, the power outage operation section setting unit 120, the reserve line setting unit 130, the workflow setting unit 140, the simulation execution unit 150, the operation order generation unit 160, the substation operation server 210, the substation operation information database 220, the power distribution automation server 230, the system comprises a power distribution system connection information database 240, a section load database 250, a road illumination control server 260, a vehicle tracking database 270, a substation breaker 410, a substation terminal device 420, a distribution line breaker 430, a distribution line switch 440, a distribution line terminal device 450, an illuminating lamp 500, an image acquisition unit 600, an a-section road 801, a B-section road 802, a C-section road 803 and a D-section road 804.
Detailed Description
The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thereby implement the subject matter described herein, and are not intended to limit the scope, applicability, or examples set forth in the claims. Changes may be made in the function and arrangement of elements discussed without departing from the scope of the disclosure. Various examples may omit, substitute, or add various procedures or components as needed. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with respect to some examples may also be combined in other examples.
As shown in fig. 4, a simplified schematic diagram of a distribution network 400 is provided, the distribution network 400 comprising a distribution line breaker 430, a distribution line switch 440, a distribution line terminal device 450, a substation breaker 410 connected to the substation, the substation comprising a substation terminal device 420. The above-mentioned devices can be operated automatically or manually, and the devices can be connected with each other through wires.
As shown in fig. 1 to 3, the intelligent power distribution system includes a blackout operation audit management server 100, a power distribution automation system 200, and a power distribution automation communication network 300;
the intelligent power distribution system further includes various user terminals 500 connected to the blackout operation audit management server 100 and providing users with interfaces for system monitoring and control.
The power outage operation audit management server 100 acquires various necessary information from the distribution automation system 200, simulates in advance a power outage task transfer operation, and writes a work instruction by reflecting the result. Specifically, the blackout operation audit management server 100 predicts a load on a scheduled working day, a load on a manual switching segment, and a loop current in linkage between the power distribution system information, the substation system information, and the transformer capacity information.
The distribution automation system 200 is connected to devices on the distribution network 400 through the distribution automation communication network 300, and the devices on the distribution network 400 include the aforementioned substation breaker 410, substation terminal device 420, distribution line breaker 430, distribution line switch 440 device, and distribution line terminal device 450; information is transmitted and received between the distribution automation system 200 and the devices of the distribution network 400 through the distribution automation communication network 300.
The distribution automation system 200 comprises a substation operation server 210 and a distribution automation server 230, the substation operation server 210 and the distribution automation server 230 each being connected to a substation operation information database 220, a distribution system connection information database 240 and a segment load database 250.
The substation operation server 210 includes a substation automation System (SCADA) that performs operations of a substation facility and a substation operation result management system that stores system information, load information, and the like.
The distribution automation server 230 collects the switching states of the devices of the distribution network 400 and power information including at least voltage information and current information through the distribution automation communication network 300 to monitor the current state and load of the distribution network 400.
The distribution automation server 230 sends control instructions to the distribution line terminal equipment 450 and the distribution line switch 440 equipment via the distribution automation communication network 300. The equipment performs replacement of the power supply line and load transfer according to the operation overload and failure through the distribution line switch 440.
The distribution automation server 230 includes a distribution automation master server for transmitting control instructions to the distribution line terminal devices 450 and the distribution line switch 440 devices, and a distribution automation history server for storing distribution system information, history information, and the like.
The substation operation information database 220 stores and manages substation load information, substation system information, and substation breaker 410 operation information.
The distribution system connection information database 240 stores and manages distribution system connection line information and transformer capacity information.
The zone load database 250 stores and manages automatic switchgear load current information, hourly load current information, maximum load information, minimum load information, and average load information.
The user terminal 500 provides a necessary operation management interface to each user participating in the power outage operation. The users comprise a power management department, a power maintenance department and power utilization terminal users;
the blackout operation audit management server 100 includes an interval load calculation unit 110, a blackout job interval setting unit 120, a reserve line setting unit 130, a workflow setting unit 140, a simulation execution unit 150, and an operation order generation unit 160, wherein,
the section load calculation unit 110 predicts a section load of a job scheduled date and time, and calculates a section load of the manual switch using the section load.
Specifically, the section load calculation unit 110 predicts the section load of a predetermined job date and time based on statistical data. The statistical data includes historical load by season, historical load by day and night, historical load by weather conditions, and historical load by time.
The section load calculation unit 110 calculates a section load of the manual switch based on the statistical data integrated floating magnification;
for example, selecting a historical load in the same time period and the same season as a basis, wherein the weather of the historical load is sunny, and the date of the scheduled operation date and time is cloudy, the floating multiplying power is greater than that, and the floating multiplying power can be set to be 1.2;
for example, selecting a historical load of the same time period, the same season and the same weather as a base, and taking temperature as a variable, wherein T is the temperature of the historical load, and T is the temperature of the scheduled date and time of the operation, and floating multiplying power = | (T-30)/(T-30) + (T-10)/(T-10) |;
the power outage operation section setting unit 120 is configured to set the power outage operation section as a minimum section including the manual switch in the distribution line.
The power outage operation section setting unit 120 sets a distribution line power outage operation section in the power system single line diagram. The power outage operation section is set as a minimum operation section designated to include the manual switching device, and when a specific section of the designated line is the power outage operation section, the searched line information is displayed on a screen for displaying a single line diagram of the power system. The line information displayed on the screen may include an ID of the blackout operation section, a line name, a power source side switching device and a load side switching device of the blackout operation section.
The spare line setting unit 130 is used to determine a spare line in the blackout operation section.
The backup line setting unit searches for a backup line for transferring a load from the information of the blackout section by using the information on the blackout work section.
One or more spare lines are determined according to the priority when the spare lines are searched. Further, a backup line is automatically selected from the determined one or more backup lines, or a backup line may be selected by the power operation and maintenance personnel.
For example, in the first priority, the spare line setting unit 130 searches for a spare line in the power supply ring network where the operation section is located;
in the second priority, the spare line setting unit 130 searches for a spare line that does not need to transfer the entire load in a line other than the power supply ring network where the operation section is located.
In the third priority, the spare line setting unit 130 searches for a spare line for transferring the entire load in a line other than the power supply ring network where the operation section is located.
The workflow setting unit 140 determines a work step for the blackout work section.
The method of determining the operation steps may take into account the efficiency of the line operation. Specifically, the workflow setting unit 140 determines an optimal workflow with three criteria of minimizing the number of operations, load averaging, or load minimization.
The job steps may also be set by setting different weights for the three criteria described above.
Further, the workflow setting unit 140 is also configured to join the operation of manual switching in a case where the operation of the device fails in the derived job step. And the reduction operation steps are carried out in the reverse order after the work is finished.
First, the load in the power outage operation interval is calculated. Thereafter, it is determined whether there is a spare line for the blackout work section including the transmission section, and if there is a spare line, it is necessary to determine whether there is an overload. If there is no spare line or overload, it is determined that transmission is not possible, and the operation is terminated. If there is a spare line and there is no overload, the restoration job step is calculated.
The switching device is connected to the spare line.
If the circuit breaker trips, the operation is manually switched. If the circuit breaker is not tripped, the load side switching device is opened during the power outage. And when the opening of the load side switch cabinet in the power failure operation interval is normally ended, the power side switch cabinet in the power failure operation interval is opened, and if the opening is not normally ended, the operation is manually switched. When the power supply side switch equipment in the power failure interval is normally turned on and ended, the operation is ended, and if the power supply side switch equipment is not normally ended, the operation is manually switched;
the simulation execution unit 150 performs simulation according to the determined job step. The simulation execution unit 150 may display the execution result (success or failure) on the screen, and may be individually executed for each of the job steps.
The operation sheet generation unit 160 generates an operation sheet by reflecting the simulation result in the determined job step. In addition, the operation sheet generation unit 160 provides the electric power operation and maintenance personnel with a function of additionally editing the working details of the generated operation sheet.
As shown in fig. 5, a power distribution method of an intelligent power distribution system is provided based on the above intelligent power distribution system, and includes the following steps:
in step S1, the section load calculation unit 110 predicts the section load of the predetermined job date and time;
step S2, the section load calculation unit 110 calculates the section load of the manual switch using the predicted section load of the predetermined work date and time;
step S3, the power outage operation interval setting unit 120 sets a power outage operation interval of the distribution line including the manual switch;
step S4, the workflow setting unit 140 determines the operation step of the power outage operation section;
step S5, the simulation execution unit 150 performs simulation using the determined job step;
the result of the simulation by the simulation execution unit 150 is fed back to the workflow setting unit 140, and the simulation execution unit 150 performs the simulation again after the workflow setting unit 140 modifies the operation steps of the power outage operation interval based on the result of the simulation by the simulation execution unit 150;
in step S6, the operation-order generating unit 160 composes an operation order by the job step and the simulation result.
The generated operation order is manually or automatically executed by the electric power operation and maintenance personnel on the distribution automation server 230. The execution result may be collected and displayed to the electric power operation and maintenance personnel through the user terminal 500.
Since the general residential power is generally switched by intelligent power supply in order to maintain stability, the intelligent power distribution system of the present invention is mainly applied to power grids for municipal use, etc., and the road illumination power supply in the prior art has the following problems, and the illumination lamp 500 installed on the road in the suburb, etc. with little traffic flow has the problem of low utilization rate, resulting in waste of electric energy, as shown in fig. 6,
the distribution automation system 200 further comprises a road illumination control server 260, the road illumination control server 260 is connected with an image acquisition unit 600, the image acquisition unit 600 is used for shooting images of vehicles on the road under the illuminating lamp 500, the road illumination control server 260 comprises a vehicle tracking unit, the vehicle tracking unit is connected with a vehicle tracking database 270, the vehicle tracking database 270 is used for storing a traffic road map, and the traffic road map comprises a plurality of road sections and intersections formed by crossing the road sections;
the image acquisition unit 600 is arranged on the illuminating lamp 500 at the intersection position of the traffic road map;
in the embodiment of the present invention, the image capturing unit 600 may employ various cameras or cameras;
the vehicle tracking unit is used for tracking the driving route of the vehicle, and the tracking of the vehicle tracking unit comprises the following steps:
selecting an image acquisition unit 600 for shooting an image of a vehicle as a starting point image acquisition unit, and taking the vehicle as a tracking target;
and judging the driving direction of the tracking target according to the image of the vehicle shot by the starting point image acquisition unit, further judging the road section which the tracking target possibly enters, and sending a control instruction to the illuminating lamp 500 on the road section which the tracking target possibly enters to control the illuminating lamp 500 to be turned on. The turn-on operation is not repeated if the illumination lamp 500 on the section of road that is likely to be driven into has been turned on.
Selecting the image acquisition unit 600 of the illuminating lamp 500 for tracking the intersection of the road section terminal where the target is likely to enter as a terminal image acquisition unit, selecting the terminal image acquisition unit which shoots the same image of the vehicle as the image of the vehicle shot by the starting point image acquisition unit as a new starting point image acquisition unit, and terminating the tracking until no new starting point image acquisition unit exists;
the method for judging whether the image of the vehicle shot by the end point image acquisition unit is the same as the image of the vehicle shot by the starting point image acquisition unit comprises the following steps:
and carrying out image similarity calculation on the image of the vehicle shot by the end point image acquisition unit and the image of the vehicle shot by the starting point image acquisition unit, if the image similarity exceeds a set threshold value, judging that the image of the vehicle shot by the end point image acquisition unit is the same as the image of the vehicle shot by the starting point image acquisition unit, and otherwise, judging that the images are different.
There may be a case where the starting point image capturing unit captures images of a plurality of vehicles at the same time, and tracks the plurality of vehicles as tracking targets, respectively.
When the driving direction of the tracked target is more than two, more than two road sections which can be driven in exist, the image acquisition unit 600 of the illuminating lamp 500 of the intersection of the end points of all the road sections which can be driven in by the tracked target is used as an end point image acquisition unit, and an end point image acquisition unit which can be used as a new start point image acquisition unit is selected from the image acquisition units.
As shown in fig. 7, the driving direction of the vehicle is judged to be straight according to the head position of the vehicle in the image of the vehicle captured by the starting point image capturing unit and the indication line on the road, and the vehicle may enter the B-section road 802 from the a-section road 801;
as shown in fig. 8, it is determined that the driving direction of the vehicle is a left turn according to the head position of the vehicle in the image of the vehicle captured by the starting point image capturing unit and the indication line on the road, and the vehicle may enter the C-segment road 803;
as shown in fig. 9, it is determined that the driving direction of the vehicle is straight and turning right according to the head position of the vehicle in the image of the vehicle captured by the starting point image capturing unit and the indication line on the road, and the vehicle may enter a B-section road 802 and a D-section road 804;
for a section where the illumination lamp 500 is already turned on, if the image capturing units 600 at both ends of the section do not capture images of the vehicle after a certain period of time, the illumination lamp 500 on the section is turned off.
The road illumination control server 260 controls the on/off of the illumination lamp 500 so as to predict the traveling route of the vehicle, thereby reducing the waste of electric power of the illumination lamp 500 on the road in an area with a small traffic flow.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present embodiment or portions thereof contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (e.g. a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method of the embodiments.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
The embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention and the protection scope of the claims.
Claims (10)
1. The intelligent power distribution system is characterized by comprising a power failure operation examination management server, a power distribution automation system and a power distribution automation communication network, wherein the power distribution automation system is connected to equipment on the power distribution network through the power distribution automation communication network, information is transmitted and received between the power distribution automation system and the equipment of the power distribution network through the power distribution automation communication network, the power distribution automation system comprises a substation operation server and a power distribution automation server, the substation operation server and the power distribution automation server are connected with a substation operation information database, a power distribution system connection information database and a section load database, and the substation operation server comprises a substation automation system for executing the operation of substation facilities;
the distribution automation server sends a control instruction to distribution line terminal equipment and distribution line switch equipment through a distribution automation communication network;
the distribution automation server comprises a distribution automation main server used for sending control instructions to distribution line terminal equipment and distribution line switch equipment, and a distribution automation historical server used for storing distribution system information and historical information;
the transformer substation operation information database stores and manages transformer substation load information, transformer substation system information and transformer substation breaker operation information;
the power distribution system connection information database stores and manages power distribution system connection line information and transformer capacity information;
the section load database stores and manages load current information of the automatic switch equipment, load current information per hour, maximum load information, minimum load information and average load information;
the power failure operation examination management server comprises an interval load calculation unit, a power failure operation interval setting unit, a standby line setting unit, a workflow setting unit, a simulation execution unit and an operation list generation unit, wherein,
the section load calculation unit is used for predicting the section load of the scheduled date and time of the operation;
the power failure operation interval setting unit is used for setting a power failure operation interval as a minimum interval containing a manual switch in the distribution line;
the standby line setting unit is used for determining a standby line in a power failure operation interval;
the work flow setting unit determines an operation step for a power failure operation interval;
the simulation execution unit performs simulation according to the determined operation steps;
the operation sheet generation unit generates an operation sheet by reflecting the simulation result in the determined job step.
2. The intelligent power distribution system of claim 1, further comprising a user terminal connected to the blackout operation audit management server and providing a user with an interface for system monitoring and control.
3. The intelligent power distribution system according to claim 1, wherein the section load calculation unit predicts a section load of a predetermined operation date and time based on statistical data including a historical load by season, a historical load by weather condition, and a historical load by time.
4. The intelligent power distribution system according to claim 1, wherein the section load calculation unit calculates a section load of the manual switch based on a statistical data integrated floating rate.
5. The intelligent power distribution system according to claim 4, wherein a historical load of the same period, the same season and the same weather is selected as a base, and the floating multiplying power = | (T-30)/(T-30) + (T-10)/(T-10) |, wherein T is the temperature of the historical load, and T is the temperature of the scheduled date and time of the operation, takes the temperature as a variable.
6. The intelligent power distribution system according to claim 1, wherein the blackout operation section setting unit sets a distribution line blackout operation section in a power system single line diagram.
7. The intelligent power distribution system according to claim 1, wherein the backup line setting unit searches for a backup line for transferring a load based on information of a power outage section, determines one or more backup lines, and automatically selects one backup line from the determined one or more backup lines.
8. The intelligent power distribution system according to claim 7, wherein the backup line setting unit searches for a backup line for transferring a load according to information of a blackout section and a set priority;
the standby line setting unit searches a standby line in a power supply ring network where an operation interval is located;
the standby line setting unit searches for a standby line which does not need to transfer the whole load in a line outside the power supply ring network where the operation interval is located;
and in the third priority, the standby line setting unit searches for a standby line for transferring the whole load in a line outside the power supply ring network where the operation interval is located.
9. The intelligent power distribution system according to claim 1, wherein the power distribution automation system further comprises a road illumination control server, the road illumination control server is connected with an image acquisition unit, the image acquisition unit is used for shooting images of vehicles on a road under an illuminating lamp, the road illumination control server comprises a vehicle tracking unit, the vehicle tracking unit is connected with a vehicle tracking database, the vehicle tracking database is used for storing a traffic road map, and the traffic road map comprises a plurality of road sections and intersections formed by crossing of the road sections;
the vehicle tracking unit is used for tracking the driving route of the vehicle, and the tracking of the vehicle tracking unit comprises the following steps:
selecting an image acquisition unit for shooting an image of a vehicle as a starting point image acquisition unit, and taking the vehicle as a tracking target;
judging the driving direction of the tracking target according to the image of the vehicle shot by the starting point image acquisition unit, further judging the road section which the tracking target possibly enters, and sending a control instruction to an illuminating lamp on the road section which the tracking target possibly enters to control the illuminating lamp to be turned on;
selecting an image acquisition unit of an illuminating lamp of an intersection of a road section terminal point where a tracking target is likely to enter as a terminal point image acquisition unit, selecting a terminal point image acquisition unit which shoots an image of a vehicle identical to an image of the vehicle shot by a starting point image acquisition unit as a new starting point image acquisition unit, and terminating tracking until no new starting point image acquisition unit exists;
the method for judging whether the image of the vehicle shot by the end point image acquisition unit is the same as the image of the vehicle shot by the starting point image acquisition unit comprises the following steps:
and carrying out image similarity calculation on the image of the vehicle shot by the end point image acquisition unit and the image of the vehicle shot by the starting point image acquisition unit, if the image similarity exceeds a set threshold value, judging that the image of the vehicle shot by the end point image acquisition unit is the same as the image of the vehicle shot by the starting point image acquisition unit, and otherwise, judging that the images are different.
10. The power distribution method of the intelligent power distribution system according to any one of claims 1 to 9, comprising the steps of:
step S1, the section load calculation unit predicts a section load of a predetermined job date and time;
step S2, the section load calculation unit calculates the section load of the manual switch using the predicted section load of the predetermined operation date and time;
step S3, the power failure operation interval setting unit sets the power failure operation interval of the distribution line comprising the manual switch;
step S4, the work flow setting unit determines the power failure work section;
step S5, the simulation execution unit uses the determined operation steps to carry out simulation;
in step S6, the operation sheet generation unit composes an operation sheet by the job step and the simulation result.
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