CN115800270B - Power distribution network power and communication coordination recovery method and device - Google Patents
Power distribution network power and communication coordination recovery method and device Download PDFInfo
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- CN115800270B CN115800270B CN202310043251.7A CN202310043251A CN115800270B CN 115800270 B CN115800270 B CN 115800270B CN 202310043251 A CN202310043251 A CN 202310043251A CN 115800270 B CN115800270 B CN 115800270B
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Abstract
The invention discloses a method and a device for coordinating and recovering power and communication of a power distribution network, wherein the method comprises the following steps: dividing the area to be restored into a plurality of first-stage areas to be restored and second-stage areas to be restored; taking a first-level to-be-recovered area where a fault base station is located as an emergency communication recovery area, and determining all emergency communication recovery areas where the fault base station is located; according to the electric power parameters of the secondary areas to be recovered and the communication parameters of the emergency communication recovery areas, calculating recovery returns of fault base stations in each emergency communication recovery area, and recovering communication faults of the emergency communication recovery areas according to the order of the recovery returns from large to small; taking the power supply of the important load level area recovered quickly as a total target, and constructing a power communication double-layer optimization model of the area to be recovered; and solving the power communication double-layer optimization model by utilizing a depth-first traversal path search algorithm, and determining a final repair scheme. By adopting the embodiment of the invention, the rush-repair time of the distribution network after disaster can be greatly shortened, and the power failure loss of the distribution network can be reduced.
Description
Technical Field
The invention relates to the technical field of power distribution network fault recovery, in particular to a power distribution network power and communication coordination recovery method and device.
Background
In recent years, extreme natural disasters frequently happen, large-scale external damage causes successive disconnection of power transmission and distribution lines and communication lines, power and communication networks are damaged to a large extent, large-scale power failure and communication interruption of disaster areas are caused, and finally, the production and life of people are influenced, so that the repair and recovery work of a power distribution network is required to be quickened.
However, the existing repair recovery research on the power distribution network does not consider the influence of the communication network, in fact, the fault recovery of the power distribution network depends on the positioning and isolation of the communication network to the power faults, when the communication is interrupted, the dispatching automation breaks down, and a command center cannot acquire the fault information of the power distribution network in time, so that the fault repair recovery work of the power distribution network, which is not very serious in the original power faults, is seriously lagged.
Disclosure of Invention
The invention provides a power distribution network power and communication coordination recovery method and device, which can coordinate and consider the fault recovery of a power side and a communication side, greatly shorten the rush-repair time of a power distribution network after disaster and reduce the power failure loss of the power distribution network.
In order to achieve the above object, an embodiment of the present invention provides a method for coordinating and recovering power and communication in a power distribution network, including:
dividing the to-be-restored area into a plurality of primary to-be-restored areas and secondary to-be-restored areas according to the distribution conditions of the base stations and the power distribution terminals in the to-be-restored area; each first-level area to be restored comprises a plurality of second-level areas to be restored;
Taking a first-level to-be-recovered area where a fault base station is located as an emergency communication recovery area, and determining all emergency communication recovery areas where the fault base station is located; wherein, the fault base station is a base station with communication fault;
according to the electric power parameters of the secondary areas to be recovered and the communication parameters of the emergency communication recovery areas, calculating recovery returns of fault base stations in each emergency communication recovery area, and recovering communication faults of the emergency communication recovery areas according to the sequence of the recovery returns from high to low so as to enable part of areas of the emergency communication recovery areas to be subjected to fault recovery through a power distribution network self-recovery method;
taking the power supply of the important load level area recovered quickly as a total target, and constructing a power communication double-layer optimization model of the area to be recovered;
and solving the power communication double-layer optimization model by utilizing a depth-first traversal path search algorithm, and determining a final restoration scheme so as to restore the communication faults and the power faults of the primary to-be-restored area and the secondary to-be-restored area one by one according to the restoration scheme.
As an improvement of the above solution, dividing the to-be-restored area into a plurality of primary to-be-restored areas and secondary to-be-restored areas according to distribution conditions of the base stations and the power distribution terminals in the to-be-restored area, including:
Dividing the area to be restored into a plurality of primary areas to be restored according to the distribution condition of the base stations in the area to be restored;
and dividing each first-stage to-be-restored area into a plurality of second-stage to-be-restored areas according to the distribution condition of the power distribution terminals in the first-stage to-be-restored areas.
As an improvement of the above solution, the calculating a recovery report of the faulty base station in each emergency communication recovery area according to the power parameter of the secondary to-be-recovered area and the communication parameter of the emergency communication recovery area includes:
calculating the sub-load loss rate of each secondary to-be-recovered area according to the load quantity before and after the power failure of each secondary to-be-recovered area in the emergency communication recovery area:
adding the sub-load loss rates to obtain a total load loss rate in the emergency communication recovery area;
calculating the sub-load priority of each secondary area to be restored according to the sub-load priority index of each secondary area to be restored in the emergency communication restoration area;
taking the largest sub-load priority as the total load priority in the emergency communication recovery area;
acquiring an initial radiation radius of a fault base station in the emergency communication recovery area before communication faults occur;
And adding the total load loss rate, the total load priority and the initial radiation radius according to weights to obtain recovery returns of the fault base stations in the emergency communication recovery area.
As an improvement of the above solution, the calculating the sub-load priority of each secondary to-be-restored area according to the sub-load priority index of each secondary to-be-restored area in the emergency communication restoration area includes:
acquiring a sub-load priority index of each secondary to-be-restored area in the emergency communication restoration area; wherein the sub-load priority index comprises: the power consumption demand, the power consumption priority, the power quality requirement, the population number and the power supply recovery success rate;
carrying out standardization processing on each sub-load priority index to obtain a standard value of each sub-load priority index;
and adding all the standard values according to the weight, and calculating the sub-load priority of the secondary area to be restored.
As an improvement of the above solution, the recovering the communication failure of the emergency communication recovery area in order of the recovery rewards from large to small includes:
determining all normal base stations; wherein, the normal base station is a base station for normal communication;
According to the distance between the fault base station and each normal base station, determining the normal base station closest to the fault base station, and taking the normal base station as a first normal base station;
according to the distance between the first normal base station and each normal base station, determining the normal base station closest to the first normal base station, and taking the normal base station as a second normal base station;
calculating the radiation radius required by the first normal base station according to the distance between the first normal base station and the fault base station and the second normal base station respectively;
and lifting the transmitting power of the first normal base station corresponding to the fault base station according to the order of the recovery return from large to small, so that the radiation radius of the first normal base station after the lifting of the transmitting power is enlarged to the required radiation radius.
As an improvement of the above solution, the calculating the radiation radius required by the first normal base station according to the distances between the first normal base station and the faulty base station and the second normal base station, respectively, includes:
the distance between the first normal base station and the fault base station is recorded as a first distance, and the distance between the first normal base station and the second normal base station is recorded as a second distance;
Adding the first distance to the initial radiation radius before the communication failure of the failed base station to obtain a third distance;
when the third distance is smaller than the second distance, the radiation radius required by the first normal base station is the average value of the third distance and the second distance;
and when the third distance is greater than or equal to the second distance, the radiation radius required by the first normal base station is the third distance.
As an improvement of the scheme, the power supply of the important load level area is quickly restored as a total target, and a power communication double-layer optimization model of the area to be restored is constructed:
communication side recovery takes maximum communication force of all fault base stations as objective functionF 1 ；
Wherein, the communication forces of all the faulty base stations are calculated by the following steps:
base station with fault
Total number of radiated distribution terminals +.>
Dividing by the total number of distribution terminals of the area to be restored>
Multiplying the obtained quotient by a preset first weight coefficient to obtain a faulty base station +.>
Is a first communication force of (a);
base station with fault
Initial radiation radius before communication failure>
Multiplying the base station with a preset second weight coefficient to obtain the fault base station +.>
Is a second communication force of (a);
Adding the first communication force and the second communication force to obtain a fault base station
Is a communication force of (a);
each faulty base station
The communication forces of all the fault base stations are obtained by adding the communication forces of all the fault base stations;
wherein the first weight coefficient and the second weight coefficient have the following constraint:
the first weight coefficient is greater than or equal to 0 and less than or equal to the second weight coefficient;
the second weight coefficient is smaller than or equal to 1;
the first weight coefficient and the second weight coefficient are added to be equal to 1.
As an improvement of the above solution, the constructing the power communication double-layer optimization model of the to-be-restored area with the power supply of the fast-restoration important load level area as a total target further includes:
power side recovery is based on the minimum influence of failure loss of all secondary areas to be recoveredF 2 ；
The second-level to-be-restored area which is not fully recovered is the second-level to-be-restored area which is still unable to be fully recovered after the communication of the emergency communication restoration area is temporarily restored;
and calculating the fault loss of all the two-stage areas to be recovered which are not recovered by the following steps:
prioritizing the sub-load of the incompletely restored second-level region to be restored 
Sub-load deficit rate with the incompletely restored secondary region ≡>
Multiplying to obtain the fault loss of the secondary to-be-recovered area which is not completely recovered;
calculating the total power failure time of the secondary to-be-restored area which is not fully restored
Integration of the failure deficit of the second-level to-be-restored region in the non-restored region;
adding the integral of each fault loss to obtain the fault loss of all the two-stage areas to be recovered which are not fully recovered;
wherein each of the two-stage to-be-restored areas which are not fully restored has the following constraint:
in the method, in the process of the invention,
representing a continuous logical OR operation, ">
Indicating whether or not incompletely restored secondary areas are allocated to a maintenance teampIf yes, then->
Otherwise->
，/>
The total number of the secondary areas to be restored which are not fully restored;
communication side recovery with minimum maintenance cost of all faulty base stations as objective functionF 3 ；
The maintenance cost of all the fault base stations is calculated through the following steps:
base station to be maintained for faults
Time spent->
And malfunction base station->
Is damaged by disaster>
Multiplying to obtain fault base station->
Is a maintenance cost of the (a);
each faulty base station
Adding the maintenance costs of all the fault base stations to obtain the maintenance costs of all the fault base stations;
The recovery of the power side and the communication side takes the maintenance speed of the power distribution network fault as the fastest objective functionF 4 ：
Wherein maxV p For maintenance teamspThe fastest rate at which the maintenance tasks are completed,Min order to maintain the total number of teams,V p for maintenance teamspThe speed at which maintenance tasks are completed;
wherein the maintenance team is calculated by the steps ofpSpeed of completion of maintenance tasksV p ；
Will repair the grouppCompletion of incompletely restored second in maintenance task volumeTime required for power restoration of a stage to-be-restored areat ep Maintenance teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp And maintenance teampReaching the primary to-be-restored area, the incompletely restored secondary to-be-restored area, and the time taken to move within the incompletely restored secondary to-be-restored areat dp Adding to obtain maintenance teampTotal time to complete maintenance tasks;
will be assigned to maintenance teamspIs to be maintainedA p Divided by maintenance teampObtaining maintenance teams for total time within the completion of maintenance taskspSpeed of completion of maintenance tasksV p ；
Wherein, the maintenance teampThe time required for completing the power restoration of the secondary to-be-restored area which is not fully restored has the following constraint:
maintenance team pThe total time required for completing the power restoration of all the secondary areas to be restored, which are not fully restored, is greater than or equal to 0 and less than or equal to the maintenance teampTime required for completing power restoration of secondary to-be-restored area which is not fully restored in maintenance task amountt ep ；
Maintenance teampThe total time spent for completing the repair of the faulty base station of all the primary areas to be restored is greater than or equal to 0 and less than or equal to the repair teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp 。
As an improvement of the above solution, the solving the power communication double-layer optimization model by using a path search algorithm of depth-first traversal, and determining a final repair solution, so as to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair solution, including:
solving the communication force of all fault base stations in each repairing scheme, the fault loss of all secondary areas to be recovered which are not completely recovered, the maintenance cost of all fault base stations and the maintenance speed of the power distribution network faults;
finding an objective function with a depth-first traversal search algorithmF 1 Maximum scheme sum and objective function F 1 Schemes with differences of maximum values within a preset first range form a scheme setA；
Finding an objective function with a depth-first traversal search algorithmF 2 Minimum scheme and objective functionF 2 Schemes with the minimum value difference value within a preset second range form a scheme setB；
Finding an objective function with a depth-first traversal search algorithmF 3 Maximum scheme sum and objective functionF 3 Schemes with maximum difference value within a preset third range form a scheme setC；
Finding an objective function with a depth-first traversal search algorithmF 4 Minimum scheme sum and objective functionF 4 Schemes with the minimum value difference value within a preset fourth range form a scheme setD；
Selection scheme set
Target function of (b)F 4 And the maximum value scheme is used as a final repair scheme to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme.
To achieve the above object, an embodiment of the present invention further provides a power distribution network power and communication coordination recovery device, including:
the regional division module is used for dividing the region to be restored into a plurality of primary regions to be restored and secondary regions to be restored according to the distribution conditions of the base stations and the power distribution terminals in the region to be restored; each first-level area to be restored comprises a plurality of second-level areas to be restored;
The fault base station determining module is used for taking a primary to-be-recovered area where the fault base station is located as an emergency communication recovery area and determining all emergency communication recovery areas where the fault base station is located; wherein, the fault base station is a base station with communication fault;
the emergency communication recovery module is used for calculating recovery returns of fault base stations in each emergency communication recovery area according to the electric power parameters of the secondary areas to be recovered and the communication parameters of the emergency communication recovery areas, and recovering communication faults of the emergency communication recovery areas according to the order of the recovery returns from large to small so as to enable part of areas of the emergency communication recovery areas to be subjected to fault recovery through a power distribution network self-recovery method;
the model construction module is used for constructing a power communication double-layer optimization model of the region to be recovered by taking the power supply of the region with the important load level recovered quickly as a total target;
and the restoration scheme determining module is used for solving the electric power communication double-layer optimization model by utilizing a depth-first traversal path searching algorithm, and determining a final restoration scheme so as to restore the communication faults and the electric power faults of the primary area to be restored and the secondary area to be restored one by one according to the restoration scheme.
Compared with the prior art, the power and communication coordination recovery method and device for the power distribution network provided by the embodiment of the invention sequentially recover the important first-stage communication faults of the area to be recovered according to the order of the recovery return, so that the power supply of the partial area is recovered through the self-recovery of the power distribution network, the time and the cost required by the whole power supply recovery are saved, further, the fault recovery of the power side and the communication side is coordinated and considered by constructing the power communication double-layer optimization model of the area to be recovered, the fault recovery is carried out according to the final recovery scheme obtained by solving the power communication double-layer optimization model, the power distribution network fault can be recovered timely and effectively, the rush-repair time of the power distribution network after disaster is greatly shortened, and the power failure loss of the power distribution network is reduced.
Drawings
Fig. 1 is a flowchart of a method for coordinating and recovering power and communication of a power distribution network according to an embodiment of the present invention;
fig. 2 is a block diagram of a power distribution network power and communication coordination recovery device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, fig. 1 is a flowchart of a power distribution network power and communication coordination recovery method provided by an embodiment of the present invention, where the power distribution network power and communication coordination recovery method includes:
s1, dividing a to-be-restored area into a plurality of first-stage to-be-restored areas and second-stage to-be-restored areas according to distribution conditions of base stations and power distribution terminals in the to-be-restored areas; each first-level area to be restored comprises a plurality of second-level areas to be restored;
s2, taking a first-level to-be-recovered area where a fault base station is located as an emergency communication recovery area, and determining all emergency communication recovery areas where the fault base station is located; wherein, the fault base station is a base station with communication fault;
s3, calculating recovery returns of fault base stations in each emergency communication recovery area according to the electric power parameters of the secondary areas to be recovered and the communication parameters of the emergency communication recovery areas, and recovering communication faults of the emergency communication recovery areas according to the order of the recovery returns from large to small so that part of areas of the emergency communication recovery areas are subjected to fault recovery through a power distribution network self-recovery method;
s4, constructing a power communication double-layer optimization model of the region to be restored by taking the power supply of the region with the important load level of quick restoration as a total target;
And S5, solving the electric power communication double-layer optimization model by utilizing a depth-first traversal path search algorithm, and determining a final restoration scheme so as to restore the communication faults and the electric power faults of the primary to-be-restored area and the secondary to-be-restored area one by one according to the restoration scheme.
In an optional embodiment, in step S1, according to the distribution situation of the base station and the power distribution terminal in the to-be-restored area, the to-be-restored area is divided into a plurality of primary to-be-restored areas and secondary to-be-restored areas, including:
dividing the area to be restored into a plurality of primary areas to be restored according to the distribution condition of the base stations in the area to be restored;
and dividing each first-stage to-be-restored area into a plurality of second-stage to-be-restored areas according to the distribution condition of the power distribution terminals in the first-stage to-be-restored areas.
The coordinates are constructed by taking the central processing unit as the center, the primary to-be-recovered areas are divided by the distribution condition of the base stations, and the primary to-be-recovered areas are divided by taking the radiation radius of the base stations as the boundary
Wherein->
For the number of the base station>
For base station->
The geographic coordinates of each base station are realized by a GPS (global positioning system) locator arranged on the base station, and the base station in the embodiment of the invention can be a 5G base station; a base station corresponds to a plurality of power distribution terminals (STUs), a secondary area to be recovered is divided according to distribution conditions of the power distribution terminals which can be radiated by the base station in the primary area to be recovered on the basis of the primary area to be recovered, specifically, a physical switch node under the power distribution terminals is taken as a boundary, and the secondary area to be recovered is selected on the basis of equally dividing the number of switches under each power distribution terminal >
Boundary switch of (1), wherein->
For base station->
Is a number of the distribution terminal within the signal radiation range.
It can be understood that in step S2, the base station monitoring data is reported by the base station fault monitoring unit, the base station fault monitoring unit determines whether the base station has a communication fault by monitoring whether the primary to-be-recovered area has communication signal coverage, and further, the central processing unit determines the primary to-be-recovered area set a=where all the faulty base stations are located through the fault information reported by the base station fault monitoring unit
First-order region set to be restored b= for normal communication>
Then fail base station->
The first-level to-be-recovered area is the emergency communication recovery area>
Normal base station->
The primary area to be restored is->
。
In an optional embodiment, step S3 of calculating a recovery report of the faulty base station in each emergency communication recovery area according to the power parameter of the secondary to-be-recovered area and the communication parameter of the emergency communication recovery area includes:
calculating the sub-load loss rate of each secondary to-be-recovered area according to the load quantity before and after the power failure of each secondary to-be-recovered area in the emergency communication recovery area:
Adding the sub-load loss rates to obtain a total load loss rate in the emergency communication recovery area;
calculating the sub-load priority of each secondary area to be restored according to the sub-load priority index of each secondary area to be restored in the emergency communication restoration area;
taking the largest sub-load priority as the total load priority in the emergency communication recovery area;
acquiring an initial radiation radius of a fault base station in the emergency communication recovery area before communication faults occur;
and adding the total load loss rate, the total load priority and the initial radiation radius according to weights to obtain recovery returns of the fault base stations in the emergency communication recovery area.
It will be appreciated that the sub-load priority represents the load level of the secondary zone to be restored, and the total load priority represents the load level of the emergency communication restoration zone, the greater the value, the higher the load level, the more important the zone. According to the embodiment of the invention, the recovery returns of the fault base stations are more objectively evaluated according to the power factors and the communication factors of the emergency communication recovery areas, comprehensive factors consider the recovery returns of the fault base stations, and the communication of the emergency communication recovery areas is temporarily recovered one by one according to the descending order of the recovery returns, so that part of the areas of the emergency communication recovery areas can be recovered by a power distribution network self-recovery method.
In an optional embodiment, the calculating the sub-load loss rate of each secondary to-be-restored area according to the load amount before and after the power failure of each secondary to-be-restored area in the emergency communication restoration area includes:
for each secondary to-be-restored area within the emergency communication restoration area:
load quantity before failure of the secondary area to be recovered
Subtracting the load before the failure of the secondary recovery area +.>
Dividing the result of the second level zone to be restored by the load before the failure>
Multiplying by 100% to obtain the subload loss rate of the secondary recovery area->
。
In an optional embodiment, the calculating the sub-load priority of each secondary to-be-restored area according to the sub-load priority index of each secondary to-be-restored area in the emergency communication restoration area includes:
acquiring a sub-load priority index of each secondary to-be-restored area in the emergency communication restoration area; wherein the sub-load priority index comprises: the power consumption demand, the power consumption priority, the power quality requirement, the population number and the power supply recovery success rate;
carrying out standardization processing on each sub-load priority index to obtain a standard value of each sub-load priority index;
And adding all the standard values according to the weight, and calculating the sub-load priority of the secondary area to be restored.
Illustratively, for each of the secondary to-be-restored areas within the emergency communication restoration area: firstly, acquiring electricity consumption demand, electricity utilization priority, electric energy quality requirement, resident number and power supply recovery success rate; wherein, a preset third weight coefficient is used for
A result of multiplying the historical failure rate of the secondary area to be recovered and a preset fourth weight coefficient +.>
Adding the result of multiplying the loss degree caused by the failure of the secondary area to be recovered to obtain the reciprocal of the power supply recovery success rate, and then according to the power supplyThe reciprocal of the electricity recovery success rate is calculated to obtain the electricity recovery success rate; then, the electricity consumption demand, the electricity priority, the electricity quality requirement, the resident number and the power supply recovery success rate are respectively subjected to standardized processing to obtain a standard value of the electricity consumption demand, a standard value of the electricity priority, a standard value of the electricity quality requirement, a standard value of the resident number and a standard value of the power supply recovery success rate; and finally, adding the standard value of the electricity consumption, the standard value of the electricity priority, the standard value of the electric energy quality requirement, the standard value of the resident number and the standard value of the power supply recovery success rate according to weights respectively to obtain the sub-load priority of the secondary area to be recovered.
In an optional embodiment, the adding the total load loss rate, the total load priority and the initial radius of radiation according to weights to obtain recovery returns of the faulty base stations in the emergency communication recovery area includes:
will preset the fifth weight coefficient
A result of multiplication with said total load deficit rate, a preset sixth weight coefficient +.>
A result of multiplication with the total load priority and a preset seventh weight coefficient +.>
Adding the result of the addition of the initial radiation radius to obtain recovery returns of the fault base stations in the emergency communication recovery area; wherein, the liquid crystal display device comprises a liquid crystal display device,
，/>
。
in an optional embodiment, the recovering the communication failure of the emergency communication recovery area in the order of from the big to the small in the recovery report in step S3 includes:
determining all normal base stations; wherein, the normal base station is a base station for normal communication;
according to the distance between the fault base station and each normal base station, determining the normal base station closest to the fault base station, and taking the normal base station as a first normal base station;
according to the distance between the first normal base station and each normal base station, determining the normal base station closest to the first normal base station, and taking the normal base station as a second normal base station;
Calculating the radiation radius required by the first normal base station according to the distance between the first normal base station and the fault base station and the second normal base station respectively;
and lifting the transmitting power of the first normal base station corresponding to the fault base station according to the order of the recovery return from large to small, so that the radiation radius of the first normal base station after the lifting of the transmitting power is enlarged to the required radiation radius.
In the embodiment of the invention, the fault base station with the largest recovery return is sequentially lifted according to the descending order of the recovery returns
Nearest first normal base station->
To extend its own radiation radius, enabling to temporarily recover the faulty base station +.>
Emergency communication recovery area>
Is a communication of (a). Finally, the maintenance team maintains all the faulty base stations according to the final repair scheme, so that the faulty base stations are +.>
Resetting the faulty base station after resuming normal communication>
Is the initial radiation radius before failure +.>
Reset the first normal base station->
Is the initial radiation radius +.>
。
In an alternative embodiment, the calculating the radiation radius required by the first normal base station according to the distance between the first normal base station and the fault base station and the second normal base station respectively includes:
The distance between the first normal base station and the fault base station is recorded as a first distance, and the distance between the first normal base station and the second normal base station is recorded as a second distance;
adding the first distance to the initial radiation radius before the communication failure of the failed base station to obtain a third distance;
when the third distance is smaller than the second distance, the radiation radius required by the first normal base station is the average value of the third distance and the second distance;
and when the third distance is greater than or equal to the second distance, the radiation radius required by the first normal base station is the third distance.
In one embodiment, the distance between the first normal base station and the failed base station is recorded as a first distance
The distance between the first normal base station and the second normal base station is recorded as a second distance
The first distance +.>
And the institute are connected withInitial radiation radius before communication failure of failure base station
Adding to obtain a third distance->
；
It will be appreciated that since the normal base station extends to cover the original radiation range of the failed base station, the radiation radius required by the normal base station is required
Greater than or equal to the first distance- >
Initial radiation radius before failure of failed base station +.>
And (3) summing. But in order to avoid the waste of energy caused by the overlarge radiation radius +.>
The specific value method of (2) is as follows: />
At a third distance
Less than the second distance->
When the base station is normal, the required radiation radius is +.>
For said third distance->
And said second distance->
Average value of (2);
at a third distance
Greater than or equal to the second distance->
When the base station is normal, the required radiation radius is +.>
For said third distance->
。
In an alternative embodiment, in step S4, the power supply of the important load level area is quickly recovered as a total target, and a power communication double-layer optimization model of the area to be recovered is constructed:
communication side recovery takes maximum communication force of all fault base stations as objective functionF 1 ；
Wherein, the communication forces of all the faulty base stations are calculated by the following steps:
base station with fault
Total number of radiated distribution terminals +.>
Dividing by the total number of distribution terminals of the area to be restored>
Multiplying the obtained quotient by a preset first weight coefficient to obtain a faulty base station +.>
Is a first communication force of (a);
base station with fault
Initial radiation radius before communication failure>
Multiplying the base station with a preset second weight coefficient to obtain the fault base station +.>
Is a second communication force of (a);
Adding the first communication force and the second communication force to obtain a fault base station
Is a communication force of (a);
each faulty base station
The communication forces of all the fault base stations are obtained by adding the communication forces of all the fault base stations;
wherein the first weight coefficient and the second weight coefficient have the following constraint:
the first weight coefficient is greater than or equal to 0 and less than or equal to the second weight coefficient;
the second weight coefficient is smaller than or equal to 1;
the first weight coefficient and the second weight coefficient are added to be equal to 1.
In an optional embodiment, in step S4, the power supply of the area with the important load level of quick recovery is taken as a total target, and the power communication double-layer optimization model of the area to be recovered is constructed, which further includes:
power side recovery is based on the minimum influence of failure loss of all secondary areas to be recoveredF 2 ；
The second-level to-be-restored area which is not fully recovered is the second-level to-be-restored area which is still unable to be fully recovered after the communication of the emergency communication restoration area is temporarily restored;
and calculating the fault loss of all the two-stage areas to be recovered which are not recovered by the following steps:
prioritizing the sub-load of the incompletely restored second-level region to be restored 
Sub-load deficit rate with the incompletely restored secondary region ≡>
Multiplying to obtain the fault loss of the secondary to-be-recovered area which is not completely recovered;
calculating the total power failure time of the secondary to-be-restored area which is not fully restored
Integration of the failure deficit of the second-level to-be-restored region in the non-restored region;
adding the integral of each fault loss to obtain the fault loss of all the two-stage areas to be recovered which are not fully recovered;
wherein each of the two-stage to-be-restored areas which are not fully restored has the following constraint:
in the method, in the process of the invention,
representing a continuous logical OR operation, ">
Indicating whether or not incompletely restored secondary areas are allocated to a maintenance teampIf yes, then->
Otherwise->
，/>
The total number of the secondary areas to be restored which are not fully restored;
communication side recovery with minimum maintenance cost of all faulty base stations as objective functionF 3 ；
The maintenance cost of all the fault base stations is calculated through the following steps:
base station to be maintained for faults
Time spent->
And malfunction base station->
Is damaged by disaster>
Multiplying to obtain fault base station->
Is a maintenance cost of the (a);
each faulty base station
Adding the maintenance costs of all the fault base stations to obtain the maintenance costs of all the fault base stations;
The recovery of the power side and the communication side takes the maintenance speed of the power distribution network fault as the fastest objective functionF 4 ：
Wherein maxV p For maintenance teamspThe fastest rate at which the maintenance tasks are completed,Min order to maintain the total number of teams,V p for maintenance teamspThe speed at which maintenance tasks are completed;
wherein the maintenance team is calculated by the steps ofpSpeed of completion of maintenance tasksV p ；
Will repair the grouppTime required for completing power restoration of secondary to-be-restored area which is not fully restored in maintenance task amountt ep Maintenance teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp And maintenance teampReaching the first-stage to-be-restored area and the second-stage to-be-restored area which is not fully restoredThe time it takes to move within the incompletely restored secondary to-be-restored areat dp Adding to obtain maintenance teampTotal time to complete maintenance tasks;
will be assigned to maintenance teamspIs to be maintainedA p Divided by maintenance teampObtaining maintenance teams for total time within the completion of maintenance taskspSpeed of completion of maintenance tasksV p ；
Wherein, the maintenance teampThe time required for completing the power restoration of the secondary to-be-restored area which is not fully restored has the following constraint:
maintenance team pThe total time required for completing the power restoration of all the secondary areas to be restored, which are not fully restored, is greater than or equal to 0 and less than or equal to the maintenance teampTime required for completing power restoration of secondary to-be-restored area which is not fully restored in maintenance task amountt ep ；
Maintenance teampThe total time spent for completing the repair of the faulty base station of all the primary areas to be restored is greater than or equal to 0 and less than or equal to the repair teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp 。
According to the embodiment of the invention, the power supply of the important load level area is quickly recovered as a total target, the power communication double-layer optimization model of the area to be recovered is constructed, and the power supply of the important load level area can be quickly recovered by a final repair scheme obtained by solving the power communication double-layer optimization model.
In an optional embodiment, the solving the power communication dual-layer optimization model by using the path search algorithm of depth-first traversal in step S5 determines a final repair scheme, so as to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme, including:
Solving the communication force of all fault base stations in each repairing scheme, the fault loss of all secondary areas to be recovered which are not completely recovered, the maintenance cost of all fault base stations and the maintenance speed of the power distribution network faults;
finding an objective function with a depth-first traversal search algorithmF 1 Maximum scheme sum and objective functionF 1 Schemes with differences of maximum values within a preset first range form a scheme setA；
Finding an objective function with a depth-first traversal search algorithmF 2 Minimum scheme and objective functionF 2 Schemes with the minimum value difference value within a preset second range form a scheme setB；
Finding an objective function with a depth-first traversal search algorithmF 3 Maximum scheme sum and objective functionF 3 Schemes with maximum difference value within a preset third range form a scheme setC；
Finding an objective function with a depth-first traversal search algorithmF 4 Minimum scheme sum and objective functionF 4 Schemes with the minimum value difference value within a preset fourth range form a scheme setD；
Selection scheme set
Target function of (b)F 4 And the maximum value scheme is used as a final repair scheme to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme.
It can be appreciated that with the objective functionF 1 The difference between the maximum values is within a preset first range and is an objective functionF 1 Maximum approach scheme, and objective functionF 2 The minimum difference value is within a preset second range and is set as an objective functionF 2 Approach of minimum value approach to objective functionF 3 The difference between the maximum values is within a preset third range and is an objective functionF 3 Maximum approach scheme, and objective functionF 4 The difference of the minimum value is at a preset fourthWithin the range, the scheme is a function of the targetF 4 A minimum approach;
according to the embodiment of the invention, the objective function is solved in sequence through a depth-first traversal search algorithmF 1 Structured set of schemesAObjective functionF 2 Structured set of schemesBObjective functionF 3 Structured set of schemesCObjective functionF 4 Structured set of schemesDThen the schemes are assembled
Target function of (b)F 4 The maximum scheme is used as a final repair scheme, so that a maintenance worker can perform fault maintenance according to the final repair scheme, and power supply of an important load level area can be quickly recovered.
According to the power distribution network power and communication coordination recovery method provided by the embodiment of the invention, the important first-stage communication faults of the area to be recovered are recovered sequentially from large to small according to the recovery return, so that the power supply of the partial area is recovered through the power distribution network self-recovery, the time and the cost required by the whole power supply recovery are saved, furthermore, the fault recovery of the power side and the communication side is coordinated and considered by constructing the power communication double-layer optimization model of the area to be recovered, the fault recovery is carried out according to the final recovery scheme obtained by solving the power communication double-layer optimization model, the power distribution network fault can be recovered timely and effectively, the rush-repair time of the power distribution network after the disaster is shortened greatly, and the power failure loss of the power distribution network is reduced.
Referring to fig. 2, fig. 2 is a block diagram of a coordination and restoration device 10 for power distribution network according to an embodiment of the present invention, where the coordination and restoration device 10 for power distribution network includes:
the zone dividing module 11 is used for dividing the zone to be restored into a plurality of primary zones to be restored and secondary zones to be restored according to the distribution conditions of the base stations and the power distribution terminals in the zone to be restored; each first-level area to be restored comprises a plurality of second-level areas to be restored;
the fault base station determining module 12 is configured to determine all emergency communication recovery areas where the fault base station is located, by using a primary to-be-recovered area where the fault base station is located as an emergency communication recovery area; wherein, the fault base station is a base station with communication fault;
the emergency communication recovery module 13 is configured to calculate recovery returns of the fault base stations in each emergency communication recovery area according to the electric power parameters of the secondary to-be-recovered area and the communication parameters of the emergency communication recovery areas, and recover communication faults of the emergency communication recovery areas according to the order of the recovery returns from high to low, so that a part of areas of the emergency communication recovery areas are subjected to fault recovery through a power distribution network self-recovery method;
The model construction module 14 is used for constructing a power communication double-layer optimization model of the region to be recovered by taking the power supply of the region with the important load level of rapid recovery as a total target;
and the repair scheme determining module 15 is configured to solve the power communication double-layer optimization model by using a path search algorithm traversed by depth priority, and determine a final repair scheme, so as to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme.
Preferably, the dividing the to-be-restored area into a plurality of primary to-be-restored areas and secondary to-be-restored areas according to the distribution situation of the base station and the power distribution terminal in the to-be-restored area includes:
dividing the area to be restored into a plurality of primary areas to be restored according to the distribution condition of the base stations in the area to be restored;
and dividing each first-stage to-be-restored area into a plurality of second-stage to-be-restored areas according to the distribution condition of the power distribution terminals in the first-stage to-be-restored areas.
Preferably, the calculating a recovery report of the faulty base station in each emergency communication recovery area according to the power parameter of the secondary to-be-recovered area and the communication parameter of the emergency communication recovery area includes:
Calculating the sub-load loss rate of each secondary to-be-recovered area according to the load quantity before and after the power failure of each secondary to-be-recovered area in the emergency communication recovery area:
adding the sub-load loss rates to obtain a total load loss rate in the emergency communication recovery area;
calculating the sub-load priority of each secondary area to be restored according to the sub-load priority index of each secondary area to be restored in the emergency communication restoration area;
taking the largest sub-load priority as the total load priority in the emergency communication recovery area;
acquiring an initial radiation radius of a fault base station in the emergency communication recovery area before communication faults occur;
and adding the total load loss rate, the total load priority and the initial radiation radius according to weights to obtain recovery returns of the fault base stations in the emergency communication recovery area.
Preferably, the calculating the sub-load priority of each secondary area to be restored according to the sub-load priority index of each secondary area to be restored in the emergency communication restoration area includes:
acquiring a sub-load priority index of each secondary to-be-restored area in the emergency communication restoration area; wherein the sub-load priority index comprises: the power consumption demand, the power consumption priority, the power quality requirement, the population number and the power supply recovery success rate;
Carrying out standardization processing on each sub-load priority index to obtain a standard value of each sub-load priority index;
and adding all the standard values according to the weight, and calculating the sub-load priority of the secondary area to be restored.
Preferably, the recovering the communication failure of the emergency communication recovery area in order of the recovery rewards from the big to the small includes:
determining all normal base stations; wherein, the normal base station is a base station for normal communication;
according to the distance between the fault base station and each normal base station, determining the normal base station closest to the fault base station, and taking the normal base station as a first normal base station;
according to the distance between the first normal base station and each normal base station, determining the normal base station closest to the first normal base station, and taking the normal base station as a second normal base station;
calculating the radiation radius required by the first normal base station according to the distance between the first normal base station and the fault base station and the second normal base station respectively;
and lifting the transmitting power of the first normal base station corresponding to the fault base station according to the order of the recovery return from large to small, so that the radiation radius of the first normal base station after the lifting of the transmitting power is enlarged to the required radiation radius.
Preferably, the calculating the radiation radius required by the first normal base station according to the distances between the first normal base station and the faulty base station and the second normal base station respectively includes:
the distance between the first normal base station and the fault base station is recorded as a first distance, and the distance between the first normal base station and the second normal base station is recorded as a second distance;
adding the first distance to the initial radiation radius before the communication failure of the failed base station to obtain a third distance;
when the third distance is smaller than the second distance, the radiation radius required by the first normal base station is the average value of the third distance and the second distance;
and when the third distance is greater than or equal to the second distance, the radiation radius required by the first normal base station is the third distance.
Preferably, the power supply of the important load level area is quickly restored as a total target, and a power communication double-layer optimization model of the area to be restored is constructed:
communication side recovery takes maximum communication force of all fault base stations as objective functionF 1 ；
Wherein, the communication forces of all the faulty base stations are calculated by the following steps:
Base station with fault
Total number of radiated distribution terminals +.>
Dividing by the total number of distribution terminals of the area to be restored>
Multiplying the obtained quotient by a preset first weight coefficient to obtain a faulty base station +.>
Is a first communication force of (a);
base station with fault
Initial radiation radius before communication failure>
Multiplying the base station with a preset second weight coefficient to obtain the fault base station +.>
Is a second communication force of (a);
adding the first communication force and the second communication force to obtain a fault base station
Is a communication force of (a);
each faulty base station
The communication forces of all the fault base stations are obtained by adding the communication forces of all the fault base stations;
wherein the first weight coefficient and the second weight coefficient have the following constraint:
the first weight coefficient is greater than or equal to 0 and less than or equal to the second weight coefficient;
the second weight coefficient is smaller than or equal to 1;
the first weight coefficient and the second weight coefficient are added to be equal to 1.
Preferably, the constructing the power communication double-layer optimization model of the area to be restored with the power supply of the area with the important load level of quick restoration as a total target further includes:
power side recovery is based on the minimum influence of failure loss of all secondary areas to be recovered F 2 ；
The second-level to-be-restored area which is not fully recovered is the second-level to-be-restored area which is still unable to be fully recovered after the communication of the emergency communication restoration area is temporarily restored;
and calculating the fault loss of all the two-stage areas to be recovered which are not recovered by the following steps:
prioritizing the sub-load of the incompletely restored second-level region to be restored
Sub-load deficit rate with the incompletely restored secondary region ≡>
Multiplying to obtain the fault loss of the secondary to-be-recovered area which is not completely recovered;
calculating the total power failure time of the secondary to-be-restored area which is not fully restored
Integration of the failure deficit of the second-level to-be-restored region in the non-restored region;
adding the integral of each fault loss to obtain the fault loss of all the two-stage areas to be recovered which are not fully recovered;
wherein each of the two-stage to-be-restored areas which are not fully restored has the following constraint:
in the method, in the process of the invention,
representing a continuous logical OR operation, ">
Indicating whether or not incompletely restored secondary areas are allocated to a maintenance teampIf yes, then->
Otherwise->
，/>
The total number of the secondary areas to be restored which are not fully restored;
Communication side recovery with minimum maintenance cost of all faulty base stations as objective functionF 3 ；
The maintenance cost of all the fault base stations is calculated through the following steps:
base station to be maintained for faults
Time spent->
And malfunction base station->
Is damaged by disaster>
Multiplying to obtain fault base station->
Is a maintenance cost of the (a);
each faulty base station
Adding the maintenance costs of all the fault base stations to obtain the maintenance costs of all the fault base stations;
the recovery of the power side and the communication side takes the maintenance speed of the power distribution network fault as the fastest objective functionF 4 ：
Wherein maxV p For maintenance teamspThe fastest rate at which the maintenance tasks are completed,Min order to maintain the total number of teams,V p for maintenance teamspThe speed at which maintenance tasks are completed;
wherein the maintenance team is calculated by the steps ofpSpeed of completion of maintenance tasksV p ；
Will repair the grouppTime required for completing power restoration of secondary to-be-restored area which is not fully restored in maintenance task amountt ep Maintenance teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp And maintenance teampReaching the primary to-be-restored area, the incompletely restored secondary to-be-restored area, and the time taken to move within the incompletely restored secondary to-be-restored area t dp Adding to obtain maintenance teampTotal time to complete maintenance tasks;
will be assigned to maintenance teamspIs to be maintainedA p Divided by maintenance teampObtaining maintenance teams for total time within the completion of maintenance taskspSpeed of completion of maintenance tasksV p ；
Wherein, the maintenance teampThe time required for completing the power restoration of the secondary to-be-restored area which is not fully restored has the following constraint:
maintenance teampThe total time required for completing the power restoration of all the secondary areas to be restored, which are not fully restored, is greater than or equal to 0 and less than or equal to the maintenance teampCompletion of maintenance tasksTime required for power restoration of the secondary to-be-restored area which is not fully restored in the systemt ep ；
Maintenance teampThe total time spent for completing the repair of the faulty base station of all the primary areas to be restored is greater than or equal to 0 and less than or equal to the repair teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp 。
Preferably, the solving the power communication double-layer optimization model by using a path search algorithm of depth-first traversal, determining a final repair scheme, so as to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme, including:
Solving the communication force of all fault base stations in each repairing scheme, the fault loss of all secondary areas to be recovered which are not completely recovered, the maintenance cost of all fault base stations and the maintenance speed of the power distribution network faults;
finding an objective function with a depth-first traversal search algorithmF 1 Maximum scheme sum and objective functionF 1 Schemes with differences of maximum values within a preset first range form a scheme setA；
Finding an objective function with a depth-first traversal search algorithmF 2 Minimum scheme and objective functionF 2 Schemes with the minimum value difference value within a preset second range form a scheme setB；
Finding an objective function with a depth-first traversal search algorithmF 3 Maximum scheme sum and objective functionF 3 Schemes with maximum difference value within a preset third range form a scheme setC；
Finding an objective function with a depth-first traversal search algorithmF 4 Minimum scheme sum and objective functionF 4 Schemes with the minimum value difference value within a preset fourth range form a scheme setD；
Selection scheme set
Target function of (b)F 4 And the maximum value scheme is used as a final repair scheme to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme.
It should be noted that, the working process of each module in the power distribution network power and communication coordination recovery device 10 according to the embodiment of the present invention may refer to the working process of the power distribution network power and communication coordination recovery method according to the above embodiment, which is not described herein.
According to the power distribution network power and communication coordination recovery device 10 provided by the embodiment of the invention, the important first-stage communication faults of the area to be recovered are recovered sequentially from large to small according to the recovery return, so that the power supply of the partial area is recovered through the power distribution network self-recovery, the time and the cost required by the whole power supply recovery are saved, furthermore, the fault recovery of the power side and the communication side is coordinated and considered by constructing the power communication double-layer optimization model of the area to be recovered, the fault recovery is carried out according to the final recovery scheme obtained by solving the power communication double-layer optimization model, the power distribution network fault can be recovered timely and effectively, the rush-repair time of the power distribution network after the disaster is shortened greatly, and the power failure loss of the power distribution network is reduced.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (9)
1. The power distribution network power and communication coordination recovery method is characterized by comprising the following steps of:
dividing the to-be-restored area into a plurality of primary to-be-restored areas and secondary to-be-restored areas according to the distribution conditions of the base stations and the power distribution terminals in the to-be-restored area; each first-level area to be restored comprises a plurality of second-level areas to be restored;
taking a first-level to-be-recovered area where a fault base station is located as an emergency communication recovery area, and determining all emergency communication recovery areas where the fault base station is located; wherein, the fault base station is a base station with communication fault;
according to the electric power parameters of the secondary areas to be recovered and the communication parameters of the emergency communication recovery areas, calculating recovery returns of fault base stations in each emergency communication recovery area, and recovering communication faults of the emergency communication recovery areas according to the sequence of the recovery returns from high to low so as to enable part of areas of the emergency communication recovery areas to be subjected to fault recovery through a power distribution network self-recovery method;
taking the power supply of the important load level area recovered quickly as a total target, and constructing a power communication double-layer optimization model of the area to be recovered;
solving the power communication double-layer optimization model by utilizing a depth-first traversal path search algorithm, and determining a final restoration scheme so as to restore communication faults and power faults of the primary to-be-restored area and the secondary to-be-restored area one by one according to the restoration scheme;
The power supply of the important load level area is quickly recovered as a total target, and the power communication double-layer optimization model of the area to be recovered is constructed, which comprises the following steps:
communication side recovery takes maximum communication force of all fault base stations as objective functionF 1 ；
Wherein, the communication forces of all the faulty base stations are calculated by the following steps:
base station with fault
Total number of radiated distribution terminals +.>
Dividing by the total number of distribution terminals of the area to be restored>
Multiplying the obtained quotient by a preset first weight coefficient to obtain a faulty base station +.>
Is a first communication force of (a);
base station with fault
Initial radiation radius before communication failure>
Multiplying the base station with a preset second weight coefficient to obtain the fault base station +.>
Is a second communication force of (a);
adding the first communication force and the second communication force to obtain a fault base station
Is a communication force of (a);
each faulty base station
The communication forces of all the fault base stations are obtained by adding the communication forces of all the fault base stations;
wherein the first weight coefficient and the second weight coefficient have the following constraint:
the first weight coefficient is greater than or equal to 0 and less than or equal to the second weight coefficient;
the second weight coefficient is smaller than or equal to 1;
the first weight coefficient and the second weight coefficient are added to be equal to 1.
2. The coordinated power and communication recovery method of a power distribution network according to claim 1, wherein the dividing the area to be recovered into a plurality of primary areas to be recovered and secondary areas to be recovered according to distribution conditions of base stations and power distribution terminals in the area to be recovered comprises:
dividing the area to be restored into a plurality of primary areas to be restored according to the distribution condition of the base stations in the area to be restored;
and dividing each first-stage to-be-restored area into a plurality of second-stage to-be-restored areas according to the distribution condition of the power distribution terminals in the first-stage to-be-restored areas.
3. The coordinated power distribution network power and communication recovery method according to claim 1, wherein the calculating a recovery report of the faulty base station in each emergency communication recovery area according to the power parameter of the secondary to-be-recovered area and the communication parameter of the emergency communication recovery area comprises:
calculating the sub-load loss rate of each secondary to-be-recovered area according to the load quantity before and after the power failure of each secondary to-be-recovered area in the emergency communication recovery area:
adding the sub-load loss rates to obtain a total load loss rate in the emergency communication recovery area;
Calculating the sub-load priority of each secondary area to be restored according to the sub-load priority index of each secondary area to be restored in the emergency communication restoration area;
taking the largest sub-load priority as the total load priority in the emergency communication recovery area;
acquiring an initial radiation radius of a fault base station in the emergency communication recovery area before communication faults occur;
and adding the total load loss rate, the total load priority and the initial radiation radius according to weights to obtain recovery returns of the fault base stations in the emergency communication recovery area.
4. A method for coordinated recovery of power and communication over a power distribution network according to claim 3, wherein said calculating the sub-load priority of each of said secondary areas to be recovered based on the sub-load priority index of each of said secondary areas to be recovered in said emergency communication recovery area comprises:
acquiring a sub-load priority index of each secondary to-be-restored area in the emergency communication restoration area; wherein the sub-load priority index comprises: the power consumption demand, the power consumption priority, the power quality requirement, the population number and the power supply recovery success rate;
Carrying out standardization processing on each sub-load priority index to obtain a standard value of each sub-load priority index;
and adding all the standard values according to the weight, and calculating the sub-load priority of the secondary area to be restored.
5. The coordinated power distribution network power and communication restoration method according to claim 1, wherein the restoration of the communication failure of the emergency communication restoration area in order of the restoration returns from the large to the small includes:
determining all normal base stations; wherein, the normal base station is a base station for normal communication;
according to the distance between the fault base station and each normal base station, determining the normal base station closest to the fault base station, and taking the normal base station as a first normal base station;
according to the distance between the first normal base station and each normal base station, determining the normal base station closest to the first normal base station, and taking the normal base station as a second normal base station;
calculating the radiation radius required by the first normal base station according to the distance between the first normal base station and the fault base station and the second normal base station respectively;
and lifting the transmitting power of the first normal base station corresponding to the fault base station according to the order of the recovery return from large to small, so that the radiation radius of the first normal base station after the lifting of the transmitting power is enlarged to the required radiation radius.
6. The coordinated power and communication restoration method of a power distribution network according to claim 5, wherein the calculating the radiation radius required by the first normal base station according to the distances between the first normal base station and the faulty base station and the second normal base station, respectively, comprises:
the distance between the first normal base station and the fault base station is recorded as a first distance, and the distance between the first normal base station and the second normal base station is recorded as a second distance;
adding the first distance to the initial radiation radius before the communication failure of the failed base station to obtain a third distance;
when the third distance is smaller than the second distance, the radiation radius required by the first normal base station is the average value of the third distance and the second distance;
and when the third distance is greater than or equal to the second distance, the radiation radius required by the first normal base station is the third distance.
7. The coordinated power and communication recovery method of a power distribution network according to claim 1, wherein the constructing a power communication double-layer optimization model of the area to be recovered with the power supply of the area with the important load level of fast recovery as a total target further comprises:
Power side recovery is based on the minimum influence of failure loss of all secondary areas to be recoveredF 2 ；
The second-level to-be-restored area which is not fully recovered is the second-level to-be-restored area which is still unable to be fully recovered after the communication of the emergency communication restoration area is temporarily restored;
and calculating the fault loss of all the two-stage areas to be recovered which are not recovered by the following steps:
prioritizing the sub-load of the incompletely restored second-level region to be restored
Sub-load deficit rate with the incompletely restored secondary region ≡>
Multiplying to obtain the incomplete productFailure loss of the fully recovered secondary to-be-recovered area;
calculating the total power failure time of the secondary to-be-restored area which is not fully restored
Integration of the failure deficit of the second-level to-be-restored region in the non-restored region;
adding the integral of each fault loss to obtain the fault loss of all the two-stage areas to be recovered which are not fully recovered;
wherein each of the two-stage to-be-restored areas which are not fully restored has the following constraint:
in the method, in the process of the invention,
representing a continuous logical OR operation, ">
Indicating whether or not incompletely restored secondary areas are allocated to a maintenance team pIf yes, then->
Otherwise->
，/>
The total number of the secondary areas to be restored which are not fully restored;
communication side recovery with minimum maintenance cost of all faulty base stations as objective functionF 3 ；
The maintenance cost of all the fault base stations is calculated through the following steps:
base station to be maintained for faults
Time spent->
And malfunction base station->
Is damaged by disaster>
Multiplying to obtain fault base station->
Is a maintenance cost of the (a); />
Each faulty base station
Adding the maintenance costs of all the fault base stations to obtain the maintenance costs of all the fault base stations;
the recovery of the power side and the communication side takes the maintenance speed of the power distribution network fault as the fastest objective functionF 4 ：
Wherein maxV p For maintenance teamspThe fastest rate at which the maintenance tasks are completed,Min order to maintain the total number of teams,V p for maintenance teamspThe speed at which maintenance tasks are completed;
wherein the maintenance team is calculated by the steps ofpSpeed of completion of maintenance tasksV p ；
Will repair the grouppTime required for completing power restoration of secondary to-be-restored area which is not fully restored in maintenance task amountt ep Maintenance teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp And maintenanceGroup ofpReaching the primary to-be-restored area, the incompletely restored secondary to-be-restored area, and the time taken to move within the incompletely restored secondary to-be-restored area t dp Adding to obtain maintenance teampTotal time to complete maintenance tasks;
will be assigned to maintenance teamspIs to be maintainedA p Divided by maintenance teampObtaining maintenance teams for total time within the completion of maintenance taskspSpeed of completion of maintenance tasksV p ；
Wherein, the maintenance teampThe time required for completing the power restoration of the secondary to-be-restored area which is not fully restored has the following constraint:
maintenance teampThe total time required for completing the power restoration of all the secondary areas to be restored, which are not fully restored, is greater than or equal to 0 and less than or equal to the maintenance teampTime required for completing power restoration of secondary to-be-restored area which is not fully restored in maintenance task amountt ep ；
Maintenance teampThe total time spent for completing the repair of the faulty base station of all the primary areas to be restored is greater than or equal to 0 and less than or equal to the repair teampTime required for completing maintenance of faulty base station of primary to-be-recovered area in maintenance task amountt cp 。
8. The coordinated power and communication restoration method of a power distribution network according to claim 7, wherein the solving the power communication double-layer optimization model by using a path search algorithm of depth-first traversal, determining a final restoration scheme to restore the communication faults and the power faults of the primary area to be restored and the secondary area to be restored one by one according to the restoration scheme, comprises:
Solving the communication force of all fault base stations in each repairing scheme, the fault loss of all secondary areas to be recovered which are not completely recovered, the maintenance cost of all fault base stations and the maintenance speed of the power distribution network faults;
finding an objective function with a depth-first traversal search algorithmF 1 Maximum scheme sum and objective functionF 1 Schemes with differences of maximum values within a preset first range form a scheme setA；
Finding an objective function with a depth-first traversal search algorithmF 2 Minimum scheme and objective functionF 2 Schemes with the minimum value difference value within a preset second range form a scheme setB；
Finding an objective function with a depth-first traversal search algorithmF 3 Maximum scheme sum and objective functionF 3 Schemes with maximum difference value within a preset third range form a scheme setC；
Finding an objective function with a depth-first traversal search algorithmF 4 Minimum scheme sum and objective functionF 4 Schemes with the minimum value difference value within a preset fourth range form a scheme setD；
Selection scheme set
Target function of (b)F 4 And the maximum value scheme is used as a final repair scheme to recover the communication faults and the power faults of the primary to-be-recovered area and the secondary to-be-recovered area one by one according to the repair scheme. / >
9. A power distribution network power and communication coordination recovery device, comprising:
the regional division module is used for dividing the region to be restored into a plurality of primary regions to be restored and secondary regions to be restored according to the distribution conditions of the base stations and the power distribution terminals in the region to be restored; each first-level area to be restored comprises a plurality of second-level areas to be restored;
the fault base station determining module is used for taking a primary to-be-recovered area where the fault base station is located as an emergency communication recovery area and determining all emergency communication recovery areas where the fault base station is located; wherein, the fault base station is a base station with communication fault;
the emergency communication recovery module is used for calculating recovery returns of fault base stations in each emergency communication recovery area according to the electric power parameters of the secondary areas to be recovered and the communication parameters of the emergency communication recovery areas, and recovering communication faults of the emergency communication recovery areas according to the order of the recovery returns from large to small so as to enable part of areas of the emergency communication recovery areas to be subjected to fault recovery through a power distribution network self-recovery method;
the model construction module is used for constructing a power communication double-layer optimization model of the region to be recovered by taking the power supply of the region with the important load level recovered quickly as a total target;
The restoration scheme determining module is used for solving the electric power communication double-layer optimization model by utilizing a path search algorithm traversed by depth priority, and determining a final restoration scheme so as to restore communication faults and electric power faults of the primary area to be restored and the secondary area to be restored one by one according to the restoration scheme;
the power supply of the important load level area is quickly recovered as a total target, and the power communication double-layer optimization model of the area to be recovered is constructed, which comprises the following steps:
communication side recovery takes maximum communication force of all fault base stations as objective functionF 1 ；
Wherein, the communication forces of all the faulty base stations are calculated by the following steps:
base station with fault
Total number of radiated distribution terminals +.>
Dividing by the total number of distribution terminals of the area to be restored>
Multiplying the obtained quotient by a preset first weight coefficient to obtain a faulty base station +.>
Is a first communication force of (a);
base station with fault
Initial radiation radius before communication failure>
Multiplying the base station with a preset second weight coefficient to obtain the fault base station +.>
Is a second communication force of (a);
adding the first communication force and the second communication force to obtain a fault base station
Is a communication force of (a);
each faulty base station 
The communication forces of all the fault base stations are obtained by adding the communication forces of all the fault base stations;
wherein the first weight coefficient and the second weight coefficient have the following constraint:
the first weight coefficient is greater than or equal to 0 and less than or equal to the second weight coefficient;
the second weight coefficient is smaller than or equal to 1;
the first weight coefficient and the second weight coefficient are added to be equal to 1.
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