CN112101698B - Electric power communication optical cable operation capability assessment method - Google Patents
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Abstract
The invention relates to the field of power communication, in particular to a power communication optical cable operation capability assessment method, which comprises the following steps: establishing an abstract model of electric power optical cable bearing power grid business, which is used for establishing the bearing relation between various communication optical cables and communication equipment and different professional power grid production businesses through a many-to-many data table; extracting optical cable data and service data carried by the optical cable based on a data table, traversing and calculating the influence of all the optical cables on the power grid service reliability by establishing an influence calculation model of the power communication optical cable on the power grid service reliability, carrying out quantitative classification according to a calculation result, and extracting the optical cable with small influence as an operable optical cable resource library; extracting optical cables one by one from the established optical cable resource library, analyzing the operation value by establishing an optical cable operation value evaluation model, and quantitatively grading the calculation result. By using the invention, the following effects can be achieved: the operation capability of the electric power communication optical cable is evaluated.
Description
Technical Field
The invention relates to the field of power communication, in particular to an operation capability assessment method for a power communication optical cable.
Background
Communication optical cables are one of the most important infrastructures of power communication networks, and the extra fiber cores are leased to telecom operators or other enterprises and industries with special optical fiber communication requirements, so that more practices are put into practice in power grid companies. Meanwhile, the communication optical cable also carries important production operation business of the power grid, and has an important supporting effect on the stable operation of the power grid.
Currently, the prior art does not have a method for evaluating the operational capability of an electrical communication cable.
Disclosure of Invention
In order to solve the problems, the invention provides an operation capability assessment method of an electric power communication optical cable.
An electric power communication optical cable operation capability assessment method, comprising:
establishing an abstract model of electric power optical cable bearing power grid business, which is used for establishing the bearing relation between various communication optical cables and communication equipment and different professional power grid production businesses through a many-to-many data table;
extracting optical cable data and service data carried by the optical cable based on a data table, traversing and calculating the influence of all the optical cables on the power grid service reliability by establishing an influence calculation model of the power communication optical cable on the power grid service reliability, carrying out quantitative classification according to a calculation result, and extracting the optical cable with small influence as an operable optical cable resource library;
extracting optical cables one by one from the established optical cable resource library, analyzing the operation value by establishing an optical cable operation value evaluation model, and quantitatively grading the calculation result.
Preferably, the step of calculating the influence of all the optical cables on the reliability of the power grid service by establishing an influence calculation model of the power communication optical cable on the reliability of the power grid service comprises the following steps:
the influence of the optical cable on the reliability of the power grid service is set as R, the fiber core number of the optical cable is gamma, the number of important power grid services currently borne by the optical cable is beta, and the risk value of the load bearing service of the optical cable is B, then
Preferably, the risk value of the optical cable bearing service is B, which is obtained by the following calculation formula:
wherein epsilon is a single service type parameter, lambda is a single service scheduling grade parameter, and rho is a single service communication protection evaluation parameter.
Preferably, the service scheduling level parameter λ is determined by a scheduling unit level of a service, and the range of values is as follows:
if the scheduling unit level is national, λ=5;
if the scheduling unit level is regional scheduling, λ=4;
if the scheduling unit level is the provincial scheduling, λ=3;
if the scheduling unit level is a city tone, λ=2;
if the scheduling unit level is zone scheduling, λ=1.
Preferably, the service type parameter epsilon is determined by the type of the service, and the value range is as follows:
if the service type is relay protection service, epsilon=3;
if the type of service is a stable control service, epsilon=3;
if the type of service is an automated service, then ε=2;
if the type of service is other, epsilon=1.
Preferably, the service communication protection evaluation parameter ρ is determined by the communication protection modes and the number of the services, and the value ranges are as follows:
if the service communication has two or more detour channel protection, ρ=5;
if the communication of the service has no roundabout channel protection but has subnet connection protection, ρ=3;
if the communication of the service is only protected by equipment, ρ=2;
if communication of the service is unprotected, ρ=1.
Preferably, the performing the operation value analysis by establishing an optical cable operation value evaluation model includes:
setting the evaluation value of the optical cable operation value as V, the influence of the optical cable on the service reliability as R, the number of optical cable cores as gamma, the number of available idle optical cores as gamma, the optical cable coverage area as sigma, the optical cable type as eta and the optical cable length as delta, and then
Preferably, the optical cable coverage area rating sigma is determined by the area characteristics of the optical cable, and is comprehensively determined according to the geographical characteristics and urban construction conditions of the area, and the value range is 1-2.
Preferably, the optical cable type rating η is determined by the optical cable type, and the value range is:
if the cable type is OPGW cable, η=3;
if the cable type is ADSS cable, η=2;
if the cable type is a normal cable, η=1.
By using the invention, the following effects can be achieved:
establishing an abstract model of electric power optical cable bearing power grid business, which is used for establishing the bearing relation between various communication optical cables and communication equipment and different professional power grid production businesses through a many-to-many data table; extracting optical cable data and service data carried by the optical cable based on a data table, traversing and calculating the influence of all the optical cables on the power grid service reliability by establishing an influence calculation model of the power communication optical cable on the power grid service reliability, carrying out quantitative classification according to a calculation result, and extracting the optical cable with small influence as an operable optical cable resource library; extracting optical cables one by one from the established optical cable resource library, performing operation value analysis by establishing an optical cable operation value evaluation model, and performing quantitative classification on calculation results, thereby realizing evaluation on the operation capability of the electric power communication optical cable.
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The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic flow chart of a method for evaluating the operation capability of an electric power communication optical cable according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an abstract model of a power cable carrying grid service in a power communication cable operation capability assessment method according to an embodiment of the present invention.
Detailed Description
The technical scheme of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these examples.
The basic idea of the invention is that firstly, an abstract model of the electric power optical cable bearing service is established, and the hierarchical relationship and bearing relationship between the electric power communication optical cable and the power grid production service are described in a macroscopic abstraction manner; then, an influence calculation model of the electric power communication optical cable on the reliability of the power grid service is provided, and a quantized evaluation index is provided for the influence of the electric power communication optical cable on the reliability of the power grid service, so that the feasibility and the potential of the optical cable for external operation can be reasonably judged; and finally, an optical cable operation value evaluation model is provided, quantitative evaluation of the electric power communication optical cable operation value is realized, and important references are provided for making optical cable operation modes and operation pricing.
Based on the above inventive concept, the present embodiment proposes a method for evaluating the operation capability of an electric power communication optical cable, as shown in fig. 1, including the following steps:
s1: and establishing an abstract model of the electric power optical cable bearing power grid business, which is used for establishing the bearing relation between various communication optical cables and communication equipment and different professional power grid production businesses through a many-to-many data table.
Fig. 2 shows an abstract model of the service of the power cable carrying the power grid. And establishing corresponding relations among the communication equipment, the communication optical cable, the main channel running state, the standby channel running state, the main communication channel, the standby communication channel and the power grid service communication state in the communication layer, wherein the communication layer comprises the communication equipment, the communication optical cable, the communication channel and the communication service.
First, the physical facilities of the electric power communication network are divided into four categories, namely an optical cable, a pole tower, a channel and a station. The optical cable comprises four types of OPGW optical cable, ADSS optical cable, common optical cable and underwater optical cable. Internally, there is a two-dimensional association relationship including: the cable may be installed on or within a tower and pass through the tower and the trench from one station to another. One cable may consist of several cables connected in series, T-joint, or may pass through the tower, pole, communication pole and several different channels simultaneously.
The optical cable network consists of four major types, namely a transmission network, an access network, a service network and a support network. The network layer also contains two-dimensional association, and mainly provides a transmission channel for the transmission network to the access network and the service network.
In the service layer, various communication application services special for electric power are included, and the communication application services comprise a plurality of service types such as relay protection, stability control and the like. The main protection state of the circuit of the device A on the side, the main protection state of the circuit of the device B on the side and the main protection state of the circuit of the device A on the opposite side are correspondingly connected through special optical fibers or multiplexing channels.
In the longitudinal direction, the optical cable network in which the communication layer is connected in series by the optical cable is the basic support of various communication networks of the network layer, and comprises the step of directly providing relay protection service of the optical fiber special for bearing the fiber core and also comprises the step of providing the optical fiber to realize the communication of the optical transmission system. Communication channels with different bandwidths and different technical characteristics are provided for different applications of the service layer.
S2: and extracting optical cable data and service data carried by the optical cable based on a data table, traversing and calculating the influence of all the optical cables on the power grid service reliability by establishing an influence calculation model of the power communication optical cable on the power grid service reliability, carrying out quantitative classification according to a calculation result, and extracting the optical cable with small influence as an operable optical cable resource library.
The primary consideration in determining whether the electric power communication optical cable can be used for external operation is the influence of the optical cable on the stable and reliable operation of the production service of the power grid. Different power grid services have different demands on optical redundancy and optical cable routing, and different actual application conditions of different optical cables also have differences, so that a reasonable quantitative calculation method is required to evaluate the actual influence of the optical cables on the reliability of the power grid services. Therefore, the invention provides the following calculation model to realize the calculation of the influence of the optical cable on the reliability of the power grid service.
Let the influence of the optical cable on the service reliability be R, the optical cable core number be gamma, the important power grid service number currently carried by the optical cable be beta, the risk value of the optical cable carrying service be B:
according to the formula, the influence R of the optical cable on the service reliability can be calculated. The method comprises the steps of carrying out relay protection and stable control on an important service special power grid of an optical cable currently. The risk value B of the optical cable bearing service is the accumulated risk that all the services borne by the optical cable are affected under the condition that the optical cable is interrupted. Assuming that the single service type parameter is epsilon, the single service scheduling grade parameter is lambda, and the single service communication protection evaluation parameter is rho, B can be calculated by the following formula:
the service scheduling grade parameter lambda is determined by the scheduling unit grade of the service, and the value range is as follows:
if the scheduling unit level is national, λ=5;
if the scheduling unit level is regional scheduling, λ=4;
if the scheduling unit level is the provincial scheduling, λ=3;
if the scheduling unit level is a city tone, λ=2;
if the scheduling unit level is zone scheduling, λ=1.
Wherein, the service type parameter epsilon is determined by the type of the service and has the following value ranges:
if the service type is relay protection service, epsilon=3;
if the type of service is a stable control service, epsilon=3;
if the type of service is an automated service, then ε=2;
if the type of service is other, epsilon=1.
The service communication protection evaluation parameter ρ is determined by the communication protection modes and the number of the services, and the value range is as follows:
if the service communication has two or more detour channel protection, ρ=5;
if the communication of the service has no roundabout channel protection but has subnet connection protection, ρ=3;
if the communication of the service is only protected by equipment, ρ=2;
if communication of the service is unprotected, ρ=1.
S3: extracting optical cables one by one from the established optical cable resource library, analyzing the operation value by establishing an optical cable operation value evaluation model, and quantitatively grading the calculation result
The price assignment of the electric power optical cable to external operation needs a reasonable model as a reference basis, and the embodiment of the invention provides an optical cable operation value evaluation model, wherein the optical cable operation value evaluation value is set as V, the influence of the optical cable on service reliability is set as R, the number of optical cable cores is gamma, the number of available idle optical cores of the optical cable is set as V, the optical cable coverage area is set as sigma, the optical cable type is set as eta, and the optical cable length is set as delta (unit kilometer):
the optical cable coverage area rating sigma is determined by the area characteristics of the optical cable, and is comprehensively determined according to the geographical characteristics of the area and urban construction conditions, and the value range is 1-2. The method comprises the steps of selecting a higher value for a communication base resource scarcity area such as a remote area, a city center and the like, and selecting a low value for a communication resource scarcity area.
Wherein, the optical cable class rating eta is determined by the optical cable class, and the value range is:
if the cable type is OPGW cable, η=3;
if the cable type is ADSS cable, η=2;
if the cable type is a normal cable, η=1.
In the actual implementation process, the power cable bearing power grid business abstract model provided by the invention can be used as a basic theoretical support for power cable bearing power grid business relation analysis and cable operation potential analysis, and can be used for designing a physical data model according to different application purposes and adopted database software on the basis of the model. The influence calculation model of the electric power communication optical cable on the reliability of the power grid business can be directly formed into a computer software algorithm, and the whole commercial operation potential and the available margin analysis of the electric power communication optical cable can be analyzed through the collection and the traversal calculation of the related data of the electric power optical cable, and the electric power communication optical cable can also be used for scenes such as the business risk pre-control of the electric power communication optical cable network; the optical cable operation value evaluation model provided by the invention can also be directly used for forming a computer software algorithm, and can realize quantitative evaluation of the operation value of the electric power communication optical cable aiming at the external leasing and operation scene of the electric power communication optical cable, and the value of the electric power communication optical cable is classified based on the calculation result, so that the optical cable operation mode and tariff pricing are further determined.
Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. A method for evaluating the operational capability of an electric power communication optical cable, comprising:
establishing an abstract model of electric power optical cable bearing power grid business, which is used for establishing the bearing relation between various communication optical cables and communication equipment and different professional power grid production businesses through a many-to-many data table;
extracting optical cable data and service data carried by the optical cable based on a data table, traversing and calculating the influence of all the optical cables on the power grid service reliability by establishing an influence calculation model of the power communication optical cable on the power grid service reliability, carrying out quantitative classification according to a calculation result, and extracting the optical cable with small influence as an operable optical cable resource library;
extracting optical cables one by one from the established optical cable resource library, analyzing the operation value by establishing an optical cable operation value evaluation model, and quantitatively grading the calculation result;
the power cable bearing power grid business abstract model comprises a communication layer and a business layer, and the building of the power cable bearing power grid business abstract model comprises the following steps: establishing corresponding relations among various communication devices and communication optical cables in the communication layer, a main channel running state, a standby channel running state, a main communication channel, a standby communication channel and a power grid service communication state; correspondingly connecting a main protection state of a circuit A of a device on the side, a main protection state of a circuit B of the device in the service layer with a main protection state of a circuit A of a contralateral device and a main protection state of a circuit B of the device through special optical fibers or multiplexing channels; the communication layer is in communication connection with the service layer, and the power cable bearing power grid service abstract model is constructed;
the step of calculating the influence of all the optical cables on the reliability of the power grid service through establishing an influence calculation model of the power communication optical cable on the reliability of the power grid service comprises the following steps:
the influence of the optical cable on the reliability of the power grid service is set as R, the fiber core number of the optical cable is gamma, the number of important power grid services currently borne by the optical cable is beta, and the risk value of the load bearing service of the optical cable is B, then
Wherein, the performing operation value analysis by establishing an optical cable operation value evaluation model includes:
the evaluation value of the optical cable operation value is V, the influence of the optical cable on service reliability is R, the number of optical cable cores is gamma, the number of available idle optical cores of the optical cable is gamma, the optical cable coverage area is rated as sigma, the optical cable type is rated as eta, and the optical cable length is delta.
2. The method for evaluating the operation capability of an electric power communication optical cable according to claim 1, wherein the risk value of the optical cable bearer service is B, which is obtained by the following calculation formula:
wherein epsilon is a single service type parameter, lambda is a single service scheduling grade parameter, and rho is a single service communication protection evaluation parameter.
3. The method for evaluating the operation capability of an electric power communication optical cable according to claim 2, wherein the service scheduling level parameter λ is determined by a scheduling unit level of a service, and the range of values is as follows:
if the scheduling unit level is national, λ=5;
if the scheduling unit level is regional scheduling, λ=4;
if the scheduling unit level is the provincial scheduling, λ=3;
if the scheduling unit level is a city tone, λ=2;
if the scheduling unit level is zone scheduling, λ=1.
4. The method for evaluating the operation capability of an electric power communication optical cable according to claim 2, wherein the service type parameter epsilon is determined by the type of the service, and the range of the value is as follows:
if the service type is relay protection service, epsilon=3;
if the type of service is a stable control service, epsilon=3;
if the type of service is an automated service, then ε=2;
if the type of service is other, epsilon=1.
5. The method for evaluating the operation capability of an electric power communication optical cable according to claim 2, wherein the service communication protection evaluation parameter ρ is determined by the communication protection modes and the number of services, and the value ranges are as follows:
if the service communication has two or more detour channel protection, ρ=5;
if the communication of the service has no roundabout channel protection but has subnet connection protection, ρ=3;
if the communication of the service is only protected by equipment, ρ=2;
if communication of the service is unprotected, ρ=1.
6. The method for evaluating the operation capability of the electric power communication optical cable according to claim 1, wherein the optical cable coverage area rating sigma is determined by the area characteristics of the optical cable, and is comprehensively determined according to the geographic characteristics and urban construction conditions of the area, and the value range is 1-2.
7. The method for evaluating the operation capability of an electric power communication optical cable according to claim 1, wherein the optical cable type rating η is determined by the optical cable type and has a value range of:
if the cable type is OPGW cable, η=3;
if the cable type is ADSS cable, η=2;
if the cable type is a normal cable, η=1.
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