Power grid planning method based on carbon emission of power distribution network

Abstract

The invention discloses a power grid planning method based on power distribution network carbon emission, and relates to the technical field of power grid planning, and the method comprises the steps: obtaining power side carbon emission data, power grid side carbon emission data and user load side carbon emission data of a power distribution network of a to-be-planned region; constructing a power distribution network carbon emission model based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data, and calculating power distribution network carbon emission data based on the power distribution network carbon emission model; and based on the power distribution network carbon emission data, determining the power distribution network optimal planning scheme of the to-be-planned area, and solving the technical problem that the existing power grid planning method does not consider the index of carbon emission.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid planning, and in particular to a power grid planning method based on carbon emissions of a distribution network. Background Art

[0002] In recent years, in the operation of regional distribution networks, the proportion of renewable energy access has increased, and the types of sources absorbed by the power grid lines are complex and diverse. At the same time, with the continuous promotion of new energy technology products on the user side, the randomness and volatility of load types and demand levels have continued to increase, which has put forward higher requirements for low-carbon planning under the needs of carbon measurement and carbon tracking, and also brought challenges to the low-carbon and safe operation of distribution networks. Summary of the invention

[0003] The purpose of the present invention is to provide a power grid planning method based on carbon emissions of distribution networks in order to solve at least one of the above technical problems.

[0004] In a first aspect, an embodiment of the present invention provides a power grid planning method based on distribution network carbon emissions, including: obtaining power supply side carbon emission data, power grid side carbon emission data and user load side carbon emission data of the distribution network in the area to be planned; constructing a distribution network carbon emission model based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data; calculating the distribution network carbon emission data based on the distribution network carbon emission model; determining the optimal planning scheme for the distribution network in the area to be planned based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data.

[0005] Furthermore, the distribution network carbon emission model includes: line loss carbon emission model, SF6 gas leakage carbon emission model, equipment production carbon emission model, equipment transportation carbon emission model, power grid construction carbon emission model, power grid operation carbon emission model and power grid equipment retirement carbon emission model.

[0006] Furthermore, the distribution network carbon emission data includes: narrow carbon emission data and broad carbon emission data, and the distribution network carbon emission data is calculated based on the distribution network carbon emission model, including: based on the line loss electricity carbon emission model and the SF6 gas leakage carbon emission model, weighting the line loss electricity carbon emission data and the SF6 gas leakage carbon emission data; calculating the narrow carbon emission data based on the line loss electricity carbon emission data, the SF6 gas leakage carbon emission data and the weighting; determining the equipment production carbon emission data, equipment transportation carbon emission data, power grid construction carbon emission data, power grid operation carbon emission data and power grid equipment retirement carbon emission data based on the equipment production carbon emission model, the equipment transportation carbon emission model, the power grid construction carbon emission model, the power grid operation carbon emission data and the power grid equipment retirement carbon emission model; calculating the broad carbon emission data based on the equipment production carbon emission data, the equipment transportation carbon emission data, the power grid construction carbon emission data, the power grid operation carbon emission data and the power grid equipment retirement carbon emission data.

[0007] Furthermore, the narrow carbon emission data = line loss * electricity carbon emission factor + SF6 gas leakage * SF6 gas carbon emission factor; the broad carbon emission data = equipment production carbon emission data + equipment transportation carbon emission data + power grid construction carbon emission data + power grid operation carbon emission data + power grid equipment retirement carbon emission data.

[0008] Furthermore, based on the carbon emission data on the power supply side, the carbon emission data on the grid side and the carbon emission data on the user load side, the optimal planning scheme for the distribution network in the area to be planned is determined, including: based on the carbon emission data on the power supply side, the carbon emission data on the grid side and the carbon emission data on the user load side, using distributed power sources and electric energy substitution solutions, determining the optimal planning scheme for the distribution network in the area to be planned.

[0009] The present invention provides a power grid planning method based on distribution network carbon emissions, comprising: obtaining power supply side carbon emission data, power grid side carbon emission data and user load side carbon emission data of the distribution network in a planned area; constructing a distribution network carbon emission model based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data; calculating the distribution network carbon emission data based on the distribution network carbon emission model; determining the optimal planning scheme for the distribution network in the planned area based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data. The present invention plans the power grid in combination with carbon emissions, thereby achieving low-carbon and safe operation of the distribution network. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] Figure 1 A flow chart of a power grid planning method based on distribution network carbon emissions provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0012] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0013] Embodiment 1

[0014] According to an embodiment of the present invention, a power grid planning method based on carbon emissions of a distribution network is provided. Figure 1 is a schematic diagram of a power grid planning method based on distribution network carbon emissions according to an embodiment of the present invention, such as Figure 1 As shown, the grid planning method based on distribution network carbon emissions includes:

[0015] Step S102, obtaining power supply-side carbon emission data, grid-side carbon emission data, and user load-side carbon emission data of the regional distribution network to be planned;

[0016] Step S104, constructing a distribution network carbon emission model based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data;

[0017] Step S106, calculating the distribution network carbon emission data based on the distribution network carbon emission model;

[0018] Step S108, based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data, determine the optimal planning scheme for the distribution network in the area to be planned.

[0019] The present invention provides a power grid planning method based on distribution network carbon emissions, comprising: obtaining power supply side carbon emission data, power grid side carbon emission data and user load side carbon emission data of the distribution network in a planned area; constructing a distribution network carbon emission model based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data; calculating the distribution network carbon emission data based on the distribution network carbon emission model; determining the optimal planning scheme for the distribution network in the planned area based on the power supply side carbon emission data, the power grid side carbon emission data and the user load side carbon emission data. The present invention plans the power grid in combination with carbon emissions, thereby achieving low-carbon and safe operation of the distribution network.

[0020] In an embodiment of the present invention, the above-mentioned distribution network carbon emission model includes: line loss electricity carbon emission model, SF6 gas leakage carbon emission model, equipment production carbon emission model, equipment transportation carbon emission model, power grid construction carbon emission model, power grid operation carbon emission model and power grid equipment retirement carbon emission model.

[0021] In the embodiment of the present invention, the distribution network carbon emission data includes: narrow carbon emission data and broad carbon emission data, and step S106 includes the following steps:

[0022] Based on the line loss electricity carbon emission model and the SF6 gas leakage carbon emission model, weighting the line loss electricity carbon emission data and the SF6 gas leakage carbon emission data;

[0023] Calculating the narrow carbon emission data based on the line loss electricity carbon emission data, the SF6 gas leakage carbon emission data and the weighting;

[0024] Based on the equipment production carbon emission model, the equipment transportation carbon emission model, the power grid construction carbon emission model, the power grid operation carbon emission model and the power grid equipment retirement carbon emission model, determine equipment production carbon emission data, equipment transportation carbon emission data, power grid construction carbon emission data, power grid operation carbon emission data and power grid equipment retirement carbon emission data;

[0025] The generalized carbon emission data is calculated based on the equipment production carbon emission data, the equipment transportation carbon emission data, the power grid construction carbon emission data, the power grid operation carbon emission data and the power grid equipment decommissioning carbon emission data.

[0026] Specifically, the narrow carbon emission data = line loss power * power carbon emission factor + SF6 gas leakage * SF6 gas carbon emission factor;

[0027] The broad carbon emission data = equipment production carbon emission data + equipment transportation carbon emission data + power grid construction carbon emission data + power grid operation carbon emission data + power grid equipment retirement carbon emission data.

[0028] In the embodiment of the present invention, step S108 includes the following steps:

[0029] Based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data, the optimal planning scheme for the distribution network in the area to be planned is determined by utilizing distributed power sources and electric energy substitution schemes.

[0030] In an embodiment of the present invention, a "climate-friendly distribution network" is proposed, that is, on the basis of promoting its own carbon reduction (reducing broad carbon emissions), it adapts to the development of social carbon reduction measures such as distributed power sources and electricity substitution, so as to determine the optimal planning scheme for the distribution network and promote the low-carbon and safe operation of the distribution network.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power grid planning method based on carbon emissions of distribution networks, characterized in that: include: Obtain the power supply-side carbon emission data, grid-side carbon emission data and user load-side carbon emission data of the distribution network in the planned area; Based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data, a distribution network carbon emission model is constructed; Based on the distribution network carbon emission model, calculating the distribution network carbon emission data; Based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data, an optimal planning scheme for the distribution network in the area to be planned is determined.

2. The method according to claim 1, characterized in that The distribution network carbon emission model includes: line loss carbon emission model, SF6 gas leakage carbon emission model, equipment production carbon emission model, equipment transportation carbon emission model, power grid construction carbon emission model, power grid operation carbon emission model and power grid equipment retirement carbon emission model.

3. The method according to claim 2, characterized in that The distribution network carbon emission data includes: narrow carbon emission data and broad carbon emission data. Based on the distribution network carbon emission model, the distribution network carbon emission data is calculated, including: Based on the line loss electricity carbon emission model and the SF6 gas leakage carbon emission model, weighting the line loss electricity carbon emission data and the SF6 gas leakage carbon emission data; Calculating the narrow carbon emission data based on the line loss electricity carbon emission data, the SF6 gas leakage carbon emission data and the weighting; Based on the equipment production carbon emission model, the equipment transportation carbon emission model, the power grid construction carbon emission model, the power grid operation carbon emission model and the power grid equipment retirement carbon emission model, determine equipment production carbon emission data, equipment transportation carbon emission data, power grid construction carbon emission data, power grid operation carbon emission data and power grid equipment retirement carbon emission data; The generalized carbon emission data is calculated based on the equipment production carbon emission data, the equipment transportation carbon emission data, the power grid construction carbon emission data, the power grid operation carbon emission data and the power grid equipment decommissioning carbon emission data.

4. The method according to claim 3, characterized in that The narrow carbon emission data = line loss * electricity carbon emission factor + SF6 gas leakage * SF6 gas carbon emission factor; The broad carbon emission data = equipment production carbon emission data + equipment transportation carbon emission data + power grid construction carbon emission data + power grid operation carbon emission data + power grid equipment retirement carbon emission data.

5. The method according to claim 1, characterized in that Based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data, determining the optimal planning scheme for the distribution network in the area to be planned, including: Based on the power supply side carbon emission data, the grid side carbon emission data and the user load side carbon emission data, the optimal planning scheme for the distribution network in the area to be planned is determined by utilizing distributed power sources and electric energy substitution schemes.

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