Planning construction method based on line loss

Abstract

The invention discloses a line loss-based planning construction method. The method comprises the following steps of 1, system connection: connecting one side of an electric wire with a planning construction system; step 2, classifying line loss: classifying the line loss of the connecting electric wire; step 3, line loss calculation: the planning construction system calculates a theoretical line loss electric quantity value by applying an adaptive theoretical formula according to the structure parameters and the operation parameters of the power grid, and carries out line loss analysis and evaluation; the power grid line loss rate is an important index for reflecting power grid design planning and operation conditions, line loss analysis and management are enhanced, loss reduction and efficiency improvement are achieved under the'double carbon 'energy strategy, the method is an important measure for guaranteeing operation indexes and implementing quality improvement and efficiency improvement, and the method has the advantages of being high in practicability and good in application prospect. According to the planning construction system, theoretical support is provided for fusion of the planning business by the line loss business by calculating the line loss value and designing the line loss model.

Description

Technical Field

[0001] The present invention relates to the technical field of line loss planning and construction methods, and in particular to a planning and construction method based on line loss. Background Art

[0002] Although the line loss management model of the power system has been improved, problems such as the lack of unified management standards for distribution network line losses by management departments still exist. In the process of comprehensively promoting energy conservation and loss reduction, various contents have been derived that need to be coordinated and integrated when dealing with the same period of line loss business. As the "last mile" of serving users, the distribution network has a complex structure and a large number of them. When analyzing the same period of line loss, it is necessary for various business departments to cooperate with each other, especially to integrate with planning business. Line loss refers to the energy loss caused by resistance, capacitance, and inductance during the transmission of electricity. A high line loss rate will not only cause energy waste in the power grid, but also increase the cost of power supply and affect the stable operation of the power system. Therefore, formulating a scientific and effective line loss management plan is of great significance to improving the operating efficiency of the power system and reducing energy consumption. At present, people usually use planning and construction methods to manage line losses. Before formulating a line loss management plan, it is necessary to first conduct a comprehensive and accurate analysis of the current line loss situation. By analyzing different regions, different lines, By measuring and comparing the line loss rates of different loads, we can find out the areas and lines with high line losses and analyze the main causes of high line losses. This step is the basis for formulating a line loss control plan. According to the analysis results, formulating clear line loss control goals is the key to formulating a plan. The goals should include reducing line loss rates, improving the quality of power supply, and increasing power supply reliability. At the same time, feasible goals should be formulated based on actual conditions. We should not blindly pursue excessively high goals while ignoring operability. According to the usage of existing lines and the distribution of line loss rates, optimizing the layout of lines is one of the important means to reduce line losses. By reasonably planning the direction and length of the lines and reducing the loop power supply and cross power supply of the lines, the resistance and inductance of the lines can be effectively reduced, and line losses can be reduced.

[0003] However, the above planning construction method has the following disadvantages:

[0004] The synchronous line loss control under the new power system has become one of the important professions in the operation of power grid companies. The line loss work is relatively independent of the planning business. The traditional line loss planning construction method does not provide sufficient support for the planning business and cannot meet people's usage needs. Summary of the invention

[0005] The purpose of the present invention is to provide a planning and construction method based on line loss to solve the problem that the synchronous line loss control under the new power system proposed in the above background technology has become one of the important professions in the operation of power grid companies, and the line loss work is relatively independent of the planning business. The traditional line loss planning and construction method is insufficient to support the planning business and cannot meet people's usage needs.

[0006] To achieve the above object, the present invention provides the following technical solution: a planning and construction method based on line loss, comprising the following steps:

[0007] Step 1. Connect the system: Connect the wires to the planned construction system on one side;

[0008] Step 2: Line loss classification: Classify the line loss of the connecting wires;

[0009] Step 3: Line loss calculation: The planning and construction system calculates the theoretical line loss value based on the structural parameters and operating parameters of the power grid using appropriate theoretical formulas, and performs line loss analysis and evaluation;

[0010] Step 4: Reduce line loss: Take corresponding measures to reduce line loss according to the calculated line loss value;

[0011] Step 5: Establish the model: Based on the extended DistFlow power flow model, a distribution network expansion planning model that takes into account line investment cost and network loss cost is proposed;

[0012] Step 6. Optimize the circuit: Optimize the circuit according to the model and the solution to reduce line loss.

[0013] As a preferred technical solution of the present invention, in the step one, the planning and construction system establishes a two-way communication connection with the line loss calculation platform, the planning and construction system in the step one establishes a weekend communication connection with the line loss reduction platform, and the planning and construction system in the step one establishes a two-way communication connection with the line loss classification platform. The line loss calculation platform calculates the theoretical line loss electricity value according to the structural parameters and operating parameters of the power grid using a corresponding theoretical formula, and analyzes and evaluates the line loss. The line loss reduction platform carries out loss reduction management on issues such as metering and collection, electricity theft, three-phase imbalance, power factor, operating mode, and temporary power use, with the focus on reducing the line loss of high-loss equipment.

[0014] As a preferred technical solution of the present invention, the line loss calculation platform includes a root mean square current calculation module, an average current calculation module, an equivalent resistance calculation module and an equal flow calculation module. The root mean square current calculation module only needs to perform statistics on the power or electricity of each time node of the representative day to convert the loss of the distribution network. The average current calculation module uses the electricity as the statistical basis to calculate the current. The equivalent resistance calculation module constructs a virtual equivalent resistance to simulate the transformer resistance and the line resistance. On the one hand, it is more convenient and quick to perform calculations. On the other hand, it avoids the problem of more power grid data and higher calculation difficulty. The equal flow calculation module handles the ring network problem in the 10kV distribution network and is suitable for in-depth analysis of the line loss of the distribution network.

[0015] As a preferred technical solution of the present invention, the line loss reduction platform includes a metering and collection management module, a three-phase balance management module, a power factor management module, a power grid operation management module, an electricity theft management module and a temporary electricity management module. The metering and collection treatment module is improved by sorting out the details of the missing metering devices of the station transformer; optimizing the settings by studying and formulating the metering point settings and priority principles; sorting out the details of the 10 kV mutual supply line without metering devices and improving them; establishing a system for synchronous access, synchronous acceptance and synchronous commissioning of metering and collection devices, doing a good job in construction, commissioning and acceptance, and the operation and inspection department will sign and check before commissioning. The three-phase balance management module organizes the establishment of a periodic detection mechanism for the three-phase imbalance of distribution transformers, conducts periodic inspections and statistics on the existing three-phase imbalance equipment of distribution transformers, establishes a three-phase imbalance ledger for distribution transformers, carries out three-phase imbalance analysis and management work, and conducts three-phase imbalance analysis and management work on the load properties of distribution network equipment with three-phase imbalance and user registration. A comprehensive analysis of the situation is carried out and a governance plan is formulated. The power factor governance module carries out governance work on power factor over-limit issues in three aspects: the main grid, 10 kV and below public lines, and users. In the first stage, a census is conducted on the power factor over-limit issues of the entire network, and a census report is completed. Relevant professional departments organize inspections on the configuration, healthy operation, and automatic switching devices of the power grid reactive compensation equipment according to their division of responsibilities, and propose governance plans for insufficient reactive compensation capacity and operational defects; in the second stage, the voltage reactive power professional management department supervises the implementation of professional management measures to ensure the reasonable switching of reactive equipment and ensure that the availability of reactive equipment meets the requirements. In order to achieve the power factor standards at all levels, the power grid operation management module uniformly establishes a light-load transformer standby plan. For substations with large seasonal load fluctuations, combined with the nature of the power supply load and the power supply reliability requirements, a unified light-load transformer standby plan is proposed for implementation. The electricity theft management module deepens the application of abnormal data in the electricity consumption information collection and marketing business quality control system, strengthens real-time line loss abnormality monitoring, promotes professional management of marketing audits, and strengthens the construction of the electricity consumption audit system. The temporary electricity consumption management module rectify the behaviors of private wiring, failure to install meters, and failure to install leakage protectors as required when using temporary transformers.

[0016] As a preferred technical solution of the present invention, the line loss classification platform includes a resistance line loss module, a magnetic field line loss module and a management line loss module. The resistance line loss module classifies the resistance generated by the conductor itself when transmitting electric energy, which will consume a large amount of electric energy in the process, usually manifested as an increase in conductor temperature. The magnetic field line loss module classifies the line loss generated by the transformer building and maintaining an alternating magnetic field during the process of stepping up or down, and the motor needing to build and maintain a rotating magnetic field. The management line loss module classifies the power loss caused by various factors in the process of power supply enterprises carrying out power transmission and distribution management.

[0017] As a preferred technical solution of the present invention, the constraint condition for establishing the model in step five is a network radial constraint or a power flow constraint.

[0018] As a preferred technical solution of the present invention, the specific measures for optimizing the circuit in step six are changing the line plan, adjusting the conductor name, and optimizing the tower structure.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The power grid line loss rate is an important indicator that reflects the design planning and operation status of the power grid. Under the "dual carbon" energy strategy, strengthening line loss analysis and management to achieve loss reduction and efficiency improvement is an important measure to ensure business indicators and implement quality and efficiency improvement. The planning construction system provides theoretical support for the integration of line loss business with planning business by calculating line loss value and designing line loss model;

[0021] 2. The basic measure for reducing the line loss of the power grid in the planning system is to reduce the consumption and loss of each part of the power system. In terms of the power supply system, the main measure is to reduce the loss of distribution lines and transformers to keep the equipment in an economical operation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a flow chart of the present invention;

[0023] Figure 2 A schematic diagram of the architecture of the planning and construction system of the present invention;

[0024] Figure 3 It is a schematic diagram of the architecture of the line loss calculation platform of the present invention;

[0025] Figure 4 It is a schematic diagram of the architecture of the line loss reduction platform of the present invention;

[0026] Figure 5 Schematic diagram of the architecture of the line loss classification platform of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with 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.

[0028] See also Figure 1-5 The present invention provides a planning and construction method based on line loss, comprising the following steps:

[0029] Step 1. Connect the system: Connect the wires to the planned construction system on one side;

[0030] Step 2: Line loss classification: Classify the line loss of the connecting wires;

[0031] Step 3: Line loss calculation: The planning and construction system calculates the theoretical line loss value based on the structural parameters and operating parameters of the power grid using appropriate theoretical formulas, and performs line loss analysis and evaluation;

[0032] Step 4: Reduce line loss: Take corresponding measures to reduce line loss according to the calculated line loss value;

[0033] Step 5: Establish the model: Based on the extended DistFlow power flow model, a distribution network expansion planning model that takes into account line investment cost and network loss cost is proposed;

[0034] Step 6. Optimize the circuit: Optimize the circuit according to the model and the solution to reduce line loss.

[0035] In step one, the planning and construction system establishes a two-way communication connection with the line loss calculation platform. In step one, the planning and construction system establishes a weekend communication connection with the line loss reduction platform. In step one, the planning and construction system establishes a two-way communication connection with the line loss classification platform. The line loss calculation platform calculates the theoretical line loss electricity value based on the structural parameters and operating parameters of the power grid using appropriate theoretical formulas, and analyzes and evaluates the line loss. The line loss reduction platform carries out loss reduction management on issues such as metering and collection, electricity theft, three-phase imbalance, power factor, operating mode, and temporary power use, with the focus on reducing line losses of high-loss equipment.

[0036] The line loss calculation platform includes the root mean square current calculation module, the average current calculation module, the equivalent resistance calculation module and the equal flow calculation module. The root mean square current calculation module only needs to count the power or electricity at each time node of the representative day to convert the loss of the distribution network. The average current calculation module uses the electricity as the statistical basis for current calculation. The equivalent resistance calculation module constructs a virtual equivalent resistance to simulate the transformer resistance and line resistance. On the one hand, it is more convenient and quick to perform calculations. On the other hand, it avoids the problem of more power grid data and higher calculation difficulty. The equal flow calculation module handles the ring network problem in the 10kV distribution network and is suitable for in-depth analysis of the line loss of the distribution network.

[0037] The line loss reduction platform includes metering and collection management module, three-phase balance management module, power factor management module, power grid operation management module, power theft management module and temporary power management module. The metering and collection treatment module sorts out the details of the missing metering devices of the station transformer and improves them; studies and formulates the metering point setting and priority principle for optimization; sorts out the details of the 10kV mutual supply line without metering devices and improves them; establishes a system for simultaneous access, acceptance and commissioning of metering and collection devices, and does a good job in construction, commissioning and acceptance. Before commissioning, the operation and inspection department will sign and check to ensure that the assessment form and related equipment are complete. The equipment is ready for synchronous acceptance and commissioning; a metering and collection fault information release mechanism is established, and the fault information that affects the line loss statistics and real-time monitoring is released within one working day after the fault occurs. In principle, the fault elimination time shall not exceed 2 weeks to prevent the failure of the metering device from affecting the power metering work. The three-phase balance management module organizes the establishment of a periodic detection mechanism for the three-phase imbalance of the distribution transformer, conducts periodic inspections and statistics on the existing three-phase imbalance equipment of the distribution transformer, establishes a three-phase imbalance ledger for the distribution transformer equipment, carries out three-phase imbalance analysis and management work, and conducts comprehensive research on the load properties of the distribution network equipment with three-phase imbalance and the user's installation status. Analyze and formulate governance plans. The power factor governance module carries out governance work on power factor over-limit issues in three aspects: the main grid, 10 kV and below public lines, and users. In the first stage, a census of power factor over-limit issues in the entire network is conducted and a census report is completed. Relevant professional departments organize inspections of the configuration, healthy operation, and automatic switching devices of the power grid reactive compensation equipment according to their division of responsibilities, and propose governance plans for insufficient reactive compensation capacity and operational defects. In the second stage, the voltage and reactive power professional management department supervises the implementation of professional management measures to ensure the reasonable switching of reactive equipment and ensure that the availability of reactive equipment meets the requirements. , to achieve the power factor standards at all levels, the power grid operation management module uniformly establishes a light-load transformer standby plan, and for substations with large seasonal load fluctuations, combined with the nature of the power supply load and the power supply reliability requirements, a unified light-load transformer standby plan is proposed for implementation. The electricity theft management module deepens the application of abnormal data in the electricity consumption information collection and marketing business quality control system, strengthens real-time line loss abnormality monitoring, promotes professional management of marketing audits, and strengthens the construction of the electricity consumption audit system. The temporary electricity consumption management module rectify the behaviors of private wiring, failure to install meters, and failure to install leakage protectors as required when using temporary transformers.

[0038] The line loss classification platform includes resistance line loss module, magnetic field line loss module and management line loss module. The resistance line loss module classifies the resistance generated by the conductor itself when transmitting electric energy. In this process, a large amount of electric energy will be consumed, which is usually reflected in the phenomenon of increased conductor temperature. The magnetic field line loss module classifies the line loss caused by the transformer building and maintaining an alternating magnetic field during the process of stepping up or down, and the motor needing to build and maintain a rotating magnetic field. The management line loss module classifies the power loss caused by various factors in the process of power supply companies carrying out power transmission and distribution management.

[0039] The constraint conditions for setting up the model in step 5 are network radial constraints or power flow constraints.

[0040] The specific measures to optimize the circuit in step six are to change the line plan, adjust the conductor name, and optimize the tower structure.

[0041] In the present invention, the planning and design of the distribution network should be closely integrated with the urban development plan, and the load forecast and load distribution should be divided into power supply areas based on the economic development plan and urban land use plan, and the conductor cross-section and distribution capacity should be determined. Reasonable planning and design should be used to avoid circuitous power supply. The planning should be in accordance with the requirements of "small capacity, dense points, and short radius". New substations and distribution transformers should be placed at the load center in order to shorten the power supply radius and reduce the loss on the line; dedicated lines and dedicated transformers should be set up for enterprises that meet the specified electricity requirements, and advanced energy-saving equipment such as copper core wires and energy-saving transformers should be selected in equipment selection. The line load should be reasonably distributed to reduce light-load and heavy-load lines. The economic operating current can be calculated to control the line and distribution transformer load to achieve To achieve economic operation, solve the problem of heavy overload of distribution transformers and "big horse pulling a small cart"; the conductor selection should be optimized and reasonably selected according to the economic current density, and consider leaving room for load growth, which not only reduces line loss but also reduces repeated investment. During operation, the connection joints of the main branch and the household line are not handled properly, and an oxide layer will appear on the surface of the conductor exposed to the air. Over time, the oxide layer will gradually thicken and produce a large contact resistance, especially the connection between copper core wire and aluminum core wire. The proportion of line loss in low-voltage distribution lines is very large. If the construction technology is poor, the contact resistance will surge, and the power loss here is proportional to the contact resistance. According to statistics, the contact resistance at the connection of ordinary low-voltage lines is Milliohms, a circuit with a current of 100A consumes 1002X0.02X3X24X365=5256 kWh of electricity due to contact resistance in one year. There are many joints in low-voltage lines. If the process quality control is not good, the total loss will be very large. Therefore, the construction process of joint contact resistance should be well controlled to reduce the power loss caused by excessive contact resistance. Voltage dispatching can be carried out by reasonably allocating reactive power, thereby reducing network losses and generating significant economic and social benefits. Compared with increasing the capacity of distribution transformers and replacing large low-voltage wires, low-voltage reactive compensation has the advantages of small investment and large effect. Reasonable installation of low-voltage reactive compensation devices can achieve twice the result with half the effort; reactive power compensation of distribution networks Compensation, improving power factor and balancing reactive power are effective technical measures to reduce losses. At present, the reactive power compensation capacity of the distribution network is determined according to the power factor required by the power supply company, rather than the actual energy-saving benefits, optimal power quality and economic power factor of the user's electricity consumption. The reasonable configuration and distribution of reactive power compensation equipment requires finding the optimal technical and economic solutions to increase the output of distribution transformers, improve voltage quality and reduce line losses. Reactive power compensation of capacitors in distribution networks is usually designed in a centralized, decentralized and local combination according to the principle of "comprehensive planning, reasonable layout, hierarchical compensation and local balance". In the design, the capacitor capacity is usually calculated according to the transformer capacity. To configure, three-phase on-site balance to reduce losses. At present, most electricity users in most areas use single-phase electricity. Therefore, the load connected to the three-phase low-voltage power grid has a three-phase load imbalance problem. In the three-phase four-wire power supply line, if all single-phase loads are concentrated on one phase, the power loss on the wire is 6 times that of all single-phase loads evenly distributed on three phases. For urban low-voltage distribution networks, it is necessary to regularly measure the three-phase life current and neutral line current of the distribution transformer outlet and some trunk lines and balance the three-phase load current. For example, there is a low-voltage line with a three-phase load current of IA-288A, IB=240A, IC=160A, and a neutral line current of 10=112A; the phase line resistance is R=0.12Q; the neutral line resistance is twice the phase line resistance R0=0.24Q, then the loss of this low-voltage line is about 2 00,000 kWh, when the three-phase current is balanced, the current IA=IB=IC=(288+240+160) / 3,10=0, the annual loss of this line is about 166,000 kWh, requiring the imbalance of the distribution transformer outlet current to be less than 10%, equipment renewal to reduce losses, select new transformers, update and transform high-energy-consuming transformers, and timely update equipment with long operating time and poor operating status in combination with the full life cycle theory of equipment; to reduce the loss of the transformer itself, it is advisable to use S13, S11 series low-energy-consuming transformers or amorphous alloy transformers to replace S9 and previous series of high-energy-consuming transformers in the distribution network; use rare earth wires and cables, add rare earth wires to improve conductivity, reduce resistivity, and reduce energy loss during operation, such as regularly replacing electricity meters, cleaning insulators, and installing leakage switches to reduce current leakage.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A planning and construction method based on line loss, characterized in that: The following steps are involved: Step 1. Connect the system: Connect the wires to the planned construction system on one side; Step 2: Line loss classification: Classify the line loss of the connecting wires; Step 3: Line loss calculation: The planning and construction system calculates the theoretical line loss value based on the structural parameters and operating parameters of the power grid using appropriate theoretical formulas, and performs line loss analysis and evaluation; Step 4: Reduce line loss: Take corresponding measures to reduce line loss according to the calculated line loss value; Step 5: Establish the model: Based on the extended DistFlow power flow model, a distribution network expansion planning model that takes into account line investment cost and network loss cost is proposed; Step 6. Optimize the circuit: Optimize the circuit according to the model and the solution to reduce line loss.

2. The planning and construction method based on line loss according to claim 1, characterized in that: In the step one, the planning and construction system establishes a two-way communication connection with the line loss calculation platform, the planning and construction system in the step one establishes a weekend communication connection with the line loss reduction platform, and the planning and construction system in the step one establishes a two-way communication connection with the line loss classification platform. The line loss calculation platform calculates the theoretical line loss electricity value according to the structural parameters and operating parameters of the power grid using appropriate theoretical formulas, and analyzes and evaluates the line loss. The line loss reduction platform carries out loss reduction management on issues such as metering and collection, electricity theft, three-phase imbalance, power factor, operating mode, and temporary power use, with a focus on reducing the line loss of high-loss equipment.

3. The planning and construction method based on line loss according to claim 1, characterized in that: The line loss calculation platform includes a root mean square current calculation module, an average current calculation module, an equivalent resistance calculation module and an equal flow calculation module. The root mean square current calculation module only needs to perform statistics on the power or electricity of each time node of the representative day to convert the loss of the distribution network. The average current calculation module uses the electricity as the statistical basis to calculate the current. The equivalent resistance calculation module constructs a virtual equivalent resistance to simulate the transformer resistance and the line resistance. On the one hand, it is more convenient and quick to perform calculations, and on the other hand, it avoids the problem of more power grid data and higher calculation difficulty. The equal flow calculation module handles the ring network problem in the 10kV distribution network and is suitable for in-depth analysis of the line loss of the distribution network.

4. The planning and construction method based on line loss according to claim 1, characterized in that: The line loss reduction platform includes a metering and collection management module, a three-phase balance management module, a power factor management module, a power grid operation management module, a power theft management module and a temporary power management module. The metering and collection treatment module sorts out the details of the missing metering devices of the station transformer and improves them; studies and formulates the metering point setting and priority principles for optimization; sorts out the details of the 10 kV mutual supply line without metering devices and improves them; Establish a system for simultaneous access, acceptance and commissioning of metering and data collection devices, do a good job in construction, commissioning and acceptance, and ensure that the Operation and Inspection Department signs and checks before commissioning to ensure that the assessment form and related equipment are accepted and commissioned simultaneously; A metering and collection fault information release mechanism is established. Fault information that affects the line loss statistics and real-time monitoring in the same period is released within one working day of the occurrence of the fault. In principle, the fault elimination time shall not exceed 2 weeks to prevent the failure of the metering device from affecting the electricity metering work. The three-phase balance management module organizes the establishment of a periodic detection mechanism for the three-phase imbalance of the distribution transformer, conducts periodic inspections and statistics on the existing three-phase imbalance equipment of the distribution transformer, establishes a three-phase imbalance ledger for the distribution transformer equipment, carries out three-phase imbalance analysis and management work, conducts a comprehensive analysis of the load properties of the distribution network equipment with three-phase imbalance and the user's registration status, and formulates a management plan. The power factor management module carries out the management of power factor over-limit problems in the three aspects of the main network, 10 kV and below public lines, and users. In the first stage, a census is conducted on the power factor over-limit problem of the entire network, and a census report is completed. The relevant professional departments organize the reactive power compensation equipment of the power grid according to their division of responsibilities. The first step is to check the configuration, healthy operation and automatic switching devices of the power supply, and propose solutions to the problems of insufficient reactive compensation capacity and operational defects. In the second stage, the voltage and reactive power professional management department will supervise the implementation of professional management measures to ensure the reasonable switching of reactive equipment, ensure that the availability of reactive equipment meets the requirements, and achieve the standard of power factors at all levels. The power grid operation management module will uniformly establish a light-load transformer standby plan. For substations with large seasonal load fluctuations, combined with the nature of the power supply load and the requirements of power supply reliability, a unified light-load transformer standby plan will be proposed for implementation. The power theft control module will deepen the application of abnormal data in the power consumption information collection and marketing business quality control system, strengthen real-time line loss abnormality monitoring, promote professional management of marketing audits, and strengthen the construction of the power consumption audit system. The temporary power consumption management module will rectify the behaviors of private wiring, failure to install meters, and failure to install leakage protectors according to regulations when using temporary transformers.

5. The planning and construction method based on line loss according to claim 1, characterized in that: The line loss classification platform includes a resistance line loss module, a magnetic field line loss module and a management line loss module. The resistance line loss module classifies the resistance generated by the conductor itself when transmitting electric energy, which will consume a lot of electric energy in the process, usually manifested as an increase in conductor temperature. The magnetic field line loss module classifies the line loss caused by the transformer building and maintaining an alternating magnetic field during the process of stepping up or down, and the motor needing to build and maintain a rotating magnetic field. The management line loss module classifies the power loss caused by various factors in the process of power supply companies carrying out power transmission and distribution management.

6. The planning and construction method based on line loss according to claim 1, characterized in that: The constraint conditions for setting up the model in step 5 are network radial constraints or power flow constraints.

7. The planning and construction method based on line loss according to claim 1, characterized in that: The specific measures for optimizing the circuit in step six are changing the line plan, adjusting the conductor name, and optimizing the tower structure.

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