A method for calculating transmission and distribution price based on multiple factors

Abstract

The present invention relates to the technical field of power grid transmission and distribution price pricing, and provides a method for calculating transmission and distribution prices based on multiple factors, including: obtaining the transmission and distribution costs corresponding to each voltage level, the user's annual synchronization rate, annual load rate, electricity price execution method and electricity consumption period characteristics, and classifying users according to the annual load rate; calculating the user's transmission and distribution costs according to the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate and the electricity price execution method; constructing an annual load rate-annual synchronization rate experience curve to obtain the basic electricity fee ratio and the electricity fee ratio of the electricity quantity; calculating the basic electricity price and the electricity price of the electricity quantity in the normal period according to the user's transmission and distribution costs and the electricity fee ratio; calculating the target time-sharing floating coefficient according to the electricity consumption period characteristics and the preset time-sharing floating coefficient, and calculating the peak time electricity price and the valley time electricity price in combination with the electricity price of the electricity quantity in the normal period. This solves the problem that the proportion of the basic electricity fee in the total electricity fee is too low, and the transmission and distribution price cannot correctly reflect the electricity cost of users with different load rates.

Description

Technical Field

[0001] The invention relates to the technical field of power grid transmission and distribution price pricing, and in particular to a transmission and distribution price calculation method based on multiple factors. Background Art

[0002] Judging from the long-term practice of transmission and distribution price pricing in my country, the transmission and distribution price is determined according to the "allowable cost plus reasonable profit" method, and the allowable cost is recovered through capacity electricity charges. Among them, the capacity electricity charge is also called the basic electricity charge, which is the electricity charge determined by the basic electricity price; the allowable cost is mainly fixed cost.

[0003] The proportion of basic electricity charges to total electricity charges is generally 30% to 50% in foreign practice, while in domestic practice it is only 15% to 20%. According to the current transmission and distribution price calculation method in my country, the proportion of basic electricity charges to total electricity charges is far less than the proportion of fixed costs in transmission and distribution costs, resulting in the inability to reasonably recover the investment in the power grid; at the same time, because the load factor is not taken into account, the existing transmission and distribution prices cannot correctly reflect the electricity costs of users with different load rates, resulting in insufficient utilization of the resources of the transmission and distribution network and unfair distribution of transmission and distribution costs among users.

[0004] Currently, no effective solution has been proposed to address the problem that the proportion of basic electricity charges in the total electricity charges in relevant technologies is too low, and the transmission and distribution prices cannot correctly reflect the electricity costs of users with different load rates. Summary of the invention

[0005] The invention provides a method for calculating the transmission and distribution electricity price based on multiple factors, which at least solves the problem in the related art that the proportion of basic electricity charges to total electricity charges is too low and the transmission and distribution electricity price cannot correctly reflect the electricity costs of users with different load rates.

[0006] The invention provides a method for calculating the transmission and distribution price based on multiple factors, including: obtaining the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate, annual load rate, electricity price execution method and electricity consumption period characteristics of the user, wherein the users are classified based on the annual load rate; based on the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate of each type of users and the electricity price execution method, the transmission and distribution costs of each type of users are calculated; based on the transmission and distribution costs of each type of users, and the basic electricity fee ratio and electricity fee ratio of each type of users, the basic electricity price and the average time electricity price of each type of users are calculated respectively, wherein an experience curve is constructed based on the annual load rate and annual synchronization rate of each type of users, and the basic electricity fee ratio and electricity fee ratio of each type of users are obtained, and the basic electricity price is used to determine the final transmission and distribution price in combination with the electricity fee corresponding to different time periods; based on the target time-sharing floating coefficient and the average time electricity fee of each type of users, the peak time electricity fee and the valley time electricity fee of each type of users are calculated respectively, wherein the target time-sharing floating coefficient is calculated based on the electricity consumption period characteristics of each type of users and the preset time-sharing floating coefficient.

[0007] The invention provides a method for calculating the transmission and distribution price based on multiple factors, and obtains the transmission and distribution cost corresponding to each voltage level, including: calculating the transmission and distribution cost corresponding to the first voltage level based on the transmission and distribution cost of the first voltage level itself, the capacity of the first voltage level itself, the transmission and distribution cost of the second voltage level itself, and the capacity provided by the second voltage level to the first voltage level, wherein the first voltage level is any voltage level among the voltage levels, and the second voltage level is one or more voltage levels with a voltage level higher than the first voltage level; when the first voltage level is the highest voltage level, the transmission and distribution cost corresponding to the first voltage level is the transmission and distribution cost of the first voltage level itself.

[0008] The invention provides a method for calculating transmission and distribution prices based on multiple factors, wherein the electricity price execution methods include execution according to transformer capacity and execution according to maximum demand; based on the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate of each type of users and the electricity price execution method, the transmission and distribution costs of each type of users are calculated, including: based on the annual synchronization rate of each type of users, the transformer capacity of the first user, and the maximum demand of the second user, the cost sharing ratio of each type of users is calculated, wherein the first user is the user among each type of users who executes according to the transformer capacity, and the second user is the user among each type of users who executes according to the maximum demand; the cost sharing ratio of each type of users is multiplied by the transmission and distribution costs corresponding to each voltage level to obtain the transmission and distribution costs of each type of users.

[0009] The invention provides a method for calculating the transmission and distribution price based on multiple factors, based on the annual simultaneous rate of each type of user, the transformer capacity of the first user, and the maximum demand of the second user. The formula for calculating the cost sharing ratio of each type of user is: ; ; in, is the cost sharing ratio of category k users at voltage level i according to transformer capacity, is the cost sharing ratio of category k users at voltage level i according to the maximum demand, is the annual simultaneous rate of category k users at voltage level i, is the annual simultaneous rate of category k users at voltage level i according to transformer capacity, is the annual simultaneous rate of category k users at voltage level i according to the maximum demand, is the transformer capacity of the mth user among the k-type users at the i voltage level, is the maximum demand of the nth user in the k-type user under the i voltage level, and Σ represents the summation function.

[0010] The invention provides a method for calculating the transmission and distribution price based on multiple factors, and constructs an experience curve based on the annual load rate and annual synchronization rate of various users to obtain the basic electricity fee ratio and the electricity fee ratio of various users, including: calculating variable parameters based on the annual load rate and annual synchronization rate of various users; drawing an experience curve based on the variable parameters, and the function expression of the experience curve is: ; in, is the annual load rate of category k users at voltage level i, is the annual simultaneous rate of users of category k at voltage level i, e is a natural constant, is a variable parameter, ; The intercept term of the corresponding point on the experience curve of type k user under voltage level i represents the basic electricity charge of type k user under voltage level i; the difference between the annual simultaneous rate of type k user under voltage level i and the intercept term represents the electricity charge of type k user under voltage level i; based on the intercept term and the difference, the basic electricity charge ratio and electricity charge ratio of type k user under voltage level i are calculated respectively.

[0011] The invention provides a method for calculating the transmission and distribution price based on multiple factors, and the formula for calculating the basic electricity fee ratio and the electricity fee ratio of the k-type users under the i voltage level based on the intercept term and the difference is: ; ; in, is the basic electricity fee ratio of category k users under voltage level i, is the electricity charge ratio of category k users under voltage level i, represents the intercept term, Indicates the difference.

[0012] The invention provides a method for calculating the transmission and distribution price based on multiple factors, based on the transmission and distribution costs of various users, as well as the basic electricity fee ratio and the electricity fee ratio of various users, and the formula for calculating the basic electricity price and the electricity price of each user during normal hours is: ; ; in, is the basic electricity price for category k users at voltage level i, is the normal period electricity price of category k users at voltage level i, is the transmission and distribution cost of type k users at voltage level i, is the basic electricity fee ratio of category k users under voltage level i, is the electricity charge ratio of category k users under voltage level i, is the annual peak load of the mth user among the k-type users at the i voltage level, is the annual electricity consumption of the mth user among the k-type users at the i voltage level.

[0013] The invention provides a method for calculating the transmission and distribution price based on multiple factors, wherein the target time-of-use floating coefficient includes a target peak period upward floating coefficient and a target valley period downward floating coefficient; based on the target time-of-use floating coefficient and the normal period electricity price of each type of user, the peak period electricity price and valley period electricity price of each type of user are calculated respectively, including: multiplying the target peak period upward floating coefficient by the normal period electricity price of each type of user to obtain the peak period electricity price of each type of user; multiplying the target valley period downward floating coefficient by the normal period electricity price of each type of user to obtain the valley period electricity price of each type of user.

[0014] The invention provides a method for calculating the transmission and distribution price based on multiple factors. The power consumption period characteristics of various users include power consumption peak period characteristics and power consumption valley period characteristics. The preset time-sharing floating coefficient includes a preset peak period upward floating coefficient and a preset valley period downward floating coefficient. Based on the power consumption period characteristics of various users and the preset time-sharing floating coefficient, the formula for calculating the target time-sharing floating coefficient is: ; ; ; ; in, is the target peak period floating coefficient of category k users under voltage level i, is the target valley period downward floating coefficient of category k users under voltage level i, is the peak period characteristic of electricity consumption of category k users under voltage level i, is the valley period characteristic of electricity consumption of category k users under voltage level i, is the floating coefficient for the preset peak period, It is the preset valley period downward floating coefficient. is the annual peak electricity consumption of the mth user among the k-type users under the i voltage level, is the annual off-peak electricity consumption of the mth user among the k-type users under the i voltage level, is the annual electricity consumption of the mth user among the k-type users at the i voltage level.

[0015] The present invention provides a computer program product according to an embodiment of the present invention, including a computer program / instruction. When the computer program / instruction is executed by a processor, any of the above methods is implemented.

[0016] The invention provides a method for calculating the transmission and distribution price based on multiple factors, which comprehensively considers the transmission and distribution costs corresponding to each voltage level, the annual simultaneous rate, annual load rate, electricity price execution mode and the characteristics of the electricity consumption period. Under the same voltage level, the basic electricity price of users with lower load rate can be lower and the electricity price of electricity quantity can be higher, while the basic electricity price of users with higher load rate can be higher and the electricity price of electricity quantity can be lower. On the one hand, the proportion of basic electricity fee in total electricity fee can be reasonably increased, and on the other hand, the electricity cost of users with different load rates can be correctly reflected. At the same time, the electricity price is divided into electricity price in normal period, electricity price in peak period and electricity price in valley period, which can further reflect the electricity cost of users with different load rates in different periods. It is helpful to encourage users to increase the load rate, thereby improving the utilization rate of power grid resources and realizing the optimal allocation of power resources. It solves the problem that the proportion of basic electricity fee in total electricity fee is too low in the related technology, and the transmission and distribution price cannot correctly reflect the electricity cost of users with different load rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other embodiments can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a flowchart of the steps of a method for calculating transmission and distribution prices based on multiple factors in an embodiment of the invention.

[0019] Figure 2 It is a schematic diagram of the BARY curve in the embodiment of the invention.

[0020] Figure 3 It is a schematic diagram of the structure of an electronic device in an embodiment of the invention. DETAILED DESCRIPTION

[0021] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein, which are instead provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0022] The proportion of basic electricity charges to total electricity charges is generally 30% to 50% in foreign practice, while the proportion in domestic practice is only 15% to 20%. According to my country's existing transmission and distribution price calculation method, the proportion of basic electricity charges to total electricity charges is far less than the proportion of fixed costs in transmission and distribution costs, resulting in the inability to reasonably recover the investment in the power grid; at the same time, because the load rate factor is not taken into account, the existing transmission and distribution prices cannot correctly reflect the power supply costs of users with different load rates, resulting in insufficient utilization of the resources of the transmission and distribution network and unfair distribution of transmission and distribution costs among users. It is understandable that the key to transmission and distribution price pricing lies in cost allocation.

[0023] The "Provincial Power Grid Transmission and Distribution Pricing Method" also requires "exploring the formulation of transmission and distribution price packages based on factors such as load rate, which will be selected and implemented by electricity users", and proposes in the appendix that "spot market pilot areas can explore and propose time-of-use transmission and distribution price plan suggestions with a certain degree of flexibility that meet the needs of the load spot market based on actual conditions."

[0024] To do this, please refer to Figure 1 As shown, this embodiment provides a method for calculating the transmission and distribution price based on multiple factors, including: step S101, obtaining the transmission and distribution cost corresponding to each voltage level, the user's annual synchronization rate, annual load rate, electricity price execution method and electricity consumption period characteristics, wherein users are classified based on the annual load rate.

[0025] Step S102, calculating the transmission and distribution costs for each type of user based on the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate of each type of user, and the electricity price execution method.

[0026] Step S103, based on the transmission and distribution costs of various types of users, as well as the basic electricity fee ratio and electricity fee ratio of various types of users, the basic electricity price and the electricity fee ratio during normal periods of time are calculated respectively. Among them, based on the annual load rate and annual concurrency rate of various types of users, an experience curve is constructed to obtain the basic electricity fee ratio and electricity fee ratio of various types of users. The basic electricity price is used to determine the final transmission and distribution price in combination with the electricity fee ratio corresponding to different time periods.

[0027] Step S104, based on the target time-sharing floating coefficient and the normal-time electricity price of each type of user, calculate the peak-time electricity price and the valley-time electricity price of each type of user respectively, wherein the target time-sharing floating coefficient is calculated based on the electricity consumption period characteristics of each type of user and the preset time-sharing floating coefficient.

[0028] Specifically, the transmission and distribution cost corresponding to each voltage level can be the transmission and distribution cost of each voltage level itself, or it can be the transmission and distribution cost of each voltage level itself, and the transmission and distribution cost after considering the influence of other voltage levels. This embodiment preferably considers the transmission and distribution cost after the high voltage level provides capacity support to the low voltage level, which has high accuracy, and the details will be described later.

[0029] Among them, the transmission and distribution costs of each voltage level itself include but are not limited to those obtained through the stamp method, the method based on return on investment control, and the power flow tracking method, which belong to the existing technology.

[0030] The annual simultaneous rate of users refers to the ratio of the combined maximum load of the power system to the sum of the absolute maximum loads of each component of the power system. In the power system, since it is unlikely that each user will reach the maximum power consumption at the same time, the sum of the maximum loads is always greater than the maximum value of the sum, and the annual simultaneous rate is the coefficient that reflects this unequal relationship.

[0031] For example, the annual simultaneous rate of users of category k at voltage level i is for: ; Among them, 0< <1,L i,k,m represents the maximum load of users in category k at voltage level i, l i,k,m It represents the maximum load of the mth user among the k-type users at the i voltage level.

[0032] The annual load rate of a user refers to the ratio of the average load to the maximum load of the user in a year. It can measure the change of power load in a year and the efficiency of equipment utilization. The specific formula is: ; Among them, LF is the annual load factor, 0 <LF<1,P ave is the average load of the user in one year, Pmax It is the user's maximum load in one year.

[0033] It is understandable that users with higher annual load factors have higher permitted costs or capacity costs and should bear higher basic electricity prices and relatively lower electricity prices for their electricity consumption.

[0034] Users are classified based on the boundary values ​​of the annual load rate. For example, if the boundary values ​​are set to x1 and x2, the annual load rate ranges are (0, x1], (x1, x2], and (x2, 1) respectively. Users can be divided into three categories according to the ranges of their respective annual load rates. Obviously, the more boundary values ​​there are, the more categories of users there are, and the finer the division.

[0035] Methods for determining the limit value include, but are not limited to: drawing a characteristic curve based on the annual load rate of each user, determining the limit value based on the characteristic curve, or determining it based on an existing annual load rate classification table in various places.

[0036] The pricing methods of transmission and distribution electricity prices include but are not limited to single-system electricity prices, two-part electricity prices, peak-valley time-of-use electricity prices, tiered electricity prices, and power factor adjustment electricity prices. This embodiment is preferably a two-part electricity price, which is particularly suitable for user groups with large electricity demand, such as large industrial users. The electricity price execution methods of the two-part electricity price are divided into execution according to transformer capacity and execution according to maximum demand, and the subsequent user electricity price execution methods are explained in this way.

[0037] Transformer capacity refers to the apparent power that the transformer can output under rated operating conditions. It is usually measured in kilovolt-amperes (kVA) and reflects the transformer's ability to carry loads.

[0038] Maximum demand refers to the maximum active power value of the power load during an electricity bill settlement cycle, usually in kilowatts (kW), reflecting the actual peak power demand within a certain period of time.

[0039] The basic electricity price mainly reflects the fixed costs in the electricity cost, which is related to the user's electricity consumption capacity or maximum demand. It is used to compensate the grid companies for the fixed costs of grid investment, construction, maintenance, etc. incurred in meeting the user's electricity consumption capacity requirements.

[0040] The electricity price per unit of electricity, also known as the electricity price per kilowatt-hour, is related to the actual amount of electricity used by the user and is mainly used to compensate for variable costs in the process of electricity production and supply, such as fuel costs, power loss, etc.

[0041] The time periods corresponding to the normal period electricity price, peak period electricity price and valley period electricity price can be determined according to the time period division standards for industrial and commercial users stipulated in the provincial sales electricity price table.

[0042] The electricity fee actually paid by the user is the sum of the basic electricity fee and the electricity fee for electricity consumption, where the basic electricity fee is equal to the product of the user's transformer capacity and the basic electricity price, or the product of the user's maximum demand and the basic electricity price; the electricity fee for electricity consumption is equal to the product of the user's electricity consumption and the electricity price for electricity consumption. In the case of no division of time periods, the electricity price for electricity consumption refers to the electricity price for electricity consumption during the above-mentioned normal period.

[0043] The time period characteristics of a user's electricity consumption refer to the regular characteristics of the user's electricity load changing over time at different time scales, including but not limited to the peak period characteristics and valley period characteristics of electricity consumption.

[0044] The method for calculating the transmission and distribution costs of various types of users may be: according to the existing classification standards, combined with the annual synchronization rate of various types of users and the electricity price execution method, the cost sharing ratio of each type of user is determined, and multiplied by the transmission and distribution costs corresponding to each voltage level to obtain the transmission and distribution costs of each type of user. This embodiment is preferably: based on the annual synchronization rate of various types of users, the transformer capacity of the first user, and the maximum demand of the second user, the cost sharing ratio of each type of user is calculated, and then multiplied by the transmission and distribution costs corresponding to each voltage level to obtain the transmission and distribution costs of each type of user. Details will be described later.

[0045] The experience curve refers to a characteristic curve that can associate the annual load rate and the annual synchronization rate, including but not limited to the Barry curve and the annual continuous load curve. The present embodiment is preferably a Barry curve, which can more intuitively and accurately reflect the relationship between the annual load rate and the annual synchronization rate, and further determine the basic electricity fee ratio and the electricity fee ratio of the electricity consumption.

[0046] The preset time-of-use floating coefficient refers to the time-of-use floating coefficient stipulated by local power grid companies, including but not limited to the preset peak period upward floating coefficient and the preset valley period downward floating coefficient.

[0047] The above-mentioned transmission and distribution price calculation method provided in this embodiment comprehensively considers the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate, annual load rate, electricity price execution method and electricity consumption period characteristics of the user. Under the same voltage level, it can achieve a lower basic electricity price and a higher electricity price for users with a lower load rate, while a higher basic electricity price and a lower electricity price for users with a higher load rate. On the one hand, it can reasonably increase the proportion of basic electricity charges in the total electricity charges, and on the other hand, it can correctly reflect the electricity costs of users with different load rates. At the same time, the electricity price is divided into electricity prices in normal periods, electricity prices in peak periods, and electricity prices in valley periods, which can further reflect the electricity costs of users with different load rates in different periods. It is helpful to encourage users to increase the load rate, thereby improving the utilization rate of power grid resources and realizing the optimal allocation of power resources. This solves the problem that the proportion of basic electricity charges in the total electricity charges is too low in the related technology, and the transmission and distribution price cannot correctly reflect the electricity costs of users with different load rates.

[0048] Preferably, the method for obtaining the power transmission and distribution costs corresponding to each voltage level includes: calculating the power transmission and distribution cost corresponding to the first voltage level based on the power transmission and distribution cost of the first voltage level itself, the capacity of the first voltage level itself, the power transmission and distribution cost of the second voltage level itself, and the capacity provided by the second voltage level to the first voltage level, wherein the first voltage level is any voltage level among the voltage levels, and the second voltage level is one or more voltage levels higher than the first voltage level.

[0049] When the first voltage level is the highest voltage level, the power transmission and distribution cost corresponding to the first voltage level is the power transmission and distribution cost of the first voltage level itself.

[0050] For example, the transmission and distribution cost corresponding to voltage level i is for: ; in, is the transmission and distribution cost of voltage level i itself, is the transmission and distribution cost of voltage level j itself, where voltage level j is one or more voltage levels higher than voltage level i, is the capacity of the i voltage level itself, is the capacity provided by any voltage level j to voltage level i, The total capacity provided by all j voltage levels to i voltage level.

[0051] The above method for obtaining the transmission and distribution costs corresponding to each voltage level takes into account the capacity support relationship between each voltage level, has high accuracy, and is helpful for the subsequent calculation of reasonable transmission and distribution costs for various types of users.

[0052] Preferably, step S102, based on the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate of each type of users and the electricity price implementation method, calculates the transmission and distribution costs of each type of users, including: step S1021, based on the annual synchronization rate of each type of users, the transformer capacity of the first user, and the maximum demand of the second user, calculates the cost sharing ratio of each type of users, wherein the first user is the user among each type of users who executes according to the transformer capacity, and the second user is the user among each type of users who executes according to the maximum demand.

[0053] The formula for calculating the cost sharing ratio of each type of user is: ; ; in, is the cost sharing ratio of category k users at voltage level i according to transformer capacity, is the cost sharing ratio of category k users at voltage level i according to the maximum demand, is the annual simultaneous rate of category k users at voltage level i, is the annual simultaneous rate of category k users at voltage level i according to transformer capacity, is the annual simultaneous rate of category k users at voltage level i according to the maximum demand, is the transformer capacity of the mth user among the k-type users at the i voltage level, is the maximum demand of the nth user in the k-type user under the i voltage level, and Σ represents the summation function.

[0054] Step S1022, multiplying the cost sharing ratio of each type of user by the power transmission and distribution cost corresponding to each voltage level to obtain the power transmission and distribution cost of each type of user.

[0055] Transmission and distribution costs for category k users at voltage level i according to transformer capacity for: ; Transmission and distribution cost of k-type users at voltage level i according to maximum demand for: .

[0056] It can be understood that the transmission and distribution costs for various types of users calculated based on the above method are relatively accurate.

[0057] Preferably, in step S103, an experience curve is constructed based on the annual load rate and annual synchronization rate of each type of user to obtain the basic electricity fee ratio and electricity volume electricity fee ratio of each type of user, including: step S1031, calculating variable parameters based on the annual load rate and annual synchronization rate of each type of user.

[0058] Among them, the variable parameters .

[0059] Step S1032, draw an experience curve based on the variable parameters, and the function expression of the experience curve is: ; in, is the annual load rate of category k users at voltage level i, is the annual simultaneous rate of users of category k at voltage level i, and e is a natural constant; please refer to Figure 2 As shown in the figure, the intercept term 0b of the corresponding point of the k-type user on the experience curve under voltage level i i,k , represents the basic electricity fee of category k users under voltage level i; the difference b is obtained by subtracting the intercept term from the annual simultaneous rate of category k users under voltage level i i,k CF i,k, which represents the electricity charge of category k user at voltage level i.

[0060] Step S1033, based on the intercept term and the difference, respectively calculate the basic electricity charge ratio and the electricity charge ratio of the k-type user at the i voltage level.

[0061] Specifically, the basic electricity fee ratio of category k users under voltage level i The ratio of electricity consumption to electricity charges They are: ; ; in, Represents the intercept term 0b i,k , The above difference b i,k CF i,k .

[0062] It can be understood that the BARY curve can intuitively and accurately reflect the relationship between the annual load rate and the annual synchronization rate, and then determine the basic electricity charge ratio and the electricity charge ratio.

[0063] Furthermore, in step S103, based on the transmission and distribution costs of various users, as well as the basic electricity fee ratio and the electricity fee ratio of each user, the basic electricity price and the electricity price of each user during normal hours are calculated as follows: ; ; in, is the basic electricity price for category k users at voltage level i, is the normal period electricity price of category k users at voltage level i, is the transmission and distribution cost of type k users at voltage level i, is the annual peak load of the mth user among the k-type users at the i voltage level, is the annual electricity consumption of the mth user among the k-type users at the i voltage level.

[0064] It can be understood that the annual peak load of a user refers to the maximum value of the power load consumed by the user within a year. and They respectively represent the basic electricity charge and electricity quantity charge of category k users under voltage level i.

[0065] Preferably, in step S104, the target time-sharing floating coefficient includes a target peak period upward floating coefficient and a target valley period downward floating coefficient, the electricity consumption period characteristics of each type of user include electricity consumption peak period characteristics and electricity consumption valley period characteristics, and the preset time-sharing floating coefficient includes a preset peak period upward floating coefficient and a preset valley period downward floating coefficient.

[0066] Based on the power consumption time characteristics of various users and the preset time-sharing floating coefficient, the formula for calculating the target time-sharing floating coefficient is: ; ; ; ; in, is the target peak period floating coefficient of category k users under voltage level i, is the target valley period downward floating coefficient of category k users under voltage level i, is the peak period characteristic of electricity consumption of category k users under voltage level i, is the valley period characteristic of electricity consumption of category k users under voltage level i, is the floating coefficient for the preset peak period, It is the preset valley period downward floating coefficient. is the annual peak electricity consumption of the mth user among the k-type users under the i voltage level, is the annual off-peak electricity consumption of the mth user among the k-type users under the i voltage level, is the annual electricity consumption of the mth user among the k-type users at the i voltage level.

[0067] Furthermore, in step S104, based on the target time-sharing floating coefficient and the normal-time electricity price of each type of user, the peak-time electricity price and the valley-time electricity price of each type of user are calculated respectively, including: multiplying the target peak-time floating coefficient by the normal-time electricity price of each type of user to obtain the peak-time electricity price of each type of user.

[0068] Multiply the target off-peak period downward floating coefficient by the normal period electricity consumption and electricity price of each type of user to obtain the off-peak period electricity consumption and electricity price of each type of user.

[0069] Specifically, the peak-time electricity price for category k users at voltage level i Electricity price during off-peak hours They are: ; .

[0070] It is understandable that the electricity price during normal hours is , peak time electricity price , and off-peak electricity prices , which can reflect the actual electricity consumption of users with different load rates at different times, and is used to compensate for the variable costs in the process of electricity production and supply; combined with the basic electricity price used to compensate for fixed costs , forming a two-part electricity price that can reasonably increase the proportion of basic electricity charges in total electricity charges and correctly reflect the electricity costs of users with different load rates, which will help encourage users to increase their load rates, thereby improving the utilization rate of power grid resources and achieving optimal allocation of power resources.

[0071] Exemplarily, this embodiment also provides test data of the above method to verify its technical effect, which is as follows: a total of 64 large industrial users in a 10kV voltage level industrial park in a province or city of the East China coastal State Grid are used as samples, and the annual load data and annual power consumption data of the users are collected, of which 43 households implement electricity prices according to the maximum demand, and 21 households implement electricity prices according to the transformer capacity. Abnormal data in the sample is processed.

[0072] It is calculated that the transmission and distribution cost corresponding to the 10kV voltage level is approximately 578.3 million yuan.

[0073] The annual load rate and annual synchronization rate of each user are calculated according to the user's annual load data; the users are divided into three categories: A, B, and C according to their annual load rates; the cost sharing ratios of the three categories of users are calculated based on the above method provided in this embodiment, and multiplied by the power transmission and distribution costs corresponding to the 10kV voltage level, to obtain the power transmission and distribution costs of the three categories of users as shown in Table 1.

[0074] Table 1 Transmission and distribution costs of three types of large industrial users A, B, and C at 10kV voltage level

[0075] Calculate the variable parameters based on the annual load rate and annual simultaneous rate of the three types of users , construct the BARY curve, calculate the basic electricity fee ratio and the electricity fee ratio, combine the transmission and distribution costs of the three types of users in Table 1, calculate the basic electricity fee and electricity fee of the three types of users, and then get the basic electricity price and electricity price during normal hours for the three types of users, as shown in Table 2.

[0076] Table 2 Basic electricity price and electricity price during normal hours based on multiple factors

[0077] Combining Table 1 and Table 2, it can be seen that in the same electricity price implementation method, the higher the user's annual load rate, the higher the basic electricity fee and basic electricity price, while the electricity fee and the electricity price during normal hours remain at a relatively low level, which helps to achieve reasonable recovery of capacity costs.

[0078] Furthermore, taking the preset valley period upward floating coefficient of 1.57 and the preset valley period downward floating coefficient of 0.42 as an example, the target peak period upward floating coefficient and the target valley period downward floating coefficient are calculated based on the peak period characteristics and valley period characteristics of the three types of users. Combined with the normal period electricity consumption and electricity prices of the three types of users in Table 2, the peak period electricity consumption and electricity prices and valley period electricity consumption and electricity prices of the three types of users are calculated, as shown in Table 3.

[0079] Table 3 Basic electricity price and electricity price for each period

[0080] In summary, the present embodiment provides a method for calculating the transmission and distribution price based on multiple factors, which comprehensively considers the transmission and distribution costs corresponding to each voltage level, the annual simultaneity rate, annual load rate, electricity price execution method and electricity consumption period characteristics of the user. Under the same voltage level, the basic electricity price of users with lower load rate can be lower and the electricity price of electricity volume can be higher, while the basic electricity price of users with higher load rate can be higher and the electricity price of electricity volume can be lower. On the one hand, the proportion of basic electricity fee in total electricity fee can be reasonably increased, and on the other hand, the electricity cost of users with different load rates can be correctly reflected. At the same time, the electricity price is divided into electricity price in normal period, electricity price in peak period and electricity price in valley period, which can further reflect the electricity cost of users with different load rates in different periods. It has high fairness, which helps to encourage users to increase the load rate, thereby improving the utilization rate of power grid resources and realizing the optimal allocation of power resources.

[0081] The present invention also provides a non-transitory machine-readable medium storing a computer program, wherein the computer program, when executed by a processor of a computer, is used to cause the computer to execute the method of the present invention.

[0082] The present invention also provides a computer program product, including a computer program, wherein the computer program, when executed by a processor of a computer, is used to cause the computer to execute the method of the present invention.

[0083] The present invention also provides an electronic device, comprising: at least one processor; and a memory connected to the at least one processor. The memory stores a computer program executable by the at least one processor, and the computer program is used to enable the electronic device to perform the method of the present invention when executed by the at least one processor.

[0084] refer to Figure 3, the structural block diagram of the electronic device that can be used as the server or client of the embodiment of the invention will now be described, which is an example of hardware devices that can be applied to various aspects of the invention. The electronic device is intended to represent various forms of digital electronic computer devices, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples, and are not intended to limit the implementation of the invention described and / or required herein.

[0085] like Figure 3 As shown, the electronic device includes a computing unit 301, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 302 or a computer program loaded from a storage unit 308 into a random access memory (RAM) 303. In the RAM 303, various programs and data required for the operation of the electronic device can also be stored. The computing unit 301, the ROM 302, and the RAM 303 are connected to each other via a bus 304. An input / output (I / O) interface 305 is also connected to the bus 304.

[0086] Multiple components in the electronic device are connected to the I / O interface 305, including: an input unit 306, an output unit 307, a storage unit 308, and a communication unit 309. The input unit 306 can be any type of device that can input information to the electronic device, and the input unit 306 can receive input digital or character information, and generate key signal input related to user settings and / or function control of the electronic device. The output unit 307 can be any type of device that can present information, and can include but is not limited to a display, a speaker, a video / audio output terminal, a vibrator, and / or a printer. The storage unit 308 can include but is not limited to a disk, an optical disk. The communication unit 309 allows the electronic device to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks, and can include but is not limited to a modem, a network card, an infrared communication device, and / or a wireless communication transceiver, such as a Bluetooth device, a WiFi device, a WiMax device, a cellular communication device, and / or the like.

[0087] The computing unit 301 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the computing unit 301 include, but are not limited to, a CPU, a graphics processing unit (GPU), various special artificial intelligence (AI) computing units, various computing units running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The computing unit 301 performs the various methods and processes described above. For example, in some embodiments, the method embodiments created by the present invention may be implemented as a computer program, which is tangibly contained in a machine-readable medium, such as a storage unit 308. In some embodiments, part or all of the computer program may be loaded and / or installed on an electronic device via a ROM 302 and / or a communication unit 309. In some embodiments, the computing unit 301 may be configured to perform the above-described method in any other appropriate manner (e.g., by means of firmware).

[0088] The computer program for implementing the method of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the computer program, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The computer program can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0089] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable signal medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, or infrared systems, devices, or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROMs), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0090] It should be noted that the term "including" and its variations used in the embodiments of the present invention are open inclusions, that is, "including but not limited to". The term "based on" means "based at least in part on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The modifications of "one" and "multiple" mentioned in the embodiments of the present invention are illustrative and not restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more". The descriptions of the terms "first", "second", etc. are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.

[0091] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in the embodiments of the present invention are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0092] The various steps described in the method implementation methods provided by the embodiments of the present invention can be performed in different orders and / or in parallel. In addition, the method implementation methods may include additional steps and / or omit the steps shown. The scope of protection of the present invention is not limited in this respect.

[0093] The term "embodiment" in this specification refers to specific features, structures or characteristics described in conjunction with the embodiment that can be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor does it mean that it is mutually exclusive with other embodiments and is independent or optional. The various embodiments in this specification are described in a related manner, and the same and similar parts between the various embodiments refer to each other. In particular, for the device, equipment, and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts refer to the partial description of the method embodiment.

[0094] The above-described embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of protection. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the attached claims.

Claims

1. A method for calculating transmission and distribution electricity prices based on multiple factors, characterized in that: include: Obtaining the transmission and distribution costs corresponding to each voltage level, the user's annual synchronization rate, annual load rate, electricity price execution method, and electricity consumption period characteristics, wherein the user is classified based on the annual load rate; Calculate the transmission and distribution costs of each type of user based on the transmission and distribution costs corresponding to each voltage level, the annual synchronization rate of each type of user, and the electricity price implementation method; Based on the transmission and distribution costs of the various types of users, as well as the basic electricity fee ratio and the electricity fee ratio of the various types of users, the basic electricity price and the electricity fee ratio of the electricity fee in normal time periods of the various types of users are calculated respectively, wherein an experience curve is constructed based on the annual load rate and annual simultaneity rate of the various types of users to obtain the basic electricity fee ratio and the electricity fee ratio of the electricity fee of the various types of users, and the basic electricity price is used to determine the final transmission and distribution price in combination with the electricity fee ratio of the electricity fee corresponding to different time periods; Based on the target time-sharing floating coefficient and the normal-time electricity price of each type of user, the peak-time electricity price and valley-time electricity price of each type of user are calculated respectively, wherein the target time-sharing floating coefficient is calculated based on the electricity consumption period characteristics of each type of user and the preset time-sharing floating coefficient.

2. The method according to claim 1, characterized in that Obtain the transmission and distribution costs corresponding to each voltage level, including: Calculate the power transmission and distribution cost corresponding to the first voltage level based on the power transmission and distribution cost of the first voltage level itself, the capacity of the first voltage level itself, the power transmission and distribution cost of the second voltage level itself, and the capacity provided by the second voltage level to the first voltage level, wherein the first voltage level is any voltage level among the voltage levels, and the second voltage level is one or more voltage levels higher than the first voltage level; When the first voltage level is the highest voltage level, the power transmission and distribution cost corresponding to the first voltage level is the power transmission and distribution cost of the first voltage level itself.

3. The method according to claim 1, characterized in that The electricity price implementation methods include implementation according to transformer capacity and implementation according to maximum demand; Based on the transmission and distribution costs corresponding to the voltage levels, the annual synchronization rates of various users and the electricity price implementation methods, the transmission and distribution costs of various users are calculated, including: Based on the annual simultaneous rate of each type of users, the transformer capacity of the first user, and the maximum demand of the second user, the cost sharing ratio of each type of users is calculated, wherein the first user is a user among the various types of users that performs according to the transformer capacity, and the second user is a user among the various types of users that performs according to the maximum demand; The cost sharing ratio of each type of user is multiplied by the power transmission and distribution cost corresponding to each voltage level to obtain the power transmission and distribution cost of each type of user.

4. The method according to claim 3, characterized in that Based on the annual simultaneous rate of each type of users, the transformer capacity of the first user, and the maximum demand of the second user, the formula for calculating the cost sharing ratio of each type of users is: ； ； in, is the cost sharing ratio of category k users at voltage level i according to transformer capacity, is the cost sharing ratio of category k users at voltage level i according to the maximum demand, is the annual simultaneous rate of category k users at voltage level i, is the annual simultaneous rate of category k users at voltage level i according to transformer capacity, is the annual simultaneous rate of category k users at voltage level i according to the maximum demand, is the transformer capacity of the mth user among the k-type users at the i voltage level, is the maximum demand of the nth user in the k-type user under the i voltage level, and Σ represents the summation function.

5. The method according to claim 1, characterized in that Based on the annual load rate and annual simultaneous rate of each type of user, an experience curve is constructed to obtain the basic electricity fee ratio and the electricity fee ratio of each type of user, including: Calculate variable parameters based on the annual load rate and annual simultaneous rate of each type of users; The empirical curve is drawn based on the variable parameters, and the functional expression of the empirical curve is: ； in, is the annual load rate of category k users at voltage level i, is the annual simultaneous rate of users of category k at voltage level i, e is a natural constant, is the variable parameter, The intercept term of the corresponding point of the experience curve for the k-type user at the i-voltage level represents the basic electricity fee for the k-type user at the i-voltage level; the difference between the annual simultaneous rate of the k-type user at the i-voltage level and the intercept term represents the electricity fee for the k-type user at the i-voltage level; Based on the intercept term and the difference, the basic electricity charge ratio and the electricity charge ratio of the k-type users under the i-voltage level are calculated respectively.

6. The method according to claim 5, characterized in that Based on the intercept term and the difference, the formulas for calculating the basic electricity fee ratio and the electricity fee ratio of the k-type users under the i voltage level are as follows: ； ； in, is the basic electricity fee ratio of category k users under voltage level i, is the electricity charge ratio of category k users under voltage level i, represents the intercept term, represents the difference.

7. The method according to claim 1, characterized in that Based on the transmission and distribution costs of each type of user, as well as the basic electricity fee ratio and the electricity fee ratio of each type of user, the formulas for calculating the basic electricity price and the electricity price of each type of user during normal hours are as follows: ； ； in, is the basic electricity price for category k users at voltage level i, is the normal period electricity price of category k users at voltage level i, is the transmission and distribution cost of type k users at voltage level i, is the basic electricity fee ratio of category k users under voltage level i, is the electricity charge ratio of category k users under voltage level i, is the annual peak load of the mth user among the k-type users at the i voltage level, is the annual electricity consumption of the mth user among the k-type users under the i voltage level.

8. The method according to claim 1, characterized in that The target time-sharing floating coefficient includes a target peak period upward floating coefficient and a target valley period downward floating coefficient; Based on the target time-sharing floating coefficient and the normal time electricity price of each type of user, the peak time electricity price and the valley time electricity price of each type of user are calculated respectively, including: The target peak period floating coefficient is multiplied by the normal period electricity price of each type of user to obtain the peak period electricity price of each type of user; The target off-peak period downward floating coefficient is multiplied by the normal period electricity consumption and electricity price of each type of user to obtain the off-peak period electricity consumption and electricity price of each type of user.

9. The method according to claim 8, characterized in that The power consumption time characteristics of each type of user include power consumption peak time characteristics and power consumption valley time characteristics, and the preset time-sharing floating coefficient includes a preset peak time upward floating coefficient and a preset valley time downward floating coefficient; Based on the power consumption time characteristics of each type of user and the preset time-sharing floating coefficient, the formula for calculating the target time-sharing floating coefficient is: ； ； ； ； in, is the target peak period floating coefficient of category k users under voltage level i, is the target valley period downward floating coefficient of category k users under voltage level i, is the peak period characteristic of electricity consumption of category k users under voltage level i, is the valley period characteristic of electricity consumption of category k users under voltage level i, is the floating coefficient of the preset peak period, is the preset valley period downward floating coefficient, is the annual peak electricity consumption of the mth user among the k-type users under the i voltage level, is the annual off-peak electricity consumption of the mth user among the k-type users under the i voltage level, is the annual electricity consumption of the mth user among the k-type users under the i voltage level.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the method according to any one of claims 1 to 9 is implemented.

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