Method for joining inter-provincial selling peak regulation difference electricity charge and spot operation period of power generation enterprise

Abstract

The invention discloses a method for connecting inter-provincial sale peak regulation difference electric charge of a power generation enterprise with a spot operation period. The method comprises the following steps: determining the power generation enterprise participating in inter-provincial sale peak regulation auxiliary service; calculating the peak-load-regulation transaction electric quantity sold among provinces of the power generation enterprises in a time-division and 24-point time-division manner; calculating the inter-provincial sale peak regulation expenditure of the power generation enterprises; calculating the inter-provincial sale peak regulation income cost of the power generation enterprises; and calculating the inter-provincial selling peak regulation difference electric charge of the power generation enterprises. According to the method, the problem that the inter-provincial peak regulation difference electric charge of the power generation enterprise is connected with the spot operation period can be solved, the power generation enterprise is prevented from using the inter-provincial peak regulation auxiliary service to perform illegal arbitrage during the spot operation period, and the overall benefit of the power market is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary decision-making in the power market, and in particular to a method for linking inter-provincial peak-shaving difference electricity charges sold by a power generation enterprise with a spot operation period. Background Art

[0002] Inter-provincial peak-shaving auxiliary service transactions refer to the cross-provincial call for day-ahead and intra-day peak-shaving resources in a market-oriented manner when the intra-provincial peak-shaving resources cannot meet the needs of the provincial grid. After the power generation enterprise participates in the inter-provincial peak-shaving auxiliary service transactions, the bid transaction power is regarded as the power generation of the power generation enterprise. During the non-spot operation period, the inter-provincial peak-shaving auxiliary service transaction power of the power generation enterprise is compensated according to the medium- and long-term deviation electricity price of the power generation enterprise. However, Hubei Province has officially entered the long-term settlement trial operation of the power spot market. The medium- and long-term deviation electricity price of the power enterprise can no longer accurately reflect the actual price of the power generation enterprise in the day-ahead and intra-day spot market. If the original medium- and long-term deviation electricity price of the power enterprise is still used to compensate the power generation enterprise for participating in the inter-provincial peak-shaving auxiliary service transactions, it is very likely that the compensation price will be much higher than the average price of the power generation enterprise in the spot market. If this situation is not corrected in time, it will inevitably cause power generation enterprises to compete to participate in the inter-provincial peak-shaving auxiliary service transactions and conduct illegal arbitrage, which will greatly affect the fairness of the power market and the interests of other market players.

[0003] Therefore, it is necessary to design a method to connect the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period, to more accurately and reasonably calculate the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises, to connect the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period, to avoid the impact of illegal arbitrage behavior of power generation enterprises using inter-provincial peak-shaving auxiliary services sold during the spot operation period on the power market, and to safeguard the overall interests of the power market. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide a method for linking the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period, to more accurately and reasonably calculate the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises, to link the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period, to avoid the impact of illegal arbitrage behavior of power generation enterprises using inter-provincial peak-shaving auxiliary services sold during the spot operation period on the power market, and to protect the overall interests of the power market.

[0005] To achieve the above object, the present invention provides a method for linking the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period, comprising the following steps:

[0006] Step 1: Identify the power generation enterprises that participate in the inter-provincial sale of peak load ancillary services;

[0007] Step 2: Calculate the inter-provincial peak-shaving transaction electricity sold by power generation enterprises by time period and 24 hours;

[0008] Step 3: Calculate the inter-provincial peak-shaving transaction costs of the power generation enterprises based on the inter-provincial peak-shaving transaction electricity sold by the power generation enterprises calculated in step 2;

[0009] Step 4: Calculate the inter-provincial peak-shaving transaction revenue and expenses of the power generation enterprise based on the inter-provincial peak-shaving transaction electricity sold by the power generation enterprise calculated in step 2;

[0010] Step 5: Calculate the difference in electricity charges for inter-provincial sales of peak-shaving electricity by the power generation enterprise based on the inter-provincial sales of peak-shaving electricity calculated in step 3 and the inter-provincial sales of peak-shaving income calculated in step 4.

[0011] Furthermore, the step one determines the power generation enterprises participating in the inter-provincial sale of peak-shaving auxiliary services, specifically including: determining whether a power generation enterprise is a power generation enterprise participating in the inter-provincial sale of peak-shaving auxiliary services transactions organized by the power dispatching agency in that month based on whether the units of the power generation enterprise have won the bid; if the units of the power generation enterprise have electricity in the results of the inter-provincial sale of peak-shaving auxiliary services cleared by the power dispatching agency, then the unit has won the bid; if the units of the power generation enterprise have no electricity, then the unit has not won the bid.

[0012] Furthermore, in the step 2, the inter-provincial peak-shaving transaction electricity sold by power generation enterprises is calculated by time period, including: the inter-provincial peak-shaving transaction electricity sold by a power generation enterprise in each time period = the winning electricity of a certain power generation enterprise participating in the provincial peak-shaving sales of auxiliary service exchanges in each time period; the inter-provincial peak-shaving transaction electricity sold by power generation enterprises is calculated by 24 time points, including: the inter-provincial peak-shaving transaction electricity sold by a certain power generation enterprise at each time point = the winning electricity of a certain power generation enterprise participating in the provincial peak-shaving sales of auxiliary service exchanges at each time point.

[0013] Furthermore, the time periods in step 2 include peak period, peak period, normal period and valley period, as follows:

[0014] Peak hours: 20:00-22:00 in July and August, 18:00-20:00 in other months;

[0015] Peak hours: 16:00-20:00, 22:00-24:00 in July and August, 16:00-18:00, 20:00-24:00 in other months;

[0016] Normal hours: 6:00-12:00, 14:00-16:00;

[0017] Low hours: 0:00-6:00, 12:00-14:00.

[0018] Furthermore, the step three specifically includes: the inter-provincial peak-shaving expenditure of a power generation enterprise = the inter-provincial peak-shaving transaction electricity sold by the units under the jurisdiction of a power generation enterprise × (peak-shaving auxiliary service clearing electricity price + intra-provincial transmission price + inter-provincial transmission price);

[0019] Among them, the inter-provincial peak-shaving transaction electricity sold by the units under the jurisdiction of a power generation enterprise and the peak-shaving auxiliary service clearing electricity prices of each unit, the provincial transmission price, and the inter-provincial transmission price are all cleared by the provincial power dispatching agency;

[0020] The provincial power dispatching agency sorts the peak-shaving capacity that can be provided by the market players in the seller province in each period from high to low according to the peak-shaving power-price curve, until the peak-shaving demand of the buyer province in that period is met, and forms the marginal clearing price and the winning power. The marginal clearing price refers to the quotation of the last selected generator group in the power market transaction, which is sorted from low to high according to the quotation of the generator group until the power demand of the system is met. The marginal clearing price is used to determine whether the price declared by the power generation enterprise is successful. Only when the declared price of the power generation enterprise is equal to or lower than the marginal clearing price can it win the bid.

[0021] The transaction price is the price declared by the market entity in the service seller province that finally won the bid; when the declared price is equal to the marginal clearing price, the winning electricity is allocated according to the proportion of the peak-shaving capacity that the market entity in the service seller province can provide under that price; when the peak-shaving supply or transmission channel capacity of the market entity in the service seller province does not meet the peak-shaving demand of the service buyer province, the transaction price is the lowest declared price by the market entity in the service seller province that meets the call conditions.

[0022] Furthermore, the step 4 specifically includes:

[0023] (1) Calculation of the cost of inter-provincial peak-shaving revenue from power generation enterprises during non-spot operation

[0024] The revenue and expense of inter-provincial peak-shaving sales during the non-spot period of a power generation enterprise = the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving in each period × the deviation electricity price of the power generation enterprise in each period in the medium and long term;

[0025] Among them, the inter-provincial peak-shaving electricity sold by a power generation enterprise in each period is the accumulation of the inter-provincial peak-shaving transaction electricity sold by the units under the power generation enterprise in each period. When the difference between the monthly inter-provincial peak-shaving transaction electricity sold by the power dispatching agency and the total electricity in each period is covered by the flat period, each period is divided into peak period: 20:00-22:00 in July and August, 18:00-20:00 in other months; peak period: 16:00-20:00, 22:00-24:00 in July and August, 16:00-18:00, 20:00-24:00 in other months; flat period: 6:00-12:00, 14:00-16:00; trough period: 0:00-6:00, 12:00-14:00;

[0026] The medium- and long-term deviation electricity price for power generation enterprises in each period is the average contract price for all power generation enterprises in conventional direct transactions in each period, where conventional direct transactions refer to other transaction types excluding agency power purchase transactions and green power transactions;

[0027] (2) Calculation of the cost of inter-provincial peak-shaving revenue sold by power generation enterprises during spot operation

[0028] The peak-shaving revenue of a power generation enterprise during the spot period = the amount of electricity sold by a power generation enterprise at each time point of 24 o'clock every day × the electricity price of a power generation enterprise at each time point of 24 o'clock every day;

[0029] Among them, the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving at each time point at 24 o'clock every day is the amount of electricity sold by the units under the jurisdiction of the power generation enterprise for inter-provincial peak-shaving transactions at each time point at 24 o'clock every day; the electricity price of a power generation enterprise at each time point at 24 o'clock every day is the real-time node electricity price of the units under the jurisdiction of the power generation enterprise at each time point at 24 o'clock every day in the province; the difference between the cumulative amount of electricity cleared by the power dispatching agency at each time point at 24 o'clock every day and the monthly inter-provincial peak-shaving sold transaction electricity is guaranteed by the monthly total leveling electricity price of the power generation enterprise; the monthly total leveling electricity price of the power generation enterprise is the weighted average electricity price of the grid-connected electricity of all power generation enterprises.

[0030] Furthermore, the step five specifically includes: the difference in electricity charges for inter-provincial sales of peak-shaving power by a power generation enterprise = the income from inter-provincial sales of peak-shaving power by a power generation enterprise during non-spot operation + the income from inter-provincial sales of peak-shaving power by a power generation enterprise during spot operation - the expenditure on inter-provincial sales of peak-shaving power by a power generation enterprise.

[0031] The present invention has the following beneficial effects:

[0032] The present invention calculates the peak-shaving difference electricity charges sold between provinces of each power generation enterprise more accurately and reasonably based on the daily clearing electricity volume of inter-provincial peak-shaving transactions sold by each power generation enterprise cleared by the power dispatching organization, the peak-shaving auxiliary service clearing electricity price, the medium- and long-term deviation electricity price of the power generation enterprise, and the daily real-time node electricity price of the spot market within the province of the power generation enterprise, so as to connect the peak-shaving difference electricity charges sold between provinces of the power generation enterprise with the spot operation period, avoid the illegal arbitrage behavior of the power generation enterprise by using the inter-provincial peak-shaving auxiliary service sold during the spot operation period, and maintain the fairness and justice of the power market. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solution in the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 The present invention provides a flow chart of a method for linking the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period. DETAILED DESCRIPTION

[0035] In order to make the purpose and technical solution of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In this embodiment, the dimension of electricity involved is megawatt, the dimension of electricity is megawatt-hour, the dimension of electricity price is yuan / megawatt-hour, and the dimension of electricity fee is yuan. The 24 hours of the day are divided into 96 time points at 15-minute intervals, the first time point is 0:00-0:15 (T1), and the last time point is 23:45-24:00 (T96); divided into 24 time points at 60-minute intervals, the first time point is 0:00-1:00 (corresponding to 96 time points T1-T4), and the last time point is 23:00-24:00 (corresponding to 96 time points T93-T96).

[0037] like Figure 1 As shown, the embodiment of the present invention provides a method for connecting the inter-provincial peak-shaving difference electricity charges sold by a power generation enterprise with the spot operation period, comprising the following steps:

[0038] S1, determine the power generation enterprises that participate in the inter-provincial sale of peak load ancillary services.

[0039] In an embodiment of the present invention, at the beginning of each month, after the electric power dispatching agency has cleared all the results of the inter-provincial sales of peak-shaving auxiliary services transactions of the previous month, it will be determined whether the units of a certain power generation enterprise participating in the inter-provincial sales of peak-shaving auxiliary services transactions organized by the electric power dispatching agency in that month have won the bid. That is, if the units under the jurisdiction of the power generation enterprise have cleared electricity in the inter-provincial sales of peak-shaving auxiliary services results cleared by the electric power dispatching agency, then the bid is won; if there is no cleared electricity or the total cleared electricity is 0, then the bid is not won.

[0040] In the embodiment of the present invention, as shown in Table 1, the total amount of electricity sold for inter-provincial peak-shaving by the #1, #2, and #5 units under the jurisdiction of the A power generation enterprise cleared by the power dispatching agency is 104 MWh at each time point at 24 o'clock every day, that is, the A power generation enterprise participated in the inter-provincial peak-shaving auxiliary service transaction, and the transaction amount was 104 MWh; and the total amount of electricity sold for inter-provincial peak-shaving by the #1 unit under the H power generation enterprise at each time point at 24 o'clock every day was 0 MWh, that is, the H power generation enterprise did not participate in the inter-provincial peak-shaving auxiliary service transaction.

[0041] Table 1

[0042]

[0043] S2, the inter-provincial peak-shaving electricity sold by power generation enterprises is calculated by time period and 24 hours.

[0044] The amount of electricity traded at each time period for peak-shaving sold by a power generation enterprise between provinces = the amount of electricity won by a power generation enterprise at each time period for units sold by the power generation enterprise in the provincial peak-shaving ancillary service exchange; the amount of electricity traded at each time point for peak-shaving sold by a power generation enterprise between provinces = the amount of electricity won by a power generation enterprise at each time point for units sold by the power generation enterprise in the provincial peak-shaving ancillary service exchange.

[0045] According to the adjustment plan of the industrial and commercial time-of-use electricity price mechanism released by Hubei Province, the division of each time period is as follows:

[0046] Peak hours: 20:00-22:00 in July and August, 18:00-20:00 in other months (2 hours in total);

[0047] Peak hours: 16:00-20:00, 22:00-24:00 in July and August, 16:00-18:00, 20:00-24:00 in other months (6 hours in total);

[0048] Normal hours: 6:00-12:00, 14:00-16:00 (8 hours in total);

[0049] Low hours: 0:00-6:00, 12:00-14:00 (8 hours in total).

[0050] In an embodiment of the present invention, as shown in Table 2, based on the inter-provincial peak-shaving auxiliary service transaction results cleared by the power dispatching agency, the inter-provincial peak-shaving transaction electricity sold by the AH power generation enterprise in each period (as shown in Tables 3 and 4), and the inter-provincial peak-shaving transaction electricity sold by the AH power generation enterprise at each time point (as shown in Table 5) can be obtained.

[0051] Table 2

[0052]

[0053]

[0054]

[0055]

[0056] Table 3

[0057]

[0058] Table 4

[0059]

[0060] Table 5

[0061]

[0062]

[0063] S3, calculation of inter-provincial peak-shaving expenditures of power generation enterprises.

[0064] The expenses of a power generation enterprise for inter-provincial peak-shaving sales = the inter-provincial peak-shaving transaction electricity sold by the units under the power generation enterprise × (peak-shaving auxiliary service clearing price + intra-provincial transmission price + inter-provincial transmission price).

[0065] Among them, the inter-provincial peak-shaving transaction electricity sold by the units under the jurisdiction of a certain power generation enterprise and the peak-shaving auxiliary service clearing electricity price of each unit, the provincial transmission price, and the inter-provincial transmission price are all cleared by the provincial power dispatching agency. According to the peak-shaving electricity-price curve, the provincial power dispatching agency sorts the peak-shaving capacity that can be provided by the market entities in the service seller province in each period from high to low according to the price until the peak-shaving demand of the service buyer province in that period is met, forming the marginal clearing price and the winning power. The transaction price is the price declared by the market entity in the service seller province that won the last bid. When the declared price is equal to the marginal clearing price, the winning power is allocated according to the proportion of the peak-shaving capacity that the market entity in the service seller province can provide at that price. When the peak-shaving supply or transmission channel capacity of the market entity in the service seller province does not meet the peak-shaving demand of the service buyer province, the transaction price is the lowest declared price of the market entity in the service seller province that meets the call conditions.

[0066] Electricity = electricity × time (h).

[0067] In an embodiment of the present invention, as shown in Table 6, the inter-provincial peak-shaving expenditure of the AH power generation enterprise = the inter-provincial peak-shaving transaction electricity sold by the units under the AH power generation enterprise × (peak-shaving auxiliary service clearing price + intra-provincial transmission price + inter-provincial transmission price).

[0068] Table 6

[0069]

[0070] S4, calculation of the cost of inter-provincial peak-shaving revenue sold by power generation enterprises.

[0071] (1) Calculation of the cost of inter-provincial peak-shaving revenue from power generation enterprises during non-spot operation

[0072] The revenue expenses of a power generation enterprise from inter-provincial peak-shaving sales during the non-spot period = the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving in each period (peak, peak, flat and valley) × the deviation electricity price of the power generation enterprise in each period (peak, peak, flat and valley) in the medium and long term.

[0073] Among them, the inter-provincial peak-shaving electricity sold in each time period (peak, peak, flat and valley) by a power generation enterprise is the accumulation of the inter-provincial peak-shaving transaction electricity sold by the units under the power generation enterprise in each time period. When the difference between the monthly inter-provincial peak-shaving transaction electricity sold cleared by the power dispatching agency and the total electricity in each time period, the flat period is used as a bottom line. The time periods are divided into peak period: 20:00-22:00 in July and August, 18:00-20:00 in other months; peak period: 16:00-20:00, 22:00-24:00 in July and August, 16:00-18:00, 20:00-24:00 in other months; flat period: 6:00-12:00, 14:00-16:00; valley period: 0:00-6:00, 12:00-14:00.

[0074] The deviation electricity price for power generation enterprises in each period (peak, flat and valley) in the medium and long term is the average contract price for each period of conventional direct transactions (excluding agency power purchase transactions and green electricity transactions) of all power generation enterprises.

[0075] (2) Calculation of the cost of inter-provincial peak-shaving revenue sold by power generation enterprises during spot operation

[0076] The peak-shaving revenue expenses of a power generation enterprise from inter-provincial peak-shaving during the spot period = the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving at each time point at 24 o'clock every day × the electricity price of a power generation enterprise at each time point at 24 o'clock every day.

[0077] Among them, the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving transactions at each time point at 24 o'clock every day is the amount of electricity sold by the units under the jurisdiction of the power generation enterprise for inter-provincial peak-shaving transactions at each time point at 24 o'clock every day; the electricity price of a power generation enterprise at each time point at 24 o'clock every day is the real-time node electricity price of the units under the jurisdiction of the power generation enterprise at each time point at 24 o'clock every day in the province. The difference between the accumulated amount of electricity cleared by the power dispatching agency at each time point at 24 o'clock every day and the monthly inter-provincial peak-shaving transaction electricity sold is guaranteed by the monthly total leveling electricity price of the power generation enterprise. The monthly total leveling electricity price of the power generation enterprise is the weighted average electricity price of the grid-connected electricity of all power generation enterprises.

[0078] In the embodiment of the present invention, as shown in Tables 7, 8 and 9, the AH power generation enterprise has inter-provincial peak-shaving sales and peak-shaving income expenses during the non-spot period and inter-provincial peak-shaving sales and peak-shaving income expenses during the spot period.

[0079] Table 7

[0080]

[0081] Table 8

[0082]

[0083] Table 9

[0084]

[0085]

[0086]

[0087] S5, calculation of the difference in peak-shaving electricity charges sold by power generation enterprises between provinces.

[0088] The difference in electricity charges for inter-provincial sales of peak-shaving power by a power generation enterprise = the income from inter-provincial sales of peak-shaving power by a power generation enterprise during non-spot operation + the income from inter-provincial sales of peak-shaving power by a power generation enterprise during spot operation - the expenditure on inter-provincial sales of peak-shaving power by a power generation enterprise.

[0089] In an embodiment of the present invention, as shown in Table 10, after the AH power generation enterprise calculates according to the above algorithm, the peak-shaving difference electricity charges sold by the power generation enterprise between provinces are as follows.

[0090] Table 10

[0091]

[0092] The present invention can make the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises connected with the spot operation period, avoid the power generation enterprises from using the inter-provincial peak-shaving auxiliary services sold during the spot operation period to conduct illegal arbitrage, and protect the overall interests of the power market.

[0093] The above description is only a preferred embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features applied herein.

Claims

1. A method for linking the inter-provincial peak-shaving difference electricity charges sold by power generation enterprises with the spot operation period, characterized in that: The following steps are involved: Step 1: Identify the power generation enterprises that participate in the inter-provincial sale of peak load ancillary services; Step 2: Calculate the inter-provincial peak-shaving transaction electricity sold by power generation enterprises by time period and 24 hours; Step 3: Calculate the inter-provincial peak-shaving transaction costs of the power generation enterprises based on the inter-provincial peak-shaving transaction electricity sold by the power generation enterprises calculated in step 2; Step 4: Calculate the inter-provincial peak-shaving transaction revenue and expenses of the power generation enterprise based on the inter-provincial peak-shaving transaction electricity sold by the power generation enterprise calculated in step 2; Step 5: Calculate the difference in electricity charges for inter-provincial sales of peak-shaving electricity by the power generation enterprise based on the inter-provincial sales of peak-shaving electricity calculated in step 3 and the inter-provincial sales of peak-shaving income calculated in step 4.

2. The method according to claim 1, characterized in that The step 1 determines the power generation enterprises participating in the inter-provincial sale of peak-shaving auxiliary services, specifically including: determining whether a power generation enterprise is a power generation enterprise participating in the inter-provincial sale of peak-shaving auxiliary services transactions organized by the power dispatching agency in that month based on whether the units of the power generation enterprise have won the bid; if the units of the power generation enterprise have power in the inter-provincial sale of peak-shaving auxiliary services results cleared by the power dispatching agency, the power generation enterprise has won the bid; if the units of the power generation enterprise have no power, the power generation enterprise has not won the bid.

3. The method according to claim 1, characterized in that In the step 2, the inter-provincial peak-shaving transaction electricity sold by power generation enterprises is calculated by time period, including: the inter-provincial peak-shaving transaction electricity sold by a power generation enterprise in each time period = the winning electricity of a certain power generation enterprise participating in the provincial peak-shaving sales of auxiliary service exchanges in each time period; the inter-provincial peak-shaving transaction electricity sold by power generation enterprises is calculated by 24 time points, including: the inter-provincial peak-shaving transaction electricity sold by a certain power generation enterprise at each time point = the winning electricity of a certain power generation enterprise participating in the provincial peak-shaving sales of auxiliary service exchanges at each time point.

4. The method according to claim 3, characterized in that The time periods in step 2 include peak period, peak period, normal period and valley period, as follows: Peak hours: 20:00-22:00 in July and August, 18:00-20:00 in other months; Peak hours: 16:00-20:00, 22:00-24:00 in July and August, 16:00-18:00, 20:00-24:00 in other months; Normal hours: 6:00-12:00, 14:00-16:00; Low hours: 0:00-6:00, 12:00-14:

00.

5. The method according to claim 1, characterized in that The step three specifically includes: the inter-provincial peak-shaving expenditure of a power generation enterprise = the inter-provincial peak-shaving transaction electricity sold by the units under the jurisdiction of a power generation enterprise × (peak-shaving auxiliary service clearing electricity price + intra-provincial transmission price + inter-provincial transmission price); Among them, the inter-provincial peak-shaving transaction electricity sold by the units under the jurisdiction of a power generation enterprise and the peak-shaving auxiliary service clearing electricity prices of each unit, the provincial transmission price, and the inter-provincial transmission price are all cleared by the provincial power dispatching agency; The provincial power dispatching agency sorts the peak-shaving capacity that can be provided by the market players in the seller province in each period from high to low according to the peak-shaving power-price curve, until the peak-shaving demand of the buyer province in that period is met, and forms the marginal clearing price and the winning power. The marginal clearing price refers to the quotation of the last selected generator group in the power market transaction, which is sorted from low to high according to the quotation of the generator group until the power demand of the system is met. The marginal clearing price is used to determine whether the price declared by the power generation enterprise is successful. Only when the declared price of the power generation enterprise is equal to or lower than the marginal clearing price can it win the bid. The transaction price is the price declared by the market entity in the service seller province that finally won the bid; when the declared price is equal to the marginal clearing price, the winning electricity is allocated according to the proportion of the peak-shaving capacity that the market entity in the service seller province can provide under that price; when the peak-shaving supply or transmission channel capacity of the market entity in the service seller province does not meet the peak-shaving demand of the service buyer province, the transaction price is the lowest declared price by the market entity in the service seller province that meets the call conditions.

6. The method according to claim 1, characterized in that The step 4 specifically includes: (1) Calculation of the cost of inter-provincial peak-shaving revenue from power generation enterprises during non-spot operation The revenue and expense of inter-provincial peak-shaving sales during the non-spot period of a power generation enterprise = the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving in each period × the deviation electricity price of the power generation enterprise in each period in the medium and long term; Among them, the inter-provincial peak-shaving electricity sold by a power generation enterprise in each period is the accumulation of the inter-provincial peak-shaving transaction electricity sold by the units under the power generation enterprise in each period. When the difference between the monthly inter-provincial peak-shaving transaction electricity sold by the power dispatching agency and the total electricity in each period is covered by the flat period, each period is divided into peak period: 20:00-22:00 in July and August, 18:00-20:00 in other months; peak period: 16:00-20:00, 22:00-24:00 in July and August, 16:00-18:00, 20:00-24:00 in other months; flat period: 6:00-12:00, 14:00-16:00; trough period: 0:00-6:00, 12:00-14:00; The medium- and long-term deviation electricity price for power generation enterprises in each period is the average contract price for all power generation enterprises in conventional direct transactions in each period, where conventional direct transactions refer to other transaction types excluding agency power purchase transactions and green power transactions; (2) Calculation of the cost of inter-provincial peak-shaving revenue sold by power generation enterprises during spot operation The peak-shaving revenue of a power generation enterprise during the spot period = the amount of electricity sold by a power generation enterprise at each time point of 24 o'clock every day × the electricity price of a power generation enterprise at each time point of 24 o'clock every day; Among them, the amount of electricity sold by a power generation enterprise for inter-provincial peak-shaving at each time point at 24 o'clock every day is the amount of electricity sold by the units under the jurisdiction of the power generation enterprise for inter-provincial peak-shaving transactions at each time point at 24 o'clock every day; the electricity price of a power generation enterprise at each time point at 24 o'clock every day is the real-time node electricity price of the units under the jurisdiction of the power generation enterprise at each time point at 24 o'clock every day in the province; the difference between the cumulative amount of electricity cleared by the power dispatching agency at each time point at 24 o'clock every day and the monthly inter-provincial peak-shaving sold transaction electricity is guaranteed by the monthly total leveling electricity price of the power generation enterprise; the monthly total leveling electricity price of the power generation enterprise is the weighted average electricity price of the grid-connected electricity of all power generation enterprises.

7. The method according to claim 6, characterized in that The step five specifically includes: the difference in electricity charges for inter-provincial sales of peak-shaving power by a power generation enterprise = the income from inter-provincial sales of peak-shaving power by a power generation enterprise during non-spot operation + the income from inter-provincial sales of peak-shaving power by a power generation enterprise during spot operation - the expenditure on inter-provincial sales of peak-shaving power by a power generation enterprise.

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