Electricity market threshold triggering clearing method and related device

Abstract

The invention belongs to the technical field of electricity market clearing, and discloses an electricity market threshold triggering clearing method and a related device, and the method comprises the steps: obtaining the clearing data of an electricity market, classifying the clearing data, and dividing the clearing data into electric energy and electricity charge clearing data and market operation cost clearing data; according to the electric energy electric charge clearing data, a threshold value A is set for the electric energy error electric quantity; according to market operation cost liquidation data, a threshold value B is set for the unbalanced fund proportion of the market operation cost, and a threshold value C is set for the electricity price change of the user side; the threshold value intervals of the threshold value A, the threshold value B and the threshold value C are determined through deviation factor calculation, error electric quantity ratio measurement and calculation and a weighted electricity price change model; according to the threshold value intervals of the threshold value A, the threshold value B and the threshold value C, a recommendation value for triggering the clearing threshold value is given, and clearing is carried out. According to the method, the threshold evaluation model is established, the recommendation value for triggering the clearing threshold is given, and the clearing workload of the electricity market can be remarkably simplified.

Description

Technical Field

[0001] The present invention belongs to the technical field of power market clearing, and particularly relates to a power market threshold-triggered clearing method and related devices. Background Art

[0002] Currently, the main problems faced in power market clearing in China are as follows: There is a lack of a standardized and unified market clearing method, and the handling methods vary greatly in different regions. Generally, methods such as case-by-case discussion and manual processing are used to handle refunds, supplements, and clearing, making it difficult to ensure the timeliness, accuracy, and compliance of market data processing. There is a lack of a recommended method and quantitative evaluation for clearing thresholds in power market clearing;

[0003] In view of the current situation of power market clearing work in various regions, the existing technology is based on the relevant rules of the power market for clearing work, and basically does not consider the threshold-triggered method. As a result, even if the amount to be cleared is extremely small and has a negligible impact on the income and expenditure of market entities, a large-scale clearing still needs to be carried out, significantly increasing the workload of on-site operation and maintenance personnel. Summary of the Invention

[0004] The purpose of the present invention is to provide a power market threshold-triggered clearing method and related devices to solve the problem that the existing technology does not consider the threshold-triggered method, resulting in a large workload for on-site operation and maintenance personnel regardless of the size of the clearing amount.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] In the first aspect, the present invention provides a power market threshold-triggered clearing method, including:

[0007] Obtain the clearing data of the power market, classify the clearing data into electric energy electricity fee clearing data and market operation cost clearing data;

[0008] According to the electric energy electricity fee clearing data, set a threshold A for the electric energy error electricity quantity; according to the market operation cost clearing data, set a threshold B for the imbalance fund ratio of the market operation cost and a threshold C for the change in the user-side electricity price;

[0009] The threshold A, threshold B, and threshold C respectively determine the threshold interval through deviation factor calculation, error electricity quantity ratio measurement, and weighted electricity price change model;

[0010] According to the threshold intervals of the threshold A, threshold B, and threshold C, give the recommended values of the trigger clearing thresholds and conduct clearing.

[0011] Further, the obtaining the clearing data of the power market, classifying the clearing data into electric energy electricity fee clearing data and market operation cost clearing data includes:

[0012] The settlement data includes the settlement of various electricity energy quantities, electricity energy prices, environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment recovery fees and ancillary service fees; the settlement data is divided into electricity energy electricity fee settlement data and market operation fee settlement data, where the electricity energy electricity fee settlement data includes the settlement of various electricity energy quantities and electricity prices; the market operation fee settlement data includes the settlement of environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment recovery fees, and ancillary service fees.

[0013] Further, setting a threshold A for the electricity energy error quantity according to the electricity energy electricity fee settlement data includes:

[0014] When the magnitude of the electricity energy error does not exceed a fixed value and the impact on the unbalanced funds does not exceed the set price, no recovery of various fees is calculated.

[0015] Setting a threshold B for the proportion of unbalanced funds in the market operation fees according to the market operation fee settlement data includes:

[0016] When various electricity fee recoveries occur, if the resulting unbalanced funds do not exceed a fixed percentage of the total unbalanced funds for the month of recovery and refund, no restoration and allocation of historical unbalanced funds are carried out, and they are included in the unbalanced account for the settlement month for unified allocation; if it exceeds the fixed percentage of the total unbalanced funds for the month of recovery, the historical unbalanced funds are restored and allocated.

[0017] Setting a threshold C for the change in the user-side electricity price includes: after recovering and refunding the electricity quantity and price errors on the power generation side, the unified settlement point electricity price on the user side is not adjusted. If the change in the unified settlement point electricity price on the user side exceeds a fixed value, the unified settlement point electricity price on the user side is adjusted.

[0018] Further, the threshold A is calculated through a deviation factor to determine the threshold range, including:

[0019] When the magnitude of the electricity energy error does not exceed a fixed value A and the impact on the unbalanced funds does not exceed the set price, no recovery of various fees is calculated. The magnitude of the electricity energy error is used as the deviation impact factor for market operation costs. The calculation method for the market operation cost deviation amount is as follows:

[0020]

[0021] In the formula:

[0022] E represents the market operation cost shared by an individual; Q corr represents the electricity quantity to be settled after correction; Q orig represents the original settlement electricity quantity; P represents the settlement average price; α represents the deviation impact factor (where 0 ≤ α ≤ 1); k represents the number of power generation enterprises.

[0023] Further, the threshold B is measured through the proportion of error electricity quantity to determine the threshold range, including:

[0024] The unbalanced funds caused by the rule changes in adjacent months are calculated by the proportion of error electricity, and it is required to simultaneously meet that the magnitude of electricity energy error exceeds the set megawatt-hour. The calculation method is as follows:

[0025]

[0026] In the formula:

[0027] E represents the individual's share of the market operation cost; Q corr represents the electricity quantity to be settled after correction; Q orig represents the original settlement electricity quantity; P represents the settlement average price; T represents the measurement threshold; k represents the number of power generation enterprises.

[0028] Furthermore, the threshold C determines the threshold interval through a weighted electricity price change model, including:

[0029] When the change in error electricity quantity exceeds the threshold C, the unified settlement point electricity price on the user side is reflected according to the weighted average of all node electricity prices and time-point electricity quantities on the power generation side. The threshold calculation formula is shown as follows:

[0030]

[0031] In the formula:

[0032] E represents the individual's share of the market operation cost; Q error represents the error electricity quantity; Q orig represents the original settlement electricity quantity; P pre_error represents the single-point settlement average price before the error; D represents the error difference measurement value; P pre_unified represents the unified settlement point average price before the error.

[0033] Furthermore, based on the threshold intervals of threshold A, threshold B, and threshold C, the recommended value of the trigger settlement threshold is given for settlement, including:

[0034] When the actual settlement parameter exceeds threshold A, adjust the electricity energy electricity fee; when it exceeds threshold B, restore the historical unbalanced funds allocation; when it exceeds threshold C, trigger the retroactive adjustment of the user-side electricity price, and dynamically connect the settlement boundaries between provinces and within the province, and between medium- and long-term and spot markets.

[0035] In the second aspect, the present invention provides a power market threshold trigger settlement system, including:

[0036] A data classification module, which is used to obtain the settlement data of the power market, classify the settlement data, and classify it into electricity energy electricity fee settlement data and market operation cost settlement data;

[0037] A threshold setting module, configured to set a threshold A for the electricity energy error quantity according to the electricity energy electricity bill settlement data; set a threshold B for the proportion of unbalanced funds in the market operation cost according to the market operation cost settlement data, and set a threshold C for the user-side electricity price change;

[0038] A threshold calculation module, configured to determine threshold intervals for threshold A, threshold B, and threshold C respectively through deviation factor calculation, error quantity proportion measurement, and weighted electricity price change model;

[0039] An output module, configured to give a recommended value for the trigger settlement threshold according to the threshold intervals of threshold A, threshold B, and threshold C, and perform settlement.

[0040] Further, in the data classification module, the settlement data includes various electricity energy quantities, electricity energy electricity prices, environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment recovery fees, and auxiliary service fees settlement; the settlement data is divided into electricity energy electricity bill settlement data and market operation cost settlement data, where the electricity energy electricity bill settlement data includes the settlement of various electricity energy quantities and electricity prices; the market operation cost settlement data includes the settlement of environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment recovery fees, and auxiliary service fees.

[0041] Further, in the threshold setting module, setting a threshold A for the electricity energy error quantity according to the electricity energy electricity bill settlement data includes:

[0042] When the magnitude of the electricity energy error does not exceed a fixed value and the impact on the unbalanced funds does not exceed the set price, no recovery of various fees is calculated;

[0043] Setting a threshold B for the proportion of unbalanced funds in the market operation cost according to the market operation cost settlement data includes:

[0044] When various electricity bill recoveries occur, if the resulting unbalanced funds do not exceed a fixed percentage of the total unbalanced funds in the month of recovery and refund, no restoration and allocation of historical unbalanced funds are performed, and they are included in the unbalanced account for the settlement month for unified allocation; if it exceeds the fixed percentage of the total unbalanced funds in the month of recovery and refund, the historical unbalanced funds are restored and allocated;

[0045] Setting a threshold C for the user-side electricity price change includes: after recovering and refunding the electricity generation side error quantity and electricity price, the user-side unified settlement point electricity price is not adjusted. If the change in the user-side unified settlement point electricity price exceeds a fixed value, the user-side unified settlement point electricity price is adjusted.

[0046] Further, determining the threshold interval for threshold A through deviation factor calculation includes:

[0047] When the magnitude of the electricity energy error does not exceed the fixed value A and the impact on the unbalanced funds does not exceed the set price, no supplementary charges of various types are calculated. The magnitude of the electricity energy error serves as the influencing factor for the deviation of the market operation cost. The calculation method for the deviation amount of the market operation cost is as follows:

[0048]

[0049] In the formula:

[0050] E represents the market operation cost shared by an individual; Q corr represents the electricity quantity to be cleared after correction; Q orig represents the original settled electricity quantity; P represents the average settlement price; α represents the influencing factor of deviation (where 0 ≤ α ≤ 1); k represents the number of power generation enterprises.

[0051] Furthermore, the threshold B is measured through the proportion of the error electricity quantity to determine the threshold range, including:

[0052] For the unbalanced funds caused by the rule changes in adjacent months, it is calculated through the proportion of the error electricity quantity, and it is necessary to simultaneously meet that the magnitude of the electricity energy error exceeds the set megawatt-hour. The calculation method is as follows:

[0053]

[0054] In the formula:

[0055] E represents the market operation cost shared by an individual; Q corr represents the electricity quantity to be cleared after correction; Q orig represents the original settled electricity quantity; P represents the average settlement price; T represents the measured threshold; k represents the number of power generation enterprises.

[0056] Furthermore, the threshold C is determined through the weighted electricity price change model to determine the threshold range, including:

[0057] When the change in the error electricity quantity exceeds the threshold C, the unified settlement point electricity price on the user side is reflected according to the weighted average value of all node electricity prices and the time-point electricity quantity on the power generation side. The threshold calculation formula is as shown in the following formula:

[0058]

[0059] In the formula:

[0060] E represents the market operation cost shared by an individual; Q error represents the error electricity quantity; Q orig represents the original settled electricity quantity; P pre_error represents the single-point settlement average price before the error; D represents the measured value of the error difference; P pre_unified represents the unified settlement point average price before the error.

[0061] Further, the method for giving a recommended value of the trigger liquidation threshold according to the threshold intervals of threshold A, threshold B, and threshold C for liquidation includes:

[0062] When the actual liquidation parameter exceeds threshold A, adjust the electricity energy electricity fee; when it exceeds threshold B, restore the historical unbalanced fund allocation; when it exceeds threshold C, trigger the retroactive adjustment of the user-side electricity price, and dynamically connect the liquidation boundaries between provinces and within the province, and between medium- and long-term and spot markets.

[0063] In a third aspect, the present invention provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method for triggering liquidation of power market thresholds when executing the computer program.

[0064] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program, and the computer program implements the steps of the method for triggering liquidation of power market thresholds when executed by a processor.

[0065] Compared with the prior art, the present invention has the following technical effects:

[0066] By analyzing the liquidation trigger conditions, the present invention classifies the content and types of liquidation, mainly divided into electricity energy electricity fee liquidation and market operation cost liquidation. For the two different types of liquidation, analyze and design key thresholds, establish a threshold evaluation model for different thresholds, then conduct case calculations on the model, evaluate and confirm the reasonable value range of relevant thresholds, and finally give a recommended value of the trigger liquidation threshold, which can significantly simplify the workload of power market liquidation and provide a quantitative support model and basis for power market liquidation.

[0067] Set reasonable thresholds for key trigger conditions, with the optimization goal of reducing the overall liquidation workload and having a smaller impact on the income and expenditure of individual business entities. When the relevant thresholds are exceeded, carry out liquidation work, which can greatly improve the efficiency of power market operation and simplify the liquidation workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 It is a flowchart of the present invention.

[0069] Figure 2 It is a logic block diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0070] The present invention will be further described below with reference to the accompanying drawings:

[0071] Example 1, please refer to Figure 1 , the present invention provides a method for triggering liquidation of power market thresholds, including:

[0072] Obtain the clearing data of the power market, classify the clearing data into the clearing data of electricity energy electricity charges and the clearing data of market operation expenses;

[0073] According to the clearing data of electricity energy electricity charges, set a threshold A for the error electricity quantity of electricity energy; according to the clearing data of market operation expenses, set a threshold B for the proportion of unbalanced funds in market operation expenses and a threshold C for the change in user-side electricity price;

[0074] The threshold A, threshold B, and threshold C respectively determine the threshold intervals through deviation factor calculation, measurement of the proportion of error electricity quantity, and weighted electricity price change model;

[0075] According to the threshold intervals of the threshold A, threshold B, and threshold C, give the recommended values of the trigger clearing thresholds and conduct clearing.

[0076] According to the reasons for clearing triggers and the trading varieties in the power market, the clearing content includes various electricity energy quantities, electricity energy electricity prices, environmental rights and interests electricity quantities, environmental rights and interests electricity prices, electricity charge clearing, auxiliary service cost clearing, and market operation cost clearing, etc. The above clearing types are generally divided into the clearing of electricity energy electricity charges (including the clearing of electricity energy and electricity prices) and the clearing of market operation expenses, and reasonable thresholds are set for key trigger conditions. The threshold setting aims to reduce the overall clearing workload and have a relatively small impact on the income and expenditure of individual business entities. When the relevant thresholds are exceeded, the clearing work is carried out, which can greatly improve the operation efficiency of the power market and simplify the clearing workload.

[0077] Example 2, please refer to Figure 2 , the present invention provides a method for clearing triggered by thresholds in the power market, specifically including:

[0078] Clearing trigger conditions

[0079] Power market clearing can be divided into three categories according to different reasons for generation: policy adjustment category, measurement error category, and others. Among them, the policy adjustment category: refers to the need for settlement result adjustment due to national policy adjustment, trading rule changes, and reasons such as assessment exemption and temporary electricity price settlement; the measurement error category: refers to the need for settlement result adjustment due to reasons such as meter reading and measurement, resulting in errors in the settlement electricity quantity of business entities; the other category: refers to reasons other than the policy adjustment category and the measurement error category, such as errors in basic data such as files or trading contracts, abnormal platform calculations, such as data loss and data transmission, etc., which require settlement result adjustment. According to the principle of "who generates, who initiates", it is initiated by the business entity with errors or affected, and the power trading institution conducts clearing according to the trading rules.

[0080] Consider the connection between electricity market clearing and settlement, clearing between inter-provincial and intra-provincial markets, and the connection between clearing in the medium- and long-term market and the spot market. Connection between clearing and settlement: Clearing occurs after the settlement statement is released, and the clearing result is released with the settlement statement of the next settlement cycle approaching the completion of the clearing workday; Connection between inter-provincial and intra-provincial market clearing: For provinces without a spot market, the clearing results of the inter-provincial medium- and long-term and spot markets serve as the boundary for the intra-provincial medium- and long-term market clearing; for provinces with a spot market, the clearing results of the inter-provincial medium- and long-term and spot markets serve as the boundary for the intra-provincial medium- and long-term and spot market clearing; Connection between medium- and long-term and spot market clearing: Considering two settlement methods of difference contracts and differential contracts, first conduct spot market clearing and then conduct medium- and long-term market clearing.

[0081] Classification of Clearing Types

[0082] According to the clearing trigger reason and the electricity market trading varieties, the clearing content includes the clearing of various electricity energy quantities, electricity energy prices, environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment and recovery fees, and ancillary service fees.

[0083] Generally, it is divided into electricity energy electricity bill clearing and market operation cost clearing. Among them, electricity energy electricity bill clearing includes the clearing of various electricity energy quantities and electricity prices, and market operation costs include the clearing of environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment and recovery fees, ancillary service fees, etc.

[0084] Key Thresholds

[0085] (1) Electricity Energy Electricity Bill Clearing

[0086] 1) If there is an error in the electricity energy, regardless of the value and type of the error, clear the electricity energy electricity bill.

[0087] 2) When the absolute value of the individual electricity energy error does not exceed a fixed value (threshold A to be measured), only clear the electricity energy part, and the cleared electricity quantity will no longer participate in the sharing and refund of market operation costs.

[0088] 3) When the error electricity quantity can be traced back to a time point, clear the electricity energy electricity bill according to the corresponding node electricity price; when the error electricity quantity cannot be traced back to a time point, the electricity energy electricity bill is cleared according to the monthly average price of the intra-provincial real-time market in the error month.

[0089] 4) When the error electricity quantity does not exceed a fixed value (threshold B to be measured), do not adjust the unified settlement point electricity price on the user side. If there are any objections, the operating entity can propose it and then adjust the unified settlement point electricity price on the user side accordingly.

[0090] 5) For the time-of-use electricity quantity deviation on the user side, clear the electricity energy electricity bill according to the electricity price corresponding to the user price difference adjustment electricity bill calculated in the error period. In principle, do not adjust the user price difference adjustment electricity bill for the electricity quantity error month. If there are major deviations, the grid enterprise will conduct the clearing.

[0091] 6) In case of errors in individual settlement electricity prices, regardless of the magnitude of the value and the type of error, the electricity energy charges shall be liquidated, and the settlement electricity price shall no longer participate in the apportionment and refund calculation of market operation expenses.

[0092] 7) The electricity energy charges shall be liquidated according to the corrected corresponding node electricity prices.

[0093] 8) When conducting liquidation on the user side, various prices involved in calculating market operation expenses, such as the average wholesale electricity energy price and the average retail settlement price of the electricity sales company in the month with electricity quantity errors, shall not be adjusted. If there are any objections, relevant business entities may raise them, and after being jointly confirmed by interested parties, retroactive adjustments shall be made.

[0094] (2) Liquidation of Market Operation Expenses

[0095] 1) In principle, no liquidation shall be carried out on the apportionment or refund items of market operation expenses for market entities. When liquidation is required, the following principles shall be followed: For those apportioned or refunded on both the power generation and user sides, the unilateral apportionment or refund method in the settlement month shall be the same as that in the error month, and the liquidation shall be processed unilaterally; For those apportioned or refunded on both the power generation and user sides, if the unilateral apportionment or refund method in the settlement month is different from that in the error month, the liquidation expenses shall be included in the total amount of this item of market operation expenses in the settlement month for processing.

[0096] 2) When the market operation expenses caused do not exceed the fixed percentage of the total amount of market operation expenses in the liquidation month (threshold C to be measured), no restoration and allocation of historical imbalance funds shall be carried out, and they shall be included in the unified allocation of market operation expenses in the liquidation month; When it exceeds the fixed percentage of the total amount of market operation expenses in the liquidation month, it is necessary to restore and allocate the historical market operation expenses.

[0097] 3) For electricity energy charges such as coal-electricity price replacement electricity charges and user-side price difference adjustment electricity charges that are subject to apportionment or refund, as well as market operation expenses subject to apportionment or refund, when the overall market liquidation amount is less than the fixed percentage in the error occurrence month (threshold C to be measured), the apportionment or refund shall be carried out according to the electricity quantity structure in the refund and settlement month; When the overall market retroactive refund and settlement amount is greater than or equal to the fixed percentage in the error occurrence month, the apportionment or refund shall be carried out according to the electricity quantity structure in the error occurrence month.

[0098] For matters such as the adjustment of green power clearing results, the adjustment of cross-month monthly settlement electricity quantities, and the adjustment of capacity compensation fees, regional electricity markets in each province (autonomous region / municipality directly under the Central Government) may formulate relevant rules for liquidation according to actual situations.

[0099] In summary, the key thresholds to be measured are shown in Table 1.

[0100] Table 1 Key Thresholds to be Measured

[0101]

[0102]

[0103] Threshold Evaluation Model, Case Evaluation and Threshold Recommendation

[0104] (1) Algorithm for calculating threshold A: When the magnitude of the electricity energy error does not exceed a fixed value A (megawatt-hours) and the impact on the unbalanced funds does not exceed 0.1 yuan, various fee recoveries may not be calculated.

[0105] 1) Assume the impact factor of the error electricity quantity on the deviation of the market operation cost. The calculation method of the market operation cost deviation amount is as follows:

[0106]

[0107] In the formula:

[0108] E represents the market operation cost shared by an individual;

[0109] Q corr represents the electricity quantity to be cleared after correction;

[0110] Q orig represents the original settlement electricity quantity;

[0111] P represents the settlement average price;

[0112] α represents the deviation impact factor (where 0 ≤ α ≤ 1);

[0113] k represents the number of power generation enterprises.

[0114] 2) The data calculated by the threshold A algorithm is shown in the following table.

[0115] Table 2 Model Calculation Data of Threshold A

[0116]

[0117]

[0118] 3) Algorithm calculation conclusion: It is considered that when the error electricity quantity does not exceed 0.1 megawatt-hours, so A is equal to 0.1 megawatt-hours, and the impact on the income of the market operation cost part of an individual power generation enterprise does not exceed 0.1 yuan, and the recalculation of the market operation cost can be ignored.

[0119] (2) Algorithm for calculating threshold B: When the unbalanced funds caused do not exceed a fixed percentage (threshold B) of the total unbalanced funds amount in the settlement month, the historical unbalanced funds will no longer be restored and distributed, but will be uniformly distributed into the unbalanced account in the settlement month; when it exceeds a fixed percentage (threshold B) of the total unbalanced funds amount in the settlement month, the historical unbalanced funds need to be restored and distributed.

[0120] 1) Assuming that the impact of the rule changes in adjacent months on various expenses is negligible, the unbalanced funds caused are calculated by the proportion of the error in electricity quantity, and it is necessary to simultaneously meet the condition that the magnitude of the electricity energy error exceeds 0.1 megawatt-hour. The calculation method is as follows:

[0121]

[0122] In the formula:

[0123] E represents the market operation expenses shared by an individual;

[0124] Q corr represents the electricity quantity to be liquidated after correction;

[0125] Q orig represents the original settlement electricity quantity;

[0126] P represents the settlement average price;

[0127] T represents the measurement threshold;

[0128] k represents the number of power generation enterprises.

[0129] 2) The measurement data of the threshold B algorithm is shown in the following table.

[0130] Table 3 Measurement data of the threshold B model

[0131]

[0132]

[0133] 3) Algorithm measurement conclusion: When the rule changes in adjacent months are small, the error in electricity quantity does not exceed 0.1 megawatt-hour, and when the threshold is set at 10%, the impact on the partial income of the market operation expenses of individual power generation enterprises does not exceed 0.01 yuan, and the recalculation of the unbalanced funds can be ignored, greatly improving the market efficiency.

[0134] (3) Measurement threshold C algorithm: When the change in the error in electricity quantity on the power generation side exceeds the threshold C, after the electricity price and other retroactive and compensatory adjustments, the unified settlement point electricity price on the user side is not adjusted. If the impact is large, such as the change in the unified settlement point electricity price exceeds a fixed value, the user side unified settlement point electricity price can be adjusted accordingly after being proposed by the market entity.

[0135] 1) When the change in the error in electricity quantity exceeds the threshold C, it will affect the change in the settlement point electricity price on the user side to exceed 0.0001 yuan / megawatt-hour. At this time, it is considered that the impact on the user side cost can be ignored, and the user side unified settlement point electricity price is reflected by the weighted average of all node electricity prices and time-point electricity quantities on the power generation side. The threshold calculation formula is shown in the following formula.

[0136]

[0137] In the formula:

[0138] E represents the individual's share of the market operation cost;

[0139] Q error represents the error electricity quantity;

[0140] Q orig represents the original settlement electricity quantity;

[0141] P pre_error represents the average single - point settlement price before the error;

[0142] D represents the measured value of the error difference;

[0143] P pre_unified represents the average price of the unified settlement point before the error;

[0144] 2) The measured data of the threshold C algorithm is shown in the following table.

[0145] Table 4 Measured data of the threshold C model

[0146]

[0147] 3) Algorithm measurement conclusion: When the error electricity quantity does not exceed 50 megawatt - hours, the allowable maximum deviation range of the electricity price change does not exceed 0.0001 yuan / megawatt - hour, which is considered to have a relatively small impact on the electricity price of the unified settlement point on the user side.

[0148] In view of the actual business requirements, the present invention conducts research, analysis and measurement on the threshold for key trigger clearing, and conducts quantitative evaluation to improve the work efficiency of power market clearing. A threshold recommendation model and system that can be actually quantitatively evaluated are established, which has important guiding and practical significance for the stable and rapid development of the power market.

[0149] In another embodiment of the present invention, a power market threshold trigger clearing system is provided, which can be used to implement the above - mentioned power market threshold trigger clearing method. Specifically, the system includes:

[0150] A data classification module, which is used to obtain the clearing data of the power market, classify the clearing data, and divide it into electricity energy charge clearing data and market operation cost clearing data;

[0151] A threshold setting module, which is used to set threshold A for the electricity energy error electricity quantity according to the electricity energy charge clearing data; set threshold B for the imbalance fund ratio of the market operation cost according to the market operation cost clearing data, and set threshold C for the electricity price change on the user side;

[0152] A threshold calculation module, which is used to determine the threshold interval of threshold A, threshold B and threshold C respectively through deviation factor calculation, error electricity quantity ratio measurement and weighted electricity price change model;

[0153] An output module, configured to give a recommended value for triggering a liquidation threshold according to the threshold ranges of threshold A, threshold B, and threshold C, and perform liquidation.

[0154] The division of modules in the embodiments of the present invention is illustrative. It is only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present invention, each functional module may be integrated in a processor, may exist separately physically, or two or more modules may be integrated in one module. The above integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0155] In another embodiment of the present invention, a computer device is provided. The computer device includes a processor and a memory. The memory is used to store a computer program. The computer program includes program instructions. The processor is used to execute the program instructions stored in the computer storage medium. The processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, and is suitable for implementing one or more instructions. Specifically, it is suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function. The processor described in the embodiments of the present invention may be used for the operation of a method for triggering liquidation of power market thresholds.

[0156] In another embodiment of the present invention, the present invention further provides a storage medium, specifically a computer-readable storage medium (Memory). The computer-readable storage medium is a memory device in a computer device and is used to store programs and data. It can be understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and, of course, the extended storage medium supported by the computer device. The computer-readable storage medium provides a storage space that stores the operating system of the terminal. And, one or more instructions suitable for being loaded and executed by the processor are also stored in this storage space. These instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. One or more instructions stored in the computer-readable storage medium can be loaded and executed by the processor to implement the corresponding steps of a power market threshold trigger clearing method in the above embodiment.

[0157] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memories, CD-ROMs, optical memories, etc.) containing computer-usable program codes.

[0158] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be realized by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for realizing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0159] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device that realizes the functions in Figure 1 one flow or multiple flows and / or blocksFigure 1 The functions specified in one or more boxes.

[0160] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process. Thus, the instructions executed on the computer or other programmable device provide for implementing the steps of the functions specified in one or more processes and / or boxes Figure 1 One process or more processes and / or boxes Figure 1 The steps of the functions specified in one or more boxes.

[0161] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the specific implementation manners of the present invention can still be modified or equivalently replaced, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A threshold-triggered clearing method for the electricity market, characterized in that Including: Obtain the settlement data of the power market, classify the settlement data into electricity energy tariff settlement data and market operation cost settlement data; According to the electricity energy tariff settlement data, set threshold A for the electricity energy error quantity; according to the market operation cost settlement data, set threshold B for the proportion of unbalanced funds in market operation costs, and set threshold C for the change in user-side electricity price; Threshold A, threshold B, and threshold C respectively determine the threshold intervals through deviation factor calculation, measurement of the proportion of error electricity quantity, and weighted electricity price change model; According to the threshold intervals of threshold A, threshold B, and threshold C, give the recommended values of the trigger settlement threshold and conduct settlement.

2. The power market threshold trigger clearing method according to claim 1, characterized in that The obtaining of the settlement data of the power market and the classification of the settlement data into electricity energy tariff settlement data and market operation cost settlement data include: The settlement data includes the settlement of various electricity energy quantities, electricity energy tariffs, environmental rights and interests electricity quantities, environmental rights and interests tariffs, assessment recovery fees, and auxiliary service fees; the settlement data is divided into electricity energy tariff settlement data and market operation cost settlement data, where the electricity energy tariff settlement data includes the settlement of various electricity energy quantities and tariffs; the market operation cost settlement data includes the settlement of environmental rights and interests electricity quantities, environmental rights and interests tariffs, assessment recovery fees, and auxiliary service fees.

3. A method for triggering clearing of a power market threshold according to claim 1, characterized in that, The setting of threshold A for the electricity energy error quantity according to the electricity energy tariff settlement data includes: When the magnitude of the electricity energy error does not exceed a fixed value and the impact on the unbalanced funds does not exceed the set price, no additional fees are calculated for recovery; The setting of threshold B for the proportion of unbalanced funds in market operation costs according to the market operation cost settlement data includes: When various electricity fee recoveries occur, if the resulting unbalanced funds do not exceed a fixed percentage of the total unbalanced funds in the month of recovery and refund, the historical unbalanced funds are not restored and distributed, but are included in the unbalanced account of the settlement month for unified distribution; if it exceeds the fixed percentage of the total unbalanced funds in the month of recovery, the historical unbalanced funds are restored and distributed; The setting of threshold C for the change in user-side electricity price includes: after the error quantity and price of the power generation side are recovered and refunded, the unified settlement point electricity price on the user side is not adjusted. When the change in the unified settlement point electricity price on the user side exceeds a fixed value, the unified settlement point electricity price on the user side is adjusted.

4. A method for triggering clearing of electricity market thresholds according to claim 1, characterized in that The determination of the threshold interval of threshold A through deviation factor calculation includes: When the magnitude of the electricity energy error does not exceed fixed value A and the impact on the unbalanced funds does not exceed the set price, no additional fees are calculated for recovery. The magnitude of the electricity energy error is used as the deviation impact factor of market operation costs. The calculation method of the market operation cost deviation quantity is as follows: In the formula: E represents the individual's share of the market operation cost; Q corr represents the electricity quantity to be liquidated after correction; Q orig represents the original settlement electricity quantity; P represents the average settlement price; α represents the deviation impact factor (where 0 ≤ α ≤ 1); k represents the number of power generation enterprises.

5. A method for triggering clearing of a power market threshold according to claim 1, characterized in that The determination of the threshold interval of threshold B through measurement of the proportion of error electricity quantity includes: The unbalanced funds caused by the regular changes in adjacent months are calculated through the proportion of error electricity quantity, and it is necessary to simultaneously meet the condition that the magnitude of the electricity energy error exceeds the set megawatt-hour. The calculation method is as follows: In the formula: E represents the individual's share of the market operation cost; Q corr represents the electricity quantity to be settled after correction; Q orig represents the original settlement electricity quantity; P represents the settlement average price; T represents the measurement threshold; k represents the number of power generation enterprises.

6. A method for triggering clearing of electricity market thresholds according to claim 1, characterized in that The determination of the threshold interval of threshold C through the weighted electricity price change model includes: When the change in the error electricity quantity exceeds threshold C, the unified settlement point electricity price on the user side is reflected by the weighted average of all node electricity prices and time-point electricity quantities on the power generation side. The threshold calculation formula is as follows: In the formula: E represents the individual's share of the market operation cost; Q error represents the error electricity quantity; Q orig represents the original settlement electricity quantity; P pre_error represents the average single-point settlement price before the error; D represents the measured value of the error difference; P pre_unified represents the average unified settlement point price before the error.

7. A method for triggering clearing of power market thresholds according to claim 1, characterized in that, The threshold interval based on threshold A, threshold B, and threshold C gives a recommended value for the trigger liquidation threshold for liquidation, including: When the actual liquidation parameter exceeds threshold A, adjust the electricity energy electricity fee; when it exceeds threshold B, restore the historical unbalanced fund allocation; when it exceeds threshold C, trigger the retroactive adjustment of the user-side electricity price, and dynamically connect the liquidation boundaries between provinces and within the province, between medium- and long-term and spot markets.

8. A power market threshold-triggered clearing system, characterized in that Including: A data classification module for obtaining the liquidation data of the electricity market, classifying the liquidation data into electricity energy electricity fee liquidation data and market operation cost liquidation data; A threshold setting module for setting threshold A for the electricity energy error electricity quantity according to the electricity energy electricity fee liquidation data; setting threshold B for the proportion of unbalanced funds in market operation costs and threshold C for the change in user-side electricity price according to the market operation cost liquidation data; A threshold calculation module for determining the threshold interval for threshold A, threshold B, and threshold C respectively through deviation factor calculation, measurement of the proportion of error electricity quantity, and weighted electricity price change model; An output module for giving a recommended value for the trigger liquidation threshold according to the threshold interval of threshold A, threshold B, and threshold C for liquidation.

9. A power market threshold trigger clearing system according to claim 8, characterized in that, In the data classification module, the liquidation data includes the liquidation of various electricity energy quantities, electricity energy electricity prices, environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment recovery fees, and auxiliary service fees; the liquidation data is divided into electricity energy electricity fee liquidation data and market operation cost liquidation data, where the electricity energy electricity fee liquidation data includes the liquidation of various electricity energy quantities and electricity prices; the market operation cost liquidation data includes the liquidation of environmental rights and interests electricity quantities, environmental rights and interests electricity prices, assessment recovery fees, and auxiliary service fees.

10. A power market threshold trigger clearing system according to claim 8, characterized in that, In the threshold setting module, setting threshold A for the electricity energy error electricity quantity according to the electricity energy electricity fee liquidation data includes: When the magnitude of the electricity energy error does not exceed a fixed value and the impact on the unbalanced funds does not exceed the set price, no supplementary recovery of various fees is calculated; Setting threshold B for the proportion of unbalanced funds in market operation costs according to the market operation cost liquidation data includes: When various electricity fee supplementary recoveries occur, if the resulting unbalanced funds do not exceed a fixed percentage of the total unbalanced funds in the month of supplementary recovery and refund, the historical unbalanced funds are not restored and allocated, but are included in the unbalanced account of the settlement month for unified allocation; if it exceeds the fixed percentage of the total unbalanced funds in the month of supplementary recovery, the historical unbalanced funds are restored and allocated; Setting threshold C for the change in user-side electricity price includes: after retroactive adjustment of the electricity quantity and electricity price errors on the power generation side, if the change in the unified settlement point electricity price on the user side does not exceed a fixed value, the unified settlement point electricity price on the user side is not adjusted; if the change in the unified settlement point electricity price on the user side exceeds the fixed value, the unified settlement point electricity price on the user side is adjusted.

11. A power market threshold trigger clearing system according to claim 8, characterized in that, The threshold A is calculated through a deviation factor to determine the threshold interval, including: When the magnitude of the electricity energy error does not exceed fixed value A and the impact on the unbalanced funds does not exceed the set price, no supplementary recovery of various fees is calculated, and the magnitude of the electricity energy error is used as the deviation impact factor of market operation costs. The calculation method of the market operation cost deviation amount is as follows: Where: E represents the individual's share of the market operation cost; Q corr represents the electricity quantity to be liquidated after correction; Q orig represents the original settlement electricity quantity; P represents the average settlement price; α represents the deviation impact factor (where 0 ≤ α ≤ 1); k represents the number of power generation enterprises.

12. A power market threshold trigger clearing system according to claim 8, characterized in that, The threshold B is determined through measurement of the proportion of error electricity quantity to determine the threshold interval, including: The unbalanced funds caused by the rule changes in adjacent months are calculated by the proportion of the error electricity quantity, and it is required to simultaneously meet that the magnitude of the electricity energy error exceeds the set megawatt-hour. The calculation method is as follows: In the formula: E represents the individual's share of the market operation cost; Q corr represents the electricity quantity to be liquidated after correction; Q orig represents the original settlement electricity quantity; P represents the settlement average price; T represents the measurement threshold; k represents the number of power generation enterprises.

13. A power market threshold-triggered clearing system according to claim 8, characterized in that, The threshold C determines the threshold interval through the weighted electricity price change model, including: When the change in the error electricity quantity exceeds the threshold C, the unified settlement point electricity price on the user side is reflected by the weighted average of the electricity prices of all nodes on the power generation side and the electricity quantity at the time point. The threshold calculation formula is shown as follows: In the formula: E represents the individual's share of the market operation cost; Q error represents the error electricity quantity; Q orig represents the original settlement electricity quantity; P pre_error represents the average single-point settlement price before the error; D represents the measured error difference value; P pre_unified represents the average price of the unified settlement point before the error.

14. A power market threshold trigger clearing system according to claim 8, characterized in that, According to the threshold intervals of the threshold A, the threshold B, and the threshold C, a recommended value for the trigger settlement threshold is given for settlement, including: When the actual settlement parameter exceeds the threshold A, the electricity energy electricity fee is adjusted; when it exceeds the threshold B, the historical unbalanced funds allocation is restored; when it exceeds the threshold C, the electricity price retroactive adjustment on the user side is triggered, and the settlement boundaries between inter-provincial and intra-provincial, medium- and long-term and spot markets are dynamically connected.

15. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, the steps of a power market threshold trigger settlement method according to any one of claims 1 to 7 are implemented.

16. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, the steps of a power market threshold trigger settlement method according to any one of claims 1 to 7 are implemented.

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