A settlement system for a power spot market facing a power seller

Abstract

The application discloses a kind of for electric power spot market settlement system of facing power selling company, including login information input module, the identity verification module of pre-stored authorized power selling company information, initialization data for obtaining metering electricity data, settlement data acquisition module of declaration data;And with the interactive interface of above-mentioned module all has electricity bill settlement module, the electricity bill settlement module is used for electricity settlement, according to initialization data from settlement data initialization module acquisition initialization data output initial electricity settlement bill, check electricity settlement bill and generate the release information of facing power selling company;Release to power selling company.The application embodiment provided for electric power spot market settlement system of facing power selling company, effectively improve the efficiency of power spot market power selling company settlement clearing, reduce the settlement clearing risk in spot market, it can greatly improve the efficiency and risk prevention ability of power selling company settlement clearing link when being applied in spot market settlement clearing.

Description

Technical Field

[0001] This invention relates to the field of electricity spot market settlement, and more specifically to a settlement system for electricity spot market transactions with electricity sales companies. Background Technology

[0002] The modern electricity market system comprises the electricity spot market, the medium- and long-term direct trading market, and the electricity futures derivatives market. Under the current power sector reform in my country, the electricity spot market has begun its pilot program. The electricity spot market mainly includes day-ahead, intraday, and real-time trading markets for electricity energy and ancillary services such as reserves. Since 2019, my country has launched its first batch of eight pilot electricity spot markets.

[0003] The risks and market changes in the electricity spot market have their own unique characteristics. For example, electricity spot trading must ensure supply and demand balance, and electricity spot delivery must always meet grid security constraints. In a spot environment, due to the increase in trading varieties, trading frequency, large price fluctuations, and short trading cycles, new challenges are brought to power generation companies, electricity sales companies, and electricity users. For electricity sales companies, the operational technology of the electricity spot market needs to be improved, and the risks in the spot market are difficult to predict. Current settlement management systems are mostly designed based on the existing market, and these systems have weak risk control and hedging capabilities in the context of the spot market. Therefore, it is necessary to build a settlement system and method for the electricity spot market that has risk control capabilities for electricity sales companies. Summary of the Invention

[0004] This invention provides a settlement system for electricity sales companies in the electricity spot market, in order to improve the settlement efficiency and risk control capabilities of electricity sales companies in the electricity spot market.

[0005] This invention provides a settlement system for electricity spot market customers targeting electricity retailers, characterized by comprising:

[0006] The module includes: settlement data acquisition module, electricity sales company clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module.

[0007] The login information input module and the identity verification module are connected through an information interaction interface;

[0008] The identity verification module is connected to the electricity sales company's clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module through information interaction interfaces.

[0009] The settlement data acquisition module is sequentially connected to the electricity sales company's clearing limit quantification module, electricity bill settlement module, and electricity sales company's credit assessment module through information interaction interfaces.

[0010] The electricity bill settlement module is sequentially connected to the electricity sales company's clearing limit quantification module, the deposit bill settlement and clearing module, the electricity bill default processing module, and the bill error processing module through information interaction interfaces.

[0011] The electricity sales company's clearing limit quantification module and the margin bill settlement and clearing module are connected through an information interaction interface;

[0012] The margin bill settlement and clearing module is sequentially connected to the margin bill default processing module and the bill error processing module through information interaction interfaces.

[0013] The electricity bill default processing module is connected to the guaranteed power supply module through an information interaction interface;

[0014] The deposit bill default processing module is connected to the guaranteed power supply module through an information interaction interface;

[0015] Preferably, the login information input module provides an input interface for users to input login information;

[0016] Preferably, the authentication module pre-stores information on authorized electricity sales companies; the authentication module is used to compare the login information with the pre-stored information on authorized electricity sales companies to determine whether the user is an authorized electricity sales company.

[0017] Preferably, the settlement data acquisition module is used to acquire initialization data, including initialization data of metered electricity data and declaration data; the settlement data acquisition module includes a first mode setting unit for setting the settlement mode. When set to agent settlement mode, it receives metered electricity data from the marketing system of an external power grid company; when set to independent settlement mode, it receives metered electricity data from an external settlement and clearing institution; the declaration data is acquired from the external spot market trading system and the external retail system.

[0018] Preferably, the electricity bill settlement module is used for electricity bill settlement and the issuance of electricity bills by the electricity sales company. The electricity bill settlement module includes a second mode setting unit for setting the settlement mode. When set to agency settlement mode, the difference in electricity charges between the wholesale market and the retail market of the electricity sales company is used as the electricity bill settlement result. When set to independent settlement mode, the net electricity charges in the wholesale market of the electricity sales company are used as the electricity bill settlement result. The electricity bill settlement module outputs an initial electricity bill settlement statement based on initialization data obtained from the settlement data initialization module. The electricity bill settlement module includes a bill verification and release unit for verifying the electricity bill settlement statement and generating release information for the electricity sales company; releasing the information to the electricity sales company; in a preferred embodiment, the release information includes a settlement period.

[0019] Preferably, under the agency settlement and clearing mode, the electricity bill settlement module outputs the corresponding electricity bill settlement result from the electricity sales company. Specifically:

[0020]

[0021] i∈[1,N]

[0022] Where N represents the number of all electricity retailers in the spot market, and AG represents the differential settlement electricity fee. This refers to the difference in electricity charges between the wholesale and retail markets for electricity sales company i within the settlement period T, abbreviated as wholesale-retail profit margin. RM represents the retail market. Let WM represent the retail market electricity sales revenue of electricity sales company i within the settlement period T, and WM represent the wholesale market. This represents the cost of electricity purchased by electricity sales company i from the wholesale market within the settlement period T.

[0023] Preferably, in the independent settlement and clearing mode, the electricity bill settlement module outputs the corresponding electricity bill settlement result from the electricity sales company. Specifically:

[0024]

[0025] i∈[1,N]

[0026] Here, IN indicates net settlement of electricity charges, and WM indicates wholesale market. This refers to the net portion of electricity charges for the wholesale market of electricity sales company i within the settlement period T.

[0027] Preferably, the electricity sales company credit assessment module receives financial information, wholesale market transaction information, and retail market retail information of the electricity sales company sent by the settlement data acquisition module as initial data for the credit assessment model. This module is used to obtain the initial credit value, annual credit value, periodic credit value, and total credit value of the electricity sales company that has passed identity verification, based on a preset credit assessment model. It is also used to determine the credit risk level of the corresponding electricity sales company based on a preset mapping model and the initial, annual, periodic, and total credit values. Furthermore, it is used to set the tangible net asset ratio coefficient of the corresponding electricity sales company according to preset rules based on the information risk level, and to obtain the unsecured credit limit value of the corresponding electricity sales company based on a preset credit limit model.

[0028] Preferably, the credit limit model of the electricity sales company credit assessment module is specifically expressed as follows:

[0029]

[0030] i∈[1,N]

[0031] in, For the unsecured credit line of electricity sales company i, λ represents the tangible net assets of electricity sales company i. i This is the ratio of tangible net assets of electricity sales company i.

[0032] Preferably, the power sales company clearing limit quantification module receives wholesale market transaction information and retail market retail information sent by the settlement data acquisition module, and receives electricity bill settlement information sent by the electricity bill settlement module. The power sales company clearing limit quantification module is preset with a power sales company risk quantification model. The power sales company clearing limit quantification module uses the aforementioned acquired wholesale market transaction information, retail market retail information, and electricity bill settlement information as the initial data for the power sales company risk quantification model. Based on the credit risk level of the corresponding power sales company, the module uses the power sales company risk quantification model to obtain the risk quantification value of the corresponding power sales company, which is then used as the clearing limit of the corresponding power sales company.

[0033] Preferably, the margin bill settlement and clearing module is used to obtain the unsecured credit limit of the power sales company and the margin amount payable by the power sales company using a preset margin model based on the clearing limit output by the power sales company's clearing limit quantification module and the unsecured credit limit output by the power sales company's credit assessment module; and is used to calculate the margin shortfall of the power sales company based on the electricity bill settlement bill output by the electricity bill settlement module; the margin bill settlement and clearing module includes a margin settlement bill generation unit, which is used to generate and verify the margin settlement bill based on the margin amount payable by the power sales company, and publish it to the power sales company; in a preferred embodiment, the published information includes the margin bill clearing period.

[0034] Preferably, the amount of guarantee that the electricity sales company should pay is:

[0035]

[0036] i∈[1,N]

[0037] Where Se represents the margin. Lim represents the credit limit for the guarantee amount payable by electricity sales company i. The result of the risk quantification calculation for electricity sales company i is the liquidation limit of the electricity sales company, where Uns represents unsecured credit. This refers to the unsecured credit line for electricity sales company i.

[0038] Preferably, the electricity bill default processing module is used to generate electricity bill default information of the electricity sales company; in a preferred embodiment, the electricity bill default processing module further includes a publishing module, used to send the electricity bill default information of the electricity sales company to the electricity sales company and / or an external public disclosure platform according to preset rules; in a preferred embodiment, the electricity bill default processing module further includes a default level determination module, used to obtain the default level of the electricity sales company based on the overdue electricity bill duration and a preset threshold.

[0039] Preferably, the default level determination module of the electricity bill default processing module is used to determine whether the electricity sales company has paid the electricity bill after the overdue payment status ends. If not, the electricity sales company is determined to be in a first-level default status; and a prompt message is sent to the external settlement and clearing institution; upon receiving the prompt message, the external settlement and clearing institution outputs an instruction to use the deposit paid by the electricity sales company to pay the electricity bill.

[0040] Preferably, the default level determination module of the electricity bill default processing module determines that the corresponding electricity sales company is in a level two default state when it receives the electricity bill shortfall information from the external clearing and settlement institution; wherein, the electricity bill shortfall information is issued when the electricity bill still has a shortfall after the electricity sales company has paid the deposit to pay the electricity bill.

[0041] Preferably, the deposit bill default processing module is used to generate deposit bill default information of the power sales company according to preset rules and send it to the power sales company and / or external publicity platform when the power sales company fails to complete the deposit settlement within the deposit bill settlement period.

[0042] Preferably, the guaranteed power supply module is used to provide guaranteed power supply to a preset guaranteed power sales company under preset conditions and according to preset rules; the preset conditions include the power sales company's default on electricity bills and / or default on deposit bills resulting in suspension of trading, and receiving external input confirmation information of the guaranteed power supply plan.

[0043] Preferably, the billing error processing module is used to update the electricity bill and / or security deposit bill for errors based on the received error processing application within the set error processing period; for example, if the user's actual electricity consumption is inconsistent with the electricity consumption on the settlement bill due to metering or meter reading errors, the billing error processing module updates the electricity bill according to the transaction information of the settlement cycle and the correct electricity consumption after approval.

[0044] Based on the aforementioned settlement system for the electricity spot market targeting electricity retailers, a settlement method for the electricity spot market targeting electricity retailers is implemented.

[0045] The settlement system for electricity sales companies in the electricity spot market proposed in this invention avoids cumbersome data transmission and data field conversion processes by initializing and transmitting settlement-related data in each module and generating settlement and clearing bills. This reduces unnecessary confirmation of settlement-related data and bills, effectively improving the settlement and clearing efficiency of electricity sales companies in the electricity spot market. Because the electricity sales company credit assessment module reasonably evaluates the credit level of the electricity sales company, and the clearing limit quantification module reasonably quantifies the expected risk of the electricity sales company, the margin bill settlement and clearing module designed based on the credit assessment results and risk quantification results ensures the efficient and orderly completion of the electricity bill settlement and clearing process. Meanwhile, the bill default handling module, bill error handling module, and guaranteed power supply module play a supporting role in the settlement and clearing work of the spot market, effectively reducing the settlement and clearing risks in the spot market. Applying the entire settlement and clearing system and its construction method to the settlement and clearing of the spot market can greatly improve the efficiency and risk prevention capabilities of the electricity sales company's settlement and clearing process. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is one of the settlement system architecture diagrams for electricity spot market companies provided by embodiments of the present invention;

[0048] Figure 2 This is a schematic diagram of the agency settlement and clearing model in the settlement system for electricity spot market for electricity sales companies provided by an embodiment of the present invention.

[0049] Figure 3 This is a schematic diagram of an independent settlement and clearing mode in a settlement system for electricity spot market companies provided by an embodiment of the present invention;

[0050] Figure 4 This is a schematic diagram of electricity bill settlement and clearing for electricity retailers in a settlement system for the electricity spot market provided by an embodiment of the present invention.

[0051] Figure 5 This is the second diagram of the settlement system architecture for electricity spot market companies provided by the embodiments of the present invention;

[0052] Figure 6 This is a diagram of the credit assessment index system for electricity sales companies in the settlement system for electricity spot market provided by an embodiment of the present invention;

[0053] Figure 7 This is the third of the settlement system architecture diagrams for electricity spot market companies provided by the embodiments of the present invention;

[0054] Figure 8 This is the fourth diagram of the settlement system architecture for electricity spot market for electricity sales companies provided in this embodiment of the invention;

[0055] Figure 9 This is the fifth diagram of the settlement system architecture for electricity spot market for electricity sales companies provided in this embodiment of the invention;

[0056] Figure 10 This is a schematic diagram of electricity bill default processing in a settlement system for electricity sales companies in the electricity spot market, provided by an embodiment of the present invention.

[0057] Figure 11 This is the sixth diagram of the settlement system architecture for electricity spot market for electricity sales companies provided in this embodiment of the invention;

[0058] Figure 12 This is a schematic diagram of the design of a margin bill settlement and clearing and default handling method in a settlement system for electricity spot market for electricity sales companies provided by an embodiment of the present invention;

[0059] Figure 13 This is the seventh diagram of the settlement system architecture for electricity spot market for electricity sales companies provided in this embodiment of the invention;

[0060] Figure 14 This is a schematic diagram of a method for a power sales company's guaranteed power supply module in a settlement system for power spot markets provided by an embodiment of the present invention.

[0061] Figure 15 This is the eighth diagram of the settlement system architecture for electricity spot market for electricity sales companies provided in this embodiment of the invention;

[0062] Figure 16 This is a schematic diagram of the electricity sales company billing error module method in the settlement system for electricity spot market for electricity sales companies provided by an embodiment of the present invention. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0064] In the following description, specific embodiments of the invention will be illustrated with reference to steps and symbols performed by one or more computers, unless otherwise stated. Therefore, these steps and operations will be performed by a computer, and computer execution as referred to herein includes operations by a computer processing unit representing electronic signals of data in a structured format. This operation transforms the data or maintains it at a location in the computer's memory system, which can be reconfigured or otherwise altered in a manner well known to those skilled in the art. However, the principles of the invention described above are not intended to be limiting, and those skilled in the art will understand that many of the steps and operations described below can also be implemented in hardware.

[0065] The term "module" as used herein can be considered as a software object executing on a computing system. The apparatus and methods described herein are preferably implemented in software, but can also be implemented in hardware, both of which are within the scope of this invention.

[0066] The following is in conjunction with the appendix Figure 1 To be continued Figure 16 This invention provides a settlement system for electricity spot market companies, based on specific embodiments of the present invention.

[0067] This embodiment provides a settlement system for electricity spot market customers targeting electricity retailers, and its system framework is as follows: Figure 1 As shown, it includes:

[0068] The module includes: settlement data acquisition module, electricity sales company clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module.

[0069] The login information input module and the identity verification module are connected through an information interaction interface;

[0070] The identity verification module is connected to the electricity sales company's clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module through information interaction interfaces.

[0071] The settlement data acquisition module is sequentially connected to the electricity sales company's clearing limit quantification module, electricity bill settlement module, and electricity sales company's credit assessment module through information interaction interfaces.

[0072] The electricity bill settlement module is sequentially connected to the electricity sales company's clearing limit quantification module, the deposit bill settlement and clearing module, the electricity bill default processing module, and the bill error processing module through information interaction interfaces.

[0073] The electricity sales company's clearing limit quantification module and the margin bill settlement and clearing module are connected through an information interaction interface;

[0074] The margin bill settlement and clearing module is sequentially connected to the margin bill default processing module and the bill error processing module through information interaction interfaces.

[0075] The electricity bill default processing module is connected to the guaranteed power supply module through an information interaction interface;

[0076] The deposit bill default processing module is connected to the guaranteed power supply module through an information interaction interface.

[0077] The aforementioned settlement data acquisition module, electricity sales company clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module all use servers.

[0078] The login information input module provides an input interface for users to enter their login information.

[0079] The authentication module pre-stores information on authorized electricity sales companies. This authentication module is used to compare the login information with the pre-stored information on authorized electricity sales companies to determine whether the user is an authorized electricity sales company. If the comparison results match, the electricity sales company is allowed to log in to the system; if the comparison results do not match, the electricity sales company is not allowed to log in to the system.

[0080] The settlement data acquisition module is used to acquire initialization data, including initialization data of metered electricity data from external marketing systems, transaction data from external spot market trading systems, and retail data from external retail systems. The settlement data acquisition module includes a first mode setting unit for setting the settlement mode. When set to agent settlement mode, it receives metered electricity data from external power grid enterprise marketing systems; when set to independent settlement mode, it receives metered electricity data from external settlement and clearing institutions. The declaration data is acquired from external spot market trading systems and external retail systems.

[0081] In one embodiment, the aforementioned agency settlement and clearing model specifically refers to a situation where the electricity sales company does not clear retail funds with its retail customers, but instead the power grid company acts as an agent for clearing retail users' funds. A schematic diagram of the agency settlement and clearing model is shown in one example. Figure 2 As shown in the diagram. The aforementioned independent settlement and clearing model specifically refers to the settlement of retail funds between the electricity sales company and its retail customers, with the electricity sales company independently assuming responsibility for collecting electricity fees from end-user retailers. In one example, a schematic diagram of the independent settlement and clearing model is shown below. Figure 3 As shown, a settlement and clearing institution can be a unified organization in the electricity spot market that undertakes market functions such as issuing settlement invoices and clearing business funds.

[0082] The electricity bill settlement module is used for electricity bill settlement and the issuance of electricity bills by the electricity sales company. This module includes a second mode setting unit for setting the settlement mode. When set to agency settlement mode, the difference between the electricity cost in the wholesale market and the retail market is used as the electricity bill settlement result. When set to independent settlement mode, the net electricity cost in the wholesale market is used as the electricity bill settlement result. The module outputs an initial electricity bill settlement statement based on initialization data obtained from the settlement data initialization module. The module also includes a bill verification and release unit for verifying the electricity bill settlement statement and generating release information for the electricity sales company. The statement is then released to the electricity sales company. In a preferred embodiment, the release information includes a settlement period. The electricity bill settlement and settlement module automatically generates an initial electricity bill settlement statement, which is then simultaneously released to the electricity sales company after verification, requiring the company to settle the electricity bill amount within a specified date. The electricity bill settlement and settlement cycle for the electricity sales company is illustrated below. Figure 4 As shown.

[0083] In one embodiment, under the agency settlement and clearing mode, the electricity bill settlement module outputs the corresponding electricity bill settlement result from the electricity sales company. Specifically:

[0084]

[0085] i∈[1,N]

[0086] Where N refers to the number of electricity sales companies in the spot market, and AG represents the differential settlement electricity fee. This refers to the difference in electricity charges between the wholesale and retail markets for electricity sales company i within the settlement period T, where RM represents the retail market. This refers to the retail electricity sales revenue of electricity sales company i within the settlement period T, where WM represents the wholesale market. This represents the cost of electricity purchased by electricity sales company i from the wholesale market within the settlement period T.

[0087] In another embodiment, under the independent settlement and clearing mode, the electricity bill settlement module outputs the corresponding electricity bill settlement result from the electricity sales company. Specifically

[0088] Here, IN indicates net settlement of electricity charges, and WM indicates wholesale market. This refers to the net portion of electricity charges for the wholesale market of electricity sales company i within the settlement period T.

[0089] In one embodiment, the billing method of the electricity billing settlement module may include one or more of the following: medium- and long-term contract billing method, day-ahead electricity billing method, real-time electricity billing method, unbalanced funds billing method, and retail billing method.

[0090] Another embodiment provides a settlement system for electricity spot market customers targeting electricity retailers, preferably further including a credit assessment module for electricity retailers, as shown in the system block diagram below. Figure 5 As shown, the electricity sales company credit assessment module receives financial information, wholesale market transaction information, and retail market retail information from the settlement data acquisition module as initial data for the credit assessment model. This module is used to obtain the initial credit value, annual credit value, periodic credit value, and total credit value of the electricity sales company that has passed identity verification, based on a preset credit assessment model. It is also used to determine the credit risk level of the corresponding electricity sales company based on a preset mapping model and the initial, annual, periodic, and total credit values. Furthermore, it is used to set the tangible net asset ratio coefficient of the corresponding electricity sales company according to preset rules based on the information risk level. Finally, it is used to obtain the unsecured credit limit value of the corresponding electricity sales company based on a preset credit limit model.

[0091] The credit assessment module for electricity sales companies can evaluate creditworthiness using quantitative, qualitative, and risk statistical indicators. Quantitative indicators consist of financial and market indicators. Financial indicators primarily include scale, capital structure, liquidity, operational capacity, and profitability. Market indicators mainly include electricity volume structure, market business structure, retail customer retention rate, electricity market transaction revenue, electricity market transaction net profit, transaction revenue growth rate, and transaction net profit growth rate. Qualitative indicators mainly include the electricity sales company's external financing capacity, corporate governance, personnel structure, financial management, creditworthiness, risk control, major events, and industry environment. Risk statistical indicators mainly include the number of electricity bill settlement defaults, the number of overdue electricity bill settlements, the number of margin settlement defaults, and the number of overdue margin settlements. Figure 6 An example is provided.

[0092] In one embodiment of the settlement system for electricity spot market transactions with electricity retailers, the credit limit model of the electricity retailers' credit assessment module is specifically expressed as follows:

[0093]

[0094] i∈[1,N]

[0095] Here, Uns indicates unsecured credit. For the unsecured credit line of electricity sales company i, λ represents the tangible net assets of electricity sales company i. i This is the ratio of tangible net assets of electricity sales company i.

[0096] Another embodiment provides a settlement system for electricity spot market customers, as shown in the system block diagram below. Figure 7 As shown, the electricity sales company clearing limit quantification module receives wholesale market transaction information and retail market retail information sent by the settlement data acquisition module, and receives electricity bill settlement and clearing information sent by the electricity bill settlement module. This module has a preset electricity sales company risk quantification model. It uses the aforementioned wholesale market transaction information, retail market retail information, and electricity bill settlement and clearing information as initial data for the electricity sales company risk quantification model. Based on the credit risk level of the corresponding electricity sales company, it adopts the risk quantification model to obtain the corresponding risk quantification value for the electricity sales company, which is then used as the clearing limit for that company. The guaranteed risk quantification value obtained by this module covers potential risks that the settlement and clearing institution cannot bear.

[0097] In practical applications, the product dimensions used to obtain the potential credit risk of electricity sales companies through risk quantification models can also involve electricity trading and related derivatives, including medium- and long-term trading, day-ahead trading, real-time trading, futures and options trading, etc.; ancillary services and transmission and distribution services, including frequency regulation services, backup services, black start services, transmission rights services, etc.; and services provided by market operation structures and management structures, including market management-related fees and transaction service-related fees, etc.

[0098] In practical applications, the time dimension of the electricity sales company risk quantification model used to obtain the potential credit risk of the electricity sales company can involve debts that have been traded but have not yet been billed, which can be further divided into the unpaid portion of the bills and the portion for which bills have not yet been issued; and debts that have not yet been traded but may incur future expenses, which can be further divided into debts that may be incurred from the period from default to the termination of market activities and debts that may be incurred during the period of subsequent transaction processing after the termination of market activities.

[0099] Another embodiment provides a settlement system for electricity spot market customers, as shown in the system block diagram below. Figure 8 As shown, the margin bill settlement and clearing module is used to obtain the unsecured credit limit of the power sales company and the margin amount payable by the power sales company using a preset margin model, based on the clearing limit output by the power sales company's clearing limit quantification module and the unsecured credit limit output by the power sales company's credit assessment module; and is used to calculate the margin shortfall of the power sales company based on the electricity bill settlement bill output by the electricity bill settlement module; the margin bill settlement and clearing module includes a margin settlement bill generation unit, used to generate and verify a margin settlement bill based on the margin amount payable by the power sales company, and publish it to the power sales company; in a preferred embodiment, the published information includes the margin bill clearing period. After each update output by the electricity bill settlement module, the margin bill settlement and clearing module updates the margin shortfall of the power sales company, automatically generates a margin settlement bill, and publishes it to the power sales company simultaneously after bill verification, requiring the power sales company to clear the margin bill amount within a specified date.

[0100] In one embodiment, the settlement system for the electricity spot market, which processes the guarantee amount payable by the electricity retailer, determines the amount payable by the retailer.

[0101] i∈[1,N]

[0102] Where Se represents the margin. Lim represents the credit limit for the guarantee amount payable by electricity sales company i. The result of the risk quantification calculation for electricity sales company i is the liquidation limit of the electricity sales company, where Uns represents unsecured credit. This refers to the unsecured credit line for electricity sales company i.

[0103] Another embodiment provides a settlement system for electricity spot market customers, as shown in the system block diagram below. Figure 9 As shown, the electricity bill default processing module is used to generate electricity bill default information of the electricity sales company; the electricity bill default processing module also includes a publishing module, which is used to send the electricity bill default information of the electricity sales company to the electricity sales company and / or an external public platform according to preset rules; the electricity bill default processing module also includes a default level determination module, which is used to obtain the default level of the electricity sales company according to the overdue electricity bill and a preset threshold.

[0104] After each update output of the electricity bill settlement module, if the electricity sales company fails to settle the electricity bill with the settlement and clearing institution on time, the electricity bill default processing module will send the electricity sales company's electricity bill default information to the market for public disclosure. After the disclosure period, the electricity bill will enter the overdue payment status. If the overdue payment period ends and the bill is still not fully settled, the electricity bill default processing will be carried out.

[0105] In another embodiment, the default level determination module of the electricity bill default processing module is used to determine whether the electricity sales company has made up the outstanding electricity bill after the overdue payment status ends. If not, the electricity sales company is determined to be in a Level 1 default status; and a reminder message is sent to the external settlement and clearing institution. Upon receiving the reminder message, the external settlement and clearing institution outputs an instruction to use the electricity sales company's deposit to pay the electricity bill. Another default level determination module of the electricity bill default processing module, upon receiving electricity bill shortfall information from the external settlement and clearing institution, determines the corresponding electricity sales company to be in a Level 2 default status; wherein, the electricity bill shortfall information is issued when there is still a shortfall in the electricity bill after the electricity sales company has paid the deposit. Figure 10 The image shows a schematic diagram of the electricity bill default handling process.

[0106] Another embodiment provides a settlement system for electricity spot market customers, as shown in the system block diagram below. Figure 11 As shown, the margin bill default processing module is used to generate margin bill default information for the electricity sales company according to preset rules and send it to the electricity sales company and / or an external public disclosure platform when the electricity sales company fails to complete the margin settlement within the margin bill settlement period. If the electricity sales company fails to conduct margin settlement with the settlement and clearing institution on schedule, it will be publicly disclosed to the market. After the disclosure period, it will enter the margin overdue payment status. If the margin is still not fully settled after the overdue payment period ends, the margin bill default processing will be initiated as follows:

[0107] (1) Receive default notices from the settlement and clearing institution to the electricity sales company;

[0108] (2) Receive information from the electricity sales company on its timely payment and send it to the settlement and clearing institution to determine whether the deposit requirement has been met and receive the electricity sales company's request for an extension;

[0109] (3) If the electricity sales company fails to meet the margin requirements, it shall receive a suspension order or an order to reassess the credit level of the electricity sales company from the settlement and clearing institution.

[0110] (4) Issue a suspension notice to the electricity sales company or an instruction to reassess the creditworthiness of the electricity sales company.

[0111] In a specific example, the margin statement settlement and default handling process is as follows: Figure 12 As shown.

[0112] Another embodiment provides a settlement system for electricity spot market customers, as shown in the system block diagram below. Figure 13 As shown, the guaranteed power supply module is used to provide guaranteed power supply to preset guaranteed power sales companies according to preset rules under preset conditions. The preset conditions include the power sales company being suspended due to default on electricity bills and / or deposit bills, and receiving external confirmation information of the guaranteed power supply plan. Based on the design of this guaranteed power supply module, guaranteed power supply is implemented when a power sales company is suspended. After the electricity bill default processing module and the deposit bill default processing module have completed their processing, if the power sales company is suspended and the relevant transmission and distribution management and dispatching agencies confirm the feasibility of the guaranteed power supply plan, the guaranteed power supply module will be activated, and the users represented by the defaulting power sales company will be represented by the guaranteed power sales company. For example... Figure 14 The illustration shows a process for providing backup power supply after a power sales company suspends operations, as in an example.

[0113] Another embodiment provides a settlement system for electricity spot market customers, as shown in the system block diagram below. Figure 15 As shown, the billing error processing module is used to update electricity bills and / or security deposit bills for errors within a set error processing period based on received error processing applications. When electricity bills and security deposit bills are issued, if, within the preset error processing period, the electricity consumption used for settlement in the previous period is inconsistent with the user's actual electricity consumption due to metering or reading errors, the electricity sales company can submit an error processing application for the settlement bill. Error processing will be carried out according to the transaction information of the settlement cycle and the actual electricity consumption after approval. Error processing applications will not be accepted outside the error processing period. For example, in one instance, the error processing period is 3 months, so error processing will not be carried out 3 months after the settlement bill is issued. Figure 16 The diagram shows a flowchart for handling billing errors in one embodiment.

[0114] Those skilled in the art will understand that the systems described in the above embodiments can be implemented by software or instructions, or by controlling related hardware through instructions.

[0115] The above provides a detailed description of the settlement system for electricity spot market companies provided by the embodiments of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A settlement system for an electricity spot market facing a power selling company, characterized by, include: The module includes: settlement data acquisition module, electricity sales company clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module. The login information input module and the identity verification module are connected through an information exchange interface; The identity verification module is connected to the electricity sales company's clearing limit quantification module, electricity bill settlement module, electricity sales company credit assessment module, deposit bill settlement and clearing module, electricity bill default handling module, deposit bill default handling module, guaranteed power supply module, and bill error handling module through information interaction interfaces. The settlement data acquisition module is sequentially connected to the electricity sales company's clearing limit quantification module, electricity bill settlement module, and electricity sales company's credit assessment module through information interaction interfaces. The electricity bill settlement module is sequentially connected to the electricity sales company's clearing limit quantification module, the deposit bill settlement and clearing module, the electricity bill default processing module, and the bill error processing module through information interaction interfaces. The electricity sales company's clearing limit quantification module and the margin bill settlement and clearing module are connected through an information interaction interface; The margin bill settlement and clearing module is sequentially connected to the margin bill default processing module and the bill error processing module through information interaction interfaces. The electricity bill default processing module is connected to the guaranteed power supply module through an information interaction interface; The deposit bill default processing module is connected to the guaranteed power supply module through an information interaction interface; The login information input module provides an input interface for users to enter login information; The identity verification module pre-stores information on authorized electricity sales companies, and compares the login information with the pre-stored information on authorized electricity sales companies to determine whether the user is an authorized electricity sales company. The settlement data acquisition module is used to acquire initialization data, including initialization data of metered electricity data and declaration data; the settlement data acquisition module includes a first mode setting unit for setting the settlement mode. When set to the agent settlement mode, it receives metered electricity data from the marketing system of an external power grid company; when set to the independent settlement mode, it receives metered electricity data from an external settlement and clearing institution; the declaration data is acquired from the external spot market trading system and the external retail system. The electricity bill settlement module is used for electricity bill settlement and the issuance of electricity bills by the electricity sales company. This module includes a second mode setting unit for setting the settlement mode. When set to agency settlement mode, the difference in electricity charges between the wholesale and retail markets of the electricity sales company is used as the electricity bill settlement result. When set to independent settlement mode, the net electricity charges from the wholesale market of the electricity sales company are used as the electricity bill settlement result. The module outputs an initial electricity bill settlement statement based on initialization data obtained from the settlement data initialization module. The module also includes a statement verification and release unit for verifying the electricity bill settlement statement and generating release information for the electricity sales company, including the settlement period. The electricity sales company credit assessment module receives financial information, wholesale market transaction information, and retail market retail information of the electricity sales company sent by the settlement data acquisition module as initial data for the credit assessment model. The electricity sales company credit assessment module is used to obtain the initial credit value, annual credit value, periodic credit value, and total credit value of the electricity sales company that has passed the identity verification according to the preset credit assessment model, and is used to determine the credit risk level of the corresponding electricity sales company according to the preset mapping model and the initial credit value, annual credit value, periodic credit value, and total credit value. It is used to set the tangible net asset ratio coefficient of the corresponding electricity sales company according to the risk level of the information using preset rules; and it is used to obtain the unsecured credit limit value of the corresponding electricity sales company according to the preset credit limit model. The electricity sales company clearing limit quantification module receives wholesale market transaction information and retail market retail information sent by the settlement data acquisition module, and receives electricity bill settlement information sent by the electricity bill settlement module. The electricity sales company clearing limit quantification module is preset with an electricity sales company risk quantification model. The electricity sales company clearing limit quantification module uses the aforementioned wholesale market transaction information, retail market retail information, and electricity bill settlement information as the initial data of the electricity sales company risk quantification model. Based on the credit risk level of the corresponding electricity sales company, the module adopts the electricity sales company risk quantification model to obtain the risk quantification value of the corresponding electricity sales company, which is used as the clearing limit of the corresponding electricity sales company. The margin bill settlement and clearing module is used to obtain the unsecured credit limit of the power sales company and the margin amount payable by the power sales company based on the clearing limit output by the power sales company's clearing limit quantification module and the unsecured credit limit output by the power sales company's credit assessment module using a preset margin model; and is also used to calculate the margin shortfall of the power sales company based on the electricity bill settlement bill output by the electricity bill settlement module; the margin bill settlement and clearing module includes a margin settlement bill generation unit, which is used to generate and verify the margin settlement bill based on the margin amount payable by the power sales company, and publish it to the power sales company; the published information includes the margin bill settlement period; The electricity bill default processing module is used to generate electricity bill default information of the electricity sales company; the electricity bill default processing module also includes a publishing module, which is used to send the electricity bill default information of the electricity sales company to the electricity sales company and / or an external public platform according to preset rules; the electricity bill default processing module also includes a default level determination module, which is used to obtain the default level of the electricity sales company based on the overdue electricity bill and a preset threshold. The deposit bill default processing module is used to generate deposit bill default information of the power sales company according to preset rules and send it to the power sales company and / or external publicity platform when the power sales company fails to complete the deposit settlement within the deposit bill settlement period. The guaranteed power supply module is used to provide guaranteed power supply to a preset guaranteed power sales company under preset conditions and according to preset rules; the preset conditions include the power sales company's default on electricity bills and / or default on deposit bills resulting in suspension of trading, and receiving external input of guaranteed power supply plan confirmation information; The billing error processing module is used to update the electricity bill and / or security deposit bill for errors based on the received error processing application within the set error processing period. If a user's actual electricity consumption differs from the electricity consumption on the bill due to metering or reading errors, the bill error processing module will update the electricity bill according to the transaction information of the settlement cycle and the correct electricity consumption after approval.

2. The settlement system for electricity spot market to electricity sales companies according to claim 1, characterized in that, The corresponding electricity selling company electricity settlement result output by the electricity bill settlement module in the agent settlement clearing mode Specifically: N denotes the number of all power selling companies in the spot market, AG denotes the balance settlement power price, is the power selling company i in the settlement period T , and denotes the wholesale-retail balance portion power price, abbreviated as wholesale-retail balance profit, RM denotes the retail market, is the power selling company i in the settlement period T , and denotes the retail market power selling profit, WM denotes the wholesale market, is the power selling company i in the settlement period T , and denotes the wholesale market power purchasing cost.

3. The settlement system for electricity spot market for electricity sales companies according to claim 1, characterized in that, The corresponding electricity settlement result output by the electricity bill settlement module under the independent settlement and clearing mode Specifically: wherein, IN represents net settlement electricity fees, WM represents a wholesale market, is a wholesale market net portion electricity fee of the electricity selling company i in the settlement period T.

4. The settlement system for power spot market-oriented power selling companies according to Claim 1, wherein The credit limit model of the electricity sales company credit assessment module is specifically expressed as follows: in, For electricity sales companies i Unsecured credit line, For electricity sales companies i The amount of tangible net assets, For electricity sales companies i The ratio of tangible net assets.

5. The settlement system for an electricity spot market facing a power retailer according to Claim 1, wherein The amount of guarantee that the electricity sales company should pay is as follows: wherein Se represents the margin, is the margin amount to be paid by the power selling company i , Lim represents the credit limit, is the margin amount to be paid by the power selling company i , Uns represents the unsecured credit, is the unsecured credit amount for the power selling company i .

6. The settlement system for an electricity spot market facing a power retailer according to Claim 1, wherein The default level determination module of the electricity bill default processing module is used to determine whether the electricity sales company has paid the electricity bill after the overdue payment status ends. If not, the electricity sales company is determined to be in a first-level default status; and a prompt message is sent to the external settlement and clearing institution; when the external settlement and clearing institution receives the prompt message, it outputs an instruction to use the deposit paid by the electricity sales company to pay the electricity bill.

7. The settlement system for electricity spot market to electricity sales companies according to claim 1, characterized in that, The default level determination module of the electricity bill default processing module determines that the corresponding electricity sales company is in a level two default state when it receives the electricity bill shortfall information from the external clearing and settlement institution; wherein, the electricity bill shortfall information is issued when the electricity bill still has a shortfall after the electricity sales company has paid the deposit to pay the electricity bill.

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