A power market bidding system considering the heterogeneous cost characteristics of units

Abstract

The present invention discloses a separate-site bidding system for the electricity market that takes into account the heterogeneous cost characteristics of generating units. The system comprises a consumer declaration module, a power retailer management module, a power generator declaration module, a market operator management module, a system operator management module, a power generation data metering and settlement module, and a power consumption data metering and settlement module. The present invention utilizes a separate-site bidding method to provide more refined price signals for the electricity market, fully reflecting the differentiated value provided by controllable and uncontrollable generating units to the operation of the power system, resolving the "external cost" issue of uncontrollable generating units, restoring market price signals that truly reflect the value of electricity, and enhancing the market's role in optimizing the allocation of power resources.

Description

Technical Field

[0001] The present invention relates to the technical field of power market transactions, and in particular to a power market segmented bidding system that takes into account the heterogeneous cost characteristics of units. Background Art

[0002] During the transition to a new power system, the penetration rate of renewable energy continues to increase. In wholesale markets, centralized bidding models have already led to issues such as "zero" and "negative" electricity prices during periods of peak renewable energy production. In this model, market participants quote short-term marginal prices, and different types of units are uniformly cleared based on their bids. This model assumes that market participants have different short-term marginal costs, but this assumption will no longer hold true in future power systems with a high proportion of renewable energy, as renewable energy sources have low or zero marginal costs.

[0003] As electricity markets evolve, the rapid growth of intermittent wind and solar power generation, with zero marginal operating costs, has posed challenges to wholesale markets. Electricity energy markets, based on optimal pricing and investment models, must adapt to the supply fluctuations and energy market price impacts associated with large-scale intermittent generation. These developments raise deeper questions: Can current market designs provide effective long-term price signals to support investment in generation capacity and storage portfolios that align with social welfare and environmental objectives? In this scenario, a single electricity energy market cannot recoup the investment costs of renewable energy generation and may not provide effective signals to generators, operators, or consumers. Furthermore, low- or zero-marginal-cost generation requires support outside the wholesale market, generating "external costs." These "external costs" distort market price signals and lead to a lack of market signals for optimizing the energy mix. The number and type of renewable energy generation are determined by the nature of the support policies, while conventional generation is used to balance system supply and demand. In this scenario, the market's role in providing investment returns, optimizing resource allocation, and providing signals to consumers is gradually weakening. If not effectively addressed, the market will become further distorted. The "separate market bidding" approach adaptively adopts heterogeneous bidding formats for power resources with different cost characteristics, trading them across different markets to reflect the true costs of different power resources. Based on the spatiotemporal regulation characteristics of energy products, energy products are divided into two categories: controllable and uncontrollable. These products are then bid and cleared in separate markets, restoring the commodity value of energy and providing a true and effective price signal for power generators and consumers. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the existing technology and propose a power market segmented bidding system that takes into account the heterogeneous cost characteristics of units. According to the spatiotemporal regulation characteristics of electric energy products, electric energy products are divided into controllable and uncontrollable categories, and bidding and clearing are carried out in independent markets respectively, thereby restoring the commodity value of electric energy and providing real and effective price signals for power generators and power consumers.

[0005] To achieve the above objectives, the present invention provides a technical solution: a power market bidding system that considers the heterogeneous cost characteristics of power units, comprising:

[0006] The consumer declaration module is used for consumers to register their personal information and send demand data for controllable and uncontrollable electric energy products to the electricity retailer management module;

[0007] The electricity seller management module is used to collect the demand data of controllable electric energy products and uncontrollable electric energy products sent by the consumer declaration module, calculate the total demand of the two types of electric energy products by the consumer declaration module, and send the total demand of the two types of electric energy products to the market operator management module respectively;

[0008] The power producer declaration module is used to send the power generation cost and power generation capacity of controllable and uncontrollable units to the market operator management module;

[0009] The market operator management module is used to collect the power generation costs and capacities of controllable and uncontrollable units sent by the generator declaration module, as well as the demand for controllable and uncontrollable electric energy products sent by the electricity retailer management module, conduct bidding and clearing in the controllable and uncontrollable electric energy product markets, and send the results of the bidding and clearing of the sub-markets, including the winning bid quantities and clearing prices of controllable and uncontrollable electric energy products, to the generator declaration module and the electricity retailer management module;

[0010] The system operator management module is used to send controllable and uncontrollable unit operation instructions to the power supplier declaration module, and send power consumption operation curves to the electricity sales management module;

[0011] The power generation data metering and settlement module is used to send actual power generation metering data to the market operator management module and the system operator management module, and receive settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market sent by the market operator management module;

[0012] The electricity consumption data metering and settlement module is used to send actual electricity consumption metering data to the electricity sales management module and receive settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market sent by the market operator management module.

[0013] Furthermore, the consumer declaration module is specifically used for the following:

[0014] The consumer entity registers personal information on the system and logs in;

[0015] Consumers choose controllable and uncontrollable electric energy products with differentiated power supply stability and differentiated rates provided by electric retailers based on their own electricity consumption flexibility and price risk preferences, and declare their demand for controllable and uncontrollable electric energy products to electric retailers.

[0016] Furthermore, the electricity supplier management module is specifically used for the following:

[0017] The electricity sellers collect consumer demand declarations for controllable and uncontrollable electric energy products, calculate the total demand for controllable and uncontrollable electric energy products, and submit separate declarations of the total demand for the two types of electric energy products to the system operator;

[0018] Calculate the total consumer demand for controllable and uncontrollable electrical energy products;

[0019] The total demand for controllable electric energy products and uncontrollable electric energy products are submitted to the market operator management module and the system operator management module respectively.

[0020] Furthermore, the power generator declaration module is specifically used for the following:

[0021] Power generators classify units into two categories: controllable units and uncontrollable units based on their technical characteristics;

[0022] Power generators submit quotation for controllable electric energy products and power generation capacity based on the operating costs of controllable units providing flexible and controllable power generation;

[0023] Power generators provide quotations and power generation capacities for uncontrollable electric energy products based on the uncontrollable low-carbon power generation costs provided by uncontrollable units.

[0024] Furthermore, the market operator management module is specifically used for the following:

[0025] The market operator collects quotations for controllable and uncontrollable electric energy products and declarations of generation capacity submitted by power generators;

[0026] The market operator collects declarations of total demand for controllable and uncontrollable electric energy products submitted by electric retailers;

[0027] Market operators conduct separate bidding and clearing for controllable and uncontrollable electric energy products;

[0028] The market operator releases the results of the sub-venue bidding clearance to the electricity retailers, including the number of winning controllable electric energy products, the marginal price of controllable electric energy products, the number of winning uncontrollable electric energy products and the marginal price of uncontrollable electric energy products.

[0029] Furthermore, the market operator conducts separate bidding and clearing for controllable electric energy products and uncontrollable electric energy products, as follows:

[0030] The price in the market for uncontrollable electrical energy products is determined by the market operator using a reference price based on the long-term marginal costs of uncontrollable units supplemented by an auction price;

[0031] As a supplement to the uncontrollable electric energy product market, the controllable electric energy product market adopts an economic dispatch model based on short-term marginal costs for clearing.

[0032] Furthermore, the system operator management module is specifically used for the following:

[0033] The system operator issues operating instructions for controllable and uncontrollable units to the generator;

[0034] The system operator publishes the electricity consumption curve to electricity retailers.

[0035] Furthermore, the power generation data metering and settlement module is specifically used for the following:

[0036] The market operator sends the winning bids and clearing prices for the controllable and uncontrollable energy product markets to power generators, who then make operational arrangements for their controllable and uncontrollable units based on the winning bids.

[0037] Install intelligent sensor devices at the power company's unit access nodes to measure the actual power generation of controllable and uncontrollable units respectively;

[0038] Power generators send metered actual power generation data to market operators and system operators;

[0039] The market operator sends the controllable electric energy market settlement bill and the uncontrollable electric energy market settlement bill to the power generator.

[0040] Furthermore, the electricity consumption data metering and settlement module is specifically used for the following:

[0041] The market operator sends the winning bid quantity and clearing price of the controllable and uncontrollable electric energy product markets to the electricity sellers, who then make operational arrangements for consumers' controllable and uncontrollable electric energy demands based on the winning bid quantity.

[0042] Install smart sensor devices at consumer nodes to measure the actual usage of controllable and uncontrollable electric energy products respectively;

[0043] Consumers send metering data on actual usage of controllable electric energy products and actual usage of uncontrollable electric energy products to the electricity seller;

[0044] The electricity seller sends the total metering data of the actual usage of the consumer's controllable electric energy products and the actual usage of the consumer's uncontrollable electric energy products to the market operator and the system operator;

[0045] The market operator sends settlement bills for the controllable and uncontrollable electric energy markets to the electricity sellers;

[0046] The electricity retailer sends settlement bills for the controllable electricity energy market and the uncontrollable electricity energy market to consumers.

[0047] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0048] 1. Use the segmented bidding method to provide more refined price signals for the electricity market, fully reflect the differentiated value provided by controllable and uncontrollable units to the operation of the power system, solve the "external cost" problem of uncontrollable units, restore the market price signal that truly reflects the value of electricity, and enhance the role of the market in optimizing the allocation of power resources.

[0049] 2. For power generators, prices are quoted and cleared separately for controllable units and uncontrollable units, and the unit operation and investment costs are recovered through the controllable electric energy product market and the uncontrollable electric energy product market. At the same time, the price signals of the controllable electric energy product market and the uncontrollable electric energy product market guide power generators' investment plans for controllable units and uncontrollable units.

[0050] 3. For consumers, they can choose controllable electric energy products and uncontrollable electric energy products according to their electricity usage preferences to reduce electricity rates. At the same time, the price signals of the controllable electric energy product market and the uncontrollable electric energy product market will guide consumers to optimize their energy usage habits and increase the absorption ratio of uncontrollable power sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 It is a framework diagram of the system of the present invention.

[0052] Figure 2 It is a schematic diagram of the system of the present invention. DETAILED DESCRIPTION

[0053] The present invention will be described in further detail below with reference to the embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0054] like Figure 1 and Figure 2As shown, this embodiment discloses a power market segmented bidding system that takes into account the heterogeneous cost characteristics of power units, including: a consumer declaration module 1, a power retailer management module 2, a power generator declaration module 3, a market operator management module 4, a system operator management module 5, a power generation data metering and settlement module 6, and a power consumption data metering and settlement module 7;

[0055] The consumer declaration module 1 is used for consumers to register their personal information and send demand data of controllable electric energy products and uncontrollable electric energy products to the electricity sales management module;

[0056] The electricity seller management module 2 is used to collect the demand data of controllable electric energy products and uncontrollable electric energy products sent by the consumer declaration module, calculate the total demand of the two types of electric energy products of the consumer declaration module for controllable electric energy products and uncontrollable electric energy products, and send the total demand of the two types of electric energy products to the market operator management module respectively;

[0057] The power producer declaration module 3 is used to send the power generation cost and power generation capacity of the controllable units and uncontrollable units to the market operator management module;

[0058] The market operator management module 4 is used to collect the power generation costs and power generation capacities of controllable units and uncontrollable units sent by the power generator declaration module, as well as the demand for controllable electric energy products and uncontrollable electric energy products sent by the electricity retailer management module, conduct bidding and clearing in the controllable electric energy product market and the uncontrollable electric energy product market respectively, and send the results of the bidding and clearing of the sub-markets, including the winning bid quantities and clearing prices of the controllable electric energy products and uncontrollable electric energy products, to the power generator declaration module and the electricity retailer management module;

[0059] The system operator management module 5 is used to send controllable unit and uncontrollable unit operation instructions to the power supplier declaration module, and send power consumption operation curves to the electricity sales management module;

[0060] The power generation data metering and settlement module 6 is used to send actual power generation metering data to the market operator management module and the system operator management module, and receive settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market sent by the market operator management module;

[0061] The electricity consumption data metering and settlement module 7 is used to send actual electricity consumption metering data to the electricity seller management module, and receive settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market sent by the market operator management module.

[0062] In one embodiment, the consumer declaration module 1 is specifically used as follows:

[0063] The consumer entity registers personal information on the system and logs in;

[0064] Consumers choose controllable and uncontrollable electric energy products with differentiated power supply stability and differentiated rates provided by electric retailers based on their own electricity consumption flexibility and price risk preferences, and declare their demand for controllable and uncontrollable electric energy products to electric retailers.

[0065] In one embodiment, the electricity vendor management module 2 is specifically used for the following:

[0066] The electricity sellers collect consumer demand declarations for controllable and uncontrollable electric energy products, calculate the total demand for controllable and uncontrollable electric energy products, and submit separate declarations of the total demand for the two types of electric energy products to the system operator;

[0067] Calculate the total consumer demand for controllable and uncontrollable electrical energy products;

[0068] The total demand for controllable electric energy products and uncontrollable electric energy products are submitted to the market operator management module and the system operator management module respectively.

[0069] In one embodiment, the power generator declaration module 3 is specifically used for the following:

[0070] Power generators classify units into two categories: controllable units and uncontrollable units based on their technical characteristics;

[0071] Power generators submit quotation for controllable electric energy products and power generation capacity based on the operating costs of controllable units providing flexible and controllable power generation;

[0072] Power generators provide quotations and power generation capacities for uncontrollable electric energy products based on the uncontrollable low-carbon power generation costs provided by uncontrollable units.

[0073] In one embodiment, the market operator management module 4 is specifically used for the following:

[0074] The market operator collects quotations for controllable and uncontrollable electric energy products and declarations of generation capacity submitted by power generators;

[0075] The market operator collects declarations of total demand for controllable and uncontrollable electric energy products submitted by electric retailers;

[0076] Market operators conduct separate bidding and clearing for controllable and uncontrollable electric energy products;

[0077] The market operator releases the results of the sub-venue bidding clearance to the electricity retailers, including the number of controllable electric energy products that won the bid, the marginal price of controllable electric energy products, the number of uncontrollable electric energy products that won the bid, and the marginal price of uncontrollable electric energy products.

[0078] In one embodiment, the market operator conducts separate bidding and clearing for controllable electric energy products and uncontrollable electric energy products, as follows:

[0079] The price of the uncontrollable electric energy product market is determined by the market operator using a reference price based on the long-run marginal cost (LRMC) of uncontrollable units plus an auction price;

[0080] As a supplement to the uncontrollable electric energy product market, the controllable electric energy product market adopts an economic dispatch model based on short-run marginal cost (SRMC) for clearing.

[0081] In one embodiment, the system operator management module 5 is specifically used for the following:

[0082] The system operator issues operating instructions for controllable and uncontrollable units to the generator;

[0083] The system operator publishes the electricity consumption curve to electricity retailers.

[0084] In one embodiment, the power generation data metering and settlement module 6 is specifically used for the following:

[0085] The market operator sends the winning bids and clearing prices for the controllable and uncontrollable energy product markets to power generators, who then make operational arrangements for their controllable and uncontrollable units based on the winning bids.

[0086] Install intelligent sensor devices at the power company's unit access nodes to measure the actual power generation of controllable and uncontrollable units respectively;

[0087] Power generators send metered actual power generation data to market operators and system operators;

[0088] The market operator sends the market settlement bills for controllable electric energy products and the market settlement bills for uncontrollable electric energy products to the power generator.

[0089] In one embodiment, the electricity consumption data metering and settlement module 7 is specifically used for the following:

[0090] The market operator sends the winning bid quantity and clearing price of the controllable and uncontrollable electric energy product markets to the electricity sellers, who then make operational arrangements for consumers' controllable and uncontrollable electric energy demands based on the winning bid quantity.

[0091] Install smart sensor devices at consumer nodes to measure the actual usage of controllable and uncontrollable electric energy products respectively;

[0092] Consumers send metering data on actual usage of controllable electric energy products and actual usage of uncontrollable electric energy products to the electricity seller;

[0093] The electricity seller sends the total metering data of the actual usage of the consumer's controllable electric energy products and the actual usage of the consumer's uncontrollable electric energy products to the market operator and the system operator;

[0094] The market operator sends settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market to the electricity seller;

[0095] The electricity seller sends settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market to consumers.

[0096] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A power market bidding system considering the heterogeneous cost characteristics of power units, characterized by: include: The consumer declaration module is used for consumers to register their personal information and send demand data for controllable and uncontrollable electric energy products to the electricity retailer management module; The electricity seller management module is used to collect the demand data of controllable electric energy products and uncontrollable electric energy products sent by the consumer declaration module, calculate the total demand of the two types of electric energy products by the consumer declaration module, and send the total demand of the two types of electric energy products to the market operator management module respectively; The power producer declaration module is used to send the power generation cost and power generation capacity of controllable and uncontrollable units to the market operator management module; The market operator management module is used to collect the power generation costs and capacities of controllable and uncontrollable units sent by the generator declaration module, as well as the demand for controllable and uncontrollable electric energy products sent by the electricity retailer management module, conduct bidding and clearing in the controllable and uncontrollable electric energy product markets, and send the results of the bidding and clearing of the sub-markets, including the winning bid quantities and clearing prices of controllable and uncontrollable electric energy products, to the generator declaration module and the electricity retailer management module; The system operator management module is used to send controllable and uncontrollable unit operation instructions to the power supplier declaration module, and send power consumption operation curves to the electricity sales management module; The power generation data metering and settlement module is used to send actual power generation metering data to the market operator management module and the system operator management module, and receive settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market sent by the market operator management module; The electricity consumption data metering and settlement module is used to send actual electricity consumption metering data to the electricity sales management module and receive settlement bills for the controllable electric energy product market and the uncontrollable electric energy product market sent by the market operator management module.

2. The power market segmented bidding system considering the heterogeneous cost characteristics of power units according to claim 1 is characterized in that: The consumer declaration module is specifically used as follows: The consumer entity registers personal information on the system and logs in; Consumers choose controllable and uncontrollable electric energy products with differentiated power supply stability and differentiated rates provided by electric retailers based on their own electricity consumption flexibility and price risk preferences, and declare their demand for controllable and uncontrollable electric energy products to electric retailers.

3. The power market segmented bidding system considering the heterogeneous cost characteristics of units according to claim 1 is characterized in that: The electricity supplier management module is specifically used for the following: The electricity sellers collect consumer demand declarations for controllable and uncontrollable electric energy products, calculate the total demand for controllable and uncontrollable electric energy products, and submit separate declarations of the total demand for the two types of electric energy products to the system operator; Calculate the total consumer demand for controllable and uncontrollable electrical energy products; The total demand for controllable electric energy products and uncontrollable electric energy products are submitted to the market operator management module and the system operator management module respectively.

4. The power market segmented bidding system considering the heterogeneous cost characteristics of units according to claim 1 is characterized in that: The power generator declaration module is specifically used for the following: Power generators classify units into two categories: controllable units and uncontrollable units based on their technical characteristics; Power generators submit quotation for controllable electric energy products and power generation capacity based on the operating costs of controllable units providing flexible and controllable power generation; Power generators provide quotations and power generation capacities for uncontrollable electric energy products based on the uncontrollable low-carbon power generation costs provided by uncontrollable units.

5. The power market segmented bidding system considering the heterogeneous cost characteristics of units according to claim 1 is characterized in that: The market operator management module is specifically used for the following: The market operator collects quotations for controllable and uncontrollable electric energy products and declarations of generation capacity submitted by power generators; The market operator collects declarations of total demand for controllable and uncontrollable electric energy products submitted by electric retailers; Market operators conduct separate bidding and clearing for controllable and uncontrollable electric energy products; The market operator releases the results of the sub-venue bidding clearance to the electricity retailers, including the number of winning controllable electric energy products, the marginal price of controllable electric energy products, the number of winning uncontrollable electric energy products and the marginal price of uncontrollable electric energy products.

6. The power market segmented bidding system considering the heterogeneous cost characteristics of units according to claim 5 is characterized in that: The market operator conducts separate bidding and clearing for controllable electric energy products and uncontrollable electric energy products, as follows: The price in the market for uncontrollable electrical energy products is determined by the market operator using a reference price based on the long-term marginal costs of uncontrollable units supplemented by an auction price; As a supplement to the uncontrollable electric energy product market, the controllable electric energy product market adopts an economic dispatch model based on short-term marginal costs for clearing.

7. The power market segmented bidding system considering the heterogeneous cost characteristics of units according to claim 1 is characterized in that: The system operator management module is specifically used for the following: The system operator issues operating instructions for controllable and uncontrollable units to the generator; The system operator publishes the electricity consumption curve to electricity retailers.

8. The power market segmented bidding system considering the heterogeneous cost characteristics of power units according to claim 1 is characterized in that: The power generation data metering and settlement module is specifically used for the following: The market operator sends the winning bids and clearing prices for the controllable and uncontrollable energy product markets to power generators, who then make operational arrangements for their controllable and uncontrollable units based on the winning bids. Install intelligent sensor devices at the power company's unit access nodes to measure the actual power generation of controllable and uncontrollable units respectively; Power generators send metered actual power generation data to market operators and system operators; The market operator sends the controllable electric energy market settlement bill and the uncontrollable electric energy market settlement bill to the power generator.

9. The power market segmented bidding system considering the heterogeneous cost characteristics of units according to claim 1 is characterized in that: The electricity consumption data metering and settlement module is specifically used for the following: The market operator sends the winning bid quantity and clearing price of the controllable and uncontrollable electric energy product markets to the electricity sellers, who then make operational arrangements for consumers' controllable and uncontrollable electric energy demands based on the winning bid quantity. Install smart sensor devices at consumer nodes to measure the actual usage of controllable and uncontrollable electric energy products respectively; Consumers send metering data on actual usage of controllable electric energy products and actual usage of uncontrollable electric energy products to the electricity seller; The electricity seller sends the total metering data of the actual usage of the consumer's controllable electric energy products and the actual usage of the consumer's uncontrollable electric energy products to the market operator and the system operator; The market operator sends settlement bills for the controllable and uncontrollable electric energy markets to the electricity sellers; The electricity retailer sends settlement bills for the controllable electricity energy market and the uncontrollable electricity energy market to consumers.

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