Electric power market split-field bidding system considering unit heterogeneous cost characteristics

Abstract

The invention discloses an electricity market split bidding system considering unit heterogeneous cost characteristics. The electricity market split bidding system comprises a consumer declaration module, an electricity seller 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 an electricity utilization data metering and settlement module. According to the method, finer price signals are provided for the electric energy market by using a split-field bidding method, the differentiation value provided by the controllable unit and the uncontrollable unit for the operation of the electric power system is fully reflected, the problem of external cost of the uncontrollable unit is solved, the market price signals really reflecting the electric energy value are restored, and the market price quality is improved. And the effect of the market on power resource optimization and configuration optimization is improved.

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 taking into account the heterogeneous cost characteristics of units. Background Art

[0002] In the process of transformation of the new power system, the penetration rate of renewable energy continues to increase. In the wholesale market, the centralized bidding model has already seen problems such as "zero electricity price" and "negative electricity price" during the peak period of renewable energy in actual operation. In the centralized bidding model, market players quote short-term marginal prices, and different types of units are uniformly cleared according to the price. The centralized bidding model is based on the assumption that market players have different short-term marginal costs, but this assumption will no longer apply in the future new power system with a high proportion of renewable energy, because new energy has the characteristics of low marginal cost or zero marginal cost.

[0003] In the process of electricity market development, the rapid development of intermittent wind and solar power generation with zero marginal operating costs has brought challenges to the wholesale market. The electricity energy market based on the optimal pricing and investment model must adapt to the supply changes and energy market price impacts associated with large-scale intermittent generation. These developments raise a deeper question: whether the current market design can provide effective long-term price signals to support investment in power generation capacity and energy storage combinations that meet social welfare and environmental goals. In this case, the single electricity energy market cannot recover the investment costs of renewable energy units, and may not provide effective signals to generators, operators or consumers. In addition, low marginal cost or zero marginal cost units require support outside the wholesale market, which will generate "external costs". "External costs" will distort market price signals and lead to a lack of market signals to optimize the energy structure-the number and type of renewable energy units are determined by the nature of the support policy, and traditional units are used to balance system supply and demand. In this case, the role of the market in terms of investment returns, improving resource optimization allocation, and releasing signals to consumers is gradually weakened. If it is not effectively resolved, the market will be further distorted. The "separate bidding" method adaptively adopts heterogeneous quotation formats for power resources with different cost characteristics, and trades in different markets to reflect the real costs of different power resources. According to the spatiotemporal regulation characteristics of electric energy products, electric energy products are divided into controllable and uncontrollable categories, and bid and clear them in independent markets respectively, restoring the value of electric energy commodities and providing real and effective price signals for power generators and power consumers. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art 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-mentioned purpose, the technical solution provided by the present invention is: a power market segmented bidding system considering the heterogeneous cost characteristics of units, comprising:

[0006] The consumer declaration module 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;

[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, controllable electric energy products and uncontrollable 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 generator declaration module is used to send the power generation cost and power generation capacity of controllable units and uncontrollable units to the market operator management module;

[0009] The market operator management module is used to collect the power generation costs and power generation capacities of the controllable units and uncontrollable units sent by the power generator declaration module, and the demand for controllable electric energy products and uncontrollable electric energy products sent by the electric sales 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-venues to the power generator declaration module and the electric sales management module, including the winning bids and clearing prices of the controllable electric energy products and uncontrollable electric energy products;

[0010] The system operator management module is used to send the controllable and uncontrollable unit operation instructions to the power supplier declaration module, and send the power consumption operation curve to the power 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 subject 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 sellers based on their own electricity consumption flexibility and price risk preferences, and report their demand for controllable and uncontrollable electric energy products to electric sellers.

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

[0017] The electricity seller collects the consumer's demand declarations for controllable and uncontrollable electric energy products, calculates the total demand of consumers for controllable and uncontrollable electric energy products, and submits the total demand declarations for the two types of electric energy products to the system operator respectively;

[0018] Calculate the total demand of consumers for controllable electric energy products and uncontrollable electric 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 divide units into two categories: controllable units and uncontrollable units according to their technical characteristics;

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

[0023] Power generators provide uncontrollable electric energy product quotations and power generation capacity 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 the quotations of controllable and uncontrollable electric energy products and declarations of power generation capacity submitted by power generators;

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

[0027] Market operators conduct bidding and clearing of controllable and uncontrollable electric energy products in different markets;

[0028] The market operator releases the results of the bidding and clearing of each venue to the electricity sellers, 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 the 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 of the controllable electric energy product market and the uncontrollable electric energy product market to the power generators, and the power generators make operation arrangements for the controllable and uncontrollable units based on the winning bids.

[0037] Install intelligent sensor devices at the grid-connection nodes of power generators to measure the actual power generation of controllable and uncontrollable units respectively;

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

[0039] The market operator sends controllable electric energy market settlement bills and uncontrollable electric energy market settlement bills to power generators.

[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 electric energy product market and the uncontrollable electric energy product market to the electricity sellers, and the electricity sellers make operation arrangements for the controllable electric energy demand and the uncontrollable electric energy demand of consumers according to the winning bid quantity;

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

[0043] Consumers send metering data of actual usage of controllable electric energy products and actual usage of uncontrollable electric energy products to the electric 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 uncontrollable electric energy products to the market operator and the system operator;

[0045] The market operator sends settlement bills for the controllable electric energy market and the uncontrollable electric energy market 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 field 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 consumption 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 is further described in detail below in conjunction with 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 sub-field bidding system considering the heterogeneous cost characteristics of units, including: a consumer declaration module 1, a power seller 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 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 sales 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, 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 the 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 the controllable units and uncontrollable units sent by the power generation company declaration module, and the demand for controllable electric energy products and uncontrollable electric energy products sent by the electric sales company management module, and 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-fields to the power generation company declaration module and the electric sales company management module, including the winning bid quantity and clearing price of the controllable electric energy products and uncontrollable electric energy products;

[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 power 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 of 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 subject 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 sellers based on their own electricity consumption flexibility and price risk preferences, and report their demand for controllable and uncontrollable electric energy products to electric sellers.

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

[0066] The electricity seller collects the consumer's demand declarations for controllable and uncontrollable electric energy products, calculates the total demand of consumers for controllable and uncontrollable electric energy products, and submits the total demand declarations for the two types of electric energy products to the system operator respectively;

[0067] Calculate the total demand of consumers for controllable electric energy products and uncontrollable electric 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 as follows:

[0070] Power generators divide units into two categories: controllable units and uncontrollable units according to their technical characteristics;

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

[0072] Power generators provide uncontrollable electric energy product quotations and power generation capacity 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 the quotations of controllable and uncontrollable electric energy products and declarations of power generation capacity submitted by power generators;

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

[0076] Market operators conduct bidding and clearing of controllable and uncontrollable electric energy products in different markets;

[0077] The market operator releases the results of the bidding and clearing of each venue to the electricity sellers, 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.

[0078] In one embodiment, the market operator conducts bidding and clearing of controllable electric energy products and uncontrollable electric energy products in different markets, 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 the electricity retailers.

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

[0085] The market operator sends the winning bids and clearing prices of the controllable electric energy product market and the uncontrollable electric energy product market to the power generators, and the power generators make operation arrangements for the controllable and uncontrollable units based on the winning bids.

[0086] Install intelligent sensor devices at the grid-connection nodes of power generators to measure the actual power generation of controllable and uncontrollable units respectively;

[0087] 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 generators.

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

[0090] The market operator sends the winning bid quantity and clearing price of the controllable electric energy product market and the uncontrollable electric energy product market to the electricity sellers, and the electricity sellers make operation arrangements for the controllable electric energy demand and the uncontrollable electric energy demand of consumers according to the winning bid quantity;

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

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

[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 equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A power market bidding system considering the heterogeneous cost characteristics of units, characterized by: include: The consumer declaration module 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; 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, controllable electric energy products and uncontrollable 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 generator declaration module is used to send the power generation cost and power generation capacity of controllable units and uncontrollable units to the market operator management module; The market operator management module is used to collect the power generation costs and power generation capacities of the controllable units and uncontrollable units sent by the power generator declaration module, and the demand for controllable electric energy products and uncontrollable electric energy products sent by the electric sales 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-venues to the power generator declaration module and the electric sales management module, including the winning bids and clearing prices of the controllable electric energy products and uncontrollable electric energy products; The system operator management module is used to send the controllable and uncontrollable unit operation instructions to the power supplier declaration module, and send the power consumption operation curve to the power 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. According to claim 1, a power market segment bidding system considering the heterogeneous cost characteristics of units is characterized by: The consumer declaration module is specifically used as follows: The consumer subject 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 sellers based on their own electricity consumption flexibility and price risk preferences, and report their demand for controllable and uncontrollable electric energy products to electric sellers.

3. The power market segment 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 seller collects the consumer's demand declarations for controllable and uncontrollable electric energy products, calculates the total demand of consumers for controllable and uncontrollable electric energy products, and submits the total demand declarations for the two types of electric energy products to the system operator respectively; Calculate the total demand of consumers for controllable electric energy products and uncontrollable electric 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 segment 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 as follows: Power generators divide units into two categories: controllable units and uncontrollable units according to their technical characteristics; The power generators shall submit quotation for controllable electric energy products and power generation capacity based on the operating costs of the controllable units providing flexible and controllable power generation; Power generators provide uncontrollable electric energy product quotations and power generation capacity based on the uncontrollable low-carbon power generation costs provided by uncontrollable units.

5. The power market segment 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 the quotations of controllable and uncontrollable electric energy products and declarations of power generation capacity submitted by power generators; The market operator collects the total demand declarations of controllable and uncontrollable electric energy products submitted by the sellers; Market operators conduct bidding and clearing of controllable and uncontrollable electric energy products in separate venues; The market operator releases the results of the bidding and clearing of each venue to the electricity sellers, 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 segment bidding system considering the heterogeneous cost characteristics of units according to claim 5 is characterized in that: The market operator conducts bidding and clearing of controllable electric energy products and uncontrollable electric energy products in different venues, 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 segment 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 the electricity retailers.

8. The power market segment bidding system considering the heterogeneous cost characteristics of units according to claim 1 is characterized in that: The power generation data metering and settlement module is specifically used as follows: The market operator sends the winning bids and clearing prices of the controllable electric energy product market and the uncontrollable electric energy product market to the power generators, and the power generators make operation arrangements for the controllable and uncontrollable units based on the winning bids. Install intelligent sensor devices at the grid-connection nodes of power generators to measure the actual power generation of controllable and uncontrollable units respectively; Generators send metered actual power generation data to market operators and system operators; The market operator sends controllable electric energy market settlement bills and uncontrollable electric energy market settlement bills to power generators.

9. The power market segment 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 electric energy product market and the uncontrollable electric energy product market to the electricity sellers, and the electricity sellers make operation arrangements for the controllable electric energy demand and the uncontrollable electric energy demand of consumers according to the winning bid quantity; Install intelligent sensor devices at consumer nodes to measure the actual usage of controllable electric energy products and the actual usage of uncontrollable electric energy products respectively; Consumers send metering data of actual usage of controllable electric energy products and actual usage of uncontrollable electric energy products to the electric 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 uncontrollable electric energy products to the market operator and the system operator; The market operator sends settlement bills for the controllable electric energy market and the uncontrollable electric energy market 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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