CN112419063A - Flexible matching bundling and outward-conveying transaction system for clean energy and conventional energy - Google Patents
Flexible matching bundling and outward-conveying transaction system for clean energy and conventional energy Download PDFInfo
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Abstract
The invention relates to a flexible matching bundling and outward-conveying transaction system for clean energy and conventional energy, which comprises: the intra-provincial bundling trading module is used for bundling and trading the clean energy and the conventional energy according to the configuration proportion of the bundling proportion configuration module according to the clean energy power generation condition of the province, the power generation plan of the conventional energy power generation enterprise and the trading mode; the inter-provincial bundling trading module is used for bundling and trading the conventional energy and the clean energy according to the configuration proportion of the bundling proportion configuration module according to the transmission capacity of the inter-provincial connecting line, the power generation characteristics of the provincial clean energy, the power generation plan of the provincial conventional energy power generation enterprises and the trading mode; a bundling proportion configuration module for configuring the bundling proportion; and the trading clearing module is used for clearing various power supply declaration trading electric quantities according to the sequence of the photovoltaic components, the wind power components, the hydroelectric components and the thermal power components and the sequence of the electricity selling prices from low to high. The system can effectively improve the reliability and stability of electric energy delivery.
Description
Technical Field
The invention relates to the field of electric power system transaction platforms, in particular to a flexible matching bundling and outward-conveying transaction system for clean energy and conventional energy.
Background
The northwest power grid is an important national power delivery terminal, 10 direct current delivery channels are built up together as 9 months in 2020, the total capacity is 6271 ten thousand kilowatts, wherein 6 extra-high voltage direct currents (Tianzhong, lingsha, Qishao, Jiquan, Zhayi and Qingyu) have the capacity of 5400 ten thousand kilowatts, which account for 56 percent of the total extra-high voltage direct current capacity of a company system, are the alternating current synchronous power grids with the largest number of direct current delivery channels and the largest transmission capacity in China, and undertake the task of ensuring the stable delivery of new energy bases.
By 9 months in 2020, 10155 ten thousand kilowatts are installed in the new energy of the northwest power grid, the maximum load is 9309 ten thousand kilowatts, the installed load ratio reaches 108.1%, the proportion of the installed new energy in the total installed capacity reaches 35.9%, the proportion is 15% higher than the national level, the proportion of the generated energy in the new energy in the total generated energy reaches 19.3%, the proportion is 8% higher than the national level, and the new energy has the characteristics of high installed capacity, high permeability and high proportion. The new energy power generation is influenced by factors such as weather, climate and temperature, and has strong randomness, intermittence and volatility.
The invention discloses a cross-provincial delivery channel, which realizes energy resource optimal configuration, needs a stable power supply and a stable power curve support, continuously increases the cross-provincial power transmission proportion of new energy along with the continuous increase of the new energy occupation ratio, and continuously highlights the contradiction between the inherent instability of new energy output and the cross-regional direct current stable delivery.
Disclosure of Invention
The invention aims to provide a flexible matching bundling and outward-conveying trading system for clean energy and conventional energy, and aims to solve the problems of randomness, intermittence and fluctuation when new energy is accessed in a large scale, high proportion and high permeability.
The invention provides a complete trading mode, and mode innovation is developed in all aspects of electric power trading such as a trading basic principle, market member responsibility, a bundling trading mode, bundling proportion configuration, a bundling organization mode, an electric quantity settlement mode and the like, and the fluctuation of new energy can be effectively stabilized through bundling trading, the delivery scale of clean energy is enlarged, and the electric energy trading efficiency is effectively improved.
In order to achieve the purpose, the invention provides the following scheme:
a clean energy and conventional energy flexible matching bundling and delivery transaction system, the system comprising: the system comprises an intra-provincial bundling transaction module, an inter-provincial bundling transaction module, a bundling proportion configuration module and a transaction clearing module;
the intra-provincial bundling transaction module is used for bundling the clean energy and the conventional energy according to the configuration proportion of the bundling proportion configuration module according to the clean energy power generation condition of the province, the conventional energy power generation enterprise power generation plan and the transaction mode, and performing cross-regional transaction;
the inter-provincial bundling transaction module is used for bundling the conventional energy and the clean energy according to the configuration proportion of the bundling proportion configuration module according to the transmission capacity of the inter-provincial connecting line, the power generation characteristics of related provincial clean energy, the power generation plan of related provincial conventional energy power generation enterprises and the transaction mode, and performing cross-provincial transaction;
the bundling proportion configuration module is used for configuring bundling proportion;
the trading clearing module is used for clearing various power supplies reporting trading electric quantity according to the sequence of photovoltaic components, wind power components, hydroelectric components and thermal power components and the sequence of electricity selling prices from low to high; wherein the clear electricity price is the electricity selling price of the power supply with the highest electricity selling price in the clear electricity quantity.
Optionally, the transaction mode includes: centralized bidding, bilateral negotiation, and listing transactions.
Optionally, the bundling ratio configuring module includes: the system comprises a volume price ratio bundling unit, an electric power ratio bundling unit and a transaction ratio bundling unit;
the volume price ratio bundling unit is used for bundling the new energy and the conventional energy electric quantity according to a preset ratio;
the electric power matching bundling unit is used for bundling different types of new energy sources by utilizing the output characteristics of the different types of new energy sources in different time periods;
the transaction proportion bundling unit is used for bundling and jointly delivering two or more transactions when two or more transactions exist, wherein a single transaction cannot meet the characteristic requirement of the power grid, and the two or more transactions can form a power delivery curve which better accords with the operating characteristic of the power grid after being overlapped with transaction curves of other different requirements.
Optionally, the provincial bundling transaction module has an annual bundling transaction function and a monthly bundling transaction function.
Optionally, the provincial bundling transaction module has an annual bundling transaction function and a monthly bundling transaction function.
Optionally, the bundling ratio configuring module configures an intra-provincial bundling ratio according to the following principle:
determining a bundling ratio according to the installed capacity ratio of the clean energy in province and the conventional energy;
determining a bundling ratio according to the ratio of the generated energy of the intra-provincial clean energy and the conventional energy;
and determining the bundling ratio according to annual/monthly clean energy consumption target tasks, comprehensively considering load prediction, conventional energy power generation capacity and peak regulation capacity, and comprehensively measuring and calculating clean energy and conventional energy.
Optionally, the bundling ratio configuring module configures an inter-provincial bundling ratio according to the following principle:
determining a bundling proportion according to the energy resource characteristics of each transmitted province in a transmitting terminal area power grid, the power generation characteristics of clean energy, the price bearing capacity, the conventional energy peak regulation capacity, the inter-province connecting lines and the transmission capacity of an important power transmission channel;
comprehensively and comprehensively planning trans-regional direct current annual/monthly outsourcing transaction plans of a power grid at a sending end and intra-provincial annual/monthly transaction plans of a regional power grid, and determining bundling proportion on the basis of ensuring the balance of electric energy resources of the regional power grid and on the basis of promoting the marketized outsourcing capacity of clean energy, improving the ultrahigh voltage direct current utilization rate and effectively implementing the trans-regional outsourcing plans of various provinces (regions).
Optionally, the system further includes: and the secondary clear-water discharging module is used for supplementing thermal power components and performing secondary clear-water discharging when the photovoltaic components, the wind power components and the hydropower components report that the electric quantity is insufficient in partial time intervals.
Optionally, the transaction clearing module is used for clearing various power supply declaration transaction electric quantities according to the sequence of photovoltaic components, wind power components, hydroelectric components and thermal power components and the sequence of electricity selling prices from low to high, and specifically comprises:
presetting a typical curve in the system; the typical curve includes: typical trading curves, typical wind power curves, typical photovoltaic curves, and typical hydroelectric curves;
according to the bundling proportion and the typical curve, dividing the transaction electric quantity into wind power components, photovoltaic components, hydroelectric components and thermal power components according to a time-sharing curve;
the wind power components, the photovoltaic components, the hydroelectric components and the thermal power components respectively report the electricity selling quantity and the electricity selling price of each transaction time period to a transaction platform according to a time-sharing segmentation curve;
clearing the reported transaction electric quantity of various power supplies according to the sequence of the photovoltaic components, the wind power components, the hydroelectric components and the thermal power components and the sequence of the electricity selling price from low to high.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a complete trading mode, and mode innovation is developed in all aspects of electric power trading such as a trading basic principle, market member responsibility, a bundling trading mode, bundling proportion configuration, a bundling organization mode, an electric quantity settlement mode and the like, and the fluctuation of new energy can be effectively stabilized through bundling trading, the delivery scale of clean energy is enlarged, and the electric energy trading efficiency is effectively improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a flexible matching bundling and delivery transaction system for clean energy and conventional energy according to an embodiment of the present invention;
FIG. 2 is a flow chart of a water-fire wind-solar bundling transaction organization according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a water-fire wind-solar bundling transaction according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a flexible matching bundling and outward-conveying trading system for clean energy and conventional energy, and aims to solve the problems of randomness, intermittence and fluctuation when new energy is accessed in a large scale, high proportion and high permeability.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a complete trading mode, and mode innovation is developed in all aspects of electric power trading such as a trading basic principle, market member responsibility, a bundling trading mode, bundling proportion configuration, a bundling organization mode, an electric quantity settlement mode and the like, and the fluctuation of new energy can be effectively stabilized through bundling trading, the delivery scale of clean energy is enlarged, and the electric energy trading efficiency is effectively improved.
The technical scheme for realizing flexible matching, bundling and outward delivery transaction of clean energy and conventional energy in a water, fire and wind mode is as follows:
the bundling transaction of the clean energy and the conventional energy is based on the safe and stable operation of the power grid, the principles of scientific overall planning, complementary mutual assistance and mutual benefits are adhered to, the overall balance function of the regional power grid is exerted, the resources between the provinces and the provinces are scientifically and collectively planned, the fluctuation of the clean energy is stabilized, the trans-regional trans-provincial transaction is stabilized, and the consumption of the clean energy is promoted.
The method comprises the following steps of carrying out scientific overall planning on the basis of deep analysis of load characteristics, overall planning of power grid resources, fully excavating bundling transaction potential, and flexibly carrying out bundling transaction of multiple varieties of clean energy and conventional energy according to local conditions and time conditions.
The complementary mutual-aid principle is to flexibly utilize the complementary characteristics of various provincial water, fire, wind, light and energy resources in the region (or between the regions), exert the integral resultant force of the power grid, fully utilize the power transmission capacity of the cross-provincial connecting lines, realize flexible bundling and promote the complementary mutual-aid of the electric energy.
The mutual benefit principle is to respect the will of each market main body, give full play to the market-oriented trade discovery value, reasonably determine the bundling proportion, straighten the price forming mechanism and ensure the market main bodies between provinces and provinces to realize the win-win of many parties.
According to the transaction type, the clean energy and conventional energy bundling transaction system platform is respectively provided with an intra-provincial bundling transaction module and an inter-provincial bundling transaction module.
According to the trading period, the clean energy and conventional energy bundling trading system platform is respectively provided with an annual bundling trading function and a monthly bundling trading function.
According to the transaction mode, the clean energy and conventional energy bundling transaction system platform is respectively provided with functions of centralized bidding, bilateral negotiation, listing transaction and the like.
As shown in fig. 1 and 2, the system for flexibly matching and bundling outgoing transaction between clean energy and conventional energy comprises: the system comprises an intra-provincial bundling transaction module, an inter-provincial bundling transaction module, a bundling proportion configuration module and a transaction clearing module;
the system comprises a bundling proportion configuration module, an intra-provincial bundling transaction module, a trans-regional transaction module and a regional transaction module, wherein the intra-provincial bundling transaction module is used for bundling clean energy and conventional energy according to the clean energy power generation condition of the province, the power generation plan of the conventional energy power generation enterprises and the transaction mode according to the configuration proportion of the bundling proportion configuration module;
the inter-provincial bundling transaction module is used for bundling the conventional energy and the clean energy according to the configuration proportion of the bundling proportion configuration module according to the transmission capacity of the inter-provincial connecting line, the power generation characteristics of related provincial clean energy, the power generation plan of related provincial conventional energy power generation enterprises and the transaction mode, and performing cross-provincial transaction;
the bundling proportion configuration module is used for configuring bundling proportion;
the trading clearing module is used for clearing various power supplies reporting trading electric quantity according to the sequence of photovoltaic components, wind power components, hydroelectric components and thermal power components and the sequence of electricity selling prices from low to high; wherein the clear electricity price is the electricity selling price of the power supply with the highest electricity selling price in the clear electricity quantity.
Specifically, the provincial bundling transaction module has the main functions of: the province with the requirement of delivering the clean energy is provided, the province trading center comprehensively considers the clean energy power generation situation of the province and the power generation plan of the conventional energy power generation enterprise, bundling trading is realized by matching the conventional energy and the clean energy according to the electric energy trading prices of concentrated bidding, bilateral negotiation and listing in the province, then the part of bundled electric energy is taken as an agent by the power-saving network company to participate in cross-regional and cross-province trading, and the stability of the delivery trading and the rationality of the delivery trading price are considered.
The provincial bundling transaction module has the main functions of: when the interconnected regional power grids have the requirement of delivering clean energy, the regional transaction center comprehensively considers the power transmission capacity of the interstorey connecting line, the power generation characteristics of related provincial clean energy, the power generation plan of related provincial conventional energy power generation enterprises, the conventional energy and the clean energy are matched according to the electric energy transaction prices of interstorey centralized bidding, bilateral negotiation and listing, and then the regional transaction center substitutes the electric energy to carry out cross-regional transaction, and the stability of the delivery transaction and the rationality of the delivery transaction price are considered.
The bundling proportion configuration module specifically comprises: volume price ratio bundling unit, electric power ratio bundling unit and trade ratio bundling unit.
Wherein, the unit is beaten to volume price ratio: in one transaction, new energy and conventional energy electric quantity are organized according to a certain proportion, price bearing capacity of a transmitting end and a receiving end, power grid transmitting and receiving capacity are considered, and stable outward transmission is achieved by utilizing the advantages of low price of water and wind and light in northwest and the advantages of resource complementation.
Electric power ratio bundling unit: in one transaction, the output characteristics of different types of new energy at different time intervals are utilized to bundle the different types of new energy, fluctuation is stabilized, and the requirement of the electric power and the electric quantity of the transmitting and receiving end is met. If the complementary characteristics of the high-peak wind, light and low-ebb water are utilized, the time-sharing bundling and outward delivery of new energy is realized.
A trade matching bundling unit: when the single transaction can not meet the requirement of the power grid characteristic and is superposed with other transaction curves with different requirements to form a power transmission curve which better accords with the power grid operating characteristic, the two or more transactions can be bundled and jointly transmitted.
The bundling proportion configuration of the bundling transaction of the clean energy and the conventional energy is based on ensuring the power grid operation safety of a power grid in a sending end region, reservoir application (flood control, ice control and water supply) safety and electric power and electric quantity balance, aims at improving the consumption level of the clean energy, improving the utilization rate of an extra-high voltage direct current transmission channel and improving the marketization scale of the clean energy, and is scientifically determined on the basis of comprehensively considering factors such as power generation characteristics, load prediction, supply and demand matching, transaction price and conveying section.
The bundling configuration proportion of clean energy and conventional energy for bundling transaction in province is determined by reference to the following principles:
(1) and the installed capacity ratio of the clean energy in province to the conventional energy is determined. The annual bundling transaction is determined according to the proportion of the clean energy installation scale and the conventional energy installation scale by considering the newly increased installation capacity of the next year according to the total installation amount of the previous year in the province; and the monthly bundling transaction is determined by considering the next monthly newly increased installed capacity in the monthly installed total amount of the province.
(2) The power generation amount of the clean energy in the province is determined according to the proportion of the power generation amount of the conventional energy. The annual bundling transaction is determined by multiplying the annual generating capacity of the province by the rate of newly increased installation; and (4) carrying out monthly bundling transaction based on the generated energy of the last month of the province, and comprehensively considering the power generation prediction and seasonal characteristics of the clean energy in the next month and determining the newly increased installed capacity of the conventional energy.
(3) According to annual (monthly) clean energy consumption target tasks (electricity abandonment and electricity abandonment rate), load prediction, conventional energy power generation capacity and peak regulation capacity are considered comprehensively, and the bundling ratio of the clean energy and the conventional energy is calculated comprehensively.
In principle, the intra-provincial bundling ratio is not higher than the installed capacity ratio of the clean energy and the conventional energy, and is not lower than the ratio measured according to annual (monthly) clean energy consumption target tasks (electricity abandonment and electricity abandonment rate).
The main purpose of inter-provincial bundling is to improve the utilization rate of extra-high voltage direct current and meet the requirement of stable cross-regional direct current delivery, and the bundling configuration proportion of inter-provincial clean energy and conventional energy is determined by reference to the following principle:
(1) and determining the bundling proportion according to the energy resource characteristics of each transmitted province in the power grid of the transmitting terminal area, the power generation characteristics of clean energy, the price bearing capacity, the conventional energy peak regulation capacity, the inter-provincial connecting lines, the transmission capacity of important power transmission channels and other factors.
(2) Comprehensively and comprehensively planning trans-regional direct current annual (monthly) outward delivery transaction plans of a power grid at a delivery end and intra-provincial annual (monthly) transaction plans of a regional power grid, and determining bundling proportion on the basis of ensuring the balance of electric energy resources of the regional power grid and on the basis of promoting the marketized outward delivery capacity of clean energy, improving the ultrahigh voltage direct current utilization rate and effectively implementing the trans-regional outward delivery plans of all the provinces (regions).
In the main flood season of the hydropower, the hydropower in the month can provide stable output and a reliable starting mode through water regime prediction, and in the monthly bundling transaction organization process, the hydropower can be used as conventional energy and thermal power to compete on the same platform, or the bundling proportion of the hydropower is set in a single row.
The transaction price of the bundling transaction is formed by a market main body in a marketization mode such as autonomous negotiation.
The price of the bundling transaction is calculated and determined according to the following formula:
bundling transaction cost clean energy transaction cost bundling ratio + conventional energy transaction cost (1-bundling ratio).
The bundling ratio is the clean energy trading electric quantity divided by the sum of the clean energy trading electric quantity and the conventional energy trading electric quantity.
The centralized bidding trading price is determined according to the unified clearing price or the declaration price of both parties; the bilateral trading price is executed according to contract agreement of both sides; the listing transaction price is settled at the listing price.
Bundling transactions are preferably conducted in a centralized bidding transaction manner. The centralized bidding adopts unified clearing, and can be determined according to the price corresponding to the intersection point of the buyer declaration curve and the seller declaration curve, or according to the transaction price of the last transaction matching pair.
When the bundling transaction is carried out in a bilateral transaction mode, related electric power transaction institutions can act for related province clean energy and conventional energy enterprises to carry out transactions, and both entrusting parties and agents sign entrusting and acting agreements, wherein the contents of transaction prices, power transmission prices, settlement modes and the like of the bundling transaction are clear in the agreements.
The bilateral negotiation transaction is not limited in principle. In the centralized bidding transaction, in order to avoid market manipulation and ensure the reasonability of the transaction, an upper limit can be set for the quoted price or the settlement price; when the generating capacity of the machine set participating in the bundling transaction is obviously larger than the demand, a lower limit can be set for the quoted price or the settlement price.
And the sending-end provincial trading mechanism carries out bundling trading price and electric quantity measurement and calculation in time according to the trading plan, load prediction, incoming water prediction, clean energy power generation prediction and coal-fired unit peak regulation capacity prediction of the province and comprehensively considering factors such as unit maintenance and shortage elimination, and if the bundling trading requirement exists in the next trading period, the bundling trading plan is reported to the electric power trading mechanism in the annual monthly trading organization.
The electric power transaction mechanism can be in cooperation with an electric power dispatching mechanism according to bundling transaction requirements, the power utilization requirements and the price bearing capacity of a receiving-end power grid are considered comprehensively, and inter-provincial bundling transactions are organized according to bundling proportion and a price mechanism.
And presetting typical curves in the system, wherein the typical curves are divided into typical transaction curves, typical wind power curves, typical photovoltaic curves, typical hydropower curves and the like.
According to the bundling proportion and the typical curve, the transaction electric quantity is divided into wind power components, photovoltaic components, hydroelectric components and thermal power components according to a time-sharing curve, as shown in fig. 3.
And the wind power component, the photovoltaic component, the hydroelectric component and the thermal power component respectively declare the electricity and the electricity price according to time-sharing segmentation curves.
According to the sequence of the photovoltaic components, the wind power components, the hydroelectric components, the thermal power components, the clear electricity and the electricity price are sequentially obtained according to the curve.
If the photovoltaic components, the wind power components and the hydroelectric components report that the electric quantity is insufficient in part of time intervals, the electric quantity is supplemented by the thermal power components, and secondary clearing is carried out.
And (4) superposing and integrating the discharged photovoltaic components, wind power components, hydroelectric components and thermal power components according to the time interval electric quantity and the electricity price to form the complete transaction curve.
To avoid market manipulation to ensure the rationality of the quote, upper and lower prices are set for the quote.
According to the transaction mode, the clean energy resource bundling curve transaction segmented transaction is divided into modes of centralized bidding, bilateral negotiation, listing transaction and the like.
Wherein, the centralized bidding mode is as follows:
(1) and decomposing according to the transaction total amount and the bundling proportion to obtain the clean energy transaction electric quantity and the conventional energy transaction electric quantity.
(2) And determining a total electric power transaction curve according to the electric power demand of the transmitting end and the receiving end, and decomposing the total electric power transaction curve according to the characteristics of the clean energy of the power grid of the transmitting end to obtain the transaction curve of the clean energy and the conventional energy.
(3) And organizing and developing the decomposed clean energy centralized bidding transaction, avoiding market manipulation, ensuring the rationality of quotation, and setting an upper limit to the quotation, wherein the upper limit price is the clean energy electricity price calculated according to the bundling proportion and obtained by reversely deducing the highest quotation limited by the end power grid power consumer. In order to avoid vicious competition, a lower limit can be set for the quoted price, wherein the lower limit is the average minimum value of monthly surplus renewable energy spot-shipment prices in the cross-region of nearly six months of provinces participating in bundling transaction.
(4) And organizing and developing the decomposed conventional energy centralized bidding transaction, avoiding market manipulation, ensuring the rationality of the quoted price, and setting an upper limit to the quoted price, wherein the upper limit price is the conventional energy price calculated according to the bundling proportion and the power price on the internet side obtained by backward pushing according to the highest quoted price limited by the power users of the receiving end power grid.
(5) After the transaction declaration is ended, the transaction clearing price is formed according to the marginal unified clearing or high-low allocation clearing mode.
(6) And combining the power rates and the electric quantities of the cleaned clean energy and the conventional energy according to a bundling ratio to determine the overall delivery transaction electric quantity and the power rate.
The bilateral negotiation mode:
(1) and decomposing according to the transaction total amount and the bundling proportion to obtain the clean energy transaction electric quantity and the conventional energy transaction electric quantity.
(2) And determining a total electric power transaction curve according to the electric power demand of the transmitting end and the receiving end, and decomposing the total electric power transaction curve according to the characteristics of the clean energy of the power grid of the transmitting end to obtain the transaction curve of the clean energy and the conventional energy.
(3) The province of the sending and receiving end carries out bilateral negotiation around the transaction total amount, the bundling proportion, the price mechanism and the transaction curve organization, and determines the transaction electric quantity and the transaction electricity price.
The card hanging transaction mode is as follows:
(1) and decomposing according to the transaction total amount and the bundling proportion to obtain the clean energy transaction electric quantity and the conventional energy transaction electric quantity.
(2) And determining a total electric power transaction curve according to the electric power demand of the transmitting end and the receiving end, and decomposing the total electric power transaction curve according to the characteristics of the clean energy of the power grid of the transmitting end to obtain the transaction curve of the clean energy and the conventional energy.
(3) And (3) issuing listing transaction bulletins and transaction contract items to all qualified market subjects by using the clean energy and conventional energy transaction electric quantity, transaction price and transaction curve decomposed according to the bundling proportion.
(4) Market entities participating in listing transactions are principally picking cards on a "time-first" basis.
The bundling transaction settlement adopts a monthly clearing and monthly settlement mode, namely, the bundling transaction electric quantity of each variety is cleared according to the monthly degree, and the electric quantity and the electric charge are settled according to the month. The power dispatching organization provides information such as actual execution conditions of the trading plan to the power trading organization every month.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A flexible matching bundling and outward-conveying transaction system for clean energy and conventional energy, which is characterized by comprising: the system comprises an intra-provincial bundling transaction module, an inter-provincial bundling transaction module, a bundling proportion configuration module and a transaction clearing module;
the intra-provincial bundling transaction module is used for bundling the clean energy and the conventional energy according to the configuration proportion of the bundling proportion configuration module according to the clean energy power generation condition of the province, the conventional energy power generation enterprise power generation plan and the transaction mode, and performing cross-regional transaction;
the inter-provincial bundling transaction module is used for bundling the conventional energy and the clean energy according to the configuration proportion of the bundling proportion configuration module according to the transmission capacity of the inter-provincial connecting line, the power generation characteristics of related provincial clean energy, the power generation plan of related provincial conventional energy power generation enterprises and the transaction mode, and performing cross-provincial transaction;
the bundling proportion configuration module is used for configuring bundling proportion;
the trading clearing module is used for clearing various power supplies reporting trading electric quantity according to the sequence of photovoltaic components, wind power components, hydroelectric components and thermal power components and the sequence of electricity selling prices from low to high; wherein the clear electricity price is the electricity selling price of the power supply with the highest electricity selling price in the clear electricity quantity.
2. The system of claim 1, wherein the transaction mode comprises: centralized bidding, bilateral negotiation, and listing transactions.
3. The system of claim 1, wherein the bundling ratio configuration module comprises: the system comprises a volume price ratio bundling unit, an electric power ratio bundling unit and a transaction ratio bundling unit;
the volume price ratio bundling unit is used for bundling the new energy and the conventional energy electric quantity according to a preset ratio;
the electric power matching bundling unit is used for bundling different types of new energy sources by utilizing the output characteristics of the different types of new energy sources in different time periods;
the transaction proportion bundling unit is used for bundling and jointly delivering two or more transactions when two or more transactions exist, wherein a single transaction cannot meet the characteristic requirement of the power grid, and the two or more transactions can form a power delivery curve which better accords with the operating characteristic of the power grid after being overlapped with transaction curves of other different requirements.
4. The system of claim 1, wherein the intra-provincial bundling transaction module has an annual bundling transaction function and a monthly bundling transaction function.
5. The system according to claim 1, wherein the provincial bundling transaction module has an annual bundling transaction function and a monthly bundling transaction function.
6. The system according to claim 1, wherein the bundling ratio configuration module configures the intra-provincial bundling ratio according to the following principle:
determining a bundling ratio according to the installed capacity ratio of the clean energy in province and the conventional energy;
determining a bundling ratio according to the ratio of the generated energy of the intra-provincial clean energy and the conventional energy;
and determining the bundling ratio according to annual/monthly clean energy consumption target tasks, comprehensively considering load prediction, conventional energy power generation capacity and peak regulation capacity, and comprehensively measuring and calculating clean energy and conventional energy.
7. The system according to claim 1, wherein the bundling ratio configuration module configures the inter-provincial bundling ratio according to the following principle:
determining a bundling proportion according to the energy resource characteristics of each transmitted province in a transmitting terminal area power grid, the power generation characteristics of clean energy, the price bearing capacity, the conventional energy peak regulation capacity, the inter-province connecting lines and the transmission capacity of an important power transmission channel;
comprehensively and comprehensively planning trans-regional direct current annual/monthly outsourcing transaction plans of a power grid at a sending end and intra-provincial annual/monthly transaction plans of a regional power grid, and determining bundling proportion on the basis of ensuring the balance of electric energy resources of the regional power grid and on the basis of promoting the marketized outsourcing capacity of clean energy, improving the ultrahigh voltage direct current utilization rate and effectively implementing the trans-regional outsourcing plans of various provinces/regions.
8. The system for flexible match of clean energy to conventional energy bundling and delivery transaction according to claim 1, further comprising: and the secondary clear-water discharging module is used for supplementing thermal power components and performing secondary clear-water discharging when the photovoltaic components, the wind power components and the hydropower components report that the electric quantity is insufficient in partial time intervals.
9. The system for the flexible matching, bundling and outward delivery transaction of clean energy and conventional energy according to claim 1, wherein the transaction clearing module is used for clearing the transaction electric quantity reported by various power supplies according to the sequence of photovoltaic components, wind power components, hydropower components and thermal power components and the sequence of electricity selling price from low to high, and specifically comprises:
presetting a typical curve in the system; the typical curve includes: typical trading curves, typical wind power curves, typical photovoltaic curves, and typical hydroelectric curves;
according to the bundling proportion and the typical curve, dividing the transaction electric quantity into wind power components, photovoltaic components, hydroelectric components and thermal power components according to a time-sharing curve;
the wind power components, the photovoltaic components, the hydroelectric components and the thermal power components respectively report the electricity selling quantity and the electricity selling price of each transaction time period to a transaction platform according to a time-sharing segmentation curve;
clearing the reported transaction electric quantity of various power supplies according to the sequence of the photovoltaic components, the wind power components, the hydroelectric components and the thermal power components and the sequence of the electricity selling price from low to high.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113095628A (en) * | 2021-03-18 | 2021-07-09 | 北京科东电力控制***有限责任公司 | Electric power transaction platform time-interval bidding clearing method and system for promoting clean consumption |
| CN117094753A (en) * | 2023-10-19 | 2023-11-21 | 国网吉林省电力有限公司经济技术研究院 | Transaction method and device for new energy and thermal power bundling cooperation participation market |
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| CN110930188A (en) * | 2019-11-19 | 2020-03-27 | 西安交通大学 | New energy and thermal power bundling transaction pricing method considering resource complementary characteristics |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110930188A (en) * | 2019-11-19 | 2020-03-27 | 西安交通大学 | New energy and thermal power bundling transaction pricing method considering resource complementary characteristics |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113095628A (en) * | 2021-03-18 | 2021-07-09 | 北京科东电力控制***有限责任公司 | Electric power transaction platform time-interval bidding clearing method and system for promoting clean consumption |
| CN113095628B (en) * | 2021-03-18 | 2024-06-07 | 北京科东电力控制***有限责任公司 | Method and system for promoting clean-up and consumption of electric power trading platform by time-interval bidding and clearing |
| CN117094753A (en) * | 2023-10-19 | 2023-11-21 | 国网吉林省电力有限公司经济技术研究院 | Transaction method and device for new energy and thermal power bundling cooperation participation market |
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