CN111860994A - Spot market trading method and device considering two sides of issue to participate in peak shaving - Google Patents
Spot market trading method and device considering two sides of issue to participate in peak shaving Download PDFInfo
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Abstract
The invention discloses a spot market trading method and a device considering the participation of two sides of a delivery in peak shaving, wherein the method comprises the following steps: performing transaction declaration according to transaction information issued by a market operating organization; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration; according to a preset day-ahead market clearing model, executing day-ahead market clearing on the transaction declaration, and generating a day-ahead market clearing result; and according to a preset real-time market clearing model, performing real-time market trade clearing on the trade declaration, and generating a real-time market trade clearing result. The invention can combine the deep peak regulation at the power generation side, the peak regulation at the user side, the renewable energy consumption and the spot market, fully explore the peak regulation capacity at two sides for exploitation and improve the new energy consumption level.
Description
Technical Field
The invention relates to the technical field of power markets, in particular to a spot market trading method and device considering participation of both sides of delivery in peak shaving.
Background
With the increasing proportion of new energy installed, the consumption of new energy is facing a serious challenge. Aiming at the problem of insufficient peak regulation capacity of the system, the auxiliary service market construction needs to be promoted, demand side management is introduced, the peak regulation potential of a conventional unit is deeply excavated, a user is guided to participate in peak reduction and valley filling, and new energy consumption is expanded. The power generation side is influenced by the output limit of the unit and the performance of the unit, so that the available peak shaving resources are limited. Under the market environment of the electricity selling side, the demand response function of the power users should be actively played, the enthusiasm of the user side for participating in the peak shaving auxiliary service is comprehensively stimulated in the market mechanism design, and the peak shaving resource is provided for the system to consume new energy.
However, only the power generation side deep peak shaving or the user side deep peak shaving is considered, and the problems of insufficient system peak shaving capability, difficulty in new energy consumption, and serious wind and light abandoning phenomena cannot be well solved.
Disclosure of Invention
The purpose of the invention is: aiming at the problems of insufficient system peak regulation capacity, difficult new energy consumption and serious wind and light abandoning phenomena, the invention designs a spot market mode considering that two sides of a development system participate in peak regulation, combines deep peak regulation on a power generation side, peak regulation on a user side, renewable energy consumption and a spot market, fully explores the peak regulation capacity on the two sides of the development system and improves the new energy consumption level. Meanwhile, the method also constructs a spot market clearing model considering the participation of two sides of the dispatching in peak shaving, realizes the combined modeling of the peak shaving market and the spot market clearing, and solves the problem that the climbing constraint of the thermal power unit is difficult to consider when the two markets independently operate.
In order to achieve the above object, the present invention provides a spot market trading method considering participation of both sides of delivery in peak shaving, comprising:
performing transaction declaration according to transaction information issued by a market operating organization; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration;
according to a preset day-ahead market clearing model, executing day-ahead market clearing on the transaction declaration, and generating a day-ahead market clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user can be flexibly adjusted, and the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market can be flexibly adjusted;
according to a preset real-time market clearing model, performing real-time market trade clearing on the trade declaration, and generating a real-time market trade clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted.
Further, the spot market transaction declaration is to make an energy quote, specifically: the thermal power generating unit declares a monotonous non-decreasing multi-section 'electric energy-price' curve before the day, and each section needs to declare a starting point of a power output interval, a terminal point of the power output interval and quotation of the interval.
Further, the peak shaving transaction declaration is to perform peak shaving quotation, and specifically includes: a thermal power generating unit participating in deep peak shaving adopts a mode of capacity ratio down-regulation to declare a monotonous non-decreasing multi-section 'peak shaving contribution-price' curve on the basis of a compensated peak shaving reference day before, and a user participating in peak shaving adopts a mode of power load up-regulation to declare a monotonous non-decreasing multi-section 'peak shaving contribution-price' curve on the basis of a load reference day before, wherein each section of curve comprises a peak shaving contribution starting point, a peak shaving contribution ending point and a quotation in the section.
Further, the preset day-ahead market clearing model is composed of a first objective function and a first constraint condition.
Further, the first objective function includes: the method comprises the following steps of flexibly adjusting the peak regulation cost of a user, non-flexibly adjusting the peak regulation cost of the user, deeply adjusting the peak regulation cost of the thermal power unit and punishing wind and light abandoning of the thermal power unit; the specific formula is as follows:
In the formula, I is the number of the thermal power generating units, N is the total section number of the thermal power generating unit energy quotation,
and PG i,t,nRespectively representing the nth section energy quotation of the thermal power generating unit i and the bid winning amount in the time period t; alpha i, t and beta i, t respectively represent the start-stop cost coefficient of the thermal power generating unit i in the t period, the start-stop cost coefficient is a variable from 0 to 1, and UG on,iAnd UG off,iRespectively representing the starting and stopping costs of the thermal power generating unit i; j is flexible to adjust the total number of users and H is flexibleThe total number of quotes for the user is adjusted,
and
respectively expressing the h-th peak shaving energy quotation and the winning peak shaving electric quantity of the flexible regulation user j in the t period; f is the total number of the non-flexible adjustment users, R is the total number of the quoted prices of the non-flexible adjustment users,
and
respectively representing the peak shaving energy quotation and the winning peak shaving electric quantity of the non-flexible regulation user f in the r-th section of the t period; m represents the total number of segments of energy quotation of the thermal power generating unit participating in deep peak shaving, rG i,t,mAnd RG i,t,mRespectively representing the m-th deep peak-shaving energy quotation and the peak-shaving winning amount of the thermal power generating unit i in the t period; k and V are the number of wind power and photovoltaic power, lambda represents a wind and light abandoning penalty factor, PW k,tRepresents the wind abandon electric quantity P of the fan k in the period tS v,tRepresenting the light rejection quantity of the photovoltaic v in the period t; w1 and w2 are weight coefficients.
Further, the first constraint condition includes: system load balance constraint, line active power flow constraint, thermal power unit deep peak regulation constraint and conventional unit combination constraint conditions; wherein the system load balancing constraint specifically comprises:
In the formula, PW,F k,tAnd PS,F v,tRespectively representing the predicted output of wind power k and photovoltaic v in a t period, and Dt representing the predicted value of the total load of the system in the t period; the left side of the equation is the total output of thermal power, wind power and photovoltaic, and the right side of the equation is the total load of the system;
the line active power flow constraint specifically comprises the following steps:
in the formula, GG i,l、GW k,l、GS v,l、GD b,l、
Respectively representing power generation transfer distribution factors of a thermal power generating unit i, wind power k, photovoltaic v, a node where loads b, j and f are located on a line l, wherein fl, max and fl, min respectively represent the maximum transmission power and the minimum transmission power of the line l;
the thermal power generating unit deep peak regulation constraint specifically comprises the following steps:
in the formula (I), the compound is shown in the specification,
representing the minimum technical contribution, tau, of a thermal power unit ii,tRepresenting the on-off state, tau, of the thermal power generating unit i in a time period ti,t1 denotes start-up,. tau.i,tAnd 0 indicates shutdown.
Further, the preset real-time market clearing model is composed of a second objective function and a second constraint condition.
Further, the second objective function includes: the power generation cost of the thermal power generating unit, the user peak regulation cost, the deep peak regulation cost of the thermal power generating unit and the wind and light abandoning punishment are flexibly adjusted; the concrete formula is as follows:
in the formula, I is the number of the thermal power generating units, N is the total section number of the energy quotation of the thermal power generating units, and pG i,nAnd PG i,t,nRespectively representing the nth section energy quotation of the thermal power generating unit i and the winning power in the time period t An amount; j is the total number of flexibly adjusted users, H is the total number of quoted periods of the flexibly adjusted users,
and
respectively expressing the h-th peak shaving energy quotation and the winning peak shaving electric quantity of the flexible regulation user j in the t period; m represents the total number of segments of energy quotation of the thermal power generating unit participating in deep peak shaving, rG i,t,mAnd RG i,t,mRespectively representing the m-th deep peak-shaving energy quotation and the peak-shaving winning amount of the thermal power generating unit i in the t period; k and V are the number of wind power and photovoltaic power, lambda represents a wind and light abandoning penalty factor, PW k,tRepresents the wind abandon electric quantity P of the fan k in the period tS v,tRepresenting the light rejection quantity of the photovoltaic v in the period t; w1 and w2 are weight coefficients.
Further, the second constraint condition includes: system load balance constraint, line active power flow constraint, thermal power unit deep peak regulation constraint and conventional unit combination constraint conditions; wherein the system load balancing constraint specifically comprises:
in the formula (I), the compound is shown in the specification,
representing the amount of bid winning for the non-flexible adjustment peak-shaving quotation of the user f in the market at the time t;
the line active power flow constraint specifically comprises the following steps:
the thermal power generating unit deep peak regulation constraint specifically comprises the following steps:
the embodiment of the invention also provides a spot market trading device considering the participation of both sides of the delivery in peak shaving, which comprises:
The transaction declaration module is used for performing transaction declaration according to transaction information issued by the market operating mechanism; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration;
the day-ahead market clearing module is used for reporting the transaction according to a preset day-ahead market clearing model, executing day-ahead market transaction clearing and generating a day-ahead market transaction clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user can be flexibly adjusted, and the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market can be flexibly adjusted;
the real-time market clearing module is used for reporting the transaction according to a preset real-time market clearing model, executing real-time market transaction clearing and generating a real-time market transaction clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted.
Compared with the prior art, the spot market trading device considering the two sides of the delivery to participate in peak shaving has the advantages that:
Performing transaction declaration according to transaction information issued by a market operating organization; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration; according to a preset day-ahead market clearing model, executing day-ahead market clearing on the transaction declaration, and generating a day-ahead market clearing result; and according to a preset real-time market clearing model, performing real-time market trade clearing on the trade declaration, and generating a real-time market trade clearing result. The invention can combine the deep peak regulation at the power generation side, the peak regulation at the user side, the renewable energy consumption and the spot market, fully explore the peak regulation capacity at two sides for exploitation and improve the new energy consumption level.
Drawings
In order to more clearly illustrate the technical solution of the present invention, 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 that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a spot market trading method considering participation of both sides of delivery in peak shaving according to a first embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a spot market trading device considering two sides of delivery to participate in peak shaving according to a second embodiment of the present 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 first embodiment of the present invention:
as shown in fig. 1, a spot market trading method considering both sides of a delivery to participate in peak shaving according to a preferred embodiment of the present invention at least comprises the following steps:
s101, transaction declaration is carried out according to transaction information issued by a market operating mechanism; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration;
s102, according to a preset day-ahead market clearing model, executing day-ahead market clearing on the transaction declaration, and generating a day-ahead market clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user can be flexibly adjusted, and the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market can be flexibly adjusted;
S103, according to a preset real-time market clearing model, performing real-time market clearing on the transaction declaration, and generating a real-time market clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted.
It should be noted that spot market trading is an important component of a complete power market system, and plays a role in finding the price of a power commodity together with the medium-and long-term market. That is, through the evaluation of the spot prices over the years, and the prediction of factors that may affect costs in the future, parties that intend to trade power for a long period can talk about a price that both parties agree upon. The spot market provides a marketable means for short-term power supply and demand balance. That is, we sign medium-long term contract with the power generator according to the power utilization prediction, but the power required by the actual power utilization is not always matched with the medium-long term contract, and more or less electricity is required to go to the 'replenishment' or 'selling' on the spot market, so as to realize the short-term power supply and demand balance. The spot market can be compatible with the characteristics of new energy fluctuation, randomness and the like, and is favorable for expanding the new energy consumption space.
In one embodiment of the present invention, for step S101, the transaction declaration is performed according to transaction information issued by a market operating agency; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration; the method specifically comprises the following steps:
the spot market and the peak shaving aid service market are jointly optimized in view of the spot market model with both sides participating in peak shaving. The peak regulation auxiliary service comprises deep peak regulation of the thermal power generating unit and user side peak regulation. The users providing the peak shaving auxiliary service are divided into flexible adjustment users and non-flexible adjustment users according to whether the users have the capability of tracking real-time scheduling instructions. In the peak regulation auxiliary service market, the thermal power generating unit and the flexible regulation user execute according to the real-time market clearing result; and the non-flexible adjustment user does not participate in the real-time market, and the non-flexible adjustment is executed according to the result of the market clearing in the day ahead, and the result of the market clearing in the day ahead is used as the boundary condition of the real-time market.
In one implementation of the present invention, in step S102, the transaction declaration is subjected to a day-ahead market clearing model, and a day-ahead market clearing result is generated; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user can be flexibly adjusted, and the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market can be flexibly adjusted; the method specifically comprises the following steps:
Before the market is opened in the day, a market operating organization issues information such as boundary conditions of the transaction; the thermal power generating unit carries out spot market declaration; thermal power generating units and users who intentionally participate in the peak shaving market report peak shaving transactions according to self abilities; wherein, the energy quotation is carried out when the spot market declares. The thermal power generating unit declares a monotonous non-decreasing multi-section 'electric energy-price' curve before the day, and each section needs to declare a starting point of a power output interval, a terminal point of the power output interval and quotation of the interval.
Wherein, the peak shaving transaction declaration is to carry out peak shaving quotation. The thermal power generating unit participating in deep peak regulation adopts a down-regulation capacity ratio form to declare a monotonous non-decreasing multi-section 'peak regulation contribution-price' curve on the basis of a compensated peak regulation reference day before. On the basis of load reference, users participating in peak shaving adopt the form of up-shaving electric load to declare a monotonous non-decreasing multi-section 'peak shaving contribution-price' curve. Each curve contains a peak shaver contribution starting point, an end point and a quote of the interval.
The market operating mechanism executes the market trading clearing before the day and generates trading clearing results, wherein the trading clearing results comprise the output plan and clearing price of the thermal power generating unit on the next day, the peak-regulation electric quantity in the deep peak-regulation thermal power generating unit, the peak-regulation electric quantity in the user is flexibly regulated, and the peak-regulation electric quantity in the user and the clearing price in the peak-regulation market are non-flexibly regulated.
In a certain embodiment of the present invention, for step S103, the transaction declaration is submitted according to a preset real-time market clearing model, a real-time market clearing is executed, and a real-time market clearing result is generated; wherein the real-time market trading clearing result comprises: the thermal power unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted; the method specifically comprises the following steps:
clearing the real-time market by using the quotation information sealed and stored in the market at the present day; the non-flexible adjustment user does not participate in the real-time market, and the clearing result of the market in the day before is used as the boundary condition of the real-time market; the market operating mechanism executes real-time market trading clearing and generates trading clearing results which comprise thermal power unit output plans and clearing prices 15 minutes to 2 hours in the future, peak-load-balancing electric quantity in the deep peak-load-balancing thermal power unit and peak-load-balancing market clearing prices in the flexible adjustment of the peak-load-balancing electric quantity in users.
In one embodiment of the present invention, the preset day-ahead market clearing model is composed of a first objective function and a first constraint condition; the method specifically comprises the following steps:
The first objective function includes: the method comprises the following steps of flexibly adjusting the peak regulation cost of a user, non-flexibly adjusting the peak regulation cost of the user, the deep peak regulation cost of the thermal power unit and the wind and light abandoning punishment of the thermal power unit; the specific formula is as follows:
in the formula, I is the number of the thermal power generating units, N is the total section number of the energy quotation of the thermal power generating units, and pG i,nAnd PG i,t,nRespectively representing the nth section energy quotation of the thermal power generating unit i and the bid winning amount in the time period t; alpha i, t and beta i, t respectively represent the start-stop cost coefficient of the thermal power generating unit i in the t period, the start-stop cost coefficient is a variable from 0 to 1, and UG on,iAnd UG off,iRespectively representing the starting and stopping costs of the thermal power generating unit i; j is the total number of flexibly adjusted users, H is the total number of quoted periods of the flexibly adjusted users,
and
respectively expressing the h-th peak shaving energy quotation and the winning peak shaving electric quantity of the flexible regulation user j in the t period; f is the total number of the non-flexible adjustment users, R is the total number of the quoted prices of the non-flexible adjustment users,
and
respectively representing the peak shaving energy quotation and the winning peak shaving electric quantity of the non-flexible regulation user f in the r-th section of the t period; m represents the total number of segments of energy quotation of the thermal power generating unit participating in deep peak shaving, rG i,t,mAnd RG i,t,mRespectively representing the m-th deep peak-shaving energy quotation and the peak-shaving winning amount of the thermal power generating unit i in the t period; k and V are the number of wind power and photovoltaic power, lambda represents a wind and light abandoning penalty factor, P W k,tRepresents the wind abandon electric quantity P of the fan k in the period tS v,tRepresenting the light rejection quantity of the photovoltaic v in the period t; w1 and w2 are weight coefficients.
The first constraint includes: system load balance constraint, line active power flow constraint, thermal power unit deep peak regulation constraint and conventional unit combination constraint conditions; wherein the system load balancing constraint specifically comprises:
in the formula, PW,F k,tAnd PS,F v,tRespectively representing the predicted output of wind power k and photovoltaic v in a t period, Dt represents the predicted value of the total system load in the t period,
representing the amount of bid winning for the non-flexible adjustment peak-shaving quotation of the user f in the market at the time t; on the left side of the equation thermal power, wind power and photovoltaicThe total output, equality right system total load;
the line active power flow constraint specifically comprises the following steps:
in the formula, GG i,l、GW k,l、GS v,l、GD b,l、
Respectively representing power generation transfer distribution factors of a thermal power generating unit i, wind power k, photovoltaic v, a node where loads b, j and f are located on a line l, wherein fl, max and fl, min respectively represent the maximum transmission power and the minimum transmission power of the line l;
the thermal power generating unit deep peak regulation constraint specifically comprises the following steps:
in the formula (I), the compound is shown in the specification,
representing the minimum technical contribution, tau, of a thermal power unit ii,tRepresenting the on-off state, tau, of the thermal power generating unit i in a time period ti,t1 denotes start-up,. tau. i,tAnd 0 indicates shutdown.
The conventional unit combination constraint condition is a conventional technical means.
In one embodiment of the present invention, the preset real-time market clearing model is composed of a second objective function and a second constraint condition; the method specifically comprises the following steps:
the second objective function includes: the power generation cost of the thermal power generating unit, the user peak regulation cost, the deep peak regulation cost of the thermal power generating unit and the wind and light abandoning punishment are flexibly adjusted; the concrete formula is as follows:
in the formula, I is the number of the thermal power generating units, N is the total section number of the energy quotation of the thermal power generating units, and pG i,nAnd PG i,t,nRespectively representing the nth section energy quotation of the thermal power generating unit i and the bid winning amount in the time period t; j is the total number of flexibly adjusted users, H is the total number of quoted periods of the flexibly adjusted users,
and
respectively expressing the h-th peak shaving energy quotation and the winning peak shaving electric quantity of the flexible regulation user j in the t period; m represents the total number of segments of energy quotation of the thermal power generating unit participating in deep peak shaving, rG i,t,mAnd RG i,t,mRespectively representing the m-th deep peak-shaving energy quotation and the peak-shaving winning amount of the thermal power generating unit i in the t period; k and V are the number of wind power and photovoltaic power, lambda represents a wind and light abandoning penalty factor, PW k,tRepresents the wind abandon electric quantity P of the fan k in the period tS v,tRepresenting the light rejection quantity of the photovoltaic v in the period t; w1 and w2 are weight coefficients.
In one embodiment of the present invention, the second constraint condition includes: system load balance constraint, line active power flow constraint, thermal power unit deep peak regulation constraint and conventional unit combination constraint conditions; wherein the system load balancing constraint specifically comprises:
in the formula (I), the compound is shown in the specification,
representing the amount of bid winning for the non-flexible adjustment peak-shaving quotation of the user f in the market at the time t;
the line active power flow constraint specifically comprises the following steps:
the thermal power generating unit deep peak regulation constraint specifically comprises the following steps:
the conventional unit combination constraint condition is a conventional technical means.
The embodiment of the invention provides a spot market trading method considering participation of two sides of a delivery in peak shaving, which comprises the following steps: performing transaction declaration according to transaction information issued by a market operating organization; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration; according to a preset day-ahead market clearing model, executing day-ahead market clearing on the transaction declaration, and generating a day-ahead market clearing result; and according to a preset real-time market clearing model, performing real-time market trade clearing on the trade declaration, and generating a real-time market trade clearing result. The invention can combine the deep peak regulation at the power generation side, the peak regulation at the user side, the renewable energy consumption and the spot market, fully explore the peak regulation capacity at two sides for exploitation and improve the new energy consumption level.
Second embodiment of the invention:
as shown in fig. 2, a spot market trading device 200 considering two-sided delivery for peak shaving according to an embodiment of the present invention includes a trade declaration module 201, a day-ahead market clearing module 202, and a real-time market clearing module 203;
the transaction declaration module 201 is used for performing transaction declaration according to transaction information issued by a market operating mechanism; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration;
the day-ahead market clearing module 202 is used for reporting the transaction according to a preset day-ahead market clearing model, executing day-ahead market trade clearing and generating a day-ahead market trade clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market are flexibly adjusted;
the real-time market clearing module 203 is used for reporting the transaction according to a preset real-time market clearing model, executing real-time market transaction clearing and generating a real-time market transaction clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted.
The embodiment of the present invention provides a spot market trading device 200 considering two sides of delivery to participate in peak shaving, which includes: comprises a transaction declaration module 201, a day-ahead market clearing module 202 and a real-time market clearing module 203; the transaction declaration module 201 is used for performing transaction declaration according to transaction information issued by a market operating mechanism; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration; the day-ahead market clearing module 202 is used for reporting the transaction according to a preset day-ahead market clearing model, executing day-ahead market trade clearing and generating a day-ahead market trade clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market are flexibly adjusted; the real-time market clearing module 203 is used for reporting the transaction according to a preset real-time market clearing model, executing real-time market transaction clearing and generating a real-time market transaction clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted. The device can combine the deep peak regulation at the power generation side, the peak regulation at the user side, the renewable energy consumption and the spot market, fully explore the peak regulation capacity at two sides for exploitation, and improve the new energy consumption level.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention. It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
Claims (10)
1. A spot market trading method that considers both sides of issue to participate in peak shaving, comprising:
performing transaction declaration according to transaction information issued by a market operating organization; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration;
according to a preset day-ahead market clearing model, executing day-ahead market clearing on the transaction declaration, and generating a day-ahead market clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user can be flexibly adjusted, and the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market can be flexibly adjusted;
According to a preset real-time market clearing model, performing real-time market trade clearing on the trade declaration, and generating a real-time market trade clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted.
2. The spot market trading method of claim 1, wherein the spot market trade declaration is to make an energy quote, and specifically comprises: the thermal power generating unit declares a monotonous non-decreasing multi-section 'electric energy-price' curve before the day, and each section needs to declare a starting point of a power output interval, a terminal point of the power output interval and quotation of the interval.
3. The spot market trading method of claim 1, wherein the peak shaver transaction declaration is to be a peak shaver quote, and specifically comprises: a thermal power generating unit participating in deep peak shaving adopts a mode of capacity ratio down-regulation to declare a monotonous non-decreasing multi-section 'peak shaving contribution-price' curve on the basis of a compensated peak shaving reference day before, and a user participating in peak shaving adopts a mode of power load up-regulation to declare a monotonous non-decreasing multi-section 'peak shaving contribution-price' curve on the basis of a load reference day before, wherein each section of curve comprises a peak shaving contribution starting point, a peak shaving contribution ending point and a quotation in the section.
4. The spot market trading method of claim 1, wherein the pre-defined day-ahead market clearing model is comprised of a first objective function and a first constraint.
5. The spot market trading method of claim 4, wherein the first objective function comprises: the method comprises the following steps of flexibly adjusting the peak regulation cost of a user, non-flexibly adjusting the peak regulation cost of the user, deeply adjusting the peak regulation cost of the thermal power unit and punishing wind and light abandoning of the thermal power unit; the specific formula is as follows:
in the formula, I is the number of the thermal power generating units, N is the total section number of the energy quotation of the thermal power generating units, and pG i,nAnd PG i,t,nRespectively representing the nth section energy quotation of the thermal power generating unit i and the bid winning amount in the time period t; α i, t and β i, t respectively representThe start-stop cost coefficient of the thermal power generating unit i in the time period t is a variable of 0-1, UG on,iAnd UG off,iRespectively representing the starting and stopping costs of the thermal power generating unit i; j is the total number of flexibly adjusted users, H is the total number of quoted periods of the flexibly adjusted users,
and
respectively expressing the h-th peak shaving energy quotation and the winning peak shaving electric quantity of the flexible regulation user j in the t period; f is the total number of the non-flexible adjustment users, R is the total number of the quoted prices of the non-flexible adjustment users, 
And
respectively representing the peak shaving energy quotation and the winning peak shaving electric quantity of the non-flexible regulation user f in the r-th section of the t period; m represents the total number of segments of energy quotation of the thermal power generating unit participating in deep peak shaving, rG i,t,mAnd RG i,t,mRespectively representing the m-th deep peak-shaving energy quotation and the peak-shaving winning amount of the thermal power generating unit i in the t period; k and V are the number of wind power and photovoltaic power, lambda represents a wind and light abandoning penalty factor, PW k,tRepresents the wind abandon electric quantity P of the fan k in the period tS v,tRepresenting the light rejection quantity of the photovoltaic v in the period t; w1 and w2 are weight coefficients.
6. The spot market trading method of claim 4, wherein the first constraint comprises: system load balance constraint, line active power flow constraint, thermal power unit deep peak regulation constraint and conventional unit combination constraint conditions; wherein the system load balancing constraint specifically comprises:
in the formula, PW,F k,tAnd PS,F v,tRespectively representing the predicted output of wind power k and photovoltaic v in a t period, and Dt representing the predicted value of the total load of the system in the t period; the left side of the equation is the total output of thermal power, wind power and photovoltaic, and the right side of the equation is the total load of the system;
the line active power flow constraint specifically comprises the following steps:
in the formula, GG i,l、GW k,l、GS v,l、GD b,l、
Respectively representing power generation transfer distribution factors of a thermal power generating unit i, wind power k, photovoltaic v, a node where loads b, j and f are located on a line l, wherein fl, max and fl, min respectively represent the maximum transmission power and the minimum transmission power of the line l;
The thermal power generating unit deep peak regulation constraint specifically comprises the following steps:
in the formula, Pi minRepresenting the minimum technical contribution, tau, of a thermal power unit ii,tRepresenting the on-off state, tau, of the thermal power generating unit i in a time period ti,t1 denotes start-up,. tau.i,tAnd 0 indicates shutdown.
7. The spot market trading method of claim 1, wherein the pre-defined real-time market clearing model is comprised of a second objective function and a second constraint.
8. The spot market trading method of claim 7, wherein the second objective function comprises: the power generation cost of the thermal power generating unit, the user peak regulation cost, the deep peak regulation cost of the thermal power generating unit and the wind and light abandoning punishment are flexibly adjusted; the concrete formula is as follows:
in the formula, I is the number of the thermal power generating units, N is the total section number of the energy quotation of the thermal power generating units, and pG i,nAnd PG i,t,nRespectively representing the nth section energy quotation of the thermal power generating unit i and the bid winning amount in the time period t; j is the total number of flexibly adjusted users, H is the total number of quoted periods of the flexibly adjusted users,
and
respectively expressing the h-th peak shaving energy quotation and the winning peak shaving electric quantity of the flexible regulation user j in the t period; m represents the total number of segments of energy quotation of the thermal power generating unit participating in deep peak shaving, r G i,t,mAnd RG i,t,mRespectively representing the m-th deep peak-shaving energy quotation and the peak-shaving winning amount of the thermal power generating unit i in the t period; k and V are the number of wind power and photovoltaic power, lambda represents a wind and light abandoning penalty factor, PW k,tRepresents the wind abandon electric quantity P of the fan k in the period tS v,tRepresenting the light rejection quantity of the photovoltaic v in the period t; w1 and w2 are weight coefficients.
9. A spot market trading method taking into account delivery side-to-side peak shaving according to claims 4 and 7, wherein the second constraint comprises: system load balance constraint, line active power flow constraint, thermal power unit deep peak regulation constraint and conventional unit combination constraint conditions; wherein the system load balancing constraint specifically comprises:
in the formula (I), the compound is shown in the specification,
representing the amount of bid winning for the non-flexible adjustment peak-shaving quotation of the user f in the market at the time t;
the line active power flow constraint specifically comprises the following steps:
the thermal power generating unit deep peak regulation constraint specifically comprises the following steps:
10. a spot market trading device that considers delivery side participation in peak shaving, comprising:
the transaction declaration module is used for performing transaction declaration according to transaction information issued by the market operating mechanism; wherein the transaction declaration comprises: spot market transaction declaration and peak shaving transaction declaration;
The day-ahead market clearing module is used for reporting the transaction according to a preset day-ahead market clearing model, executing day-ahead market transaction clearing and generating a day-ahead market transaction clearing result; wherein the market-ahead trade clearing result comprises: the thermal power generating unit output plan and clearing price on the next day, the peak-load-shifting electric quantity in the deep peak-load-shifting thermal power generating unit, the peak-load-shifting electric quantity in the user can be flexibly adjusted, and the peak-load-shifting electric quantity in the user and the clearing price in the peak-load-shifting market can be flexibly adjusted;
the real-time market clearing module is used for reporting the transaction according to a preset real-time market clearing model, executing real-time market transaction clearing and generating a real-time market transaction clearing result; wherein the real-time market trading clearing result comprises: the thermal power generating unit output plan and the clearing price in 15 minutes to 2 hours in the future, the peak-shaving electric quantity in the deep peak-shaving thermal power generating unit, the peak-shaving electric quantity in the user and the clearing price in the peak-shaving market are flexibly adjusted.
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