CN105023199A - Electric power credit transaction platform construction method based on response load quota - Google Patents

Abstract

The invention discloses an electric power credit transaction platform construction method based on a response load quota. The method is characterized in that the method comprises the steps of: establishing load quota models according to the concept of a response load quota, wherein the load quota models include a response load quota model based on electric power credits and a response load quota distribution model based on an optimal power flow; constructing an electric power credit transaction platform framework with a core of credit exchange and business based on an electric power credit concept; making specific transaction modes based on the electric power credit transaction platform, wherein the transaction modes include credit exchange transaction modes and credit business transaction modes; and applying the credit exchange transaction modes and the credit business transaction modes respectively to specific examples, and carrying out feasibility and validity verification. The electric power credit transaction platform constructed by the method is capable of guaranteeing the deserved economic benefit of a user when the user participates in a demand response and providing a balanced scheme when the user selects not to participate in the demand response or participate in the demand response for a smaller frequency under special conditions.

Description

Based on the construction method of the electric power point trading platform of load-responsive quota

Technical field

The present invention relates to a kind of construction method of the electric power point trading platform based on load-responsive quota, belong to power supply service technical field.

Background technology

Ripe gradually along with support technologies such as intelligent grid collection, sensing, controls, demand response large-scale promotion application becomes possibility, reducing peak load, promotes new forms of energy to dissolve and the importance improved in electricity net safety stable etc. highlights day by day.Practice shows, rational operating mode is the necessary condition that demand response theory and technology research effect is promoted, and relates to the many aspects such as policy conditions, incentive measure, mechanism of exchange and model of project management.For promoting the development of demand response further, Chinese scholars has carried out large quantity research with regard to aspects such as demand response incentive mechanism, business models, lay particular emphasis on and macroscopically solve the problem such as domestic and international market responsibility and supplementary measures, operating mode and incentive mechanism, lack the analysisanddiscusion to a certain detailed programs operating mode.

At present, China begun to take shape take as the leading factor with government, power grid enterprises are subject of implementation, power consumer participates in demand response general layout, time-of-use tariffs, rich withered electricity price lattice project of equal value are widely applied, stimulable type project is in pilot demonstration phase, wherein investment subject is mainly power grid enterprises, but for want of complete incentive program, transparent mechanism of exchange promote that both sides conclude the business, response effect is still not remarkable.Electric power integration is incentive mechanism comparatively compromise under current domestic electrical transportation at sea source lacks, under the overall background that electric power structure is taken further steps to deepen the reform, how to build that feasibility is strong, the demand response trade mode of good operability is that we need the problem of solution badly.

Summary of the invention

The object of the invention is to overcome deficiency of the prior art, a kind of construction method of the electric power point trading platform based on load-responsive quota is provided, the electric power point trading platform adopting the inventive method to build can ensure the economic benefit that user participates in demand response and should obtain, also select under special circumstances not for user/less participation demand response propose compromise proposal.

For achieving the above object, the technical solution adopted in the present invention is: based on the construction method of the electric power point trading platform of load-responsive quota, comprise the steps:

Step one: set up load quota model according to the concept of load-responsive quota, comprises the load-responsive quota model based on electric power integration and the load-responsive allocation of quota model based on optimal load flow;

Step 2: build with accumulated point exchanging based on electric power integral concept, buy and sell electric power point trading platform framework into core;

Step 3: formulate the specific transaction means based on electric power point trading platform, comprises accumulated point exchanging mode of doing business and integration bargain transaction mode;

Step 4: accumulated point exchanging mode of doing business and integration bargain transaction mode are applied to instantiation respectively, carry out feasibility and validation verification.

Load-responsive quota model based on electric power integration described in step one is as follows:

When all electric power accumulated point exchangings being become load-responsive quota:

Constraint condition: (1)

η＝f(t,x,z,j)

When some electrical power accumulated point exchanging being become load-responsive quota:

Constraint condition: (2)

η＝f(t,x,z,j)

In formula: S is electric power integration, D (p _k, T _k) be kth part load-responsive quota; p _kfor kth part load-responsive capacity, T _kfor kth part duration of response; F (t, x, z, j) is for exchanging coefficient; J, for participating in item types, comprises and participates in ordered electric, interruptible load and direct load control three types; T is the response date, also represents seasonal factor; X is user type, comprises resident, industrial user and commercial user three class; Z is user credit grade, comprises the standard of keeping one's word, general standard, warning standard and standard four class of breaking one's promise; Dump power integration after S' refers to and exchanges.

Be three grades of models based on the load-responsive allocation of quota model of optimal load flow described in step one, the output of upper level model is as the input of subordinate's model;

Model 1 be based on optimal load flow constraint load-responsive allocation of quota model, draw the peak response load quota of t period node I, objective function for minimizing via net loss, specifically such as formula shown in (3):

In formula: P _loss(D _i(t), P _g,I(t)) be the via net loss of t period, with this period load variations amount and the meritorious change and changing of exerting oneself; U (m, t) is the scheduling variable of t period load-responsive quota, equal 1 or 0, u (m, t)=1 represent in t period convertible load-responsive quota, u (m, t)=0 represent t period inconvertible load-responsive quota; N is the nodes of supply network, and L is the circuitry number of supply network; P _g,It () is exerted oneself for the power supply of t period at node I place is meritorious; P _d,It () is the burden with power of t period node I; D _it () is the load-responsive quota of t period node I; U _i(t), θ _it voltage magnitude that () is t period node I and phase angle; G _i,J, B _i,Jfor real part and the imaginary part of network node admittance matrix; P _lt () is the effective power flow of t period branch road L, if circuit L two end node is I, J;

Model 2 is the load-responsive allocation of quota models considering different user types, is the distribution of peak response load quota between all types of user type on t period node I, declares load-responsive quota and decompose in proportion, draw according to all types of user

Model 3 is the single user load-responsive allocation of quota models considered user credit grade, exchange time-constrain, for the distribution of certain class user load-responsive quota on t period node I, employing enumerative technique solves, first certain class user declaring load-responsive quota under node I is sorted successively according to user credit grade, if user credit grade is identical, sort successively according to exchange submission time again, choose successively, until declare load-responsive total value to meet D _i,x(t).

The concrete steps of step 2 are as follows:

According to transaction agent, load-responsive rationing transaction role is classified: be divided into power grid enterprises, the third-party institution, power consumer and load agency;

Responsibility and right assignment are carried out to each transaction agent: power grid enterprises are responsible for management and the mandate of load-responsive rationing transaction platform, comprise Rulemaking, the registration of user's access, user credit evaluation, integration original allocation, integration transaction supervision and Transaction Information and issue; The third-party institution can entrust by power grid enterprises and supervise load-responsive rationing transaction platform; Load agency provides for middle-size and small-size user the chance participating in market readjustment, integrates load-responsive quota resource, and given load agency only possesses power consumer agent authority of power.

The mode of doing business of accumulated point exchanging described in step 3 is as follows:

Adopt the apportion model based on the load-responsive quota of optimal load flow that electric power accumulated point exchanging is become corresponding load-responsive quota; In redemption process, transaction platform and user exist twice interactive, one is the load-responsive quota demand generation redeem points amount that transaction platform is submitted according to user, and is judged by user whether participating in exchange, confirm; Two is meeting electrical network demand while, transaction platform according to credit grade, exchange time order and function principle and carry out user's screening, and whether user successfully participated in exchange carry out judging, notifying.

The bargain transaction of integration described in step 3 mode is as follows:

Integration dealing introducing is bidded rule, and user, load agency are divided into confession, need two sides, and transaction platform plays the part of intermediary role, is responsible for brining both sides' transaction together.

Feasibility described in step 4 and validation verification specifically comprise the steps:

4) data analysis of participating user

1.. determine the exchange quota maximal value of each large type of user: industrial user is 20000, commercial user is 11000, and resident is 4000;

2.. determine the dealing integration maximal value of each large type of user: industrial user is 8000, commercial user is 3000, and resident is 1500;

3.. determine the value of user credit grade and correspondence (credit grade x)/(exchanging multiple y) thereof: keep one's word user z/y=0.8/1, general user z/y=1/0.8, warning user z/y=1.2/0.6, user z/y=∞/0 of breaking one's promise;

4.. determine the Type Value of dissimilar user: industrial user and commercial user are 1, resident is 0;

5.. determine different response item object project numerical value: participating in ordered electric/interruptible load is 1, participate in direct load and control to be 1.2;

6.. determine the date numerical value on different response date: spring and autumn is 0.8, and summer is 1, and winter is 1.2;

5) accumulated point exchanging business

1.. for the concrete user or the load agency that participate in exchange, determine its user's name, user type, integration, exchange quota, user gradation according to actual conditions;

2.. redemption request judges:

Screen the user that satisfies condition or load agency according to user gradation: without exchange quota do not participate in exchange, the user that breaks one's promise can not participate in exchanging;

According to user or load proxy data, calculate it and exchange quota;

Filter out the user or load agency that meet and exchange quota;

3.. exchange and successfully judge:

Sort according to user type, exchange time, the user of credit grade to satisfied exchange condition; If user's redeem points sum that certain type meets the demands exceedes integration maximal value, then according to " preferential after user credit grade first preferential, exchange time " principle of ordering, the user that preferential exchange rank is comparatively front, after meeting maximum exchange quota, the user ranked behind does not participate in exchanging;

6) integration dealing business

1.. for the concrete user or the load agency that participate in dealing, determine its user's name, user type, the quotation of supplier's integration, demanding party's integration quotation according to actual conditions;

2.. according to supplier offer height, time principle, Auto-matching supply and demand side is offered, integration uniform market clearing price is supplier's integration maximal value and meets simultaneously to be less than the maximum unit price of integration unit price guiding price and demanding party, if certain class user is without integration purchasing demand, then such user does not participate in this dealing;

3.. transaction results is informed to supply and demand side user by transaction platform respectively;

Accumulated point exchanging business and integration dealing business successful implementation in specific transaction means, show that electric power point trading platform possesses feasibility and validity, otherwise return to step one and carry out inspections correction.

Compared with prior art, the beneficial effect that the present invention reaches is: construct the load-responsive allocation of quota model based on electric power integration and the load-responsive allocation of quota model based on optimal load flow, specify that electric power point trading platform mechanism of permitting the entrance, propose with accumulated point exchanging, dealing is the electric power integration trade mode of core, the constructed electric power point trading platform taking into account load agency possesses feasibility and validity, formed at integration, exchanging and buying and selling in a series of process of exchange makes intelligent interaction theory be fully reflected, both the economic benefit that user participates in demand response and should obtain had been ensured, also select under special circumstances not for user/participate in demand response less to propose compromise proposal.

Accompanying drawing explanation

Fig. 1 is process flow diagram of the present invention.

Fig. 2 is the framework of the electric power point trading platform that the present invention builds.

Fig. 3 is accumulated point exchanging business process map.

Fig. 4 is integration dealing business process map.

Embodiment

Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.

As shown in Figure 1, based on the construction method of the electric power point trading platform of load-responsive quota, comprise the steps:

Step one: set up load quota model according to the concept of load-responsive quota, load-responsive quota refers to the load amount allowing power consumer not participate in or participate in less certain demand response project, form is " XX user: XX KW; XX h ", as certain industrial user have few/do not cut down 250KW and the duration is the load-responsive quota of 2 hours.Here, demand response project refers in particular to the demand response project based on contract, as ordered electric, interruptible load, direct load control etc.Load quota model comprises the load-responsive quota model based on electric power integration and the load-responsive allocation of quota model based on optimal load flow;

1) the load-responsive quota model based on electric power integration is as follows:

When all electric power accumulated point exchangings being become load-responsive quota:

Constraint condition: (1)

η＝f(t,x,z,j)

When some electrical power accumulated point exchanging being become load-responsive quota:

Constraint condition: (2)

η＝f(t,x,z,j)

In formula: S is electric power integration, refer under the electrical network emergency circumstance, electric company gives reward on total mark because of user's responsive electricity grid peak clipping power consumption, is the function relevant to peak clipping power consumption; D (p _k, T _k) be kth part load-responsive quota; p _kfor kth part load-responsive capacity, T _kfor kth part duration of response; F (t, x, z, j) is for exchanging coefficient; J, for participating in item types, comprises and participates in ordered electric, interruptible load and direct load control three types; T is the response date, also represents seasonal factor; X is user type, comprises resident, industrial user and commercial user three class; Z is user credit grade, comprises the standard of keeping one's word, general standard, warning standard and standard four class of breaking one's promise; Dump power integration after S' refers to and exchanges.

2) the load-responsive allocation of quota model based on optimal load flow is three grades of models, and the output of upper level model is as the input of subordinate's model;

Model 1 be based on optimal load flow constraint load-responsive allocation of quota model, draw the peak response load quota of t period node I, objective function for minimizing via net loss, specifically such as formula shown in (3):

In formula: P _loss(D _i(t), P _g,I(t)) be the via net loss of t period, with this period load variations amount and the meritorious change and changing of exerting oneself; U (m, t) is the scheduling variable of t period load-responsive quota, equal 1 or 0, u (m, t)=1 represent in t period convertible load-responsive quota, u (m, t)=0 represent in t period inconvertible load-responsive quota; N is the nodes of supply network, and L is the circuitry number of supply network; P _g,It () is exerted oneself for the power supply of t period at node I place is meritorious; P _d,It () is the burden with power of t period node I; D _it () is the load-responsive quota of t period node I; U _i(t), θ _it voltage magnitude that () is t period node I and phase angle; G _i,J, B _i,Jfor real part and the imaginary part of network node admittance matrix; P _lt () is the effective power flow of t period branch road L, if circuit L two end node is I, J.

For convenience of operation, run early stage at platform, power grid enterprises can distribute load-responsive quota with reference to ordered electric Distribution Indexes principle, namely under the prerequisite taking into account risk and power redundancy, when implementing demand response, the response quota index that sales department of Utilities Electric Co. reserves some participates in encourage user.

Model 2 is the load-responsive allocation of quota models considering different user types, is the distribution of peak response load quota between all types of user type on t period node I, declares load-responsive quota and decompose in proportion, draw according to all types of user

Model 3 is the single user load-responsive allocation of quota models considered user credit grade, exchange time-constrain, for the distribution of certain class user load-responsive quota on t period node I, employing enumerative technique solves, first certain class user declaring load-responsive quota under node I is sorted successively according to user credit grade, if user credit grade is identical, sort successively according to exchange submission time again, choose successively, until declare load-responsive total value to meet D _i,x(t).

Step 2: build with accumulated point exchanging based on electric power integral concept, buy and sell electric power point trading platform framework into core; As shown in Figure 2, be the framework of the electric power point trading platform that the present invention builds.

Electric power point trading platform, by power grid enterprises' straight tube or by third-party institution's trustship, has accumulated point exchanging pond and integration dealing pond, participates in respectively can carrying out relationship trading.For ensureing the circulation of electric power integration, require that electric power integration must concluded the business continuously in two years, otherwise the clearing that expires.

According to transaction agent, load-responsive rationing transaction role is classified: be divided into power grid enterprises, the third-party institution, power consumer and load agency;

Responsibility and right assignment are carried out to each transaction agent: power grid enterprises are responsible for management and the mandate of load-responsive rationing transaction platform, comprise Rulemaking, the registration of user's access, user credit evaluation, integration original allocation, integration transaction supervision and Transaction Information and issue; The third-party institution can entrust by power grid enterprises and supervise load-responsive rationing transaction platform; Load is acted on behalf of as middle-size and small-size user provides the chance participating in market readjustment, integrate load-responsive quota resource, given load agency only possesses power consumer agent authority of power, for ensureing fairness, load agency is only the agency of certain class user, there is not certain load agency and both can act on behalf of commercial user, also can act on behalf of the situation of resident.

Step 3: formulate the specific transaction means based on electric power point trading platform, comprises accumulated point exchanging mode of doing business and integration bargain transaction mode;

Accumulated point exchanging prerequisite is that the last demand response event is announced, and accumulated point exchanging is real-time deal, if successfully exchange, is namely defaulted as and load-responsive quota is applied in this demand response event.Accumulated point exchanging mode of doing business is as follows:

Electric power accumulated point exchanging is become corresponding load-responsive quota based on the apportion model of the load-responsive quota of optimal load flow by employing, and middle-size and small-size user is acted on behalf of by load, large user is direct and transaction platform is exchanged; In redemption process, transaction platform and user exist twice interactive, one is the load-responsive quota demand generation redeem points amount that transaction platform is submitted according to user, and is judged by user whether participating in exchange, confirm; Two is meeting electrical network demand while, transaction platform according to credit grade, exchange time order and function principle and carry out user's screening, and whether user successfully participated in exchange carry out judging, notifying.

In accumulated point exchanging process, multi-exchange pattern is there is between user and load agency, as load agency with 1. deduct a percentage (form such as integration, agency fee) representatively user participate in the remuneration of accumulated point exchanging, can settle accounts or periodical balancing by single, or after 2. load agency buys integration to medium and small user in advance, participate in accumulated point exchanging with user identity, it is consistent that this flow process and integration buy and sell flow process.

For ensureing justice, fairness that dissimilar user exchanges, accumulated point exchanging rule is provided as follows:

1.. for avoiding frequent, small amount integration transaction or disposable redeemed multiple response load quota, maximum, the minimal product score value of each transaction are specified, should not be greater than as user exchanges load-responsive quota y times (0≤y≤1) that user should implement load-responsive.For impelling user actively to improve response quality, treated with a certain discrimination different credit grade user, credit grade is higher, and y value is larger.

2.. limit by redeem points total amount, based on distribution principle, for this fail exchange user upper once exchange time accord priority.

Integration bargain transaction mode is as follows:

Integration dealing introducing is bidded rule, and user, load agency are divided into confession, need two sides, and transaction platform plays the part of intermediary role, is responsible for brining both sides' transaction together.After it should be noted that integration transaction, demanding party user does not need immediately by accumulated point exchanging.Because integration dealing relates to interests in many ways, at the platform transaction initial stage, integration trading rules are limited as follows:

1.. no matter supplier or demanding party, once submit integration quotation or integration demand to and after accepting, user can not revise correlation parameter, is enforced after market pricing by transaction platform to transaction platform.

2.. for avoiding wheel and deal, integration hoarding behavior, on the one hand, transaction platform proposes integration unit price guide line in advance, exceedes the transaction of guide line 20% for integration unit price in real trade, is considered as this part transaction invalid; On the other hand, platform by buying the number of times of integration to user in the regular period, integration amount specifies.

3.. load agency buys and sells with the integration between institute's proxy user and does not belong to transaction platform integration and buy and sell category.Load agency can be used as intermediary business, is responsible for trade matching, extracts certain deduction or as quota polymerization business, after buying integration, is equal to a certain class user and participates in integration dealing to institute's proxy user.

Step 4: accumulated point exchanging mode of doing business and integration bargain transaction mode are applied to instantiation respectively, carry out feasibility and validation verification, specifically comprise the steps:

7) data analysis of participating user

1.. determine the exchange quota maximal value of each large type of user: industrial user is 20000, commercial user is 11000, and resident is 4000;

2.. determine the dealing integration maximal value of each large type of user: industrial user is 8000, commercial user is 3000, and resident is 1500;

3.. determine the value of user credit grade and correspondence (credit grade x)/(exchanging multiple y) thereof: keep one's word user z/y=0.8/1, general user z/y=1/0.8, warning user z/y=1.2/0.6, user z/y=∞/0 of breaking one's promise;

4.. determine the Type Value of dissimilar user: industrial user and commercial user are 1, resident is 0;

5.. determine different response item object project numerical value: participating in ordered electric/interruptible load is 1, participate in direct load and control to be 1.2;

6.. determine the date numerical value on different response date: spring and autumn is 0.8, and summer is 1, and winter is 1.2;

8) accumulated point exchanging business

1.. for the concrete user or the load agency that participate in exchange, determine its user's name, user type, integration, exchange quota, user gradation according to actual conditions;

2.. redemption request judges:

Screen the user that satisfies condition or load agency according to user gradation: without exchange quota do not participate in exchange, the user that breaks one's promise can not participate in exchanging;

According to user or load proxy data, calculate it and exchange quota;

Filter out the user or load agency that meet and exchange quota;

3.. exchange and successfully judge:

Sort according to user type, exchange time, the user of credit grade to satisfied exchange condition; If user's redeem points sum that certain type meets the demands exceedes integration maximal value, then according to " preferential after user credit grade first preferential, exchange time " principle of ordering, the user that preferential exchange rank is comparatively front, after meeting maximum exchange quota, the user ranked behind does not participate in exchanging;

9) integration dealing business

1.. for the concrete user or the load agency that participate in dealing, determine its user's name, user type, the quotation of supplier's integration, demanding party's integration quotation according to actual conditions;

2.. according to supplier offer height, time principle, Auto-matching supply and demand side is offered, integration uniform market clearing price is supplier's integration maximal value and meets simultaneously to be less than the maximum unit price of integration unit price guiding price and demanding party, if certain class user is without integration purchasing demand, then such user does not participate in this dealing;

3.. transaction results is informed to supply and demand side user by transaction platform respectively;

Accumulated point exchanging business and integration dealing business successful implementation in specific transaction means, show that electric power point trading platform possesses feasibility and validity, otherwise return to step one and carry out inspections correction.

Below in conjunction with specific embodiment, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.

(1) data analysis of participating user

1.. determine the exchange quota maximal value of each large type of user: industrial user is 20000, commercial user is 11000, and resident is 4000;

2.. determine the dealing integration maximal value of each large type of user: industrial user is 8000, commercial user is 3000, and resident is 1500;

3.. determine the value of user credit grade and correspondence (credit grade x)/(exchanging multiple y) thereof: keep one's word user z/y=0.8/1, general user z/y=1/0.8, warning user z/y=1.2/0.6, user z/y=∞/0 of breaking one's promise;

4.. determine the Type Value of dissimilar user: industrial user and commercial user are 1, resident is 0;

5.. determine different response item object project numerical value: participating in ordered electric/interruptible load is 1, participate in direct load and control to be 1.2;

6.. determine the date numerical value on different response date: spring and autumn is 0.8, and summer is 1, and winter is 1.2.

(2) accumulated point exchanging business procedure

1.. for the concrete user or the load agency that participate in exchange, determine its user's name, user type, integration, exchange quota, user gradation according to actual conditions, as shown in table 1.

Table 1 participates in the user/load proxy information table of accumulated point exchanging

2.. redemption request judges:

Screen the user that satisfies condition or load agency according to user gradation: without exchange quota do not participate in exchange, the user that breaks one's promise can not participate in exchanging;

User 4 is because belonging to the user that breaks one's promise, and platform refusal participates in exchanging, therefore can not participate in exchanging.The selection result is as shown in table 2.

User/load proxy information table after table 2 screens

According to user or load proxy data, calculate it by formula (1) and (2) and exchange quota;

Integration needed for user 2:

Therefore user 2 can not participate in exchanging.Net result is as shown in table 3.

Table 3 user/load acts on behalf of redemption information table

3.. exchange and successfully judge:

Sort according to user type, exchange time, the user of credit grade to satisfied exchange condition; As shown in table 4.

Table 4 user/load acts on behalf of redemption information table

Exchange with somewhere all types of user and mate maximal value and compare and can obtain: (1) industrial user exchange total mark and meet the demands, user 1 participates in exchanging; (2) commercial user is more because exchanging user, exchange quota larger, cause commercial user to exchange total mark and exceed integration maximal value, according to " preferential after user credit grade first preferential, exchange time " principle of ordering, user 5, user agent 2 finally can participate in exchanging, exchange 10400 response quotas altogether, and user 7 and 6 fails to participate in this exchange.

(3) integration dealing business procedure

1.. for the concrete user or the load agency that participate in dealing, determine its user's name, user type, the quotation of supplier's integration, demanding party's integration quotation according to actual conditions.As shown in table 5.

Table 5 supply and demand side customer quote table

2.. the principles such as height, the time of offering according to supplier, Auto-matching supply and demand side is offered, integration uniform market clearing price is supplier's integration maximal value and meets simultaneously to be less than the maximum unit price of integration unit price guiding price and demanding party, if certain class user is without integration purchasing demand, then such user does not participate in this dealing.Result is as shown in table 6.

Certain integration of table 6 dealing result

Integration uniform market clearing price is supplier's integration maximal value and meets simultaneously to be less than the maximum unit price of integration unit price guiding price and demanding party, industrial user, resident's integration uniform market clearing price are respectively 1.9 and 2.0 yuan/integration, because having integration purchasing demand without commercial user, therefore commercial user does not participate in this dealing.Finally, transaction results is informed to supply and demand side user by transaction platform respectively.

3.. transaction results is informed to supply and demand side user by transaction platform respectively.

Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or equivalent replacement, and not departing from any amendment of spirit and scope of the invention or equivalent replacement, it all should be encompassed in the middle of right of the present invention.

Claims (7)

1., based on the construction method of the electric power point trading platform of load-responsive quota, it is characterized in that, comprise the steps:

Step one: set up load quota model according to the concept of load-responsive quota, comprises the load-responsive quota model based on electric power integration and the load-responsive allocation of quota model based on optimal load flow;

Step 2: build with accumulated point exchanging based on electric power integral concept, buy and sell electric power point trading platform framework into core;

Step 3: formulate the specific transaction means based on electric power point trading platform, comprises accumulated point exchanging mode of doing business and integration bargain transaction mode;

Step 4: accumulated point exchanging mode of doing business and integration bargain transaction mode are applied to instantiation respectively, carry out feasibility and validation verification.

2. the construction method of the electric power point trading platform based on load-responsive quota according to claim 1, is characterized in that, the load-responsive quota model based on electric power integration described in step one is as follows:

When all electric power accumulated point exchangings being become load-responsive quota:

$S\→\underset{k}{\Σ}D(p_k,T_k)$

Constraint condition: $\mathrm{\η}\·\underset{k}{\Σ}(p_k\·T_k)=S$ （1）

η=f(t,x,z,j)

When some electrical power accumulated point exchanging being become load-responsive quota:

$S\→S^{\′}+\underset{k}{\Σ}D(p_k,T_k)$

Constraint condition: $\mathrm{\η}\·\underset{k}{\Σ}(p_k\·T_k)=S-S^{\′}$ （2）

η=f(t,x,z,j)

In formula: S is electric power integration, D (p _k, T _k) be kth part load-responsive quota; p _kfor kth part load-responsive capacity, T _kfor kth part duration of response; F (t, x, z, j) is for exchanging coefficient; J, for participating in item types, comprises and participates in ordered electric, interruptible load and direct load control three types; T is the response date, also represents seasonal factor; X is user type, comprises resident, industrial user and commercial user three class; Z is user credit grade, comprises the standard of keeping one's word, general standard, warning standard and standard four class of breaking one's promise; Dump power integration after S' refers to and exchanges.

3. the construction method of the electric power point trading platform based on load-responsive quota according to claim 1, it is characterized in that, be three grades of models based on the load-responsive allocation of quota model of optimal load flow described in step one, the output of upper level model is as the input of subordinate's model;

Model 1 be based on optimal load flow constraint load-responsive allocation of quota model, draw the peak response load quota of t period node I, objective function for minimizing via net loss, specifically as the formula (3):

min F=P _loss(D _I(t),P _G,I(t)) I,J∈N

$s.t.P_{G,I}\left(t\right)-P_{d,I}\left(t\right)+D_I\left(t\right)=U_J\left(t\right)\underset{J\∈I}{\Σ}\[G_{I,J}{\mathrm{cos\θ}}_{I,J}\left(t\right)+B_{I,J}{\mathrm{sin\θ}}_{I,J}\left(t\right)\]$

$D_I\left(t\right)=\underset{m}{\Σ}{D}_{I,m}\left(t\right)u(m,t)---\left(3\right)$

$P_{G,I}^{\min }\≤P_{G,I}\≤P_{G,I}^{\max }$

$\left|P_L\left(t\right)\right|=\left|P_{I,J}\left(t\right)\right|\≤P_L^{max}$

In formula: P _loss(D _i(t), P _g,I(t)) be the via net loss of t period, with this period load variations amount and the meritorious change and changing of exerting oneself; U (m, t) is the scheduling variable of t period load-responsive quota, equal 1 or 0, u (m, t)=1 represent in t period convertible load-responsive quota, u (m, t)=0 represent in t period inconvertible load-responsive quota; N is the nodes of supply network, and L is the circuitry number of supply network; P _g,It () is exerted oneself for the power supply of t period at node I place is meritorious; P _d,It () is the burden with power of t period node I; D _it () is the load-responsive quota of t period node I; U _i(t), θ _it voltage magnitude that () is t period node I and phase angle; G _i,J, B _i,Jfor real part and the imaginary part of network node admittance matrix; P _lt () is the effective power flow of t period branch road L, if circuit L two end node is I, J;

Model 2 is the load-responsive allocation of quota models considering different user types, is the distribution of peak response load quota between all types of user type on t period node I, declares load-responsive quota and decompose in proportion, draw according to all types of user

Model 3 is the single user load-responsive allocation of quota models considered user credit grade, exchange time-constrain, for the distribution of certain class user load-responsive quota on t period node I, employing enumerative technique solves, first certain class user declaring load-responsive quota under node I is sorted successively according to user credit grade, if user credit grade is identical, sort successively according to exchange submission time again, choose successively, until declare load-responsive total value to meet D _i,x(t).

4. the construction method of the electric power point trading platform based on load-responsive quota according to claim 1, it is characterized in that, the concrete steps of step 2 are as follows:

According to transaction agent, load-responsive rationing transaction role is classified: be divided into power grid enterprises, the third-party institution, power consumer and load agency;

Responsibility and right assignment are carried out to each transaction agent: power grid enterprises are responsible for management and the mandate of load-responsive rationing transaction platform, comprise Rulemaking, the registration of user's access, user credit evaluation, integration original allocation, integration transaction supervision and Transaction Information and issue; The third-party institution can entrust by power grid enterprises and supervise load-responsive rationing transaction platform; Load agency provides for middle-size and small-size user the chance participating in market readjustment, integrates load-responsive quota resource, and given load agency only possesses power consumer agent authority of power.

5. the construction method of the electric power point trading platform based on load-responsive quota according to claim 1, it is characterized in that, the mode of doing business of accumulated point exchanging described in step 3 is as follows:

Adopt the apportion model based on the load-responsive quota of optimal load flow that electric power accumulated point exchanging is become corresponding load-responsive quota; In redemption process, transaction platform and user exist twice interactive, one is the load-responsive quota demand generation redeem points amount that transaction platform is submitted according to user, and is judged by user whether participating in exchange, confirm; Two is meeting electrical network demand while, transaction platform according to credit grade, exchange time order and function principle and carry out user's screening, and whether user successfully participated in exchange carry out judging, notifying.

6. the construction method of the electric power point trading platform based on load-responsive quota according to claim 1, is characterized in that, the bargain transaction of integration described in step 3 mode is as follows:

Integration dealing introducing is bidded rule, and user, load agency are divided into confession, need two sides, and transaction platform plays the part of intermediary role, is responsible for brining both sides' transaction together.

7. the construction method of the electric power point trading platform based on load-responsive quota according to claim 1, it is characterized in that, feasibility described in step 4 and validation verification specifically comprise the steps:

1) data analysis of participating user

1.. determine the exchange quota maximal value of each large type of user: industrial user is 20000, commercial user is 11000, and resident is 4000;

2.. determine the dealing integration maximal value of each large type of user: industrial user is 8000, commercial user is 3000, and resident is 1500;

3.. determine the value of user credit grade and correspondence (credit grade x)/(exchanging multiple y) thereof: keep one's word user z/y=0.8/1, general user z/y=1/0.8, warning user z/y=1.2/0.6, user z/y=∞/0 of breaking one's promise;

4.. determine the Type Value of dissimilar user: industrial user and commercial user are 1, resident is 0;

5.. determine different response item object project numerical value: participating in ordered electric/interruptible load is 1, participate in direct load and control to be 1.2;

6.. determine the date numerical value on different response date: spring and autumn is 0.8, and summer is 1, and winter is 1.2;

2) accumulated point exchanging business

1.. for the concrete user or the load agency that participate in exchange, determine its user's name, user type, integration, exchange quota, user gradation according to actual conditions;

2.. redemption request judges:

Screen the user that satisfies condition or load agency according to user gradation: without exchange quota do not participate in exchange, the user that breaks one's promise can not participate in exchanging;

According to user or load proxy data, calculate it and exchange quota;

Filter out the user or load agency that meet and exchange quota;

3.. exchange and successfully judge:

Sort according to user type, exchange time, the user of credit grade to satisfied exchange condition;

If user's redeem points sum that certain type meets the demands exceedes integration maximal value, then according to " preferential after user credit grade first preferential, exchange time " principle of ordering, the user that preferential exchange rank is comparatively front, after meeting maximum exchange quota, the user ranked behind does not participate in exchanging;

3) integration dealing business

1.. for the concrete user or the load agency that participate in dealing, determine its user's name, user type, the quotation of supplier's integration, demanding party's integration quotation according to actual conditions;

2.. according to supplier offer height, time principle, Auto-matching supply and demand side is offered, integration uniform market clearing price is supplier's integration maximal value and meets simultaneously to be less than the maximum unit price of integration unit price guiding price and demanding party, if certain class user is without integration purchasing demand, then such user does not participate in this dealing;

3.. transaction results is informed to supply and demand side user by transaction platform respectively;

Accumulated point exchanging business and integration dealing business successful implementation in specific transaction means, show that electric power point trading platform possesses feasibility and validity, otherwise return to step one and carry out inspections correction.