CN103345712A - Method for optimizing medium and long term trans-regional trans-provincial deals and assessing modes of medium and long term trans-regional trans-provincial deals - Google Patents

Method for optimizing medium and long term trans-regional trans-provincial deals and assessing modes of medium and long term trans-regional trans-provincial deals Download PDF

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Publication number
CN103345712A
CN103345712A CN2013102423608A CN201310242360A CN103345712A CN 103345712 A CN103345712 A CN 103345712A CN 2013102423608 A CN2013102423608 A CN 2013102423608A CN 201310242360 A CN201310242360 A CN 201310242360A CN 103345712 A CN103345712 A CN 103345712A
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China
Prior art keywords
trans
long term
optimization
transprovincially
provincial
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CN2013102423608A
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Chinese (zh)
Inventor
郑亚先
郭艳敏
耿建
杨争林
程海花
薛必克
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国家电网公司
中国电力科学研究院
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Priority to CN2013102423608A priority Critical patent/CN103345712A/en
Publication of CN103345712A publication Critical patent/CN103345712A/en

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Abstract

The invention relates to a method for optimizing medium and long term trans-regional trans-provincial deals and assessing the modes of the medium and long term trans-regional trans-provincial deals. The method for optimizing the medium and long term trans-regional trans-provincial deals and assessing the modes of the medium and long term trans-regional trans-provincial deals is characterized by comprising the steps of (1) building a network model, (2) setting an optimization scene according to the different modes, (3) setting optimization parameters, (4) building an optimization model, (5) carrying out optimization calculation, and (6) carrying out comparison, analysis and assessment. The method studies and tries the optimization and assessment of the medium and long term trans-regional trans-provincial deals under the actual power grid operation data, finds out a deal strategy with the priority of economical benefits or comprehensive benefits as a target based on simplification of a power grid model, and carries out optimization and assessment of the medium and long term trans-regional trans-provincial deals, thereby bringing certain guide significances on improving the economy, safety and standardability of a deal scheme. The method can relieve the power shortage situation through trans-regional trans-provincial deals when the power structures in electric energy areas are different, realizes optimized distribution of electricity in a larger range, compensates the shortage through the surplus among the areas, and effectively relieves the imbalance between supply and demand in the areas short of power supply.

Description

Transregional transaction optimization transprovincially of a kind of midium or long term and mode evaluation method

Technical field

The invention belongs to the power automation field, be specifically related to transregional transaction optimization transprovincially of a kind of midium or long term and mode evaluation method.

Background technology

Differ greatly with the regional economy development level because primary energy distributes, each department electric energy deliverability and need for electricity can not be mated fully, need to realize by the trans-regional transaction of electric flux effective adjusting of power resource for this reason; Because there is larger difference in the energy value level of different regions, there is certain economic benefits in trans-regional electric flux transaction; In addition, in the medium-term and long-term stage, because the difference of each electric energy zone power supply architecture, the higher province of water power Billy for example is in the wet season, can alleviate the nervous situation of the higher province of thermoelectricity Billy electric energy by district's transaction transprovincially, and in low water season, the higher province of thermoelectricity Billy can be alleviated the nervous situation of electric energy in the higher province of water power Billy by district transaction transprovincially, realizes power resource distributing rationally in larger scope, interregional electric power surplus and deficiency is helped mutually, effectively alleviates the imbalance between supply and demand in power supply shortage area.

The necessity that has embodied the transregional transaction of electric energy transprovincially that develops rapidly of the transregional transaction of electric energy transprovincially exists, and along with the construction of extra-high voltage rack, the continuous expansion of trans-regional electric flux transaction size, the importance of transregional transaction optimization transprovincially is self-evident, in the medium-term and long-term operation phase, except need are considered the basis of transregional policy transprovincially and normal quantity of electricity constraint, also need to consider the requirement of aspects such as power monitoring, national policy, retrain complicated constraints such as also comprising outsourcing ratio, transaction compliance and be embodied in to optimize.

At present, be limited by the restriction of state-of-the art, the transregional transaction transprovincially of electric power is generally determined the transaction plan according to the demand of the equilibrium of supply and demand, this had both lacked optimization of overall importance, also lack from purchasing aspects such as electric cost, environmental requirement and be optimized, and then realize the technological means of the quantitative test of maximum economic benefit.

Summary of the invention

At the deficiencies in the prior art, the invention provides transregional transaction optimization transprovincially of a kind of midium or long term and mode evaluation method, this method is set by scene, set up performance indicator, take performance indicator comparison mode, realize the analyses and comparison of prioritization scheme under the different trade modes, so realize influencing transaction scheme economic benefit influence the key element quantitative test, help to improve electricity transaction scheme optimization decision-making capability and analysis level.

The objective of the invention is to adopt following technical proposals to realize:

Transregional transaction optimization transprovincially of a kind of midium or long term and mode evaluation method is characterized in that described method comprises:

(1) makes up network model;

(2) according to different mode, set and optimize scene;

(3) set the optimization parameter;

(4) set up the optimization model;

(5) be optimized calculating;

(6) compare, analyze and assess.

Preferably, described step (1) comprises based on electric network model, takes equivalent mode, makes up simplified network model.

Preferably, described step (2) comprises according to the transaction path and the optimization range that participate in the electric energy exchange, sets and optimizes scene.

Preferably, described step (2) comprises hierarchically organized, and namely general headquarters organize transregional optimization, and regional organization transprovincially optimizes; With

Organization of unity, namely general headquarters directly organize transprovincially and optimize.

Preferably, described step (3) comprises according to outsourcing ratio limit, the standby ratio limit of electric quantity balancing and interconnection transmission line capability ratio limit.

Preferably, described step (4) comprises according to " electric quantity balancing " constraint, " section limit " constraint, " outsourcing " constraint, policy constraint, environment protection emission constraint, sets up transregional the transfer transprovincially and optimizes model.

Preferably, described step (5) comprises by linear programming method, calculates optimum transregional plan transprovincially under this pattern.

Preferably, described step (5) comprises that there is optimum solution in calculating, generates and optimizes the result; Do not exist and then point out error message, return step 3.

Preferably, described step (6) comprises that under the different trade modes, the optimization result of formation compares, analyzes, assessment.

Compared with the prior art, beneficial effect of the present invention is:

The present invention carries out research and the trial of transregional transaction optimization transprovincially and assessment under the actual electric network operation data, explore a kind of on the basis of simplifying electric network model, be the trading strategies of target with economic benefit or comprehensive benefit optimum, carry out the method for transregional transaction optimization transprovincially and assessment.The economy, security, the standardization that promote the transaction scheme have certain directive significance.

The present invention can be alleviated the nervous situation of electric energy by district's transaction transprovincially when the difference of each electric energy zone power supply architecture, realize power resource distributing rationally in larger scope, and interregional electric power surplus and deficiency is helped mutually, effectively alleviates the imbalance between supply and demand in power supply shortage area.

Setting by different case scenes, calculate in conjunction with optimizing, realize the comprehensive comparison of many-sided indexs such as optimum economic benefit, social benefit under the different enterprise schemas that conclude the business, for the quality of objective, quantitative assessment, the more transregional enterprise schema that concludes the business, instruct market rules setting, the system design of transregional electricity transaction transprovincially to have reference significance transprovincially.

Realize that the exchange economy benefit influences the quantitative test of key element, helps to improve aid decision making ability and the analysis level of electricity transaction.

Because it is automatic calculating that the optimization that this method relates to is calculated, do not need the participation of a large amount of manpowers, calculated performance also can meet the demands, and can effectively solve transregional scheme and a large amount of manpowers of planning needs of concluding the business in the past transprovincially, rely on artificial experience fully, inefficient disadvantage.

Description of drawings

Fig. 1 is the electrical network simplified network model of a kind of transregional transaction optimization transprovincially provided by the invention and mode evaluation method.

Fig. 2 is a kind of transregional transaction optimization transprovincially provided by the invention and mode evaluation method process flow diagram.

Embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.

Embodiment

1) based on electric network model, makes up simplified network model.

As shown in Figure 1, taking equivalent mode, is a node with provincial Utilities Electric Co. equivalence, and each bar interconnection equivalence is a section between will economizing.For example: 5 zones of model are represented as northeast respectively in the present case, North China, northwest, 5 zones in Central China and East China, and all provinces in 5 zones.

2) according to different trade modes, set and optimize scene, comprise optimization range, be embodied in the main body of participation optimization and the transaction path of electric energy exchange,

Be provided with 2 kinds of trade modes in this example, be respectively:

1. hierarchically organized, namely general headquarters organize transregional transaction, and regional organization transprovincially concludes the business.

Zone company carries out declaring of whole district's electric weight surplus and deficiency according to the balance of each province in the district, declares the average mark post electricity price in the district simultaneously.Based on the constraints such as section restriction of declaration data and interregional interconnection, optimize model and calculate, on the basis of realizing regional electric quantity balancing, reach transregional transaction scheme optimum;

Zone company is satisfying on the basis of transregional transaction, the electric quantity balancing of each province in distinguishing.It is optimum to reach in the district each province's transaction based on interconnection section between the declaration data of province and province.

2. organization of unity, namely general headquarters directly organize transaction transprovincially.

Company of general headquarters directly organizes the each province to carry out declaring of electric weight surplus and deficiency, declares the average mark post electricity price of province simultaneously.Based on the constraints such as section restriction of interconnection between declaration data and province, optimize model and calculate, on the basis of satisfying electric quantity balancing between province, reach the scheme optimum of concluding the business transprovincially.

3) set the optimization parameter, comprise and optimize parameter electric price parameter, outsourcing ratio limit, the standby ratio limit of electric quantity balancing, interconnection transmission line capability ratio limit etc.

4) consider " electric quantity balancing " constraint, " section limit " constraint, " outsourcing " constraint, policy constraint, environment protection emission constraint etc., set up and consider to purchase electric cost, take into account the transregional model of transaction optimization transprovincially of environmental protection constraint, security constraint.Specific as follows:

Objective function:

min z = Σ i Σ j Σ l x i , j , l × p j × ( 1 - l i , j , l ) - p i × x i , j , l - - - ( 1 )

Constraint condition:

s i ≤ g i - ( 1 + r i ) × u i - o i ∀ i , g i > u i - - - ( 2 )

e j &GreaterEqual; ( 1 + r j ) &times; u j - g j - v j &ForAll; j , g j < u j - - - ( 3 )

p l≤t l(1-r l)×h l??????(4)

m l≤v l(1-r l)×h l??????(5)

p i≤o i×u i????????????(6)

y i,j+y j,i≤1??????????(7)

y i,j+y j,k≤1??????????(8)

&Sigma; i = 1 I E ( X i ) &le; E - - - ( 9 )

Wherein: formula (2), (3) are " electric quantity balancing " constraint, and formula (4), (5) are " section limit " constraint, and formula (6) is the constraint of outsourcing electricity, and formula (7), (8) are the policy constraint, and formula (9) is the environment protection emission constraint.

In the formula: p jFor transaction is declared electricity price, p to purchasing electricity side among the i-j iFor transaction is declared electricity price to sale of electricity side among the i-j, l I, j, lBe the network loss rate of transaction to i-j, x I, j, lFor electrical network i passes through interconnection s iI sells electric weight for electrical network, , e jJ buys electric weight for electrical network, , g iBe electrical network i generating capacity, u iBe electrical network i need for electricity, r iBe i node percentage reserve, o iFor the electric weight that electrical network i has arranged is sent plan, v jFor the electric weight that electrical network j has arranged is bought plan.p lBe interconnection l forward transmission electric weight, m lBe interconnection l reverse transfer electric weight, t lBe interconnection l forward power limit, v lBe interconnection l reverse transfer power limit, r lBe interconnection l percentage reserve limit, h lFor interconnection utilizes hourage.o iBe electrical network i outsourcing electricity proportional limit, (i, j) sale of electricity of purchasing between transaction unit i and the transaction unit j concerns E (X to y i) send the environment protection emission that the transaction electric weight produces outside for electrical network i.

5) be optimized calculating, adopt linear programming method to find the solution, calculate optimum transregional plan transprovincially under this pattern.

Respectively at organization of unity and hierarchically organized 2 kinds of transaction scenes, be optimized calculating, wherein under the hierarchically organized scene, need carry out 6 suboptimization and calculate, be embodied in: carry out transregional transaction optimization earlier, carry out transaction optimization transprovincially respectively at 5 zones on this basis.

6) there is optimum solution in result of calculation, generates to optimize the result, carries out next step; Do not exist, then point out concrete error message, return step 3, according to error message, loosen the part constrained parameters, reset the optimization parameter.

7) under the different trade modes, the optimization result of formation compares, analyzes, assessment.

According to organization of unity and hierarchically organized net result, namely the conclusion of the business electric weight between the each province calculates 2 kinds of transaction total revenues under the trade mode respectively.Wherein, under the hierarchically organized trade mode, the transaction income is divided into 2 parts to be calculated, and calculates income according to interregional optimization result earlier, on this basis, calculates income according to optimizing the result between each zone province, always adds at last.

Should be noted that at last: 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 the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of the claim scope of the present invention.

Claims (9)

1. a transregional transaction optimization transprovincially of midium or long term and mode evaluation method is characterized in that described method comprises:
(1) makes up network model;
(2) according to different mode, set and optimize scene;
(3) set the optimization parameter;
(4) set up the optimization model;
(5) be optimized calculating;
(6) compare, analyze and assess.
2. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (1) comprise based on electric network model, take equivalent mode, make up simplified network model.
3. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (2) comprise according to the transaction path and the optimization range that participate in the electric energy exchange, set and optimize scene.
4. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (2) comprises hierarchically organized, and namely general headquarters organize transregional optimization, and regional organization transprovincially optimizes; And organization of unity, namely general headquarters directly organize transprovincially and optimize.
5. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (3) comprises according to outsourcing ratio limit, the standby ratio limit of electric quantity balancing and interconnection transmission line capability ratio limit.
6. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (4) comprises according to " electric quantity balancing " constraint, " section limit " constraint, " outsourcing " constraint, policy constraint, environment protection emission constraint, sets up transregional the transfer transprovincially and optimizes model.
7. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (5) comprise by linear programming method, calculate optimum transregional plan transprovincially under this pattern.
8. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (5) comprise calculating and have optimum solution, generate and optimize the result; Do not exist and then point out error message, return step 3.
9. transregional transaction optimization transprovincially of a kind of midium or long term as claimed in claim 1 and mode evaluation method, described step (6) comprises that under the different trade modes, the optimization result of formation compares, analyzes, assessment.
CN2013102423608A 2013-06-19 2013-06-19 Method for optimizing medium and long term trans-regional trans-provincial deals and assessing modes of medium and long term trans-regional trans-provincial deals CN103345712A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103955776A (en) * 2014-05-14 2014-07-30 国家电网公司 Method for optimizing interprovincial and interregional transaction based on physical route optimization
CN104091210A (en) * 2014-07-01 2014-10-08 国家电网公司 Trans-provincial and trans-regional transaction optimization method based on financial path optimization
CN104463367A (en) * 2014-12-05 2015-03-25 国家电网公司 Power transaction stream optimization method involving power transmission paths
CN104598991A (en) * 2014-12-27 2015-05-06 西安交通大学 Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint
CN105162143A (en) * 2015-09-25 2015-12-16 国家电网公司 Method for determining optimal trading capacity between large regional grids
CN105184396A (en) * 2015-08-26 2015-12-23 国网山东省电力公司经济技术研究院 Trans-regional ultra-high-voltage DC transmission project post-evaluation system
CN105811450A (en) * 2014-12-29 2016-07-27 国家电网公司 Optimized middle- and long-term generating unit combination method
CN103745278B (en) * 2014-01-23 2017-09-01 国家电网公司 It is a kind of to consider three public progresses and the medium-term and long-term Transaction algorithm method of purchases strategies

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103745278B (en) * 2014-01-23 2017-09-01 国家电网公司 It is a kind of to consider three public progresses and the medium-term and long-term Transaction algorithm method of purchases strategies
CN103955776B (en) * 2014-05-14 2017-02-22 国家电网公司 Method for optimizing interprovincial and interregional transaction based on physical route optimization
CN103955776A (en) * 2014-05-14 2014-07-30 国家电网公司 Method for optimizing interprovincial and interregional transaction based on physical route optimization
CN104091210A (en) * 2014-07-01 2014-10-08 国家电网公司 Trans-provincial and trans-regional transaction optimization method based on financial path optimization
CN104091210B (en) * 2014-07-01 2017-06-23 国家电网公司 A kind of transaction optimization method transregional transprovincially based on financial path optimization
CN104463367B (en) * 2014-12-05 2018-08-14 国家电网公司 A kind of flow-optimized method of the electricity transaction being related to transmission path
CN104463367A (en) * 2014-12-05 2015-03-25 国家电网公司 Power transaction stream optimization method involving power transmission paths
CN104598991B (en) * 2014-12-27 2018-04-17 西安交通大学 Consider outer power transmission transaction, transprovincially transregional interconnection transaction and the Unit Combination acquisition methods of security constraint
CN104598991A (en) * 2014-12-27 2015-05-06 西安交通大学 Unit combination acquiring method considering out-going power transaction, transprovincial or interregional line transaction and security constraint
CN105811450A (en) * 2014-12-29 2016-07-27 国家电网公司 Optimized middle- and long-term generating unit combination method
CN105811450B (en) * 2014-12-29 2019-01-04 国家电网公司 A kind of medium-term and long-term Unit Combination method of optimization
CN105184396A (en) * 2015-08-26 2015-12-23 国网山东省电力公司经济技术研究院 Trans-regional ultra-high-voltage DC transmission project post-evaluation system
CN105162143A (en) * 2015-09-25 2015-12-16 国家电网公司 Method for determining optimal trading capacity between large regional grids
CN105162143B (en) * 2015-09-25 2017-12-15 国家电网公司 A kind of determination method of optimal trade capacity between large regional grid

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Application publication date: 20131009