CN104182808B - A kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion - Google Patents

A kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion Download PDF

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Publication number
CN104182808B
CN104182808B CN201410422754.6A CN201410422754A CN104182808B CN 104182808 B CN104182808 B CN 104182808B CN 201410422754 A CN201410422754 A CN 201410422754A CN 104182808 B CN104182808 B CN 104182808B
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China
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new energy
energy station
power
power supply
generation schedule
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CN201410422754.6A
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Chinese (zh)
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CN104182808A (en
Inventor
刘德伟
黄越辉
刘纯
项丽
蒙金有
王跃峰
张楠
高云峰
礼晓飞
许晓艳
马烁
李鹏
李丽
柳阳
戴松霖
刘延国
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国家电网公司
中国电力科学研究院
国网宁夏电力公司
中电普瑞张北风电研究检测有限公司
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Abstract

The invention provides a kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion.When power system can not fully dissolve new energy due to peak regulation constraint, main transformer constraint, trend constraint etc., its installed capacity square proportional is accounted for the value of rationing the power supply of each new energy station and minimum target carries out new energy Optimized Operation modeling, new energy station generation schedule is formulated, to ensure Operation of Electric Systems safety.Using this method acquired results, the total amount that can not only ensure to ration the power supply in system is minimum, while also may be such that the result of rationing the power supply distributed by the new energy station that the same terms are limited accounts for that its installed capacity ratio is identical, so as to reach the purpose for justice of rationing the power supply.

Description

A kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion

Technical field

The present invention relates to a kind of generation of electricity by new energy ways to draw up the plan, it is in particular to a kind of based on equal proportion ration the power supply it is new Energy station generation schedule formulating method.

Background technology

Limited by peak regulation constraint and rack constraint etc., part new energy City Regions can not fully dissolve new energy. To ensure system operation safety, it is necessary to formulate the meter that generates electricity to new energy station according to the power prediction result of new energy station Draw, it is desirable to which exerting oneself for new energy station cannot be greater than generation schedule limit value, to ensure the safety of system operation.

Because each new energy station is under the jurisdiction of different doms, therefore when formulating generation schedule, it is necessary to take into account each new The fairness of energy station, while also to avoid carrying out operation of rationing the power supply to the new energy station that need not be rationed the power supply, to ensure new energy The maximum in source is dissolved.However, because the position of each new energy station access system is different, therefore new energy is the reason for exert oneself limited Also it is not quite similar, so must be grouped in advance according to limited reason to new energy station, to ensure new energy in same group The fairness of station power limiting distribution.But power accessed due to electric network swim by line parameter circuit value, each node etc. is influenceed, it is difficult to ensure that The correctness of packet, causing the maximum of new energy to dissolve the fairness rationed the power supply between each station can not be while takes into account.

The content of the invention

In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of new energy station hair rationed the power supply based on equal proportion Electric ways to draw up the plan, when power system can not fully dissolve new energy, this method is with the value of rationing the power supply of each new energy station Account for its installation square proportional and minimum target is scheduled plan modeling, so as to calculate the generating meter of each new energy station Draw.This method can both ensure that the new energy received in system was maximum, while may be such that each new energy in identical confined condition Station ration the power supply value account for its installed capacity ratio complete it is identical, so as to ensure that the fairness of rationing the power supply to each new energy station.

The purpose of the present invention is realized using following technical proposals:

The present invention provides a kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion, and its improvements exists In methods described comprises the steps:

(1) plan modeling is scheduled to new energy station;

(2) constraints of configuration scheduling planning model;

(3) power limiting distribution constraint is added in operation plan model;

(4) relevant data are formulated into operation plan model;

(5) generation schedule of conventional power unit and the power limiting distribution result of new energy station are determined;

(6) generation schedule of new energy station is determined;

(7) issue and perform the generation schedule of conventional power unit and the generation schedule of new energy station.

Further, in the step (1), to the new energy station of identical limited situation, account for its installation with value of rationing the power supply and hold The principle of amount equal proportion carries out fair allocat of rationing the power supply;Its install square proportional and minimum is accounted for the value of rationing the power supply of each new energy station Plan modeling is scheduled as Consideration, object function is as follows:

Wherein,For new energy station i power limiting distribution result;SiFor new energy station i installed capacity, NWFor new energy The quantity of source station.

Further, in the step (2), according to the generation schedule of new energy stationSetting Operation plan model constraints, the constraints includes the limited constraint of main transformer, peak regulation constraint and Line Flow constraint and ensured The constraint of system operation safety, wherein,For new energy station i power prediction result.

Further, in the step (3), power limiting distribution constraint is represented with expressions below:

Wherein:For new energy station i power limiting distribution result;For new energy station i power prediction result;NWFor The quantity of new energy station.

Further, in the step (4), it is pre- that the data relevant with operation plan formulation include each new energy station power Survey data, conventional power unit data, load prediction data and grid topology data.

Further, in the step (5), operation plan model is solved, the generation schedule and new energy of conventional power unit is obtained Source station i power limiting distribution resultThe generation schedule of conventional power unit is minimum excellent by the general power of rationing the power supply of wind-powered electricity generation in system The operation plan solving model for changing target calculates what is obtained.

Further, in the step (6), the generation schedule of new energy station is represented with expressions below:

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

The invention provides a kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion.Work as power system Due to peak regulation constraint, main transformer constraint, trend constraint etc. can not fully dissolve new energy when, only need to add in former operation plan model Enter a Consideration, you can realize the rapid development to new energy station generation schedule, to ensure system operation safety.Using This method can not only ensure the maximum receiving of new energy, while also may be such that the new energy station being limited by the same terms is divided The result of rationing the power supply matched somebody with somebody accounts for that its installed capacity ratio is identical, so as to ensure that the fairness of rationing the power supply to each new energy station.

Brief description of the drawings

Fig. 1 is the flow chart for the new energy station generation schedule formulating method rationed the power supply based on equal proportion that the present invention is provided;

Fig. 2 is the mode of connection schematic diagram of 3 wind power plants of the specific embodiment that the present invention is provided.

Embodiment

The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.

The flow chart such as Fig. 1 institutes for the new energy station generation schedule formulating method rationed the power supply based on equal proportion that the present invention is provided Show, comprise the steps:

(1) for the new energy station under identical limited situation, its installed capacity equal proportion is accounted for using value of rationing the power supply Principle carries out fair allocat of rationing the power supply;Using the value of rationing the power supply of each new energy station account for its install square proportional and it is minimum as consideration because Element is scheduled plan modeling, i.e., object function includes:

Wherein,For new energy station i power limiting distribution result;SiFor new energy station i installed capacity, NWFor new energy The quantity of source station.

(2) according to the generation schedule of new energy stationConfiguration scheduling planning model constraints, The constraints includes the constraint that the limited constraint of main transformer, peak regulation constraint and Line Flow constraint ensure system operation safety, its In,For new energy station i power prediction result.

(3) power limiting distribution constraint is added in operation plan model, power limiting distribution constraint is represented with expressions below:

Wherein:For new energy station i power limiting distribution result;For new energy station i power prediction result;NW For the quantity of new energy station.

(4) inputting the data relevant with operation plan formulation includes each new energy station power prediction data, conventional power unit Data, load prediction data and grid topology data are into operation plan model.

(5) operation plan model is solved, the generation schedule of conventional power unit and new energy station i power limiting distribution result is obtainedIn the step (5), operation plan model is solved, the generation schedule of conventional power unit and rationing the power supply point for new energy station i is obtained With resultThe generation schedule of conventional power unit is the operation plan of the minimum optimization aim of general power of being rationed the power supply by wind-powered electricity generation in system Solving model calculates what is obtained..

(6) generation schedule of each new energy station is calculated, the generation schedule of new energy station is represented with expressions below:

(7) generation schedule of conventional power unit and the generation schedule of new energy station are carried out issuing execution.

Embodiment

The mode of connection of 3 wind power plants is as shown in Fig. 2 Back ground Information is as shown in table 1.Wherein, wind power plant A and B submitting Limited by the transmission limit of line 1, meanwhile, the submitting of 3 wind power plants is limited by the transmission limit of line 2 again.

The wind power plant information of table 1

Under conditions of only considering that 3 wind power plant Transmission Corridors are limited, the method carried using the present invention is to each wind power plant Power limiting distribution situation calculated, acquired results are as shown in table 2.

The wind farm power ration allocation result of table 2

Analyzed by the present embodiment, method proposed by the present invention can ensure the ratio such as wind power plant of the same terms constraint Example is rationed the power supply, and which wind power plant can be the same terms constraint with automatic identification, it is not necessary to artificial setting in advance.

Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, to the greatest extent The present invention is described in detail with reference to above-described embodiment for pipe, those of ordinary skills in the art should understand that:Still The embodiment of the present invention can be modified or equivalent substitution, and without departing from any of spirit and scope of the invention Modification or equivalent substitution, it all should cover among scope of the presently claimed invention.

Claims (1)

1. a kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion, it is characterised in that methods described includes Following step:
(1) plan modeling is scheduled to new energy station;
(2) constraints of configuration scheduling planning model;
(3) power limiting distribution constraint is added in operation plan model;
(4) relevant data are formulated into operation plan model;
(5) generation schedule of conventional power unit and the power limiting distribution result of new energy station are determined;
(6) generation schedule of new energy station is determined;
(7) issue and perform the generation schedule of conventional power unit and the generation schedule of new energy station;
In the step (1), to the new energy station of identical limited situation, the principle of its installed capacity equal proportion is accounted for value of rationing the power supply Progress is rationed the power supply fair allocat;Its install square proportional and minimum are accounted for using the value of rationing the power supply of each new energy station as Consideration to enter Row operation plan is modeled, and object function is as follows:
<mrow> <mi>m</mi> <mi>i</mi> <mi>n</mi> <mrow> <mo>(</mo> <munder> <mo>&amp;Sigma;</mo> <mrow> <mi>i</mi> <mo>&amp;Element;</mo> <msub> <mi>N</mi> <mi>W</mi> </msub> </mrow> </munder> <msup> <mrow> <mo>(</mo> <mfrac> <msubsup> <mi>P</mi> <mi>C</mi> <mi>i</mi> </msubsup> <msub> <mi>S</mi> <mi>i</mi> </msub> </mfrac> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>)</mo> </mrow> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mn>1</mn> <mo>)</mo> <mo>;</mo> </mrow>
Wherein,For new energy station i power limiting distribution result;SiFor new energy station i installed capacity, NWFor new energy The quantity stood;
In the step (2), according to the generation schedule of new energy stationConfiguration scheduling planning model is about Beam condition, the constraints includes the limited constraint of main transformer, peak regulation constraint and Line Flow constraint and ensures system operation safety Constraint, wherein,For new energy station i power prediction result;
In the step (3), power limiting distribution constraint is represented with expressions below:
<mrow> <mn>0</mn> <mo>&amp;le;</mo> <msubsup> <mi>P</mi> <mi>C</mi> <mi>i</mi> </msubsup> <mo>&amp;le;</mo> <msubsup> <mi>P</mi> <mi>P</mi> <mi>i</mi> </msubsup> <mo>,</mo> <mi>i</mi> <mo>&amp;Element;</mo> <msub> <mi>N</mi> <mi>w</mi> </msub> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mn>2</mn> <mo>)</mo> </mrow>
Wherein:For new energy station i power limiting distribution result;For new energy station i power prediction result;NWFor new energy The quantity of source station;
In the step (4), the data relevant with operation plan formulation include each new energy station power prediction data, conventional machine Group data, load prediction data and grid topology data;
In the step (5), operation plan model is solved, the generation schedule of conventional power unit and rationing the power supply for new energy station i is obtained Allocation resultThe generation schedule of conventional power unit is the scheduling meter of the minimum optimization aim of general power of being rationed the power supply by wind-powered electricity generation in system Draw solving model and calculate what is obtained;
In the step (6), the generation schedule of new energy station is represented with expressions below:
<mrow> <msubsup> <mi>P</mi> <mi>S</mi> <mi>i</mi> </msubsup> <mo>=</mo> <msubsup> <mi>P</mi> <mi>P</mi> <mi>i</mi> </msubsup> <mo>-</mo> <msubsup> <mi>P</mi> <mi>C</mi> <mi>i</mi> </msubsup> <mo>,</mo> <mi>i</mi> <mo>&amp;Element;</mo> <msub> <mi>N</mi> <mi>W</mi> </msub> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mn>3</mn> <mo>)</mo> <mo>.</mo> </mrow> 1
CN201410422754.6A 2014-08-25 2014-08-25 A kind of new energy station generation schedule formulating method rationed the power supply based on equal proportion CN104182808B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841163A (en) * 2010-03-15 2010-09-22 三一电气有限责任公司 Grid-connected wind-light combined power generation system and power generation method thereof
CN102496968A (en) * 2011-12-20 2012-06-13 国电南瑞科技股份有限公司 Generation plan optimizing method in intermittent energy and conventional energy coordinated dispatching mode
CN103414206A (en) * 2013-07-12 2013-11-27 国电南瑞科技股份有限公司 Water, fire and light combined optimization power generation scheduling optimization method considering security constraints

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101841163A (en) * 2010-03-15 2010-09-22 三一电气有限责任公司 Grid-connected wind-light combined power generation system and power generation method thereof
CN102496968A (en) * 2011-12-20 2012-06-13 国电南瑞科技股份有限公司 Generation plan optimizing method in intermittent energy and conventional energy coordinated dispatching mode
CN103414206A (en) * 2013-07-12 2013-11-27 国电南瑞科技股份有限公司 Water, fire and light combined optimization power generation scheduling optimization method considering security constraints

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