CN104967150A - Control method of wind-power-plant real-time generating capacity - Google Patents
Control method of wind-power-plant real-time generating capacity Download PDFInfo
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- CN104967150A CN104967150A CN201510415697.3A CN201510415697A CN104967150A CN 104967150 A CN104967150 A CN 104967150A CN 201510415697 A CN201510415697 A CN 201510415697A CN 104967150 A CN104967150 A CN 104967150A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention provides a control method of a wind-power-plant real-time generating capacity. According to current information and prediction information of a wind power plant, current information of an online thermal generator set in a power grid, information of an online hydraulic generator set and information of a callable generating set of solar energy, nuclear power and the like are integrally considered, a real-time generating capacity of the wind power plant is predicted. Then, according to a step calculating result, start and stop of each wind turbine generator in the wind power plant are controlled so that an unfavorable influence of single wind power generation on the power grid is avoided; fully utilization to a wind power resource is guaranteed and a condition that the generating capacity of the wind power plant surpasses a receiving capacity of the power grid is avoided; the power grid is guaranteed to be operated stably and safely and the wind power plant is guaranteed to carry out effective power generation in real time.
Description
Technical field
The present invention relates to wind generating technology, particularly relate to the control method of the real-time energy output of a kind of wind power plant.
Background technology
Generate electricity the future that the energy output control method of current actual wind energy turbine set only considers wind energy turbine set predicted value and following predicted load, following a period of time inner blower generated output can be predicted to a certain extent, but these methods are not in conjunction with thermal power generation unit, the actual power situation of other generating sets such as hydro-generating Unit, the generated output of wind energy turbine set will be caused so excessive or too small, the too small meeting of generated output of wind energy turbine set causes the waste of wind resource, otherwise the energy output of wind energy turbine set then can be caused to exceed the electrical network amount of dissolving, thus have influence on the reliability service of electrical network.
Existing wind energy turbine set electricity-generating control method is just considered to generate electricity the predicted value of predicted value and following load the future of self, not in conjunction with the actual power Adjustment Performance of other generating sets, and existing wind energy turbine set control method easily causes power network fluctuation, brings certain harm to the quality of power supply.When wind energy turbine set generated output excessively under, the waste of wind resource can be caused, when the power of generating field is excessive, the generated output of wind energy turbine set can be caused to exceed the amount of dissolving of electrical network, thus have influence on the reliability of electrical network.
Summary of the invention
The object of the present invention is to provide the control method of the real-time energy output of a kind of wind energy turbine set, can ensure that stabilization of power grids safe operation and wind energy turbine set effectively generate electricity in real time.
For solving the problem, the invention provides the control method of the real-time energy output of a kind of wind energy turbine set, comprising:
Obtain the power information of controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set;
According to the load prediction of the controlled wind energy turbine set controlled wind energy turbine set generated output of following 10 minutes and the generated output in 30 minutes futures;
Under the static load quality event not considering electrical network, according to the power information obtaining controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set, calculate electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set;
In following 30 minutes amounts of dissolving to controlled wind energy turbine set, the start and stop of each wind turbine generator in controlled wind generating airport are controlled at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network according to the controlled wind energy turbine set generated output of following 10 minutes, generated output, the electrical network of following 30 minutes.
Further, in the above-mentioned methods, obtain the power information of controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set, comprising:
Obtain the total installation of generating capacity of controlled wind energy turbine set in electrical network;
Obtain the total installation of generating capacity of all wind energy turbine set in electrical network;
Obtain the minimum energy output of online hydro-generating Unit in electrical network and real-time generated output;
Obtain the minimum energy output of online thermal power generation unit in electrical network and real-time generated output;
Obtain real-time generated output and following 10 minutes minimum energy output, following 30 minutes minimum energy output of adjustable generating set such as other such as solar energy, nuclear powers etc. in electrical network.
Further, in the above-mentioned methods, electrical network will be obtained by following formulae discovery the amount of dissolving of controlled wind energy turbine set in future in following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network for 30 minutes:
Ap10＝K((P
o-Cop min10)+(Ph-Chp min)-△Load10)，
Ap30＝K((P
o-Cop min30)+(Ph-Chp min)+(Pf-Cf min)-△Load30)，
K＝Pc/tolPw，
Wherein, Ap10 is that electrical network is in following 10 minutes amounts of dissolving to controlled wind energy turbine set, Ap30 is that electrical network is in following 30 minutes amounts of dissolving to controlled wind energy turbine set, Po is the real-time generated output of other adjustable generating sets in electrical network, Copmin10 is the minimum energy output of following 10 minutes other adjustable generating sets in electrical network, Copmin30 is the minimum energy output of following 30 minutes other the adjustable generating sets of electrical network, Ph is the real-time generated output of the online hydro-generating Unit in electrical network, Chpmin is the minimum energy output of the online hydro-generating Unit in electrical network, Pf is the minimum energy output of the online thermal power generation unit in electrical network, Cfpmin is the real-time generated output of the online thermal power generation unit in electrical network, △ Load10 is the minimum energy output of the online thermal power generation unit in electrical network, △ Load30 is the network load variation prediction value of following 30 minutes, Pc is the total installation of generating capacity of controlled wind generating field, and tolPw is the total installation of generating capacity of all wind power plants in electrical network, and K is that controlled wind generates electricity airport to the peak regulation coefficient of electrical network, and the span of usual K is 0≤K≤1.
Further, in the above-mentioned methods, according to the controlled wind energy turbine set generated output of following 10 minutes, following 30 minutes generated output, electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, comprising:
If Pw is the real-time control power of controlled wind energy turbine set, Pw10 is the controlled wind energy turbine set generated output of following 10 minutes, and Pw30 is the controlled wind energy turbine set generated output of following 30 minutes;
Work as Pw10-Pw>Ap10, then the part Wind turbines controlling controlled wind energy turbine set is shut down, and the energy output of controlled wind energy turbine set is reduced, and concrete reduction is: Pw10-Pw-Ap10.
Further, in the above-mentioned methods, according to the controlled wind energy turbine set generated output of following 10 minutes, following 30 minutes generated output, electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, also comprise:
Work as Pw30-Pw>Ap30, then the part Wind turbines controlling controlled wind energy turbine set is shut down, and the energy output of controlled wind energy turbine set is reduced, and concrete reduction is: Pw30-Pw-Ap30.
Further, in the above-mentioned methods, according to the controlled wind energy turbine set generated output of following 10 minutes, following 30 minutes generated output, electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, also comprise:
Work as Pw10-Pw<Ap30; then be in the Wind turbines of stopped status from controlled wind energy turbine set; search energy output and be less than Acp10-Pw10-Pw and the Wind turbines being less than Acp30-Pw30-Pw; if find a qualified Wind turbines, then stop searching and starting the Wind turbines found.
Compared with prior art, the present invention is according to the current information of wind energy turbine set and information of forecasting, consider the current information of thermal power generation unit online in electrical network again, the information of online water generating unit, and solar energy, nuclear powers etc. can call the information of generating set, the real-time energy output of wind energy turbine set is predicted, and then the start and stop of each Wind turbines in wind energy turbine set are controlled according to the result that step calculates, thus avoid the adverse effect that single consideration wind power generation causes to electrical network, both ensure that making full use of wind resource, the energy output of wind energy turbine set can be avoided again to surmount electrical network receiving amount, ensure that stabilization of power grids safe operation and wind energy turbine set effectively generate electricity in real time.
Accompanying drawing explanation
Fig. 1 is the flow chart of the control method of the real-time energy output of wind energy turbine set of one embodiment of the invention.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As shown in Figure 1, the invention provides the control method of the real-time energy output of a kind of wind energy turbine set, comprising:
Step S1, obtains the power information of controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set;
Step S2, according to the load prediction of the controlled wind energy turbine set controlled wind energy turbine set generated output of following 10 minutes and the generated output in 30 minutes futures;
Step S3, under the static load quality event not considering electrical network, according to the power information obtaining controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set, calculate electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set;
Step S4, in following 30 minutes amounts of dissolving to controlled wind energy turbine set, the start and stop of each wind turbine generator in controlled wind generating airport are controlled at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network according to the controlled wind energy turbine set generated output of following 10 minutes, generated output, the electrical network of following 30 minutes.The present embodiment has considered current information and the information of forecasting of wind energy turbine set, consider the information of the current information of thermal power generation unit online in electrical network, online water generating unit again, and solar energy, nuclear powers etc. can call the information of generating set, the network load variation prediction value of following 10 minutes and the network load predicted value in 30 minutes futures, avoid the adverse effect that single consideration wind power generation causes to electrical network, both ensure that making full use of wind resource, in turn ensure that the reliability service of electrical network.
In control method one preferred embodiment of the real-time energy output of wind energy turbine set of the present invention, step S1, obtains the power information of controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set, comprising:
Obtain the total installation of generating capacity Pc of controlled wind energy turbine set in electrical network;
Obtain the total installation of generating capacity tolPw of all wind energy turbine set in electrical network;
Obtain the minimum energy output Chpmin of online hydro-generating Unit in electrical network and real-time generated output Ph;
Obtain the minimum energy output Pf of online thermal power generation unit in electrical network and real-time generated output Cfpmin;
Obtain real-time generated output Po and following 10 minutes minimum energy output Copmin10, following 30 minutes minimum energy output Copmin30 of adjustable generating set such as other such as solar energy, nuclear powers etc. in electrical network.
In control method one preferred embodiment of the real-time energy output of wind energy turbine set of the present invention, step S3, under the static load quality event not considering electrical network, according to controlled wind energy turbine set in acquisition electrical network, all wind energy turbine set, online hydro-generating Unit, the power information of online thermal power generation unit and adjustable generating set, calculate electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in the following 30 minutes amounts of dissolving to controlled wind energy turbine set, electrical network is calculated at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set by following formulae discovery:
Ap10＝K((P
o-Cop min10)+(Ph-Chp min)-△Load10)，
Ap30＝K((P
o-Cop min30)+(Ph-Chp min)+(Pf-Cf min)-△Load30)，
K＝Pc/tolPw，
Wherein, Ap10 is that electrical network is in following 10 minutes amounts of dissolving to controlled wind energy turbine set, Ap30 is that electrical network is in following 30 minutes amounts of dissolving to controlled wind energy turbine set, Po is the real-time generated output of other adjustable generating sets in electrical network, Copmin10 is the minimum energy output of following 10 minutes other adjustable generating sets in electrical network, Copmin30 is the minimum energy output of following 30 minutes other the adjustable generating sets of electrical network, Ph is the real-time generated output of the online hydro-generating Unit in electrical network, Chpmin is the minimum energy output of the online hydro-generating Unit in electrical network, Pf is the minimum energy output of the online thermal power generation unit in electrical network, Cfpmin is the real-time generated output of the online thermal power generation unit in electrical network, △ Load10 is the minimum energy output of the online thermal power generation unit in electrical network, △ Load30 is the network load variation prediction value of following 30 minutes, Pc is the total installation of generating capacity of controlled wind generating field, and tolPw is the total installation of generating capacity of all wind power plants in electrical network, and K is that controlled wind generates electricity airport to the peak regulation coefficient of electrical network, and the span of usual K is 0≤K≤1.
Step S4, according to the controlled wind energy turbine set generated output Pw10 of following 10 minutes, following 30 minutes generated output Pw30, electrical network at the following 10 minutes amount of dissolving Ap10 to controlled wind energy turbine set and electrical network at the following 30 minutes amount of dissolving Ap30 to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, comprising:
If Pw is the real-time control power of controlled wind energy turbine set, Pw10 is the controlled wind energy turbine set generated output of following 10 minutes, and Pw30 is the controlled wind energy turbine set generated output of following 30 minutes;
Work as Pw10-Pw>Ap10, then the part Wind turbines controlling controlled wind energy turbine set is shut down, and the energy output of controlled wind energy turbine set is reduced, and concrete reduction is: Pw10-Pw-Ap10;
Work as Pw30-Pw>Ap30, then the part Wind turbines controlling controlled wind energy turbine set is shut down, and the energy output of controlled wind energy turbine set is reduced, and concrete reduction is: Pw30-Pw-Ap30;
Work as Pw10-Pw<Ap30; then be in the Wind turbines of stopped status from controlled wind energy turbine set; search energy output and be less than Acp10-Pw10-Pw and the Wind turbines being less than Acp30-Pw30-Pw; if find a qualified Wind turbines, then stop searching and starting the Wind turbines found.For realizing constantly in real time monitoring, follow-uply can repeat to perform from step S1 every Preset Time.
In sum, the present invention is according to the current information of wind energy turbine set and information of forecasting, consider the current information of thermal power generation unit online in electrical network again, the information of online water generating unit, and solar energy, nuclear powers etc. can call the information of generating set, the real-time energy output of wind energy turbine set is predicted, and then the start and stop of each Wind turbines in wind energy turbine set are controlled according to the result that step calculates, thus avoid the adverse effect that single consideration wind power generation causes to electrical network, both ensure that making full use of wind resource, the energy output of wind energy turbine set can be avoided again to surmount electrical network receiving amount, ensure that stabilization of power grids safe operation and wind energy turbine set effectively generate electricity in real time.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
Obviously, those skilled in the art can carry out various change and modification to invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. a control method for the real-time energy output of wind energy turbine set, is characterized in that, comprising:
Obtain the power information of controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set;
According to the load prediction of the controlled wind energy turbine set controlled wind energy turbine set generated output of following 10 minutes and the generated output in 30 minutes futures;
Under the static load quality event not considering electrical network, according to the power information obtaining controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set, calculate electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set;
In following 30 minutes amounts of dissolving to controlled wind energy turbine set, the start and stop of each wind turbine generator in controlled wind generating airport are controlled at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network according to the controlled wind energy turbine set generated output of following 10 minutes, generated output, the electrical network of following 30 minutes.
2. the control method of the real-time energy output of wind energy turbine set as claimed in claim 1, is characterized in that, obtains the power information of controlled wind energy turbine set in electrical network, all wind energy turbine set, online hydro-generating Unit, online thermal power generation unit and adjustable generating set, comprising:
Obtain the total installation of generating capacity of controlled wind energy turbine set in electrical network;
Obtain the total installation of generating capacity of all wind energy turbine set in electrical network;
Obtain the minimum energy output of online hydro-generating Unit in electrical network and real-time generated output;
Obtain the minimum energy output of online thermal power generation unit in electrical network and real-time generated output;
Obtain real-time generated output and following 10 minutes minimum energy output, following 30 minutes minimum energy output of adjustable generating set such as other such as solar energy, nuclear powers etc. in electrical network.
3. the control method of the real-time energy output of wind energy turbine set as claimed in claim 2, is characterized in that, electrical network will be obtained by following formulae discovery the amount of dissolving of controlled wind energy turbine set in future in following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network for 30 minutes:
Ap10＝K((P
o-Cop min10)+（Ph-Chp min）-△Load10)，
Ap30＝K((P
o-Cop min30)+（Ph-Chp min）+(Pf-Cf min)-△Load30)，
K＝Pc/tolPw，
Wherein, Ap10 is that electrical network is in following 10 minutes amounts of dissolving to controlled wind energy turbine set, Ap30 is that electrical network is in following 30 minutes amounts of dissolving to controlled wind energy turbine set, Po is the real-time generated output of other adjustable generating sets in electrical network, Copmin10 is the minimum energy output of following 10 minutes other adjustable generating sets in electrical network, Copmin30 is the minimum energy output of following 30 minutes other the adjustable generating sets of electrical network, Ph is the real-time generated output of the online hydro-generating Unit in electrical network, Chpmin is the minimum energy output of the online hydro-generating Unit in electrical network, Pf is the minimum energy output of the online thermal power generation unit in electrical network, Cfpmin is the real-time generated output of the online thermal power generation unit in electrical network, △ Load10 is the minimum energy output of the online thermal power generation unit in electrical network, △ Load30 is the network load variation prediction value of following 30 minutes, Pc is the total installation of generating capacity of controlled wind generating field, and tolPw is the total installation of generating capacity of all wind power plants in electrical network, and K is that controlled wind generates electricity airport to the peak regulation coefficient of electrical network, and the span of usual K is 0≤K≤1.
4. the control method of the real-time energy output of wind energy turbine set as claimed in claim 3, it is characterized in that, according to the controlled wind energy turbine set generated output of following 10 minutes, following 30 minutes generated output, electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, comprising:
If Pw is the real-time control power of controlled wind energy turbine set, Pw10 is the controlled wind energy turbine set generated output of following 10 minutes, and Pw30 is the controlled wind energy turbine set generated output of following 30 minutes;
Work as Pw10-Pw>Ap10, then the part Wind turbines controlling controlled wind energy turbine set is shut down, and the energy output of controlled wind energy turbine set is reduced, and concrete reduction is: Pw10-Pw-Ap10.
5. the control method of the real-time energy output of wind energy turbine set as claimed in claim 4, it is characterized in that, according to the controlled wind energy turbine set generated output of following 10 minutes, following 30 minutes generated output, electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, also comprise:
Work as Pw30-Pw>Ap30, then the part Wind turbines controlling controlled wind energy turbine set is shut down, and the energy output of controlled wind energy turbine set is reduced, and concrete reduction is: Pw30-Pw-Ap30.
6. the control method of the real-time energy output of wind energy turbine set as claimed in claim 5, it is characterized in that, according to the controlled wind energy turbine set generated output of following 10 minutes, following 30 minutes generated output, electrical network at following 10 minutes amounts of dissolving to controlled wind energy turbine set and electrical network in following 30 minutes amounts of dissolving to controlled wind energy turbine set, control the start and stop of each wind turbine generator in controlled wind generating airport, also comprise:
Work as Pw10-Pw<Ap30; then be in the Wind turbines of stopped status from controlled wind energy turbine set; search energy output and be less than Acp10-Pw10-Pw and the Wind turbines being less than Acp30-Pw30-Pw; if find a qualified Wind turbines, then stop searching and starting the Wind turbines found.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105281369A (en) * | 2015-11-13 | 2016-01-27 | 北京天诚同创电气有限公司 | Topological structure of wind power plant, and boost control method, device and system |
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| CN103094902A (en) * | 2013-01-11 | 2013-05-08 | 上海申瑞继保电气有限公司 | Control method for real-time generating capacity of wind farm |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102184472A (en) * | 2011-05-03 | 2011-09-14 | 西安交通大学 | Wind, water and fire united dispatching method based on power grid dispatching side demand |
| CN103094902A (en) * | 2013-01-11 | 2013-05-08 | 上海申瑞继保电气有限公司 | Control method for real-time generating capacity of wind farm |
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Application publication date: 20151007 |