CN108336768A - A kind of active power of wind power field optimal control method - Google Patents
A kind of active power of wind power field optimal control method Download PDFInfo
- Publication number
- CN108336768A CN108336768A CN201711482234.4A CN201711482234A CN108336768A CN 108336768 A CN108336768 A CN 108336768A CN 201711482234 A CN201711482234 A CN 201711482234A CN 108336768 A CN108336768 A CN 108336768A
- Authority
- CN
- China
- Prior art keywords
- power
- wind
- regulation
- control
- active
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000005457 optimization Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 238000010248 power generation Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- BULVZWIRKLYCBC-UHFFFAOYSA-N phorate Chemical compound CCOP(=S)(OCC)SCSCC BULVZWIRKLYCBC-UHFFFAOYSA-N 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/48—Controlling the sharing of the in-phase component
-
- H02J3/386—
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention proposes a kind of active power of wind power field optimal control method, and the generating capacity of the wind turbine is judged according to Wind turbines predicted value, and arranges in sequence, forms the team control wind turbine difference sequence with priority.Secondly, setting adjusts dead zone in difference sequence, to avoid the frequent fine tuning of wind turbine, reduces wind turbine loss.Finally, wind power plant is considered 1 minute and maximum power variation rate requirement in 10 minutes, to ensure the steady output of active power of wind power field.
Description
Technical Field
The invention relates to the technical field of wind power plant control, in particular to a wind power plant active power optimization control method.
Background
With the increasing consensus of renewable energy sources in the global development, wind power plays an important role in future energy power systems. In recent years, the wind power generation technology in China is rapidly developed, but the proportion of wind power in an energy structure is still increased by means of continuously expanding installed capacity. On the premise that the capacity of wind power is continuously increased, it is very important to improve the generating efficiency of the wind turbine.
The control method of the wind turbine of the wind power plant is an important factor for restricting the power generation efficiency, the difference value between a value issued by a power grid dispatching center and the actual active power of the wind power plant is mostly adopted as a regulation target in the existing active power control method, the active power distribution mode mostly adopts an average distribution or proportional distribution mode, and the influence of frequent fine adjustment of the wind turbine on the service life of the wind turbine is not considered. Although a scholars divides the wind turbines into different priorities by combining the prediction information of the wind turbines of the wind power plant, the uncertainty of prediction is not fully considered, and no dead zone for regulating the wind turbines is set. Meanwhile, the fan with the regulation error larger than the regulation dead zone may not participate in the scheduling regulation. Therefore, the waste of resources is inevitably caused, and the power generation efficiency of the wind power plant is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the method for optimizing and controlling the active power of the wind power plant is provided to achieve robust operation and maximum active power output of the wind power plant.
The solution of the invention is realized by the following steps: a wind power plant active power optimization control method comprises the following steps:
s1, judging whether regulation is needed according to a command issued by a power grid dispatching center or the requirement of a power dispatching system client, if so, entering the following step S2, and if not, entering the following step S6;
s2, dividing the wind turbine generator in the power generation state into an independent control fan and a group control fan according to the current operation state and the maintenance state of the wind turbine generator in the wind power plant;
s3, obtaining the active power difference of the group control fans according to the power predicted value and the real-time active power of each group control fan, and arranging the active power difference according to a set sequence to generate an active power difference sequence participating in the regulation and control of the unit;
s4, calculating an active power regulation value of the group control wind turbine generator;
s5, respectively sending the active power regulation and control values calculated in the step S4 to each fan, and writing the active power regulation and control values into a PLC (programmable logic controller) of each fan to complete current regulation and control;
and S6, setting a control delay, returning to the step S1, and entering the next control period.
Another technical solution of the present invention is that, on the basis of the above, the step S1 specifically includes:
s11, according to the active power instruction P issued by the power grid dispatching centercmdReal-time active power P of wind farmtCalculating the total power regulating quantity P in the regulation and control period of the wind power plant according to the following formula,
P＝Pcmd-Pt
s12, judging whether the active output of the wind power plant needs to be adjusted or not according to the following formula, if so, not adjusting the active output of the wind power plant, and entering the step S6; if the following equation is not satisfied, the process proceeds to step S2.
|P|≤η×Pt
In the above equation, η is the adjustment dead band coefficient.
Another technical solution of the present invention is that, based on the above, the step S3 further includes: and correcting the predicted power sequence of the group control wind turbines to enable the predicted power of each group control wind turbine generator to be between the minimum value and the maximum value of the output of the wind turbine generator.
Another technical solution of the present invention is that, on the basis of the above, the step S3 specifically includes:
s31, setting the number of the wind power plant group control wind turbine generators as n, and in the power regulation and control period of the wind power plant, predicting an information sequence P according to the corrected power of each group control wind turbine generatorf,t+1And actual powerOutput Pa,tCalculating the power difference P of each group control wind turbinetWherein
Pf,t+1＝[Pf,t+1,1,Pf,t+1,2,…,Pf,t+1,n]
Pa,t＝[Pa,t,1,Pa,t,2,…,Pa,t,n]
Pt＝Pf,t+1-Pa,t＝[Pt,1,Pt,2,…,Pt,n]
wherein,i＝1,2,…,n，Pa,t,ireal-time active power P of unit i at t-th timet,nThe active power difference of the fan with the number n regulated and controlled at the t moment is represented;
s32, dividing the power difference PtThe elements in (A) are arranged in the following order to form an active balance sequence ξt；
When the power is increased: ptThe elements in (A) are arranged in the order from big to small;
when the power is reduced: ptThe elements in (A) are arranged in the order from small to large;
in the formula, q is more than or equal to 1 and less than or equal to n, r is more than or equal to 1 and less than or equal to n, h is more than or equal to 1 and less than or equal to n, and the three of q, r and h are not equal to each other,
wherein,representing the regulation and control difference of the fan with the priority i at the t-th moment;
s33, generating an active difference sequence F participating in the regulation and control of the unit,
if m exists, the active difference sequence F participating in the regulation and control unit can be obtained when the following conditions are met,
in the formula, m is more than or equal to 1 and less than or equal to n, and k is more than or equal to 1 and less than or equal to n;
when the power is increased: the condition to be satisfied isAnd is
When the power is reduced: the condition to be satisfied isAnd is
In the formula,indicating the fine adjustment amount of the unit i.
Another technical solution of the present invention is based on the above description whenThe smaller the size, the more preferred the regulation.
Another technical solution of the present invention is that, based on the above, the step S3 further includes: set up and adjust the blind spot unit, specifically do:
if the regulation balance of the unit i meets the following conditions, the power balance of the unit is in a regulation dead zone, namely the unit does not participate in regulation;
in the formula,indicating the fine adjustment amount of the unit i.
Another technical solution of the present invention is that, on the basis of the above, the step S4 specifically includes:
s41 power regulation difference of wind power plant group control wind turbine generatorThe maximum power variation of the wind power plant within 10 minutesMaximum power change rate of wind farm for 1 minuteThe following requirements of (1);
when the power is increased:
in the formula,is the sum of the power change amount of the first 9 minutes of the current regulation,is the sum of the terms in the sequence of power differences whose difference is greater than zero;
when the power is reduced:
at this time, the process of the present invention,is the sum of the terms in the sequence of power differences whose difference is less than zero;
s42, distributing the regulation and control quantity of each group control fan, specifically:
the regulation and control difference P of the fan with the number kt,kComprises the following steps:
regulating value P 'of fan with number k't,kComprises the following steps: p't,k＝Pa,t,k+Pt,kWherein k is 1,2, …, m;
the setting values of other group control fans are unchanged.
On the basis, in the step S5, the active power control value calculated in the step S4 is respectively sent to the remote terminal units of the fans, and is written into the PLC of the fan through MODBUS communication.
According to the technical scheme, the embodiment of the invention has the following advantages:
according to the active power optimization control method for the wind power plant, a research object is a group control fan in the wind power plant. Firstly, judging the generating capacity of the fan according to the predicted value of the wind turbine generator, and arranging the generating capacity according to a certain sequence to form a group control fan difference sequence with a priority order. Secondly, an adjusting dead zone is arranged in the difference sequence, so that frequent fine adjustment of the fan is avoided, and the fan loss is reduced. And finally, considering the requirements of the maximum power change rate of the wind power plant for 1 minute and 10 minutes to ensure the stable output of the active power of the wind power plant.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
Fig. 1 is a control flow chart of an active power optimization control method of a wind power plant according to an embodiment of the present invention;
fig. 2 is an active difference sequence chart in the active power optimization control method of the wind power plant in one embodiment of the invention.
Detailed Description
The present invention will now be described in detail with reference to the drawings, which are given by way of illustration and explanation only and should not be construed to limit the scope of the present invention in any way. Furthermore, features from embodiments in this document and from different embodiments may be combined accordingly by a person skilled in the art from the description in this document.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention is as follows, and as shown in FIG. 1, a wind power plant active power optimization control method comprises the following steps:
s1, judging whether regulation is needed according to a command issued by a power grid dispatching center or the requirement of a power dispatching system client, if so, entering the following step S2, and if not, entering the following step S6;
s2, dividing the wind turbine generator in the power generation state into an independent control fan and a group control fan according to the current operation state and the maintenance state of the wind turbine generator in the wind power plant;
s3, obtaining the active power difference of the group control fans according to the power predicted value and the real-time active power of each group control fan, and arranging the active power difference according to a set sequence to generate an active power difference sequence participating in the regulation and control of the unit;
s4, calculating an active power regulation value of the group control wind turbine generator;
s5, respectively sending the active power regulation and control values calculated in the step S4 to each fan, and writing the active power regulation and control values into a PLC (programmable logic controller) of each fan to complete current regulation and control;
and S6, setting a control delay, returning to the step S1, and entering the next control period.
The active power optimization control method of the wind power plant comprises the steps that firstly, a wind power plant dispatching system judges whether to regulate and control the active output of the wind power plant according to an issued value of a power grid dispatching center or the requirement of a power dispatching system client, then, an individual control fan and a group control fan are divided, then, an active difference sequence of the wind power plant participating in regulation and control of the group control fan is obtained, the active setting value of a group control wind turbine generator set is distributed, the transmission and writing of the setting value, the setting control delay and the like are distributed, therefore, frequent fine adjustment of the fan is avoided, the loss of the fan is reduced, and the stable output of the active power of the.
In step S2, the wind turbines in the power generation state are divided into two types, i.e., an individually controlled wind turbine and a group controlled wind turbine, according to the current operating state and the current maintenance state of the wind turbines in the wind farm. The power generation setting value of the fan is controlled independently and does not change along with the change of the prediction value of the fan, so that the fan of the type does not participate in the dynamic regulation and control of active power, but still participates in the power grid dispatching.
In step S3, an active difference sequence of the wind farm participating in regulation and control of the group control fans is obtained, and the specific steps sequentially include: a. and correcting the predicted power sequence of the group control fan. b. Calculating the power difference P of each group control fant. c. Will PtThe elements in (A) are arranged in a certain order to form an active difference sequence ξt. d. And setting a regulation dead zone unit. e. And generating an active difference sequence F participating in the regulation and control unit, as shown in FIG. 2.
Further, in the step a, the predicted power sequence of the group control fan is corrected to enable the predicted power of each wind turbine generator to be between the minimum value and the maximum value of the fan output, and the corrected predicted power sequence of the group control fan is marked as Pf,t+1＝[Pf,t+1,1,Pf,t+1,2,…,Pf,t+1,n]And n is the number of the group control fans in operation.
Further, in the step b, the number of the group control wind turbines of the wind power plant is set as n, and in the power regulation and control period of the wind power plant, the information sequence P is predicted according to the corrected power of each group control wind turbinef,t+1And the actual power output Pa,tCalculating the power difference P of each group control wind turbinetWherein, the information sequence P is predicted according to the corrected power of each group control wind turbine generatorf,t+1And the actual power output Pa,tCalculating the power difference P of each group control wind turbinet. Wherein,
the power prediction information sequence of the group control wind turbine generator is as follows: pf,t+1＝[Pf,t+1,1,Pf,t+1,2,…,Pf,t+1,n]，
The actual power output of the group control fan is as follows: pa,t＝[Pa,t,1,Pa,t,2,…,Pa,t,n]，
With a power difference of Pt＝Pf,t+1-Pa,t＝[Pt,1,Pt,2,…,Pt,n]。
In the above formula, the first and second carbon atoms are,i＝1,2,…,n，Pa,t,iactive power P of unit i at t-th timet,nAnd the power difference regulated by the fan with the number n at the t-th moment is shown.
Further, step c, dividing the power difference PtThe elements in (A) are arranged in the following order to form an active balance sequence ξt；
When the power is increased: ptThe elements in (A) are arranged in the order from big to small;
when the power is reduced: ptThe elements in (a) are arranged in order from small to large.
The resulting sequence was:
in the formula, q is more than or equal to 1 and less than or equal to n, r is more than or equal to 1 and less than or equal to n, h is more than or equal to 1 and less than or equal to n, and the three of q, r and h are not equal to each other,
wherein,and indicating the regulation difference of the fan with the priority i at the t-th moment. Here, whenThe smaller the size, the more preferred the regulation.
Further, step d, set up and adjust the unit of the dead zone, specifically do:
if the regulation balance of the unit i meets the following conditions, the power balance of the unit is in the regulation dead zone, namely the unit does not participate in regulation and control:
in the formula,indicating the fine adjustment amount of the unit i. If the power difference of a certain fan in the group control wind turbine generator meets the condition, the fan does not participate in regulation and control in the regulation and control period. The purpose of setting the regulation dead zone is to avoid frequent regulation of the wind turbine generator and reduce fan loss.
And step e, generating an active difference sequence F participating in the regulation and control of the unit.
When the power is increased: and c, removing the dead zone of regulation and the part of which the power difference is less than zero from the sequence obtained in the step c, and obtaining an active difference sequence F liter of the unit participating in regulation and control.
Namely: m is present such that
And satisfy the conditionsAnd isIn the above formula, m is more than or equal to 1 and less than or equal to n, and k is more than or equal to 1 and less than or equal to n.
When the power is reduced: and c, removing the dead zone of regulation and the part of the power difference larger than zero from the sequence obtained in the step c, and obtaining the active difference sequence Fdrop of the unit participating in regulation and control.
M is present such that
And satisfy the conditionsAnd isIn the above formula, m is more than or equal to 1 and less than or equal to n, k is more than or equal to 1 and less than or equal to n,indicating the amount of fine tuning of unit i.
On the basis of the foregoing embodiment, in another embodiment of the present invention, the step S1 specifically includes:
s11, according to the active power instruction P issued by the power grid dispatching centercmdReal-time active power P of wind farmtCalculating the total power regulating quantity P in the regulation and control period of the wind power plant according to the following formula,
P＝Pcmd-Pt
s12, judging whether the active output of the wind power plant needs to be adjusted or not according to the following formula, if so, not adjusting the active output of the wind power plant, and entering the step S6; if the following equation is not satisfied, the process proceeds to step S2.
|P|≤η×Pt
In the above equation, η is the adjustment dead band coefficient.
On the basis of the foregoing embodiment, in another embodiment of the present invention, the step S4 specifically includes:
s41 power regulation difference of wind power plant group control wind turbine generatorThe maximum power variation of the wind power plant within 10 minutesMaximum power change rate of wind farm for 1 minuteThe following requirements of (1);
when the power is increased:
in the formula,is the sum of the power change amount of the first 9 minutes of the current regulation,is the sum of the terms in the sequence of power differences whose difference is greater than zero;
when the power is reduced:
at this time, the process of the present invention,is the sum of the terms in the sequence of power differences whose difference is less than zero;
s42, distributing the regulation and control quantity of each group control fan, specifically:
the regulation and control difference P of the fan with the number kt,kComprises the following steps:
regulating value P 'of fan with number k't,kComprises the following steps: p't,k＝Pa,t,k+Pt,kWherein k is 1,2, …, m;
the setting values of other group control fans are unchanged.
On the basis, in the step S5, the active power control value calculated in the step S4 is respectively sent to the remote terminal units of the fans, and is written into the PLC of the fan through MODBUS communication, so as to complete current control.
According to the technical scheme, the embodiment of the invention has the following advantages:
according to the active power optimization control method for the wind power plant, a research object is a group control fan in the wind power plant. Firstly, judging the generating capacity of the fan according to the predicted value of the wind turbine generator, and arranging the generating capacity according to a certain sequence to form a group control fan difference sequence with a priority order. Secondly, an adjusting dead zone is arranged in the difference sequence, so that frequent fine adjustment of the fan is avoided, and the fan loss is reduced. And finally, considering the requirements of the maximum power change rate of the wind power plant for 1 minute and 10 minutes to ensure the stable output of the active power of the wind power plant.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A wind power plant active power optimization control method is characterized by comprising the following steps:
s1, judging whether regulation is needed according to a command issued by a power grid dispatching center or the requirement of a power dispatching system client, if so, entering the following step S2, and if not, entering the following step S6;
s2, dividing the wind turbine generator in the power generation state into an independent control fan and a group control fan according to the current operation state and the maintenance state of the wind turbine generator in the wind power plant;
s3, obtaining the active power difference of the group control fans according to the power predicted value and the real-time active power of each group control fan, and arranging the active power difference according to a set sequence to generate an active power difference sequence participating in the regulation and control of the unit;
s4, calculating an active power regulation value of the group control wind turbine generator;
s5, respectively sending the active power regulation and control values calculated in the step S4 to each fan, and writing the active power regulation and control values into a PLC (programmable logic controller) of each fan to complete current regulation and control;
and S6, setting a control delay, returning to the step S1, and entering the next control period.
2. The wind farm active power optimization control method according to claim 1, wherein the step S1 specifically includes:
s11, according to the active power instruction P issued by the power grid dispatching centercmdReal-time active power P of wind farmtCalculating the total power regulating quantity P in the regulation and control period of the wind power plant according to the following formula,
P＝Pcmd-Pt
s12, judging whether the active output of the wind power plant needs to be adjusted or not according to the following formula, if so, not adjusting the active output of the wind power plant, and entering the step S6; if the following equation is not satisfied, the process proceeds to step S2.
|P|≤η×Pt
In the above equation, η is the adjustment dead band coefficient.
3. The wind farm active power optimization control method according to claim 1, wherein the step S3 further comprises: and correcting the predicted power sequence of the group control wind turbines to enable the predicted power of each group control wind turbine generator to be between the minimum value and the maximum value of the output of the wind turbine generator.
4. The wind farm active power optimization control method according to claim 3, wherein the step S3 specifically comprises:
s31, setting the number of wind generation sets in wind farm group control to be n, and adjusting and controlling the power of the wind farmIn the period, according to the corrected power prediction information sequence P of each group control wind turbine generatorf,t+1And the actual power output Pa,tCalculating the power difference P of each group control wind turbinetWherein
Pf,t+1＝[Pf,t+1,1,Pf,t+1,2,…,Pf,t+1,n]
Pa,t＝[Pa,t,1,Pa,t,2,…,Pa,t,n]
Pt＝Pf,t+1-Pa,t＝[Pt,1,Pt,2,…,Pt,n]
wherein,i＝1,2,…,n，Pa,t,ireal-time active power P of unit i at t-th timet,nThe active power difference of the fan with the number n regulated and controlled at the t moment is represented;
s32, dividing the power difference PtThe elements in (A) are arranged in the following order to form an active balance sequence ξt；
When the power is increased: ptThe elements in (A) are arranged in the order from big to small;
when the power is reduced: ptThe elements in (A) are arranged in the order from small to large;
in the formula, q is more than or equal to 1 and less than or equal to n, r is more than or equal to 1 and less than or equal to n, h is more than or equal to 1 and less than or equal to n, and the three of q, r and h are not equal to each other,
wherein,representing the regulation and control difference of the fan with the priority i at the t-th moment;
s33, generating an active difference sequence F participating in the regulation and control of the unit,
if m exists, the active difference sequence F participating in the regulation and control unit can be obtained when the following conditions are met,
in the formula, m is more than or equal to 1 and less than or equal to n, and k is more than or equal to 1 and less than or equal to n;
when the power is increased: the condition to be satisfied isAnd is
When the power is reduced: the condition to be satisfied isAnd is
In the formula,indicating the fine adjustment amount of the unit i.
5. The wind farm active power optimization control method according to claim 4, characterized in that when the wind farm active power optimization control method is usedThe smaller the size, the more preferred the regulation.
6. The wind farm active power optimization control method according to claim 4, wherein the step S3 further comprises: set up and adjust the blind spot unit, specifically do:
if the regulation balance of the unit i meets the following conditions, the power balance of the unit is in a regulation dead zone, namely the unit does not participate in regulation;
in the formula,indicating the fine adjustment amount of the unit i.
7. The wind farm active power optimization control method according to any one of claims 1 to 6, wherein the step S4 specifically comprises:
s41 power regulation difference of wind power plant group control wind turbine generatorThe maximum power variation of the wind power plant within 10 minutesMaximum power change rate of wind farm for 1 minuteThe following requirements of (1);
when the power is increased:
in the formula,is the sum of the power change amount of the first 9 minutes of the current regulation,is the sum of the terms in the sequence of power differences whose difference is greater than zero;
when the power is reduced:
at this time, the process of the present invention,is the sum of the terms in the sequence of power differences whose difference is less than zero;
s42, distributing the regulation and control quantity of each group control fan, specifically:
the regulation and control difference P of the fan with the number kt,kComprises the following steps:
regulating value P 'of fan with number k't,kComprises the following steps: p't,k＝Pa,t,k+Pt,kWherein k is 1,2, …, m;
the setting values of other group control fans are unchanged.
8. The wind farm active power optimization control method according to any one of claims 1 to 6, wherein in the step S5, the active power regulation value calculated in the step S4 is respectively sent to the remote terminal units of the wind turbines, and is written into the PLC of the wind turbines through MODBUS communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482234.4A CN108336768B (en) | 2017-12-29 | 2017-12-29 | Wind power plant active power optimization control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711482234.4A CN108336768B (en) | 2017-12-29 | 2017-12-29 | Wind power plant active power optimization control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108336768A true CN108336768A (en) | 2018-07-27 |
| CN108336768B CN108336768B (en) | 2021-07-02 |
Family
ID=62923872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711482234.4A Active CN108336768B (en) | 2017-12-29 | 2017-12-29 | Wind power plant active power optimization control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108336768B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672218A (en) * | 2018-12-25 | 2019-04-23 | 新疆金风科技股份有限公司 | The Poewr control method and device of Wind turbines |
| CN110529336A (en) * | 2019-09-06 | 2019-12-03 | 国电联合动力技术有限公司 | A kind of method and system that wind power generating set active power is quickly adjusted |
| CN111371124A (en) * | 2020-04-10 | 2020-07-03 | 湘电风能有限公司 | Wind power plant active power scheduling method for ensuring generated energy maximization |
| CN113113940A (en) * | 2021-05-06 | 2021-07-13 | 道莅智远科技(青岛)有限公司 | Active power control distribution algorithm for improving power generation amount during wind power plant power limit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510093A (en) * | 2011-12-19 | 2012-06-20 | 国网电力科学研究院 | Wind power field active power control method based on power forecasting information |
| CN107453411A (en) * | 2017-07-07 | 2017-12-08 | 成都阜特科技股份有限公司 | A kind of wind power station active power control method and its system |
| CN107482692A (en) * | 2017-08-14 | 2017-12-15 | 清华大学 | The method, apparatus and system of wind power plant real power control |
-
2017
- 2017-12-29 CN CN201711482234.4A patent/CN108336768B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510093A (en) * | 2011-12-19 | 2012-06-20 | 国网电力科学研究院 | Wind power field active power control method based on power forecasting information |
| CN107453411A (en) * | 2017-07-07 | 2017-12-08 | 成都阜特科技股份有限公司 | A kind of wind power station active power control method and its system |
| CN107482692A (en) * | 2017-08-14 | 2017-12-15 | 清华大学 | The method, apparatus and system of wind power plant real power control |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109672218A (en) * | 2018-12-25 | 2019-04-23 | 新疆金风科技股份有限公司 | The Poewr control method and device of Wind turbines |
| CN110529336A (en) * | 2019-09-06 | 2019-12-03 | 国电联合动力技术有限公司 | A kind of method and system that wind power generating set active power is quickly adjusted |
| CN110529336B (en) * | 2019-09-06 | 2020-07-10 | 国电联合动力技术有限公司 | Method and system for quickly adjusting active power of wind generating set |
| CN111371124A (en) * | 2020-04-10 | 2020-07-03 | 湘电风能有限公司 | Wind power plant active power scheduling method for ensuring generated energy maximization |
| CN111371124B (en) * | 2020-04-10 | 2023-09-01 | 湘电风能有限公司 | Wind farm active power scheduling method capable of guaranteeing maximization of generated energy |
| CN113113940A (en) * | 2021-05-06 | 2021-07-13 | 道莅智远科技(青岛)有限公司 | Active power control distribution algorithm for improving power generation amount during wind power plant power limit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108336768B (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108336768B (en) | Wind power plant active power optimization control method | |
| CN104134994B (en) | A kind of AGC of utilization carries out the out-of-limit Corrective control method of stable cross section trend | |
| CN108039737B (en) | Source-grid-load coordinated operation simulation system | |
| CN104467030B (en) | Power distribution method based on wind power and thermal power combined power generation | |
| CN102361330A (en) | Active power optimizing and distributing method for wind generator unit of wind power station | |
| CN105098979A (en) | Automatic electric power scheduling system and method | |
| CN104362648A (en) | Reactive phase modulation method for photovoltaic power station | |
| CN107769273B (en) | Steam turbine load distribution control method and system | |
| CN103345205B (en) | Data verification-based AGC load optimizing controlling method | |
| CN106602613B (en) | A kind of province ground two-level scheduler section control method for coordinating | |
| CN113224769B (en) | Multi-time-scale power distribution network voltage optimization method considering photovoltaic multi-state adjustment | |
| CN114336592B (en) | Wind power plant AGC control method based on model predictive control | |
| CN109301817B (en) | Multi-time scale source network load coordination scheduling method considering demand response | |
| WO2022054442A1 (en) | Power regulation method and power regulation device | |
| CN117013535B (en) | Water, wind, light and fire complementary capacity configuration method considering ecological scheduling requirements | |
| CN105048514B (en) | A kind of unit cooperative control method based on regulation performance consistency analysis | |
| CN106251074B (en) | A kind of method for building up and its calculation method of the advanced scheduling model of the power grid of collaboration | |
| CN107968442A (en) | A kind of power forecasting method in the new energy region based on Rolling optimal strategy | |
| CN116316884A (en) | Frequency modulation control method suitable for multi-source cooperation of high-proportion new energy power grid | |
| CN112260306B (en) | New energy power station equipartition group control power generation control method and device | |
| CN107302229B (en) | AGC control device and comprehensive power generation system | |
| KR20200076037A (en) | Energy management device between electric power system and district heating system, and energy management method using the same | |
| CN112821464B (en) | Renewable energy source and thermal power generation coupling system scheduling model through same grid point | |
| CN110717694B (en) | Energy storage configuration random decision method and device based on new energy consumption expected value | |
| CN105281376A (en) | Automatic power generating control method for wind farm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |