CN106972553A - A kind of wind-powered electricity generation field control method - Google Patents
A kind of wind-powered electricity generation field control method Download PDFInfo
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- CN106972553A CN106972553A CN201710228455.2A CN201710228455A CN106972553A CN 106972553 A CN106972553 A CN 106972553A CN 201710228455 A CN201710228455 A CN 201710228455A CN 106972553 A CN106972553 A CN 106972553A
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- 230000005611 electricity Effects 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
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Classifications
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- 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
- H02J3/50—Controlling the sharing of the out-of-phase component
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- H02J3/386—
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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
- 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
Abstract
The invention discloses a kind of wind-powered electricity generation field control method, comprise the following steps：S101, in grid entry point voltage range, selection wind power plant the corresponding voltage of total losses minimum value be used as target voltage Vm；S102, the grid entry point voltage stabilization of control wind power plant are in target voltage Vm；S103, based on target voltage Vm, optimize the voltage of each blower fan of wind power plant.In the present invention, the minimum grid-connected electric target voltage Vm of total losses is chosen in grid entry point voltage range, and the voltage of each blower fan in wind power plant is optimized based on target voltage Vm, so as to reduce wind power plant internal power consumption in the case where meeting pressure regulation requirement.
Description
Technical field
The invention belongs to field of power system control, it is related to a kind of wind-powered electricity generation field control method.
Background technology
At present, the Reactive-power control equipment in Large Scale Wind Farm Integration mainly includes the variable-speed wind-power machine of dispersed distribution in wind power plant
The shunt capacitor installed concentratedly in group, booster stations/reactor group, ULTC and dynamic passive compensation equipment SVG/
SVG etc..These Reactive-power control equipment not only have different control time constants in time scale, and in spatial granularity
Also there is different physical distribution positions.
Wind power plant idle work optimization is general with the minimum optimization aim of active loss, and trend equality constraint is considered in optimization process
Condition and the inequality constraints condition such as voltage, idle.Control that wind power plant is idle is general to be coordinated to complete by SVG and blower fan, and SVG rings
Answer speed fast, degree of regulation is high, but SVG regulations it is idle when have active loss.To reduce SVG active loss, SVG is kept
Reactive reserve, improve Wind turbines regulation performance, it is necessary to the idle carry out Collaborative Control of Wind turbines and SVG.
On the other hand, the corresponding total losses of different grid entry point voltage are different, and in the timing of grid entry point voltage one, wind power plant
The voltage of interior each blower fan is different, and corresponding wind power plant total losses are also different.
In view of this, it is special to propose the present invention.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art there is provided a kind of wind-powered electricity generation field control method,
The method discloses the grid-connected electric target voltage Vm that total losses minimum is chosen in grid entry point voltage range, and based on target electricity
The voltage of each blower fan in Vm optimization wind power plants is pressed, so as to reduce wind power plant internal power damage in the case where meeting pressure regulation requirement
Consumption.
In order to solve the above technical problems, the present invention is using the basic conception of technical scheme：
A kind of wind-powered electricity generation field control method, comprises the following steps：
S101, in grid entry point voltage range, select wind power plant the corresponding voltage of total losses minimum value be used as target electricity
Press Vm；
S102, the grid entry point voltage stabilization of control wind power plant are in target voltage Vm；
S103, based on target voltage Vm, optimize the voltage of each blower fan of wind power plant.
It is preferred that, the corresponding wind park of difference magnitude of voltage is total in step S101, including in examination grid entry point voltage range
Loss, and the corresponding magnitude of voltage of total losses minimum value is selected as target voltage Vm.
It is preferred that, in step S101, it is included in described grid entry point voltage range and chooses electrical voltage point V1, V2 ...
Vn, when testing grid entry point voltage respectively for V1, V2 ... Vn, the total losses of corresponding wind power plant, and choose in each total losses
The corresponding grid entry point voltage of minimum value is target voltage Vm.
It is preferred that, the grid entry point voltage stabilization of wind power plant is controlled respectively to V1, V2 ... Vn, to obtain each magnitude of voltage correspondence
Total losses.
It is preferred that, the grid entry point voltage stabilization of wind power plant is controlled respectively to V1, V2 ... Vn, to obtain each magnitude of voltage correspondence
Total losses, including select in grid entry point voltage V1, V2 ... Vn voltage Vk to be measured, and wind is obtained according to the voltage Vk to be measured
The demand reactive power Δ Q of electric field, and control SVG equipment to carry out Reactive-power control to wind first according to demand reactive power Δ Q
The reactive power of electric field reaches described demand reactive power Δ Q, then controls the blower fan of Wind turbines to replace SVG equipment and carries out
It is idle to exert oneself, or control blower fan additional issue reactive power, to replace idle the exerting oneself of part SVG equipment, constant wind power station voltage is extremely
Voltage Vk to be measured.
It is preferred that, the demand reactive power Δ Q of described acquisition wind power plant comprises the following steps：
S201, wind farm grid-connected current voltage V of acquisition0And real-time status data, operation information, the system of blower fan are electric
Press information；
S202 is according to formula：
Calculate the demand reactive power Δ Q of wind power plant；
Wherein, V0It is current voltage, VkIt is voltage to be measured, VSIt is system side voltage, X∑It is equivalent impedance, θ is generator rotor angle.
It is preferred that, Reactive-power control to the reactive power of wind power plant that described control SVG equipment is carried out reaches described need
Reactive power Δ Q is sought, including according to the Reactive-power control ability of SVG equipment, distributes SVG equipment Reactive-power control amounts；
It is preferred that, the Reactive-power control ability according to SVG equipment, distribution SVG equipment Reactive-power control amounts include：Judge
The reactive reserve Q of SVG equipmentCCWhether enough, if the determination result is YES, then distribute SVG equipment and carry out Reactive-power control according to Δ Q,
If judged result is no, distribution SVG equipment carries out Reactive-power control according to current full hair value is carried out；
It is preferred that, the reactive reserve Q of described SVG equipmentCCObtained by below equation：
QCC=QN-QSVG；Wherein, QSVGIt is the upper cycle sampling value of SVG equipment, QNFor the specified appearance of SVG equipment
Amount；
The reactive reserve Q of described SVG equipmentCCWhether Q is passed through enoughCCJudge with Δ Q magnitude relationship, if QCC≥ΔQ
Then judged result is yes, if QCCThen judged result is no to ＜ Δs Q.
It is preferred that, after the reactive power of wind power plant reaches described demand reactive power Δ Q, according to the blower fan of wind power plant
Reactive reserve distribution wind power plant blower fan Reactive-power control amount；
It is preferred that, the Reactive-power control amount bag of the blower fan of the reactive reserve distribution wind power plant of the blower fan according to wind power plant
Include：
The reactive reserve amount of the blower fan of wind power plant is obtained, judges whether the reactive reserve of the blower fan of electric field is enough, if judging
As a result it is yes, then according to setting order, distribution wind turbine carries out Reactive-power control for current full hair value, until allocated idle
Power sum is equal to demand reactive power Δ Q, if judged result is no, and distribution is that full hair value carries out idle adjust per Fans
Section；
It is preferred that, the described order that sets is the sort descending that is carried out according to the reactive reserve amount of each blower fan；
It is preferred that, whether the reactive reserve of the blower fan of described electric field is enough, passes through the total reactive reserve Q of Wind turbinesWT
Judge with Δ Q magnitude relationship, if QWT>=Δ Q, then judged result is yes, and otherwise, judged result is no；
Wherein, the total reactive reserve of described Wind turbines is obtained by below equation：
Wherein, n is the start number of units of wind-powered electricity generation airport apoplexy machine, PiFor the active power of the i-th Fans, QiFor the i-th Fans
Reactive power, wind power factor according to 0.95 consider.
It is preferred that, in step s 103, based on target voltage Vm, according to the unit of each node active power output and each blower fan electricity
The network structure of traffic coverage and wind power plant is pressed, using tidal current computing method, the optimal voltage value of each blower fan is determined；
It is preferred that, the optimal voltage value of described each blower fan is the voltage of corresponding each blower fan when wind power plant total losses are minimum
Value；
It is preferred that, the total losses of described wind power plant include active loss and reactive loss.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
In the present invention, the minimum grid-connected electric target voltage Vm of total losses is chosen in grid entry point voltage range, and is based on being somebody's turn to do
The voltage of each blower fan in target voltage Vm optimization wind power plants, so as to be reduced in the case where meeting pressure regulation requirement inside wind power plant
Power attenuation.
The embodiment to the present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Accompanying drawing is as the part of the present invention, and for providing further understanding of the invention, of the invention is schematic
Embodiment and its illustrate to be used to explain the present invention, but do not constitute inappropriate limitation of the present invention.Obviously, drawings in the following description
Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is wind power plant control method flow chart of the present invention；
Fig. 2 is the control logic figure of step S102 in Fig. 1.
It should be noted that these accompanying drawings and word description are not intended as the design model for limiting the present invention in any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
It is term " on ", " under ", "front", "rear", "left", "right", " perpendicular in the description of the invention, it is necessary to explanation
Directly ", the orientation or position relationship of the instruction such as " interior ", " outer " are based on orientation shown in the drawings or position relationship, merely to just
In the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Shown in Figure 1, the present invention provides a kind of wind-powered electricity generation field control method, comprises the following steps：
S101, in grid entry point voltage range, select wind power plant the corresponding voltage of total losses minimum value be used as target electricity
Press Vm；
S102, the grid entry point voltage stabilization of control wind power plant are in target voltage Vm；
S103, based on target voltage Vm, optimize the voltage of each blower fan of wind power plant.
It is preferred that, the corresponding wind park of difference magnitude of voltage is total in step S101, including in examination grid entry point voltage range
Loss, and the corresponding magnitude of voltage of total losses minimum value is selected as target voltage Vm.
It is preferred that, in step S101, it is included in described grid entry point voltage range and chooses electrical voltage point V1, V2 ...
Vn, when testing grid entry point voltage respectively for V1, V2 ... Vn, the total losses of corresponding wind power plant, and choose in each total losses
The corresponding grid entry point voltage of minimum value is target voltage Vm.
It is preferred that, the grid entry point voltage stabilization of wind power plant is controlled respectively to V1, V2 ... Vn, to obtain each magnitude of voltage correspondence
Total losses.
It is preferred that, the grid entry point voltage stabilization of wind power plant is controlled respectively to V1, V2 ... Vn, to obtain each magnitude of voltage correspondence
Total losses, including select in grid entry point voltage V1, V2 ... Vn voltage Vk to be measured, and wind is obtained according to the voltage Vk to be measured
The demand reactive power Δ Q of electric field, and control SVG equipment to carry out Reactive-power control to wind first according to demand reactive power Δ Q
The reactive power of electric field reaches described demand reactive power Δ Q, then controls the blower fan of Wind turbines to replace SVG equipment and carries out
It is idle to exert oneself, or control blower fan additional issue reactive power, to replace idle the exerting oneself of part SVG equipment, constant wind power station voltage is extremely
Voltage Vk to be measured.
It is preferred that, the demand reactive power Δ Q of described acquisition wind power plant comprises the following steps：
S201, wind farm grid-connected current voltage V of acquisition0And real-time status data, operation information, the system of blower fan are electric
Press information；
S202 is according to formula：
Calculate the demand reactive power Δ Q of wind power plant；
Wherein, V0It is current voltage, Vk is voltage to be measured, VSIt is system side voltage, X∑It is equivalent impedance, θ is generator rotor angle.
It is preferred that, Reactive-power control to the reactive power of wind power plant that described control SVG equipment is carried out reaches described need
Reactive power Δ Q is sought, including according to the Reactive-power control ability of SVG equipment, distributes SVG equipment Reactive-power control amounts；
It is preferred that, the Reactive-power control ability according to SVG equipment, distribution SVG equipment Reactive-power control amounts include：Judge
The reactive reserve Q of SVG equipmentCCWhether enough, if the determination result is YES, then distribute SVG equipment and carry out Reactive-power control according to Δ Q,
If judged result is no, distribution SVG equipment carries out Reactive-power control according to current full hair value is carried out；
It is preferred that, the reactive reserve Q of described SVG equipmentCCObtained by below equation：
QCC=QN-QSVG；Wherein, QSVGIt is the upper cycle sampling value of SVG equipment, QNFor the specified appearance of SVG equipment
Amount；
The reactive reserve Q of described SVG equipmentCCWhether Q is passed through enoughCCJudge with Δ Q magnitude relationship, if QCC≥ΔQ
Then judged result is yes, if QCCThen judged result is no to ＜ Δs Q.
It is preferred that, after the reactive power of wind power plant reaches described demand reactive power Δ Q, according to the blower fan of wind power plant
Reactive reserve distribution wind power plant blower fan Reactive-power control amount；
It is preferred that, the Reactive-power control amount bag of the blower fan of the reactive reserve distribution wind power plant of the blower fan according to wind power plant
Include：
The reactive reserve amount of the blower fan of wind power plant is obtained, judges whether the reactive reserve of the blower fan of electric field is enough, if judging
As a result it is yes, then according to setting order, distribution wind turbine carries out Reactive-power control for current full hair value, until allocated idle
Power sum is equal to demand reactive power Δ Q, if judged result is no, and distribution is that full hair value carries out idle adjust per Fans
Section；
It is preferred that, the described order that sets is the sort descending that is carried out according to the reactive reserve amount of each blower fan；
It is preferred that, whether the reactive reserve of the blower fan of described electric field is enough, passes through the total reactive reserve Q of Wind turbinesWT
Judge with Δ Q magnitude relationship, if QWT>=Δ Q, then judged result is yes, and otherwise, judged result is no；
Wherein, the total reactive reserve of described Wind turbines is obtained by below equation：
Wherein, n is the start number of units of wind-powered electricity generation airport apoplexy machine, PiFor the active power of the i-th Fans, QiFor the i-th Fans
Reactive power, wind power factor according to 0.95 consider.
It is preferred that, in step s 103, based on target voltage Vm, according to the unit of each node active power output and each blower fan electricity
The network structure of traffic coverage and wind power plant is pressed, using tidal current computing method, the optimal voltage value of each blower fan is determined；
It is preferred that, the optimal voltage value of described each blower fan is the voltage of corresponding each blower fan when wind power plant total losses are minimum
Value；
It is preferred that, the total losses of described wind power plant include active loss and reactive loss.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
In the present invention, the minimum grid-connected electric target voltage Vm of total losses is chosen in grid entry point voltage range, and is based on being somebody's turn to do
The voltage of each blower fan in target voltage Vm optimization wind power plants, so as to be reduced in the case where meeting pressure regulation requirement inside wind power plant
Power attenuation.
On the other hand, it is shown in Figure 2, in step S2 of the invention, according to target voltage Vm, get first demand without
Work(power Δ Q, then judges whether the reactive reserve of SVG equipment is enough, if the determination result is YES, then carries out nothing by SVG equipment
Work(is compensated, after the reactive power of wind power plant reaches demand reactive power Δ Q, then controls blower fan to replace the progress of SVG equipment idle
Compensation, keep SVG reactive reserve, and if judged result is no, reactive-load compensation is carried out by SVG equipment and blower fan jointly, treated
The reactive power of wind power plant reached after demand reactive power Δ Q, then replaced by blower fan do not seal SVG equipment carry out it is idle exert oneself, with
SVG reactive reserve is kept, finally, whether monitoring net piezoelectric voltage meets the requirements, if the determination result is YES, then control terminates, if
It is no to judge structure, then re-starts said process.
Specifically, in the present invention, described step S102 comprises the following steps：
S1, the demand reactive power Δ Q for obtaining wind power plant；
Wherein, described demand reactive power Δ Q is calculated by below equation：
Wherein, V0It is current voltage, Vm is target voltage, VSIt is system side voltage, X∑It is equivalent impedance, θ is generator rotor angle.
S2, the reactive reserve Q for calculating SVG equipmentCC；
Wherein, QCC=QN-QSVGWherein, QSVGIt is the upper cycle sampling value of SVG equipment, QNFor the volume of SVG equipment
Constant volume.
Q in S3, Δ Q and step S2 in step S1CCJudge whether the reactive reserve of SVG equipment is enough, if sentencing
Disconnected result is yes, then into step S4, otherwise into step S5；
Wherein, the reactive reserve Q of described SVG equipmentCCWhether Q is passed through enoughCCJudge with Δ Q magnitude relationship, if QCC
Then judged result is yes to >=Δ Q, if QCCThen judged result is no to ＜ Δs Q.
S4, control SVG equipment carry out reactive-load compensation according to Δ Q, and demand reactive power is reached in the reactive power of wind power plant
After Δ Q, into step S6；
S5, control SVG equipment reach demand reactive power Δ according to full hair value reactive-load compensation in the reactive power of wind power plant
After Q, into step S6；
S6, control Wind turbines blower fan replace SVG equipment carry out it is idle exert oneself, or control blower fan additional issue reactive power,
To replace idle the exerting oneself of part SVG equipment；
Whether S7, monitoring network voltage meet the requirements, if judged result is no, into step S1.
It is preferred that, it is in step s 6, further comprising the steps of：
S301, the blower fan of acquisition wind power plant reactive reserve, judge whether the reactive reserve of the blower fan of electric field is enough, if sentencing
Disconnected result is yes, then into step S302, if judged result is no, into step S303；
Whether the reactive reserve of the blower fan of described electric field is enough, passes through the total reactive reserve Q of Wind turbinesWTWith Δ Q's
Magnitude relationship judges, if QWT>=Δ Q, then judged result is yes, and otherwise, judged result is no；
Wherein, the total reactive reserve of described Wind turbines is obtained by below equation：
Wherein, n is the start number of units of wind-powered electricity generation airport apoplexy machine, PiFor the active power of the i-th Fans, QiFor the i-th Fans
Reactive power, wind power factor according to 0.95 consider.
S302, according to setting order, distribution wind turbine carries out Reactive-power control for current full hair value, until allocated nothing
Work(power sum is equal to demand reactive power Δ Q；
It is preferred that, the described order that sets is the sort descending that is carried out according to the reactive reserve amount of each blower fan.
In such scheme, the described order that sets as the sort descending that is carried out according to the reactive reserve amount of each blower fan, from
And balanced the idle of each blower fan is exerted oneself.
S303, distribution are that full hair value carries out Reactive-power control per Fans.
In the present invention, with reference to the blower fan and SVG different adjustment amplitude and governing speed of Wind turbines, first carried out by SVG
Regulation, then progressively use the reactive power of Wind turbines to replace SVG reactive power, to reduce SVG active loss, and keep
SVG dynamic reactive deposit, so as to reduce wind power plant internal power consumption in the case where meeting pressure regulation requirement.
Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompting make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent variations and modification that above example is made, in the range of still falling within the present invention program.
Claims (10)
1. a kind of wind-powered electricity generation field control method, it is characterised in that comprise the following steps：
S101, in grid entry point voltage range, selection wind power plant the corresponding voltage of total losses minimum value be used as target voltage Vm；
S102, the grid entry point voltage stabilization of control wind power plant are in target voltage Vm；
S103, based on target voltage Vm, optimize the voltage of each blower fan of wind power plant.
2. a kind of wind-powered electricity generation field control method according to claim 1, it is characterised in that in step S101, including examination
The corresponding wind park total losses of difference magnitude of voltage in grid entry point voltage range, and select the corresponding magnitude of voltage of total losses minimum value to make
For target voltage Vm.
3. a kind of wind-powered electricity generation field control method according to claim 1 or 2, it is characterised in that in step S101, be included in
Electrical voltage point V1, V2 ... Vn is chosen in described grid entry point voltage range, it is V1, V2 ... Vn that grid entry point voltage is tested respectively
When, the total losses of corresponding wind power plant, and the corresponding grid entry point voltage of the minimum value in each total losses is chosen for target voltage Vm.
4. a kind of wind-powered electricity generation field control method according to Claims 2 or 3, it is characterised in that control respectively wind power plant and
Site voltage stabilization is to V1, V2 ... Vn, to obtain the corresponding total losses of each magnitude of voltage.
5. a kind of wind-powered electricity generation field control method according to claim 3 or 4, it is characterised in that control respectively wind power plant and
Site voltage stabilization is to V1, V2 ... Vn, to obtain the corresponding total losses of each magnitude of voltage, including by grid entry point voltage V1,
Voltage V to be measured is selected in V2 ... Vnk, and according to the voltage V to be measuredkThe demand reactive power Δ Q of acquisition wind power plant, and according to
Demand reactive power Δ Q controls SVG equipment progress Reactive-power control to the reactive power of wind power plant to reach described demand first
Reactive power Δ Q, then controls the blower fan replacement SVG equipment progress of Wind turbines is idle to exert oneself, or control blower fan additional issue is idle
Power, to replace idle the exerting oneself of part SVG equipment, constant wind power station voltage to voltage Vk to be measured.
6. a kind of wind-powered electricity generation field control method according to claim 5, it is characterised in that the demand of described acquisition wind power plant
Reactive power Δ Q comprises the following steps：
S201, wind farm grid-connected current voltage V of acquisition0And the real-time status data of blower fan, operation information, system voltage letter
Breath；
S202 is according to formula：
Calculate the demand reactive power Δ Q of wind power plant；
Wherein, V0It is current voltage, Vk is voltage to be measured, VSIt is system side voltage, X∑It is equivalent impedance, θ is generator rotor angle.
7. a kind of wind-powered electricity generation field control method according to claim 5 or 6, it is characterised in that described control SVG equipment is entered
Capable Reactive-power control to the reactive power of wind power plant reaches described demand reactive power Δ Q, including according to the idle of SVG equipment
Regulating power, distributes SVG equipment Reactive-power control amounts；
It is preferred that, the Reactive-power control ability according to SVG equipment, distribution SVG equipment Reactive-power control amounts include：Judge SVG
The reactive reserve Q of equipmentCCWhether enough, if the determination result is YES, then distribute SVG equipment and carry out Reactive-power control according to Δ Q, if sentencing
Disconnected result is no, then distributes SVG equipment according to current full hair value is carried out and carry out Reactive-power control.
8. a kind of wind-powered electricity generation field control method according to claim 7, it is characterised in that the idle storage of described SVG equipment
Standby QCCObtained by below equation：
QCC=QN-QSVG；Wherein, QSVGIt is the upper cycle sampling value of SVG equipment, QNFor the rated capacity of SVG equipment；
The reactive reserve Q of described SVG equipmentCCWhether Q is passed through enoughCCJudge with Δ Q magnitude relationship, if QCC>=Δ Q then sentences
Disconnected result is yes, if QCCThen judged result is no to ＜ Δs Q.
9. according to a kind of any described wind-powered electricity generation field control methods of claim 5-8, it is characterised in that in the idle work(of wind power plant
Rate is reached after described demand reactive power Δ Q, and the nothing of the blower fan of wind power plant is distributed according to the reactive reserve of the blower fan of wind power plant
Work(regulated quantity；
It is preferred that, the Reactive-power control amount of the blower fan of the reactive reserve distribution wind power plant of the blower fan according to wind power plant includes：
The reactive reserve amount of the blower fan of wind power plant is obtained, judges whether the reactive reserve of the blower fan of electric field is enough, if judged result
It is yes, then according to setting order, distribution wind turbine carries out Reactive-power control for current full hair value, until allocated reactive power
Sum is equal to demand reactive power Δ Q, if judged result is no, and distribution is that full hair value carries out Reactive-power control per Fans；
It is preferred that, the described order that sets is the sort descending that is carried out according to the reactive reserve amount of each blower fan；
It is preferred that, whether the reactive reserve of the blower fan of described electric field is enough, passes through the total reactive reserve Q of Wind turbinesWTWith Δ Q
Magnitude relationship judge, if QWT>=Δ Q, then judged result is yes, and otherwise, judged result is no；
Wherein, the total reactive reserve of described Wind turbines is obtained by below equation：
Wherein, n is the start number of units of wind-powered electricity generation airport apoplexy machine, PiFor the active power of the i-th Fans, QiFor the nothing of the i-th Fans
Work(power, wind power factor considers according to 0.95.
10. according to a kind of any described wind-powered electricity generation field control methods of claim 1-9, it is characterised in that in step s 103, base
In target voltage Vm, according to each node active power output and the unit voltage traffic coverage and the network structure of wind power plant of each blower fan,
Using tidal current computing method, the optimal voltage value of each blower fan is determined；
It is preferred that, the optimal voltage value of described each blower fan is the magnitude of voltage of corresponding each blower fan when wind power plant total losses are minimum；
It is preferred that, the total losses of described wind power plant include active loss and reactive loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710228455.2A CN106972553B (en) | 2017-04-10 | 2017-04-10 | A kind of wind-powered electricity generation field control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193686A (en) * | 2018-09-03 | 2019-01-11 | 深圳供电规划设计院有限公司 | A kind of control method and system, equipment, storage medium of reactive apparatus |
| CN111668884A (en) * | 2020-06-30 | 2020-09-15 | 国电联合动力技术有限公司 | Wind power plant voltage regulation iterative learning control method and device |
| CN112583052A (en) * | 2020-09-30 | 2021-03-30 | 润电能源科学技术有限公司 | Voltage adjusting method and related equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521388A (en) * | 2008-02-28 | 2009-09-02 | 通用电气公司 | Windfarm collector system loss optimization |
| CN101719676A (en) * | 2008-10-09 | 2010-06-02 | 通用电气公司 | Voltage control at windfarms |
| CN102354992A (en) * | 2011-09-30 | 2012-02-15 | 北京四方继保自动化股份有限公司 | Reactive-power control method of wind power field |
| CN103151795A (en) * | 2013-01-25 | 2013-06-12 | 沈阳工业大学 | Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system |
| CN103346577A (en) * | 2013-07-11 | 2013-10-09 | 国家电网公司 | Wind power plant AVC reactive power control system and method for reducing power loss of wind power plant |
| CN106487024A (en) * | 2016-11-18 | 2017-03-08 | 华北电力科学研究院有限责任公司 | The idle method of replacing of Reactive Compensation in Wind Farm device and Wind turbines and device |
-
2017
- 2017-04-10 CN CN201710228455.2A patent/CN106972553B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101521388A (en) * | 2008-02-28 | 2009-09-02 | 通用电气公司 | Windfarm collector system loss optimization |
| CN101719676A (en) * | 2008-10-09 | 2010-06-02 | 通用电气公司 | Voltage control at windfarms |
| CN102354992A (en) * | 2011-09-30 | 2012-02-15 | 北京四方继保自动化股份有限公司 | Reactive-power control method of wind power field |
| CN103151795A (en) * | 2013-01-25 | 2013-06-12 | 沈阳工业大学 | Scattered-type wind power plant reactive power optimization control method capable of reducing fan losses and system |
| CN103346577A (en) * | 2013-07-11 | 2013-10-09 | 国家电网公司 | Wind power plant AVC reactive power control system and method for reducing power loss of wind power plant |
| CN106487024A (en) * | 2016-11-18 | 2017-03-08 | 华北电力科学研究院有限责任公司 | The idle method of replacing of Reactive Compensation in Wind Farm device and Wind turbines and device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109193686A (en) * | 2018-09-03 | 2019-01-11 | 深圳供电规划设计院有限公司 | A kind of control method and system, equipment, storage medium of reactive apparatus |
| CN109193686B (en) * | 2018-09-03 | 2020-06-30 | 深圳供电规划设计院有限公司 | Control method and system of reactive equipment, equipment and storage medium |
| CN111668884A (en) * | 2020-06-30 | 2020-09-15 | 国电联合动力技术有限公司 | Wind power plant voltage regulation iterative learning control method and device |
| CN112583052A (en) * | 2020-09-30 | 2021-03-30 | 润电能源科学技术有限公司 | Voltage adjusting method and related equipment |
| CN112583052B (en) * | 2020-09-30 | 2023-08-08 | 润电能源科学技术有限公司 | Voltage adjustment method and related equipment |
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