CN107294443A - A kind of double feed wind power generator control topological structure system and primary frequency modulation method - Google Patents
A kind of double feed wind power generator control topological structure system and primary frequency modulation method Download PDFInfo
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- CN107294443A CN107294443A CN201710530866.7A CN201710530866A CN107294443A CN 107294443 A CN107294443 A CN 107294443A CN 201710530866 A CN201710530866 A CN 201710530866A CN 107294443 A CN107294443 A CN 107294443A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008859 change Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000011217 control strategy Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 2
- 230000004044 response Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
-
- 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
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- H02J3/386—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/007—Control circuits for doubly fed generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
A kind of double feed wind power generator control topological structure system and primary frequency modulation method, the control topological structure system of wind-driven generator includes physical mechanism and the topological two parts of control, the physical characteristic of blower fan is analyzed first, its power output, which is mainly, has rotor speed and propeller pitch angle to be determined, therefore the power output of blower fan is changed by both modes, so as to realize primary frequency modulation；When wind speed is less than rated wind speed, rotor speed is changed by speed control；When wind speed is more than or equal to rated wind speed, by pitch control, so as to change propeller pitch angle, both of which can realize primary frequency modulation.Compared with prior art, the present invention can use no frequency modulation method according to different wind speed, it is to avoid the problems such as system for rotating frequent movement influences performance and the wind energy utilization of blower fan.
Description
Technical field
The present invention relates to Wind turbines primary frequency modulation technical field, specially a kind of double feed wind power generator control topology
Structural system and primary frequency modulation method.
Background technology
The primary frequency modulation of synchronous generator includes dynamic response process and stable response process, wherein dynamic response process
Described by prime mover and speed regulator dynamic model, can reflect that its mechanical output is regulated the speed, and it is anti-by static permanent speed regulation
Reflect mechanical output adjustment stable state amplitude and size is acted on to system frequency steady-state response.Usually avoid Wind turbines system for rotating
Frequent movement, reduction life-span, control strategy is aided in using rotating speed primary frequency modulation in rated wind speed following working condition；Specified
Control strategy is aided in using rotating speed primary frequency modulation during wind speed above working condition.
The content of the invention
It is an object of the invention to provide a kind of double feed wind power generator control topological structure system and primary frequency modulation side
Method, changes the output mechanical power of blower fan by pitch control and speed control, so that primary frequency modulation is realized, with solution
State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical scheme：A kind of double feed wind power generator control topology knot
Construction system, including physical mechanism and control topological structure two parts；The control topological structure includes wind energy conversion system control 12 and hair
Motor current transformer control 13；The wind energy conversion system control 12 includes pitch control 4 and speed control 5；The pitch control 4 is used for
The pitch angle 3 of controlled wind speed flowing, the shaft end at pitch angle 3 is plugged on gear-box 1, and the control end of gear-box 1 is electrically connected at
On speed control 5, the output end of gear-box 1 is connected with double-fed blower fan 2；One end of the double-fed blower fan 2 is electrically connected at change
On depressor 11, in other end connection rotor-side 6；The output end of the rotor-side 6 is connected with GSC9, and is connected with filter by GSC9
Ripple device 10, the output end of wave filter 10 is connected on transformer 11；The rotor-side 6 and GSC9 are controlled by generator converter control
System 13, generator converter control 13 includes RSC controller 7 and GSC controllers 8, and RSC controller 7 and GSC controllers 8 are distinguished
It is electrically connected with rotor-side 6 and GSC9.
It is preferred that, the input of the transformer 11 is connected on power network, and power network provides working power for whole system.
The present invention provides another technical scheme：A kind of double feed wind power generator control topological structure system is once
Frequency modulation method, comprises the following steps：
S1：The double-fed fan motor unit that wind power generating set is used, pneumatic power P is exported according to wind energy conversion systemvFor：
Wherein ρ is atmospheric density, and V is wind wheel face velocity, and S is impeller Plane of rotation area, Cp(λ, β) is wind energy utilization
Coefficient, power coefficient CpFor：
S2：By changing CpChange pneumatic power Pv；
S3：When wind speed is less than rated wind speed, control strategy is aided in using rotating speed primary frequency modulation, passes through speed control 5
Rotor speed λ is adjusted, so as to change the power output P of wind energy conversion systemV, realize primary frequency modulation；
S4：When wind speed is more than or equal to rated wind speed, control strategy is aided in using pitch primary frequency modulation, passes through pitch control
System 4 adjusts wind energy conversion system propeller pitch angle β, so as to change the power output P of wind energy conversion systemV, realize primary frequency modulation.
It is preferred that, the double feed wind power generator group carries out primary frequency modulation using pitch control.
It is preferred that, the double feed wind power generator group carries out primary frequency modulation using speed control.
Compared with prior art, the beneficial effects of the invention are as follows：This double feed wind power generator controls topological structure system
And primary frequency modulation method, when wind speed is less than rated wind speed, by rotational speed regulation, change the power output of wind energy conversion system, so that real
Existing primary frequency modulation；When wind speed is more than or equal to rated wind speed, by controlling propeller pitch angle to change the power output of wind energy conversion system, so that
Realize primary frequency modulation；It can use no frequency modulation method according to different wind speed, it is to avoid system for rotating frequent movement influences
The problems such as performance and wind energy utilization of blower fan.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
In figure：1 gear-box；2 double-fed blower fans；3 propeller pitch angles；4 pitch controls；5 speed controls；6 rotor-sides；7RSC is controlled
Device；8GSC controllers；9GSC；10 wave filters；11 transformers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention：A kind of double feed wind power generator controls topological structure system, including thing
Manage mechanism and control topological structure two parts；Topological structure is controlled to include wind energy conversion system control 12 and generator converter control 13；
Wind energy conversion system control 12 includes pitch control 4 and speed control 5；Pitch control 4 is used for the pitch angle 3 that controlled wind speed flows, slurry
The shaft end of elongation 3 is plugged on gear-box 1, and the control end of gear-box 1 is electrically connected on speed control 5, gear-box 1 it is defeated
Go out end and be connected with double-fed blower fan 2；One end of double-fed blower fan 2 is electrically connected on transformer 11, the input connection of transformer 11
On power network, power network provides working power for whole system；In the other end connection rotor-side 6 of double-fed blower fan 2, rotor-side 6
Output end is connected with GSC9, and is connected with wave filter 10 by GSC9, and the output end of wave filter 10 is connected on transformer 11；Turn
Sub- side 6 and GSC9 are controlled by generator converter control 13, and generator converter control 13 includes RSC controller 7 and GSC is controlled
Device 8, RSC controller 7 and GSC controllers 8 are electrically connected with rotor-side 6 and GSC9 respectively.
Another embodiment of the present invention：A kind of double feed wind power generator controls the primary frequency modulation side of topological structure system
Method, comprises the following steps：
The first step：The double-fed fan motor unit that wind power generating set is used, pneumatic power is exported according to wind energy conversion system
PvFor：
Wherein ρ is atmospheric density, and V is wind wheel face velocity, and S is impeller Plane of rotation area, Cp(λ, β) is wind energy utilization
Coefficient, power coefficient CpFor：
Second step：It is mainly what is determined by rotor speed and propeller pitch angle by the S1 power outputs for obtaining blower fan, by changing
CpChange pneumatic power Pv；
3rd step：When wind speed is less than rated wind speed, control strategy is aided in using rotating speed primary frequency modulation, passes through speed control
Device 5 adjusts rotor speed λ, so as to change the power output P of wind energy conversion systemV, realize and primary frequency modulation carried out using speed control strategy；
4th step：When wind speed is more than or equal to rated wind speed, control strategy is aided in using pitch primary frequency modulation, passes through oar
Wind energy conversion system propeller pitch angle β is adjusted away from control 4, so as to change the power output P of wind energy conversion systemV, realize and carried out using pitch control strategy
Primary frequency modulation.
In summary：This double feed wind power generator controls topological structure system and primary frequency modulation method, by analyzing wind
The physical characteristic of machine, its power output, which is mainly, has rotor speed and propeller pitch angle to be determined, when wind speed is less than rated wind speed, leads to
Rotational speed regulation is crossed, changes the power output of wind energy conversion system, so as to realize primary frequency modulation；When wind speed is more than or equal to rated wind speed,
By controlling propeller pitch angle 3 to change the power output of wind energy conversion system, so as to realize primary frequency modulation；It can be used according to different wind speed
No frequency modulation method, it is to avoid the problems such as system for rotating frequent movement influences performance and the wind energy utilization of blower fan.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. a kind of double feed wind power generator controls topological structure system, it is characterised in that including physical mechanism and control topology
Structure two parts；Topological structure is controlled to include wind energy conversion system control (12) and generator converter control (13)；Wind energy conversion system is controlled
(12) pitch control (4) and speed control (5) are included；Pitch control (4) is used for the pitch angle (3) that controlled wind speed flows, slurry
The shaft end of elongation (3) is plugged on gear-box (1), and the control end of gear-box (1) is electrically connected on speed control (5), tooth
The output end of roller box (1) is connected with double-fed blower fan (2)；One end of double-fed blower fan (2) is electrically connected on transformer (11), another
In end connection rotor-side (6)；The output end of rotor-side (6) is connected with GSC (9), and is connected with wave filter (10) by GSC (9),
The output end of wave filter (10) is connected on transformer (11).
2. a kind of double feed wind power generator control topological structure system according to claim 1, it is characterised in that described
Rotor-side (6) and GSC (9) are controlled by generator converter control (13), and generator converter control (13) includes RSC controller
(7) and GSC controllers (8), RSC controller (7) and GSC controllers (8) are electrically connected with rotor-side (6) and GSC (9) respectively.
3. a kind of double feed wind power generator according to claim 1 controls the primary frequency modulation method of topological structure system,
It is characterised in that it includes following steps：
1)：The double-fed fan motor unit that wind power generating set is used, pneumatic power P is exported according to wind energy conversion systemvFor：
<mrow>
<msub>
<mi>P</mi>
<mi>v</mi>
</msub>
<mo>=</mo>
<mfrac>
<mn>1</mn>
<mn>2</mn>
</mfrac>
<msup>
<mi>&rho;V</mi>
<mn>3</mn>
</msup>
<msub>
<mi>SC</mi>
<mi>p</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>&lambda;</mi>
<mo>,</mo>
<mi>&beta;</mi>
<mo>)</mo>
</mrow>
</mrow>
Wherein ρ is atmospheric density, and V is wind wheel face velocity, and S is impeller Plane of rotation area, Cp(λ, β) is power coefficient,
Power coefficient CpFor：
<mrow>
<msub>
<mi>C</mi>
<mi>p</mi>
</msub>
<mrow>
<mo>(</mo>
<mi>&lambda;</mi>
<mo>,</mo>
<mi>&beta;</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mrow>
<mo>(</mo>
<mn>0.44</mn>
<mo>-</mo>
<mn>0.0167</mn>
<mi>&beta;</mi>
<mo>)</mo>
</mrow>
<mi>s</mi>
<mi>i</mi>
<mi>n</mi>
<mo>&lsqb;</mo>
<mfrac>
<mrow>
<mi>&pi;</mi>
<mrow>
<mo>(</mo>
<mi>&lambda;</mi>
<mo>-</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
</mrow>
<mrow>
<mn>15</mn>
<mo>-</mo>
<mn>0.3</mn>
<mi>&beta;</mi>
</mrow>
</mfrac>
<mo>&rsqb;</mo>
<mo>-</mo>
<mn>0.00184</mn>
<mrow>
<mo>(</mo>
<mi>&lambda;</mi>
<mo>-</mo>
<mn>3</mn>
<mo>)</mo>
</mrow>
<mi>&beta;</mi>
<mo>.</mo>
</mrow>
2)：By changing CpChange pneumatic power Pv；
3)：When wind speed is less than rated wind speed, control strategy is aided in using rotating speed primary frequency modulation, adjusted by speed control (5)
Rotor speed λ is saved, so as to change the power output P of wind energy conversion systemV, realize primary frequency modulation；
4)：When wind speed is more than or equal to rated wind speed, control strategy is aided in using pitch primary frequency modulation, passes through pitch control
(4) wind energy conversion system propeller pitch angle β is adjusted, so as to change the power output P of wind energy conversion systemV, realize primary frequency modulation.
4. a kind of double feed wind power generator according to claim 3 controls the primary frequency modulation method of topological structure system,
Characterized in that, the double feed wind power generator group carries out primary frequency modulation using pitch control.
5. a kind of double feed wind power generator according to claim 3 controls the primary frequency modulation method of topological structure system,
Characterized in that, the double feed wind power generator group carries out primary frequency modulation using speed control.
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| CN201710530866.7A CN107294443A (en) | 2017-06-30 | 2017-06-30 | A kind of double feed wind power generator control topological structure system and primary frequency modulation method |
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| CN201710530866.7A CN107294443A (en) | 2017-06-30 | 2017-06-30 | A kind of double feed wind power generator control topological structure system and primary frequency modulation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212554A (en) * | 2019-06-17 | 2019-09-06 | 三峡大学 | A kind of wind-powered electricity generation frequency modulation control method improving peak load regulation network characteristic |
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|---|---|---|---|---|
| US20070216164A1 (en) * | 2006-03-17 | 2007-09-20 | Ingeteam, S.A. Of Pamplona | Variable speed wind turbine having an exciter machine and a power converter not connected to the grid |
| CN106227950A (en) * | 2016-07-26 | 2016-12-14 | 三峡大学 | A kind of Wind turbines primary frequency control system dynamic response modeling method based on pitch control |
| CN106227949A (en) * | 2016-07-26 | 2016-12-14 | 三峡大学 | A kind of Wind turbines primary frequency control system dynamic response modeling method controlled based on rotating speed |
-
2017
- 2017-06-30 CN CN201710530866.7A patent/CN107294443A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070216164A1 (en) * | 2006-03-17 | 2007-09-20 | Ingeteam, S.A. Of Pamplona | Variable speed wind turbine having an exciter machine and a power converter not connected to the grid |
| CN106227950A (en) * | 2016-07-26 | 2016-12-14 | 三峡大学 | A kind of Wind turbines primary frequency control system dynamic response modeling method based on pitch control |
| CN106227949A (en) * | 2016-07-26 | 2016-12-14 | 三峡大学 | A kind of Wind turbines primary frequency control system dynamic response modeling method controlled based on rotating speed |
Non-Patent Citations (1)
| Title |
|---|
| 付媛等: "变速风电机组的惯性与一次调频特性分析及综合控制", 《中国电机工程学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212554A (en) * | 2019-06-17 | 2019-09-06 | 三峡大学 | A kind of wind-powered electricity generation frequency modulation control method improving peak load regulation network characteristic |
| CN110212554B (en) * | 2019-06-17 | 2023-12-05 | 大唐向阳风电有限公司 | Wind power frequency modulation control method for improving peak shaving characteristic of power grid |
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Application publication date: 20171024 |