CN107171368A - The wind-power electricity generation primary frequency function implementation method controlled based on wind power - Google Patents
The wind-power electricity generation primary frequency function implementation method controlled based on wind power Download PDFInfo
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- CN107171368A CN107171368A CN201710592221.6A CN201710592221A CN107171368A CN 107171368 A CN107171368 A CN 107171368A CN 201710592221 A CN201710592221 A CN 201710592221A CN 107171368 A CN107171368 A CN 107171368A
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- 230000005611 electricity Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 11
- 238000011217 control strategy Methods 0.000 claims abstract description 9
- 238000007665 sagging Methods 0.000 claims abstract description 7
- 239000012141 concentrate Substances 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009466 transformation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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
- H02J3/48—Controlling the sharing of the in-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
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- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention discloses a kind of wind-power electricity generation primary frequency function implementation method controlled based on wind power, it is characterised in that including：It is being incorporated into the power networks in the active power controller device for the wind power plant for concentrating access, the sagging frequency regulation control strategy of increase wind power；And monitoring in real time is incorporated into the power networks and concentrates the wind-powered electricity generation field frequencies range f of access, wind power after primary frequency modulation action is calculated according to control strategy after mains frequency f exceedes the primary frequency modulation dead band of setting and gives target value P1, new power is reassigned to each wind power generating set by active power controller device to target value P1, wind power generating set is each exerted oneself according to instruction regulation, realizes the overall primary frequency function of wind power plant.The present invention possesses Primary frequency control ability, the means directly controlled by wind power without requiring the separate unit Wind turbines in wind power plant so that whole wind power plant possesses similar synchronous generator and the primary frequency modulation effect produced is acted on by speed regulator.
Description
Technical field
Technical field of wind power of the present invention, more particularly to a kind of technical method for realizing wind-power electricity generation primary frequency function.
Background technology
At present, domestic Wind turbines do not possess primary frequency function substantially, are sent out for the wind-force that centralization is generated electricity by way of merging two or more grid systems
Electric field is also without Primary frequency control ability.From the point of view of current domestic disclosed technical data, the reality of wind-power electricity generation primary frequency function
Existing method has two kinds substantially：A kind of is the technological transformation by Wind turbines and its control system so that Wind turbines possess one
Secondary frequency modulation function.Transformation object focuses on Wind turbines, realizes that the controlled quentity controlled variable of primary frequency modulation is also mainly each wind in wind power plant
The active power of group of motors.Scientific research, experimental stage are still in the control technology, practical application is had not been put to more.Another side
Method is by setting up virtual synchronous machine in wind power plant and energy storage device realizes wind power plant primary frequency function.Two methods, its
Technical difficulty and required expense are all very high.
The content of the invention
It is an object of the invention to provide a kind of wind-power electricity generation primary frequency function realization controlled based on wind power
Method, to solve above-mentioned technical problem.
To achieve these goals, the present invention is adopted the following technical scheme that：
The wind-power electricity generation primary frequency function implementation method controlled based on wind power, it is characterised in that including：Simultaneously
Network operation is concentrated in the active power controller device of the wind power plant of access, the sagging frequency regulation control plan of increase wind power
Slightly；And monitoring in real time is incorporated into the power networks and concentrates the wind-powered electricity generation field frequencies range f of access, when mains frequency f exceedes the primary frequency modulation dead band of setting
Wind power after primary frequency modulation action is calculated according to control strategy afterwards and gives target value P1, active power controller device will be new
Power reassigns to each wind power generating set to target value P1, and wind power generating set is each exerted oneself according to instruction regulation, real
The overall primary frequency function of existing wind power plant.
Further, wind power is specially to target value P1 determination method after primary frequency modulation action：
(1) 50+DB is worked as-≤f≤50+DB+When, P1=PC；
(2) f is worked asmin≤ f ＜ 50+DB-When,
(3) 50+DB is worked as+＜ f≤fmaxWhen,
(4) as f ＜ fminWhen,
(5) as f ＞ fmaxWhen,
In formula：F-mains frequency；fmax- primary frequency modulation frequency maxima；fmin- primary frequency modulation frequency minima；
DB+- primary frequency modulation forward direction dead band；DB-- primary frequency modulation negative sense dead band；Ep-permanent speed regulation；
P1Wind power desired value after the action of-primary frequency modulation；PC--- work(is sent out in fact before AGC setting values or primary frequency modulation
Rate；PE- wind power plant rated power.
Further, active power controller device is AGC adjusting meanss or energy management platform.
Relative to prior art, the invention has the advantages that：The present invention is for the Wind turbines that are incorporated into the power networks at present
Do not possess the situation of primary frequency function substantially with wind power plant, by the way that other have in wind power plant AGC control devices or wind power plant
On work(Power Control platform, the sagging frequency regulation control strategy of increase wind power, (droop control frequency modulation effect is equal to
Synchronous generator relies on the primary frequency modulation that speed regulator is acted on, i.e., proportional droop control), realize the primary frequency modulation work(of wind power plant
Energy.The present invention does not require that the Wind turbines in wind power plant possess Primary frequency control ability, without the Wind turbines to having put into operation
Undergo technological transformation, without other increase control device, you can realize the primary frequency function of whole wind power plant.With for wind
Group of motors undergoes technological transformation one by one, realizes that Wind turbines and the method for wind power plant primary frequency function are compared, workload, technology
Difficulty, required expense are substantially reduced.Although primary frequency modulation regulating power, regulation quality are possible to, not as good as the latter, pass through phase
Technological improvement is closed, the wind power plant primary frequency function that the inventive method is realized can still meet power network for primary frequency modulation performance
Basic need.
The present invention possesses Primary frequency control ability without requiring the separate unit Wind turbines in wind power plant, directly passes through wind power plant work(
The means of rate control so that whole wind power plant possesses similar synchronous generator and the primary frequency modulation effect produced is acted on by speed regulator
Really.
Brief description of the drawings
Fig. 1 is the sagging frequency regulation control figure of wind-powered electricity generation primary frequency modulation；
Fig. 2 is the typical wind power regulation schematic diagram of control mode one；
Fig. 3 is the typical wind power regulation schematic diagram of control mode two；
Fig. 4 is that wind power plant primary frequency modulation adjusts process schematic.
Embodiment
At present, it is incorporated into the power networks and concentrates the wind power plant of access, AGC adjusting meanss or similar active power is equipped with substantially
Control device, possesses the ability that AGC regulations are carried out according to scheduling active power command value.
In such active power controller device, control strategy is adjusted by the sagging frequency for increasing wind power, (under
Control frequency modulation effect of hanging down is equal to the primary frequency modulation that synchronous generator relies on speed regulator to act on, i.e., proportional droop control), it is real
The primary frequency function of existing wind power plant.
A kind of wind-power electricity generation primary frequency function implementation method controlled based on wind power of the present invention, including：Simultaneously
Network operation is concentrated in the active power controller device of the wind power plant of access, the sagging frequency regulation control plan of increase wind power
Slightly；And monitoring in real time is incorporated into the power networks and concentrates the wind-powered electricity generation field frequencies range f of access, when mains frequency f exceedes the primary frequency modulation dead band of setting
Wind power after primary frequency modulation action is calculated according to control strategy afterwards and gives target value P1, active power controller device will be new
Power target value reassigns to each wind power generating set, and wind power generating set is each exerted oneself according to instruction regulation, realizes wind-powered electricity generation
The overall primary frequency function in field.
Determination of the wind power to target value P1 after primary frequency modulation action：
(1) 50+DB is worked as-≤f≤50+DB+, wind power plant AGC or real power control rating of set desired value P1=PC；
(2) f is worked asmin≤ f ＜ 50+DB-, wind power plant AGC or real power control rating of set desired value
(3) 50+DB is worked as+＜ f≤fmax, wind power plant AGC or real power control rating of set desired value
(4) as f ＜ fmin, wind power plant AGC or real power control rating of set desired value
(5) as f ＞ fmax, wind power plant AGC or real power control rating of set desired value
In formula：F-mains frequency；fmax- primary frequency modulation frequency maxima；fmin- primary frequency modulation frequency minima；
DB+- primary frequency modulation forward direction dead band；DB-- primary frequency modulation negative sense dead band；Ep-permanent speed regulation；
P1Wind power desired value after the action of-primary frequency modulation；PC--- work(is sent out in fact before AGC setting values or primary frequency modulation
Rate；PE- wind power plant rated power.(above-mentioned fmax、fmin、DB+、DB-, the primary frequency modulation related parameter values such as ep are according to location
Electric administrative department requires setting).
Wind power plant primary frequency modulation frequency droop control strategy is increased to station AGC control systems or energy pipe by the present invention
In platform (or other real power control systems), according to control strategy meter after mains frequency exceedes the primary frequency modulation dead band of setting
Calculate wind power after primary frequency modulation action and give target value P1, energy management platform (or other real power control systems) will be new
Power target value reassigns to each wind power generating set, and wind power generating set is each exerted oneself according to instruction regulation, realizes wind-powered electricity generation
The overall primary frequency function in field.Fig. 4 be input step change frequency disturbance signal, wind power target power P1 and
Wind power adjusts schematic diagram.
Claims (3)
1. the wind-power electricity generation primary frequency function implementation method controlled based on wind power, it is characterised in that including：Grid-connected
Operation is concentrated in the active power controller device of the wind power plant of access, the sagging frequency regulation control plan of increase wind power
Slightly；And monitoring in real time is incorporated into the power networks and concentrates the wind farm frequency f of access, when mains frequency f exceedes the primary frequency modulation of setting
Wind power after primary frequency modulation action is calculated according to control strategy behind dead band and gives target value P1, active power controller device will
New power reassigns to each wind power generating set to target value P1, and wind power generating set each goes out according to instruction regulation
Power, realizes the overall primary frequency function of wind power plant.
2. the wind-power electricity generation primary frequency function implementation method according to claim 1 controlled based on wind power, its
It is characterised by, wind power is specially to target value P1 determination method after primary frequency modulation action：
(1) 50+DB is worked as-≤f≤50+DB+When, P1=PC；
(2) f is worked asmin≤ f ＜ 50+DB-When,
(3) 50+DB is worked as+＜ f≤fmaxWhen,
(4) as f ＜ fminWhen,
(5) as f ＞ fmaxWhen,
In formula：F-mains frequency；fmax- primary frequency modulation frequency maxima；fmin- primary frequency modulation frequency minima；
DB+- primary frequency modulation forward direction dead band；DB-- primary frequency modulation negative sense dead band；Ep-permanent speed regulation；
P1Wind power desired value after the action of-primary frequency modulation；PC--- power is sent out in fact before AGC setting values or primary frequency modulation；
PE- wind power plant rated power.
3. the wind-power electricity generation primary frequency function implementation method according to claim 1 controlled based on wind power, its
It is characterised by, active power controller device is AGC adjusting meanss or energy management platform.
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| CN201710592221.6A CN107171368B (en) | 2017-07-19 | 2017-07-19 | Wind power generation primary frequency modulation function implementation method based on wind power plant power control |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107749644A (en) * | 2017-11-29 | 2018-03-02 | 国电联合动力技术有限公司 | A kind of wind power plant participates in the intelligent control method and its control system of primary frequency modulation |
| CN107800137A (en) * | 2017-11-10 | 2018-03-13 | 国网江苏省电力公司经济技术研究院 | A kind of UPFC electromechanical transient simulation methods based on MMC |
| CN108306312A (en) * | 2018-03-01 | 2018-07-20 | 科诺伟业风能设备（北京）有限公司 | A kind of wind power plant primary frequency modulation control method |
| CN108377004A (en) * | 2018-04-23 | 2018-08-07 | 华北电力科学研究院有限责任公司 | Frequency modulation method and system are coordinated in wind storage based on virtual synchronous machine |
| CN108518307A (en) * | 2018-04-03 | 2018-09-11 | 北京金风科创风电设备有限公司 | Power control method, control device, controller and system of wind generating set |
| CN108964086A (en) * | 2018-07-20 | 2018-12-07 | 国家电网有限公司 | A kind of power grid frequency modulation control method and device based on virtual synchronous machine |
| CN109217383A (en) * | 2018-09-30 | 2019-01-15 | 国电联合动力技术有限公司 | A kind of wisdom wind power plant parameter adaptive fast frequency hopping control method and system |
| CN112636374A (en) * | 2021-03-09 | 2021-04-09 | 沈阳微控新能源技术有限公司 | Primary frequency modulation and virtual inertia response control method and device for wind power station |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800137A (en) * | 2017-11-10 | 2018-03-13 | 国网江苏省电力公司经济技术研究院 | A kind of UPFC electromechanical transient simulation methods based on MMC |
| CN107800137B (en) * | 2017-11-10 | 2019-11-08 | 国网江苏省电力公司经济技术研究院 | A kind of UPFC electromechanical transient simulation method based on MMC |
| CN107749644A (en) * | 2017-11-29 | 2018-03-02 | 国电联合动力技术有限公司 | A kind of wind power plant participates in the intelligent control method and its control system of primary frequency modulation |
| CN108306312A (en) * | 2018-03-01 | 2018-07-20 | 科诺伟业风能设备（北京）有限公司 | A kind of wind power plant primary frequency modulation control method |
| CN108306312B (en) * | 2018-03-01 | 2020-11-27 | 科诺伟业风能设备（北京）有限公司 | Primary frequency modulation control method for wind power plant |
| CN108518307A (en) * | 2018-04-03 | 2018-09-11 | 北京金风科创风电设备有限公司 | Power control method, control device, controller and system of wind generating set |
| CN108377004A (en) * | 2018-04-23 | 2018-08-07 | 华北电力科学研究院有限责任公司 | Frequency modulation method and system are coordinated in wind storage based on virtual synchronous machine |
| CN108377004B (en) * | 2018-04-23 | 2024-03-15 | 华北电力科学研究院有限责任公司 | Wind-storage coordination frequency modulation method and system based on virtual synchronous machine |
| CN108964086A (en) * | 2018-07-20 | 2018-12-07 | 国家电网有限公司 | A kind of power grid frequency modulation control method and device based on virtual synchronous machine |
| CN109217383A (en) * | 2018-09-30 | 2019-01-15 | 国电联合动力技术有限公司 | A kind of wisdom wind power plant parameter adaptive fast frequency hopping control method and system |
| CN112636374A (en) * | 2021-03-09 | 2021-04-09 | 沈阳微控新能源技术有限公司 | Primary frequency modulation and virtual inertia response control method and device for wind power station |
| CN112636374B (en) * | 2021-03-09 | 2021-05-14 | 沈阳微控新能源技术有限公司 | Primary frequency modulation and virtual inertia response control method and device for wind power station |
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