CN104373294B - Full-power control and operation method applied to wind power converter - Google Patents
Full-power control and operation method applied to wind power converter Download PDFInfo
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- CN104373294B CN104373294B CN201410699979.6A CN201410699979A CN104373294B CN 104373294 B CN104373294 B CN 104373294B CN 201410699979 A CN201410699979 A CN 201410699979A CN 104373294 B CN104373294 B CN 104373294B
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- power
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- rotating speed
- blower fan
- transducer
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Control Of Eletrric Generators (AREA)
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Abstract
The invention discloses a full-power control and operation method applied to a wind power converter. The method is a control mode from startup of rotating speed to pitching-in of the rotating speed to pitching-out of the rotating speed till a brake protection shutdown with the rotating speed of a draught fan as a standard; with power to rotating speed as the basis, a full-power control curve is designed, and the wind power converter controls the rotating speed of the draught fan according to the full-power control curve. According to the full-power control and operation method applied to the wind power converter, information such as voltage, current and voltage frequency output by a wind driven generator is utilized to obtain output power and rotating speed information of the generator through interpretation by the wind power converter, and the wind driven generator is controlled according to the full-power control curve of the wind power converter; by means of the method, the draught fan can be effectively and quickly controlled, and operating points (the pitching-in point, the pitching-out point, the protection point, the shutdown point and the like) in the curve are adjusted so as to adapt to characteristics of different generators and characteristics of different converters.
Description
Technical field
The present invention relates to wind-force transducer control field, specifically a kind of total power control for being applied to wind-force transducer
System and its operational approach.
Background technology
The electric power converter of the renewable sources of energy is generally used in running, the electric power converter can all follow Power Control bent
Line carries out output power, by taking solar energy electric power converter as an example：Solar panels can be different according to intensity of sunshine, and output is not
The DC voltage of ad eundem, solar energy electric power converter can export the voltage etc. that is consistent according to different grades of DC voltage
The power of level；Identical, in blower fan electric power converter, wind energy conversion system can reflect different grades of alternating voltage according to different wind regime
And electric voltage frequency, wind-force transducer also can export the power of the electric pressure of being consistent according to different grades of alternating voltage；With
The power control profile of upper proposed solar energy use and wind-force transducer, is mostly to follow (MPPT) control using peak power
Method, can retrieve in numerous patents, but the height based on wind-resources is uncertain, and peak power is followed control methods and do not applied to
On wind generator system.
From prior art, the wind-force transducer peak power that would generally arrange in pairs or groups follows control, but due to wind-resources it is high
The unstability of degree, wind speed is per second all to be changed, and the substantial amounts of air speed data of specification is needed if following using peak power, is being turned
Hardware and software instruction cycle in parallel operation would generally not catch up with the speed of wind-resources change, therefore peak power is followed and uncomfortable
For in wind generator system.
The content of the invention
In order to solve above-mentioned technical problem present in prior art, the present invention provides one kind and is applied to wind-force transducer
Total power control and its operational approach, it reaches rotation speed of fan and wind generator system output work using total power control method
The control of rate.Concrete technical scheme is as follows：
It is a kind of be applied to wind-force transducer total power control and its operational approach, be on the basis of rotation speed of fan, by
Start to start rotating speed, into incision rotating speed to control mode of the rotating speed until brake protection is shut down is cut out, with power to turning
Based on speed, a total power controlling curve is designed, wind-force transducer then carries out rotation speed of fan control according to the total power curve
System.
Further, blower fan can reflect different electric pressure and electric voltage frequency in different rotating speeds, its electric pressure with
Electric voltage frequency is all proportional to the rotating speed of blower fan, therefore learns rotation speed of fan by detecting electric voltage frequency, and judges defeated by electric pressure
Go out watt level.
Further, Eolic converter output size, described total power control method bag are controlled by rotation speed of fan
Include following steps：The current voltage level and electric voltage frequency of detecting blower fan；Whether rotating speed is judged less than incision rotating speed, if the rotating speed
Less than incision rotating speed, judge that power, whether less than startup power, if power is again smaller than startup power, is entered and opens machine scope, turn
Parallel operation export lower-wattage to electrical network, if conversely, power be more than startup power, total power controlling curve be not inconsistent electromotor spy
Property, reset curve and operating point；If rotating speed is more than incision rotating speed, whether rotating speed is judged less than rotating speed is cut out, if this turn
Speed judges whether power is less than operable power less than cutting out rotating speed, if power is again smaller than operable power, into operable
Scope, transducer exports higher-wattage to electrical network, anti-, if power is more than operable power, total power controlling curve is not inconsistent
Generator property, resets curve and operating point；Judge whether rotating speed is equal to and cut out rotating speed, if the rotating speed is equal to cut out turning
Whether speed, judge power less than protection power, if power is again smaller than protection power, into protection domain, transducer output is high
Power to electrical network, if conversely, power more than protection power, enter shut down scope, transducer shut down, fan parking is for a period of time
Afterwards, by transducer automatic blower fan again；Shut down more than transducer if rotating speed is cut out if rotating speed, and when one section of fan parking
Between after, by transducer automatic blower fan again.
Further, the machine scope that opens can change according to different generator properties and blower fan converter characteristics
Become.
Further, the operable scope can change according to different generator properties and blower fan converter characteristics
Become.
Further, the protection domain can change according to different generator properties and blower fan converter characteristics
Become.
Further, the shutdown scope can change according to different generator properties and blower fan converter characteristics
Become.
Further, this method is common to vertical axis wind power generation system and horizontal shaft wind-power generating system.
Further, concrete operation method is：Wind-driven generator wind-engaging by static is rotated, and blower fan is to open machine state simultaneously
The alternating voltage of output lower voltage level, its electric voltage frequency is relatively low, corresponds to total power control in blower fan transducer bent
Line, now to open machine scope, blower fan transducer then exports relatively low power to electrical network；Blower fan continues wind-engaging and starts to add
Speed, the alternating voltage and higher electric voltage frequency of blower fan output higher level, it is that entrance can be grasped to correspond to total power controlling curve
Make scope, blower fan transducer then exports higher power to electrical network；Blower fan is persistently blown and is run up by high wind, wind-force
Then judge that blower fan enters protection domain with transducer, now wind-force transducer can be by control blower fan output voltage by rotation speed of fan
Control limits rotation speed of fan and persistently rises in a rated value；When high wind still persistently blows and wind-force transducer is uncontrollable
Firmly during blower fan output voltage, wind-force transducer then judges that blower fan is entered and shuts down scope, and now wind generator system then should be carried out
Corresponding shutdown operation.
The total power control for being applied to wind-force transducer of the present invention and its operational approach, using wind-driven generator, institute is defeated
The information such as the voltage, electric current and the electric voltage frequency that go out, through the interpretation of wind-force transducer, obtain generated output power and send out
Motor speed information, and wind-driven generator is controlled according to the total power controlling curve of wind-force transducer, this kind of method
Can effectively and quickly control blower fan, and the operating point that can be adjusted by curve (point of penetration, cuts out point, protection point and shuts down
Point etc.), with suitable for different generator properties and different switching device characteristic.
Description of the drawings
Fig. 1 is the total power controlling curve figure of the present invention；
Fig. 2 is the total power control for being applied to wind-force transducer of the present invention and its flow chart.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described.
As shown in figure 1, the total power control for being applied to wind-force transducer of the present invention and its operational approach, the total power
Control to refer on the basis of rotation speed of fan that the startup rotating speed by protects shutdown into incision rotating speed to rotating speed is cut out up to brake
Till control mode, wind-driven generator can reflect different electric pressure and electric voltage frequency, its voltage etc. in different rotating speeds
Level and electric voltage frequency are all proportional to the rotating speed of blower fan, therefore wind-force transducer can learn rotation speed of fan by detecting electric voltage frequency,
And output size is judged by electric pressure；The present invention by power to rotating speed based on, cook up the control of total power bent
Line, wind-force transducer then carries out rotation speed of fan control according to the total power curve.
As illustrated in fig. 1 and 2, the total power control for being applied to wind-force transducer of the invention and its operational approach, by wind
Machine rotary speed information controls converter output power size, and described total power control method is comprised the following steps：Detecting blower fan
Current voltage level and electric voltage frequency；Whether rotating speed is judged less than incision rotating speed, if the rotating speed judges power less than incision rotating speed
Whether startup power is less than, if power is again smaller than startup power, enters and open machine scope, transducer exports lower-wattage to electricity
Net, if conversely, power is more than startup power, total power controlling curve is not inconsistent generator property, resets curve and operation
Point；If rotating speed is more than incision rotating speed, whether rotating speed is judged less than rotating speed is cut out, if the rotating speed judges work(less than rotating speed is cut out
Whether rate is less than operable power, if power is again smaller than operable power, into operable scope, transducer is exported compared with Gao Gong
Rate is anti-to electrical network, if power is more than operable power, total power controlling curve is not inconsistent generator property, resets song
Line and operating point；Judge whether rotating speed is equal to and cut out rotating speed, if the rotating speed is equal to cuts out rotating speed, judge power whether less than protection
Power, if power is again smaller than protection power, into protection domain, transducer output high-power is to electrical network, if conversely, power is big
In protection power, then enter and shut down scope, transducer is shut down, fan parking for a period of time after, by transducer automatic again
Blower fan；Shut down more than transducer if rotating speed is cut out if rotating speed, and in fan parking for a period of time after, opened automatically again by transducer
Wind symptom machine.
Wherein, the voltage level and electric voltage frequency of electromotor output are detected, can be converted to via blower fan transducer defeated
Go out power and rotation speed of fan information.
Wherein, opening machine scope can change according to different generator properties and blower fan converter characteristics.
Wherein, operable scope can be changed according to different generator properties and blower fan converter characteristics.
Wherein, protection domain can be changed according to different generator properties and blower fan converter characteristics.
Wherein, shutting down scope can change according to different generator properties and blower fan converter characteristics.
Present invention is generally applicable to vertical axis wind power generation system and horizontal shaft wind-power generating system, its wind generator system system
Through kinetic energy storage is converted wind energy on blade, blade drives again electromotor to convert kinetic energy into mechanical energy, through generating
Machine cutting magnetic field converts kinetic energy into electric energy, and electric energy is sent to into local electrical network by AC-AC converter.
Total power control proposed by the invention, respectively operate in total power controlling curve point range, its operating point by stipulating
Point, blower fan protection point and fan parking point etc. are cut out comprising blower fan point of penetration, blower fan, can more be repartitioned out according to operating point and be opened
Machine scope, operable scope, protection domain and shutdown scope, blower fan transducer exports again appropriate work(according to scope is stipulated
Rate is on electrical network.
Illustrate, wind-driven generator wind-engaging by static is rotated, blower fan is to open machine state and export lower voltage level
Alternating voltage, its electric voltage frequency is relatively low, corresponds to total power controlling curve in blower fan transducer, is now Qi Jifan
Enclose, blower fan transducer then exports relatively low power to electrical network；Blower fan continues wind-engaging and starts to accelerate, and blower fan is exported compared with Gao Shui
Flat alternating voltage and higher electric voltage frequency, it is into operable scope, blower fan conversion to correspond to total power controlling curve
Device then exports higher power to electrical network；Blower fan is persistently blown and is run up by high wind, and wind-force transducer then judges wind
Machine enters protection domain, and now wind-force transducer can be controlled rotation speed of fan in a rated value by control blower fan output voltage,
Limit rotation speed of fan persistently to rise；When high wind still persistently blows and the uncontrollable firmly blower fan output voltage of wind-force transducer
When, wind-force transducer then judges that blower fan is entered and shuts down scope, and now wind generator system should then carry out corresponding shutdown work
Industry.
Shown in the above and figure is only the preferred embodiment of the present invention.It should be pointed out that general for this area
For logical technical staff, on the premise of the principle without departing from the present invention, some modifications and improvement can also be made, these also should
It is considered as belonging to protection scope of the present invention.
Claims (7)
1. a kind of total power for being applied to wind-force transducer is controlled and its operational approach, it is characterised in that：It is with rotation speed of fan
On the basis of, by start rotating speed, into incision rotating speed to cut out rotating speed until brake protect shutdown control mode, with
Based on power is to rotating speed, a total power controlling curve is designed, wind-force transducer then enters according to the total power controlling curve
Row rotation speed of fan is controlled；Blower fan can reflect different electric pressure and electric voltage frequency, its electric pressure and electricity in different rotating speeds
Voltage-frequency rate is all proportional to the rotating speed of blower fan, therefore learns rotation speed of fan by detecting electric voltage frequency, and is judged to export by electric pressure
Watt level；Eolic converter output size is controlled by rotation speed of fan, described total power control method includes following step
Suddenly：The current voltage level and electric voltage frequency of detecting blower fan；Whether rotating speed is judged less than incision rotating speed, if the rotating speed is less than incision
Rotating speed, judges that power, whether less than startup power, if power is again smaller than startup power, is entered and opens machine scope, transducer output
To electrical network, if conversely, power is more than startup power, total power controlling curve is not inconsistent generator property, sets again lower-wattage
Determine curve and operating point；If rotating speed is more than incision rotating speed, whether rotating speed is judged less than rotating speed is cut out, if the rotating speed is less than cutting out
Whether rotating speed, judge power less than operable power, if power is again smaller than operable power, into operable scope, conversion
Device exports higher-wattage to electrical network, anti-, if power is more than operable power, it is special that total power controlling curve is not inconsistent electromotor
Property, reset curve and operating point；Judge whether rotating speed is equal to and cut out rotating speed, if the rotating speed is equal to cuts out rotating speed, judge work(
Whether, less than protection power, if power is again smaller than protection power, into protection domain, transducer output high-power is to electricity for rate
Net, if conversely, power more than protection power, enter shut down scope, transducer shut down, fan parking for a period of time after, by turn
Parallel operation automatic blower fan again；Shut down more than transducer if rotating speed is cut out if rotating speed, and in fan parking for a period of time after, by
Transducer automatic blower fan again.
2. total power control and its operational approach of wind-force transducer are applied to as claimed in claim 1, it is characterised in that：
The machine scope that opens can be changed according to different generator properties and blower fan converter characteristics.
3. total power control and its operational approach of wind-force transducer are applied to as claimed in claim 1, it is characterised in that：
The operable scope can be changed according to different generator properties and blower fan converter characteristics.
4. total power control and its operational approach of wind-force transducer are applied to as claimed in claim 1, it is characterised in that：
The protection domain can be changed according to different generator properties and blower fan converter characteristics.
5. total power control and its operational approach of wind-force transducer are applied to as claimed in claim 1, it is characterised in that：
The shutdown scope can be changed according to different generator properties and blower fan converter characteristics.
6. the total power for being applied to wind-force transducer as described in one of claim 1-5 is controlled and its operational approach, and it is special
Levy and be：This method is common to vertical axis wind power generation system and horizontal shaft wind-power generating system.
7. total power control and its operational approach of wind-force transducer are applied to as claimed in claim 1, it is characterised in that：
Concrete operation method is：Wind-driven generator wind-engaging by static is rotated, and blower fan is to open machine state and export lower voltage level
Alternating voltage, its electric voltage frequency is relatively low, corresponds to total power controlling curve in blower fan transducer, is now Qi Jifan
Enclose, blower fan transducer then exports relatively low power to electrical network；Blower fan continues wind-engaging and starts to accelerate, and blower fan is exported compared with Gao Shui
Flat alternating voltage and higher electric voltage frequency, it is into operable scope, blower fan conversion to correspond to total power controlling curve
Device then exports higher power to electrical network；Blower fan is persistently blown and is run up by high wind, and wind-force transducer then judges wind
Machine enters protection domain, and now wind-force transducer can be controlled rotation speed of fan in a rated value by control blower fan output voltage,
Limit rotation speed of fan persistently to rise；When high wind still persistently blows and the uncontrollable firmly blower fan output voltage of wind-force transducer
When, wind-force transducer then judges that blower fan is entered and shuts down scope, and now wind generator system should then carry out corresponding shutdown work
Industry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699979.6A CN104373294B (en) | 2014-11-28 | 2014-11-28 | Full-power control and operation method applied to wind power converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699979.6A CN104373294B (en) | 2014-11-28 | 2014-11-28 | Full-power control and operation method applied to wind power converter |
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| Publication Number | Publication Date |
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| CN104373294A CN104373294A (en) | 2015-02-25 |
| CN104373294B true CN104373294B (en) | 2017-04-26 |
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| CN201410699979.6A Active CN104373294B (en) | 2014-11-28 | 2014-11-28 | Full-power control and operation method applied to wind power converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104675621B (en) * | 2015-03-02 | 2017-07-14 | 中船重工(重庆)海装风电设备有限公司 | Determine the method and system of speed-changing oar-changing wind power generation unit blade control parameter |
| CN109441723B (en) * | 2018-12-07 | 2020-03-17 | 新疆金风科技股份有限公司 | Start-up control method and device for wind generating set and storage medium |
| CN111852760B (en) * | 2019-04-24 | 2022-07-05 | 新疆金风科技股份有限公司 | Wind generating set operation control method and device and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098122A (en) * | 2006-06-28 | 2008-01-02 | 北京利德华福电气技术有限公司 | Method for driving synchronous machine to operation using power source type frequency converter |
| CN101813059A (en) * | 2010-03-08 | 2010-08-25 | 江苏省电力试验研究院有限公司 | Power control method of low-rated wind speed wind driven generating system |
| CN102102631A (en) * | 2011-03-22 | 2011-06-22 | 国电联合动力技术有限公司 | Running control method for wind generating set with gear box speed regulation front end |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7002259B2 (en) * | 2001-08-22 | 2006-02-21 | Clipper Windpower Technology, Inc. | Method of controlling electrical rotating machines connected to a common shaft |
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- 2014-11-28 CN CN201410699979.6A patent/CN104373294B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098122A (en) * | 2006-06-28 | 2008-01-02 | 北京利德华福电气技术有限公司 | Method for driving synchronous machine to operation using power source type frequency converter |
| CN101813059A (en) * | 2010-03-08 | 2010-08-25 | 江苏省电力试验研究院有限公司 | Power control method of low-rated wind speed wind driven generating system |
| CN102102631A (en) * | 2011-03-22 | 2011-06-22 | 国电联合动力技术有限公司 | Running control method for wind generating set with gear box speed regulation front end |
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| CN104373294A (en) | 2015-02-25 |
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