CN108923473A - A kind of soft tower wind-powered electricity generation field energy dispatching method and system based on intelligent crossing technology - Google Patents
A kind of soft tower wind-powered electricity generation field energy dispatching method and system based on intelligent crossing technology Download PDFInfo
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- CN108923473A CN108923473A CN201811072560.2A CN201811072560A CN108923473A CN 108923473 A CN108923473 A CN 108923473A CN 201811072560 A CN201811072560 A CN 201811072560A CN 108923473 A CN108923473 A CN 108923473A
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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
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- H02J3/386—
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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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a kind of soft tower wind-powered electricity generation field energy dispatching method and system based on intelligent crossing technology, it judges the operating status of each Wind turbines according to real-time revolving speed, the torque numerical value of each Wind turbines, and the Wind turbines in soft tower wind power plant are divided into non-adjustable active power unit and adjustable active power unit further according to judging result；Accurate regulation of energy is carried out to active power unit adjustable in soft tower wind power plant by energy dispatch control method.The present invention is by being divided into irreconcilable adjustable active power unit for each Wind turbines, realize that different each Wind turbines active power setting values is distributed by energy dispatching method for adjustable unit again, reach reduction unit and frequently passes through resonance zone number, reduce the operation of unit fatigue, wind power plant ascending, descending active power regulation deadline and degree of regulation are improved, the safety coefficient for passing through resonance zone is improved；Also when wind power plant is dispatched without energy, monitoring unit improves unit operational safety in the runing time of resonance zone.
Description
Technical field
The present invention relates to wind power plant field of intelligent control technology, more particularly to a kind of soft tower based on intelligent crossing technology
Wind-powered electricity generation field energy dispatching method and system.
Background technique
During running of wind generating set, the intrinsic frequency of the structure member of the corresponding frequency of mechanical drive train revolving speed and unit
When rate is close, the phenomenon that easily generating resonance, the frequency range for generating resonance is exactly to resonate to turn frequency domain, this usual region compared with
It is wide.With the increase of tower height, tower intrinsic frequency can be reduced, and result in the meeting of tower intrinsic frequency and impeller in this case
The frequency of revolving speed is overlapped；On the other hand, length of blade it is elongated be in order to realize good wind energy utilization efficiency, but in order to ensure
The safety of complete machine is had to the range for reducing wheel speed, this when, the three times rotational frequency of impeller also can be intrinsic with tower
Frequency is overlapped.When wherein unit turns frequency and enough resonance energies of tower intrinsic frequency access areas accumulation, it will generate
Big parts damages or even the serious consequence of tower can occur when serious for strong vibration.
Currently, with the quickening of low wind speed area and distributed Wind Power Generation, using high tower, the wind turbine of big blade
Group mentality of designing has become mainstream Development Trend.And as the policy that wind-powered electricity generation is surfed the Net at a competitive price is announced, Wind Power Generation quotient is to reduction
It is higher and higher to spend electric cost expectation.In order to meet the market demand, the unit weight of wind-powered electricity generation manufacturer design must just be reduced, thus
Reduce the front capital investment of unit and tower.Wherein, the weight for reducing high tower is the side of most effective, most direct cost declining
Formula avoids flexible tower and unit from generating the Wind turbines control technology quilt of resonance so more and more flexibility towers occur
As " soft tower technology ".
Wind power generating set control system using avoid resonant frequency region using more and more, but in wind power plant
Consider to reduce in energy scheduling system to pass through to resonate and turns frequency domain number as control system input parameter using not yet.Together
When, the research in terms of the control system of wind-powered electricity generation field energy scheduling system and Wind turbines cooperates still belongs to desk study rank
Section.With intelligent, integrated development, the later period will generate more and more multisystem shared datas in this way, cooperate
Integrated platform, this integrated intelligent platform can ensure unit safety operation from various dimensions.
The present invention is exactly the energy dispatching method and system using soft tower technology wind power plant, and this method is in wind-powered electricity generation field energy tune
When spending, the wind power plant ascending, descending active power regulation deadline can be improved and degree of regulation, each Wind turbines of reduction pass through resonance
Turn the frequency in frequency domain, which promotes Wind turbines single machine control system and wind power plant field grade control system to cooperate, more
Mend the unsound caused security risk of single machine control system strategy when passing through resonance and turning frequency domain.
Summary of the invention
The soft tower wind-powered electricity generation field energy scheduling based on intelligent crossing technology that the technical problem to be solved in the present invention is to provide a kind of
Method makes it in the scheduling of wind-powered electricity generation field energy, and the wind power plant ascending, descending active power regulation deadline can be improved and adjust essence
It spends, reduce each Wind turbines and pass through resonance and turn the frequency in frequency domain, this method promotes Wind turbines single machine control system and wind-powered electricity generation
Field grade control system cooperates, peace caused by making up single machine control system strategy being unsound when passing through resonance and turning frequency domain
Full hidden danger.
In order to solve the above technical problems, the present invention provides a kind of soft tower wind-powered electricity generation field energy scheduling based on intelligent crossing technology
Method includes the following steps：
Step 1: judging the operating status of each Wind turbines, then root according to real-time revolving speed, the torque numerical value of each Wind turbines
It is judged that the Wind turbines in the soft tower wind power plant are divided into non-adjustable active power unit and adjustable active power machine by result
Group；
Step 2 carries out active power unit adjustable in the soft tower wind power plant by energy dispatch control method accurate
Regulation of energy.
As an improvement of the present invention, the specific method for judging each running of wind generating set state in the step 1 is：
The generator speed of each Wind turbines is turned to the lower limit rotating speed Nmin and maximum speed Nmax phase in frequency domain with resonance
Compare and the generator torque of each Wind turbines is compared with resonance turns the lower limit torque Tmin and upper limit torque Tmax in frequency domain
Compared with：
If generator speed is less than lower limit rotating speed Nmin, and generator torque is less than lower limit torque Tmin, then described in judgement
Wind turbines do not pass through resonance and turn frequency domain, turn operating status below frequency domain in resonance, the Wind turbines belong to can
Adjust active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is greater than upper limit torque Tmax, then described in judgement
Wind turbines are completed resonance and turn passing through for frequency domain, turn operating status above frequency domain, the Wind turbines category in resonance
In adjustable active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is less than upper limit torque Tmax, then described in judgement
Wind turbines are in resonance and turn frequency domain operating status, and the Wind turbines belong to non-adjustable active power unit.
It is further improved, the specific method of each running of wind generating set state of judgement further includes：When judging the wind-powered electricity generation
When unit turns frequency domain operating status in resonance, continue to judge that the Wind turbines are in the time that the resonance turns frequency domain
It is no to issue warning note if being more than more than preset duration, and issue the dock that halt instruction realizes the Wind turbines
Reason.
It is further improved, for adjustable active power unit, wherein turning the wind of operating status below frequency domain in resonance
It is preferential that the power per liter priority of motor group will be later than the power per liter for turning the Wind turbines of operating status above frequency domain in resonance
Grade.
It is further improved, energy dispatch control method includes the following steps in the step 2：
Wind power plant net is assigned the difference for determining active power target value Pset and the real-time active power value Preal of wind power plant make
For judgment criteria：
If judging, Pset-Preal >=100 are invalid, continue to judge whether Pset-Preal≤- 100 is true：
If Pset-Preal≤- 100 is invalid, show that the active power of wind power field in controlling dead error, does not then need
Regulation of energy is carried out to each Wind turbines of the wind power plant；
If Pset-Preal≤- 100 is set up, shows that the wind power plant needs to drop power regulation, then continue to judge
Whether Pset-Preal value, which is less than, is not passed through the drop power adjustable allowance that resonance turns frequency domain, if being less than, differentiation fine tuning is each
Wind turbines active power setting value；If more than then setting up identical drop penetration power resonance and turn the wind turbine group in frequency domain, so
To can downgrade margin of power in the wind turbine group afterwards increases to adjustable lower limit value, further according to each wind in the wind turbine group
The practical active power of motor group and the weight that the difference formation between margin of power lower limit value can be downgraded, respectively to each wind turbine component
With active set value of the power；
If judging, Pset-Preal >=100 is set up, and is shown that the wind power plant needs power per liter to regulate and control, is then continued to judge
Whether Pset-Preal value, which is less than, is not passed through the adjustable allowance of power per liter that resonance turns frequency domain, if being less than, differentiation fine tuning is each
Wind turbines active power setting value；If more than then setting up identical power per liter and pass through resonance and turn the wind turbine group in frequency domain, so
Power per liter allowance adjustable in the wind turbine group is increased into adjustable upper limit value afterwards, further according to each wind in the wind turbine group
The weight that difference between the practical active power of motor group and adjustable power per liter allowance upper limit value is formed, respectively to each wind turbine component
With active set value of the power.
The present invention also provides a kind of, and the soft tower wind-powered electricity generation field energy based on intelligent crossing technology dispatches system, including unit operation
Condition judgment module and energy dispatching control module,
The operating states of the units judgment module judges each for real-time revolving speed, the torque numerical value according to each Wind turbines
Wind turbines in the soft tower wind power plant are divided into non-adjustable wattful power further according to judging result by the operating status of Wind turbines
Rate unit and adjustable active power unit；
The energy dispatching control module, for having by energy dispatch control method to adjustable in the soft tower wind power plant
Function power unit carries out accurate regulation of energy.
It is further improved, the operating states of the units judgment module is for specifically executing the following steps:
The generator speed of each Wind turbines is turned to the lower limit rotating speed Nmin and maximum speed Nmax phase in frequency domain with resonance
Compare and the generator torque of each Wind turbines is compared with resonance turns the lower limit torque Tmin and upper limit torque Tmax in frequency domain
Compared with if generator speed is less than lower limit rotating speed Nmin, and generator torque is less than lower limit torque Tmin, then judges the wind turbine
Group turns operating status below frequency domain in resonance, and the Wind turbines are classified as adjustable active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is greater than upper limit torque Tmax, then described in judgement
Wind turbines are in resonance and turn operating status above frequency domain, and the Wind turbines are classified as adjustable active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is less than upper limit torque Tmax, then described in judgement
Wind turbines are in resonance and turn frequency domain operating status, and the Wind turbines are classified as non-adjustable active power unit.
It is further improved, the operating states of the units judgment module is also used to execute the following steps：
When judging that the Wind turbines turn frequency domain operating status in resonance, the Wind turbines are monitored described total
Vibration turns the runing time in frequency domain, if the time is more than preset duration, issues warning note to the Wind turbines.
It is further improved, the operating states of the units judgment module is also used to execute power per liter prioritising step, will
The power per liter priority for turning the Wind turbines of operating status below frequency domain in resonance is placed in be turned above frequency domain in resonance
After the power per liter priority of the Wind turbines of operating status.
It is further improved, the energy dispatching control module, for specifically executing the following steps：
Wind power plant net is assigned the difference for determining active power target value Pset and the real-time active power value Preal of wind power plant make
For judgment criteria：
If judging, Pset-Preal >=100 are invalid, continue to judge whether Pset-Preal≤- 100 is true：
If Pset-Preal≤- 100 is invalid, show that the active power of wind power field in controlling dead error, does not then need
Regulation of energy is carried out to each Wind turbines of the wind power plant；
If Pset-Preal≤- 100 is set up, shows that the wind power plant needs to drop power regulation, then continue to judge
Whether Pset-Preal value, which is less than, is not passed through the drop power adjustable allowance that resonance turns frequency domain, if being less than, differentiation fine tuning is each
Wind turbines active power setting value；If more than then setting up identical drop penetration power resonance and turn the wind turbine group in frequency domain, so
To can downgrade margin of power in the wind turbine group afterwards increases to adjustable lower limit value, further according to each wind in the wind turbine group
The practical active power of motor group and the weight that the difference formation between margin of power lower limit value can be downgraded, respectively to each wind turbine component
With active set value of the power；
If judging, Pset-Preal >=100 is set up, and is shown that the wind power plant needs power per liter to regulate and control, is then continued to judge
Whether Pset-Preal value, which is less than, is not passed through the adjustable allowance of power per liter that resonance turns frequency domain, if being less than, differentiation fine tuning is each
Wind turbines active power setting value；If more than then setting up identical power per liter and pass through resonance and turn the wind turbine group in frequency domain, so
Power per liter allowance adjustable in the wind turbine group is increased into adjustable upper limit value afterwards, further according to each wind in the wind turbine group
The weight that difference between the practical active power of motor group and adjustable power per liter allowance upper limit value is formed, respectively to each wind turbine component
With active set value of the power.
By adopting such a design, the present invention has at least the following advantages：
The present invention is based on the soft tower wind-powered electricity generation field energy dispatch control methods of soft tower technology, first according to the reality of each Wind turbines
When revolving speed, torque numerical value judge the operating statuses of each Wind turbines, each Wind turbines are divided into further according to judging result non-adjustable
Active power unit and adjustable active power unit, then carried out for adjustable active power unit by energy dispatch control method
The ascending, descending active power of wind power plant regulates and controls, which also realizes different each wind turbines according to different situations
Group active power setting value distribution reaches reduction unit and frequently passes through the number that resonance turns frequency domain, reduces the operation of unit fatigue
Purpose.
Wind power plant ascending, descending active power regulation deadline and tune can be improved when wind-powered electricity generation field energy is dispatched in the present invention
Precision is saved, also improves and passes through the safety coefficient that resonance turns frequency domain；When wind power plant is dispatched without energy, monitoring unit exists
Resonance turns the runing time in frequency domain, if too long sending early warning, as the intelligent protection defence line of Wind turbines, improves wind-powered electricity generation
The safety of unit.
Detailed description of the invention
The above is merely an overview of the technical solutions of the present invention, in order to better understand the technical means of the present invention, below
In conjunction with attached drawing, the present invention is described in further detail with specific embodiment.
Fig. 1 is the wind power generating set rotary speed-torque relational graph of the soft tower technology of present invention application.
Fig. 2 is the state decision logic figure that Wind turbines of the present invention pass through that resonance turns frequency domain.
Fig. 3 is the control logic figure of wind-powered electricity generation field energy dispatching method of the present invention.
Specific embodiment
The present invention is the soft tower wind-powered electricity generation field energy dispatching method carried out based on soft tower technology and system, for soft tower technology,
It is briefly discussed below.
Referring to shown in attached drawing 1, horizontal axis is generator speed, and the longitudinal axis is generator torque, and control system of wind turbines passes through
Direct torque revolving speed skips tower intrinsic frequency, and the corresponding Wind turbines rotary speed area of intrinsic frequency is Nmin--NmaxAs long as protecting
Card Wind turbines resonate herein to be turned frequency domain and does not stop the long time, does not accumulate excessive vibrational energy, unit would not generate
Covibration ensures that unit safety operation.
When the generator speed of Wind turbines reaches N0When, indicate that unit has been in grid connection state, with Wind turbines
The continuous rising of generator speed, corresponding torque also can be also to exist always with increase, the active power of certain Wind turbines
Increase；When revolving speed reaches NminWhen, unit will not be further continued for increasing revolving speed at this time, revolving speed can be controlled by way of increasing torque,
It is equivalent to and accumulates mechanical kinetic energy near this revolving speed point；When revolving speed is NminWhen the torque at place is increased near T1, wind turbine at this time
The mechanical kinetic energy of group accumulation has been able to guarantee unit quickly through Nmin--NmaxRegion, control system of wind turbines will will turn
Square is rapidly reduced to T2, promotes revolving speed rapidly to NmaxThen position is continuously increased torque to T againmax, so far, Wind turbines
It has just passed through resonance and has turned frequency domain, belonged to intelligent crossing technology, i.e., soft tower technology.
Soft tower wind power plant is exactly in wind power plant including several or entirely by the Wind turbines structure of the application soft tower technology
At, for the energy dispatching method of this soft tower wind power plant must be considered in wind-powered electricity generation field energy scheduling during subtract as far as possible
Few unit passes through the number that resonance turns frequency domain, reduces unit and passes through the risk that resonance turns frequency domain repeatedly.The present invention is based on
The soft tower wind-powered electricity generation field energy scheduling system of soft tower technology and its specific energy dispatching method are as follows.
The present invention is based on the soft tower wind-powered electricity generation field energies of intelligent crossing technology to dispatch system, including operating states of the units judges mould
Block and energy dispatching control module.
The operating states of the units judgment module, for judging each wind according to real-time revolving speed, the torque numerical value of each Wind turbines
Wind turbines in soft tower wind power plant are divided into non-adjustable active power unit further according to judging result by the operating status of motor group
With adjustable active power unit.
Wherein, the judgment method of specific each running of wind generating set state is：
Referring to shown in attached drawing 2, the real-time running datas such as generator speed, the torque of each Wind turbines are acquired in real time, will be sent out
Compared with motor speed with resonance turns lower limit rotating speed Nmin, the maximum speed Nmax in frequency domain and generator torque and resonance
Turn the lower limit torque Tmin in frequency domain, upper limit torque Tmax compares；
If generator speed is less than lower limit rotating speed Nmin, and generator torque is less than resonance and turns frequency domain lower limit torque value
Tmin then judges that this Wind turbines does not pass through resonance and turns frequency domain, in turning operating status below frequency domain in resonance.At this time
The active power that the Wind turbines can be calculated declines adjustable allowance, the i.e. the generating set real-time active power-generating set
Adjustable active power lower limit value, and by this Wind turbines power per liter priority to rear.
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is greater than resonance and turns frequency domain upper limit torque value
Tmax then judges that this Wind turbines is completed resonance and turns passing through for frequency domain, in turning operating status above frequency domain in resonance.
Can calculate at this time the Wind turbines the adjustable upper limit allowance of active power, unit distance resonance turn frequency domain adjustable lower limit it is abundant
Amount and the minimum resonance of unit distance turn the adjustable lower limit allowance in frequency domain, and this Wind turbines is continued to the priority of power per liter
Before；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is less than resonance and turns frequency domain upper limit torque value
Tmax then judges that this Wind turbines is in resonance and turns operating status in frequency domain.The unadjustable Wind turbines is active at this time
Power.Meanwhile the wind-powered electricity generation field energy scheduling system need to judge the Wind turbines resonate herein turn frequency domain time T whether mistake
It is long, if overlong time, it is more than preset duration, alarms issuing, the Wind turbines is prompted to turn frequency domain overlong time in resonance,
And issue halt instruction.Wind-powered electricity generation field energy scheduling system plays the responsibility for protecting aerogenerator unit safe in this way.
To sum up, Wind turbines each in wind power plant are passed through with the judgement that resonance turns frequency domain, the wind-powered electricity generation field energy by above-mentioned
Pair scheduling system can be more clear the operating status for accurately grasping each Wind turbines in field, be advantageously implemented subsequent step, i.e.,
Adjustable active power unit carries out active power regulation, more intelligent distribution Wind turbines active power setting in wind power plant
Value helps to promote integrally-regulated response time and control precision.
The energy dispatching control module, for passing through energy dispatch control method to adjustable active power in soft tower wind power plant
Unit carries out accurate regulation of energy.Specifically regulation method is：
Referring to shown in attached drawing 3, wind power plant net is assigned and determines active power target value Pset and the real-time active power of wind power plant
The difference DELTA of value Preal is as judgment criteria：
If judging, Pset-Preal >=100 are invalid, continue to judge whether Pset-Preal≤- 100 is true：
If Pset-Preal≤- 100 is invalid, shows that active power of wind power field is in controlling dead error at this time, then do not need
Regulation of energy is carried out to Wind turbines；
If Pset-Preal≤- 100 is set up, show that wind power plant needs to drop power regulation at this time at this time, then continues to sentence
Whether disconnected Δ, which is less than, is not passed through the drop power adjustable allowance that resonance turns frequency domain, if being less than, then it represents that wind power plant only needs at this time
Differentiation adjusts the active power setting value of each Wind turbines, and the Wind turbines is made not need to pass through resonance and turn frequency domain and can expire
The target value instruction that sufficient power grid issues；If more than then needing to select and set up and participate in identical drop penetration power and resonate to turn frequency domain
Wind turbine group, then will can downgrade margin of power in the wind turbine group increases to adjustable lower limit value, further according to the wind-powered electricity generation
The practical active power of each Wind turbines and the weight that the difference between margin of power lower limit value is formed can be downgraded in machine group, respectively to
Each Wind turbines distribute active set value of the power, so that each Wind turbines is passed through resonance as early as possible and turn frequency domain, reduce unit fatigue fortune
Row, improving wind power plant reduces active power regulation deadline and degree of regulation.
If judging, Pset-Preal >=100 is set up, and shows that wind power plant carries out rising active power regulation at this time, connects
Continue to judge whether Δ is less than and do not pass through the adjustable allowance of power per liter that resonance turns frequency domain, if being less than, then it represents that wind-powered electricity generation at this time
Field only needs differentiation to adjust the active power setting value of each Wind turbines, and the Wind turbines is made not need to pass through the resonance area Zhuan Pin
Domain can meet the target value instruction that power grid issues；If more than then needing to select and set up and participate in identical power per liter and pass through resonance
Turn the wind turbine group in frequency domain, power per liter allowance adjustable in the wind turbine group is then increased into adjustable upper limit value, then root
The power formed according to the difference between the practical active power of Wind turbines each in the wind turbine group and adjustable power per liter allowance upper limit value
Weight distributes active set value of the power to each Wind turbines respectively, so that each Wind turbines is passed through resonance as early as possible and turns frequency domain, reduces machine
Group fatigue operation, improves wind power plant and rises active power regulation deadline and degree of regulation.
To sum up, the present invention is based on the soft tower wind-powered electricity generation field energy dispatching methods of intelligent crossing technology, first according to each wind turbine
Real-time revolving speed, the torque numerical value of group judge the operating status of each Wind turbines, will be in soft tower wind power plant further according to judging result
Wind turbines are divided into non-adjustable active power unit and adjustable active power unit, then by energy dispatch control method to soft tower
Adjustable active power unit carries out accurate regulation of energy in wind power plant, is carrying out ascending, descending wattful power to adjustable active power unit
When rate regulates and controls, it is possible to reduce unit frequently passes through resonance zone number, reduces the operation of unit fatigue, and resonance zone is passed through in raising
Safety coefficient, and improve wind power plant ascending, descending active power regulation deadline and degree of regulation；To non-adjustable active power machine
Group, monitoring unit turns the runing time in frequency domain in resonance, if too long sending early warning, plays and guarantees aerogenerator unit safe fortune
Capable effect.
The present invention is based on the soft tower wind-powered electricity generation field energies of intelligent crossing technology to dispatch system for Wind turbines single machine control system
It cooperates with wind power plant field grade control system, it is unsound caused to make up single machine control system strategy when passing through resonance zone
Security risk.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technical staff makes a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all falls within this hair
In bright protection scope.
Claims (10)
1. a kind of soft tower wind-powered electricity generation field energy dispatching method based on intelligent crossing technology, which is characterized in that include the following steps：
Step 1: judge the operating status of each Wind turbines according to real-time revolving speed, the torque numerical value of each Wind turbines, further according to sentencing
Wind turbines in the soft tower wind power plant are divided into non-adjustable active power unit and adjustable active power unit by disconnected result；
Step 2 carries out accurate energy to active power unit adjustable in the soft tower wind power plant by energy dispatch control method
Regulation.
2. the soft tower wind-powered electricity generation field energy dispatching method according to claim 1 based on intelligent crossing technology, which is characterized in that
The specific method for judging each running of wind generating set state in the step 1 is：
The generator speed of each Wind turbines is compared with the lower limit rotating speed Nmin and maximum speed Nmax that resonance turns frequency domain,
And compared with the generator torque of each Wind turbines with resonance turns the lower limit torque Tmin and upper limit torque Tmax in frequency domain：
If generator speed is less than lower limit rotating speed Nmin, and generator torque is less than lower limit torque Tmin, then judges the wind-powered electricity generation
Unit does not pass through resonance and turns frequency domain, turns operating status below frequency domain in resonance, and the Wind turbines, which belong to, adjustable to be had
Function power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is greater than upper limit torque Tmax, then judges the wind-powered electricity generation
Unit is completed resonance and turns passing through for frequency domain, turns operating status above frequency domain in resonance, the Wind turbines belong to can
Adjust active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is less than upper limit torque Tmax, then judges the wind-powered electricity generation
Unit is in resonance and turns frequency domain operating status, and the Wind turbines belong to non-adjustable active power unit.
3. the soft tower wind-powered electricity generation field energy dispatching method according to claim 2 based on intelligent crossing technology, which is characterized in that
The specific method of each running of wind generating set state of the judgement further includes：Turn frequency domain when judging that the Wind turbines are in resonate
When operating status, continue to judge that the Wind turbines turn whether the time in frequency domain is more than preset duration in the resonance, if super
It crosses, then issues warning note, and issue the shutdown processing that halt instruction realizes the Wind turbines.
4. the soft tower wind-powered electricity generation field energy dispatching method according to claim 2 based on intelligent crossing technology, which is characterized in that
For adjustable active power unit, wherein turning the power per liter priority of the Wind turbines of operating status below frequency domain in resonance
It is later than the power per liter priority for turning the Wind turbines of operating status above frequency domain in resonance.
5. the soft tower wind-powered electricity generation field energy dispatching method according to any one of claims 1 to 4 based on intelligent crossing technology,
It is characterized in that, energy dispatch control method includes the following steps in the step 2：
Wind power plant net is assigned the difference for determining the active power target value Pset and real-time active power value Preal of wind power plant as sentencing
Disconnected standard：
If judging, Pset-Preal >=100 are invalid, continue to judge whether Pset-Preal≤- 100 is true：
If Pset-Preal≤- 100 is invalid, show that the active power of wind power field in controlling dead error, is not then needed to institute
Each Wind turbines for stating wind power plant carry out regulation of energy；
If Pset-Preal≤- 100 is set up, shows that the wind power plant needs to drop power regulation, then continue to judge Pset-
Whether Preal value, which is less than, is not passed through the drop power adjustable allowance that resonance turns frequency domain, if being less than, differentiation finely tunes each wind turbine
Group active power setting value；If more than then setting up identical drop penetration power resonance and turn the wind turbine group in frequency domain, then by institute
Margin of power can be downgraded by stating in wind turbine group increase to adjustable lower limit value, further according to each Wind turbines in the wind turbine group
Practical active power and the weight that can downgrade the difference formation between margin of power lower limit value, are distributed to each Wind turbines active respectively
Set value of the power；
If judging, Pset-Preal >=100 is set up, and is shown that the wind power plant needs power per liter to regulate and control, is then continued to judge
Whether Pset-Preal value, which is less than, is not passed through the adjustable allowance of power per liter that resonance turns frequency domain, if being less than, differentiation fine tuning is each
Wind turbines active power setting value；If more than then setting up identical power per liter and pass through resonance and turn the wind turbine group in frequency domain, so
Power per liter allowance adjustable in the wind turbine group is increased into adjustable upper limit value afterwards, further according to each wind in the wind turbine group
The weight that difference between the practical active power of motor group and adjustable power per liter allowance upper limit value is formed, respectively to each wind turbine component
With active set value of the power.
6. a kind of soft tower wind-powered electricity generation field energy based on intelligent crossing technology dispatches system, which is characterized in that run shape including unit
State judgment module and energy dispatching control module,
The operating states of the units judgment module, for judging each wind-powered electricity generation according to real-time revolving speed, the torque numerical value of each Wind turbines
Wind turbines in the soft tower wind power plant are divided into non-adjustable active power machine further according to judging result by the operating status of unit
Group and adjustable active power unit；
The energy dispatching control module, for passing through energy dispatch control method to adjustable wattful power in the soft tower wind power plant
Rate unit carries out accurate regulation of energy.
7. the soft tower wind-powered electricity generation field energy according to claim 6 based on intelligent crossing technology dispatches system, which is characterized in that
The operating states of the units judgment module is for specifically executing the following steps:
The generator speed of each Wind turbines is compared with the lower limit rotating speed Nmin and maximum speed Nmax that resonance turns frequency domain,
And compared with the generator torque of each Wind turbines with resonance turns the lower limit torque Tmin and upper limit torque Tmax in frequency domain, if
Generator speed is less than lower limit rotating speed Nmin, and generator torque is less than lower limit torque Tmin, then judges at the Wind turbines
Turn operating status below frequency domain in resonance, the Wind turbines are classified as adjustable active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is greater than upper limit torque Tmax, then judges the wind-powered electricity generation
Unit is in resonance and turns operating status above frequency domain, and the Wind turbines are classified as adjustable active power unit；
If generator speed is greater than lower limit rotating speed Nmin, and generator torque is less than upper limit torque Tmax, then judges the wind-powered electricity generation
Unit is in resonance and turns frequency domain operating status, and the Wind turbines are classified as non-adjustable active power unit.
8. the soft tower wind-powered electricity generation field energy according to claim 7 based on intelligent crossing technology dispatches system, which is characterized in that
The operating states of the units judgment module is also used to execute the following steps：
When judging that the Wind turbines turn frequency domain operating status in resonance, monitors the Wind turbines and turn in the resonance
The runing time in frequency domain issues warning note to the Wind turbines if the time is more than preset duration.
9. the soft tower wind-powered electricity generation field energy according to claim 7 based on intelligent crossing technology dispatches system, which is characterized in that
The operating states of the units judgment module is also used to execute power per liter prioritising step, will turn below frequency domain in resonance
The power per liter priority of the Wind turbines of operating status, which is placed in, turns the Wind turbines of operating status above frequency domain in resonance
After power per liter priority.
10. system is dispatched according to the described in any item soft tower wind-powered electricity generation field energies based on intelligent crossing technology of claim 6 to 9,
It is characterized in that, the energy dispatching control module, for specifically executing the following steps：
Wind power plant net is assigned the difference for determining the active power target value Pset and real-time active power value Preal of wind power plant as sentencing
Disconnected standard：
If judging, Pset-Preal >=100 are invalid, continue to judge whether Pset-Preal≤- 100 is true：
If Pset-Preal≤- 100 is invalid, show that the active power of wind power field in controlling dead error, is not then needed to institute
Each Wind turbines for stating wind power plant carry out regulation of energy；
If Pset-Preal≤- 100 is set up, shows that the wind power plant needs to drop power regulation, then continue to judge Pset-
Whether Preal value, which is less than, is not passed through the drop power adjustable allowance that resonance turns frequency domain, if being less than, differentiation finely tunes each wind turbine
Group active power setting value；If more than then setting up identical drop penetration power resonance and turn the wind turbine group in frequency domain, then by institute
Margin of power can be downgraded by stating in wind turbine group increase to adjustable lower limit value, further according to each Wind turbines in the wind turbine group
Practical active power and the weight that can downgrade the difference formation between margin of power lower limit value, are distributed to each Wind turbines active respectively
Set value of the power；
If judging, Pset-Preal >=100 is set up, and is shown that the wind power plant needs power per liter to regulate and control, is then continued to judge
Whether Pset-Preal value, which is less than, is not passed through the adjustable allowance of power per liter that resonance turns frequency domain, if being less than, differentiation fine tuning is each
Wind turbines active power setting value；If more than then setting up identical power per liter and pass through resonance and turn the wind turbine group in frequency domain, so
Power per liter allowance adjustable in the wind turbine group is increased into adjustable upper limit value afterwards, further according to each wind in the wind turbine group
The weight that difference between the practical active power of motor group and adjustable power per liter allowance upper limit value is formed, respectively to each wind turbine component
With active set value of the power.
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