CN109217380A - A kind of abandonment is rationed the power supply method and device - Google Patents
A kind of abandonment is rationed the power supply method and device Download PDFInfo
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- H—ELECTRICITY
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Abstract
It rations the power supply method and device the present invention provides a kind of abandonment, is related to the field of rationing the power supply.Abandonment provided by the invention is rationed the power supply method, when progress abandonment is rationed the power supply, corresponding ratio of rationing the power supply is provided with for different wind-powered electricity generation power plant, preferably control the target power output of each wind-powered electricity generation power plant and capacity of rationing the power supply, finally, with reference to always ration the power supply capacity greater than target always ration the power supply capacity when, just according to each wind-powered electricity generation power plant target power output ration the power supply, ensure that the accuracy for the scheme of rationing the power supply.
Description
Technical field
The present invention relates to the field of rationing the power supply, ration the power supply method and device in particular to a kind of abandonment.
Background technique
Under national energy conservation and emission reduction, the overall background of energy revolution, emerge rapidly by the renewable energy of representative of wind-powered electricity generation, wind
Electric project at home get up by multiple province rapid developments.But since new energy station location power grid receives scarce capacity, station
Completion time of project mismatches, wind-powered electricity generation climate influences the reasons such as unstable needs reasonably when necessary to guarantee power grid security
Abandonment is carried out to ration the power supply.
Currently, ration the power supply for abandonment, the mainstream solution that country proposes is " wind fire replaces transaction ", i.e., when power grid due to
When the reasons such as peak regulation or rack constraint are forced abandonment and ration the power supply, the thermoelectricity power plant to participate in business further subtracts on the basis of minimum mode
Few power generation, gives way for wind-powered electricity generation, replaces thermoelectricity power plants generating electricity by wind-powered electricity generation power plant.Such solution is directly by the skill of wind-electricity integration
Art problem is transformed to the Financial Problem between wind-powered electricity generation and thermoelectricity, and wind-powered electricity generation power plant is allowed to buy Generation Right from thermoelectricity power plant.It is slow
Solution abandonment is rationed the power supply problem, National Energy Board's macro adjustments and controls, it is desirable that further strengthen the related work of wind-electricity integration and consumption.
Above-mentioned settling mode is policy, long-term planning control, has positive effect to wind-powered electricity generation normal operation.But with regard to mesh
For preceding situation, must abandonment ration the power supply in the case where, from economy and security standpoint, need reasonably ration the power supply strategy solution
Certainly current abandonment on a large scale is rationed the power supply phenomenon.
Currently used method of rationing the power supply mainly includes two kinds: dispatcher's manual control mode and software of rationing the power supply automatically control mould
Formula.
Dispatcher's MANUAL CONTROL mode refers to when the limited electricity demanding of power grid, is directly led to by phone by dispatching of power netwoks person
Know wind power plant or in such a way that system software sets fixed target value to wind power plant.This method manually realized by dispatcher,
It is difficult to meet the demand for control after modern power network new energy accesses on a large scale；
Software automatic control mode of rationing the power supply controls software using special new energy, supervises in real time to power grid significant data
Depending on calculating each participation automatically and rationing the power supply the target value of wind-powered electricity generation power plant, and pass through main website-substation link when the limited electricity demanding of power grid
Control command is issued to wind-powered electricity generation Power Plant Side automatic control system.This method need to preset new energy power distribution strategies, and need
According to power grid real-time condition, the control target to each wind power plant is adjusted in time.
Summary of the invention
It rations the power supply method and device the purpose of the present invention is to provide a kind of abandonment.
In a first aspect, rationing the power supply method the embodiment of the invention provides a kind of abandonment, comprising:
According to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant, the second of each wind-powered electricity generation power plant is calculated separately
Simultaneity factor；
According to the installed capacity of the second simultaneity factor of each wind-powered electricity generation power plant and each wind-powered electricity generation power plant, each wind-powered electricity generation is calculated separately
The capacity of rationing the power supply of power plant；
According to the installed capacity of the ration the power supply capacity and each wind-powered electricity generation power plant of each wind-powered electricity generation power plant, each wind-powered electricity generation power plant is calculated
Target power output；
Judge always ration the power supply capacity with reference to whether capacity of always rationing the power supply is greater than target；It is according to multiple wind-powered electricity generations with reference to capacity of always rationing the power supply
Power plant rations the power supply what calculation of capacity obtained；
If always rationing the power supply capacity with reference to capacity always is rationed the power supply greater than target, contributes and limited according to the target of each wind-powered electricity generation power plant
Electricity.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein also
Include:
According to wind-powered electricity generation power plant always in real time power output, demand ration the power supply total amount and wind-powered electricity generation power plant total specified installed capacity calculate it is default
The first simultaneity factor.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein root
According to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant, the second simultaneity factor of each wind-powered electricity generation power plant is calculated separately, is wrapped
It includes:
According to ranking and wind-powered electricity generation power plant opposite ration the power supply ratio of each wind-powered electricity generation power plant in abandonment sequence, calculate separately each
The deviation ratio of rationing the power supply of wind-powered electricity generation power plant；The opposite ratio of rationing the power supply of wind-powered electricity generation power plant is for indicating limit corresponding to different rankings in abandonment sequence
Electric deviation ratio；
According to ration the power supply deviation ratio and preset first simultaneity factor of each wind-powered electricity generation power plant, each wind-powered electricity generation power plant is calculated separately
Second simultaneity factor.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein
According to the installed capacity of the ration the power supply capacity and each wind-powered electricity generation power plant of each wind-powered electricity generation power plant, the target power output of each wind-powered electricity generation power plant is calculated
Later, further includes:
Judge whether the target power output of target wind-powered electricity generation power plant is greater than the real-time power output of target wind-powered electricity generation power plant；
If the target power output of target wind-powered electricity generation power plant is not more than the real-time power output of target wind-powered electricity generation power plant, judgement ginseng is thened follow the steps
It examines capacity of always rationing the power supply and whether is greater than target and always ration the power supply capacity.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein side
Method further include:
If the target power output of target wind-powered electricity generation power plant is greater than the real-time power output of target wind-powered electricity generation power plant, according to target wind-powered electricity generation power plant
Real-time power output and preset first coefficient of reduction recalculate the target power output of target wind-powered electricity generation power plant.
With reference to first aspect, the embodiment of the invention provides the 5th kind of possible embodiments of first aspect, wherein side
Method further include:
If always rationing the power supply capacity with reference to capacity always is rationed the power supply less than target, preset first is adjusted together using the second coefficient of reduction
When rate, and re-execute the steps according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant, calculate separately each wind
Second simultaneity factor of power plant.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein wind
Ranking of the power plant in abandonment sequence is calculated according to following parameter: plan yesterday electricity, yesterday actually accomplish electricity
Amount, this monthly plan electricity, this month actually accomplish electricity, this month rations the power supply electricity, this month super generating electricity and scheduled punitive parameter.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein presses
It rations the power supply according to the target power output of each wind-powered electricity generation power plant, comprising:
The target power output of wind-powered electricity generation power plant is sent to each power plant respectively, so that each wind-powered electricity generation power plant is according to corresponding target
Processing works.
Second aspect, the embodiment of the invention also provides a kind of abandonment electricity-limiting devices, comprising:
First computing module, for calculating separately according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant
Second simultaneity factor of each wind-powered electricity generation power plant；
Second computing module, for being held according to the second simultaneity factor of each wind-powered electricity generation power plant and the installation of each wind-powered electricity generation power plant
Amount, calculates separately the capacity of rationing the power supply of each wind-powered electricity generation power plant；
Third computing module, for the installed capacity according to the ration the power supply capacity and each wind-powered electricity generation power plant of each wind-powered electricity generation power plant,
Calculate the target power output of each wind-powered electricity generation power plant；
First judgment module is always rationed the power supply capacity for judging whether to be greater than with reference to capacity of always rationing the power supply target；With reference to always rationing the power supply
Capacity is to ration the power supply what calculation of capacity obtained according to multiple wind-powered electricity generation power plant；
Control module is used for if always rationing the power supply capacity with reference to capacity always is rationed the power supply greater than target according to each wind-powered electricity generation power plant
Target power output is rationed the power supply.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein also
Include:
4th computing module, for always power output, demand to be rationed the power supply the total value of total amount and wind-powered electricity generation power plant in real time according to wind-powered electricity generation power plant
Determine installed capacity and calculates preset first simultaneity factor.
Abandonment provided in an embodiment of the present invention is rationed the power supply method, when realizing, first according to preset first simultaneity factor and wind
The opposite ratio of rationing the power supply of power plant, calculates separately the second simultaneity factor of each wind-powered electricity generation power plant；Then, according to the of each wind-powered electricity generation power plant
The installed capacity of two simultaneity factors and each wind-powered electricity generation power plant calculates separately the capacity of rationing the power supply of each wind-powered electricity generation power plant；And then according to every
The installed capacity of the ration the power supply capacity and each wind-powered electricity generation power plant of a wind-powered electricity generation power plant calculates the target power output of each wind-powered electricity generation power plant；And sentence
It is disconnected always to ration the power supply capacity with reference to whether capacity of always rationing the power supply is greater than target；It is rationing the power supply according to multiple wind-powered electricity generation power plant with reference to capacity of always rationing the power supply
What calculation of capacity obtained；Finally, always rationing the power supply capacity if being greater than target with reference to capacity of always rationing the power supply, according to the mesh of each wind-powered electricity generation power plant
Power is marked to ration the power supply.It is, scheme provided herein, when progress abandonment is rationed the power supply, for different wind-powered electricity generation electricity
Factory is provided with corresponding ratio of rationing the power supply, and preferably controls the target power output of each wind-powered electricity generation power plant and capacity of rationing the power supply, finally, with reference to
Capacity of always rationing the power supply be greater than target always ration the power supply capacity when, just according to each wind-powered electricity generation power plant target power output ration the power supply, ensure that limit
The accuracy of electric scheme.
To enable objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and appended by cooperation
Attached drawing is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows abandonment provided by the embodiment of the present invention and rations the power supply the basic flow chart of method；
It rations the power supply first optimized flow chart of method Fig. 2 shows abandonment provided by the embodiment of the present invention；
Fig. 3 show abandonment provided by the embodiment of the present invention ration the power supply method and a optimized flow chart；
Fig. 4 shows the basic module figure that abandonment provided by the embodiment of the present invention is rationed the power supply this.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
In the related technology, when progress abandonment is rationed the power supply, usually there are two types of ways, the first is using human intervention
Mode is rationed the power supply, i.e., when being rationed the power supply, staff tells by telephone specified according to set strategy of rationing the power supply
Wind-powered electricity generation power plant rations the power supply；Second is that software automatically controls, i.e. software is automatically right after collecting power grid related data
Data are analyzed, and then, generate strategy of rationing the power supply, and control each wind-powered electricity generation power plant according to strategy of rationing the power supply.
Whether which kind of above-mentioned mode, core are all to determine strategy of rationing the power supply, i.e., which kind of each wind-powered electricity generation power plant should use
Working method works, but present inventor has found, determines that the mode for strategy of rationing the power supply is not reasonable at present.
In turn, as shown in Figure 1, rationing the power supply method this application provides a kind of abandonment, comprising:
S101 calculates separately each wind-powered electricity generation power plant according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant
The second simultaneity factor；
S102 is calculated separately every according to the installed capacity of the second simultaneity factor of each wind-powered electricity generation power plant and each wind-powered electricity generation power plant
The capacity of rationing the power supply of a wind-powered electricity generation power plant；
S103 calculates each wind-powered electricity generation according to the installed capacity of the ration the power supply capacity and each wind-powered electricity generation power plant of each wind-powered electricity generation power plant
The target of power plant is contributed；
S104 judges always ration the power supply capacity with reference to whether capacity of always rationing the power supply is greater than target；It is according to more with reference to capacity of always rationing the power supply
A wind-powered electricity generation power plant rations the power supply what calculation of capacity obtained；
S105, if always rationing the power supply capacity with reference to capacity always is rationed the power supply greater than target, according to the target power output of each wind-powered electricity generation power plant
It rations the power supply.
In step S101, simultaneity factor is referred to: in the power system, maximum of the sum of the maximum value of load always greater than sum
Value, this is because each user is unlikely while reflecting this relationship such as not in the maximum value that a moment reaches electricity consumption
A coefficient be thus referred to as simultaneity factor, also referred to as simultaneously rate of load condensate.The first simultaneity factor herein is one pre-set
Reference value, in specific implementation, user can adjust the size of first simultaneity factor according to specific circumstances.
The opposite ratio of rationing the power supply of wind-powered electricity generation power plant, refers in general, the strategy of rationing the power supply of different wind-powered electricity generation power plant is different, root
For be different wind-powered electricity generation power plant ration the power supply capacity and target power output is usually to have certain difference.Opposite ratio of rationing the power supply herein
Example, can should reflect this difference to a certain extent, also, the opposite ratio of rationing the power supply should be the different power plant of a reaction it
Between ration the power supply capacity relative value, or between different power plant target processing relative value parameter.In general, the opposite limit of wind-powered electricity generation power plant
Electric ratio is with the history working condition of wind-powered electricity generation power plant related, for example the generated energy completed of last monthly plan and is actually accomplished
Generated energy, the previous day wind-powered electricity generation power plant can codetermine the opposite ratio of rationing the power supply to the implementation deviation situation for target power output of rationing the power supply
Example, it is herein, opposite to ration the power supply ratio it can be appreciated that deviation ratio of rationing the power supply.
In step S101, the second simultaneity factor is obtained after increasing and decreasing scheduled deviation ratio of rationing the power supply on the basis of the first simultaneity factor
It arrives, the result which is reflected.
In step S102, the capacity of rationing the power supply of wind-powered electricity generation power plant is usually according to the installed capacity of the wind-powered electricity generation power plant and wind-powered electricity generation electricity
What the difference of the target power output of factory determined.In the case of certain, the numerical value of the capacity of rationing the power supply of wind-powered electricity generation power plant can be exactly installed capacity-
Target power output.
In step S103, the target power output of wind-powered electricity generation power plant is usually according to the installed capacity of the wind-powered electricity generation power plant and wind-powered electricity generation electricity
What the second simultaneity factor of factory determined.In the case of certain, the numerical value of the target power output of wind-powered electricity generation power plant can be exactly the wind-powered electricity generation power plant
Second simultaneity factor * installed capacity.
In step S104, judges whether to be greater than with reference to capacity of always rationing the power supply target and always ration the power supply the purpose of capacity, mainly determine
Whether final purpose of rationing the power supply can achieve using this mode of rationing the power supply, if can achieve, i.e., with reference to always ration the power supply capacity whether
Always rationing the power supply greater than target, (target capacity of always rationing the power supply is predetermined a target value to capacity, and target capacity of always rationing the power supply is equal to
The active power total amount of downward needed for making regional power grid frequency retrieval to 50Hz), then can using allow each wind-powered electricity generation power plant according to
The target power output of calculated each wind-powered electricity generation power plant carrys out work in step S103, and then completes abandonment and ration the power supply.The calculated mesh
Mark power i.e. strategy that abandonment is rationed the power supply.
The target of wind-powered electricity generation power plant can be contributed and be sent respectively to each power plant when specific implementation by step S105,
It works so that each wind-powered electricity generation power plant is handled according to corresponding target.
More specifically, when realizing, the target of wind-powered electricity generation electric field can be contributed after carrying out Security Checking, is instructed as AGC
Each wind-powered electricity generation electric field is issued to by power dispatch data network to execute.The wherein Security Checking of the target power output of each wind-powered electricity generation electric field, packet
Contain: the verification of control command dead zone, the verification of maximal regulated increment and unit adjust limit value verification.Only these three verifications pass through,
Target can just be contributed and be sent to each wind-powered electricity generation electric field.
When specific implementation, the first simultaneity factor can be an empirical value (at this point, when executing step S101 every time, the
The numerical value of one simultaneity factor is all constant), be also possible to be calculated according to certain parameters (at this point, executing step every time
When S101, the numerical value of the first simultaneity factor is possible changed).
Specifically, being side provided herein the case where being calculated according to certain parameters for the first simultaneity factor
Method calculates by the way of following, i.e., as shown in figure 3, method provided herein, further includes before step S101
Following steps:
S301, according to wind-powered electricity generation power plant, always power output, demand are rationed the power supply total specified installed capacity meter of total amount and wind-powered electricity generation power plant in real time
Calculate preset first simultaneity factor.
Specifically, the first simultaneity factor can be calculated according to following formula:
Wherein, fxFor the first simultaneity factor, PIt is realFor wind-powered electricity generation power plant always in real time contribute (active power), by power plant it is real-time on send to
Power dispatch data network, PxIt rations the power supply total amount for demand, even if active power total amount needed for frequency retrieval to 50Hz, by regional power grid
Frequency characteristic coefficient is converted to obtain, PFaceFor total specified installed capacity.Wherein, total specified installed capacity is the volume of each wind-powered electricity generation power plant
Determine the sum of installed capacity.
In order to improve the order of accuarcy of calculating, abandonment sequence can be introduced, abandonment sequence is according to each wind-powered electricity generation power plant
What generated energy performance determined, generated energy performance is better, then ranking is more forward, conversely, then more rearward.It is more specific next
It says, the position that the higher wind-powered electricity generation power plant of electricity completion rate should be forward in abandonment sequence；According to electricity and the super generating electricity of rationing the power supply
Situation responds the position that poor wind-powered electricity generation power plant should be forward in abandonment sequence to instruction when rationing the power supply；According to station environmental protection, wind
Store up the position that the various factors such as joint, electricity price should be forward in abandonment sequence by the poor wind-powered electricity generation power plant of economy.
The deviation ratio of rationing the power supply of the more forward wind-powered electricity generation power plant of ranking is smaller, and the deviation ratio of rationing the power supply of ranking more rearward is bigger.In general,
Ranking is 0 in the first wind-powered electricity generation electric field deviation ratio of rationing the power supply, and ranking is 20% in the wind-powered electricity generation electric field of last bit deviation ratio of rationing the power supply.It is preferred that
, in abandonment sequence, according to sequence (by ranking the first to the last sequence) again front to back, the limit of each wind-powered electricity generation power plant
Electric deviation ratio can form arithmetic progression.It is, the adjacent wind-powered electricity generation power plant of any two ranking rations the power supply partially in abandonment sequence
The difference of poor ratio is equal.
Specifically, ranking of the wind-powered electricity generation power plant in abandonment sequence is calculated according to following parameter: plan yesterday
Electricity, yesterday actually accomplish electricity, this monthly plan electricity, this month actually accomplish electricity, this month rations the power supply electricity, this month super generating electricity
With scheduled punitive parameter.Punitive parameter herein can be according to whether wind-powered electricity generation power plant completes groundwork amount, if
There is violation operation to determine.
When specific implementation, the electricity performance on the day before each wind-powered electricity generation power plant can be counted after daily 0 point, obtains new one
The abandonment of wheel is sorted.
In turn, it when execution determines and rations the power supply deviation ratio step, can be realized according to following formula:
In formula, Kn is deviation ratio of rationing the power supply, and n is ranking of the specified wind-powered electricity generation electric field in abandonment sequence, and N is wind power plant
Sum.K is coefficient (usually adjustable), and by taking K=0.2 as an example, using above-mentioned formula, ranking can be obtained in the first wind-powered electricity generation electricity
Field ration the power supply deviation ratio be 0, ranking the wind-powered electricity generation electric field of last bit ration the power supply deviation ratio be 20%.
It rations the power supply partially corresponding to different rankings it is, wind-powered electricity generation power plant should represent in abandonment sequence with respect to the ratio of rationing the power supply
Poor ratio.
After the deviation ratio of rationing the power supply that each wind-powered electricity generation power plant has been determined, so that it may according to the deviation ratio of rationing the power supply of each wind-powered electricity generation power plant
With preset first simultaneity factor, the second simultaneity factor of each wind-powered electricity generation power plant is calculated separately, particularly for a specified wind-powered electricity generation
For power plant, the second simultaneity factor can be equal to the first simultaneity factor and the sum of deviation ratio of rationing the power supply.
It is, as shown in Fig. 2, step S101, according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant,
Calculate separately the second simultaneity factor of each wind-powered electricity generation power plant, comprising:
S1011 is counted respectively according to the opposite ratio of rationing the power supply of ranking and wind-powered electricity generation power plant of each wind-powered electricity generation power plant in abandonment sequence
Calculate the deviation ratio of rationing the power supply of each wind-powered electricity generation power plant；The opposite ratio of rationing the power supply of wind-powered electricity generation power plant is for indicating that different ranking institutes are right in abandonment sequence
The deviation ratio of rationing the power supply answered；
S1012 calculates separately each wind-powered electricity generation according to ration the power supply deviation ratio and preset first simultaneity factor of each wind-powered electricity generation power plant
Second simultaneity factor of power plant.
In some cases, after having calculated target power output, subsequent meter directly can't be carried out using target processing
It calculates, mainly to guarantee fairness of rationing the power supply, avoids the occurrence of part wind-powered electricity generation power plant and ration the power supply and (subtract power output instruction), part wind-powered electricity generation power plant is not
The situation rationed the power supply and (increase power output instruction).
In turn, in scheme provided herein, after target power output has been calculated, it is also necessary to judge wind-powered electricity generation power plant
Target power output (carry out abandonment ration the power supply after processing) whether be greater than target wind-powered electricity generation power plant real-time power output, then determine again it is subsequent such as
Where reason.
Specifically, method provided herein, in ration the power supply capacity and each wind-powered electricity generation electricity according to each wind-powered electricity generation power plant
The installed capacity of factory, calculate each wind-powered electricity generation power plant target power output after, further includes:
Judge whether the target power output of target wind-powered electricity generation power plant is greater than the real-time power output of target wind-powered electricity generation power plant；
If the target power output of target wind-powered electricity generation power plant is not more than the real-time power output of target wind-powered electricity generation power plant, judgement ginseng is thened follow the steps
It examines capacity of always rationing the power supply and whether is greater than target and always ration the power supply capacity.
And if the target power output of target wind-powered electricity generation power plant is greater than the real-time power output of target wind-powered electricity generation power plant, according to target wind
The real-time power output of power plant and preset first coefficient of reduction recalculate the target power output of target wind-powered electricity generation power plant.
By the deterministic process, participates in whole wind-powered electricity generation power plant during power grid rations the power supply, guarantee the fairness rationed the power supply, and protect
That contributes that lesser wind-powered electricity generation power plant will not occur contributing after its wind-force is sufficient when confirmation sharp rises, and leads to mains frequency
It is out-of-limit again.
Wherein, the first coefficient of reduction is usually the constant pre-set, and step is according to target wind-powered electricity generation power plant
Real-time power output and preset first coefficient of reduction recalculate the target power output of target wind-powered electricity generation power plant, refer to continuing after execution
Before step S105, need to say that the numerical value of target wind-powered electricity generation power plant contributed in real time is turned down.For example, can be according to certain drawdown ratio
Example is contributed to reduce the real-time power output of target wind-powered electricity generation power plant as the target of the target wind-powered electricity generation power plant.
Specifically such as, the target power output of new calculated target wind-powered electricity generation power plant can be equal to the real-time power output of target wind-powered electricity generation power plant
Multiplied by 0.9.I.e. this 0.9 be exactly target wind-powered electricity generation power plant the first coefficient of reduction contributed in real time.
In general, first coefficient of reduction can choose 0.9 or 0.8 in this way less than 1, and it is greater than 0 number.
The execution condition of step S105 is always to ration the power supply capacity with reference to capacity always is rationed the power supply greater than target, but when referring to appearance of always rationing the power supply
Amount is less than target and always rations the power supply capacity, just illustrates that the current scheme of rationing the power supply is non-serviceable.At this time, it may be necessary to the first simultaneity factor into
Row adjustment, then re-execute the steps S101.
It is, method provided herein further include:
If always rationing the power supply capacity with reference to capacity always is rationed the power supply less than target, preset first is adjusted together using the second coefficient of reduction
When rate, and re-execute the steps according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant, calculate separately each wind
Second simultaneity factor of power plant.
Similar with the first coefficient of reduction, the purpose of the second coefficient of reduction is also to reduce numerical value, the second coefficient of reduction institute
The object of diminution is the first simultaneity factor, for example, the first simultaneity factor can be reduced 1%-2% or so every time.
Method provided by the present invention can be in the case where not being transformed existing wind-powered electricity generation point field device, according to the opposite of setting
Ratio of rationing the power supply and total amount of rationing the power supply improve ration the power supply stability and fairness by introducing abandonment sequence.Specifically, mainly from
The characteristics of lower aspect embodies this programme:
1) individual difference (electricity performance, economy, Performance Assessment etc.) for considering wind-powered electricity generation field of points, by each wind power plant
Abandonment sequence is carried out, the more forward wind-powered electricity generation power plant of tagmeme rations the power supply, and higher (tagmeme is more forward, and deviation ratio of rationing the power supply is smaller, and target goes out for rate
Power is smaller, and it is big to represent its amount of rationing the power supply, that is, rate height of rationing the power supply), the ratio of rationing the power supply accordingly undertaken is bigger.
2) abandonment sequence in, the difference of the deviation ratio of rationing the power supply of the adjacent wind-powered electricity generation power plant of any two ranking be it is equal,
So that wind-powered electricity generation power plant can stablize, quickly complete task of always rationing the power supply when progress abandonment is rationed the power supply.
3) when with reference to always ration the power supply capacity less than target always ration the power supply capacity when, with certain amplitude the first simultaneity factor of adjustment so that
Scheme takes into account economy and safety.
It corresponds to the above method, present invention also provides a kind of abandonment electricity-limiting devices, as shown in Figure 4, comprising:
First computing module 401, for being counted respectively according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant
Calculate the second simultaneity factor of each wind-powered electricity generation power plant；
Second computing module 402, for according to the second simultaneity factor of each wind-powered electricity generation power plant and the installation of each wind-powered electricity generation power plant
Capacity calculates separately the capacity of rationing the power supply of each wind-powered electricity generation power plant；
Third computing module 403, the installation for ration the power supply capacity and each wind-powered electricity generation power plant according to each wind-powered electricity generation power plant are held
Amount calculates the target power output of each wind-powered electricity generation power plant；
First judgment module 404 is always rationed the power supply capacity for judging whether to be greater than with reference to capacity of always rationing the power supply target；With reference to total limit
Capacitance is to ration the power supply what calculation of capacity obtained according to multiple wind-powered electricity generation power plant；
Control module 405 is used for if always rationing the power supply capacity with reference to capacity always is rationed the power supply greater than target according to each wind-powered electricity generation power plant
Target power output ration the power supply.
Preferably, further includes:
4th computing module, for always power output, demand to be rationed the power supply the total value of total amount and wind-powered electricity generation power plant in real time according to wind-powered electricity generation power plant
Determine installed capacity and calculates preset first simultaneity factor.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of the description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be through some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme
's.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
- A kind of method 1. abandonment is rationed the power supply characterized by comprisingAccording to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant, the second of each wind-powered electricity generation power plant is calculated separately simultaneously Rate；According to the installed capacity of the second simultaneity factor of each wind-powered electricity generation power plant and each wind-powered electricity generation power plant, each wind-powered electricity generation power plant is calculated separately Capacity of rationing the power supply；According to the installed capacity of the ration the power supply capacity and each wind-powered electricity generation power plant of each wind-powered electricity generation power plant, the target of each wind-powered electricity generation power plant is calculated Power output；Judge always ration the power supply capacity with reference to whether capacity of always rationing the power supply is greater than target；It is according to multiple wind-powered electricity generation power plant with reference to capacity of always rationing the power supply Ration the power supply what calculation of capacity obtained；If described always ration the power supply capacity with reference to capacity always is rationed the power supply greater than target, contributes and limited according to the target of each wind-powered electricity generation power plant Electricity.
- 2. the method according to claim 1, wherein further include:According to wind-powered electricity generation power plant always in real time power output, demand ration the power supply total amount and wind-powered electricity generation power plant total specified installed capacity calculate it is described default The first simultaneity factor.
- 3. the method according to claim 1, wherein being limited according to preset first simultaneity factor and wind-powered electricity generation power plant are opposite Electric ratio calculates separately the second simultaneity factor of each wind-powered electricity generation power plant, comprising:According to ranking and wind-powered electricity generation power plant opposite ration the power supply ratio of each wind-powered electricity generation power plant in abandonment sequence, each wind-powered electricity generation is calculated separately The deviation ratio of rationing the power supply of power plant；The opposite ratio of rationing the power supply of wind-powered electricity generation power plant is rationed the power supply partially corresponding to different rankings in abandonment sequence for indicating Poor ratio；According to ration the power supply deviation ratio and preset first simultaneity factor of each wind-powered electricity generation power plant, the second of each wind-powered electricity generation power plant is calculated separately Simultaneity factor.
- 4. the method according to claim 1, wherein in ration the power supply capacity and each wind according to each wind-powered electricity generation power plant The installed capacity of power plant, calculate each wind-powered electricity generation power plant target power output after, further includes:Judge whether the target power output of target wind-powered electricity generation power plant is greater than the real-time power output of target wind-powered electricity generation power plant；If the target power output of target wind-powered electricity generation power plant is not more than the real-time power output of target wind-powered electricity generation power plant, judgement is thened follow the steps with reference to total Whether capacity of rationing the power supply, which is greater than target, is always rationed the power supply capacity.
- 5. according to the method described in claim 4, it is characterized in that, the method also includes:If the target power output of target wind-powered electricity generation power plant is greater than the real-time power output of target wind-powered electricity generation power plant, according to the reality of target wind-powered electricity generation power plant When power output and preset first coefficient of reduction recalculate target wind-powered electricity generation power plant target power output.
- 6. the method according to claim 1, wherein the method also includes:If described always ration the power supply capacity with reference to capacity always is rationed the power supply less than target, preset first is adjusted together using the second coefficient of reduction When rate, and re-execute the steps according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant, calculate separately each wind Second simultaneity factor of power plant.
- 7. the method according to claim 1, wherein ranking of the wind-powered electricity generation power plant in abandonment sequence is according to following What parameter was calculated: yesterday plan electricity, yesterday actually accomplishes electricity, this monthly plan electricity, this month actually accomplish electricity, this The moon rations the power supply electricity, this month super generating electricity and scheduled punitive parameter.
- 8. it rations the power supply the method according to claim 1, wherein contributing according to the target of each wind-powered electricity generation power plant, Include:The target power output of wind-powered electricity generation power plant is sent to each power plant respectively, so that each wind-powered electricity generation power plant is handled according to corresponding target It works.
- 9. a kind of abandonment electricity-limiting device characterized by comprisingFirst computing module, for calculating separately each according to the opposite ratio of rationing the power supply of preset first simultaneity factor and wind-powered electricity generation power plant Second simultaneity factor of wind-powered electricity generation power plant；Second computing module, for dividing according to the second simultaneity factor of each wind-powered electricity generation power plant and the installed capacity of each wind-powered electricity generation power plant The capacity of rationing the power supply of each wind-powered electricity generation power plant is not calculated；Third computing module is calculated for the installed capacity according to the ration the power supply capacity and each wind-powered electricity generation power plant of each wind-powered electricity generation power plant The target of each wind-powered electricity generation power plant is contributed；First judgment module is always rationed the power supply capacity for judging whether to be greater than with reference to capacity of always rationing the power supply target；With reference to capacity of always rationing the power supply It is to ration the power supply what calculation of capacity obtained according to multiple wind-powered electricity generation power plant；Control module is used for if described always ration the power supply capacity with reference to capacity always is rationed the power supply greater than target according to each wind-powered electricity generation power plant Target power output is rationed the power supply.
- 10. device according to claim 9, which is characterized in that further include:4th computing module, for always power output, demand to be rationed the power supply total specified dress of total amount and wind-powered electricity generation power plant in real time according to wind-powered electricity generation power plant Preset first simultaneity factor described in machine calculation of capacity.
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