CN109494763A - A kind of battery participation wind-powered electricity generation fluctuation suppressing method - Google Patents
A kind of battery participation wind-powered electricity generation fluctuation suppressing method Download PDFInfo
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- CN109494763A CN109494763A CN201811295413.1A CN201811295413A CN109494763A CN 109494763 A CN109494763 A CN 109494763A CN 201811295413 A CN201811295413 A CN 201811295413A CN 109494763 A CN109494763 A CN 109494763A
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- 230000005611 electricity Effects 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004146 energy storage Methods 0.000 claims abstract description 31
- 230000009194 climbing Effects 0.000 claims abstract description 16
- 230000007423 decrease Effects 0.000 claims abstract description 13
- 238000013178 mathematical model Methods 0.000 claims abstract description 4
- 238000004364 calculation method Methods 0.000 claims description 21
- 230000002401 inhibitory effect Effects 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 230000005684 electric field Effects 0.000 description 7
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/386—
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The invention belongs to intelligent power grid technology fields, and in particular to a kind of battery participates in wind-powered electricity generation and fluctuates suppressing method, be it is a kind of based on battery energy storage to the method for stabilizing wind-powered electricity generation fluctuation, effectively inhibit due to wind-powered electricity generation it is unstable caused by power network fluctuation.Including taking the wind power plant of different installed capacitys different control methods；Battery investment is carried out for the wind power plant of different installed capacitys or excision calculates；As 1 < s≤5, judge whether climbing puts into battery；When again to declineJudgement；As s > 5, judge whether climbing puts into battery, then decline is carried outJudgement；To wind-powered electricity generation climbing, the mathematical model for maintaining an equal level, cooperating inhibition wind power fluctuation under decline state with battery.The present invention carries out battery energy storage to the wind-powered electricity generation of wind power plant, in the larger situation of wind power output, carries out battery energy storage, dissolves part wind-powered electricity generation, guarantees grid stability.Solve due to the load becomes large conventional rack cannot meet the requirements when frequency fluctuation, guarantee that the power supply of electric system is reliable and stability.
Description
Technical field
The invention belongs to intelligent power grid technology fields, and in particular to a kind of battery participation wind-powered electricity generation fluctuation suppressing method, is one
Kind based on battery energy storage to stabilize wind-powered electricity generation fluctuation method, effectively inhibit due to wind-powered electricity generation it is unstable caused by power network fluctuation.
Background technique
In the continuous interconnected electric power system of current wind power generation, due to the uncertainty and fluctuation of wind-power electricity generation, to electricity
The safe and reliable operation of net brings more and more challenges, for the rule of the wind power plant access electric system of different installed capacitys
It is set to, in the wind power plant less than 30MW, maximum variable quantity is 20MW within 10min clock, and maximum variable quantity is within 1min clock
6MW, in the power plant that installed capacity is 30MW-150MW, the maximum variable quantity within 1min clock is no more than the 1/ of installed capacity
Maximum variable quantity within 5,10min clocks is no more than the 2/3 of installed capacity, in the wind power plant greater than 150MW, within 1min clock
Maximum rate of change be no more than 30MW, 100MW is no more than within 10min clock.Since the limitation that above-mentioned condition requires results in
In the biggish situation of Changes in weather, it is relatively difficult that wind power plant can reach grid-connected conditions, causes a large amount of wind-abandoning phenomenon.
Summary of the invention
The present invention is the influence basis in deficiency and wind power output fluctuation in view of the above technology to power grid operation
On, a kind of battery participation wind-powered electricity generation fluctuation suppressing method is proposed, is a kind of side for stabilizing wind power fluctuation based on battery energy storage
Method.Its purpose is to solve wind farm grid-connected the technical issues of generating a large amount of wind-abandoning phenomenons in the process.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of battery participation wind-powered electricity generation fluctuation suppressing method, comprising the following steps:
The wind power plant of step 1. pair difference installed capacity takes different control methods；
Step 2. carries out battery investment for the wind power plant of different installed capacitys or excision calculates, and guarantees to be directed to wind-powered electricity generation wave
Emotionally condition makes real-time judge, guarantees the security reliability of power system power supply；First to the wind power plant of different installed capacitys into
The limitation modeling of row condition:
It enables
In above formula: S indicates wind energy turbine set installed capacity judgement factor, g1Indicate wind power output mean change amount in one minute,
g10Indicate wind power output mean change amount in ten minutes；
Step 3. judges as 1 < s≤5, to whether climbing puts into battery；When again to declineJudgement；
Step 4. judges as s > 5, to whether climbing puts into battery, then carries out to declineJudgement；
Step 5. climbs to wind-powered electricity generation, maintains an equal level, cooperates the mathematical modulo for inhibiting wind power fluctuation under decline state with battery
Type.
The step 1 includes: to take the wind power plant of different installed capacitys different control methods, if the installation of wind power plant
Capacity is Pz, the real-time power output of wind power plant is acquired, if the current power output of wind power plant is Pd, the power output before one minute is
Pd1, the power output before ten minutes is Pd10。
The step 2 includes: to calculate for the wind power plant progress battery investment of different installed capacitys or excision, guarantees needle
Real-time judge is made to wind-powered electricity generation fluctuation situation, guarantees the security reliability of power system power supply；First to different installed capacitys
Wind power plant carries out condition limitation modeling:
It enables
In above formula: S indicates wind energy turbine set installed capacity judgement factor, g1Indicate wind power output mean change amount in one minute,
g10Indicate wind power output mean change amount in ten minutes；
As s≤1, judges whether wind-powered electricity generation climbing puts into battery, carry out firstJudgement,
If meeting condition, it will start to put into battery progress energy storage, following formula calculating, P carried out for the accumulator capacity of investmentdc1=2ln
(Pd-Pd1) P in formuladc1Indicate the battery energy storage capacity put into needed for meeting 1 minute undulate quantity of wind-powered electricity generation；If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected calculation of capacity, Pdc10=ln (Pd-Pd1), P in formuladc10Table
Show the battery energy storage capacity put into needed for meeting 10 minutes undulate quantities of wind-powered electricity generation, when being unsatisfactory for condition, does not need access battery；
In wind-powered electricity generation decline to whether putting into electric power storage tank discharge and judging, carry out firstSentence
It is disconnected, if meeting condition, investment battery will be started and discharged, following formula calculating, P are carried out for the accumulator capacity of investmentdc1=
2ln(Pd-Pd1)；If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected capacity
It calculates, Pdc10=2 (Pd-Pd1), when being unsatisfactory for condition, do not need access electric power storage tank discharge.
The step 3 includes: to judge whether climbing puts into battery, carry out first as 1 < s≤5Judgement will start to put into battery progress energy storage, the accumulator capacity of investment carried out if meeting condition
Following formula calculates, Pdc1=5ln (Pd-Pd1)；If being unsatisfactory for condition, carry outJudgement meets condition and carries out battery
Grid connection capacity calculates, Pdc10=4 (Pd-Pd1), when being unsatisfactory for condition, do not need access battery；
When again to declineJudgement will start investment battery and discharge if meeting condition, for
The accumulator capacity of investment carries out following formula calculating, Pdc1=5ln (Pd-Pd1)；If being unsatisfactory for condition, carry out
Judgement meets the condition and carries out storage battery grid-connected calculation of capacity, carries out discharge power Pdc10=4 (Pd-Pd1), it is unsatisfactory for condition
When, do not need access battery.
The step 4 includes: to judge whether climbing puts into battery, carry out first as s > 5Judgement will start to put into battery progress energy storage, for the accumulator capacity of investment if meeting condition
Following formula calculating is carried out,If being unsatisfactory for condition, carry outJudgement, meet condition into
The storage battery grid-connected calculation of capacity of row,When being unsatisfactory for condition, access battery is not needed；
Decline is carried out againJudgement will start investment battery and put if meeting condition
Electricity carries out following formula calculating for the accumulator capacity of investment,If being unsatisfactory for condition, carry outJudgement meets the condition and carries out storage battery grid-connected calculation of capacity,No
When meeting condition, does not need access battery and discharge.
The step 5 includes: to climb to wind-powered electricity generation, is maintained an equal level, and cooperates under decline state with battery and inhibits wind power fluctuation
Mathematical model, if having n less than the wind power plant of 30MW1It is a, there is 30MW < n2≤150MWn2It is a, there is n greater than 150MW3It is a；It is defeated
Entering amount is (n1+n2+n3)Pd1+(n1+n2+n3)Pd10。
A kind of battery participates in wind-powered electricity generation and fluctuates suppressing method, comprising:
The wind power plant of step 1. pair difference installed capacity takes different control methods, if the installed capacity of certain wind power plant is
Pz=500MW is acquired the real-time power output of wind power plant, if the current power output of wind power plant is Pd=300MW, before one minute
Power output be Pd1=305MW, the power output before ten minutes are Pd10=450MW；Carry out wind power output fluctuation situation and wind-powered electricity generation
Field capacity judgement, carries out power output control, to carry out the investment of batteries to store energy；
Step 2. carries out battery investment for the wind power plant of different installed capacitys or excision calculates, and guarantees to be directed to wind-powered electricity generation wave
Emotionally condition makes real-time judge, guarantees the security reliability of power system power supply；First to the wind power plant of different installed capacitys into
The limitation modeling of row condition；It is specifically calculated by process as follows:
S wind energy turbine set installed capacity judgement factor is 16.67, g in above formula1Indicate wind power output mean change amount in one minute
For 5MW, g10Indicate that wind power output mean change amount is -15MW in ten minutes, the above process does not need to carry out stabilizing for battery
Effect；
Step 3. is P when the installed capacity of certain wind power plantz=25MW is acquired the real-time power output of wind power plant, if wind
The current power output of electric field is Pd=20MW, the power output before one minute are Pd1=12MW, the power output before ten minutes are Pd10=
20MW；
To whether putting into battery and judging, carry out firstMeet condition, will start to put into battery progress energy storage, for investment
Accumulator capacity carries out following formula calculating, Pdc1=2ln (Pd-Pd1)=2ln8；So needing to carry out storage battery grid-connected, grid connection capacity
For 4ln4MW；
Step 4. is P when the installed capacity of certain wind power plantz=250MW is acquired the real-time power output of wind power plant, if wind
The current power output of electric field is Pd=150MW, the power output before one minute are Pd1=140MW, the power output before ten minutes are Pd10=
230MW；
As s=8.3 > 5, to whether putting into battery and judging, carry out firstIt is unsatisfactory for condition, investment battery is not needed and carries out energy storage, above formula is unsatisfactory for
Condition carries outJudgement,It is unsatisfactory for condition, is not required to
Access battery；
It carries out againIt calculates, so being unsatisfactory for condition, does not need to start to put into
Battery discharges, and carries out following formula calculating for the accumulator capacity of investment,It carries out down
Condition judgement is stated, is carried outJudgement, condition is not satisfied, carries out electric power storage
Pond grid connection capacity calculates, grid connection capacityAccess battery is not needed in summary to be put
Electricity；
Step 5. sets the installed capacity of certain wind power plant as Pz=120MW is acquired the real-time power output of wind power plant, if wind
The current power output of electric field is Pd=80MW, the power output before one minute are Pd1=40MW, the power output before ten minutes are Pd10=
50MW；So 1 s≤5 <, to whether putting into battery and judging, calculate firstIt is unsatisfactory for condition, investment battery is not needed and carries out energy storage,
Pdc1=0；It carries outJudgement, is unsatisfactory for condition, carries out storage battery grid-connected calculation of capacity,
Pdc10=0, it to sum up calculates and does not need access battery；
For step 6. to the overall calculation of above-mentioned wind power plant, obtaining final calculated result is (n1+n2+n3)Pd1+(n1+n2+
n3)Pd10=4ln 4MW；So the capacity for being currently incorporated to battery is 4ln4MW, current wind-powered electricity generation can effectively be inhibited to fluctuate.
The present invention has the following advantages and beneficial effects:
The present invention leads to the problem of a large amount of wind-abandoning phenomenons in the process wind farm grid-connected in the prior art, to wind power plant
Wind-powered electricity generation carries out battery energy storage, in the biggish situation of wind power output, carries out battery energy storage, dissolves part wind-powered electricity generation, guarantee power grid
Stability.When output of wind electric field is lower, battery is needed to discharge, fill up the phenomenon of wind power output deficiency, when wind-powered electricity generation goes out
When power is smaller, battery is discharged, solve due to the load becomes large conventional rack is unappeasable require when frequency fluctuation, protect
Demonstrate,proved electric system power supply is reliable and stability.
Detailed description of the invention
Understand for the ease of those of ordinary skill in the art and implement the present invention, with reference to the accompanying drawing and specific embodiment
The present invention is described in further detail, it is to be understood that protection scope of the present invention is not by the limit of specific embodiment
System.
Fig. 1 be battery of the present invention follow wind-powered electricity generation be incorporated to control figure；
Fig. 2 is that the present invention stabilizes wind-powered electricity generation undulated control flow chart.
Specific embodiment
The present invention is a kind of battery participation wind-powered electricity generation fluctuation suppressing method, comprising the following steps:
The wind power plant of step 1. pair difference installed capacity takes different control methods, if the installed capacity of wind power plant is
Pz, the real-time power output of wind power plant is acquired, if the current power output of wind power plant is Pd, the power output before one minute is Pd1, ten
Power output before minute is Pd10。
Step 2. carries out battery investment for the wind power plant of different installed capacitys or excision calculates, and guarantees to be directed to wind-powered electricity generation wave
Emotionally condition makes real-time judge, guarantees the security reliability of power system power supply.First to the wind power plant of different installed capacitys into
The limitation modeling of row condition.
It enables
In above formula: S indicates wind energy turbine set installed capacity judgement factor, g1Indicate wind power output mean change amount in one minute,
g10Indicate wind power output mean change amount in ten minutes.
As s≤1, judges whether wind-powered electricity generation climbing puts into battery, carry out firstJudgement,
If meeting condition, it will start to put into battery progress energy storage, following formula calculating, P carried out for the accumulator capacity of investmentdc1=2ln
(Pd-Pd1) P in formuladc1Indicate the battery energy storage capacity put into needed for meeting 1 minute undulate quantity of wind-powered electricity generation.If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected calculation of capacity, Pdc10=ln (Pd-Pd1), P in formuladc10Table
Show the battery energy storage capacity put into needed for meeting 10 minutes undulate quantities of wind-powered electricity generation, when being unsatisfactory for condition, does not need access battery.
In wind-powered electricity generation decline to whether putting into electric power storage tank discharge and judging, carry out firstSentence
It is disconnected, if meeting condition, investment battery will be started and discharged, following formula calculating, P are carried out for the accumulator capacity of investmentdc1=
2ln(Pd-Pd1).If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected capacity
It calculates, Pdc10=2 (Pd-Pd1), when being unsatisfactory for condition, do not need access electric power storage tank discharge.
Step 3. judges as 1 < s≤5, to whether climbing puts into battery, carries out firstSentence
It is disconnected, if meeting condition, it will start to put into battery progress energy storage, following formula calculating, P carried out for the accumulator capacity of investmentdc1=
5ln(Pd-Pd1).If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected calculation of capacity,
Pdc10=4 (Pd-Pd1), when being unsatisfactory for condition, do not need access battery.
When again to declineJudgement will start investment battery and discharge if meeting condition, for
The accumulator capacity of investment carries out following formula calculating, Pdc1=5ln (Pd-Pd1).If being unsatisfactory for condition, carry out
Judgement meets the condition and carries out storage battery grid-connected calculation of capacity, carries out discharge power Pdc10=4 (Pd-Pd1), it is unsatisfactory for condition
When, do not need access battery.
Step 4. judges as s > 5, to whether climbing puts into battery, carries out firstSentence
It is disconnected, if meeting condition, it will start to put into battery progress energy storage, following formula calculating carried out for the accumulator capacity of investment,If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected appearance
Amount calculates,When being unsatisfactory for condition, access battery is not needed.
Decline is carried out againJudgement will start investment battery and put if meeting condition
Electricity carries out following formula calculating for the accumulator capacity of investment,If being unsatisfactory for condition, carry outJudgement meets the condition and carries out storage battery grid-connected calculation of capacity,
When being unsatisfactory for condition, does not need access battery and discharge.
Step 5. climbs to wind-powered electricity generation, maintains an equal level, and cooperates the mathematical modulo for inhibiting wind power fluctuation under decline state with battery
Type, if the wind power plant less than 30MW has n1It is a, there is 30MW < n2≤150MWn2It is a, there is n greater than 150MW3It is a.Input quantity is,
(n1+n2+n3)Pd1+(n1+n2+n3)Pd10。
Embodiment 1:
The wind power plant of step 1. pair difference installed capacity takes different control methods, if the installed capacity of certain wind power plant is
Pz=500MW is acquired the real-time power output of wind power plant, if the current power output of wind power plant is Pd=300MW, before one minute
Power output be Pd1=305MW, the power output before ten minutes are Pd10=450MW.As shown in Figure 1, Fig. 1 be battery of the present invention with
Control figure is incorporated to wind-powered electricity generation.Wind power output is carried out by Fig. 1 and fluctuates situation and the judgement of wind power plant capacity, carries out power output control
System, to carry out the investment of batteries to store energy.
Step 2. carries out battery investment for the wind power plant of different installed capacitys or excision calculates, and guarantees to be directed to wind-powered electricity generation wave
Emotionally condition makes real-time judge, guarantees the security reliability of power system power supply.First to the wind power plant of different installed capacitys into
The limitation modeling of row condition.As shown in Fig. 2, Fig. 2 is that the present invention stabilizes wind-powered electricity generation undulated control flow chart.It is specifically calculated by flow chart
It is as follows:
S wind energy turbine set installed capacity judgement factor is 16.67, g in above formula1Indicate wind power output mean change amount in one minute
For 5MW, g10Indicate that wind power output mean change amount is -15MW in ten minutes, the above process does not need to carry out stabilizing for battery
Effect.
Step 3. is P when the installed capacity of certain wind power plantz=25MW is acquired the real-time power output of wind power plant, if wind
The current power output of electric field is Pd=20MW, the power output before one minute are Pd1=12MW, the power output before ten minutes are Pd10=
20MW。
To whether putting into battery and judging, carry out firstMeet condition, will start to put into battery progress energy storage, for investment
Accumulator capacity carries out following formula calculating, Pdc1=2ln (Pd-Pd1)=2ln8.So needing to carry out storage battery grid-connected, grid connection capacity
For 4ln4MW.
Step 4. is P when the installed capacity of certain wind power plantz=250MW is acquired the real-time power output of wind power plant, if wind
The current power output of electric field is Pd=150MW, the power output before one minute are Pd1=140MW, the power output before ten minutes are Pd10=
230MW
As s=8.3 > 5, to whether putting into battery and judging, carry out firstIt is unsatisfactory for condition, investment battery is not needed and carries out energy storage, above formula is unsatisfactory for
Condition carries outJudgement,It is unsatisfactory for condition.It is not required to
Access battery.
It carries out againIt calculates, so being unsatisfactory for condition, does not need to start to put into
Battery discharges, and carries out following formula calculating for the accumulator capacity of investment,It carries out down
Condition judgement is stated, is carried outJudgement, condition is not satisfied, carries out electric power storage
Pond grid connection capacity calculates, grid connection capacityAccess battery is not needed in summary to be put
Electricity.
Step 5. sets the installed capacity of certain wind power plant as Pz=120MW is acquired the real-time power output of wind power plant, if wind
The current power output of electric field is Pd=80MW, the power output before one minute are Pd1=40MW, the power output before ten minutes are Pd10=
50MW。So 1 s≤5 <, to whether putting into battery and judging, calculate firstIt is unsatisfactory for condition, investment battery is not needed and carries out energy storage, Pdc1
=0.It carries outJudgement, is unsatisfactory for condition, carries out storage battery grid-connected calculation of capacity, Pdc10
=0, it to sum up calculates and does not need access battery.
For step 6. to the overall calculation of above-mentioned wind power plant, obtaining final calculated result is (n1+n2+n3)Pd1+(n1+n2+
n3)Pd10=4ln 4MW.So the capacity for being currently incorporated to battery is 4ln4MW, current wind-powered electricity generation can effectively be inhibited to fluctuate.
Claims (7)
1. a kind of battery participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the following steps are included:
The wind power plant of step 1. pair difference installed capacity takes different control methods；
Step 2. carries out battery investment for the wind power plant of different installed capacitys or excision calculates, and guarantees to fluctuate feelings for wind-powered electricity generation
Condition makes real-time judge, guarantees the security reliability of power system power supply；Item is carried out to the wind power plant of different installed capacitys first
Part limitation modeling:
It enables
In above formula: S indicates wind energy turbine set installed capacity judgement factor, g1Indicate wind power output mean change amount in one minute, g10Table
Show wind power output mean change amount in ten minutes；
Step 3. judges as 1 < s≤5, to whether climbing puts into battery；When again to declineSentence
It is disconnected；
Step 4. judges as s > 5, to whether climbing puts into battery, then carries out to declineJudgement；
Step 5. climbs to wind-powered electricity generation, maintains an equal level, cooperates the mathematical model for inhibiting wind power fluctuation under decline state with battery.
2. a kind of battery according to claim 1 participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the step 1 includes:
Different control methods is taken the wind power plant of different installed capacitys, if the installed capacity of wind power plant is Pz, to the reality of wind power plant
When power output be acquired, if the current power output of wind power plant is Pd, the power output before one minute is Pd1, the power output before ten minutes is
Pd10。
3. a kind of battery according to claim 1 participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the step 2 includes:
Battery investment is carried out for the wind power plant of different installed capacitys or excision calculates, and guarantees to make in real time for wind-powered electricity generation fluctuation situation
Judgement, guarantees the security reliability of power system power supply；Condition limitation modeling is carried out to the wind power plant of different installed capacitys first:
It enables
In above formula: S indicates wind energy turbine set installed capacity judgement factor, g1Indicate wind power output mean change amount in one minute, g10Table
Show wind power output mean change amount in ten minutes；
As s≤1, judges whether wind-powered electricity generation climbing puts into battery, carry out firstJudgement, if full
Sufficient condition will start to put into battery progress energy storage, carry out following formula calculating, P for the accumulator capacity of investmentdc1=2ln (Pd-
Pd1) P in formuladc1Indicate the battery energy storage capacity put into needed for meeting 1 minute undulate quantity of wind-powered electricity generation；If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected calculation of capacity, Pdc10=ln (Pd-Pd1), P in formuladc10Table
Show the battery energy storage capacity put into needed for meeting 10 minutes undulate quantities of wind-powered electricity generation, when being unsatisfactory for condition, does not need access battery；
In wind-powered electricity generation decline to whether putting into electric power storage tank discharge and judging, carry out firstJudgement, if full
Sufficient condition, will start investment battery and discharges, and carry out following formula calculating, P for the accumulator capacity of investmentdc1=2ln (Pd-
Pd1)；If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected calculation of capacity,
Pdc10=2 (Pd-Pd1), when being unsatisfactory for condition, do not need access electric power storage tank discharge.
4. a kind of battery according to claim 1 participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the step 3 includes:
As 1 < s≤5, judges whether climbing puts into battery, carry out firstJudgement, if meeting condition,
It will start to put into battery progress energy storage, following formula calculating, P carried out for the accumulator capacity of investmentdc1=5ln (Pd-Pd1)；If
It is unsatisfactory for condition, is carried outJudgement meets condition and carries out storage battery grid-connected calculation of capacity, Pdc10=4 (Pd-Pd1),
When being unsatisfactory for condition, access battery is not needed；
When again to declineJudgement will start investment battery and discharge, for investment if meeting condition
Accumulator capacity carry out following formula calculating, Pdc1=5ln (Pd-Pd1)；If being unsatisfactory for condition, carry outJudgement,
Meet the condition and carry out storage battery grid-connected calculation of capacity, carries out discharge power Pdc10=4 (Pd-Pd1), when being unsatisfactory for condition, it is not required to
Access battery.
5. a kind of battery according to claim 1 participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the step 4 includes:
As s > 5, judges whether climbing puts into battery, carry out firstJudgement, if meeting item
Part will start to put into battery progress energy storage, carry out following formula calculating for the accumulator capacity of investment,
If being unsatisfactory for condition, carry outJudgement meets condition and carries out storage battery grid-connected calculation of capacity,When being unsatisfactory for condition, access battery is not needed；
Decline is carried out againJudgement will start investment battery and discharge if meeting condition, right
Following formula calculating is carried out in the accumulator capacity of investment,If being unsatisfactory for condition, carry outJudgement meets the condition and carries out storage battery grid-connected calculation of capacity,No
When meeting condition, does not need access battery and discharge.
6. a kind of battery according to claim 1 participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the step 5 includes:
Climb to wind-powered electricity generation, maintain an equal level, cooperate the mathematical model for inhibiting wind power fluctuation under decline state with battery, if less than 30MW's
Wind power plant has n1It is a, there is 30MW < n2≤150MWn2It is a, there is n greater than 150MW3It is a；Input quantity is (n1+n2+n3)Pd1+(n1+
n2+n3)Pd10。
7. a kind of battery according to claim 1 participates in wind-powered electricity generation and fluctuates suppressing method, it is characterized in that: the described method includes:
The wind power plant of step 1. pair difference installed capacity takes different control methods, if the installed capacity of certain wind power plant is Pz=
500MW is acquired the real-time power output of wind power plant, if the current power output of wind power plant is Pd=300MW, going out before one minute
Power is Pd1=305MW, the power output before ten minutes are Pd10=450MW；It carries out wind power output fluctuation situation and wind power plant is held
Amount judgement, carries out power output control, to carry out the investment of batteries to store energy；
Step 2. carries out battery investment for the wind power plant of different installed capacitys or excision calculates, and guarantees to fluctuate feelings for wind-powered electricity generation
Condition makes real-time judge, guarantees the security reliability of power system power supply；Item is carried out to the wind power plant of different installed capacitys first
Part limitation modeling；It is specifically calculated by process as follows:
S wind energy turbine set installed capacity judgement factor is 16.67, g in above formula1Indicate that wind power output mean change amount is in one minute
5MW, g10Indicate in ten minutes that wind power output mean change amount is -15MW, the above process does not need to carry out battery to stabilize work
With；
Step 3. is P when the installed capacity of certain wind power plantz=25MW is acquired the real-time power output of wind power plant, if wind power plant
Current power output is Pd=20MW, the power output before one minute are Pd1=12MW, the power output before ten minutes are Pd10=20MW；
To whether putting into battery and judging, carry out firstMeet condition, will start to put into battery progress energy storage, for investment
Accumulator capacity carries out following formula calculating, Pdc1=2ln (Pd-Pd1)=2ln8；So needing to carry out storage battery grid-connected, grid connection capacity
For 4ln4MW；
Step 4. is P when the installed capacity of certain wind power plantz=250MW is acquired the real-time power output of wind power plant, if wind power plant
It is current power output be Pd=150MW, the power output before one minute are Pd1=140MW, the power output before ten minutes are Pd10=
230MW；
As s=8.3 > 5, to whether putting into battery and judging, carry out firstIt is unsatisfactory for condition, investment battery is not needed and carries out energy storage, above formula is unsatisfactory for
Condition carries outJudgement,It is unsatisfactory for condition, is not required to
Access battery；
It carries out againIt calculates, so being unsatisfactory for condition, does not need to start to put into electric power storage
Pond is discharged, and carries out following formula calculating for the accumulator capacity of investment,Carry out following
Part judgement, carries outJudgement, condition is not satisfied, carries out battery simultaneously
Net calculation of capacity, grid connection capacityAccess battery is not needed in summary to discharge；
Step 5. sets the installed capacity of certain wind power plant as Pz=120MW is acquired the real-time power output of wind power plant, if wind power plant
It is current power output be Pd=80MW, the power output before one minute are Pd1=40MW, the power output before ten minutes are Pd10=50MW；So 1 s≤5 <, to whether putting into battery and judging, calculate firstIt is unsatisfactory for condition, investment battery is not needed and carries out energy storage,
Pdc1=0；It carries outJudgement, is unsatisfactory for condition, carries out storage battery grid-connected calculation of capacity,
Pdc10=0, it to sum up calculates and does not need access battery；
For step 6. to the overall calculation of above-mentioned wind power plant, obtaining final calculated result is (n1+n2+n3)Pd1+(n1+n2+n3)Pd10
=4ln4MW；So the capacity for being currently incorporated to battery is 4ln4MW, current wind-powered electricity generation can effectively be inhibited to fluctuate.
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