CN106505618A - The unit control drop damage method of wind power integration electrical network - Google Patents
The unit control drop damage method of wind power integration electrical network Download PDFInfo
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Abstract
The invention discloses the unit control drop damage method of wind power integration electrical network, with wastage reducing and energy saving as target, control is coordinated to control unit, to reduce network loss, on the basis of existing normal power supplies, high energy load, the grid-connected position of wind park and capacity data, corresponding units division is carried out to each wind park, normal power supplies and high energy load, the power coordination of normal power supplies and high energy load and between unit in unit is reasonably carried out according to wind power output situation, is down to network loss as far as possible minimum.
Description
Technical field
The present invention relates to renewable energy utilization and dispatching technique field, in particular it relates to the unit of wind power integration electrical network
Control drop damage method.
Background technology
Extensive new forms of energy are developed rapidly in recent years, effectively alleviate energy shortage problem, but large-scale wind power is simultaneously simultaneously
Net causes to access grid loss surge, brings new challenge to economy operation of power grid.Generally build near consideration large-scale wind power
There is high energy enterprise, and the process characteristic of high energy industry determines that its dependence to power quality is less, can with good
Adjust, can break feature, can effectively respond and stabilize large-scale wind power fluctuation impact that network loss is caused.Accordingly, it is considered to
High energy load is included range of accommodation, He Yuan joint drops is carried out and is damaged.
Content of the invention
It is an object of the invention to, for the problems referred to above, the unit control drop damage method of wind power integration electrical network is proposed, so that
Network loss is reduced to minimum, and the regenerative resource management and running for electrical network provide reference.
For achieving the above object, the technical solution used in the present invention is：The unit control drop damage method of wind power integration electrical network,
Mainly include：
Step 1：According to geographical diagram, unit is controlled to wind park, normal power supplies and high energy load and is drawn
Point；
Step 2：According to each control unit wind park predictive value Pwi+jQwi, sending end normal power supplies planned value PGi0+jQGi0, high
Carry can load put into operation capacity PLi0+jQLi0, receiving end normal power supplies planned value PGi1+jQGi1With carry can load put into operation capacity PLi1+
jQGi1, determine the adjustable extent and regulation order of normal power supplies and high energy load；
Step 3:With loss minimization as target, control is coordinated to each control unit, obtain the list of wind power integration electrical network
Unit's control drop damage method.
Further, control unit described in step 1 includes two nodes, defines side of the wind power stream for control unit
To control unit is divided and specifically included, and define wind power to flow out node according to control unit direction is control unit sending end, separately
One node is control unit receiving end,
Described control unit sending end includes wind park Pwi+jQwi, normal power supplies PGi0+jQGi0With high energy load PLi0+
jQLi0；
Described control unit receiving end includes normal power supplies PGi1+jQGi1With high energy load PLi1+jQGi1；If being terminated with wind
Power plant, then be incorporated to next stage control unit sending end by the wind park.
Further, the determination of adjustable extent is specifically included,
Normal power supplies unit output bound is constrained：
PG_mmin≤PG_m≤PG_mmax(1)
In formula：PG_mFor m platform unit outputs；PG_mminFor m platform unit output lower limits；PG_mmaxFor m platform unit outputs
The upper limit；
High energy load adjustment is constrained：
The switching period of kth kind high energy load is constrained to：The persistent period of rise is not less thanIt is less thanMathematical notation is as follows：
In formula：For the adjustment state amount of high energy load k, it is discrete variable, 0 or 1 can only be taken.Take 0 representative not going up
Adjust, take 1 representative rise；
Adjust count constraint
In formula：MkFor maximum allowable switching frequencies of the high energy load k within dispatching cycle.
Further, the determination of regulation order includes,
As in controlled plant confrontation unit between unit, controlled plant increases transmission distance, so being controlled list first
Adjust in first；In control unit, the determination of regulation order is specifically included：
Sending end source lotus regulated quantity P0=| PG0|+|PL0|, ignore the idle impact to network loss of wind-powered electricity generation, network loss after sending end regulation
For：
In formula：P01+jQ01For line transmission power；U750For 750 high voltage side of transformer voltages；Rl01For transmitting line resistance.
Receiving end source lotus regulated quantity P1=| PG1|+|PL1|, after receiving end is adjusted, network loss is：
Sending end receiving end regulated quantity is identical, i.e. P0=P1When, made the difference by formula (6) and formula (5) and obtain receiving end regulation and sending end
Adjust drop and damage difference：
From formula (7), PwWhen ≠ 0, Δ P ＞ 0, sending end regulating effect more preferably, therefore in control unit, send by preferential regulation
End,
If normal power supplies, the descending of high energy load power loss sensitivity are (D in sending endi01,Di02,…,Di0N) N
The normal power supplies for adjusting, high energy load sum are participated in for control unit i sending end, with vector (Pi01,Pi02,…,Pi0N)TRepresent
Matching convention power supply, high energy Load Regulation power, then sending end drop damage value be：
Secondly to control unit receiving end according to being adjusted with control unit sending end identical control method：
If normal power supplies, the descending of high energy load power loss sensitivity are (D in receiving endi11,Di12,…,Di1M) M
The normal power supplies for adjusting, high energy load sum are participated in for control unit i receiving end, receiving end routine are adjusted according to power loss sensitivity descending
Power supply, high energy load；With vector (Pi11,Pi12,…,Pi1M)TMatching convention power supply, high energy Load Regulation power is represented, then
Damage value drops in receiving end：
Further, specifically include in step 3：According to each control unit wind park predictive value Pwi+jQwi, wind-powered electricity generation monthly average
Exert oneself ratio η, wind park is determined in additional issue state or subtract hair-like state；
If wind park is in additional issue state, concrete regulating step includes：
Step 31：If wind park calculates the network loss spirit of sending end normal power supplies, high energy Load Regulation amount in additional issue state
Sensitivity, reduces sending end normal power supplies and exerts oneself P according to sensitivity order of successively decreasingGi0+jQGi0, increase high energy load capacity PLi0+jQLi0,
Sending end regulated quantity absolute value sum is equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0| when, adjust and stop；
Step 32：If wind park is in additional issue state, sending end regulating power is used up, and sending end regulated quantity absolute value sum is still little
In wind-powered electricity generation additional issue amount, then receiving end normal power supplies, the power loss sensitivity of high energy Load Regulation amount is calculated, is successively decreased sequentially according to sensitivity
Reduce receiving end normal power supplies to exert oneself PGi1+jQGi1, increase high energy load capacity PLi1+jQLi1, in control unit, regulated quantity is absolute
Value sum is equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0|+|ΔPGi1|+|ΔPLi1| when, adjust and stop；
Step 33：If wind-powered electricity generation additional issue, receiving end regulating power uses up, can not still meet in control unit regulated quantity absolute value it
With equal to wind-powered electricity generation additional issue amount, then adjust and close on control unit sending end, increase due to closing on controlled plant in control unit confrontation unit
Big transmission distance, adjusting efficiency reduces, so arranging in lower sensitivity limit, control unit, to close on control unit regulated quantity exhausted
To being worth, sum is equal to wind-powered electricity generation additional issue amount or institute's adjusted position sensitivity stops when being less than limit value；In described control unit, regulated quantity is absolute
Value is equal to wind-powered electricity generation additional issue amount i.e. with control unit regulated quantity absolute value sum is closed on：
The n be close on control unit i and sending end sensitivity more than limit value control unit number；
If, in hair-like state is subtracted, network loss is higher than monthly average network loss, repeat step 31- step 33 for wind park；Network loss is less than the moon
Average loss, on the basis of power system active balance is met, do not apply drop damage regulation measure, because wind-powered electricity generation subtract send out when electricity consumption into
This increase, appropriate excision high energy load.
The unit control drop damage method of the wind power integration electrical network of various embodiments of the present invention, has considered normal power supplies and height
The interactive coordination ability of energy two aspects of load is carried, first by dividing elements being carried out to actual electric network, then with loss minimization
For target, determine adjustable extent, regulation order, then be controlled in unit, between control unit, coordinate control, determine wind power integration
Electrical network unit control drop damage method, network loss is reduced to minimum, for electrical network formulate regenerative resource operation plan reference is provided.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for description, the reality with the present invention
Applying example is used for explaining the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the unit control drop damage method schematic diagram of the wind power integration electrical network described in the embodiment of the present invention；
Fig. 2 is that simplifying for the unit control drop damage method wind power integration of the wind power integration electrical network described in the embodiment of the present invention is electric
Pessimistic concurrency control is control unit model；
Fig. 3 is that the unit control drop damage method of the wind power integration electrical network described in the embodiment of the present invention contains extensive renewable energy
The Hexi Corridor electric network wiring scheme of source and high energy load；
Fig. 4 is unit control drop damage method Yumen-Jiuquan region electricity of the wind power integration electrical network described in the embodiment of the present invention
Network Geographical position wiring diagram；
Fig. 5 is sweet under the unit control drop damage method different adjustment mode of the wind power integration electrical network described in the embodiment of the present invention
Respectful network loss compares change curve with wind power output.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Specifically, on the basis of existing normal power supplies, high energy load, the grid-connected position of wind park and capacity data,
Corresponding units division is carried out to each wind park, normal power supplies and high energy load, list is carried out according to wind power output situation reasonably
First interior normal power supplies and between unit and the power coordination of high energy load, as are down to network loss minimum as possible.Specific implementation step
Such as accompanying drawing 1.It is with wastage reducing and energy saving as target that the unit of wind power integration electrical network controls to drop damage method, coordinates control to control unit
System, reduces network loss.The effect of this drop damage method is illustrated with reference to the simplified electric network model of wind power integration.
S1：According to geographical diagram, dividing elements are controlled to wind park, normal power supplies and high energy load.
The S1 is comprised the following steps：
S101:Control unit includes two nodes, and it is control unit direction to define wind power flow direction；
S102:Define wind power to flow out node according to control unit direction is control unit sending end, and another node is control
Unit receiving end processed.Control unit sending end includes wind park Pwi+jQwi, normal power supplies PGi0+jQGi0With high energy load PLi0+
jQLi0；Control unit receiving end includes normal power supplies PGi1+jQGi1With high energy load PLi1+jQGi1.Note as being terminated with wind-powered electricity generation
Factory, then should be incorporated to next stage control unit sending end by the wind park；
S2：According to each control unit wind park predictive value Pwi+jQwi, sending end normal power supplies planned value PGi0+jQGi0, high load
Can load put into operation capacity PLi0+jQLi0, receiving end normal power supplies planned value PGi1+jQGi1, high energy load puts into operation capacity PLi1+jQGi1,
Determine the adjustable extent and regulation order of normal power supplies and high energy load.
1) adjustable extent
1. normal power supplies unit output bound constraint
PG_mmin≤PG_m≤PG_mmax(1)
In formula：PG_mFor m platform unit outputs；PG_mminFor m platform unit output lower limits；PG_mmaxFor m platform unit outputs
The upper limit.
2. high energy load adjustment constraint
The switching period of kth kind high energy load is constrained to：The persistent period of rise is not less thanIt is less thanMathematical notation is as follows：
In formula：For the adjustment state amount of high energy load k, it is discrete variable, 0 or 1 can only be taken.Take 0 representative not going up
Adjust, take 1 representative rise.
Adjust count constraint
In formula：MkFor maximum allowable switching frequencies of the high energy load k within dispatching cycle.
2) regulation order
As in controlled plant confrontation unit between unit, controlled plant increases transmission distance, so unit should be carried out first
Interior regulation；In control unit, regulation order can be derived from by following：
Sending end source lotus regulated quantity P0=| PG0|+|PL0|, ignore the idle impact to network loss of wind-powered electricity generation, network loss after sending end regulation
For：
In formula：P01+jQ01For line transmission power；U750For 750 high voltage side of transformer voltages；Rl01For transmitting line resistance.
Receiving end source lotus regulated quantity P1=| PG1|+|PL1|, after receiving end is adjusted, network loss is：
Sending end receiving end regulated quantity is identical, i.e. P0=P1When, receiving end regulation can be obtained by formula (6)-(5) poor with sending end regulation drop damage
Value：
From formula (7), PwWhen ≠ 0, Δ P ＞ 0, sending end regulating effect more preferably, therefore in control unit, send by preferential regulation
End.
If normal power supplies, the descending of high energy load power loss sensitivity are (D in sending endi01,Di02,…,Di0N) (N is control
Unit i sending ends processed participate in normal power supplies, the high energy load sum for adjusting), with vector (Pi01,Pi02,…,Pi0N)TRepresent corresponding
Normal power supplies, high energy Load Regulation power, then sending end drop damage value be：
Control unit receiving end control method is identical with control unit sending end：
If normal power supplies, the descending of high energy load power loss sensitivity are (D in receiving endi11,Di12,…,Di1M) M
The normal power supplies for adjusting, high energy load sum are participated in for control unit i receiving end, receiving end routine are adjusted according to power loss sensitivity descending
Power supply, high energy load；With vector (Pi11,Pi12,…,Pi1M)TMatching convention power supply, high energy Load Regulation power is represented, then
Damage value drops in receiving end：
S3：With loss minimization as target, control is coordinated to each control unit, obtain the unit control of wind power integration electrical network
System drop damage method.
The S3 is comprised the following steps：
S301:According to each control unit wind park predictive value Pwi+jQwi, wind-powered electricity generation monthly average exert oneself ratio η, determine wind park
It is in additional issue or subtracts hair-like state；
S302:If wind-powered electricity generation is issued additional, sending end normal power supplies, the power loss sensitivity of high energy Load Regulation amount is calculated, according to sensitive
Degree order of successively decreasing reduces sending end normal power supplies and exerts oneself PGi0+jQGi0, increase high energy load capacity PLi0+jQLi0, sending end regulated quantity
Absolute value sum is equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0| when, adjust and stop；
S303:If wind-powered electricity generation additional issue, sending end regulating power uses up, regulated quantity absolute value sum still less than wind-powered electricity generation additional issue amount, then
Receiving end normal power supplies, the power loss sensitivity of high energy Load Regulation amount is calculated, successively decreases the conventional electricity of receiving end that sequentially reduce according to sensitivity
Exert oneself P in sourceGi1+jQGi1, increase high energy load capacity PLi1+jQLi1, in control unit, regulated quantity absolute value sum is equal to wind-powered electricity generation
Additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0|+|ΔPGi1|+|ΔPLi1| when, adjust and stop；
S304:If wind-powered electricity generation is issued additional, receiving end regulating power is used up, and can not still meet regulated quantity absolute value sum in control unit
Wind-powered electricity generation additional issue amount is equal to, is then adjusted and is closed on control unit sending end, due to closing on controlled plant increase in control unit confrontation unit
Transmission distance, adjusting efficiency reduces, so lower sensitivity limit should arrange, in control unit, to close on control unit regulated quantity exhausted
Wind-powered electricity generation additional issue amount is equal to being worth sum,
I.e.(n is and control unit i
Close on and sending end sensitivity more than limit value control unit number), or the sensitivity of institute adjusted position stops when being less than limit value；
S305:If wind-powered electricity generation subtracts sending out, network loss repeats S302-S304 higher than monthly average network loss；Network loss is less than monthly average network loss,
On the basis of power system active balance is met, now mainly should consider to meet high energy business electrical demand.Because wind-powered electricity generation subtracts
When sending out, electric cost increases, and can cut off high energy load in right amount.
In figure 3, it is Hexi Corridor electric network wiring scheme containing extensive regenerative resource and high energy load, with Gansu
Analyze as a example by the big typical operation modes of winter in 2014, the drop damage method of the wind power integration electrical network that the present invention is provided includes：
S1:According to geographical diagram, dividing elements are controlled to wind park, normal power supplies and high energy load.
S101:Yumen-Jiuquan regional power grid geographical diagram such as Fig. 4.It is typical control unit to select which, including jade
Door, two, Jiuquan node, it is control unit direction to define wind power flow direction；
S102:Select to have Yumen area of large-scale wind power and a small amount of normal power supplies as sending end；Have thermoelectricity, wind
Yumen-Jiuquan typical case's control unit is set up as receiving end in the Jiuquan region of electric and large quantities of high energy industries.Note Jiuquan ground
Area's wind park is incorporated to next stage control unit sending end.
S2:According to control unit wind park predictive value Pwi+jQwi, sending end normal power supplies planned value PGi0+jQGi0, high energy
Load puts into operation capacity PLi0+jQLi0, sending end normal power supplies planned value PGi1+jQGi1, high energy load puts into operation capacity PLi1+jQGi1, really
Determine the adjustable extent and regulation target of normal power supplies and high energy load.The grid-connected 100MW of the prosperous Xidan seat wind park of sending end, installation hold
Amount 201MW；The thermal power plant's off-grid operation of 5, Yumen, total installation of generating capacity 110MW；Yumen regional load is 60MW；Jiuquan region thermoelectricity
Factory is numerous, by taking the thermoelectricity of Jiuquan as an example, 2 installed capacity 330MW units, and adjustable extent is 0-330MW；Jiuquan thermoelectricity load is
58.24MW.
S3:With loss minimization as target, control is coordinated to sending end receiving end in each control unit, wind power integration is obtained
The loss minimization method of operation.
S301:Exerted oneself ratio according to control unit wind park predictive value, wind-powered electricity generation monthly average, determine wind park in additional issue or
Subtract hair-like state.Sending end accesses 100MW wind-powered electricity generations (Gansu network loss value is 347.377MW), because raw data packets subtract in wind-powered electricity generation additional issue
Critical state is sent out, so being now in additional issue state；
S302:Reduce normal power supplies 100MW, increase high energy 0MW in sending end respectively；Reduce normal power supplies 0MW, increase height
Energy 100MW is carried, makes sending end regulated quantity absolute value sum be equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0|；
S303:Reduce normal power supplies 100MW, increase high energy 0MW in receiving end respectively；Reduce normal power supplies 0MW, increase height
Energy 100MW is carried, makes receiving end regulated quantity absolute value sum be equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi1|+|ΔPLi1|；
Statistics network loss situation of change such as following table：
Receiving end drop is sent to damage contrast table
Drop damages effect as shown in figure 5, from simulation result：Sending end drop is adjusted in Yumen-Jiuquan typical case's control unit to damage
Effect is much better than receiving end.Successively decrease sequentially according to sensitivity, in this element, control sequence is Yumen thermoelectricity → Yumen load → Jiuquan heat
Electricity → Jiu Gang aluminium manufacturers.
Copy Yumen-Jiuquan control unit division methods, dividing elements carried out to west of a river electrical network, be divided into " Dunhuang-Yumen ",
" Yumen-Jiuquan ", " Jiuquan-west of a river ", " west of a river-Wusheng " 4 control units, as shown in Figure 2.Subtract the period that sends out, net in wind-powered electricity generation
Damage and be generally below monthly average network loss, on the basis of power-balance is met, do not apply drop and damage regulation measure.When wind-powered electricity generation is issued additional
Section, under different wind power output percentage ratios, is adjusted to west of a river electrical network by following three kinds of regulative modes respectively：
1. normal power supplies are adjusted, makes Δ PG=Δ Pw；
2. high energy load is adjusted, makes Δ Pl=Δ Pw；
3. regulation unit, makes Δ Pi=Δ Pw.
From simulation result, under wind power integration, adjusting normal power supplies, high energy load and control unit respectively can have
Effect reduces network loss.When wind-powered electricity generation is sent out greatly, damage advantage is dropped in control unit mode and is highlighted.
Examples detailed above analysis shows：Wind power integration electrical network unit control drop damage method, considered normal power supplies and
The interactive coordination ability of two aspects of high energy load, first by carrying out dividing elements to actual electric network, then with network loss most
Little for target, determine adjustable extent, regulation order, then be controlled in unit, between control unit, coordinate control, finally determine wind
The unit control drop damage method of electrical network is electrically accessed, effectively can reduce network loss, be that electrical network formulation regenerative resource operation plan is carried
For reference.
On the basis of existing normal power supplies, high energy load, the grid-connected position of wind park and capacity data, to each wind-powered electricity generation
Factory, normal power supplies and high energy load carry out corresponding units division, are reasonably carried out according to wind power output situation in unit and single
Between unit, normal power supplies and the power coordination of high energy load, as are down to network loss minimum as possible.Specific implementation step such as accompanying drawing 1.
The present invention is used for providing reference for dispatching of power netwoks department reasonable arrangement regenerative resource operation plan.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to,
Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used
To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic.
All any modification, equivalent substitution and improvements that within the spirit and principles in the present invention, is made etc., should be included in the present invention's
Within protection domain.
Claims (5)
1. damage method drops in the unit control of wind power integration electrical network, it is characterised in that comprise the following steps：
Step 1：According to geographical diagram, dividing elements are controlled to wind park, normal power supplies and high energy load；
Step 2：According to each control unit wind park predictive value Pwi+jQwi, sending end normal power supplies planned value PGi0+jQGi0, high energy
Load puts into operation capacity PLi0+jQLi0, receiving end normal power supplies planned value PGi1+jQGi1With carry can load put into operation capacity PLi1+jQGi1, really
Determine the adjustable extent and regulation order of normal power supplies and high energy load；
Step 3:With loss minimization as target, control is coordinated to each control unit, obtain the unit control of wind power integration electrical network
System drop damage method.
2. damage method drops in the unit control of wind power integration electrical network according to claim 1, it is characterised in that institute in step 1
Stating control unit includes two nodes, defines direction of the wind power stream for control unit, and control unit is divided and specifically included, root
Define wind power to flow out node according to control unit direction is control unit sending end, and another node is control unit receiving end,
Described control unit sending end includes wind park Pwi+jQwi, normal power supplies PGi0+jQGi0With high energy load PLi0+jQLi0；
Described control unit receiving end includes normal power supplies PGi1+jQGi1With high energy load PLi1+jQGi1；If being terminated with wind-powered electricity generation
Factory, then be incorporated to next stage control unit sending end by the wind park.
3. damage method drops in the unit control of wind power integration electrical network according to claim 2, it is characterised in that in step 2, can
The determination of scope is adjusted to specifically include,
Normal power supplies unit output bound is constrained：
PG_mmin≤PG_m≤PG_mmax(1)
In formula：PG_mFor m platform unit outputs；PG_mminFor m platform unit output lower limits；PG_mmaxFor on m platform unit outputs
Limit；
High energy load adjustment is constrained：
The switching period of kth kind high energy load is constrained to：The persistent period of rise is not less thanIt is less thanNumber
Be expressed as follows：
In formula：For the adjustment state amount of high energy load k, it is discrete variable, 0 or 1 can only be taken, takes 0 representative and do not raise, take 1
Represent and raise,
Adjust count constraint
In formula：MkFor maximum allowable switching frequencies of the high energy load k within dispatching cycle.
4. damage method drops in the unit control of wind power integration electrical network according to claim 3, it is characterised in that regulation order
Determination includes,
As in controlled plant confrontation unit between unit, controlled plant increases transmission distance, so being controlled in unit first
Adjust；In control unit, the determination of regulation order is specifically included：
Sending end source lotus regulated quantity P0=| PG0|+|PL0|, ignore the idle impact to network loss of wind-powered electricity generation, after sending end is adjusted, network loss is：
In formula：P01+jQ01For line transmission power；U750For 750 high voltage side of transformer voltages；Rl01For transmitting line resistance；
Receiving end source lotus regulated quantity P1=| PG1|+|PL1|, after receiving end is adjusted, network loss is：
Sending end receiving end regulated quantity is identical, i.e. P0=P1When, made the difference by formula (6) and formula (5) receiving end regulation is obtained with sending end regulation
Drop damages difference：
From formula (7), PwWhen ≠ 0, Δ P ＞ 0, sending end regulating effect more preferably, therefore preferentially adjust sending end in control unit,
If normal power supplies, the descending of high energy load power loss sensitivity are (D in sending endi01,Di02,…,Di0N) N for control
Unit i sending ends processed participate in normal power supplies, the high energy load sum for adjusting, with vector (Pi01,Pi02,…,Pi0N)TRepresent corresponding
Normal power supplies, high energy Load Regulation power, then sending end drop damage value be：
Secondly to control unit receiving end according to being adjusted with control unit sending end identical control method：
If normal power supplies, the descending of high energy load power loss sensitivity are (D in receiving endi11,Di12,…,Di1M) M for control
Unit i receiving ends processed participate in normal power supplies, the high energy load sum for adjusting, and adjust the conventional electricity of receiving end according to power loss sensitivity descending
Source, high energy load；With vector (Pi11,Pi12,…,Pi1M)TMatching convention power supply, high energy Load Regulation power is represented, is then received
Damage value drops in end：
5. damage method drops in the unit control of wind power integration electrical network according to claim 1, it is characterised in that have in step 3
Body includes：According to each control unit wind park predictive value Pwi+jQwi, wind-powered electricity generation monthly average exert oneself ratio η, determine wind park in increasing
Hair-like state subtracts hair-like state；
If wind park is in additional issue state, concrete regulating step includes：
Step 31：If wind park is in additional issue state, calculate sending end normal power supplies, high energy Load Regulation amount network loss sensitive
Degree, reduces sending end normal power supplies and exerts oneself P according to sensitivity order of successively decreasingGi0+jQGi0, increase high energy load capacity PLi0+jQLi0, send
End regulated quantity absolute value sum is equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0| when, adjust and stop；
Step 32：If wind park is in additional issue state, sending end regulating power is used up, and sending end regulated quantity absolute value sum is still less than wind
Electric additional issue amount, then calculate receiving end normal power supplies, the power loss sensitivity of high energy Load Regulation amount, successively decreases according to sensitivity and sequentially reduce
Receiving end normal power supplies are exerted oneself PGi1+jQGi1, increase high energy load capacity PLi1+jQLi1, in control unit regulated quantity absolute value it
Be equal to wind-powered electricity generation additional issue amount, i.e. Δ Pwi=| Δ PGi0|+|ΔPLi0|+|ΔPGi1|+|ΔPLi1| when, adjust and stop；
Step 33：If wind-powered electricity generation is issued additional, receiving end regulating power is used up, and can not still meet regulated quantity absolute value sum etc. in control unit
In wind-powered electricity generation additional issue amount, then adjust and close on control unit sending end, increase due to closing on controlled plant in control unit confrontation unit
Transmission distance, adjusting efficiency reduces, so arranging in lower sensitivity limit, control unit, closing on control unit regulated quantity absolute value
Sum is equal to wind-powered electricity generation additional issue amount or institute's adjusted position sensitivity stops when being less than limit value；In described control unit regulated quantity absolute value with
Close on control unit regulated quantity absolute value sum equal to wind-powered electricity generation additional issue amount i.e.：
The n be close on control unit i and sending end sensitivity more than limit value control unit number；
If, in hair-like state is subtracted, network loss is higher than monthly average network loss, repeat step 31- step 33 for wind park；Network loss is less than monthly average
Network loss, on the basis of power system active balance is met, does not apply drop and damages regulation measure, because when wind-powered electricity generation subtracts to be sent out, electric cost increases
Plus, appropriate excision high energy load.
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