CN108718093A - A kind of high energy load participates in active-reactive coordination control method of wind electricity digestion - Google Patents
A kind of high energy load participates in active-reactive coordination control method of wind electricity digestion Download PDFInfo
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- 230000005611 electricity Effects 0.000 title claims abstract description 114
- 230000029087 digestion Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000009471 action Effects 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 8
- 230000009194 climbing Effects 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 7
- 229910010271 silicon carbide Inorganic materials 0.000 description 7
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
-
- 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
- H02J3/04—Circuit arrangements for ac mains or ac distribution networks for connecting networks of the same frequency but supplied from different sources
- H02J3/06—Controlling transfer of power between connected networks; Controlling sharing of load between connected networks
-
- 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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
-
- 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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- H02J3/386—
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The invention discloses active-reactive coordination control methods that a kind of high energy load participates in wind electricity digestion.It is characterized on the basis of determining high energy load variable capacity, consider the constraintss such as Power Systems balance and high energy load operation time, establish the Reactive-power control model that high energy load participates in the electricity Optimized model and capacitance/reactor of wind electricity digestion, reasonably carry out the coordination of high energy load and wind power, while being adjusted to the original electricity consumption plan of high energy load and the original output plan of wind power plant, the switching plan of capacitance/reactor is arranged.The present invention can reduce high energy load and participate in providing guidance the problem of adjusting the influence to System Reactive Power, reduce the fluctuation of system voltage, be obstructed for wind electricity digestion while more consumption wind-powered electricity generations as far as possible.
Description
Technical field
The invention belongs to renewable energy utilizations and scheduling field, and in particular, to a kind of high energy load participation wind-powered electricity generation
Active-reactive coordination control method of consumption.
Background technology
THE WIND ENERGY RESOURCES IN CHINA is concentrated mainly on " three Norths " area, and far from load center, and China's energy resource structure is with coal electricity
It is main, modulability power supply and Demand Side Response resource shortage, electric system passway for transmitting electricity capacity, on-site elimination ability and peak modulation capacity
Deficiency becomes the key constraints of new energy development.Traditional distribution mode cannot be satisfied the growth requirement of wind-powered electricity generation, find new
Approach solves the problems, such as that wind electricity digestion is particularly important.
On the other hand, the uncontrollability of wind-powered electricity generation active power output can make reactive power change, and voltage fluctuation is brought to ask
Topic, large-scale wind power integration need enough Reactive-power control abilities, are likely to realize effective control of voltage, ensure power train
The security and stability of system.Go deep into the adjustable characteristic of digging utilization high energy load, increase wind-powered electricity generation on-site elimination ability, is to solve
The effective measures of wind electricity digestion problem.Therefore, research high energy load participates in active-reactive coordination control method of wind electricity digestion
With important theoretical and practical significance.
Invention content
It is an object of the present invention in view of the above-mentioned problems, propose that a kind of high energy load participates in active-nothing of wind electricity digestion
Work(control method for coordinating, in the case of solving quantitative calculating high energy load participation wind electricity digestion, high energy load power tune
Whole amount and wind power increment provide reference for power grid regenerative resource management and running.
To achieve the above object, the technical solution adopted by the present invention is：A kind of high energy load participation wind electricity digestion has
Work(- reactive coordination control method, which is characterized in that include the following steps：
S1：According to the initial electricity consumption of high energy load and bound is adjusted, determines the variable capacity of high energy load；
S2：It is predicted and is planned a few days ago according to wind-powered electricity generation, the wind power P that is obstructed is calculatedF(t)；
S3：Establish the electricity Optimized model that high energy load participates in wind electricity digestion；
S4：Obtain each moment power adjustment Δ P of high energy loadDL(i, t) and wind-powered electricity generation overall power increase Δ PW(t)；
S5：By the initial electricity consumption plan of high energy load and adjustment amount, electricity consumption plan after high energy load adjustment is formulated；
S6：Wind-powered electricity generation overall power increase is distributed into each wind power plant according to power proportions of being obstructed, by the original output of wind power plant
Plan and power increment formulate output plan after wind power plant adjustment；
S7：Load flow calculation is carried out according to the plan of contributing after electricity consumption plan after high energy load adjustment and the adjustment of wind power plant,
Each bus run voltage of system is obtained, judges whether voltage out-of-limit, if there are voltage out-of-limit, passes through switching capacitance/electricity
The measure of anti-device carries out Reactive-power control to out-of-limit busbar, and control bus voltage is allowing in voltage range；
S8：Establish capacitance/reactor Reactive-power control model；
S9：Arrange the switching plan of capacitance/reactor；
S10：Active-idle coordination control that high energy load participates in wind electricity digestion terminates.
Further, in S3, the high energy load participates in the electricity Optimized model of wind electricity digestion, object function and constraint
Condition includes：
1) object function
Determine that high energy load participates in the object function of wind electricity digestion, i.e. wind electricity digestion amount is maximum.
2) constraints
The constraints that object function should meet includes system power Constraints of Equilibrium, adjustable range constraint, wind electricity digestion work(
Rate constraint, run time constraint, the constraint of climbing rate, response time spacing constraint etc..
Further, in S8, the capacitance/reactor Reactive-power control model, object function and constraints include：
1) object function
Determine the object function of capacitance/reactor Reactive-power control, i.e. voltage Accumulated deviation minimum and capacitance/reactor action
Number is minimum.
2) constraints
The constraints that object function should meet includes power flow equation constraint, voltage security constraint and control variables constraint
Deng.
Technical scheme of the present invention has the advantages that：
A kind of high energy load provided by the invention participates in active-reactive coordination control method of wind electricity digestion, and synthesis is examined
The influence for having considered active and reactive two aspects, the electricity Optimized model and electricity of wind electricity digestion are participated in by establishing high energy load
The Reactive-power control model of appearance/reactor, obtains high energy load power adjustment amount and wind power increment, can be again for power grid formulation
Raw energy scheduling plan provides reference.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 high energy loads participate in the flow chart of active-reactive coordination control method of wind electricity digestion；
Fig. 2 Gansu Power Grid high energy loads on-position schematic diagram；
Fig. 3 is obstructed Hexi prefecture wind power curve graph；
Fig. 4 silicon carbide and electrolytic aluminium adjustment amount and wind-powered electricity generation overall power increase curve graph；
Electricity consumption plan comparison diagram after Fig. 5 silicon carbide and the initial electricity consumption plan of electrolytic aluminium and adjustment；
Fig. 6-Fig. 7 is output plan comparison diagram after the original output plan of typical wind power plant and adjustment；
Voltage condition figure before and after each 330kV substations Reactive-power control described in Fig. 8 embodiments 2；
It is obstructed before and after active-idle coordination control of Hexi prefecture described in Fig. 9 embodiments 2 wind power curve comparison figure；
Be obstructed wind-powered electricity generation total amount comparison diagram before and after active-idle coordination control in Hexi prefecture described in Figure 10 embodiments 2.
Specific implementation mode
The exemplary embodiments of the present invention are illustrated below in conjunction with attached drawing, it should be understood that described herein typical real
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, after having read the present invention, people in the art
Member falls within the application range as defined in the appended claims to the modification of the various equivalent forms of the present invention.
Embodiment 1：
Fig. 1 is the flow chart for active-reactive coordination control method that high energy load of the present invention participates in wind electricity digestion, a kind of
High energy load participates in active-reactive coordination control method of wind electricity digestion, includes the following steps：
S1：According to the initial electricity consumption of high energy load and bound is adjusted, determines the variable capacity of high energy load；
S2：It is predicted and is planned a few days ago according to wind-powered electricity generation, the wind power P that is obstructed is calculatedF(t)；
PF(t)=Ppre(t)-Pplan(t) (1)
In formula：PF(t) it is that t moment is obstructed wind power, Ppre(t) it is t moment wind-powered electricity generation predicted value a few days ago, Pplan(t) be t when
Carve the original output planned value of wind-powered electricity generation.
S3：Establish the electricity Optimized model that high energy load participates in wind electricity digestion；
S4：Obtain each moment power adjustment Δ P of high energy loadDL(i, t) and wind-powered electricity generation overall power increase Δ PW(t)；
S5：By the initial electricity consumption plan of high energy load and adjustment amount, electricity consumption plan after high energy load adjustment is formulated：
PDL(i, t)=PDL_plan(i,t)+ΔPDL(i,t) (2)
In formula：PDLElectricity consumption planned value after the adjustment that (i, t) is t moment high energy load i, PDL_plan(i, t) is that t moment is high
Carry the initial electricity consumption unscheduled power value of energy load i, Δ PDL(i, t) is the power adjustment of t moment high energy load i, upper timing
ΔPDL(i, t) > 0.
S6：Wind-powered electricity generation overall power increase is distributed into each wind power plant according to power proportions of being obstructed, by the original output of wind power plant
Plan and power increment formulate output plan after wind power plant adjustment：
PW(k, t)=PW_plan(k,t)+ΔPW1(k,t) (3)
In formula：PW(k, t) is planned value of contributing after t moment wind power plant k is adjusted, Δ PW1(k, t) is t moment wind power plant k's
Power increment, PW_plan(k, t) is the original output planned value of t moment wind power plant k, Δ PW1(k, t) is the work(of t moment wind power plant k
Rate increment.
S7：Load flow calculation is carried out according to the plan of contributing after electricity consumption plan after high energy load adjustment and wind power plant adjustment, is obtained
To each bus run voltage of system, judges whether voltage out-of-limit, pass through switching capacitance reactor if there are voltage out-of-limit
Measure to out-of-limit busbar carry out Reactive-power control, control bus voltage allow voltage range in；
S8：Establish capacitance/reactor Reactive-power control model；
S9：Arrange the switching plan of capacitance/reactor；
S10：Active-idle coordination control that high energy load participates in wind electricity digestion terminates.
Preferably, the electricity Optimized model that the high energy load in the S3 participates in wind electricity digestion includes following object function
And constraints：
1) object function
Wind electricity digestion amount is maximum：
In formula：F1For total wind electricity digestion increment；T is hop count when schedule periods are total；NDLIt is negative to participate in the high energy adjusted
Lotus number, Δ PDL(i, t) is t period high energy load i power adjustments, and Δ T is the time of each period lasts.
2) constraints
The constraints that object function should meet includes system power Constraints of Equilibrium, adjustable range constraint, wind electricity digestion work(
Rate constraint, run time constraint, the constraint of climbing rate, response time spacing constraint etc..
A. system power Constraints of Equilibrium
In formula：PW(t) it is t moment wind-powered electricity generation overall power increase.
B. adjustable range constrains
In formula：Respectively high energy Load Regulation upper and lower bound.
C. wind electricity digestion power constraint
In formula：PF(t) it is that t moment wind-powered electricity generation is obstructed power.
D. run time constrains
In formula：For maximum run time；
α (i, t) is 0-1 state variables,
E. climbing rate constrains
In formula：The respectively upper and lower climbing rate of high energy load,For positive value,For negative value.
F. response time spacing constraint
In formula：For the Best-case Response Time interval of high energy load i, which indicates that high energy load i at least need to be same
One operating status maintainsIt just may participate in and adjust next time afterwards.
Preferably, the capacitance in the S8/reactor Reactive-power control model includes following object function and constraints：
1) object function
A. voltage Accumulated deviation is minimum
In formula：For the average voltage of t period busbares j；For the target reference voltage average value of t period busbares j；m
Represent bus nodes sum；P is to coordinate hop count when in controlling cycle.
B. capacitance/reactor action frequency is minimum
In formula：L indicates the quantity of capacitance/reactor.Indicate the switching action of capacitance/reactor, 1 indicates capacitance/electricity
Anti- device input action, 0 indicates to be failure to actuate, and -1 indicates capacitance/reactor excision action.
To sum up, capacitance/reactor Reactive-power control model objective function is：
In formula：The weight coefficient respectively determined by control targe.
2) constraints
The constraints that object function should meet includes power flow equation constraint, voltage security constraint and control variables constraint.
A. power flow equation constrains
In formula,WithRespectively represent the injection active power and reactive power of t period node is；For t period node is
Voltage value；For the phase angle difference of two node voltages of t periods i, j；GijFor the conductance of circuit ij；BijFor the susceptance of circuit ij.
B. voltage security constrains
In formula：UiminAnd UimaxThe upper limit value and lower limit value that node i voltage allows is indicated respectively.
C. control variables constraint
In formula：Nj,minAnd Nj,maxRespectively represent capacitance/reactor j can switching group number lower and upper limit.
Embodiment 2：
Fig. 2 is Gansu Power Grid high energy load on-position schematic diagram, is analyzed with data instance on April 5th, 2016, this hair
Active-reactive coordination control method that the high energy load of bright offer participates in wind electricity digestion includes：
S1：According to the initial electricity consumption of high energy load and bound is adjusted, determines the variable capacity of high energy load；
1 Hexi prefecture high energy control characteristic of table
S2：It is predicted and is planned a few days ago according to wind-powered electricity generation, the wind power P that is obstructed is calculatedF(t), as shown in Figure 3；
S3：Establish the electricity Optimized model that high energy load participates in wind electricity digestion；
S4：Obtain each moment power adjustment Δ P of high energy loadDL(i, t) and wind-powered electricity generation overall power increase Δ PW(t)；
The electricity Optimized model that wind electricity digestion is participated according to silicon carbide and electrolytic aluminium, obtains each moment power adjustment Δ PDL
(i, t) and wind-powered electricity generation overall power increase Δ PW(t), as shown in Figure 4.
S5：Initial electricity consumption plan by silicon carbide and electrolytic aluminium and adjustment amount, after the adjustment for formulating silicon carbide and electrolytic aluminium
Electricity consumption plan comparison diagram after silicon carbide and the initial electricity consumption plan of electrolytic aluminium and adjustment is given below, as shown in Figure 5 in electricity consumption plan.
S6：Wind-powered electricity generation overall power increase is distributed into each wind power plant according to power proportions of being obstructed, by the original output of wind power plant
Plan and power increment formulate output plan after wind power plant adjustment, if table 2 is 00:00-05:The 45 typical wind in four, the west of a river of period
Output plan pair after the power increment distribution condition of electric field, Fig. 6 and Fig. 7 are the original output plans of the period wind power plant and adjust
Than figure；
2 wind power increment (unit of table：MW)
S7：Trend meter is carried out according to the plan of contributing after electricity consumption plan after the adjustment of silicon carbide and electrolytic aluminium and wind power plant adjustment
Calculate, obtain each bus run voltage of system, judge whether voltage out-of-limit, if there are voltage out-of-limit by switching capacitance/
The measure of reactor carries out Reactive-power control to out-of-limit busbar, and control bus voltage is allowing in voltage range；
Each 330kV substation operations voltage and permission voltage range are as shown in table 3 before voltage is adjusted：
Each 330kV substation bus bars voltage (unit before 3 Reactive-power control of table：kV)
S8：Establish capacitance/reactor Reactive-power control model；
S9：Arrange the switching plan of capacitance/reactor；
It is out-of-limit that preceding part 330kV substations are adjusted as can be seen from Table 3, Reactive-power control is carried out to it, and capacitance/reactor is thrown
The plan of cutting is as shown in table 4：
Each 330kV transformer substation voltages situation and switching plan after 4 Reactive-power control of table
Voltage condition is as shown in Figure 8 before and after each 330 substation Reactive-power control：
By figure as can be seen that after the adjusting of shunt capacitance/reactor, each substation bus bar voltage is allowing electricity
It presses in range, and runs on more excellent water and put down, so far complete active-idle coordination control of high energy load.
S10：Active-idle coordination control that high energy load participates in wind electricity digestion terminates, and high energy load is given below
Be obstructed before and after active-idle coordination controls wind power curve and the wind-powered electricity generation total amount comparison diagram that is obstructed are participated in, respectively such as Fig. 9 and Figure 10
It is shown.
As shown in Figure 10, by high energy load participate in wind electricity digestion active-idle coordinations control after, Hexi prefecture by
Choke electricity total amount drops to 1658.0225MWh by 3248.825MWh, reduces 49.96%, high energy load participates in adjusting
It dissolves with obvious effects.
Examples detailed above analysis shows：A kind of high energy load participates in active-reactive coordination control method of wind electricity digestion, comprehensive
Conjunction consider system it is active and reactive two aspect, by establish with wind electricity digestion amount be up to target mathematical model and capacitance/
The Reactive-power control model of reactor obtains each moment power adjustment of high energy load and wind power increment, to high energy
The initial electricity consumption plan of load and the initial generation schedule of wind power plant are adjusted, and formulating regenerative resource operation plan for power grid provides
With reference to.
Claims (3)
1. a kind of high energy load participates in active-reactive coordination control method of wind electricity digestion, which is characterized in that the controlling party
Method includes the following steps：
S1：According to the initial electricity consumption of high energy load and bound is adjusted, determines the variable capacity of high energy load；
S2：It is predicted and is planned a few days ago according to wind-powered electricity generation, the wind power P that is obstructed is calculatedF(t)；
S3：Establish the electricity Optimized model that high energy load participates in wind electricity digestion；
S4：Obtain each moment power adjustment Δ P of high energy loadDL(i, t) and wind-powered electricity generation overall power increase Δ PW(t)；
S5：By the initial electricity consumption plan of high energy load and adjustment amount, electricity consumption plan after high energy load adjustment is formulated；
S6：Wind-powered electricity generation overall power increase is distributed into each wind power plant according to power proportions of being obstructed, by the original output plan of wind power plant
And power increment, formulate output plan after wind power plant adjustment；
S7：Load flow calculation is carried out according to the plan of contributing after electricity consumption plan after high energy load adjustment and the adjustment of wind power plant, is obtained
Each bus run voltage of system, judges whether voltage out-of-limit, if there are voltage out-of-limit, passes through switching capacitance/reactor
Measure to out-of-limit busbar carry out Reactive-power control, control bus voltage allow voltage range in；
S8：Establish capacitance/reactor Reactive-power control model；
S9：Arrange the switching plan of capacitance/reactor；
S10：Active-idle coordination control that high energy load participates in wind electricity digestion terminates.
2. a kind of high energy load according to claim 1 participates in active-reactive coordination control method of wind electricity digestion,
It is characterized in that, the electricity Optimized model that the high energy load in the S3 participates in wind electricity digestion includes following object function and constraint
Condition：
1) object function
Wind electricity digestion amount is maximum：
In formula：ΔPW(t) it is t moment wind-powered electricity generation overall power increase；T is hop count when schedule periods are total；NDLTo participate in the high load adjusted
Energy load number, Δ PDL(i, t) is t period high energy load i power adjustments, and Δ T is the time of each period lasts.
2) constraints
The constraints that object function should meet include system power Constraints of Equilibrium, adjustable range constraint, wind electricity digestion power about
Beam, run time constraint, the constraint of climbing rate, response time spacing constraint etc.；
A. system power Constraints of Equilibrium
In formula：ΔPW(t) it is t moment wind-powered electricity generation overall power increase.
B. adjustable range constrains
In formula：Respectively high energy Load Regulation bound.
C. wind electricity digestion power constraint
In formula：PF(t) it is that t moment wind-powered electricity generation is obstructed power.
D. run time constrains
In formula：Ti dFor maximum run time；
α (i, t) is 0-1 state variables,
E. climbing rate constrains
In formula：The respectively upper and lower climbing rate of high energy load,For positive value,For negative value；
F. response time spacing constraint
In formula：Ti uFor the Best-case Response Time interval of high energy load i, which indicates that high energy load i at least need to be in same fortune
Row state maintains Ti uIt just may participate in and adjust next time afterwards.
3. a kind of high energy load according to claim 1 participates in active-reactive coordination control method of wind electricity digestion,
It is characterized in that, the capacitance in the S8/reactor Reactive-power control model includes following object function and constraints：
1) object function
A. voltage Accumulated deviation is minimum
In formula：For the average voltage of t period busbares j；For the target reference voltage average value of t period busbares j；M is represented
Bus nodes sum；P is to coordinate hop count when in controlling cycle.
B. capacitance/reactor action frequency is minimum
In formula：L indicates the quantity of capacitance/reactor,Indicate the switching action of capacitance/reactor, 1 indicates capacitance/reactor
Input acts, and 0 indicates to be failure to actuate, and -1 indicates capacitance/reactor excision action.
To sum up, capacitance/reactor Reactive-power control model objective function is：
In formula：The weight coefficient respectively determined by control targe.
2) constraints
The constraints that object function should meet includes power flow equation constraint, voltage security constraint and control variables constraint.
A. power flow equation constrains
In formula, Pi tWithRespectively represent the injection active power and reactive power of t period node is；For the electricity of t period node is
Pressure value；For the phase angle difference of two node voltages of t periods i, j；GijFor the conductance of circuit ij；BijFor the susceptance of circuit ij.
B. voltage security constrains
In formula：UiminAnd UimaxThe upper limit value and lower limit value that node i voltage allows is indicated respectively.
C. control variables constraint
In formula：Nj,minAnd Nj,maxRespectively represent capacitance/reactor j can switching group number lower and upper limit.
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