CN108683197A - It reduces large-scale wind electricity and the dynamic reactive power configuration method of wind problem is abandoned in barrier - Google Patents

It reduces large-scale wind electricity and the dynamic reactive power configuration method of wind problem is abandoned in barrier Download PDF

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CN108683197A
CN108683197A CN201810618398.3A CN201810618398A CN108683197A CN 108683197 A CN108683197 A CN 108683197A CN 201810618398 A CN201810618398 A CN 201810618398A CN 108683197 A CN108683197 A CN 108683197A
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power plant
wind
wind power
voltage
node
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程林
汤磊
牛拴保
郭庆来
张振宇
王彬
柯贤波
孙宏斌
牛涛
葛惠阳
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STATE GRID NORTHWEST CHINA GRID Co Ltd
Tsinghua University
Beijing King Star Hi Tech System Control Co Ltd
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STATE GRID NORTHWEST CHINA GRID Co Ltd
Tsinghua University
Beijing King Star Hi Tech System Control Co Ltd
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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
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
    • H02J3/1871—Methods for planning installation of shunt reactive power compensators
    • 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]
    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The Dynamic reactive power optimization configuration method of wind problem is abandoned the present invention relates to a kind of reduction large-scale wind electricity and barrier, belongs to power system security and control technology field.Wind farm side wind turbine not off-grid, the Voltage Security Region in Node of the wind power plant is calculated in wind farm side when first, to ensure normal operation.Each wind power plant result of calculation is uploaded to power grid wind again and collects station control system, collecting station side in power grid wind calculates idle units limits, and result of calculation is returned to each wind power plant.It is iterated according to first two steps, until convergence.The method of the present invention has fully considered that wind power plant and the voltage security of major network side constrain, it is ensured that after a wind power plant off-grid, other wind power plant normal operations.And can realize the solution of the safe thresholding of network voltage by iteratively faster, the voltage security thresholding being calculated, which contributes to the active power of wind power plant, has certain robustness, is conducive to the voltage control of power grid.

Description

It reduces large-scale wind electricity and the dynamic reactive power configuration method of wind problem is abandoned in barrier
Technical field
The dynamic reactive power configuration method of wind problem is abandoned the present invention relates to a kind of reduction large-scale wind electricity and barrier, belongs to electricity Force system safety and control technology field.
Background technology
Autonomous Voltage Security Region in Node method for solving is proposed to prevent the cascading trip failure in wind power plant.However due to not having Enough dynamic reactive deposits and extensive dynamic reactive unreasonable distribution are concentrating wind power generation field, especially high wind Electricity, which penetrates field, can not ensure the safe operation of wind field, cause wind-abandoning phenomenon serious.Therefore the reasonable distribution of dynamic reactive power It is most important to wind power plant wind energy and reduction wind-abandoning phenomenon.
Invention content
The purpose of the present invention is to propose to a kind of dynamic reactive power configuration sides for considering large-scale wind electricity and barrier and abandoning wind problem Method derives a kind of improved wind power plant switching node voltage feasible region model for considering wind electricity digestion；According to the voltage acquired Feasible zone establishes the voltage security domain model of wind power plant switching node, and by linearizing constraints, it is optimal to establish dynamic reactive Allocation plan.
The dynamic reactive power configuration method proposed by the present invention for considering large-scale wind electricity and barrier and abandoning wind problem, feature exist In this approach includes the following steps：
(1) object function for establishing power grid apoplexy field coupling node voltage feasible zone is as follows：
In above formula, subscript 0 indicates wind power plant normal running (operation) conditions, V0 POC, iWhen indicating wind power plant normal operation, i-th of wind The Voltage Security Region in Node of the switching node of electric field, Δ qi 0The idle work(of wind power generating set in i-th of wind power plant when expression normal operation The regulated quantity of rate, Δ pi 0Indicate the wind-powered electricity generation fluctuation of wind power generating set in i-th of wind power plant, ciAnd siI-th of wind is indicated respectively To the sensitivity matrix of voltage, subscript POC is the switching node of wind power plant for all node active power and reactive power in electric field；
Setting solves above-mentioned bound for objective function, and wherein voltage security constraints is：
vi 0=vi 0, current+s0Δqi 0+c0Δpi 0
Wind turbine active power Climing constant and reactive power Climing constant condition are：
Δpi o ≤Δpi 0≤0
Wind power plant common coupling node busbar voltage is set as V0 PCC=VPCC 0, given, in each step, public coupling section Point voltage value is expressed as VPCC 0, given=VPCC 0, current± mstep, wherein step are step-length, and the value of step-length is that 0.01, m is Step-length number, subscript PCC are wind power plant common coupling node；
Using the method for the derivation of equation, the Optimized model of above-mentioned object function and constraints composition is solved, wind-powered electricity generation is obtained The voltage feasible region V of field switching node0 POC, i；
Wind power plant common coupling node voltage feasible region object function when (1-2) establishes normal operation：
Wherein, fAVSR PCCAnd fAVSR POC, iThe coupling section of the common coupling node and i-th of wind power plant of wind power plant is indicated respectively The voltage feasible region length of point：fAVSR POC, i=V0, (2) POC, i-V0, (1) POC, i, subscript 1 Indicate feasible zone lower limit, 2 indicate the feasible zone upper limit；
The boundary condition of the autonomous Voltage Security Region in Node object function of power grid air control central side is as follows when setting normal operation：
s.t. Li Feasible(VPCC 0, (op), VPOC, i 0, (op))≥ciΔPi curt
V0, (op)=V0, current+Sw 0ΔQw 0, (op)+Sg 0ΔQg 0, (op)+Cw 0ΔPcurt
Wherein, Li FeasibleObtained feasible region constraint is solved for step (1),Indicate the wind of wind power plant when normal operation Total reactive power that motor group generates,Indicate the reactive power that the generator of power grid air control central side when normal operation generates, Subscript g indicates that generator, following table w indicate wind power plant, and op=1 or 2 indicates feasible zone lower limit as op=1, as op=2, Indicate the feasible zone upper limit；
Using the method for iterative solution, the Optimized model of above-mentioned object function and constraints composition is solved, is calculated The voltage feasible region of wind power plant common coupling node when normal operation
(2) voltage feasible region of the wind power plant switching node obtained according to step (1) and the voltage of common coupling node can Row domain, when establishing consideration wind power plant appearance " N-1 " accident, the autonomous Voltage Security Region in Node object function of power grid air control central side is：
Vs,(op)=V0,(op)+Us+Sw sΔQsvc 0,(op)
When setting the accident of " N-1 " boundary condition of the autonomous Voltage Security Region in Node object function of power grid air control central side as：
The constraint of the quiescent voltage compensator reactive power of power grid air control central side is：
Li Feasible(VPCC s,(op),VPOC,i s,(op))≥ciΔPi curt
Wherein, i=1,2 ..., Nw, s=1,2 ..., Ns, subscript SVC expression quiescent voltage compensators, NwIndicate wind-powered electricity generation The quantity of field, NsWind-powered electricity generation number when indicating that N-1 type tripping faults occur sets wind power plant all in wind power plant and jumps Lock failure, Nw=Ns；Wherein, for generation " N-1 " accident when wind power plant switching node voltage feasible region, Sw sFor the idle work(of wind power plant Sensitivity of the rate to wind power plant switching node voltage；Subscript s is scenario, indicates the different operation conditions of different wind power plants, Including abandoning wind state and malfunction；
Using the method for iterative solution, the Optimized model of above-mentioned object function and constraints composition is solved, is calculated The Voltage Security Region in Node V of air control central side when " N-1 " accidents,(op)；
(3) the autonomous Voltage Security Region in Node and V for establishing above-mentioned steps (2)s,(op)It is indicated with inearized model, including following Step：
Power grid air control central side autonomy Voltage Security Region in Node object function in above-mentioned steps (2) is expressed as by (3-1) Form：
The boundary condition of the above-mentioned object function of setting solution unifies letter and is written as form：
S.t. Fz=d
z≥0
Under optimal electric network swim, above-mentioned variable z is defined as with minor function：
Wherein, Δ Q is the variable quantity of the reactive power of wind power plant, Δ PcurtFor wind power plant in the case where abandoning wind state active power Variable quantity, C1、C2、C3、CconstantConstant coefficient respectively after the derivation of equation；
Matrix F, Z in (3-2) decomposition (3-1)：
F=[FB FN]
Wherein, FBFor optimal basic matrix, FNTo acquire remaining matrix after optimal basic matrix；ZBIt is and FBCorresponding variable Matrix works as FBFor Optimal matrix when, ZN=0；
(4) according to the derivation method of above-mentioned steps (3), the target letter of the allocation optimum of wind power plant dynamic reactive power is established Number：
The boundary condition of above-mentioned object function is：
s.t. Δfn AVSR=λn QΔqsvc,n+λn PΔPn curt
fn AVSR,current+Δfn AVSR≥fn AVSR,require
N=1,2 ..., N
Wherein, N indicates the quantity of wind power plant operating status, ρnIndicate the possibility of n operating status, qunit svcIt indicates The minimum dynamic reactive power partition capacity of each wind power plant and common coupling node substation, xi·qunit svcAnd xPCC· qunit svcI-th of wind power plant and the dynamic reactive power partition capacity of common coupling node substation are indicated respectively.
The Dynamic reactive power optimization configuration method proposed by the present invention for reducing large-scale wind electricity and the consumption of barrier wind power, it is excellent Putting is：
1, the method for the present invention has fully considered that wind power plant and the voltage security of major network side constrain, it is ensured that in a wind-powered electricity generation After the off-grid of field, other wind power plant normal operations.The method of the present invention can realize the safe thresholding of network voltage by iteratively faster It solves, the voltage security thresholding being calculated, which contributes to the active power of wind power plant, has certain robustness, is conducive to power grid Voltage control.
2, the method for the present invention realizes that wind power plant collects the information exchange at station with power grid wind, and calculation amount is small, and calculating speed is fast, Be conducive to the voltage control of power grid.
Description of the drawings
Fig. 1 is the flow diagram of the method for the present invention.
Specific implementation mode
The dynamic reactive power configuration method proposed by the present invention for considering large-scale wind electricity and barrier and abandoning wind problem, flow chart element Figure is as shown in Figure 1, include the following steps：
(1) object function for establishing power grid apoplexy field coupling node voltage feasible zone is as follows：
In above formula, subscript 0 indicates wind power plant normal running (operation) conditions, V0 POC,iWhen indicating wind power plant normal operation, i-th of wind The Voltage Security Region in Node of the switching node of electric field, Δ qi 0The idle work(of wind power generating set in i-th of wind power plant when expression normal operation The regulated quantity of rate, Δ pi 0Indicate the wind-powered electricity generation fluctuation of wind power generating set in i-th of wind power plant, ciAnd siI-th of wind is indicated respectively To the sensitivity matrix of voltage, subscript POC is the switching node of wind power plant for all node active power and reactive power in electric field；
Setting solves above-mentioned bound for objective function, and wherein voltage security constraints is：
vi 0=vi 0,current+s0Δqi 0+c0Δpi 0
Wind turbine active power Climing constant and reactive power Climing constant condition are：
Δpi o ≤Δpi 0≤0
Wind power plant common coupling node busbar voltage is set as V0 PCC=VPCC 0, given, in each step, public coupling section Point voltage value is expressed as VPCC 0,given=VPCC 0,current± mstep, wherein step are step-length, and the value of step-length is that 0.01, m is Step-length number, subscript PCC are wind power plant common coupling node；
Using the method for the derivation of equation, the Optimized model of above-mentioned object function and constraints composition is solved, wind-powered electricity generation is obtained The voltage feasible region V of field switching node0 POC,i；
Wind power plant common coupling node voltage feasible region object function when (1-2) establishes normal operation：
Wherein, fAVSR PCCAnd fAVSR POC,iThe coupling section of the common coupling node and i-th of wind power plant of wind power plant is indicated respectively The voltage feasible region length of point：fAVSR POC,i=V0,(2) POC,i-V0,(1) POC,i, subscript 1 Indicate feasible zone lower limit, 2 indicate the feasible zone upper limit；
The boundary condition of the autonomous Voltage Security Region in Node object function of power grid air control central side is as follows when setting normal operation：
s.t. Li Feasible(VPCC 0,(op),VPOC,i 0,(op))≥ciΔPi curt
V0,(op)=V0,current+Sw 0ΔQw 0,(op)+Sg 0ΔQg 0,(op)+Cw 0ΔPcurt
Wherein, Li FeasibleObtained feasible region constraint is solved for step (1),Indicate wind power plant when normal operation Total reactive power that Wind turbines generate,Indicate the idle work(that the generator of power grid air control central side when normal operation generates Rate, subscript g indicate that generator, following table w indicate that wind power plant, op=1 or 2 indicate feasible zone lower limit, work as op=2 as op=1 When, indicate the feasible zone upper limit；
Using the method for iterative solution, the Optimized model of above-mentioned object function and constraints composition is solved, is calculated The voltage feasible region of wind power plant common coupling node when normal operation
(2) voltage feasible region of the wind power plant switching node obtained according to step (1) and the voltage of common coupling node can Row domain, when establishing consideration wind power plant appearance " N-1 " accident, the autonomous Voltage Security Region in Node object function of power grid air control central side is：
Vs,(op)=V0,(op)+Us+Sw sΔQsvc 0,(op)
When setting the accident of " N-1 " boundary condition of the autonomous Voltage Security Region in Node object function of power grid air control central side as：
The constraint of the quiescent voltage compensator reactive power of power grid air control central side is：
Li Feasible(VPCC s,(op),VPOC,i s,(op))≥ciΔPi curt
Wherein, i=1,2 ..., Nw, s=1,2 ..., Ns, subscript SVC expression quiescent voltage compensators, NwIndicate wind-powered electricity generation The quantity of field, NsWind-powered electricity generation number when indicating that N-1 type tripping faults occur sets wind power plant all in wind power plant and jumps Lock failure, Nw=Ns；Wherein, for generation " N-1 " accident when wind power plant switching node voltage feasible region, Sw sFor the idle work(of wind power plant Sensitivity of the rate to wind power plant switching node voltage；Subscript s is scenario, indicates the different operation conditions of different wind power plants, Including abandoning wind state and malfunction；
Using the method for iterative solution, the Optimized model of above-mentioned object function and constraints composition is solved, is calculated The Voltage Security Region in Node V of air control central side when " N-1 " accidents,(op)；
(3) the autonomous Voltage Security Region in Node and V for establishing above-mentioned steps (2)s,(op)It is indicated with inearized model, including following Step：
Power grid air control central side autonomy Voltage Security Region in Node object function in above-mentioned steps (2) is expressed as by (3-1) Form：
The boundary condition of the above-mentioned object function of setting solution unifies letter and is written as form：
S.t. Fz=d
z≥0
Under optimal electric network swim, above-mentioned variable z is defined as with minor function：
Wherein, Δ Q is the variable quantity of the reactive power of wind power plant, Δ PcurtFor wind power plant in the case where abandoning wind state active power Variable quantity, C1、C2、C3、CconstantConstant coefficient respectively after the derivation of equation；
Matrix F, Z in (3-2) decomposition (3-1)：
F=[FB FN]
Wherein, FBFor optimal basic matrix, FNTo acquire remaining matrix after optimal basic matrix；ZBIt is and FBCorresponding variable Matrix works as FBFor Optimal matrix when, ZN=0；
(4) according to the derivation method of above-mentioned steps (3), the target letter of the allocation optimum of wind power plant dynamic reactive power is established Number：
The boundary condition of above-mentioned object function is：
s.t. Δfn AVSR=λn QΔqsvc,n+λn PΔPn curt
fn AVSR,current+Δfn AVSR≥fn AVSR,require
N=1,2 ..., N
Wherein, N indicates the quantity of wind power plant operating status, ρnIndicate the possibility of n operating status, qunit svcIt indicates The minimum dynamic reactive power partition capacity of each wind power plant and common coupling node substation, xi·qunit svcAnd xPCC· qunit svcI-th of wind power plant and the dynamic reactive power partition capacity of common coupling node substation are indicated respectively.

Claims (1)

1. a kind of dynamic reactive power configuration method for considering large-scale wind electricity and barrier and abandoning wind problem, it is characterised in that this method packet Include following steps：
(1) object function for establishing power grid apoplexy field coupling node voltage feasible zone is as follows：
In above formula, subscript 0 indicates wind power plant normal running (operation) conditions, V0 POC,iWhen indicating wind power plant normal operation, i-th of wind power plant Switching node Voltage Security Region in Node, Δ qi 0Wind power generating set reactive power in i-th of wind power plant when expression normal operation Regulated quantity, Δ pi 0Indicate the wind-powered electricity generation fluctuation of wind power generating set in i-th of wind power plant, ciAnd siI-th of wind power plant is indicated respectively In all node active power and reactive power to the sensitivity matrix of voltage, subscript POC is the switching node of wind power plant；
Setting solves above-mentioned bound for objective function, and wherein voltage security constraints is：
vi 0=vi 0,current+s0Δqi 0+c0Δpi 0
Wind turbine active power Climing constant and reactive power Climing constant condition are：
Δpi o ≤Δpi 0≤0
Wind power plant common coupling node busbar voltage is set as V0 PCC=VPCC 0, given, in each step, common coupling node electricity Pressure value is expressed as VPCC 0,given=VPCC 0,current± mstep, wherein step are step-length, and it is step-length that the value of step-length, which is 0.01, m, Number, subscript PCC are wind power plant common coupling node；
Using the method for the derivation of equation, the Optimized model of above-mentioned object function and constraints composition is solved, wind power plant coupling is obtained Close the voltage feasible region V of node0 POC,i；
Wind power plant common coupling node voltage feasible region object function when (1-2) establishes normal operation：
Wherein, fAVSR PCCAnd fAVSR POC,iThe switching node of the common coupling node and i-th wind power plant of wind power plant is indicated respectively Voltage feasible region length：fAVSR POC,i=V0,(2) POC,i-V0,(1) POC,i, the expression of subscript 1 Feasible zone lower limit, 2 indicate the feasible zone upper limit；
The boundary condition of the autonomous Voltage Security Region in Node object function of power grid air control central side is as follows when setting normal operation：
s.t.Li Feasible(VPCC 0,(op),VPOC,i 0,(op))≥ciΔPi curt
VPOC,i 0,(1)≤VPOC,i 0,(2),
V0,(op)=V0,current+Sw 0ΔQw 0,(op)+Sg 0ΔQg 0,(op)+Cw 0ΔPcurt
Wherein, Li FeasibleObtained feasible region constraint is solved for step (1),Indicate the wind turbine of wind power plant when normal operation Total reactive power that group generates,Indicate the reactive power that the generator of power grid air control central side when normal operation generates, subscript G indicates that generator, following table w indicate wind power plant, and op=1 or 2 indicates feasible zone lower limit as op=1, as op=2, indicates The feasible zone upper limit；
Using the method for iterative solution, the Optimized model of above-mentioned object function and constraints composition is solved, is calculated normal The voltage feasible region of wind power plant common coupling node when operation
(2) voltage feasible region of the voltage feasible region and common coupling node of the wind power plant switching node obtained according to step (1), When establishing consideration wind power plant appearance " N-1 " accident, the autonomous Voltage Security Region in Node object function of power grid air control central side is：
Vs,(op)=V0,(op)+Us+Sw sΔQsvc 0,(op)
When setting the accident of " N-1 " boundary condition of the autonomous Voltage Security Region in Node object function of power grid air control central side as：
The constraint of the quiescent voltage compensator reactive power of power grid air control central side is：
Li Feasible(VPCC s,(op),VPOC,i s,(op))≥ciΔPi curt
Wherein, i=1,2 ..., Nw, s=1,2 ..., Ns, subscript SVC expression quiescent voltage compensators, NwIndicate wind power plant Quantity, NsWind-powered electricity generation number when N-1 type tripping faults occurs for expression, sets wind power plant all in wind power plant and tripping event occurs Barrier, Nw=Ns；Wherein, for generation " N-1 " accident when wind power plant switching node voltage feasible region, Sw sFor wind power plant reactive power pair The sensitivity of wind power plant switching node voltage；Subscript s is scenario, indicates the different operation conditions of different wind power plants, including Abandon wind state and malfunction；
Using the method for iterative solution, the Optimized model of above-mentioned object function and constraints composition is solved, is calculated " N-1 " The Voltage Security Region in Node V of air control central side when accidents,(op)；
(3) the autonomous Voltage Security Region in Node and V for establishing above-mentioned steps (2)s,(op)It is indicated, is included the following steps with inearized model：
Power grid air control central side autonomy Voltage Security Region in Node object function in above-mentioned steps (2) is expressed as form by (3-1)：
The boundary condition of the above-mentioned object function of setting solution unifies letter and is written as form：
S.t.Fz=d
z≥0
Under optimal electric network swim, above-mentioned variable z is defined as with minor function：
Wherein, Δ Q is the variable quantity of the reactive power of wind power plant, Δ PcurtFor wind power plant, in the case where abandoning wind state, active power changes Amount, C1、C2、C3、CconstantConstant coefficient respectively after the derivation of equation；
Matrix F, Z in (3-2) decomposition (3-1)：
F=[FB FN]
Wherein, FBFor optimal basic matrix, FNTo acquire remaining matrix after optimal basic matrix；ZBIt is and FBCorresponding matrix of variables, Work as FBFor Optimal matrix when, ZN=0；
(4) according to the derivation method of above-mentioned steps (3), the object function of the allocation optimum of wind power plant dynamic reactive power is established：
The boundary condition of above-mentioned object function is：
s.t.Δfn AVSR=λn QΔqsvc,n+λn PΔPn curt
fn AVSR,current+Δfn AVSR≥fn AVSR,require
N=1,2 ..., N
Wherein, N indicates the quantity of wind power plant operating status, ρnIndicate the possibility of n operating status, qunit svcIndicate each The minimum dynamic reactive power partition capacity of wind power plant and common coupling node substation, xi·qunit svcAnd xPCC·qunit svcPoint I-th of wind power plant and the dynamic reactive power partition capacity of common coupling node substation are not indicated.
CN201810618398.3A 2018-06-15 2018-06-15 It reduces large-scale wind electricity and the dynamic reactive power configuration method of wind problem is abandoned in barrier Pending CN108683197A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112968441A (en) * 2021-03-12 2021-06-15 内蒙古科技大学 Power grid planning method applied to large-scale wind power base
CN114094595A (en) * 2021-11-19 2022-02-25 西安交通大学 Direct-current cluster near-zone voltage recovery control method based on multi-station voltage track sensitivity

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362643A (en) * 2014-10-10 2015-02-18 国家电网公司 Method for calculating reactive compensation configured capacity for wind farm

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104362643A (en) * 2014-10-10 2015-02-18 国家电网公司 Method for calculating reactive compensation configured capacity for wind farm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAO NIU等: "Dynamic reactive power optimal allocation to decrease wind power curtailment in a large-scale wind power integration area", 《IET RENEWABLE POWER GENERATION》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112968441A (en) * 2021-03-12 2021-06-15 内蒙古科技大学 Power grid planning method applied to large-scale wind power base
CN114094595A (en) * 2021-11-19 2022-02-25 西安交通大学 Direct-current cluster near-zone voltage recovery control method based on multi-station voltage track sensitivity

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