CN108923464A - The building of doubly fed induction generator three-phase imbalance steady-state model, emulation mode and device - Google Patents
The building of doubly fed induction generator three-phase imbalance steady-state model, emulation mode and device Download PDFInfo
- Publication number
- CN108923464A CN108923464A CN201810861170.7A CN201810861170A CN108923464A CN 108923464 A CN108923464 A CN 108923464A CN 201810861170 A CN201810861170 A CN 201810861170A CN 108923464 A CN108923464 A CN 108923464A
- Authority
- CN
- China
- Prior art keywords
- sequence impedance
- induction generator
- doubly fed
- fed induction
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006698 induction Effects 0.000 title claims abstract description 263
- 230000009466 transformation Effects 0.000 claims abstract description 49
- 238000010276 construction Methods 0.000 claims abstract description 28
- 230000001052 transient effect Effects 0.000 claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 28
- 238000000819 phase cycle Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 12
- 238000010248 power generation Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 16
- 238000004804 winding Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
Abstract
The present invention provides a kind of building of doubly fed induction generator three-phase imbalance steady-state model, emulation mode and device, construction methods to include：Stator side equation and rotor-side equation to the d-q dynamic model of induction machine carry out Laplace transformation；Stator d-q shaft voltage equation after Laplace transformation is synthesized to obtain stator voltage space vector expression formula, rotor d-q shaft voltage equation after Laplace transformation is synthesized to obtain rotor voltage space vector expression formula, and is derived by the positive sequence impedance and negative sequence impedance of the induction machine；Rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance and grid-side converter positive sequence impedance and simultaneously grid-side converter negative sequence impedance are established, and doubly fed induction generator positive sequence impedance and doubly fed induction generator negative sequence impedance is calculated；Doubly fed induction generator three-phase imbalance steady-state model is established according to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance.The present invention can be improved the speed of electromagnetic transient simulation.
Description
Technical field
The present invention relates to technical field of electric power more particularly to a kind of doubly fed induction generator three-phase imbalance steady-state model structures
It builds, emulation mode and device.
Background technique
Northern station wind power plant exveral phenomena about voltage imbalance is examined to reproduction, it is necessary to carry out three-phase imbalance to northern station wind power plant is examined
Electromagnetic transient simulation, but the large-scale wind power field electromagnetic transient simulation time is usually too long.Therefore, it needs a kind of for electromagnetism
The doubly fed induction generator three-phase imbalance steady-state model of transient emulation initialization, examines northern station wind power plant electromagnetic transient simulation to improve
Speed reappears its exveral phenomena about voltage imbalance.
Summary of the invention
The present invention provides a kind of building of doubly fed induction generator three-phase imbalance steady-state model, emulation mode and device, to mention
High extensive wind power plant electromagnetic transient simulation speed.
The embodiment of the present invention provides a kind of doubly fed induction generator three-phase imbalance steady-state model construction method, including：To sense
The stator side equation and rotor-side equation for answering the d-q dynamic model of motor carry out Laplace transformation, the stator after obtaining Laplace transformation
Rotor d-q shaft voltage equation after d-q shaft voltage equation and Laplace transformation；To the stator d-q shaft voltage after the Laplace transformation
Equation is synthesized to obtain stator voltage space vector expression formula, to the rotor d-q shaft voltage equation after the Laplace transformation into
Row synthesis obtains rotor voltage space vector expression formula；According to the stator voltage space vector expression formula and the rotor voltage
Space vector expression formula is derived by the positive sequence impedance and negative sequence impedance of the induction machine；Establish the resistance of rotor-side converter positive sequence
Anti-, rotor-side converter negative sequence impedance and grid-side converter positive sequence impedance and simultaneously grid-side converter negative sequence impedance；According to double-fed sense
Motor positive sequence circuit, the positive sequence impedance of the induction machine, the rotor-side converter positive sequence impedance and described and net side is answered to become
Doubly fed induction generator positive sequence impedance is calculated in stream device positive sequence impedance, according to doubly fed induction generator negative phase-sequence circuit, the induced electricity
Double-fed sense is calculated in the negative sequence impedance of machine, the rotor-side converter negative sequence impedance and described and grid-side converter negative sequence impedance
Answer motor negative sequence impedance；According to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance, establish double
Present induction machine three-phase imbalance steady-state model.
The embodiment of the present invention separately provides a kind of doubly fed induction generator three-phase imbalance electromagnetical transient emulation method, including：Benefit
Use the solution of the doubly fed induction generator three-phase imbalance steady-state model as described in Claims 1-4 initial as electromagnetic transient simulation
Value carries out doubly fed induction generator three-phase imbalance electromagnetic transient simulation.
The embodiment of the present invention separately provides a kind of doubly fed induction generator three-phase imbalance steady-state model construction device, including：It draws
Family name's converter unit, is used for：Stator side equation and rotor-side equation to the d-q dynamic model of induction machine carry out Laplace transformation,
Stator d-q shaft voltage equation after obtaining Laplace transformation and the rotor d-q shaft voltage equation after Laplace transformation；Vector modulation list
Member is used for：Stator d-q shaft voltage equation after the Laplace transformation is synthesized to obtain the expression of stator voltage space vector
Formula is synthesized to obtain rotor voltage space vector expression formula to the rotor d-q shaft voltage equation after the Laplace transformation；Induction
Motor impedance generation unit, is used for：According to the stator voltage space vector expression formula and the rotor voltage space vector table
The positive sequence impedance and negative sequence impedance of the induction machine are derived by up to formula；Rotor-side and simultaneously grid-side converter impedance generate single
Member is used for：Establish rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance, and grid-side converter positive sequence impedance and
And grid-side converter negative sequence impedance；Doubly fed induction generator impedance generation unit, is used for：According to doubly fed induction generator positive sequence circuit,
The positive sequence impedance of the induction machine, the rotor-side converter positive sequence impedance and described and grid-side converter positive sequence impedance calculate
Doubly fed induction generator positive sequence impedance is obtained, according to doubly fed induction generator negative phase-sequence circuit, the negative sequence impedance, described of the induction machine
Doubly fed induction generator negative sequence impedance is calculated in rotor-side converter negative sequence impedance and described and grid-side converter negative sequence impedance；Surely
States model generation unit, is used for：According to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance, build
Vertical doubly fed induction generator three-phase imbalance steady-state model.
The embodiment of the present invention separately provides a kind of computer readable storage medium, is stored thereon with computer program, the program
The step of above-described embodiment the method is realized when being executed by processor.
The embodiment of the present invention separately provides a kind of computer equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize above-described embodiment the method when executing described program
Step.
Doubly fed induction generator three-phase imbalance steady-state model construction method, the doubly fed induction generator three-phase of the embodiment of the present invention
Uneven electromagnetical transient emulation method, doubly fed induction generator three-phase imbalance steady-state model construction device, computer-readable storage
Medium and computer equipment, by realizing when constructing doubly fed induction generator three-phase imbalance steady-state model by doubly fed induction generator
Positive-negative sequence impedance takes into account, and can be improved the accuracy of doubly fed induction generator three-phase imbalance steady-state model.Carrying out double-fed
When induction machine three-phase imbalance electromagnetic transient simulation, using the solution of doubly fed induction generator three-phase imbalance steady-state model as just
Initial value can be improved the speed of electromagnetic transient simulation.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.In the accompanying drawings：
Fig. 1 is the process signal of the doubly fed induction generator three-phase imbalance steady-state model construction method of one embodiment of the invention
Figure.
Fig. 2 is to be derived by sense according to stator voltage space vector and rotor voltage space vector in one embodiment of the invention
Answer the positive sequence impedance of motor and the method flow schematic diagram of negative sequence impedance.
Fig. 3 is that rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance, simultaneously are established in one embodiment of the invention
Grid-side converter positive sequence impedance and the simultaneously method flow schematic diagram of grid-side converter negative sequence impedance.
Fig. 4 is current transformer current control block diagram representation in one embodiment of the invention.
Fig. 5 is doubly fed induction generator positive sequence circuit diagram in one embodiment of the invention.
Fig. 6 is doubly fed induction generator negative phase-sequence circuit diagram in one embodiment of the invention.
Fig. 7 is to be built in one embodiment of the invention according to doubly fed induction generator positive sequence impedance and doubly fed induction generator negative sequence impedance
The method flow schematic diagram of vertical doubly fed induction generator three-phase imbalance steady-state model.
Fig. 8 is the structural representation of the doubly fed induction generator three-phase imbalance steady-state model construction device of one embodiment of the invention
Figure.
Specific embodiment
Understand in order to make the object, technical scheme and advantages of the embodiment of the invention clearer, with reference to the accompanying drawing to this hair
Bright embodiment is described in further details.Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Fig. 1 is the process signal of the doubly fed induction generator three-phase imbalance steady-state model construction method of one embodiment of the invention
Figure.As shown in Figure 1, the doubly fed induction generator three-phase imbalance steady-state model construction method of the present embodiment, it may include：
Step S110：Stator side equation and rotor-side equation to the d-q dynamic model of induction machine carry out Laplace transformation,
Stator d-q shaft voltage equation after obtaining Laplace transformation and the rotor d-q shaft voltage equation after Laplace transformation；
Step S120：Stator d-q shaft voltage equation after the Laplace transformation is synthesized to obtain stator voltage space
Vector expression is synthesized to obtain rotor voltage space vector table to the rotor d-q shaft voltage equation after the Laplace transformation
Up to formula；
Step S130：It is pushed away according to the stator voltage space vector expression formula and the rotor voltage space vector expression formula
It leads to obtain the positive sequence impedance and negative sequence impedance of the induction machine；
Step S140：Establish rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance and grid-side converter just
Sequence impedance and simultaneously grid-side converter negative sequence impedance；
Step S150：Become according to doubly fed induction generator positive sequence circuit, the positive sequence impedance of the induction machine, the rotor-side
Doubly fed induction generator positive sequence impedance is calculated in stream device positive sequence impedance and described and grid-side converter positive sequence impedance, according to double-fed sense
Motor negative phase-sequence circuit, the negative sequence impedance of the induction machine, the rotor-side converter negative sequence impedance and described and net side is answered to become
Doubly fed induction generator negative sequence impedance is calculated in stream device negative sequence impedance；
Step S160：According to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance, establish
Doubly fed induction generator three-phase imbalance steady-state model.
In above-mentioned steps S110, Laplace transformation is carried out to the stator side equation of the d-q dynamic model of induction machine, is obtained
Stator d-q shaft voltage equation after Laplace transformation；Laplace change is carried out to the rotor-side equation of the d-q dynamic model of induction machine
It changes, the rotor d-q shaft voltage equation after obtaining Laplace transformation.The induction machine for example can be wound induction motor.The d-q
Dynamic model, which can according to need, to be constructed.
In some embodiments, the stator side equation of wound induction motor q-d model can be：
λqs=Llsiqs+Lm(iqs+i'qr), λds=Llsids+Lm(ids+i'dr) (2)
Wherein, vqsAnd vdsRespectively stator winding q and d shaft voltage, iqsAnd idsRespectively determine the sub- q and d shaft current of winding,
λqsAnd λdsRespectively stator winding q and d axis magnetic linkage, rsFor stator winding resistance, ω is synchronous rotary angular speed, and t is time change
Amount, i'qrAnd i'drRespectively q and d shaft current of the rotor windings conversion to stator side, LlsFor stator leakage inductance, LmFor mutual inductance.
In some embodiments, the rotor-side equation of wound induction motor q-d model can be：
λ'qr=L'lri'qr+Lm(i'qr+iqs), λ 'dr=L'lri'dr+Lm(i'dr+ids) (4)
Wherein, v'qrAnd v'drRespectively q and d shaft voltage of the rotor windings conversion to stator side, i'qrAnd i'drRespectively turn
Q and d shaft current of the sub- winding conversion to stator side, λ 'qrWith λ 'drRespectively q and d axis magnetic of the rotor windings conversion to stator side
Chain, rr' it is resistance of the rotor windings conversion to stator side, ωrFor rotor velocity, L'lrFor the leakage of rotor conversion to stator side
Sense.
Formula (2) are substituted into formula (1) and carry out Laplace transformation, obtain formula (5)：
vqs=(rs+sLls+sLm)iqs+ω(Lls+Lm)ids+ωLmi'dr+sLmi'qr <1>
vds=(rs+sLls+sLm)ids-ω(Lls+Lm)iqs-ωLmi'qr+sLmi'dr <2>
Formula (4) are substituted into formula (3) and carry out Laplace transformation, obtain formula (6)：
v'qr=(r 'r+sL'lr+sLm)i'qr+(ω-ωr)(L'lr+Lm)i'dr+(ω-ωr)Lmids+sLmiqs <1>
v'dr=(r 'r+sL'lr+sLm)i'dr-(ω-ωr)(L'lr+Lm)i'qr-(ω-ωr)Lmiqs+sLmids <2>
In above-mentioned steps S120, the stator d-q shaft voltage equation after the Laplace transformation can be synthesized to obtain
The stator voltage space vector expression formula of plural number, is synthesized to obtain to the rotor d-q shaft voltage equation after the Laplace transformation
The rotor voltage space vector expression formula of plural number.
In some embodiments, the stator d-q shaft voltage equation after Laplace transformation can be obtained by formula (5), to formula (5)
It presses<1>-j<2>It is synthesized, obtains stator voltage space vector expression formula：
Wherein,For stator voltage space vector, s is Laplace operator,For stator current,For rotor current.
In some embodiments, the rotor d-q shaft voltage equation after Laplace transformation can be obtained by formula (6), to formula (6)
It presses<1>-j<2>It is synthesized, obtains rotor voltage space vector expression formula：
Wherein,For rotor voltage space vector.
In formula (7) and (8),For the plural number changed over time, and have：
It, can be first empty according to the stator voltage space vector expression formula and the rotor voltage in above-mentioned steps S130
Between vector expression be derived by the positive sequence impedance of the induction machine, obtain institute further according to the positive sequence impedance of the induction machine
State the negative sequence impedance of induction machine.
Fig. 2 is to be derived by sense according to stator voltage space vector and rotor voltage space vector in one embodiment of the invention
Answer the positive sequence impedance of motor and the method flow schematic diagram of negative sequence impedance.As shown in Fig. 2, in above-mentioned steps S130, according to fixed
Sub- space vector of voltage and rotor voltage space vector are derived by the positive sequence impedance of induction machine and the method for negative sequence impedance, can
Including：
Step S131：It is pushed away according to the stator voltage space vector expression formula and the rotor voltage space vector expression formula
It leads to obtain based on the stator voltage space vector of d-q reference frame and the relationship of stator current space vector；
Step S132：It will be based on the stator voltage space vector of d-q reference frame and the pass of stator current space vector
System is transformed into abc reference frame, obtains the stator positive sequence voltage under abc reference frame, and according to the stator positive sequence electricity
Pressure obtains the positive sequence impedance of the induction machine；
Step S133：It is negated by the symbol of the rotor velocity in the positive sequence impedance to the induction machine, obtains institute
State the negative sequence impedance of induction machine.
In some embodiments, in above-mentioned steps S131, the stator voltage space vector expression formula can be formula
(7), the rotor voltage space vector expression formula can be formula (8), will be in formula (8) using formula (7)WithWith
It indicates, is calculated：
Formula (10) is derived based on dq rotating coordinate system, the concept of positive-negative sequence be relative to abc reference frame,
Therefore formula (10) need to be transformed into abc reference frame.
In some embodiments, in above-mentioned steps S132, by based on d-q reference frame stator voltage space vector with
The relation formula (10) of stator current space vector is transformed into abc reference frame, is obtaining stator under abc reference frame just
Sequence voltage is：
Wherein,For stator positive sequence voltage,For stator current resultant vector,ZFor induction machine positive sequence impedance,To turn
Sub- voltage resultant vector.
The positive sequence impedance Z of wound induction motor can be obtained according to the stator positive sequence voltage formula (11)im,pFor：
Due to rotor direction of rotation in rotor direction of rotation and positive sequence network in negative sequence network on the contrary, therefore, in above-mentioned step
In rapid S133, for example, can be by rotor angular velocity omega in formula (12) positive sequence impedance modelrSymbol negates, and negative sequence impedance can be obtained
Zim,n, as follows：
In above-mentioned steps S140, such as the resistance of rotor-side converter positive sequence can be established according to current transformer current control figure
Anti-, rotor-side converter negative sequence impedance and grid-side converter positive sequence impedance and simultaneously grid-side converter negative sequence impedance.It is worth explanation
It is that step S140 can be located at before or after step S110~step S130 either step.
Fig. 3 is that rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance, simultaneously are established in one embodiment of the invention
Grid-side converter positive sequence impedance and the simultaneously method flow schematic diagram of grid-side converter negative sequence impedance.As shown in figure 3, in above-mentioned steps
In S140, rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance and grid-side converter positive sequence impedance and simultaneously are established
The method of grid-side converter negative sequence impedance, it may include：
Step S141：Current transformer voltage vector, which is generated, according to current transformer current control figure expresses formula；
Step S142：Formula, which is expressed, according to the current transformer voltage vector obtains current transformer positive sequence impedance and the resistance of current transformer negative phase-sequence
It is anti-；
Step S143：Rotor-side converter positive sequence impedance and and grid-side converter are obtained according to the current transformer positive sequence impedance
Positive sequence impedance obtains rotor-side converter negative sequence impedance and and grid-side converter negative phase-sequence resistance according to the current transformer negative sequence impedance
It is anti-.
In above-mentioned steps S141, current transformer current control figure can as shown in figure 4, in Fig. 4,Indicate q axis with reference to electricity
Stream,Indicate d axis reference current, iqIndicate q shaft current, idIndicate d shaft current, KdIndicate that the coefficient of coup of dq axis, H (s) indicate
The transmission function of controller, va、vb、vcRespectively indicate stator three-phase current.Control block diagram as shown in Figure 4 is available：
Wherein, HiIt (s) is controller transfer function.
Similar to formula (7), carrying out synthesis using formula (14) can be obtained current transformer voltage vector expression formula：
Wherein,For current transformer voltage,For current transformer reference current vector,For current transformer actual current.
In above-mentioned steps S142, such as formula formula (15) are expressed according to the current transformer voltage vector and are obtaining current transformer just
Sequence impedance, it is as follows：
Hi(s-jω)-jKd (16)
Wherein, Hi(s-j ω) is the controller transfer function of current transformer positive sequence circuit.
Formula formula (15), which are expressed, according to the current transformer voltage vector obtains current transformer negative sequence impedance, it is as follows：
Hi(s+jω)+jKd (17)
Wherein, Hi(s+j ω) is the controller transfer function of negative phase-sequence circuit.
In above-mentioned steps S143, for its positive sequence impedance of rotor-side converter ZRSC,pFor：
ZRSC,p=Hr(s-jω)-jKdr, wherein Hr(s-j ω) is that rotor-side converter positive sequence circuit controller transmits letter
Number, KdrFor the coupling of rotor dq shaft current.
Negative sequence impedance ZRSC,nFor：
ZRSC,n=Hr(s+jω)+jKdr, wherein Hr(s+j ω) is that rotor-side converter negative phase-sequence circuit controller transmits letter
Number.
Similarly, simultaneously grid-side converter positive sequence impedance model Z can be obtainedGSC,pFor：
ZGSC,p=Hg(s-jω)-jKdg, wherein Hg(s-j ω) is grid-side converter positive sequence circuit controller transmission function,
KdgFor the simultaneously net side dq shaft current coefficient of coup.
Negative sequence impedance ZGSC,nFor：
ZGSC,n=Hg(s+jω)+jKdg, wherein Hg(s+j ω) is that simultaneously grid-side converter negative phase-sequence circuit controller transmits letter
Number.
In above-mentioned steps S150, doubly fed induction generator positive sequence circuit can be as shown in Figure 5, wherein ZrscIndicate rotor-side electricity
Die mould current transformer positive sequence impedance, ZgscIndicate simultaneously net side Voltage type converter positive sequence impedance, LTIndicate filter inductance, L'rIndicate folding
Calculate stator side rotor-side leakage inductance, LsIndicate stator inductance, LmIndicate mutual inductance,Indicate rotor current reference value,Indicate grid-connected
Side Inverter circuit reference value.According to the positive sequence impedance of the induction machine, the rotor-side converter positive sequence impedance and described
And grid-side converter positive sequence impedance, doubly fed induction generator positive sequence impedance can be calculated according to doubly fed induction generator positive sequence circuit.
Doubly fed induction generator negative phase-sequence circuit is as shown in Figure 6, wherein Z* rscIndicate the impedance of rotor-side inverter, Z* gscIndicate the simultaneously net side change of current
Device impedance.According to the negative sequence impedance of the induction machine, the rotor-side converter negative sequence impedance and described and grid-side converter
Doubly fed induction generator negative sequence impedance can be calculated according to doubly fed induction generator negative phase-sequence circuit in negative sequence impedance.
In some embodiments, the positive sequence impedance Z of doubly fed induction generator (DFIG) is calculated according to Fig. 5dfig,pCan be：
In some embodiments, the negative sequence impedance Z of doubly fed induction generator (DFIG) is calculated according to Fig. 6dfig,nCan be：
Fig. 7 is to be built in one embodiment of the invention according to doubly fed induction generator positive sequence impedance and doubly fed induction generator negative sequence impedance
The method flow schematic diagram of vertical doubly fed induction generator three-phase imbalance steady-state model.As shown in fig. 7, in above-mentioned steps S160,
According to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance, doubly fed induction generator three-phase is established not
The method for balancing steady-state model, it may include：
Step S161：Double-fed sense is calculated using doubly fed induction generator positive sequence voltage and the doubly fed induction generator positive sequence impedance
Motor forward-order current is answered, calculates double-fed induction using doubly fed induction generator negative sequence voltage and the doubly fed induction generator negative sequence impedance
Motor negative-sequence current；
Step S162：Utilize the doubly fed induction generator positive sequence voltage, the doubly fed induction generator negative sequence voltage, described pair
Presenting induction machine forward-order current and the doubly fed induction generator negative-sequence current indicates active power and reactive power, double-fed induction electricity
Machine three-phase imbalance steady-state model includes the doubly fed induction generator forward-order current, the doubly fed induction generator negative-sequence current, table
The active power shown and the reactive power represented.
Doubly fed induction generator three-phase imbalance steady-state model may include the doubly fed induction generator forward-order current, the double-fed
Induction machine negative-sequence current, the active power represented and the reactive power represented, this tittle can according to Ohm's law,
The equation group that Kirchhoff's second law obtains.
In some embodiments, doubly fed induction generator current equation can be：
Wherein,For doubly fed induction generator forward-order current,For doubly fed induction generator negative-sequence current,For double-fed induction electricity
Machine positive sequence voltage,For doubly fed induction generator negative sequence voltage.
Doubly fed induction generator positive sequence voltageWith doubly fed induction generator negative sequence voltageIt can be in stable model solution procedure
Setting obtains.
Induction machine injecting power equation can be：
Wherein, P, Q respectively indicate doubly fed induction generator three-phase and always add active power and reactive power.P, Q can be known
Amount.
The equation group of formula (20)~(23) composition is the three-phase imbalance steady-state model of DFIG, which, which can be, does not examine
Consider the wound induction motor three-phase imbalance steady-state model of main magnetic circuit saturation.In equation group, unknown quantity number：4, packet
It includes：Forward-order currentAmplitude and phase angle, negative-sequence currentAmplitude and phase angle；Equation number：4, including：Formula (20)
(21)(22)(23)；Unknown quantity number is equal to equation number, and stable model can solve.
In order to be based on wind power plant three-phase imbalance electromagnetic transient simulation time-consuming problem, the double-fed induction three-phase in embodiment is not
Steady-state model is balanced, it is initial dedicated for the wind power plant three-phase imbalance electromagnetic transient simulation of the doubly fed induction generator containing Wound-rotor type
Change, improves the wind power plant three-phase imbalance electromagnetic transient simulation speed containing doubly fed induction generator.In one embodiment, double-fed induction
The constructing plan of three-phase imbalance steady-state model may include：1) to stator side equation, the rotor of the d-q dynamic model of induction machine
Side journey carries out Laplace transformation；2) transformed stator d-q shaft voltage equation is synthesized into stator voltage space vector, will equally become
Rotor d-q shaft voltage equation after changing synthesizes rotor voltage space vector；3) stator voltage vector and stator current space are derived
Vector correlation obtains induction machine positive-negative sequence impedance；4) rotor-side converter positive sequence and negative phase-sequence equivalent circuit are established, is established grid-connected
Side current transformer positive sequence and negative phase-sequence equivalent circuit；5) by induction machine positive sequence circuit, rotor-side converter and simultaneously grid-side converter conjunction
At doubly fed induction generator positive sequence equivalent circuit, doubly fed induction generator negative phase-sequence equivalent circuit is similarly synthesized；6) based on double-fed induction electricity
Machine positive-negative sequence equivalent circuit establishes doubly fed induction generator three-phase imbalance steady-state model.
The embodiment of the present invention also provides a kind of doubly fed induction generator three-phase imbalance electromagnetical transient emulation method, including：Benefit
Use the solution of doubly fed induction generator three-phase imbalance steady-state model described in the various embodiments described above as electromagnetic transient simulation initial value,
Carry out doubly fed induction generator three-phase imbalance electromagnetic transient simulation.In the present embodiment, doubly fed induction generator three-phase can be first solved
Uneven steady-state model obtains the amplitude of forward-order current and the amplitude and phase angle of phase angle and negative-sequence current, as transient emulation
Initial value carries out doubly fed induction generator three-phase imbalance electromagnetic transient simulation.
Based on inventive concept identical with doubly fed induction generator three-phase imbalance steady-state model construction method shown in FIG. 1,
The embodiment of the present application also provides a kind of doubly fed induction generator three-phase imbalance steady-state model construction devices, such as following example institute
It states.The principle and doubly fed induction generator three solved the problems, such as due to the doubly fed induction generator three-phase imbalance steady-state model construction device
Mutually uneven steady-state model construction method is similar, therefore the reality of the doubly fed induction generator three-phase imbalance steady-state model construction device
The implementation that may refer to doubly fed induction generator three-phase imbalance steady-state model construction method is applied, overlaps will not be repeated.
Fig. 8 is the structural representation of the doubly fed induction generator three-phase imbalance steady-state model construction device of one embodiment of the invention
Figure.As shown in figure 8, the doubly fed induction generator three-phase imbalance steady-state model construction device of the present embodiment, it may include：Laplace transformation
Unit 210, Vector modulation unit 220, induction machine impedance generation unit 230, rotor-side and simultaneously grid-side converter impedance generation
Unit 240, doubly fed induction generator impedance generation unit 250 and steady-state model generation unit 260, above-mentioned each unit can sequentially connect
It connects.
Laplace transformation unit 210, is used for：To the stator side equation and rotor-side equation of the d-q dynamic model of induction machine
Carry out Laplace transformation, the stator d-q shaft voltage equation after obtaining Laplace transformation and the shaft voltage side rotor d-q after Laplace transformation
Journey；
Vector modulation unit 220, is used for：Stator d-q shaft voltage equation after the Laplace transformation is synthesized to obtain
Stator voltage space vector expression formula synthesizes the rotor d-q shaft voltage equation after the Laplace transformation to obtain rotor electricity
Press space vector expression formula；
Induction machine impedance generation unit 230, is used for：According to the stator voltage space vector expression formula and the rotor
Space vector of voltage expression formula is derived by the positive sequence impedance and negative sequence impedance of the induction machine；
Rotor-side and simultaneously grid-side converter impedance generation unit 240, are used for：It establishes rotor-side converter positive sequence impedance, turn
Sub- side current transformer negative sequence impedance and grid-side converter positive sequence impedance and simultaneously grid-side converter negative sequence impedance；
Doubly fed induction generator impedance generation unit 250, is used for：According to doubly fed induction generator positive sequence circuit, the induced electricity
Double-fed sense is calculated in the positive sequence impedance of machine, the rotor-side converter positive sequence impedance and described and grid-side converter positive sequence impedance
Motor positive sequence impedance is answered, according to doubly fed induction generator negative phase-sequence circuit, the negative sequence impedance of the induction machine, the rotor-side unsteady flow
Doubly fed induction generator negative sequence impedance is calculated in device negative sequence impedance and described and grid-side converter negative sequence impedance；
Steady-state model generation unit 260, is used for：According to the doubly fed induction generator positive sequence impedance and double-fed induction electricity
Machine negative sequence impedance establishes doubly fed induction generator three-phase imbalance steady-state model.
In some embodiments, the induction machine impedance generation unit 230, it may include：Voltage and current relationship generates mould
Block, induction machine positive sequence impedance generation module and induction machine negative sequence impedance generation module, above-mentioned each module can be linked in sequence.
Voltage and current relation generation module, is used for：According to the stator voltage space vector expression formula and the rotor
Space vector of voltage expression formula is derived by stator voltage space vector and stator current space arrow based on d-q reference frame
The relationship of amount；
Induction machine positive sequence impedance generation module, is used for：By based on d-q reference frame stator voltage space vector with
The transformation of stator current space vector obtains the stator positive sequence voltage under abc reference frame to abc reference frame,
And the positive sequence impedance of the induction machine is obtained according to the stator positive sequence voltage；
Induction machine negative sequence impedance generation module, is used for：Pass through the rotor angle in the positive sequence impedance to the induction machine
The symbol of speed negates, and obtains the negative sequence impedance of the induction machine.
In some embodiments, the rotor-side and simultaneously grid-side converter impedance generation unit 240, it may include：Current transformer electricity
Press vector expression generation module, current transformer positive-negative sequence impedance generation module and rotor-side and simultaneously grid-side converter impedance generation mould
Block, above-mentioned each module can be linked in sequence.
Current transformer voltage vector expresses formula generation module, is used for：Current transformer voltage is generated according to current transformer current control figure
Vector expression；
Current transformer positive-negative sequence impedance generation module, is used for：Formula, which is expressed, according to the current transformer voltage vector obtains current transformer
Positive sequence impedance and current transformer negative sequence impedance；
Rotor-side and simultaneously grid-side converter impedance generation module, are used for：Rotor is obtained according to the current transformer positive sequence impedance
Side current transformer positive sequence impedance and simultaneously grid-side converter positive sequence impedance, obtain rotor-side converter according to the current transformer negative sequence impedance
Negative sequence impedance and and grid-side converter negative sequence impedance.
In some embodiments, the steady-state model generation unit 260, it may include：Doubly fed induction generator positive-negative sequence current is raw
At module and active and reactive power generation module, above-mentioned each module can be linked in sequence.
Doubly fed induction generator positive-negative sequence current generation module, is used for：Utilize doubly fed induction generator positive sequence voltage and described pair
It presents induction machine positive sequence impedance and calculates doubly fed induction generator forward-order current, utilize doubly fed induction generator negative sequence voltage and the double-fed
Induction machine negative sequence impedance calculates doubly fed induction generator negative-sequence current；
Active and reactive power generation module, is used for：Utilize the doubly fed induction generator positive sequence voltage, the double-fed induction
Motor negative sequence voltage, the doubly fed induction generator forward-order current and the doubly fed induction generator negative-sequence current indicate active power and
Reactive power, doubly fed induction generator three-phase imbalance steady-state model include the doubly fed induction generator forward-order current, the double-fed
Induction machine negative-sequence current, the active power represented and the reactive power represented.
The embodiment of the present invention also provides a kind of doubly fed induction generator three-phase imbalance electromagnetic transient simulation, utilizes above-mentioned each reality
It applies doubly fed induction generator three-phase imbalance steady-state model construction device described in example and carries out transient emulation initialization.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the program
The step of the various embodiments described above the method is realized when being executed by processor.
The embodiment of the present invention also provides a kind of computer equipment, including memory, processor and storage are on a memory simultaneously
The computer program that can be run on a processor, the processor realize the various embodiments described above the method when executing described program
The step of.
In conclusion the doubly fed induction generator three-phase imbalance steady-state model construction method of the embodiment of the present invention, double-fed sense
It answers motor three-phase imbalance electromagnetical transient emulation method, doubly fed induction generator three-phase imbalance steady-state model construction device, calculate
Machine readable storage medium storing program for executing and computer equipment, will be double by realizing when constructing doubly fed induction generator three-phase imbalance steady-state model
Feedback induction machine positive-negative sequence impedance takes into account, and can be improved the accuracy of doubly fed induction generator three-phase imbalance steady-state model.
When carrying out doubly fed induction generator three-phase imbalance electromagnetic transient simulation, doubly fed induction generator three-phase imbalance steady-state model is utilized
Solution as initial value, can be improved the speed of electromagnetic transient simulation.
In the description of this specification, reference term " one embodiment ", " specific embodiment ", " some implementations
Example ", " such as ", the description of " example ", " specific example " or " some examples " etc. mean it is described in conjunction with this embodiment or example
Particular features, structures, materials, or characteristics are included at least one embodiment or example of the invention.In the present specification,
Schematic expression of the above terms may not refer to the same embodiment or example.Moreover, the specific features of description, knot
Structure, material or feature can be combined in any suitable manner in any one or more of the embodiments or examples.Each embodiment
Involved in the step of sequence be used to schematically illustrate implementation of the invention, sequence of steps therein is not construed as limiting, can be as needed
It appropriately adjusts.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
Particular embodiments described above has carried out further in detail the purpose of the present invention, technical scheme and beneficial effects
Describe in detail it is bright, it should be understood that the above is only a specific embodiment of the present invention, the guarantor being not intended to limit the present invention
Range is protected, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (11)
1. a kind of doubly fed induction generator three-phase imbalance steady-state model construction method, which is characterized in that including：
Stator side equation and rotor-side equation to the d-q dynamic model of induction machine carry out Laplace transformation, obtain Laplace transformation
Rotor d-q shaft voltage equation after rear stator d-q shaft voltage equation and Laplace transformation；
Stator d-q shaft voltage equation after the Laplace transformation is synthesized to obtain stator voltage space vector expression formula, it is right
Rotor d-q shaft voltage equation after the Laplace transformation is synthesized to obtain rotor voltage space vector expression formula；
The sense is derived by according to the stator voltage space vector expression formula and the rotor voltage space vector expression formula
Answer the positive sequence impedance and negative sequence impedance of motor；
Establish rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance and grid-side converter positive sequence impedance and grid-connected
Side current transformer negative sequence impedance；
According to doubly fed induction generator positive sequence circuit, the positive sequence impedance of the induction machine, the rotor-side converter positive sequence impedance
And doubly fed induction generator positive sequence impedance is calculated in described and grid-side converter positive sequence impedance, according to doubly fed induction generator negative phase-sequence electricity
Road, the negative sequence impedance of the induction machine, the rotor-side converter negative sequence impedance and described and grid-side converter negative sequence impedance
Doubly fed induction generator negative sequence impedance is calculated；
According to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance, doubly fed induction generator three is established
Mutually uneven steady-state model.
2. doubly fed induction generator three-phase imbalance steady-state model construction method as described in claim 1, which is characterized in that according to
The stator voltage space vector and the rotor voltage space vector are derived by the positive sequence impedance of the induction machine and bear
Sequence impedance, including：
It is derived by according to the stator voltage space vector expression formula and the rotor voltage space vector expression formula based on d-q
The stator voltage space vector of reference frame and the relationship of stator current space vector；
The transformation of stator voltage space vector and stator current space vector based on d-q reference frame to abc is joined
Coordinate system is examined, obtains the stator positive sequence voltage under abc reference frame, and the induction is obtained according to the stator positive sequence voltage
The positive sequence impedance of motor；
It is negated by the symbol of the rotor velocity in the positive sequence impedance to the induction machine, obtains the negative of the induction machine
Sequence impedance.
3. doubly fed induction generator three-phase imbalance steady-state model construction method as described in claim 1, which is characterized in that establish
Rotor-side converter positive sequence impedance, rotor-side converter negative sequence impedance and grid-side converter positive sequence impedance and simultaneously grid-side converter
Negative sequence impedance, including：
Current transformer voltage vector, which is generated, according to current transformer current control figure expresses formula；
Formula, which is expressed, according to the current transformer voltage vector obtains current transformer positive sequence impedance and current transformer negative sequence impedance；
Rotor-side converter positive sequence impedance and simultaneously grid-side converter positive sequence impedance are obtained according to the current transformer positive sequence impedance, according to
The current transformer negative sequence impedance obtains rotor-side converter negative sequence impedance and and grid-side converter negative sequence impedance.
4. doubly fed induction generator three-phase imbalance steady-state model construction method as described in claim 1, which is characterized in that according to
The doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative sequence impedance, establish doubly fed induction generator three-phase imbalance
Steady-state model, including：
Doubly fed induction generator positive sequence electricity is calculated using doubly fed induction generator positive sequence voltage and the doubly fed induction generator positive sequence impedance
Stream calculates doubly fed induction generator negative phase-sequence electricity using doubly fed induction generator negative sequence voltage and the doubly fed induction generator negative sequence impedance
Stream；
Just using the doubly fed induction generator positive sequence voltage, the doubly fed induction generator negative sequence voltage, the doubly fed induction generator
Sequence electric current and the doubly fed induction generator negative-sequence current indicate active power and reactive power, doubly fed induction generator three-phase imbalance
Steady-state model includes the doubly fed induction generator forward-order current, the doubly fed induction generator negative-sequence current, the wattful power represented
Rate and the reactive power represented.
5. a kind of doubly fed induction generator three-phase imbalance electromagnetical transient emulation method, which is characterized in that including：
It is imitative using the solution of the doubly fed induction generator three-phase imbalance steady-state model as described in Claims 1-4 as electro-magnetic transient
True initial value carries out doubly fed induction generator three-phase imbalance electromagnetic transient simulation.
6. a kind of doubly fed induction generator three-phase imbalance steady-state model construction device, which is characterized in that including：
Laplace transformation unit, is used for：Stator side equation and rotor-side equation to the d-q dynamic model of induction machine carry out Laplace
Transformation, the stator d-q shaft voltage equation after obtaining Laplace transformation and the rotor d-q shaft voltage equation after Laplace transformation；
Vector modulation unit, is used for：Stator d-q shaft voltage equation after the Laplace transformation is synthesized to obtain stator voltage
Space vector expression formula synthesizes the rotor d-q shaft voltage equation after the Laplace transformation to obtain rotor voltage space arrow
Measure expression formula；
Induction machine impedance generation unit, is used for：It is empty according to the stator voltage space vector expression formula and the rotor voltage
Between vector expression be derived by the positive sequence impedance and negative sequence impedance of the induction machine；
Rotor-side and simultaneously grid-side converter impedance generation unit, are used for：Establish rotor-side converter positive sequence impedance, rotor-side unsteady flow
Device negative sequence impedance and grid-side converter positive sequence impedance and simultaneously grid-side converter negative sequence impedance；
Doubly fed induction generator impedance generation unit, is used for：According to the positive sequence of doubly fed induction generator positive sequence circuit, the induction machine
Doubly fed induction generator is being calculated just in impedance, the rotor-side converter positive sequence impedance and described and grid-side converter positive sequence impedance
Sequence impedance is hindered according to doubly fed induction generator negative phase-sequence circuit, the negative sequence impedance of the induction machine, the rotor-side converter negative phase-sequence
Doubly fed induction generator negative sequence impedance is calculated in anti-and described and grid-side converter negative sequence impedance；
Steady-state model generation unit, is used for：According to the doubly fed induction generator positive sequence impedance and the doubly fed induction generator negative phase-sequence
Doubly fed induction generator three-phase imbalance steady-state model is established in impedance.
7. doubly fed induction generator three-phase imbalance steady-state model construction device as claimed in claim 6, which is characterized in that described
Induction machine impedance generation unit, including：
Voltage and current relation generation module, is used for：According to the stator voltage space vector expression formula and the rotor voltage
Space vector expression formula is derived by stator voltage space vector based on d-q reference frame and stator current space vector
Relationship；
Induction machine positive sequence impedance generation module, is used for：By stator voltage space vector and stator based on d-q reference frame
The transformation of current space vector obtains the stator positive sequence voltage under abc reference frame, and root to abc reference frame
The positive sequence impedance of the induction machine is obtained according to the stator positive sequence voltage；
Induction machine negative sequence impedance generation module, is used for：Pass through the rotor velocity in the positive sequence impedance to the induction machine
Symbol negate, obtain the negative sequence impedance of the induction machine.
8. doubly fed induction generator three-phase imbalance steady-state model construction device as claimed in claim 6, which is characterized in that described
Rotor-side and simultaneously grid-side converter impedance generation unit, including：
Current transformer voltage vector expresses formula generation module, is used for：Current transformer voltage vector is generated according to current transformer current control figure
Expression formula；
Current transformer positive-negative sequence impedance generation module, is used for：Formula, which is expressed, according to the current transformer voltage vector obtains current transformer positive sequence
Impedance and current transformer negative sequence impedance；
Rotor-side and simultaneously grid-side converter impedance generation module, are used for：Rotor-side is obtained according to the current transformer positive sequence impedance to become
Device positive sequence impedance and simultaneously grid-side converter positive sequence impedance are flowed, rotor-side converter negative phase-sequence is obtained according to the current transformer negative sequence impedance
Impedance and and grid-side converter negative sequence impedance.
9. doubly fed induction generator three-phase imbalance steady-state model construction device as claimed in claim 6, which is characterized in that described
Steady-state model generation unit, including：
Doubly fed induction generator positive-negative sequence current generation module, is used for：Utilize doubly fed induction generator positive sequence voltage and the double-fed sense
It answers motor positive sequence impedance to calculate doubly fed induction generator forward-order current, utilizes doubly fed induction generator negative sequence voltage and the double-fed induction
Motor negative sequence impedance calculates doubly fed induction generator negative-sequence current；
Active and reactive power generation module, is used for：Utilize the doubly fed induction generator positive sequence voltage, the doubly fed induction generator
Negative sequence voltage, the doubly fed induction generator forward-order current and the doubly fed induction generator negative-sequence current indicate active power and idle
Power, doubly fed induction generator three-phase imbalance steady-state model include the doubly fed induction generator forward-order current, the double-fed induction
Motor negative-sequence current, the active power represented and the reactive power represented.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor
The step of claim 1 to 5 the method is realized when execution.
11. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the step of processor realizes claim 1 to 5 the method when executing described program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861170.7A CN108923464B (en) | 2018-08-01 | 2018-08-01 | Method and device for constructing and simulating three-phase imbalance steady-state model of doubly-fed induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861170.7A CN108923464B (en) | 2018-08-01 | 2018-08-01 | Method and device for constructing and simulating three-phase imbalance steady-state model of doubly-fed induction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108923464A true CN108923464A (en) | 2018-11-30 |
| CN108923464B CN108923464B (en) | 2020-08-14 |
Family
ID=64393631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810861170.7A Active CN108923464B (en) | 2018-08-01 | 2018-08-01 | Method and device for constructing and simulating three-phase imbalance steady-state model of doubly-fed induction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108923464B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266036A (en) * | 2019-05-21 | 2019-09-20 | 上海交通大学 | A kind of dimension reduction method of current transformer multidimensional frequency domain impedance |
| CN110263377A (en) * | 2019-05-21 | 2019-09-20 | 上海交通大学 | A kind of wind power plant single machine equivalence polymerization modeling method based on frequency domain mapping |
| CN110333394A (en) * | 2019-05-06 | 2019-10-15 | 国网四川综合能源服务有限公司 | A kind of low-voltage network line impedance estimation method |
| CN111709200A (en) * | 2020-06-15 | 2020-09-25 | 全球能源互联网研究院有限公司 | Equivalent model construction and switching control method and system for bidirectional switchable phase shifter |
| CN112994113A (en) * | 2021-04-29 | 2021-06-18 | 国网河南省电力公司电力科学研究院 | Doubly-fed wind generator sequence impedance modeling method and system |
| CN113285639A (en) * | 2021-03-26 | 2021-08-20 | 华北电力大学 | Method and system for determining fundamental frequency negative sequence impedance of doubly-fed induction generator system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145751A (en) * | 2007-09-07 | 2008-03-19 | 浙江大学 | Current non-delay control method of AC excitation double-fed asynchronous wind power generator rotor |
| CN101272119A (en) * | 2008-04-07 | 2008-09-24 | 国网南京自动化研究院 | Method for restraining imbalance and deformation of double-feedback type wind generator set stator current |
| US20140078800A1 (en) * | 2012-09-14 | 2014-03-20 | General Electric Company | Current balance control in converter for doubly fed induction generator wind turbine system |
| CN104485684A (en) * | 2014-11-18 | 2015-04-01 | 国家电网公司 | Fault current calculation method for electric power system comprising double-feed wind power generator set |
| CN107706895A (en) * | 2017-08-28 | 2018-02-16 | 国家电网公司 | Suitable for the current protection setting principle and computational methods of double-fed fan motor field collection electric wire |
-
2018
- 2018-08-01 CN CN201810861170.7A patent/CN108923464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101145751A (en) * | 2007-09-07 | 2008-03-19 | 浙江大学 | Current non-delay control method of AC excitation double-fed asynchronous wind power generator rotor |
| CN101272119A (en) * | 2008-04-07 | 2008-09-24 | 国网南京自动化研究院 | Method for restraining imbalance and deformation of double-feedback type wind generator set stator current |
| US20140078800A1 (en) * | 2012-09-14 | 2014-03-20 | General Electric Company | Current balance control in converter for doubly fed induction generator wind turbine system |
| CN104485684A (en) * | 2014-11-18 | 2015-04-01 | 国家电网公司 | Fault current calculation method for electric power system comprising double-feed wind power generator set |
| CN107706895A (en) * | 2017-08-28 | 2018-02-16 | 国家电网公司 | Suitable for the current protection setting principle and computational methods of double-fed fan motor field collection electric wire |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110333394A (en) * | 2019-05-06 | 2019-10-15 | 国网四川综合能源服务有限公司 | A kind of low-voltage network line impedance estimation method |
| CN110333394B (en) * | 2019-05-06 | 2021-07-30 | 国网四川综合能源服务有限公司 | Low-voltage distribution network line impedance estimation method |
| CN110266036A (en) * | 2019-05-21 | 2019-09-20 | 上海交通大学 | A kind of dimension reduction method of current transformer multidimensional frequency domain impedance |
| CN110263377A (en) * | 2019-05-21 | 2019-09-20 | 上海交通大学 | A kind of wind power plant single machine equivalence polymerization modeling method based on frequency domain mapping |
| CN110263377B (en) * | 2019-05-21 | 2020-11-13 | 上海交通大学 | Wind power plant single-machine equivalent aggregation modeling method based on frequency domain mapping |
| CN111709200A (en) * | 2020-06-15 | 2020-09-25 | 全球能源互联网研究院有限公司 | Equivalent model construction and switching control method and system for bidirectional switchable phase shifter |
| CN111709200B (en) * | 2020-06-15 | 2023-08-15 | 全球能源互联网研究院有限公司 | Equivalent model construction and switching control method and system of bidirectional switchable phase shifter |
| CN113285639A (en) * | 2021-03-26 | 2021-08-20 | 华北电力大学 | Method and system for determining fundamental frequency negative sequence impedance of doubly-fed induction generator system |
| CN113285639B (en) * | 2021-03-26 | 2022-07-12 | 华北电力大学 | Method and system for determining negative sequence impedance of base frequency of double-fed induction generator system |
| CN112994113A (en) * | 2021-04-29 | 2021-06-18 | 国网河南省电力公司电力科学研究院 | Doubly-fed wind generator sequence impedance modeling method and system |
| CN112994113B (en) * | 2021-04-29 | 2022-08-09 | 国网河南省电力公司电力科学研究院 | Doubly-fed wind generator sequence impedance modeling method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108923464B (en) | 2020-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108923464A (en) | The building of doubly fed induction generator three-phase imbalance steady-state model, emulation mode and device | |
| CN106356884B (en) | It is a kind of based on the grid-connected control method of virtual synchronous machine, apparatus and system | |
| EP2529462B1 (en) | Method for emulation of synchronous machine | |
| CN107451364B (en) | Method for identifying equivalent parameters of DFIG wind power plant | |
| CN111654062B (en) | Virtual synchronization control method and system of double-fed wind generating set | |
| CN109449999B (en) | Low pressure micro-capacitance sensor distributed control method and system based on adaptive virtual impedance | |
| CN102609575A (en) | Power system transient stability simulating method based on implicit numerical integration | |
| CN105488315B (en) | The grid-connected analysis method for generating sub-synchronous oscillation of wind-driven generator | |
| CN109921421B (en) | Method for establishing harmonic current output model of doubly-fed wind turbine generator | |
| CN104852652B (en) | Synchronous wind driven generator closed-loop vector control method and system | |
| CN109217371A (en) | Consider voltage converter grid-connected system method for analyzing stability, apparatus and system that phaselocked loop influences | |
| CN106533289B (en) | A kind of non-linear voltage control method and system | |
| CN106786673A (en) | The suppressing method and device of double-fed blower fan compensated transmission system subsynchronous resonance | |
| CN106786674A (en) | Double-fed blower fan compensated transmission system subsynchronous resonance suppressing method and device | |
| CN109217365A (en) | A kind of brushless dual-feed motor virtual synchronous control method | |
| CN110501614A (en) | Induction-motor load transient process calculation method suitable for electromagnetic transient simulation | |
| CN110417056A (en) | The device level oscillation source localization method and its device of double-fed blower grid-connected system | |
| CN108573094A (en) | The method for building up and system of the VBR electromagnetic transient simulation models of synchronous generator | |
| CN109617488B (en) | Modeling method of virtual synchronous machine considering excitation circuit | |
| CN108365629B (en) | Electric power system electromechanical transient simulation method based on direct algorithm | |
| CN106294959A (en) | The modeling and simulating method that model reference self-adapting control combines with double-fed blower fan reduced-order model | |
| CN113162107A (en) | Starting method for electromagnetic transient simulation of permanent magnet direct drive fan | |
| CN108258725A (en) | A kind of double-fed fan motor machine Dynamic Equivalence based on the equivalent generator rotor angle people having the same aspiration and interest | |
| CN101383579A (en) | Double feeding induction generator dual channel excitation control method based on dynamic synchronizing shaft system | |
| CN204229391U (en) | Hybrid simulation interface and there is the electric system hybrid real-time simulation equipment of this interface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181130 Address after: 100045 No. 1 Nanxiang, Tibetan Ancient Town, Fuxing Men, Xicheng District, Beijing Applicant after: Electric Power Sciences Research Institute of State Grid Jibei Electric Power Company Limited Applicant after: China Agricultural University Applicant after: State Grid Corporation of China Address before: 100045 No. 1 Nanxiang, Tibetan Ancient Town, Fuxing Men, Xicheng District, Beijing Applicant before: North China Electrical Power Research Institute LLC Applicant before: State Grid Corporation of China Applicant before: China Agricultural University |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |