CN106684923A - Damping enhanced control method for double-fed fan - Google Patents
Damping enhanced control method for double-fed fan Download PDFInfo
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- CN106684923A CN106684923A CN201710191547.8A CN201710191547A CN106684923A CN 106684923 A CN106684923 A CN 106684923A CN 201710191547 A CN201710191547 A CN 201710191547A CN 106684923 A CN106684923 A CN 106684923A
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- 238000013016 damping Methods 0.000 title claims abstract description 61
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Classifications
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- H02J3/386—
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/40—Synchronising a generator for connection to a network or to another generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Control Of Eletrric Generators (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention relates to a small-interference stable damping enhanced control method for a double-fed fan. A method for introducing an additional damping item related to a power grid frequency is adopted for increasing the damping of a double-fed fan system; a virtual power angle-rotating speed balancing point and a synchronous stability margin of the double-fed fan are not influenced by the additional damping item; the system damping weakening of the double-fed fan caused by the droop coefficient configured for meeting the synchronous stability margin can be avoided; the double-fed fan under the frequency droop control or virtual synchronous machine control has the expected synchronous stability margin and the expected damping characteristics; the dynamic performance and the stability of the power grid can be improved.
Description
Technical field
The present invention relates to a kind of system damping Enhancement Method for double-fed blower fan, more particularly to a kind of it is directed to double-fed wind
The improvement of damping type frequency droop control method of machine.
Background technology
As the permeability of wind-power electricity generation in electrical network is growing, the generating ratio shared by conventional synchronization electromotor is increasingly
Little, extensive, a high proportion of wind-electricity integration brings brand-new opportunity to the optimization of energy resource structure and the alleviation of environmental problem, be but
Also the operation and control for electrical network simultaneously proposes stern challenge, and such as tradition runs on the wind under maximum power tracing control
Group of motors cannot provide inertia and active power support etc. for electrical network.
Frequency droop is controlled with the control of virtual synchronous machine by the external characteristics of imitation conventional synchronization electromotor, can make wind-powered electricity generation
Unit provides inertia and active support for electrical network, so as to improve the frequency stability of system, ensures the safe and stable operation of electrical network.
Research show by the sagging coefficient of configuration frequency can improve frequency droop control double-fed blower fan synchronism stability domain, but while
Meeting Weakened System damping, causes dynamic performance to be deteriorated.
The content of the invention
In order to solve prior art medium frequency droop control or the lower double-fed wind power generator of virtual synchronous machine control due to matching somebody with somebody
The problem for causing system damping to die down when putting sagging coefficient to meet synchronism stability nargin, the present invention proposes a kind of for double-fed wind
The improvement of damping type frequency droop control method of machine, using the additional damping introduced in frequency droop control with regard to mains frequency
Method increase system equivalent damping, the additional damping item does not affect the virtual generator rotor angle-rotating speed equilibrium point of double-fed blower fan and same
Stability margin is walked, therefore can be used for compensation due to what the sagging coefficient of configuration caused to meet double-fed blower fan synchronism stability nargin and be
System damping dies down.
Technical scheme is adopted：
The present invention is for frequency droop control or the lower double-fed wind power generator of virtual synchronous machine control due to configuring sagging system
The problem for causing system damping to die down when number is to meet synchronism stability nargin, adopts and is introduced with regard to electrical network in frequency droop control
The method of the additional damping item of frequency increases system equivalent damping, as shown in figure 1, the frequency droop in inverter controls (inertia
Simulation coefficient J=0) or the middle additional damping introduced with regard to electrical network angular frequency of virtual synchronous machine control (inertia simulation coefficient J ≠ 0)
Item Dassist(ωsf-ωg), the introducing of the additional damping item does not affect virtual generator rotor angle-rotating speed equilibrium point and the synchronization of double-fed blower fan
Stability margin, therefore can compensate for due to configuring the system damping that sagging coefficient causes to meet double-fed blower fan synchronism stability nargin
Die down.
The magnetic linkage output angular frequency of the improvement of damping type frequency droop control double-fed blower fansfControl in the following manner
System：
Wherein, ωsfBe double-fed blower fan magnetic linkage output angular frequency, ω0It is angular frequency setting value, KPIt is sagging coefficient, Pref
It is active power reference value, PEIt is the active power of output of double-fed blower fan, DassistIt is Damping Coefficients, ωgIt is electrical network angular frequency
Rate.
In frequency droop control, inertia simulation item Jd ω are may be incorporated intosf/ dt, makes described improvement of damping type frequency
The magnetic linkage output angular frequency of droop control double-fed blower fansfControl in the following manner：
Wherein, J is inertia simulation coefficient, ωsfBe double-fed blower fan magnetic linkage output angular frequency, ω0It is angular frequency setting value,
KPIt is sagging coefficient, PrefIt is active power reference value, PEIt is the active power of output of double-fed blower fan, DassistIt is additional damping system
Number, ωgIt is electrical network angular frequency.
Further, the described virtual generator rotor angle of double-fed blower fan is by the magnetic to the improvement of damping type frequency droop controlled output
The difference of chain angular frequency and electrical network angular frequency is (ωsf-ωg) integration acquisition.
The invention has the beneficial effects as follows：
It is synchronous steady to meet due to configuring sagging coefficient that the present invention solves the lower double-fed wind power generator of frequency droop control
The problem for determining to cause system damping to die down during nargin, by configuring Damping Coefficients system equivalent damping is increased, and this is additional
Damping term does not affect the virtual generator rotor angle-rotating speed equilibrium point and synchronism stability nargin of double-fed blower fan, so as to can compensate for due under configuration
The system damping that vertical coefficient is caused with meeting double-fed blower fan synchronism stability nargin dies down.Control method of the present invention also apply be applicable to
The double-fed blower fan controlled using virtual synchronous machine, makes the double-fed blower fan of frequency droop control or the control of virtual synchronous machine with the phase
While the synchronism stability nargin of prestige, it may have desired damping characteristic, improve the dynamic characteristic and stability of electrical network.
Description of the drawings
Fig. 1 is schematic diagram of the present invention for the improvement of damping type frequency droop control method of double-fed blower fan；
Fig. 2 is the control structure figure that the double-fed blower fan of the present invention is incorporated to infinite bulk power grid；
Fig. 3 is rotating speed-electromagnetic power equilibrium point schematic diagram that the frequency droop of the present invention controls double-fed blower fan；
Fig. 4 is that new rotating speed-electromagnetic power of the frequency droop control double-fed blower fan of the present invention in mains frequency fluctuation is put down
Weighing apparatus point schematic diagram；
Fig. 5 is the synchronism stability border schematic diagram that the frequency droop of the present invention controls double-fed blower fan；
Fig. 6 is in frequency in embodiment simulating, verifying using the different double-fed blower fan of legacy frequencies droop control and sagging coefficient
Rotating speed and electromagnetic power response when rate is fallen；
Fig. 7 is in frequency in embodiment simulating, verifying using the different double-fed blower fan of legacy frequencies droop control and sagging coefficient
Stator magnetic linkage angular frequency response when rate is fallen；
Fig. 8 is using the control of improvement of damping type frequency droop and different double of Damping Coefficients in embodiment simulating, verifying
Stator magnetic linkage angular frequency response of the feedback blower fan when frequency is fallen；
Fig. 9 is using the control of improvement of damping type frequency droop and different double of Damping Coefficients in embodiment simulating, verifying
Rotor speed response of the feedback blower fan when frequency is fallen.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the present embodiment is carried out clearly and completely
Description, it is clear that described embodiment is only rather than the example of whole to a part of example of the invention.Based on the present invention
In embodiment, the every other enforcement that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Example, belongs to the scope of protection of the invention.
The rotor side inverter Jing of double-fed blower fan is controlled so as to realize frequently with frequency droop control or virtual synchronous machine
Realize that the power-sharing without communication and active power are supported in light current net or micro-capacitance sensor.In the voltage x current of rotor side inverter
In control, frequently with indirect flux linkage orientation control realization fan stator magnetic linkage and the orientation of set end voltage.Typical structure such as Fig. 2
It is shown, Partial Variable and physical significance it is as shown in table 1 below.The variable being related in below equation is equal during calculating if do not illustrated
Using perunit value.
The symbol definition of part system variable and explanation in the accompanying drawing of the present invention of table 1
Under the control of indirect flux linkage orientation, when system reaches stable state, stator magnetic linkage will be oriented to d axles, and set end voltage
Q axles will be oriented to, the virtual generator rotor angle that the angle between q axles and line voltage is double-fed blower fan will be defined, i.e.,Its dynamical equation can be written as：
D δ '/dt=(ωsf-ωg)×ω0 (1)
Shown in the governing equation such as formula (2) of virtual synchronous machine control, wherein, J is the inertia for simulating synchronous generator inertia
Coefficient, as J=0, formula (2) deteriorates to frequency droop governing equation.The reference value of active power is from blower fan in formula (2)
Maximal power tracing characteristic or off-load characteristic, as shown in formula (3), fDL(ωr) represent the maximal power tracing characteristic of blower fan or subtract
Carry characterisitic function, KDLIt is maximal power tracing coefficient or off-load coefficient.Shown in the output expression formula such as formula (4) of blower fan.
Shown in single equation of particle motion such as formula (5) of fan rotor, wherein, Ta>0 be blower fan equivalent inertia time it is normal
Number, D is the damped coefficient of blower fan, PMIt is the mechanical output of fan blade capture, in the case where wind speed υ is fixed, is represented by
With regard to rotor speed ωrFunction fM(ωr), as shown in formula (6).
Wherein, fM(ωr) be the fan blade capture when wind speed and propeller pitch angle are fixed mechanical output PMWith rotor speed
ωrFunction, K1It is Wind energy extraction coefficient, relevant, the C such as it is with atmospheric density, wind wheel radiuspFor power coefficient, it is blade tip speed
Than (λ=K2ω/υ) and pitch angle beta nonlinear function, it can be seen that fix (β=0) in wind speed υ (m/s) and propeller pitch angle
In the case of, PMOnly and rotor speed ωrCorrelation, and the form of formula (7) can be expressed as.
Wherein, C1,C2,C3,C4It is that power coefficient calculates related parameter.
The above-mentioned formula of simultaneous (1)-(6) can obtain the virtual generator rotor angle of the blower fan-rotating speed characteristic equation with regard to mains frequency：
By formula (8) can solve with regard to mains frequency rotation speed of fan equilibrium point be below equation：
ωre=max (ωr1,ωr2) (9)
Wherein, ωreIt is the rotating speed equilibrium point of blower fan, ωr1And ωr2It is ω when below equation is set uprTwo different solutions：
Fig. 3 gives the rotation speed of fan and electromagnetic power equilibrium point tried to achieve by formula (8), wherein, bold portion is equation
KP(fDL(ωr)-PE)+ω0-ωg=0 solution, dotted portion isSolution, both intersection points are
The equilibrium point of formula (8), the corresponding rotating speed in equilibrium point place is formula (9) and is solved.
When can be seen that when mains frequency fluctuation from formula (10), the rotor speed of blower fan can reach different equilibrium points,
The rotating part of blower fan can discharge or absorb kinetic energy so as to be reached for the mesh that electrical network provides active power support in transient process
, i.e.,：
Wherein, ωre(new)The rotating speed equilibrium point for reaching, ω are expected when being frequency fluctuation in transient processre(0)It is specified electricity
The rotating speed equilibrium point of blower fan, E under net frequencyassistIt is that the fan rotor kinetic energy for meeting the active enabling capabilities requirement of transient state discharges total
Close (EassistCan be taken as bearing), Ta>0 is the equivalent inertia time constant of blower fan.
Fig. 4 gives the new equilibrium point schematic diagram that blower fan double-fed blower fan in mains frequency fluctuation is reached.Wherein, due to
ω during mains frequency drop (rising)0-ωg≠ 0, therefore equation KP(fDL(ωr)-PE)+ω0-ωg=0 solution is compared to specified
(downward) skew upwards during mains frequency, so as to cause transient process apoplexy chance to reach new Frequency point, as shown in figure 3,
During this, the kinetic energy of blower fan release (absorption) rotating part is supported so as to provide active power for electrical network.
Equation KP(fDL(ωr)-PE)+ω0-ωgDegrees of offset of=0 solution in frequency fluctuation not only with mains frequency
Degree of fluctuation it is relevant, also with frequency droop control sagging COEFFICIENT KPIt is relevant.Figure 4, it is seen that working as KP(fDL(ωr)-
PE)+ω0-ωgWhen=0 solution degrees of offset is too big, may be withSolution there is no intersection point, so as to lead
Cause double-fed blower fan that synchronous unstability occurs, its rotating speed will constantly decline and cause blower fan to cut off from electrical network.After blower fan excision
Frequency cannot be provided for electrical network to support, therefore the synchronous unstability of blower fan will deteriorate the frequency stability of electrical network.Fig. 5 is given by not
With the synchronism stability side of the lower double-fed blower fan of frequency droop control or the control of virtual synchronous machine of the Critical operating point composition under wind speed
Boundary, it can be seen that K during frequency fluctuationP(fDL(ωr)-PE)+ω0-ωg=0 solution degrees of offset is less, its synchronism stability nargin
It is bigger.
Due to increasing KPK can be reducedP(fDL(ωr)-PE)+ω0-ωgDegrees of offset of=0 solution in frequency fluctuation,
Therefore the stability of synchronization of double-fed blower fan system can be improved, but due to (1/KP) it is equivalent to the synchronous generator equation of motion
Damping term, therefore increase KPThe equivalent damping of reduction system is equivalent to, so as to deteriorate the dynamic response characteristic of system.
And the improvement of damping type control method for double-fed blower fan proposed by the present invention is utilized, as shown in figure 1, its controlling party
Journey can be expressed as：
Wherein, J be inertia simulation coefficient, DassistFor Damping Coefficients, Dassist(ωsf-ωg) it is with regard to mains frequency
Additional damping item, as J=0, deteriorate to frequency droop control method.Due to having ω under stable statesf=ωg, therefore this is additional
Damping term does not affect the virtual generator rotor angle-rotating speed equilibrium point and synchronism stability nargin of double-fed blower fan, so as to can compensate for due under configuration
The system damping that vertical coefficient is caused with meeting double-fed blower fan synchronism stability nargin dies down.
So that double-fed blower fan is incorporated to Infinite bus system as an example, as shown in Fig. 2 to emulate electromagnetic transient simulation (MATLAB/
Simulink the effectiveness of the inventive method) is verified, the contravarianter voltage electric current of fan rotor side is adopted in electromagnetic transient simulation
The control of indirect flux linkage orientation containing current inner loop, using frequency droop control, set end voltage control is using electricity for stator magnetic linkage frequency
Pressure droop control, the powerinjected method of blower fan adopts Control of decreasing load, and the parameter value of system major variable is such as in embodiment simulating, verifying
Shown in table 2 below.It is assumed that wind speed is υ=10m/s, emulate from the t=0s moment, and fall in t=2s moment electrical network occurrence frequencies
Fall.
The parameter value of system major variable in the embodiment simulating, verifying of table 2
If mains frequency falls amplitude for Δ f=-0.3Hz and double-fed blower fan adopts legacy frequencies droop control, Fig. 6 to provide
The rotating speed and electromagnetic power response of double-fed blower fan, it can be seen that when frequency droop COEFFICIENT KPWhen=0.02, blower fan occurs synchronous
Unstability, its rotating speed constantly declines and cannot reach stable equilibrium point.And work as KPWhen=0.04, blower fan can reach stable balance
Point (synchronism stability).As can be seen that increase frequency droop COEFFICIENT KPThe synchronism stability nargin of double-fed blower fan can be improved, it is to avoid its
There is synchronous unstability in mains frequency fluctuation.
But meanwhile, increase frequency droop COEFFICIENT KPThe damping of meeting Weakened System, the dynamic response characteristic for making system is deteriorated.Figure
7 give mains frequency fall amplitude for Δ f=-0.2Hz when, the sagging COEFFICIENT K of different frequencyPThe stator magnetic linkage of lower double-fed blower fan
Angular frequency response characteristic.As can be seen that with KPIncrease, the damping of system dies down, and dynamic response characteristic is substantially deteriorated.
If electrical network falls and in t=10s frequency retrievals and double-fed blower fan is adopted in the frequency that t=2s occurs Δ f=-0.2Hz
With improvement of damping type frequency droop control method proposed by the invention, Fig. 8 and Fig. 9 sets forth different Damping Coefficients
Under, the stator magnetic linkage angular frequency and rotating speed response characteristic of double-fed blower fan.As can be seen that with the increase of Damping Coefficients, being
The improvement of damping of system, dynamic characteristic substantially improves, and the rotating speed response characteristic of double-fed blower fan as seen from Figure 9 is constant, therefore, add
The introducing of damping term does not interfere with the transient equilibrium point and its synchronism stability nargin of double-fed blower fan, can be used for compensation due under configuration
The system damping that vertical coefficient is caused with meeting double-fed blower fan synchronism stability nargin dies down.
The present invention is limited, and in the protection domain of spirit and claims of the present invention, what the present invention was made appoints
What modifications and changes, both falls within protection scope of the present invention.
Claims (3)
1. a kind of improvement of damping type control method for double-fed blower fan, it is characterised in that：Introduce in the control of virtual synchronous machine
The additional damping item D of mains frequencyassist(ωsf-ωg), and make the configuration of Damping Coefficients not affect the virtual of double-fed blower fan
Generator rotor angle-rotating speed equilibrium point and synchronism stability nargin, the stator magnetic linkage output angular frequency of the double-fed blower fansfIn the following manner
Control：
Wherein, J is inertia simulation coefficient, ωsfBe double-fed blower fan stator magnetic linkage output angular frequency, ω0It is angular frequency setting value,
KPIt is sagging coefficient, PrefIt is active power reference value, PEIt is the active power of output of double-fed blower fan, DassistIt is additional damping system
Number, ωgIt is electrical network angular frequency.
2. a kind of improvement of damping type frequency droop control method for double-fed blower fan according to claim 1, the void
It is frequency droop control to intend synchrodrive control, the stator magnetic linkage output angular frequency of the double-fed blower fansfControl in the following manner
System：
3. according to a kind of improvement of damping type control method for double-fed blower fan, it is characterised in that：By to the improvement of damping type
The stator magnetic linkage angular frequency of frequency droop controlled output and the difference of electrical network angular frequency are (ωsf-ωg) the virtual generator rotor angle of integration acquisition
δ′。
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110799A (en) * | 2018-01-30 | 2018-06-01 | 国家电网公司 | The grid-connected virtual synchronous control method and device of isolated island double-fed fan motor field high voltage direct current |
| CN108923454A (en) * | 2018-06-29 | 2018-11-30 | 中国电力科学研究院有限公司 | A kind of control method and device of the load virtual synchronous machine that DC voltage is sagging |
| CN109687482A (en) * | 2019-02-01 | 2019-04-26 | 东南大学 | Towards the active oscillation damping control method of more virtual synchronous machine micro-capacitance sensors |
| CN112271738A (en) * | 2020-11-06 | 2021-01-26 | 山东中实易通集团有限公司 | Double-fed fan dynamic short-term frequency stabilizing method and system considering power margin and fan |
| EP4024695A1 (en) * | 2020-12-31 | 2022-07-06 | General Electric Company | Method for operating doubly-fed wind turbine generator as a virtual synchronous machine to provide grid-forming control thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684209B (en) * | 2012-06-18 | 2014-09-10 | 中国电力科学研究院 | Method for improving sub-synchronous oscillation (SSO) damping of thermal power plant by utilizing fan supplementary controller |
| CN104158209A (en) * | 2014-07-17 | 2014-11-19 | 浙江大学 | Droopy voltage source-type control method for double feed blower adaptive to microgrid multimode operation |
| CN104578173A (en) * | 2015-01-26 | 2015-04-29 | 西安交通大学 | Inverter grid-connected control method based on virtual synchronous generator technology |
| CN104779642A (en) * | 2015-04-17 | 2015-07-15 | 华北电力大学（保定） | Integrated frequency and damping control method for double-fed wind power generation unit |
| CN103683324B (en) * | 2013-12-04 | 2016-08-24 | 浙江大学 | A kind of micro power network system is used for the droop control method of the improvement based on communication network of distributed power source parallel running mode |
| US9450416B2 (en) * | 2013-07-16 | 2016-09-20 | Siemens Aktiengesellschaft | Wind turbine generator controller responsive to grid frequency change |
| CN106130424A (en) * | 2016-06-24 | 2016-11-16 | 西安交通大学 | Virtual synchronous Generator Damping coefficient self-adaptation control method based on unified damping ratio |
| CN106208158A (en) * | 2016-07-22 | 2016-12-07 | 华北电力大学（保定） | The Inertia Matching method of the most micro-source paired running in microgrid |
-
2017
- 2017-03-27 CN CN201710191547.8A patent/CN106684923B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684209B (en) * | 2012-06-18 | 2014-09-10 | 中国电力科学研究院 | Method for improving sub-synchronous oscillation (SSO) damping of thermal power plant by utilizing fan supplementary controller |
| US9450416B2 (en) * | 2013-07-16 | 2016-09-20 | Siemens Aktiengesellschaft | Wind turbine generator controller responsive to grid frequency change |
| CN103683324B (en) * | 2013-12-04 | 2016-08-24 | 浙江大学 | A kind of micro power network system is used for the droop control method of the improvement based on communication network of distributed power source parallel running mode |
| CN104158209A (en) * | 2014-07-17 | 2014-11-19 | 浙江大学 | Droopy voltage source-type control method for double feed blower adaptive to microgrid multimode operation |
| CN104578173A (en) * | 2015-01-26 | 2015-04-29 | 西安交通大学 | Inverter grid-connected control method based on virtual synchronous generator technology |
| CN104779642A (en) * | 2015-04-17 | 2015-07-15 | 华北电力大学（保定） | Integrated frequency and damping control method for double-fed wind power generation unit |
| CN106130424A (en) * | 2016-06-24 | 2016-11-16 | 西安交通大学 | Virtual synchronous Generator Damping coefficient self-adaptation control method based on unified damping ratio |
| CN106208158A (en) * | 2016-07-22 | 2016-12-07 | 华北电力大学（保定） | The Inertia Matching method of the most micro-source paired running in microgrid |
Non-Patent Citations (1)
| Title |
|---|
| 潘文霞等: "基于双馈风电机组的变下垂系数控制策略", 《电力系统自动化》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110799A (en) * | 2018-01-30 | 2018-06-01 | 国家电网公司 | The grid-connected virtual synchronous control method and device of isolated island double-fed fan motor field high voltage direct current |
| CN108110799B (en) * | 2018-01-30 | 2020-06-30 | 国家电网公司 | Virtual synchronous control method and device for high-voltage direct current grid connection of island double-fed wind power plant |
| CN108923454A (en) * | 2018-06-29 | 2018-11-30 | 中国电力科学研究院有限公司 | A kind of control method and device of the load virtual synchronous machine that DC voltage is sagging |
| CN108923454B (en) * | 2018-06-29 | 2022-09-02 | 中国电力科学研究院有限公司 | Control method and device for load virtual synchronous machine with voltage droop on direct current side |
| CN109687482A (en) * | 2019-02-01 | 2019-04-26 | 东南大学 | Towards the active oscillation damping control method of more virtual synchronous machine micro-capacitance sensors |
| CN109687482B (en) * | 2019-02-01 | 2021-07-20 | 东南大学溧阳研究院 | Active oscillation damping control method for micro-grid of multiple virtual synchronous machines |
| CN112271738A (en) * | 2020-11-06 | 2021-01-26 | 山东中实易通集团有限公司 | Double-fed fan dynamic short-term frequency stabilizing method and system considering power margin and fan |
| EP4024695A1 (en) * | 2020-12-31 | 2022-07-06 | General Electric Company | Method for operating doubly-fed wind turbine generator as a virtual synchronous machine to provide grid-forming control thereof |
| US11486355B2 (en) | 2020-12-31 | 2022-11-01 | General Electric Company | Method for operating doubly-fed wind turbine generator as a virtual synchronous machine to provide grid-forming control thereof |
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| CN106684923B (en) | 2018-02-27 |
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