CN107658904A - Consider the impedance self-adaptive power decoupled control method that virtual synchronous machine generator rotor angle influences - Google Patents
Consider the impedance self-adaptive power decoupled control method that virtual synchronous machine generator rotor angle influences Download PDFInfo
- Publication number
- CN107658904A CN107658904A CN201711040473.4A CN201711040473A CN107658904A CN 107658904 A CN107658904 A CN 107658904A CN 201711040473 A CN201711040473 A CN 201711040473A CN 107658904 A CN107658904 A CN 107658904A
- Authority
- CN
- China
- Prior art keywords
- msub
- virtual
- mrow
- generator rotor
- rotor angle
- 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
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000006698 induction Effects 0.000 claims abstract description 12
- 238000004146 energy storage Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000011800 void material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 8
- 238000010168 coupling process Methods 0.000 description 8
- 238000005859 coupling reaction Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000013456 study Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- H02J3/382—
-
- 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]
Landscapes
- Control Of Eletrric Generators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to distributed power generation field, it is desirable to provide a kind of impedance self-adaptive power decoupled control method for considering virtual synchronous machine generator rotor angle and influenceing.Including：The undulate quantity Δ δ of generator rotor angle is estimated using the active power of output of virtual synchronous machine, then calculates the virtual resistance value R of virtual impedancevWith virtual induction reactance value Xv；Then by virtual impedance value RvAnd LvContravarianter voltage control ring is added to, with obtained voltage set-point EO *As the Setting signal of inner ring voltage control loop, finally using the output signal of inner ring control as the control signal of inverter, and wherein inner ring is the double-closed-loop control of voltage and current.The present invention considers to cause the power coupled problem caused by the increase of generator rotor angle, independently changes virtual impedance value size when exporting generator rotor angle fluctuation, realize the power decoupled of virtual synchronous machine.I.e. influence of the active power loop for Reactive Power Control loop of generator rotor angle can be released, there is stable, accurate, excellent control effect.
Description
Technical field
The present invention relates to the impedance self-adaptive power decoupled control method for considering the influence of virtual synchronous machine generator rotor angle, belongs to electrician
Journey, distributed power generation field.
Background technology
After New Century, global energy is in short supply and environmental problem is more serious, under this background, photovoltaic, wind energy etc.
Regenerative resource obtains extensive research and development.However, with the rising increasingly of distributed energy permeability, in power system
The installation ratio relative drop of synchronous generator, more seriously a large amount of electronic power convertors use so that system lacks
Enough inertia and damping, the stability of power system are challenged, and thus, virtual synchronous machine technology is arisen at the historic moment.
Among the control of distributed power source, to the characteristic sagging control of synchronous generator P-f and Q-U in simulating grid
System strategy is most commonly seen, but droop control strategy does not account for inertia feature possessed by generator amature, transient response speed
It is too fast, it is impossible to maintain the stabilization of power grids to provide enough guarantees.The core of virtual synchronous machine is by simulating synchronous electric motor rotor
Equation provides inertia and Damper Braces for system, and is aided with idle-voltage control, so that distributed power source has well
Frequency and voltage support and adjustment effect.So from the perspective of distributed power source complimentary nature, with virtual synchronous in microgrid
Machine control substitutes droop control and has more advantage, and numerous experts and scholars are also made that many correlative studys.But either virtual synchronous
Machine control technology or droop control technology can all run into power coupled problem, can assume that current transformer is defeated generally during analysis
The equiva lent impedance for going out voltage to the transmission line of electricity between grid entry point voltage is pure perception or purely resistive.But among reality, it is micro-
Netting twine road is resistance sense, and resistive composition all be can not ignore with sensitive ingredients, so as to cause the coupling of active power and reactive power
Close, have impact on control performance.
To realize the independent control of distributed power source active power and reactive power, existing control mode, which has, passes through introducing
The transformation matrix related to line impedance, virtual power control strategy is realized, its essence is the elimination of control loop power coupling,
And actual active power and reactive power still has coupling.It is inspired and is controlled in virtual power, transformation matrix can be relied on
Virtual frequency is introduced with virtual voltage to realize power decoupled.Another main stream approach of power decoupled control is virtual impedance
Technology, change the resistance sense ratio of system impedance by modes such as virtual inductor, virtual resistance, virtual negative impedances, reach decoupling
Purpose.
But it mostly have ignored generator rotor angle (i.e. distributed power source output voltage and grid entry point voltage comprising the research including above-mentioned
Between angle) on power couple caused by influence, rarely have the influence that documents generator rotor angle couples for power.Virtual synchronous machine
Possess frequency self-adjusting ability, power increase is given in inverter, or when under the power network frequency of occurrences of virtual synchronous machine access
Drop, virtual synchronous machine output frequency will respond with the relevant time constant with hypothetical rotor inertia, generator rotor angle also therewith by
Widen, and then generator rotor angle can be caused to increase, coupling influence is produced to reactive power, and with the increasing of generator rotor angle, power coupling condition
It is more serious.
The content of the invention
Generator rotor angle can cause active power to produce reactive power during it is an object of the invention to overcome virtual synchronous machine grid-connected
The defects of coupling influence, propose a kind of impedance self-adaptive power decoupled control method for considering virtual synchronous machine generator rotor angle and influenceing.
To solve the above problems, the concrete technical scheme of the present invention is：
A kind of impedance self-adaptive power decoupled control method for considering virtual synchronous machine generator rotor angle and influenceing is provided, in distributed electrical
In the three-phase inverting circuit in source, DC side is made up of clean energy resource or energy storage device shunt capacitance, and AC is followed by wave filter, and
Power network is accessed by circuit；The angle defined between inverter output voltage E and line voltage U is generator rotor angle δ, by adjusting in real time
Virtual impedance value complement repays influence of the generator rotor angle to Reactive Power Control loop, realizes power decoupled；Wherein virtual impedance includes virtual
Resistance RvWith virtual inductor Lv, virtual inductor LvCorresponding virtual induction reactance XvRepresent；
The control method specifically includes following steps：
(1) the active power of output P of virtual synchronous machine is utilizedeEstimate the undulate quantity Δ δ of generator rotor angle：
In the formula, P0、δ0For virtual synchronous machine steady operation point output power and generator rotor angle；KcorFor proportionality coefficient, according to steady
State work point output power and the ratio of generator rotor angle are determined；
(2) the virtual resistance value R of virtual impedance is calculated using generator rotor angle undulate quantity Δ δ obtained by step (1)vWith virtual induction reactance value
Xv
In formula, X0、R0Respectively steady operation point total system induction reactance and resistance value；
KConstIt is the constant value related to steady operation point, by the steady-state component θ of the impedance angle θ by virtual synchronous machine0And
Generator rotor angle δ steady-state component δ0Determine：
(3) by virtual impedance value RvAnd LvContravarianter voltage control ring is added to, i.e., is subtracted with reference potential on virtual impedance
The reference value that is controlled as inner ring Voltage loop of pressure drop, it is as follows in the expression of complex plane：
EO *(s)=Er(s)-(RV+sLV)·I(s)
In formula, EO *For the set-point of inner ring Voltage loop control；ErThat is reference potential, obtained by upper-level virtual synchronous machine control ring
Arrive；I is grid-connected current；S represents complex frequency；
(4) by the voltage set-point E obtained by previous stepO *As the Setting signal of inner ring voltage control loop, last inner ring
Control signal of the output signal of control as inverter, and wherein inner ring is the double-closed-loop control of voltage and current.
Inventive principle describes：
In the three-phase inverting circuit of distributed power source, DC side is made up of clean energy resource or energy storage device shunt capacitance,
AC is followed by wave filter and accesses power network by circuit, and the angle defined between inverter output voltage and line voltage is work(
Angle, influence of the generator rotor angle to Reactive Power Control loop is repaid by adjusting virtual impedance value complement in real time, realizes power decoupled.
Total system impedance Z includes virtual impedance and line impedance two parts, impedance angle θ；Wherein virtual impedance is void
Intend resistance RvWith virtual inductor Lv, virtual inductor LvCorresponding virtual induction reactance XvRepresent；Line impedance is line resistance RgAnd line
Road inductance Lg.The core concept for considering the impedance self-adaptive uneoupled control that virtual synchronous machine generator rotor angle influences is with total system impedance
Angle θ is indirect variable, and can be to influence new caused by reactive power change, with R in view of θ changevAnd LvFor Direct Variable
θ, and then the undulate quantity for the size real-Time Compensation generator rotor angle for passing through Reasonable adjustment θ are adjusted, releases influence of the generator rotor angle to reactive power.With
This simultaneously, design regulation θ while, it is desirable to impedance Z as far as possible keep constant, can not only so reduce the introducing of parameter, and
And avoid voltage drop problem caused by virtual impedance.
What deserves to be explained is inner ring control generally comprises voltage control loop and current regulator, virtual synchronous machine generator rotor angle is considered
The impedance self-adaptive uneoupled control of influence is only the intermediate link of the control of virtual synchronous machine and voltage control loop.
The present invention is based on virtual synchronous machine control strategy, and take into account mains frequency decline, and inverter gives work(
Rate increase can all cause the increase of generator rotor angle, and then cause the problem of active power is to reactive power generation coupling influence.This method
It is adapted in the three-phase inverting circuit of distributed power source, DC side is made up of clean energy resource or energy storage device shunt capacitance, exchange
Side is followed by wave filter, and the occasion of power network is accessed by circuit.
Compared with existing control technology, the beneficial effects of the invention are as follows：
1st, the impedance self-adaptive decoupling control method proposed by the present invention for considering virtual synchronous machine generator rotor angle and influenceing, it is contemplated that
Virtual synchronous machine exports generator rotor angle and declined in mains frequency, and inverter gives the increase of power can all cause the increase institute of generator rotor angle
Caused by power coupled problem, export generator rotor angle fluctuation when independently change virtual impedance value size, realize the work(of virtual synchronous machine
Rate decouples.
2nd, the present invention can release i.e. influence of the active power loop for Reactive Power Control loop of generator rotor angle, have it is stable,
Accurately, excellent control effect.
Brief description of the drawings
Fig. 1 is virtual synchronous machine grid-connected system main circuit diagram；
Fig. 2 is virtual synchronous machine control strategy block diagram；
Fig. 3 is the variation relation of generator rotor angle and impedance angle in the present invention；
Fig. 4 is the entire block diagram of the method for the invention.
Embodiment
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
The grid-connected system main circuit diagram of virtual synchronous machine shown in Fig. 1, DC side is by clean energy resource or energy storage device shunt capacitance
Form, inverter ac side is followed by LC wave filters, and accesses power network by circuit.DC voltage V in figuredcIt is regarded as virtual synchronous
The prime mover portion of machine；ek(k=a, b, c), ukRespectively inverter output voltage and line voltage；isk、ikRespectively inverter
Output current and grid-connected current；L、RLAnd C is respectively inductance, inductance parasitic resistance and the electric capacity of inverter LC wave filters；LgAnd Rg
Then represent the equivalent inductance and resistance of transmission line of electricity between inverter output voltage and grid entry point voltage；isdq、edqRepresent inverter
Output current, inverter output voltage are converted into the amount of dq rotating coordinate systems；isdref、isqrefRepresent that Voltage loop rotates in dq to sit
The instruction output of mark system；uod、uoqRepresent that electric current loop exports in the instruction of dq rotating coordinate systems.
Fig. 2 virtual synchronous machine grid-connected system most outer shroud is virtual synchronous machine control strategy, according to power set-point and void
Intend synchronous machine real output and obtain reference potential and hypothetical rotor angle, used virtual synchronous machine control formula is as follows：
Er=E0+KQ(Qref-Qe) (2)
In formula, J and D are respectively rotary inertia and damped coefficient；ω、ω0It is then electric in virtual synchronous machine respectively with Δ ω
Gesture speed, rated frequency and the deviation of the two；PrefIt is the reference value of active power；PmAnd PeIt is virtual synchronous machine respectively
Mechanical output and electromagnetic power (real output)；TmAnd TeFor corresponding machine torque and electromagnetic torque；KωTo have
The adjustment factor of work(- FREQUENCY CONTROL；For hypothetical rotor angle；E0、ErBy kinetic potential in the zero load of virtual synchronous machine and calculate
Interior kinetic potential set-point；Qref、QeRespectively reactive power reference qref and actual value；KQFor the sagging adjustment factor of reactive power.
The virtual synchronous machine inner ring for being not added with uneoupled control is generally used such as the Voltage loop in Fig. 1 and electric current loop two close cycles control
System, reference potential ErWith hypothetical rotor angleDirectly as the input signal of inner ring, Voltage loop, electric current loop control virtual same respectively
Step machine output voltage and inductive current.
Angle is generator rotor angle δ between defining inverter output voltage E and line voltage U；Total system impedance Z includes virtual impedance
With line impedance two parts, impedance angle θ, wherein virtual impedance are virtual resistance RvWith virtual inductor Lv, LvCorresponding virtual induction reactance
Xv；Line impedance is line resistance RgWith line inductance Lg。
Fig. 3, which is shown, considers impedance self-adaptive decoupling control method generator rotor angle that virtual synchronous machine generator rotor angle influences and impedance angle
Variation relation, what is illustrated is the core concept of uneoupled control, i.e., using impedance angle θ as indirect parameter, and with RvAnd LvTo be direct
Variable adjusts θ, and then the undulate quantity for the size real-Time Compensation generator rotor angle for passing through Reasonable adjustment θ.But θ change is undoubtedly again to idle work(
Rate change produces new influence, so the selection of θ values also needs to consider the influence of this part.At the same time, design regulation θ's is same
When, it is desirable to impedance Z keeps constant as far as possible, can not only so reduce the introducing of parameter, and avoid virtual impedance institute band
The voltage drop problem come.
(1) when virtual synchronous machine is grid-connected, mains frequency declines, and the given power increase of inverter can all cause generator rotor angle
The problem of increasing, and then coupling influence being produced to reactive power.Consider the impedance self-adaptive work(that virtual synchronous machine generator rotor angle influences
Rate decoupling control method needs to detect the undulate quantity Δ δ of generator rotor angle, and it utilizes active power of output PeAnd estimated according to following formula：
In the formula, P0、δ0For virtual synchronous machine steady operation point output power and generator rotor angle；KcorFor the estimation of generator rotor angle undulate quantity
Proportionality coefficient, it is determined according to the ratio of steady operation point output power and generator rotor angle；
(2) using following formula be calculated the virtual resistance value of virtual impedance to resulting generator rotor angle undulate quantity Δ δ
RvWith virtual induction reactance value Xv(virtual inductor corresponding to virtual induction reactance is with LvRepresent)：
In formula, X0、R0For steady operation point total system induction reactance and resistance value；KConstIt is one related to steady operation point
Constant value, by the impedance angle θ of virtual synchronous machine steady-state component θ0And generator rotor angle δ steady-state component δ0Determine：
(3) the virtual impedance value R that will be calculatedvAnd LvContravarianter voltage control ring is added to, i.e., is subtracted with reference potential
The reference value that pressure drop on virtual impedance controls as inner ring Voltage loop is as follows in the expression of complex plane
EO *(s)=Er(s)-(RV+sLV)·I(s) (6)
In formula, EO *For the set-point of inner ring Voltage loop control；ErThat is reference potential, controlled by upper-level virtual synchronous machine
Arrive；I is grid-connected current；S represents complex frequency；
(4) by the voltage set-point E obtained by previous stepO *Setting signal as inner ring voltage control loop；Within last
Control signal of the output signal of ring control as inverter, and wherein inner ring is generally the double-closed-loop control of voltage and current.
This and previously described virtual synchronous machine reference potential ErThere is certain difference directly as inner ring Setting signal, consider virtual synchronous machine
The impedance self-adaptive uneoupled control that generator rotor angle influences is the equal of the link of centre one of the control of virtual synchronous machine and voltage control loop, such as
Fig. 4 show the schematic diagram for considering the impedance self-adaptive uneoupled control that virtual synchronous machine generator rotor angle influences, E in figureO * d、EO * qFor EO *
D, q axis component under rotating coordinate system.
Claims (1)
1. consider the impedance self-adaptive power decoupled control method that virtual synchronous machine generator rotor angle influences, it is characterised in that in distribution
In the three-phase inverting circuit of power supply, DC side is made up of clean energy resource or energy storage device shunt capacitance, and AC is followed by wave filter,
And power network is accessed by circuit；The angle defined between inverter output voltage E and line voltage U is generator rotor angle δ, by adjusting in real time
Section virtual impedance value complement repays influence of the generator rotor angle to Reactive Power Control loop, realizes power decoupled；Wherein virtual impedance includes void
Intend resistance RvWith virtual inductor Lv, virtual inductor LvCorresponding virtual induction reactance XvRepresent；
The control method specifically includes following steps：
(1) active power of output P is utilizedeEstimate the undulate quantity Δ δ of generator rotor angle：
<mrow>
<mi>&Delta;</mi>
<mi>&delta;</mi>
<mo>=</mo>
<msub>
<mi>K</mi>
<mrow>
<mi>c</mi>
<mi>o</mi>
<mi>r</mi>
</mrow>
</msub>
<mrow>
<mo>(</mo>
<mfrac>
<msub>
<mi>P</mi>
<mi>e</mi>
</msub>
<msub>
<mi>P</mi>
<mn>0</mn>
</msub>
</mfrac>
<mo>-</mo>
<mn>1</mn>
<mo>)</mo>
</mrow>
<mo>&CenterDot;</mo>
<msub>
<mi>&delta;</mi>
<mn>0</mn>
</msub>
</mrow>
In the formula, P0、δ0For virtual synchronous machine steady operation point output power and generator rotor angle；KcorFor the ratio of generator rotor angle undulate quantity estimation
Coefficient, it is determined according to the ratio of steady operation point output power and generator rotor angle；
(2) the virtual resistance value R of virtual impedance is calculated using generator rotor angle undulate quantity Δ δ obtained by step (1)vWith virtual induction reactance value Xv：
<mfenced open = "{" close = "">
<mtable>
<mtr>
<mtd>
<msub>
<mi>R</mi>
<mi>v</mi>
</msub>
<mo>=</mo>
<mo>-</mo>
<msub>
<mi>X</mi>
<mn>0</mn>
</msub>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<msub>
<mi>K</mi>
<mrow>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>)</mo>
<mo>&CenterDot;</mo>
<mi>&Delta;</mi>
<mi>&delta;</mi>
</mtd>
</mtr>
<mtr>
<mtd>
<msub>
<mi>X</mi>
<mi>v</mi>
</msub>
<mo>=</mo>
<msub>
<mi>R</mi>
<mn>0</mn>
</msub>
<mo>(</mo>
<mn>1</mn>
<mo>+</mo>
<msub>
<mi>K</mi>
<mrow>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>)</mo>
<mo>&CenterDot;</mo>
<mi>&Delta;</mi>
<mi>&delta;</mi>
</mtd>
</mtr>
</mtable>
</mfenced>
In formula, X0、R0Respectively steady operation point total system induction reactance and resistance value；
KConstIt is the constant value related to steady operation point, by the impedance angle θ of virtual synchronous machine steady-state component θ0And generator rotor angle δ
Steady-state component δ0Determine：
<mrow>
<msub>
<mi>K</mi>
<mrow>
<mi>C</mi>
<mi>o</mi>
<mi>n</mi>
<mi>s</mi>
<mi>t</mi>
</mrow>
</msub>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>cos&theta;</mi>
<mn>0</mn>
</msub>
</mrow>
<mrow>
<mi>c</mi>
<mi>o</mi>
<mi>s</mi>
<mrow>
<mo>(</mo>
<msub>
<mi>&theta;</mi>
<mn>0</mn>
</msub>
<mo>-</mo>
<msub>
<mi>&delta;</mi>
<mn>0</mn>
</msub>
<mo>)</mo>
</mrow>
<mo>-</mo>
<msub>
<mi>cos&theta;</mi>
<mn>0</mn>
</msub>
</mrow>
</mfrac>
</mrow>
(3) by virtual impedance value RvWith virtual inductor LvContravarianter voltage control ring is added to, i.e., virtual resistance is subtracted with reference potential
The reference value that pressure drop on anti-controls as inner ring Voltage loop is as follows in the expression of complex plane：
EO *(s)=Er(s)-(RV+sLV)·I(s)
In formula, EO *For the set-point of inner ring Voltage loop control；ErThat is reference potential, obtained by upper-level virtual synchronous machine control ring；I
For grid-connected current；S represents complex frequency；
(4) by the voltage set-point E obtained by previous stepO *As the Setting signal of inner ring voltage control loop, with inner ring control
Control signal of the output signal as inverter, wherein inner ring are the double-closed-loop control of voltage and current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040473.4A CN107658904B (en) | 2017-10-30 | 2017-10-30 | Impedance self-adaptive power decoupling control method considering virtual synchronous machine power angle influence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040473.4A CN107658904B (en) | 2017-10-30 | 2017-10-30 | Impedance self-adaptive power decoupling control method considering virtual synchronous machine power angle influence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107658904A true CN107658904A (en) | 2018-02-02 |
| CN107658904B CN107658904B (en) | 2020-09-25 |
Family
ID=61096020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711040473.4A Active CN107658904B (en) | 2017-10-30 | 2017-10-30 | Impedance self-adaptive power decoupling control method considering virtual synchronous machine power angle influence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107658904B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233495A (en) * | 2019-05-06 | 2019-09-13 | 深圳中电长城能源有限公司 | The output control method and micro-grid system of virtual synchronous machine in a kind of micro-grid system |
| CN111525614A (en) * | 2020-04-29 | 2020-08-11 | 北京交通大学 | Virtual synchronizer power decoupling method based on adaptive reactive power compensation |
| CN112018804A (en) * | 2019-05-29 | 2020-12-01 | 郑州大学 | AC-DC hybrid micro-grid coupling inverter cascade control implementation method |
| CN112165107A (en) * | 2020-10-19 | 2021-01-01 | 华中科技大学 | Control method and system for improving transient power angle stability of virtual synchronous machine |
| CN112234654A (en) * | 2020-07-30 | 2021-01-15 | 合肥工业大学 | LC resonance suppression method of virtual synchronous machine based on capacitance voltage differential feedback |
| CN112242788A (en) * | 2020-10-21 | 2021-01-19 | 西安理工大学 | Virtual direct current motor control method applied to bidirectional DC/DC converter |
| CN112290603A (en) * | 2019-07-22 | 2021-01-29 | 华北电力大学（保定） | VSG power decoupling control method of virtual steady-state synchronous negative impedance |
| CN112928764A (en) * | 2021-01-21 | 2021-06-08 | 广州智光电气技术有限公司 | Parallel energy storage system control method, parallel energy storage system and device |
| CN113300402A (en) * | 2021-05-26 | 2021-08-24 | 西安交通大学 | Self-adaptive virtual impedance control method and system for LCC converter station |
| WO2023185661A1 (en) * | 2022-03-29 | 2023-10-05 | 上海交通大学 | Control system for self-synchronizing voltage source full-power conversion wind turbine generator |
| EP4333236A1 (en) * | 2022-08-25 | 2024-03-06 | General Electric Renovables España S.L. | System and method for operating a renewable energy source in grid-forming mode (gfm) as a virtual synchronous machine (vsm) with damper winding emulation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011032265A1 (en) * | 2009-09-15 | 2011-03-24 | The University Of Western Ontario | Utilization of distributed generator inverters as statcom |
| CN104242717A (en) * | 2014-09-12 | 2014-12-24 | 合肥工业大学 | Self-adaption output impedance control method based on virtual synchronous machine |
| CN105811825A (en) * | 2016-03-22 | 2016-07-27 | 西安交通大学 | Current compensation based power decoupling method of virtual synchronous power generator |
| CN107134806A (en) * | 2017-06-28 | 2017-09-05 | 西安交通大学 | The decoupling current droop control method of shunt chopper in a kind of microgrid |
-
2017
- 2017-10-30 CN CN201711040473.4A patent/CN107658904B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011032265A1 (en) * | 2009-09-15 | 2011-03-24 | The University Of Western Ontario | Utilization of distributed generator inverters as statcom |
| CN104242717A (en) * | 2014-09-12 | 2014-12-24 | 合肥工业大学 | Self-adaption output impedance control method based on virtual synchronous machine |
| CN105811825A (en) * | 2016-03-22 | 2016-07-27 | 西安交通大学 | Current compensation based power decoupling method of virtual synchronous power generator |
| CN107134806A (en) * | 2017-06-28 | 2017-09-05 | 西安交通大学 | The decoupling current droop control method of shunt chopper in a kind of microgrid |
Non-Patent Citations (2)
| Title |
|---|
| LI M, WANG Y, XU N, ET AL: "A novel virtual synchronous generator control strategy based on improved swing equation emulating and power decoupling method", 《IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION》 * |
| ZHANG H, KIM S, SUN Q, ET AL.: "Distributed adaptive virtual impedance control for accurate reactive power sharing based on consensus control in microgrids", 《IEEE TRANSACTIONS ON SMART GRID 》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233495A (en) * | 2019-05-06 | 2019-09-13 | 深圳中电长城能源有限公司 | The output control method and micro-grid system of virtual synchronous machine in a kind of micro-grid system |
| CN112018804B (en) * | 2019-05-29 | 2022-02-22 | 郑州大学 | AC-DC hybrid micro-grid coupling inverter cascade control implementation method |
| CN112018804A (en) * | 2019-05-29 | 2020-12-01 | 郑州大学 | AC-DC hybrid micro-grid coupling inverter cascade control implementation method |
| CN112290603A (en) * | 2019-07-22 | 2021-01-29 | 华北电力大学（保定） | VSG power decoupling control method of virtual steady-state synchronous negative impedance |
| CN111525614A (en) * | 2020-04-29 | 2020-08-11 | 北京交通大学 | Virtual synchronizer power decoupling method based on adaptive reactive power compensation |
| CN112234654A (en) * | 2020-07-30 | 2021-01-15 | 合肥工业大学 | LC resonance suppression method of virtual synchronous machine based on capacitance voltage differential feedback |
| CN112234654B (en) * | 2020-07-30 | 2022-10-04 | 合肥工业大学 | LC resonance suppression method of virtual synchronous machine based on capacitance voltage differential feedback |
| CN112165107A (en) * | 2020-10-19 | 2021-01-01 | 华中科技大学 | Control method and system for improving transient power angle stability of virtual synchronous machine |
| CN112242788A (en) * | 2020-10-21 | 2021-01-19 | 西安理工大学 | Virtual direct current motor control method applied to bidirectional DC/DC converter |
| CN112928764A (en) * | 2021-01-21 | 2021-06-08 | 广州智光电气技术有限公司 | Parallel energy storage system control method, parallel energy storage system and device |
| CN112928764B (en) * | 2021-01-21 | 2023-12-15 | 广州智光电气技术有限公司 | Parallel energy storage system control method, parallel energy storage system and device |
| CN113300402A (en) * | 2021-05-26 | 2021-08-24 | 西安交通大学 | Self-adaptive virtual impedance control method and system for LCC converter station |
| CN113300402B (en) * | 2021-05-26 | 2023-01-24 | 西安交通大学 | Self-adaptive virtual impedance control method and system for LCC converter station |
| WO2023185661A1 (en) * | 2022-03-29 | 2023-10-05 | 上海交通大学 | Control system for self-synchronizing voltage source full-power conversion wind turbine generator |
| EP4333236A1 (en) * | 2022-08-25 | 2024-03-06 | General Electric Renovables España S.L. | System and method for operating a renewable energy source in grid-forming mode (gfm) as a virtual synchronous machine (vsm) with damper winding emulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107658904B (en) | 2020-09-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107658904A (en) | Consider the impedance self-adaptive power decoupled control method that virtual synchronous machine generator rotor angle influences | |
| CN108832657B (en) | Control method for virtual synchronous motor of alternating current-direct current hybrid microgrid bidirectional power converter | |
| Clark et al. | Modeling of GE wind turbine-generators for grid studies | |
| CN112217239B (en) | Energy storage electromechanical transient modeling method based on virtual synchronous generator technology | |
| WO2022077847A1 (en) | Virtual synchronous machine control method for hybrid microgrid mmc interconnected converter | |
| CN102074967B (en) | Method for controlling energy storage type wind power station with synchronization property | |
| Qiao et al. | Effects of FACTS devices on a power system which includes a large wind farm | |
| CN109861279A (en) | A kind of rotary inertia self-adaptation control method suitable for virtual synchronous generator | |
| CN108092308A (en) | A kind of distributed virtual synchronous generator low voltage traversing control method | |
| CN115313419B (en) | Direct-drive wind power system control method and system based on network-building type converter | |
| CN110476315A (en) | For by the method in electrical power feed-in power supply network | |
| CN107181281A (en) | Circulation inhibition method between a kind of isolated island microgrid shunt chopper | |
| CN109038691A (en) | Hybrid power electronic transformer frequency modulation and voltage modulation control strategy based on virtual inertia | |
| US11735928B2 (en) | Multi-port grid forming control for grid interties | |
| Qiao et al. | Power quality and dynamic performance improvement of wind farms using a STATCOM | |
| CN107104447A (en) | Virtual synchronous generator control method based on second order broad sense virtual inertia | |
| CN107294137A (en) | Dual feedback wind power generation system pusher side current transformer is counter to push away variable structure control system and method | |
| Gao et al. | A fast high-precision model of the doubly-fed pumped storage unit | |
| CN105914764B (en) | A kind of damping on-line tuning method of matching energy storage surplus | |
| Zhang et al. | Cable overcurrent control strategy of stand-alone brushless doubly-fed power generation system | |
| Shuai et al. | Research on control technology of distributed power generation virtual synchronous generator | |
| CN111049189B (en) | Grid-connected impact current prediction and virtual inertia selection method containing virtual inertia model | |
| CN103855716A (en) | Intelligent FLC-PID mixed STATCOM control method | |
| Li et al. | Parallel impedance-reshaping control strategy for suppressing wide range high-frequency resonance of shunt compensated DFIG system | |
| CN102255323A (en) | Method for calculating reactive power limits of double-feed wind generating set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |