CN110071513A - A method of it is vibrated using can inhibit output power to virtual synchronous generator control - Google Patents
A method of it is vibrated using can inhibit output power to virtual synchronous generator control Download PDFInfo
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- CN110071513A CN110071513A CN201910315481.8A CN201910315481A CN110071513A CN 110071513 A CN110071513 A CN 110071513A CN 201910315481 A CN201910315481 A CN 201910315481A CN 110071513 A CN110071513 A CN 110071513A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The present invention uses the frequency detecting method based on SDFT algorithm in virtual synchronous generator control strategy, realizes the accurate measurement to network voltage frequency, ensure that using can inhibit output power oscillation to the method for virtual synchronous generator controlP refAccuracy；Virtual automatic frequency adjuster is introduced in the control of active power regulation simultaneously, realizes that frequency is adjusted using proportional component.The rotary inertia and damping characteristic of synchronous generator are simulated in active power controller；Idle sagging control and virtual pressure regulator are introduced in reactive power adjusting, wherein virtual pressure regulator uses proportional component；Realize simulation of the gird-connected inverter to rotary inertia and damping characteristic, and when grid-connected active power and reactive power adjusting, promote the detection speed and accuracy of grid entry point electric voltage frequency, enhancing inverter inhibits itself output frequency and power swing ability, and the rejection ability to disturbance fluctuation, the stability of increase system, it is ensured that stable system performance is reliable.
Description
Technical field
The present invention relates to one of virtual synchronous generators and microgrid to be vibrated using can inhibit output power to void
The method of quasi- synchronous generator control.
Background technique
With becoming increasingly conspicuous for energy problem and problem of environmental pollution, traditional fossil energy is gradually unable to satisfy the mankind and can hold
The target of supervention exhibition receives extensive and lasting concern using renewable energy as the micro-capacitance sensor of main energy sources；Micro-capacitance sensor
In most distributed generation resource require to be linked into power grid by power electronic devices such as inverters, power electronic devices
Respond rapid feature make inverter have control flexibly, the short feature of transient state time but do not have inertia and damping, and
Inhibit the ability of interference and fluctuation, system stability is bad.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind so that gird-connected inverter is also had damping and inertia,
It promotes inverter and inhibits itself output frequency and power swing ability, and to the rejection ability of disturbance fluctuation, increase system
Stability, using can inhibit output power oscillation to the method for virtual synchronous generator control.
The present invention, which uses, can inhibit output power oscillation to the method for virtual synchronous generator control, it is characterised in that:
Using the frequency detecting method based on SDFT algorithm, accurate detection to network voltage frequency introduces conventional synchronization
The rotor equation of generator simulates the rotary inertia and damping characteristic of synchronous generator, while in the control of active power regulation
It is middle to introduce virtual automatic frequency adjuster, it realizes that frequency is adjusted using proportional component, is introduced in reactive power adjusting idle
Sagging control and virtual pressure regulator, wherein virtual pressure regulator uses proportional component；
Specific control method the following steps are included:
The first step calculates voltage fundamental component using DFT algorithm；
Second step considers system frequency deviation, seeks the DFT fundamental component at three continuous moment；
Third step solves frequency estimation；
The frequency values solved in third step are converted into rotational angular velocity by the 4th step, are brought into virtual synchronous power generation
In machine control；
By introducing the rotor equation of synchronous generator, the rotor inertia and damping characteristic of synchronous generator are simulated；
5th step is introduced into sagging control into the real power control of virtual synchronous generator, using virtual automatic frequency tune
Device is saved, realizes and the access point frequency departure of virtual synchronous generator is responded；
6th step utilizes the automatic voltage regulator AVR principle in synchronous generator, i.e. automatic voltage
Regulator, AVR, AVR are only taken as proportional component, calculate voltage regulated value, realize the voltage control to virtual synchronous generator
System；
Part also is adjusted comprising reactive power in virtual potential, the Reactive Power Control in virtual synchronous generator；
7th step characterizes no-load electromotive force when inverter off-grid operation with the no-load electromotive force of virtual synchronous generator,
The virtual video gesture instruction of virtual synchronous generator adjusts by the no-load electromotive force of virtual synchronous generator, reactive power, voltage
Regulated value is constituted.
Frequency is the π f of ω=2 in the DFT algorithm of the first step, and amplitude Vm, the sinusoidal voltage v (t) that phase angle is φ are counted
Calculate formula are as follows:
V (t)=Vmcos(ωt+φ)；
The sample frequency of the sinusoidal voltage v (t) is 50N Hz, sampled value are as follows:
Wherein, k=0,1,2 ..., N-1
Further v (t) can be expressed as
Wherein
Respective frequencies are the voltage fundamental component of 50Hz in DFT are as follows:
In the DFT fundamental component of the second step, specified angle rotational frequency be the π of ω=2 (50+ Δ f), according to DFT algorithm,
It obtains
vr=Ar+Br
Wherein
Definition
To
vr+1=Ar+1+Br+1=Ar×a+Br×a-1
vr+2=Ar+2+Br+2=Ar×a2+Br×a-2
Finally obtain vr、vr+1、vr+2The fundamental component at three moment；
In the third step,
vr+1×a2-(vr+vr+2)×a+vr+1=0
:
It is available according to (* *)
Re is to take real part operation；
Rotor equation in 4th step are as follows:
Wherein PrefFor equivalent mechanical output, PeFor electromagnetic power, J is virtual rotation inertia, ωvsgTurn for hypothetical rotor
Dynamic angular speed, D are automatic virtual blocks coefficient；
Δ ω=ωref-ωgrid
Wherein ωrefFor specified rotational angular velocity；
Change is marked to it to obtain
Wherein τaFor machinery inertial time constant；
Virtual automatic frequency adjuster uses ratio also link in 5th step, specific as follows:
Δ P=Kω(ωref-ωgrid)
KωFor sagging coefficient of frequency modulation, ωgridFor virtual synchronous generator access point voltage rotational angular velocity；
In 6th step, voltage regulated value are as follows:
ΔEU=Ku(Uref-U)
In formula: Ku is voltage regulation coefficient, and U and Uref are respectively true value and the instruction of inverter output voltage virtual value
Value；
Reactive power adjustment portion is divided into:
ΔEQ=Kq(Qref-Q)
In formula: Kq is Reactive-power control coefficient；Qref and Q is the reactive command value and idle output valve of inverter；
In 7th step, the virtual video gesture instruction expression formula of virtual synchronous generator is
E=E0+ΔEU+ΔEQ；
The sagging coefficient of frequency modulation KωFor 20p.u.
Automatic virtual blocks coefficient D is 400
Specified rotational angular velocity reference value ωrefFor 1p.u.
Specified angle rotational frequency ω is 100*pi rad/s
Machinery inertial timeconstantτaFor 2s
Active reference value PsetFor 1p.u.
ωLP,PLLFor 500rad/s
kP, PLLIt is 0.084
Ki,PLLIt is 4.69；
Regulating time is 0.02s.
The present invention is generated electricity using can inhibit output power oscillation to the method for virtual synchronous generator control in virtual synchronous
The frequency detecting method based on SDFT algorithm is used in machine control strategy, realizes the accurate measurement to network voltage frequency,
It ensure that PrefAccuracy；Simultaneously virtual automatic frequency adjuster is introduced in the control of active power regulation, using than
Example link realizes that frequency is adjusted.The rotary inertia and damping characteristic of synchronous generator are simulated in active power controller；In nothing
Idle sagging control and virtual pressure regulator are introduced in function power regulation, wherein virtual pressure regulator uses proportional component；It realizes
Gird-connected inverter to the simulation of rotary inertia and damping characteristic and it is grid-connected when active power and reactive power adjusting, promoted
The detection speed and accuracy of grid entry point electric voltage frequency, enhancing inverter inhibit itself output frequency and power swing ability, with
And the rejection ability to disturbance fluctuation, increase the stability of system, it is ensured that stable system performance is reliable.
Detailed description of the invention
Fig. 1 is that use of the embodiment of the present invention can inhibit output power oscillation to the void of the method for virtual synchronous generator control
Quasi- synchronous generator main circuit topology；
Fig. 2 is that use of the embodiment of the present invention can inhibit output power oscillation to the void of the method for virtual synchronous generator control
Quasi- synchronous generator real power control block diagram；
Fig. 3 is that use of the embodiment of the present invention can inhibit output power oscillation to the void of the method for virtual synchronous generator control
Quasi- synchronous generator rotary inertia and damping characteristic simulate control block diagram；
Fig. 4 is that use of the embodiment of the present invention can inhibit output power oscillation to the void of the method for virtual synchronous generator control
The quasi- idle control block diagram of synchronous generator.
Specific embodiment
As shown, it is a kind of using can inhibit output power oscillation to the method for virtual synchronous generator control, it uses
The virtual synchronous generator control strategy of novel frequency detection method, belongs to virtual synchronous generator and microgrid field.
(1) voltage fundamental component is calculated using DFT algorithm
It is the π f of ω=2, amplitude V for frequencym, for phase angle is the sinusoidal voltage v (t) of φ, expression formula is as follows:
V (t)=Vm cos(ωt+φ)
Assuming that the sample frequency of voltage v (t) is 50N Hz, sampled value can be expressed as
Wherein, k=0,1,2 ..., N-1
Further v (t) can be expressed as
Wherein
The voltage fundamental component that respective frequencies are 50Hz in DFT is
(2) consider system frequency deviation, seek the DFT fundamental component at three continuous moment
Consider frequency departure, specified angle rotational frequency be the π of ω=2 (50+ Δ f), according to DFT algorithm, available vr=Ar
+Br
Wherein
Definition
To
vr+1=Ar+1+Br+1=Ar×a+Br×a-1
vr+2=Ar+2+Br+2=Ar×a2+Br×a-2
Finally obtain vr、vr+1、vr+2The fundamental component at three moment.
(3) frequency estimation is solved.
Because
vr+1×a2-(vr+vr+2)×a+vr+1=0
It is available
It is available according to formula (* *)
Re is to take real part operation.
(4) frequency values asked are converted into rotational angular velocity, are brought into virtual synchronous generator control.
By introducing the rotor equation of synchronous generator, the rotor inertia and damping characteristic of synchronous generator are simulated.Rotor
Equation is as follows
Wherein PrefFor equivalent mechanical output, PeFor electromagnetic power, J is virtual rotation inertia, ωvsgTurn for hypothetical rotor
Dynamic angular speed, D are automatic virtual blocks coefficient；
Δ ω=ωref-ωgrid
Wherein ωrefFor specified rotational angular velocity.
Change is marked to it to obtain
Wherein τaFor machinery inertial time constant.
(5) sagging control is introduced into the real power control of virtual synchronous generator, using virtual automatic frequency adjuster,
It realizes and the access point frequency departure of virtual synchronous generator is responded.Virtual automatic frequency adjuster uses ratio also link,
It is specific as follows:
Δ P=Kω(ωref-ωgrid)
KωFor sagging coefficient of frequency modulation, ωgridFor virtual synchronous generator access point voltage rotational angular velocity.
The beneficial effects of the present invention are the fast and effective detections that the frequency detecting method based on proposition is capable of frequency, simultaneously
P in virtual synchronous generatorrefVariation it is also accurate, it is more accurate to the simulation of active droop characteristic.
(6) it in order to realize the voltage control to virtual synchronous generator, is adjusted using the automatic voltage in synchronous generator
Device (automatic voltage regulator, AVR) principle, AVR is only taken as proportional component, then voltage regulated value is
ΔEU=Ku(Uref-U)
In formula: KuFor voltage regulation coefficient, U and UrefThe respectively true value of inverter output voltage virtual value and instruction
Value.
In order to realize the Reactive Power Control in virtual synchronous generator, need to adjust comprising reactive power in virtual potential
Part
ΔEQ=Kq(Qref-Q)
In formula: KqFor Reactive-power control coefficient；QrefIt is the reactive command value and idle output valve of inverter with Q.
In addition to this no-load electromotive force E of virtual synchronous generator is also needed0, when can characterize inverter off-grid operation
No-load electromotive force.The virtual video gesture instruction of virtual synchronous generator contains above-mentioned three parts, and expression formula is
E=E0+ΔEU+ΔEQ。
Specific mentality of designing:
With becoming increasingly conspicuous for energy problem and problem of environmental pollution, traditional fossil energy is gradually unable to satisfy the mankind and can hold
The target of supervention exhibition receives extensive and lasting concern using renewable energy as the micro-capacitance sensor of main energy sources.Micro-capacitance sensor
In most distributed generation resource require to be linked into power grid by power electronic devices such as inverters, power electronic devices
Respond rapid feature make inverter have control flexibly, the short feature of transient state time but do not have inertia and damping and suppression
The ability of system interference and fluctuation.For this purpose, domestic and foreign scholars propose virtual synchronous generator, synchronous generator is simulated by control method
Sub- rotor characteristics, so that gird-connected inverter also has damping and inertia, so that promoting inverter inhibits itself output frequency and function
Rate fluctuates ability, while also improving the rejection ability to disturbance fluctuation, increases the stability of system.
Virtual synchronous generator is realized and is sent out virtual synchronous by adjusting given machine torque and frequency departure feedback command
The adjusting of the active command of motor.In addition, the calculating of the d/q axis component for the decoupling control realized in synchronous rotating frame
It will receive the influence of frequency and phase angle measurement result.Therefore, mains frequency is important in virtual synchronous Generator system control
Parameter.
In conventional control, the measurement of phase angle or frequency generally uses phaselocked loop (PLL), and generally uses in phaselocked loop
PI or PID controller realize the locking to voltage phase angle.The voltage rating of power grid improves the speed of frequency measurement as feedforward
Degree and accuracy.Have in PLL an integral element as voltage controlled oscillator (voltage controlled Oscillator,
VCO it) can be realized the measurement of phase angle.
The invention discloses a kind of virtual synchronous generator control strategy using novel frequency detection method, this method
The frequency detecting method based on SDFT algorithm is used in virtual synchronous generator control strategy, is realized to network voltage frequency
The accurate measurement of rate, ensure that PrefAccuracy.Virtual automatic frequency is introduced in the control of active power regulation simultaneously
Adjuster realizes that frequency is adjusted using proportional component.Simulated in active power controller synchronous generator rotary inertia and
Damping characteristic.Reactive power adjusting in introduce it is idle it is sagging control and virtual pressure regulator, wherein virtual pressure regulator use than
Example link.
The control strategy proposed, realize gird-connected inverter to the simulation of rotary inertia and damping characteristic and it is grid-connected when
The adjusting of active power and reactive power promotes the detection speed and accuracy of grid entry point electric voltage frequency, ensure that the property of system
Energy.
1. using the frequency detecting method based on SDFT algorithm, the accurate detection to network voltage frequency is realized, is drawn
The rotor equation for entering conventional synchronization generator simulates the rotary inertia and damping characteristic of synchronous generator, while in wattful power
Virtual automatic frequency adjuster is introduced in the control that rate is adjusted, realizes that frequency is adjusted using proportional component, in reactive power
Idle sagging control and virtual pressure regulator are introduced in adjusting, wherein virtual pressure regulator uses proportional component.
2. considering frequency departure, the fundamental component v of the voltage at three continuous moment is solvedr、vr+1、vr+2, eventually solve
Measurement frequency is outWherein
3. the rotor inertia and damping characteristic of synchronous generator are simulated by the rotor equation for introducing synchronous generator,Wherein PrefFor equivalent mechanical output, PeFor electromagnetic power, J is used to for virtual rotation
Amount, ωvsgFor hypothetical rotor rotational angular velocity, D is automatic virtual blocks coefficient.
4. sagging control is introduced into the real power control of virtual synchronous generator, using virtual automatic frequency adjuster,
It realizes and the access point frequency departure of virtual synchronous generator is responded, virtual automatic frequency adjuster uses ratio also link,
Δ P=Kω(ωref-ωgrid)。
5. AVR is only taken as proportional component using the automatic voltage regulator AVR principle in synchronous generator, voltage is adjusted
Value is Δ EU=Ku(Uref- U), in order to realize the Reactive Power Control in virtual synchronous generator, needed in virtual potential include
Reactive power adjusts part Δ EQ=Kq(Qref- Q), additionally need the no-load electromotive force E of virtual synchronous generator0, virtual same
The virtual video gesture instruction of step generator contains above-mentioned three parts.
The purpose of the invention is to promote the detection performance of network voltage frequency in virtual synchronous generator, void ensure that
Quasi- simulation of the synchronous generator to inertia and characteristic, proposes a kind of virtual synchronous generator using novel frequency detection method
Control strategy.
Embodiment:
Using Fig. 2, Fig. 3 and VSG control strategy shown in Fig. 4, and emulation mould is built based on the topologies of Fig. 1
Type, in order to compare traditional PLL frequency detecting effect, system relevant parameter is as follows:
Design method can obtain voltage reference value according to the present invention, and reusing conventional voltage double current loop modulation can be real
Now to the control of output voltage, use regulating time of the PLL based on the PI routine controlled in frequency detecting for 0.43s, and
Use the regulating time of the fast frequency detection method in this patent for 0.02s, the speed of frequency detecting is promoted obvious.
Claims (10)
1. a kind of method vibrated using can inhibit output power to virtual synchronous generator control, it is characterised in that:
Using the frequency detecting method based on SDFT algorithm, accurate detection to network voltage frequency introduces conventional synchronization power generation
The rotor equation of machine is simulated the rotary inertia and damping characteristic of synchronous generator, while being drawn in the control of active power regulation
Enter virtual automatic frequency adjuster, realizes that frequency is adjusted using proportional component, introduced in reactive power adjusting idle sagging
Control and virtual pressure regulator, wherein virtual pressure regulator uses proportional component；
Specific control method the following steps are included:
The first step calculates voltage fundamental component using DFT algorithm；
Second step considers system frequency deviation, seeks the DFT fundamental component at three continuous moment；
Third step solves frequency estimation；
The frequency values solved in third step are converted into rotational angular velocity by the 4th step, are brought into virtual synchronous generator control
In system；
By introducing the rotor equation of synchronous generator, the rotor inertia and damping characteristic of synchronous generator are simulated；
5th step is introduced into sagging control into the real power control of virtual synchronous generator, using virtual automatic frequency adjuster,
It realizes and the access point frequency departure of virtual synchronous generator is responded；
6th step utilizes the automatic voltage regulator AVR principle in synchronous generator, i.e. automatic voltage
Regulator, AVR, AVR are only taken as proportional component, calculate voltage regulated value, realize the voltage control to virtual synchronous generator
System；
Part also is adjusted comprising reactive power in virtual potential, the Reactive Power Control in virtual synchronous generator；
7th step characterizes no-load electromotive force when inverter off-grid operation with the no-load electromotive force of virtual synchronous generator, virtually
The virtual video gesture instruction of synchronous generator is adjusted by the no-load electromotive force of virtual synchronous generator, reactive power, voltage is adjusted
Value is constituted.
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 2. using according to claim 1
Sign is:
Frequency is the π f of ω=2 in the DFT algorithm of the first step, and amplitude Vm, the sinusoidal voltage v (t) that phase angle is φ calculate public
Formula are as follows:
V (t)=Vm cos(ωt+φ)。
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 3. using according to claim 2
Sign is: the sample frequency of the sinusoidal voltage v (t) is 50N Hz, sampled value are as follows:
Wherein, k=0,1,2 ..., N-1
Further v (t) can be expressed as
Wherein
Respective frequencies are the voltage fundamental component of 50Hz in DFT are as follows:
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 4. using according to claim 3
Sign is:
In the DFT fundamental component of the second step, specified angle rotational frequency is that (50+ Δ f) is obtained the π of ω=2 according to DFT algorithm
vr=Ar+Br
Wherein
Definition
To
vr+1=Ar+1+Br+1=Ar×a+Br×a-1
vr+2=Ar+2+Br+2=Ar×a2+Br×a-2
Finally obtain vr、vr+1、vr+2The fundamental component at three moment.
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 5. using according to claim 4
Sign is:
In the third step,
vr+1×a2-(vr+vr+2)×a+vr+1=0
:
It is available according to (* *)
Re is to take real part operation.
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 6. using according to claim 5
Sign is:
Rotor equation in 4th step are as follows:
Wherein PrefFor equivalent mechanical output, PeFor electromagnetic power, J is virtual rotation inertia, ωvsgFor hypothetical rotor angle of rotation
Speed, D are automatic virtual blocks coefficient；
Δ ω=ωref-ωgrid
Wherein ωrefFor specified rotational angular velocity；
Change is marked to it to obtain
Wherein τaFor machinery inertial time constant.
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 7. using according to claim 6
Sign is:
Virtual automatic frequency adjuster uses ratio also link in 5th step, specific as follows:
Δ P=Kω(ωref-ωgrid)
KωFor sagging coefficient of frequency modulation, ωgridFor virtual synchronous generator access point voltage rotational angular velocity.
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 8. using according to claim 7
Sign is:
In 6th step, voltage regulated value are as follows:
ΔEU=Ku(Uref-U)
In formula: Ku is voltage regulation coefficient, and U and Uref are respectively the true value and instruction value of inverter output voltage virtual value；
Reactive power adjustment portion is divided into:
ΔEQ=Kq(Qref-Q)
In formula: Kq is Reactive-power control coefficient；Qref and Q is the reactive command value and idle output valve of inverter.
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 9. using according to claim 8
Sign is:
In 7th step, the virtual video gesture instruction expression formula of virtual synchronous generator is
E=E0+ΔEU+ΔEQ。
It can inhibit output power oscillation to the method for virtual synchronous generator control, spy 10. using according to claim 9
Sign is:
The sagging coefficient of frequency modulation KωFor 20p.u.
Automatic virtual blocks coefficient D is 400
Specified rotational angular velocity reference value ωrefFor 1p.u.
Specified angle rotational frequency ω is 100*pi rad/s
Machinery inertial timeconstantτaFor 2s
Active reference value PsetFor 1p.u.
ωLP,PLLFor 500rad/s
kP, PLLIt is 0.084
Ki,PLLIt is 4.69；
Regulating time is 0.02s.
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| CN111431211A (en) * | 2020-05-07 | 2020-07-17 | 合肥学院 | Micro-grid inverter parallel control method based on active curve droop |
| CN112186797A (en) * | 2020-09-10 | 2021-01-05 | 南京国电南自电网自动化有限公司 | Damping control method and device for virtual synchronous machine and storage medium |
| CN117639123A (en) * | 2024-01-24 | 2024-03-01 | 国网湖北省电力有限公司 | Virtual synchronous machine active power control method and device for network-structured converter |
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| CN107634524A (en) * | 2017-09-20 | 2018-01-26 | 东南大学 | A kind of additional longitudinal forces method applied to virtual synchronous engine controller |
| CN107968591A (en) * | 2017-12-19 | 2018-04-27 | 哈尔滨工业大学 | Gird-connected inverter virtual inertia power decoupled control method based on prediction common point voltage |
| CN109510248A (en) * | 2018-10-19 | 2019-03-22 | 湖南大学 | It can inhibit the virtual synchronous inverter control method and storage medium of active oscillation |
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| CN106684921A (en) * | 2017-03-20 | 2017-05-17 | 重庆大学 | Inverter secondary-frequency-regulation control circuit based on virtual synchronous generator |
| CN107634524A (en) * | 2017-09-20 | 2018-01-26 | 东南大学 | A kind of additional longitudinal forces method applied to virtual synchronous engine controller |
| CN107968591A (en) * | 2017-12-19 | 2018-04-27 | 哈尔滨工业大学 | Gird-connected inverter virtual inertia power decoupled control method based on prediction common point voltage |
| CN109510248A (en) * | 2018-10-19 | 2019-03-22 | 湖南大学 | It can inhibit the virtual synchronous inverter control method and storage medium of active oscillation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431211A (en) * | 2020-05-07 | 2020-07-17 | 合肥学院 | Micro-grid inverter parallel control method based on active curve droop |
| CN112186797A (en) * | 2020-09-10 | 2021-01-05 | 南京国电南自电网自动化有限公司 | Damping control method and device for virtual synchronous machine and storage medium |
| CN117639123A (en) * | 2024-01-24 | 2024-03-01 | 国网湖北省电力有限公司 | Virtual synchronous machine active power control method and device for network-structured converter |
| CN117639123B (en) * | 2024-01-24 | 2024-04-09 | 国网湖北省电力有限公司 | Virtual synchronous machine active power control method and device for network-structured converter |
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