CN109378836A - A kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic - Google Patents
A kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic Download PDFInfo
- Publication number
- CN109378836A CN109378836A CN201811394452.7A CN201811394452A CN109378836A CN 109378836 A CN109378836 A CN 109378836A CN 201811394452 A CN201811394452 A CN 201811394452A CN 109378836 A CN109378836 A CN 109378836A
- Authority
- CN
- China
- Prior art keywords
- phase
- current
- harmonic
- generator
- side converter
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- 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
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The invention discloses a kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic.One group of three reactor is connected in series to grid-side converter three-phase input end respectively, one grid-side converter, a generator-side converter wear are realized into back-to-back type electrical connection by DC bus capacitance, one direct drive permanent magnetic synchronous generator is connected serially to generator-side converter wear output end, to construct permanent magnetism Wind turbines；Pass through harmonic current equal, opposite in phase to net side injection amplitude, and introducing resonant controller in pusher side makes permanent magnetism unit serve as part active filter, it may be implemented when uneven and harmonic distortion occurs for network voltage, inhibit the negative phase-sequence and harmonic current that introduce point of common coupling by non-equilibrium and nonlinear load, while electromagnetic torque caused by the pulsating power transmitted from net side to pusher side being inhibited to vibrate.
Description
Technical field
The present invention relates to a kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic,
It can be used as improvement control of the wind generator system based on permanent magnet synchronous motor when negative phase-sequence and harmonic distortion occur for network voltage
Method.
Background technique
It with the serious of energy crisis and problem of environmental pollution and deposits, the renewable energy such as development and utilization wind energy have become
The common recognition of countries in the world, the emphasis that more and more countries invest development wind-powered electricity generation as future electrical energy.Wind-driven generator is main
There are two types of types, i.e. double fed induction generators (doubly fed induction generator DFIG) and direct drive permanent magnetic
Synchronous generator (directly driven permanent magnet synchronous generator D-PMSG).Mesh
It is preceding based on the Wind turbines of DFIG on wind-power market in occupation of leading position, but based on the Wind turbines of D-PMSG due to it
The advantages that structure is simple, maintenance cost is low, power density is high, operational reliability is high, has been to be concerned by more and more people.In recent years
Come, is based especially on the Fast Construction of the full direct current wind power plant in sea of D-PMSG, cost-effective extensive wind energy on the sea convergence
The sight of people is increasingly entered with transmission mode.
From the point of view of the wind-electricity integration regulation of countries in the world, when power grid certain voltage fluctuation and flicker, three-phase occurs not
When the failures such as balance, harmonic distortion, it is desirable that wind-driven generator remains to keep coupling without off-the-line with power grid, i.e., must meet certain
Fault traversing service ability.In this regard, domestic and foreign scholars have made a lot of research work, some feasible control programs are proposed.
Existing document mainly has studied low voltage crossing of the grid-connected D-PMSG of total power in grid collapses
Energy.Under the conditions of normal grid voltage, general pusher side controls output generator power, and net side keeps DC link voltage.But
Rural area, Wind turbines are grid-connected weaker, and the voltage of coupled in common point may occur not due to unbalanced and nonlinear load
Balance and harmonic distortion.Moreover, D-PMSG should become power grid as installed capacity is increasing in power grid for wind-driven generator
Friendly power supply provides help to its fast quick-recovery when the grid collapses.
Summary of the invention
It is an object of the invention to be directed to the deficiency of existing scheme, a kind of D-PMSG pusher side and net side coordinated control are provided
Control method also functions to suppression to the electromagnetic torque oscillation of pusher side while inhibiting current fluctuation caused by network voltage distortion
Production is used, and the performance of noiseproof of permanent magnet generator system is significantly improved.
The purpose of the present invention is achieved through the following technical solutions: a kind of direct drive permanent magnetic synchronous generator is in injustice
Control method for coordinating under weighing apparatus and harmonic, method includes the following steps:
(1) permanent magnetism Wind turbines are constructed: one group of three reactor is connected in series to grid-side converter three-phase input respectively
End；One grid-side converter, a generator-side converter wear are realized into back-to-back type electrical connection by DC bus capacitance；By one
A direct drive permanent magnetic synchronous generator (D-PMSG) is connected serially to generator-side converter wear output end；
(2) grid-side converter of permanent magnetism Wind turbines is used under positive sequence synchronous rotating frame simultaneously to positive and negative sequence
The control method that electric current is controlled；
(3) generator-side converter wear of permanent magnetism Wind turbines is controlled using electric current monocycle and the controlling party of resonant controller is added
Method.
Further, in the step (2), the control method of grid-side converter the following steps are included:
(2.1) net side line voltage U is measuredgab、Ugbc、UgcaWith net side phase current Iga、Igb、Igc；
(2.2) line voltage that step (2.1) measures is converted into phase voltage Uga、Ugb、Ugc；
(2.3) the fundamental wave electrical network angular frequency π of ω=2 f is obtained by phase-locked loop moduleN, fNFor mains frequency, ω is accumulated
Partite transport is calculated to obtain power grid angle signal θ；
(2.4) Synchronous Reference Frame Transform that net side phase voltage is carried out to positive and negative sequence according to power grid angle signal θ obtains each same
Walk d, q axis component under reference frameNet side phase current is same according to power grid angle signal θ progress positive sequence
Coordinate transform is walked, d, q axis component under positive sequence synchronous reference coordinate system are obtained
(2.5) d, q axis component under each synchronous reference coordinate system that step (2.4) obtains are obtained into positive sequence by power equation
Current reference value under coordinate systemSince the control target of grid-side converter is to inhibit negative phase-sequence, harmonic current, net
The negative current instructions value of side controllerQuintuple harmonics current instruction valueThe seventh harmonic current instruction value
It should be set as zero；
(2.6) the sum of each current reference value for obtaining step (2.5) and the net side electricity under positive sequence synchronous reference coordinate system
StreamSubtract each other, obtains current on line side error signal Δ Igdq；
(2.7) the current on line side error signal Δ I for obtaining step (2.6)gdqIt is sent into proportional integration resonance (PI-R) control
Device is adjusted, and feedforward compensation term is added, and obtains voltage on line side signal Vgdq；
(2.8) the voltage on line side signal V for obtaining step (2.7)gdqAnti- Synchronous Reference Frame Transform is carried out, it is static to obtain two-phase
Voltage signal V under coordinate systemgαβ, by VgαβIt is sent into space vector modulation (SVPWM) module, control grid-side converter can be obtained
Pulse signal.
Further, in the step (3), the control method of generator-side converter wear the following steps are included:
(3.1) pusher side phase current I is measuredsa、Isb、Isc；
(3.2) by pusher side phase current according to the angle signal θ of direct drive permanent magnetic synchronous generatormCarry out positive sequence synchronous coordinate
Transformation, obtains d, q axis component I under synchronous reference coordinate systemsd、Isq；
(3.3) generator-side converter wear uses the control mode of rotor flux linkage orientation, available according to the torque equation of D-PMSG
D, q axis instruction value
(3.4) by Isd、IsqRespectively with the instruction value of respective axisSubtraction obtains side currents error
Signal delta Isdq；
(3.5) the side currents error signal Δ I for obtaining step (3.4)sdqIt is sent into proportional integration resonance (PI-R) control
Device is adjusted, and feedforward compensation term is added, and obtains pusher side voltage signal Vsdq；
(3.6) the pusher side voltage signal V for obtaining step (3.5)sdqAnti- Synchronous Reference Frame Transform is carried out, it is static to obtain two-phase
Voltage signal V under coordinate systemsαβ, by VsαβIt is sent into space vector modulation (SVPWM) module, control generator-side converter wear can be obtained
Pulse signal.
Further, the phase-locked loop module uses resonant mode PLL phaselocked loop, i.e., increase by two is humorous in conventional phase locked loops
Vibration frequency is respectively the resonance compensation device of 100Hz and 300Hz, eliminates network voltage negative phase-sequence and harmonic component to fundamental voltage with this
The influence of positive-sequence component frequency and phase-detection.
Further, proportional integration resonance (PI-R) controller is to increase by 2 times on the basis of traditional pi regulator
With resonance (Resonant, R) controller of 6 times of mains frequencies, floating regulation can be accurately and rapidly realized.
The invention has the following beneficial effects: under conditions of network voltage is in uneven and harmonic distortion, the present invention
Control method quickly current on line side can be inhibited to fluctuate, facilitate the recovery of electric network fault.Meanwhile making D-PMSG as part
The Active Power Filter-APF (APF) of capacity vibrates electromagnetic torque caused by pulsating power from net side to pusher side that transmit from
Good inhibiting effect can be played, the performance of noiseproof of permanent magnet generator system is significantly improved.
Detailed description of the invention
Fig. 1 shows the control method schematic diagrams of grid-side converter in the present invention；
Fig. 2 indicates the control method schematic diagram of generator-side converter wear in the present invention；
The schematic diagram of the resonant mode PLL introduced in the control of Fig. 3 expression D-PMSG grid-side converter；
The schematic diagram of the PI-R controller introduced in the control of Fig. 4 expression D-PMSG pusher side and grid-side converter；
Fig. 5 indicates that D-PMSG net side three-phase current is added before and after control method of the present invention under uneven and harmonic condition
Simulation waveform；
Fig. 6 indicates the fft analysis result of Fig. 5 simulation waveform；
Fig. 7 indicates that D-PMSG pusher side electromagnetic torque is added before and after control method of the present invention under uneven and harmonic condition
Simulation waveform；
Fig. 8 shows the fft analysis results of Fig. 7 simulation waveform.
Specific embodiment
The present invention provides a kind of control method of direct drive permanent magnetic synchronous generator under uneven and harmonic, can
It realizes when uneven and harmonic distortion occurs for network voltage, inhibits the coupled in common point introduced by non-equilibrium and nonlinear load
(PCC) negative phase-sequence and harmonic current, and electromagnetic torque caused by the pulsating power transmitted from net side to pusher side is inhibited to vibrate.It pushes away
Led the power and current reference of two current transformers, and introduce in the controls resonant controller achieve it is accurate, fast
The floating regulation of speed.
The invention will be further described with case study on implementation with reference to the accompanying drawing.
Referring to Fig.1, the net side controlling party of a kind of direct drive permanent magnetic synchronous generator control method for coordinating provided by the invention
Method the following steps are included:
1. a grid-side converter, a generator-side converter wear realize that back-to-back type electrically connects by DC bus capacitance
It connects, wherein the size of DC bus capacitance is 50mF；
2. one group of (three) reactor is connected in series to grid-side converter three-phase input end respectively, wherein reactor
Size be 0.2mH；
3. measuring net side line voltage Ugab、Ugbc、UgcaWith net side phase current Iga、Igb、Igc；
4. the line voltage that step 3 is measured is converted to phase voltage Uga、Ugb、Ugc, transformed representation are as follows:
5. the phase voltage that step 4 is obtained carries out the transformation of two-phase static coordinate, α, β axis point under two-phase stationary coordinate system is obtained
Measure Ugα、Ugβ, transformed representation are as follows:
6. the U that step 5 is obtainedgα、UgβThe fundamental wave electrical network angular frequency π of ω, ω=2 f is obtained by phase-locked loop moduleN, fNFor
Mains frequency carries out integral operation to ω and obtains power grid angle signal θ；
The present invention refers to a kind of resonant mode PLL Phase Lock Technique, i.e., increases by two resonance frequencies point in conventional phase locked loops
Not Wei 100Hz and 300Hz resonance compensation device, network voltage negative phase-sequence and harmonic component are eliminated to fundamental voltage positive-sequence component with this
The influence of frequency and phase-detection；Resonant mode PLL schematic diagram is as shown in Figure 3, wherein MRC is multifrequency resonance compensation device, by two
The resonant controller that cutoff frequency is 100Hz and 300Hz forms；
7. net side phase voltage to be carried out to the Synchronous Reference Frame Transform of positive and negative sequence according to power grid angle signal θ, each synchronous ginseng is obtained
Examine d, q axis component under coordinate systemNet side phase current is subjected to positive sequence synchronous coordinate according to power grid angle signal θ
Transformation, obtains d, q axis component under positive sequence synchronous reference coordinate systemPositive and negative sequence coordinate transform expression formula are as follows:
8. d, q axis component under each synchronous reference coordinate system that step 7 obtains are obtained positive-sequence coordinate system by power equation
Under current reference valueSince the control target of grid-side converter is to inhibit negative phase-sequence, harmonic current, net side controller
Negative current instructions valueQuintuple harmonics current instruction valueThe seventh harmonic current instruction valueIt should be set as
Zero, i.e., the current reference value calculation formula under each coordinate system are as follows:
Wherein, PgFor net side active power,
9. the sum of each current reference value that step 8 is obtained and the current on line side under positive sequence synchronous coordinate systemSubtract each other,
Obtain current on line side error signal Δ Igdq；
10. the current on line side error signal Δ I that step 9 is obtainedgdqProportional integration resonance (PI-R) controller is sent into carry out
It adjusts, and feedforward compensation term is added, obtain voltage on line side signal Vgdq, feedforward compensation term calculation formula is as follows:
Wherein, proportional integration resonance (PI-R) controller is used increases by 2 times and 6 times of electricity on the basis of traditional pi regulator
Resonance (Resonant, R) controller of net frequency, can make control system accurately and rapidly realize floating regulation, structural frames
Figure is as shown in figure 4, its transmission function is answered are as follows:
In formula: Kp、KiThe respectively ratio of PI controller, integral coefficient；Kr0、Kr1Respectively 2 frequencys multiplication, 6 frequency multiplication resonators
Resonance coefficient；ωc0、ωc1The cutoff frequency of respectively 2 frequencys multiplication, 6 frequency multiplication resonators.
11. the voltage on line side signal V that step 10 is obtainedgdqAnti- Synchronous Reference Frame Transform is carried out, two-phase stationary coordinate system is obtained
Under voltage signal Vgαβ, by VgαβIt is sent into space vector modulation (SVPWM) module, the pulse of control grid-side converter can be obtained
Signal.
Referring to Fig. 2, a kind of pusher side controlling party of direct drive permanent magnetic synchronous generator control method for coordinating provided by the invention
Method the following steps are included:
1. a direct drive permanent magnetic synchronous generator (D-PMSG) is connected serially to generator-side converter wear output end；
Wherein, D-PMSG rated power is 1MW；Voltage rating is 690V；Rated speed is 20r/min；Stator resistance is
16.28mΩ；D, q axis equivalent inductance is 1.109mH；Rotor flux is 5.74Wb；Number of pole-pairs is 48；
2. measuring pusher side phase current Isa、Isb、Isc；
3. by pusher side phase current according to the angle signal θ of direct drive permanent magnetic synchronous generatormCarry out the change of positive sequence synchronous coordinate
It changes, obtains d, q axis component I under synchronous reference coordinate systemsd、Isq, Formula of Coordinate System Transformation are as follows:
4. generator-side converter wear uses the control mode of rotor flux linkage orientation, d, q can be obtained according to the torque equation of D-PMSG
Axis instruction value
5. by d, q axis component Isd、IsqRespectively with the instruction value of respective axisSubtraction obtains pusher side electricity
Stream error signal delta Isdq, wherein since pusher side is by the way of rotor flux linkage orientation, so d shaft current reference valueIt should be
Zero, q shaft current reference value can be acquired according to the torque equation of D-PMSG:
Wherein, TeFor the electromagnetic torque of magneto, p is the number of pole-pairs of magneto, ψfFor the permanent magnetism of permanent magnet machine rotor
Body magnetic linkage；
6. the side currents error signal Δ I that step 5 is obtainedsdqProportional integration resonance (PI-R) controller is sent into carry out
It adjusts, and feedforward compensation term is added, obtain pusher side voltage signal Vsdq, feedforward compensation term calculation formula is as follows:
7. the pusher side voltage signal V that step 6 is obtainedsdqAnti- Synchronous Reference Frame Transform is carried out, is obtained under two-phase stationary coordinate system
Voltage signal Vsαβ, by VsαβIt is sent into space vector modulation (SVPWM) module, the pulse letter of control generator-side converter wear can be obtained
Number.
Fig. 5 indicates that D-PMSG net side three-phase current is added before and after control method of the present invention under uneven and harmonic condition
Simulation waveform.Wherein, net side three phase mains artificially injects negative phase-sequence and harmonic component in 0.2s, and present invention control is introduced in 0.3s
Method processed, by the validity for being compared to verifying harmonic suppressing method to the waveform that control front and back is added.By I in figuregabc
Waveform can be seen that harmonic current can not effectively be inhibited using conventional PI control device, harmonic content is higher in electric current；Work as addition
It is secondary to be obviously inhibited with fifth overtone when PI-R controller, effectively improve the sine of current waveform.
Fig. 6 indicates the fft analysis result of current on line side simulation waveform in Fig. 5.THD analysis in comparison diagram can be seen that
Secondary to substantially reduce with fifth overtone content, which has reached desired effect.
Fig. 7 indicates that D-PMSG pusher side electromagnetic torque is added before and after control method of the present invention under uneven and harmonic condition
Simulation waveform.As can be seen from Figure, due to the distortion of voltage on line side, the pulsating power transmitted to pusher side causes electromagnetic torque
Oscillation, after PI-R controller is added, torque pulsation is significantly suppressed.
Fig. 8 shows the fft analysis results of Fig. 7 simulation waveform.THD analysis in comparison diagram is as can be seen that harmonic content is aobvious
It writes and reduces, accurately and rapidly inhibit the harmonic component of electromagnetic torque.
In conclusion direct drive permanent magnetic synchronous generator disclosed in this invention is the uneven and harmonic under the conditions of
Pusher side, net side cooperative control method, can effectively inhibit the harmonic component of current on line side and electromagnetic torque, and the simulation experiment result is tested
The validity for having demonstrate,proved this method effectively inhibits current distortion, and eliminates the fluctuation of electromagnetic torque, can make permanent magnetism wind
Force generating system is in good operating status.
Claims (5)
1. a kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic, which is characterized in that
Method includes the following steps:
(1) permanent magnetism Wind turbines are constructed: one group of three reactor is connected in series to grid-side converter three-phase input end respectively；It will
One grid-side converter, a generator-side converter wear realize back-to-back type electrical connection by DC bus capacitance；It is straight by one
Drive type permanent magnet synchronous generator D-PMSG is connected serially to generator-side converter wear output end；
(2) grid-side converter of permanent magnetism Wind turbines is used under positive sequence synchronous rotating frame simultaneously to positive and negative sequence electric current
The control method controlled；
(3) generator-side converter wear of permanent magnetism Wind turbines is controlled using electric current monocycle and the control method of resonant controller is added.
2. a kind of coordination control of the direct drive permanent magnetic synchronous generator according to claim 1 under uneven and harmonic
Method processed, which is characterized in that in the step (2), the control method of grid-side converter the following steps are included:
(2.1) net side line voltage U is measuredgab、Ugbc、UgcaWith net side phase current Iga、Igb、Igc；
(2.2) line voltage that step (2.1) measures is converted into phase voltage Uga、Ugb、Ugc；
(2.3) the fundamental wave electrical network angular frequency π of ω=2 f is obtained by phase-locked loop moduleN, fNFor mains frequency, integral fortune is carried out to ω
Calculation obtains power grid angle signal θ；
(2.4) Synchronous Reference Frame Transform that net side phase voltage is carried out to positive and negative sequence according to power grid angle signal θ obtains each synchronous ginseng
Examine d, q axis component under coordinate systemNet side phase current is subjected to the synchronous seat of positive sequence according to power grid angle signal θ
Mark transformation, obtains d, q axis component under positive sequence synchronous reference coordinate system
(2.5) d, q axis component under each synchronous reference coordinate system that step (2.4) obtains are obtained into positive-sequence coordinate by power equation
Current reference value under systemSince the control target of grid-side converter is to inhibit negative phase-sequence, harmonic current, net side control
The negative current instructions value of deviceQuintuple harmonics current instruction valueThe seventh harmonic current instruction valueIt should be arranged
It is zero；
(2.6) the sum of each current reference value for obtaining step (2.5) and the current on line side under positive sequence synchronous reference coordinate systemSubtract each other, obtains current on line side error signal Δ Igdq；
(2.7) the current on line side error signal Δ I for obtaining step (2.6)gdqBe sent into proportional integration resonance (PI-R) controller into
Row is adjusted, and feedforward compensation term is added, and obtains voltage on line side signal Vgdq；
(2.8) the voltage on line side signal V for obtaining step (2.7)gdqAnti- Synchronous Reference Frame Transform is carried out, two-phase static coordinate is obtained
Voltage signal V under systemgαβ, by VgαβIt is sent into space vector modulation (SVPWM) module, the arteries and veins of control grid-side converter can be obtained
Rush signal.
3. a kind of coordination control of the direct drive permanent magnetic synchronous generator according to claim 1 under uneven and harmonic
Method processed, which is characterized in that in the step (3), the control method of generator-side converter wear the following steps are included:
(3.1) pusher side phase current I is measuredsa、Isb、Isc；
(3.2) by pusher side phase current according to the angle signal θ of direct drive permanent magnetic synchronous generatormPositive sequence Synchronous Reference Frame Transform is carried out,
Obtain d, q axis component I under synchronous reference coordinate systemsd、Isq；
(3.3) generator-side converter wear uses the control mode of rotor flux linkage orientation, and d, q axis can be obtained according to the torque equation of D-PMSG
Instruction value
(3.4) by Isd、IsqRespectively with the instruction value of respective axisSubtraction obtains side currents error signal Δ
Isdq；
(3.5) the side currents error signal Δ I for obtaining step (3.4)sdqBe sent into proportional integration resonance (PI-R) controller into
Row is adjusted, and feedforward compensation term is added, and obtains pusher side voltage signal Vsdq；
(3.6) the pusher side voltage signal V for obtaining step (3.5)sdqAnti- Synchronous Reference Frame Transform is carried out, two-phase static coordinate is obtained
Voltage signal V under systemsαβ, by VsαβIt is sent into space vector modulation (SVPWM) module, the arteries and veins of control generator-side converter wear can be obtained
Rush signal.
4. a kind of coordination control of the direct drive permanent magnetic synchronous generator according to claim 2 under uneven and harmonic
Method processed, which is characterized in that the phase-locked loop module uses resonant mode PLL phaselocked loop, i.e., increases by two in conventional phase locked loops
Resonance frequency is respectively the resonance compensation device of 100Hz and 300Hz, eliminates network voltage negative phase-sequence and harmonic component to fundamental wave electricity with this
The influence of positive pressure order components frequency and phase-detection.
5. a kind of association of the direct drive permanent magnetic synchronous generator according to claim 2 or 3 under uneven and harmonic
Control method, which is characterized in that proportional integration resonance (PI-R) controller is to increase on the basis of traditional pi regulator
Add 2 times of resonance (Resonant, R) controllers with 6 times of mains frequencies, can accurately and rapidly realize floating regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394452.7A CN109378836A (en) | 2018-11-21 | 2018-11-21 | A kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811394452.7A CN109378836A (en) | 2018-11-21 | 2018-11-21 | A kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109378836A true CN109378836A (en) | 2019-02-22 |
Family
ID=65377108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811394452.7A Pending CN109378836A (en) | 2018-11-21 | 2018-11-21 | A kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109378836A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048457A (en) * | 2019-04-28 | 2019-07-23 | 中国石油大学(华东) | A kind of double-fed blower virtual synchronous control method having low voltage ride-through function |
| CN111884229A (en) * | 2020-08-19 | 2020-11-03 | 南方电网科学研究院有限责任公司 | Asynchronous and synchronous control method and system for back-to-back flexible direct current power transmission system |
| CN112701941A (en) * | 2019-10-21 | 2021-04-23 | 广东美的白色家电技术创新中心有限公司 | Inverter compensation method and device, electrical equipment and storage medium |
| CN113067371A (en) * | 2021-03-25 | 2021-07-02 | 哈尔滨工业大学 | Subsynchronous oscillation suppression method for direct-drive permanent magnet wind turbine generator compensated by machine side converter |
| CN116154845A (en) * | 2022-12-08 | 2023-05-23 | 中国石油大学(华东) | Control method of H-bridge serial-parallel switching type forced excitation converter based on DAB |
| EP4195437A1 (en) * | 2021-12-13 | 2023-06-14 | General Electric Renovables España S.L. | Electrical power system having active harmonic filter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944840A (en) * | 2010-08-11 | 2011-01-12 | 四方蒙华电（北京）自动化技术有限公司 | Control method for eliminating DC harmonic voltage for grid-side converter of double-fed wind power generator |
| CN102305886A (en) * | 2011-05-31 | 2012-01-04 | 浙江大学 | Fundamental voltage synchronous signal detection method during harmonic distortion and unbalance of network voltage |
| CN103997050A (en) * | 2014-06-03 | 2014-08-20 | 重庆大学 | Method for obtaining balanced and non-distortion total output current of double-fed window power system under the condition of imbalanced harmonic-distortion grid voltage |
| CN104701846A (en) * | 2015-03-31 | 2015-06-10 | 许昌学院 | Current transformer harmonic compensation control method of permanent magnetic direct drive wind power system |
| CN105024608A (en) * | 2015-07-14 | 2015-11-04 | 浙江大学 | Matrix converter-based PMSG proportional-integral resonance control method under unbalanced power grid |
| CN106230031A (en) * | 2016-09-30 | 2016-12-14 | 重庆大学 | Containing permanent magnet direct-drive wind energy turbine set and the control method mixing wind farm group of asynchronous wind energy turbine set under unbalanced source voltage |
| CN107453363A (en) * | 2017-09-25 | 2017-12-08 | 湖南大学 | Direct-drive permanent-magnetism blower fan harmonics restraint optimization method under line voltage unbalanced fault |
| CN108321844A (en) * | 2018-03-15 | 2018-07-24 | 重庆大学 | The control method of permanent magnet direct-drive wind generator system under harmonic voltage |
-
2018
- 2018-11-21 CN CN201811394452.7A patent/CN109378836A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944840A (en) * | 2010-08-11 | 2011-01-12 | 四方蒙华电（北京）自动化技术有限公司 | Control method for eliminating DC harmonic voltage for grid-side converter of double-fed wind power generator |
| CN102305886A (en) * | 2011-05-31 | 2012-01-04 | 浙江大学 | Fundamental voltage synchronous signal detection method during harmonic distortion and unbalance of network voltage |
| CN103997050A (en) * | 2014-06-03 | 2014-08-20 | 重庆大学 | Method for obtaining balanced and non-distortion total output current of double-fed window power system under the condition of imbalanced harmonic-distortion grid voltage |
| CN104701846A (en) * | 2015-03-31 | 2015-06-10 | 许昌学院 | Current transformer harmonic compensation control method of permanent magnetic direct drive wind power system |
| CN105024608A (en) * | 2015-07-14 | 2015-11-04 | 浙江大学 | Matrix converter-based PMSG proportional-integral resonance control method under unbalanced power grid |
| CN106230031A (en) * | 2016-09-30 | 2016-12-14 | 重庆大学 | Containing permanent magnet direct-drive wind energy turbine set and the control method mixing wind farm group of asynchronous wind energy turbine set under unbalanced source voltage |
| CN107453363A (en) * | 2017-09-25 | 2017-12-08 | 湖南大学 | Direct-drive permanent-magnetism blower fan harmonics restraint optimization method under line voltage unbalanced fault |
| CN108321844A (en) * | 2018-03-15 | 2018-07-24 | 重庆大学 | The control method of permanent magnet direct-drive wind generator system under harmonic voltage |
Non-Patent Citations (2)
| Title |
|---|
| LINASH P. KUNJUMUHAMMED等: "Stability Analysis of a PMSG-Based Large Offshore Wind Farm Connected to a VSC-HVDC", 《IEEE TRANSACTIONS ON ENERGY CONVERSION》 * |
| LIXIA SUN等: "Design and optimization of control parameters based on direct-drive permanent magnet synchronous generator for wind power system", 《2013 IEEE 8TH CONFERENCE ON INDUSTRIAL ELECTRONICS AND APPLICATIONS (ICIEA)》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048457A (en) * | 2019-04-28 | 2019-07-23 | 中国石油大学(华东) | A kind of double-fed blower virtual synchronous control method having low voltage ride-through function |
| CN110048457B (en) * | 2019-04-28 | 2023-05-26 | 中国石油大学(华东) | Virtual synchronous control method of doubly-fed fan with low voltage ride through function |
| CN112701941A (en) * | 2019-10-21 | 2021-04-23 | 广东美的白色家电技术创新中心有限公司 | Inverter compensation method and device, electrical equipment and storage medium |
| CN111884229A (en) * | 2020-08-19 | 2020-11-03 | 南方电网科学研究院有限责任公司 | Asynchronous and synchronous control method and system for back-to-back flexible direct current power transmission system |
| CN113067371A (en) * | 2021-03-25 | 2021-07-02 | 哈尔滨工业大学 | Subsynchronous oscillation suppression method for direct-drive permanent magnet wind turbine generator compensated by machine side converter |
| EP4195437A1 (en) * | 2021-12-13 | 2023-06-14 | General Electric Renovables España S.L. | Electrical power system having active harmonic filter |
| US11689017B1 (en) | 2021-12-13 | 2023-06-27 | General Electric Renovables Espana, S.L. | Electrical power system having active harmonic filter |
| CN116154845A (en) * | 2022-12-08 | 2023-05-23 | 中国石油大学(华东) | Control method of H-bridge serial-parallel switching type forced excitation converter based on DAB |
| CN116154845B (en) * | 2022-12-08 | 2023-11-21 | 中国石油大学(华东) | Control method of H-bridge serial-parallel switching type forced excitation converter based on DAB |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109378836A (en) | A kind of control method for coordinating of direct drive permanent magnetic synchronous generator under uneven and harmonic | |
| Hu et al. | Dynamic modeling and improved control of DFIG under distorted grid voltage conditions | |
| Singh et al. | Grid synchronisation with harmonics and reactive power compensation capability of a permanent magnet synchronous generator-based variable speed wind energy conversion system | |
| CN104868497B (en) | A kind of control method and system of the double-fed blower fan low voltage crossing without flux observation | |
| CN107425539B (en) | Enhanced low-voltage ride-through control method of doubly-fed wind turbine generator under asymmetric power grid fault | |
| CN104362668B (en) | The control method of double-fed wind power generator during a kind of Voltage unbalance/harmonic distortion | |
| Mishra et al. | A review of harmonic elimination techniques in grid connected doubly fed induction generator based wind energy system | |
| CN101977006B (en) | Method for controlling double-fed wind driven generator in power grid faults | |
| CN105958534B (en) | A kind of double-fed wind power system asymmetry high voltage fail traversing control method | |
| CN106329571A (en) | Operation control method of DFIG grid side and rotor side PWM converter | |
| CN101505131A (en) | Asymmetric direct power control method for dual feed asynchronous wind power generator | |
| Fathabadi | Control of a DFIG-based wind energy conversion system operating under harmonically distorted unbalanced grid voltage along with nonsinusoidal rotor injection conditions | |
| CN101141111A (en) | Dual-feed asynchronous wind power generator rotor current non-delay control method | |
| CN109066735B (en) | Double-fed wind power generation system under unbalanced grid voltage and control method thereof | |
| CN104865523A (en) | Doubly-fed generator simulation system and method | |
| CN110198050A (en) | DFIG virtual synchronous control method based on the idle Collaborative Control of torque-under a kind of unbalanced power grid | |
| CN104993756B (en) | The failure operation method of double-fed wind power generator rotor magnetic linkage weak magnetic control | |
| CN106410844A (en) | Improved double-fed induction generator low voltage traverse control method | |
| CN104065100B (en) | Double-fed wind turbine converter control device for improving unsymmetrical fault ride-through capacity | |
| Liu et al. | Dynamic stability analysis of the weak grid-connected DFIG-based wind turbines under severe symmetrical faults | |
| CN106385050A (en) | Doubly-fed induction generator low-voltage ride-through control system | |
| Dinesh et al. | Independent operation of DFIG-based WECS using resonant feedback compensators under unbalanced grid voltage conditions | |
| Djeghloud et al. | Sub and super-synchronous wind turbine-doubly fed induction generator system implemented as an active power filter | |
| Yari et al. | Damping Improvement of Inter-Area Oscillations Using Large-Scale Wind Farms | |
| CN110289629A (en) | Based on the DFIG virtual synchronous control method for expanding power under a kind of unbalanced power grid |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |
|
| RJ01 | Rejection of invention patent application after publication |