CN206517328U - Wind generator system - Google Patents
Wind generator system Download PDFInfo
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- CN206517328U CN206517328U CN201621258370.6U CN201621258370U CN206517328U CN 206517328 U CN206517328 U CN 206517328U CN 201621258370 U CN201621258370 U CN 201621258370U CN 206517328 U CN206517328 U CN 206517328U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The utility model is included on a kind of wind generator system, the wind generator system：Wind-driven generator, includes rotor windings and stator winding；Main circuit breaker, is electrically coupled between stator winding and power network；Bimodulus handover module, is electrically coupled with stator winding, wind generator system is performed total power power generation mode when wind speed small one presets wind speed, and doubly-fed generation pattern is performed when wind speed is more than or equal to default wind speed；Translation circuit, is electrically coupled between rotor windings and main circuit breaker；And energy-storage module, it is arranged between main circuit breaker and wind-driven generator, by carrying out the running of charge or discharge, to suppress the event for being unfavorable for power network and wind generator system.
Description
Technical field
This case is related to a kind of wind generator system, and more particularly to one kind can be in total power power generation mode and doubly-fed generation pattern
Switch over, and the running of the charge/discharge for passing through energy-storage module suppresses to be unfavorable for the event of power network and wind generator system
Wind generator system.
Background technology
It is well known that main in current megawatt level wind power generation system include two kinds of wind power generating sets, i.e. total power
Wind power generating set and double-fed wind power generator group.In other words, a kind of current wind power generating set uses doubly-fed generation pattern,
And another wind power generating set uses total power power generation mode.In general, total power wind power generating set is main by full work(
Rate converter and total power generator (e.g., magneto alternator, electric excitation generator, influence generator) composition, it generates electricity
Range of operation is wide, and incision wind speed is low, and generating efficiency is high, and the adaptability to power network is good, however, total power converter need to be to be processed
Power is larger, and then requires high to the stress of switching device, and heavily stressed switching device is a challenge to technique, improves switch
The technique of device, can cause the lifting of price, thus total power wind-driven generator and total power converter price costly.It is double
Feedback wind power generating set is mainly made up of double fed induction generators and double-fed converter, and it is relative to total power wind power generating set
It is cheap, but generating efficiency at low wind speeds is relatively low.In addition, the double-fed generator that double-fed wind power generator group is used is in itself
Loss at the low rotational speed is larger, and electronic device is pressure-resistant in current transformer is limited by generator speed scope so that generate electricity fortune
Line range is narrow.
What is more, the control strategy of current wind generator system is to control (Maximum using maximal power tracing
power point tracking；MPPT), wind-driven generator is made to export electric energy, but such a control with maximum power generation
Change of the strategy but to mains frequency is not responded to, and as wind-powered electricity generation permeability is increasing, causes the inertia of network system to be got over
Come smaller, the fluctuation of mains frequency will become apparent from.Therefore in order to improve this problem, current wind generator system just utilizes wind
Power generator participates in primary frequency modulation and inertia frequency modulation, i.e. by absorb and release wind-driven generator rotor kinetic energy, come
Send or absorb a part of active power, so that frequency modulation is realized, to reach the purpose for improving grid stability.But utilize wind-force
But there are two shortcomings to carry out frequency modulation in generator, one of them shortcoming be due to need reserved wind-driven generator 10%~
15% discharge capability carries out frequency modulation, therefore changes maximum power tracking curve, and sacrifices the generated energy of wind-driven generator,
Further drawback is then that, in frequency modulation, the fluctuation and the low-frequency oscillation of suppression driving-chain of low frequency power can be coupled, and then aggravate to shake
Swing, consequently, it is possible to which the quality of power supply declines, wind power generating set damage is likely to occur when serious.Also have based on only in existing way
Mains frequency is adjusted vertical energy storage device or conventional power plants, and the common disadvantage of these ways is that cost is high, and investment is big.
In view of this, how to develop it is a kind of improve the not enough wind generator system of above-mentioned prior art, actually related skill
The problem of art field is solved required at present.
Utility model content
The purpose of this case is to provide a kind of wind generator system, with solve conventional wind electricity generation system have cost high and
The low shortcoming of efficiency, and solve conventional wind electricity generation system because of the electric energy using wind-driven generator to carry out frequency modulation, and have
The generated energy and the quality of power supply that wind-driven generator is lost be not good and make the shortcomings of wind power generating set is easily damaged.
For up to above-mentioned purpose, one of this case better embodiment to provide a kind of wind generator system, comprising:Wind-power electricity generation
Unit, includes rotor windings and stator winding；Main circuit breaker, is electrically coupled between stator winding and power network；Bimodulus switches
Module, is electrically coupled with stator winding, wind generator system is performed total power power generation mode when wind speed is less than default wind speed,
Wind speed performs doubly-fed generation pattern when being more than or equal to default wind speed；Translation circuit, is electrically coupled with rotor windings and the main open circuit
Between device；And energy-storage module, it is arranged between main circuit breaker and wind-driven generator, by carrying out the running of charge or discharge,
To suppress to be unfavorable for power network and the event of the wind generator system.
Brief description of the drawings
Fig. 1 is the schematic diagram of the wind generator system of the preferred embodiment of this case first.
Fig. 2 is the schematic diagram of the wind generator system of the preferred embodiment of this case second.
Fig. 3 is the schematic diagram of the wind generator system of the preferred embodiment of this case the 3rd.
Fig. 4 is a change case of the wind generator system shown in Fig. 3.
Fig. 5 is another change case of the wind generator system shown in Fig. 4.
Fig. 6 is step flow chart of this case applied to the control method of the wind generator system shown in Fig. 5.
When Fig. 7 is that actual information shown in Fig. 6 is actual electric network frequency, step S2 sub-step in Fig. 6.
Fig. 8 is a kind of structural representation for realizing each step in Fig. 7.
When Fig. 9 is that actual information shown in Fig. 6 is output voltage and the output current of wind-driven generator, step S2 in Fig. 6
Sub-step.
When Figure 10 is that actual information shown in Fig. 6 is actual electric network voltage, Fig. 6 step S2 sub-step.
Figure 11 is the sub-step of the step S3 shown in Fig. 6.
Figure 12 is a kind of structural representation for realizing each step in Figure 11.
Wherein, description of reference numerals is as follows：
1、2、3：Wind generator system
10：Wind power generating set
100：Rotor windings
101：Stator winding
11：Main circuit breaker
12、22、32：Bimodulus handover module
121：Rectifier
13：Translation circuit
130：Machine-side converter
131：First dc bus
132：Grid side converter
133：Pre-charge circuit
14：Energy-storage module
140：Energy storage component
141：Bidirectional DC/DC converter
15：Second dc bus
16：Stator side is switched
18：Path switch
220：Connecting valve
221：Auxiliary converter
30：Control module
300：Frequency modulation control device
301：Energy storage controller
302：Flat volatility controller
303：Peak load shifting controller
304：Fault traversing controller
305：Cell voltage control unit
320：Short switch
9：Power network
S1：Upper electronic switch
S2：Lower electronic switch
P1：Power instruction signal
I1：Given value of current value
S1~S3：The step of control method of wind generator system
S20~S28, S30~S32, S40~S42, S330~S335：Sub-step
f0：Actual electric network frequency
fr：Default mains frequency
Δf0：First error signal
ΔP*：First departure
f2：Second error signal
Kf：Proportionality coefficient
ΔP2：Second departure
ΔP3：3rd departure
ΔP：Total deviation amount
Ubat：Tank voltage
Uf：Default energy storage component voltage
ΔU：Voltage deviation amount
Pw：Power output
Po：Required power
A~Q：Control unit
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical solution of the utility model is carried out clear, complete
Whole description, it is clear that explanation therein and accompanying drawing serve only as purposes of discussion in itself, not for limitation this case.Based on this reality
With the embodiment in new, those of ordinary skill in the art obtained on the premise of creative work is not paid it is all its
His embodiment, belongs to protection domain of the present utility model.
Referring to Fig. 1, its schematic diagram for the wind generator system of the preferred embodiment of this case first.As shown in figure 1, this reality
The wind generator system 1 and the electric coupling of power network 9 of example are applied, and includes wind power generating set 10, main circuit breaker 11, bimodulus handover module
12nd, translation circuit 13 and energy-storage module 14.Wind power generating set 10 includes wind-driven generator, blade and gear-box etc., its apoplexy
Power generator can be a double-fed generator, and wind-driven generator includes a rotor windings 100 and a stator winding 101.It is main disconnected
Road device 11 is electrically coupled between stator winding 101 and power network 9.
Bimodulus handover module 12 is electrically coupled with stator winding 101, to make wind generator system 1 in total power power generation mode
And switched between doubly-fed generation pattern, illustrate further, when wind speed is less than default wind speed, bimodulus handover module 12 makes
Wind generator system 1 switches to total power power generation mode and performed, conversely, when wind speed is more than or equal to default wind speed, bimodulus
Handover module 12 then makes wind generator system 1 switch to doubly-fed generation pattern and perform.Wherein presetting wind speed can be but be not limited to 6
Meter per second.
Translation circuit 13 is electrically coupled between rotor windings 100 and main circuit breaker 11, and it can be two-way translation circuit, use
To change received electric energy, such as electric energy provided by wind power generating set 10, and the electric energy after conversion is supplied to institute
The load needed, such as power network 9.
Energy-storage module 14 is arranged between main circuit breaker 11 and wind power generating set 10, and energy-storage module 14 is by being charged
Or the running of electric discharge suppresses the event for being unfavorable for power network 9 and wind generator system 1, such as mains frequency fluctuation, wind-driven generator
Output-power fluctuation etc..In certain embodiments, energy-storage module 14 and translation circuit 13 actually can be integrated in rack jointly (not
Diagram) in, therefore (example is pre- described as follows for energy-storage module 14 and translation circuit 13 partial circuit that can share in wind generator system 1
Charging circuit), to save the cost of wind generator system 1.
From the foregoing, it will be observed that being only capable of operating on total power power generation mode or doubly-fed generation mould compared to conventional wind electricity generation system
Formula, the wind generator system 1 of this case made by setting bimodulus handover module 12 wind generator system 1 can according to wind speed whether
Less than default wind speed, correspondence switches to total power power generation mode or doubly-fed generation pattern, consequently, it is possible to the wind-power electricity generation of this case
System 1 can perform total power power generation mode, still to have in low wind speeds in the case where cost increase is simultaneously little in low wind speeds
There are preferably generating efficiency, and the scope of lifting generator operation.Further, since the wind generator system 1 of this case can be in low wind speed
Shi Zhihang total power power generation modes, and energy-storage module 14 is directly set in therein, therefore when power network 9 and wind generator system 1
Occur unfavorable event, such as when anomalous variation occurs for the frequency of power network 9, just carry out charge or discharge using energy-storage module 14
Running, to suppress or compensate the event for being unfavorable for power network 9 and wind generator system 1, consequently, it is possible to compared to conventional wind hair
Electric system need to carry out associated adjustment, such as frequency modulation using the electric energy of wind-driven generator, the wind generator system 1 of this case not only without
The generated energy of wind-driven generator must be sacrificed, and because can perform total power power generation mode in low wind speeds, therefore related benefit can carried out
When repaying or adjusting, such as during frequency modulation, the quality of power supply is maintained, and then lift the service life of wind power generating set.
The detailed circuit framework of wind generator system 1 shown in bright Fig. 1 will be put off until some time later below.Referring again to Fig. 1, translation circuit
13 include machine-side converter 130, the first dc bus 131 and grid side converter 132.Machine-side converter 130 is electrically coupled with rotor
Between the dc bus 131 of winding 110 and first.Grid side converter 132 be electrically coupled with machine-side converter 130 and main circuit breaker 11 it
Between, further, grid side converter 132 is electrically coupled between the first dc bus 131 and main circuit breaker 11, therefore net side is converted
Device 132 is actually to share the first dc bus 131 with machine-side converter 130.
In addition, translation circuit 13 also includes pre-charge circuit 133, one end of pre-charge circuit 133 is electrically coupled with main open circuit
Between device 11 and stator winding 101, the other end of pre-charge circuit 133 and the first dc bus 131 and the thermocouple of energy-storage module 14
Connect, pre-charge circuit 133 to the electric capacity and energy-storage module 14 on the first dc bus 131 to enter line precharge, therefore actually
Translation circuit 13 can be used in conjunction with pre-charge circuit 133 with energy-storage module 14, to save the cost of wind generator system 1.
Energy-storage module 14 includes energy storage component 140 and bidirectional DC/DC converter 141.Energy storage component 140 can be but not
It is limited to by super capacitor or may be repeated the battery of charging and constituted.One end of bidirectional DC/DC converter 141 and energy storage
The electric coupling of component 140, the other end of bidirectional DC/DC converter 141 and the electric coupling of the first dc bus 131, bidirectional, dc/
Direct current transducer 141 can be converted to received electric energy electric energy and the output of different voltage levels, to adjust energy storage component
140 refresh operations or electric discharge running, for example, bidirectional DC/DC converter 141 can be provided stator winding 101
Electric energy changed, with to energy storage component 140 carry out refresh operations, bidirectional DC/DC converter 141 also can be by energy storage group
The electric energy produced when discharging running of part 140 is changed, to provide to the first dc bus 131.As shown in Fig. 1, energy storage
One end of module 14 and the electric coupling of one second dc bus 15, the specially other end of bidirectional DC/DC converter 141 can be with
The electric coupling of second dc bus 15, then via the second dc bus 15 with the electric coupling of the first dc bus 131.
In addition, in the present embodiment, wind generator system 1 is also comprising stator side switch 16, the one of stator side switch 16
End is electrically coupled with bimodulus handover module 12, and the other end of stator side switch 16 is electrically coupled with main circuit breaker 11, and stator side is switched
16 disconnect when wind speed is less than default wind speed, and are turned on when wind speed is more than or equal to default wind speed.In addition, stator side switch 16
It can be controlled by corresponding controller (not shown).
Wind generator system 1 is also comprising net side switch 17, and one end of net side switch 17 is electrically coupled with stator side switch 16
Between main circuit breaker 11, the other end and the electric coupling of grid side converter 132 of net side switch 17.
Bimodulus handover module 12 can be then made up of a rectifier 121, and one end of rectifier 121 is electrically coupled with stator winding
101, the other end of rectifier 121 and the electric coupling of the second dc bus 15, rectifier 121 include three bridge arms being connected in parallel,
Each bridge arm includes upper electronic switch S1 and lower electronic switch S2, wherein when wind speed is less than default wind speed, the institute of three bridge arms
There are the lower electronic switch S2 of upper electronic switch S1 or all to turn on together, by the short circuit of stator winding 101, now wind generator system
1 runs on total power power generation mode, and when wind speed is more than or equal to default wind speed, the upper electronic switch S1 of each bridge arm and under
Electronic switch S2 then operates on pulse width modulation (PWM) mode respectively, and now wind generator system 1 just runs on doubly-fed generation
Pattern.Wherein upper electronic switch S1 and lower electronic switch S2 can be controlled by corresponding controller (not shown).
In addition, translation circuit 13 also includes a path switch 18, one end and the bidirectional, dc/direct current of path switch 18 are changed
The other end of device 141 and the other end electric coupling of rectifier 121, the other end of path switch 18 is and the first dc bus 131
Electric coupling, path switch 18 is the switching being turned on or off by the control (not shown) of corresponding controller, wherein in road
When footpath switch 18 is turned on, energy-storage module 14 can carry out the fortune of charge/discharge via the dc bus 131 of path switch 18 and first
Make.
When the wind generator system 1 shown in Fig. 1 operates in double-fed type power generation mode, the electric energy that stator winding 101 is exported
Be directly transferred to power network 9, the electric energy that rotor windings 100 are exported then by machine-side converter 130 and grid side converter 131 change after pass
Transport to power network 9, and energy-storage module 14 is by carrying out the runnings of charge or discharge, and via rectifier 121 or the path of conducting
18 are switched to suppress the event for being unfavorable for power network 9 and wind generator system 1.And when wind generator system 1 operates in total power hair
Power mode, rotor windings 100 export electric energy by machine-side converter 130 and grid side converter 131 change after transmit to power network 9,
The short circuit of stator winding 101, and energy-storage module 14 is by carrying out the runnings of charge or discharge, and via the path switch 18 of conducting
To suppress the event for being unfavorable for power network 9 and wind generator system 1.
Fig. 1 is refer again to, the access point of rectifier 121 is located at the AC line between main circuit breaker 11 and the rich group 101 of stator
Road.More specifically, the access point of rectifier 121 is located at the alternating current circuit between stator side switch 16 and stator winding 101.When whole
Flow device 121 and be in short-circuit condition, now energy-storage module 14 realizes that discharge and recharge is operated via the first dc bus 131.Work as rectifier
121 run on pulse width modulation (PWM) mode, and energy-storage module 14 can realize the running of discharge and recharge via rectifier 121, also may be used
The running of discharge and recharge is realized via the first dc bus 131, therefore the energy-storage module in the present embodiment can carry out flexible configuration.Energy storage
Module 14 can independently participate in frequency modulation, smooth power fluctuation, peak load shifting and fault traversing, effectively suppress to be unfavorable for power network and wind
The stable event of force generating system occurs.When energy-storage module participates in frequency modulation, the low-frequency power fluctuations of frequency modulation are low with suppressing driving-chain
Frequency vibration swings mutual decoupling, will not aggravate low-frequency oscillation.In practical structures, energy storage device is integrated in inside current transformer, forms wind
All-in-one is stored up, and wind storage all-in-one runs on total power power generation mode in low wind speeds, and doubly-fed generation is run in middle high wind speed
Pattern.
Referring to Fig. 2, its schematic diagram for the wind generator system of the preferred embodiment of this case second.As shown in Fig. 2 this reality
Wind generator system 1 shown in the part-structure similar in appearance to Fig. 1 for the wind generator system 2 for applying example, therefore table is only come with identical label
Show similar structure and running.Bimodulus handover module 12 compared to the wind generator system 1 shown in Fig. 1 is by rectifier 121
Constituted, the bimodulus handover module 22 of the wind generator system 2 of the present embodiment is changed to by connecting valve 220 and auxiliary converter
221 are constituted.One end of connecting valve 220 is electrically coupled with stator winding 101, and the other end of connecting valve 220 is electrically coupled with auxiliary
One end of converter 221 is helped, when wind speed is less than default wind speed, connecting valve 220 is by the control (not shown) of corresponding controller
And turn on, now stator side switch 16 disconnects, and now wind generator system 2 runs on total power power generation mode, and big in wind speed
When default wind speed, connecting valve 220 is disconnected, and stator side switch 16 is turned on, and now wind generator system 2 is then run on
Double-fed type power generation mode.The other end of auxiliary converter 221 is electrically coupled with the first dc bus 131, when wind generator system 2 is transported
Row is when doubly-fed generation pattern, and auxiliary converter 221 is failure to actuate, that is, is not involved in the conversion of electric energy, conversely, working as wind generator system
2 when running on total power power generation mode, and auxiliary converter 221 then participates in the conversion of electric energy.
Compared to Fig. 1, the current transformer that the energy-storage module 14 of the present embodiment is arranged between main circuit breaker and generating set is straight
Flow on bus, that is, be coupled to the first dc bus 131 of translation circuit 13.Similar to first embodiment, energy-storage module is arranged at
Inside current transformer, wind storage all-in-one is formed, the device does not change the topological structure of original wind generator system from a structural point
And control structure.Machine-side converter 130 and energy-storage module 14 share the (figure such as grid side converter 132, including wave filter, converter
Not shown in), save cost.Energy storage device independently participates in frequency modulation, and the low-frequency power fluctuations of frequency modulation shake with suppressing driving-chain low frequency
Mutual decoupling is swung, vibration will not be aggravated.Other advantages of the present embodiment and working characteristics are similar with first embodiment, no longer go to live in the household of one's in-laws on getting married herein
State.
Referring to Fig. 3, its schematic diagram for the wind generator system of the preferred embodiment of this case the 3rd.As shown in figure 3, this reality
Wind generator system 2 shown in the part-structure similar in appearance to Fig. 2 for the wind generator system 3 for applying example, therefore in this only with identical label
To represent similar structure and running.Bimodulus handover module 222 compared to the wind generator system 2 shown in Fig. 2 is by connecting
Switch 220 and auxiliary converter 221 are constituted, and the bimodulus handover module 32 of the wind generator system 3 of the present embodiment changes by short circuit
Switch 320 is constituted, and one end of short switch 320 is electrically coupled with stator winding 101, and the other end of short switch 320 is electrically coupled with
Three-phase short circuit point A, wherein when wind speed is less than default wind speed, (not shown) control of controller that short switch 320 correspond to and
Conducting, makes stator winding 101 realize short circuit via three-phase short circuit point A, and now stator side switch 16 disconnects, wind generator system
3 run on total power power generation mode, and when wind speed is more than or equal to default wind speed, short switch 320 disconnects, stator side switch
16 conductings, wind generator system 3 runs on double-fed type power generation mode.The other structures and characteristic of the present embodiment wind generator system
Similar with first and second embodiment, here is omitted.
Certainly, shown in the wind generator system 1 shown in the utility model Fig. 1, the wind generator system 2 shown in Fig. 2 and Fig. 3
Wind generator system 3 also respectively include a control module, to control the bidirectional DC/DC converter 141 of energy-storage module 14
Running, and due in wind generator system 1, wind generator system 2 and wind generator system 3, control energy-storage module 14
Control module makees that flowing mode is all similar, therefore the following control module that only illustrated with Fig. 4, Fig. 5 is applied to the wind shown in Fig. 3
Structure during force generating system 3 is with making flowing mode.
Referring to Fig. 4, it is the change case of the wind generator system shown in Fig. 3.As shown in figure 4, wind generator system 3 is also
Comprising control module 30, the running of the bidirectional DC/DC converter 141 to control energy-storage module 14, and control module 30
Include frequency modulation control device 300 and energy storage controller 301.Frequency modulation control device 300 is preset with default mains frequency, when mains frequency ripple
When dynamic, the actual electric network frequency on the sampling power network 9 of frequency modulation control device 300, frequency modulation control device 300 more using actual electric network frequency and
Default mains frequency carries out computing and processing, and power instruction signal P1 is produced with correspondence.
Energy storage controller 301 and frequency modulation control device 300 and the electric coupling of bidirectional DC/DC converter 141, to receive work(
Rate command signal P1, and correspondence produces given value of current value I1, to control the running of bidirectional DC/DC converter 141, makes double
The electric current of energy storage component 140 is adjusted according to given value of current value to DC-DC converter 141, and then controls energy-storage module 14
Charge/discharge operate come to the frequency of power network 9 change compensate.Energy storage controller 301 gathers the reality of energy storage component 140
Electric current, and be compared with given value of current value I1, the current deviation of generation passes through PI controllers, obtains switching signal control two-way
DC-DC converter 141 adjusts the electric current of energy storage component 140.Certainly, the implementation not limited to this of energy storage controller 301,
It above are only exemplary illustration.
Consequently, it is possible to when unusual fluctuations occur for mains frequency, cause the event for being unfavorable for power network 9 to occur, frequency modulation control device
300 differences that just can be reflected according to the actual frequency on power network 9 and default mains frequency, and according to the frequency modulation set by itself
Strategy produces power instruction signal P1, by the way that energy storage controller 301 can storage can be reflected by exporting according to power instruction signal P1
The given value of current value the I1 how electric current of energy component 140 need to be adjusted, to control the charge/discharge of energy-storage module 14 to operate.
For example, when mains frequency is higher than setpoint frequency, it is unnecessary on the first dc bus to absorb that energy-storage module carries out refresh operations
Energy；When mains frequency is less than setpoint frequency, energy-storage module carries out electric discharge running and conveys energy for the first dc bus.
In addition, referring to Fig. 5, it is another change case of the wind generator system shown in Fig. 4.As shown in figure 5, control mould
Block 30 also comprising flat volatility controller 302, peak load shifting controller 303 and fault traversing (Failure Ride Through,
FRT) controller 304.The fluctuation of wind driven generator output power, can produce disturbance, it is necessary to be smoothed to it to power network.
Flat volatility controller 302 and the electric coupling of energy storage controller 301, and predetermined power is preset with, flat volatility controller 302 is received
The output voltage of wind power generating set 10 and the detection signal of output current can be reflected, with by detecting signal of change wind-power electricity generation
The power output of unit 10, and compare the power output and predetermined power of wind power generating set 10, to be exported according to comparative result
Changed power thermal compensation signal is to energy storage controller 301.Energy storage controller 301 can produce corresponding according to changed power thermal compensation signal
Given value of current value, adjusts the electric current of energy storage component 140 to control bidirectional DC/DC converter 141, passes through energy storage component
140 charge/discharge running, and then the fluctuation of the smooth power output of wind power generating set 10.
Peak load shifting controller 303 then with energy storage controller 14 and the electric coupling of power network 9, to receive cutting from power network 9
Peak load power signal, and correspondence exports charge and discharge electric signal to energy storage controller 301, produces energy storage controller 301 corresponding
Given value of current value come control bidirectional DC/DC converter 141 adjust energy storage component 140 electric current, make energy-storage module 14 in electricity
In the peakload period of net 9, the electric energy of storage is discharged, and within the non-peakload period of power network 9, wind-force sent out
The additional electrical energy that group of motors 10 is provided is stored, consequently, it is possible to which the peakload period electricity shortage of power network 9 can be avoided.
When short trouble occurs for power network, wind-driven generator is needed to carry out fault traversing, now translation circuit can undertake very big
Instantaneous power impact, be protection translation circuit, it is necessary to which power rush is released.Traditional method be using dc chopper and
Exchange crow bar is released power rush, but above two structural stress is larger.The utility model realizes that failure is worn by energy storage device
More.Fault traversing controller 304 and energy storage controller 301 and the electric coupling of power network 9, the actual electric network voltage to detect power network 9,
And the changing value of line voltage is calculated, and correspondence produces protection signal to energy storage controller 301 when changing value exceedes preset value,
Make energy storage controller 301 produce corresponding given value of current value to control bidirectional DC/DC converter 141 to adjust energy storage component
140 electric current.Therefore when the voltage change on power network 9 causes instantaneous energy to impact, utilize the Contrary compensation power network 9 of energy-storage module 14
On voltage change, to realize fault traversing function, protect translation circuit.
In above-described embodiment, when the finite capacity of the energy storage component 140 of energy-storage module 14, energy-storage module will be caused
301 can not meet frequency modulation control device 300, flat volatility controller 302, peak load shifting controller 303 and fault traversing control simultaneously
Adjustment demand required for device 304 processed.Therefore in other embodiments, energy storage controller 301 can more store pre-set commands in advance,
The pre-set commands are to set energy storage controller 301 to handle power instruction signal, the flat volatility control that frequency modulation control device 300 is exported
Charge and discharge electric signal and fault traversing that changed power thermal compensation signal that device 302 processed is exported, peak load shifting controller 303 are exported
The priority for the protection signal that controller 301 is exported, therefore when the receiving power command signal of energy storage controller 301, changed power
When thermal compensation signal, charge and discharge electric signal and protection signal, just can according to pre-set commands from above-mentioned those signal behaviors one or
The signal of multiple priority treatments, and corresponding given value of current value is produced according to the signal of selected priority treatment, make two-way
DC-DC converter 141 adjusts the electric current of energy storage component 140 according to given value of current value, with filling by energy-storage module 14
It is unfavorable for the event of power network 9 and wind generator system 3 described in the running suppression of electricity/electric discharge.
What is more, when energy-storage module 14 need not carry out frequency modulation, power smooth, peak load shifting, during the response such as fault traversing,
If the power output of wind generator system 3 is more than the required power of power network 9, i.e., can when wind generator system 3 has unnecessary electric energy
Voltage stabilizing control is carried out to energy storage component 140 using the unnecessary electric energy of wind generator system 3, properly to utilize wind generator system
3 unnecessary electric energy.Therefore in certain embodiments, as shown in figure 5, energy storage controller 301 can also control list comprising cell voltage
Member 305, is electrically coupled with energy storage component 140, to the tank voltage sampled on energy storage component 140, and wind generator system 3 of sampling
Power output and power network 9 required power, and compare tank voltage and predeterminated voltage, and compare wind generator system 3
The required power of power output and power network 9, and in tank voltage and predeterminated voltage result of the comparison exceed voltage preset range and
When the power output of wind generator system 3 is more than the required power of power network 9, the knot compared according to tank voltage and predeterminated voltage
Fruit produces given value of current value, bidirectional DC/DC converter 141 is adjusted the electricity of energy storage component 140 according to given value of current value
Stream, with the running for the charge/discharge for controlling energy-storage module 14 and realize energy storage component 140 voltage stabilizing control.
It should be noted that work as the progress frequency modulation of energy-storage module 14, and power smooth, peak load shifting, when fault traversing etc. is responded,
Energy-storage travelling wave tube voltage control unit 305 will not carry out voltage stabilizing control, and the tank voltage of energy storage component 140 is only detected in real time.Work as storage
When the tank voltage of energy component 140 is more than rated maximum or less than specified minimum value, stop above-mentioned response, to protect energy storage group
Part 140, prevents energy storage component from occurring overcharge or overdischarge.Wherein rated maximum and specified minimum value, are energy-storage travelling wave tube factory
The parameter that family provides.It can typically be indicated in the nameplate of energy-storage travelling wave tube.
The operation principle and implementation of energy storage controller 301 in Fig. 5 are similar to Fig. 4, and here is omitted.This practicality
New wind generator system at least has advantages below.What wind power generating set, machine-side converter and grid side converter were constituted
Structure can realize the maximal power tracing operation of wind-driven generator according to wind speed, realize the maximum power generation of wind-driven generator.
Energy-storage module 14 can independently participate in frequency modulation, smooth power fluctuation, peak load shifting and fault traversing, effectively suppress to be unfavorable for power network
Occur with the stable event of wind generator system, and cost is low, invests small.When energy-storage module 14 carries out frequency modulation control, frequency modulation
Low-frequency power fluctuations are mutually decoupled with suppressing driving-chain low-frequency oscillation, will not aggravate low-frequency oscillation.In practical structures, energy storage mould
Block 14 is integrated in inside current transformer, forms wind storage all-in-one, and energy-storage module 14 shares preliminary filling electrical circuit, auxiliary with translation circuit 13
Power supply (not shown) and operative sensor (not shown), save cost.And wind storage all-in-one runs on total power in low wind speeds
Power generation mode, increases the generating capacity of low wind speed, doubly-fed generation pattern is run in middle high wind speed.
Referring to Fig. 6, it is step flow chart of this case applied to the control method of the wind generator system shown in Fig. 5.
The control method can be used to control the running of energy-storage module in any of the above-described wind generator system, and the utility model is sent out with wind-force
Illustrated exemplified by electric system 3.As shown in fig. 6, energy storage mould of the control method of the present embodiment to control wind generator system 3
The running of block 14.Step S1, i.e. sampling power network 9 or wind generator system 3 an at least actual information is first carried out, and judgement is
It is no to there is the event for being unfavorable for power network or wind generator system.If step S1 judged result is yes, then, step S2 is performed,
Produce power instruction signal using an at least actual information, and produce according to power instruction signal given value of current value, with according to
The electric current of the energy storage component 140 of energy-storage module 14 is adjusted according to given value of current value, to pass through the charge/discharge of energy-storage module 14
Running suppresses to be unfavorable for the event of power network 9 and wind generator system 3.
It please join and read Fig. 7 and Fig. 8 in the lump, when wherein Fig. 7 is that actual information shown in Fig. 6 is actual electric network frequency, Fig. 6's
Step S2 sub-step.Fig. 8 be a kind of structural representation for realizing each step in Fig. 7 as shown in fig. 7, in the present embodiment, it is real
Border information can be actual electric network frequency, therefore step S2 is also corresponding as follows comprising sub-step：First, sub-step S20 is performed, will
Actual electric network frequency is compared with default mains frequency, to produce the first error signal.Such as control unit A in Fig. 8, actual electric network frequency
Rate f0With default mains frequency frCompare, to produce the first error signal Δ f0Then step S21 is performed, droop control pair is utilized
First error signal carries out computing, to produce the first departure of active power.Such as control unit B in Fig. 8, droop control is utilized
Active power frequency droop characteristic, emulates the frequency modulation characteristic of conventional synchronization generator, the first obtained departure Δ P*To be active
The departure of power gives.Then, step S22 is performed, the departure to active power does closed-loop control, the deviation of active power
The error of amount carries out computing by virtual inertia link, to produce the second error signal.Control unit C virtual inertia in Fig. 8
Link simulates the mechanical property of conventional synchronization generator, i.e., inertia response is carried out to mains frequency, wherein the second obtained error
Signal f2For the departure of the mains frequency recalculated.Then step S23 is performed, the second error signal is integrated fortune
Calculate, and be multiplied with a proportionality coefficient, to produce one second departure.Such as control unit D and E, the second error signal f in Fig. 82Enter
Row integral operation, and in the first Proportional coefficient KfIt is multiplied, to produce one second departure Δ P2.Then step S24 is performed, by the
Two error signals bring a decay (damping) arithmetic expression into, to produce one the 3rd departure.Such as control unit F, second in Fig. 8
Error signal f2By damping the decay computing of link to suppress influence of the frequency fluctuation to power, and produce the 3rd departure Δ
P3.Then, step S25 is performed, i.e., is added the second departure and the 3rd departure, to produce total deviation amount.As controlled in Fig. 8
Unit G, total deviation amount Δ P, the departure of the actual active power as calculated are obtained by add operation.Then perform
Step S26, according to translation circuit 13 the power limiting of grid side converter 132 and the power limiting of energy-storage module 14 and to it is total partially
Residual quantity is adjusted, to produce power instruction signal.Such as control unit H and I in Fig. 8, total deviation amount Δ P is by two amplitude limit rings
Section is adjusted, to produce power instruction signal P1.Then, step S27 is performed, the tank voltage according to energy storage component 140
And power instruction signal is subjected to open loop computing, to produce given value of current value.Such as control unit J in Fig. 8, total deviation amount Δ P is removed
With tank voltage Ubat, to produce given value of current value I1.Finally, execution step S28, the i.e. bidirectional, dc of control energy-storage module 14/
Direct current transducer 141 adjusts the electric current on energy storage component 140 according to given value of current value, makes energy-storage module 14 to the frequency of power network 9
Rate change is compensated, and suppresses to be unfavorable for power network 9 and wind-power electricity generation system i.e. by the running of the charge/discharge of energy-storage module 14
The event of system 3.The electric current and electricity of control unit K in such as Fig. 8, the electric current progress closed-loop control to energy storage component, and energy storage component
Stream set-point I1 is compared, and the deviation of generation is controlled by proportional integration (PI), obtains switching signal.The switching signal
The running of correspondence control DC/DC reversible transducers (i.e. bidirectional DC/DC converter 141), to adjust the electricity of energy-storage travelling wave tube
Stream, the correspondence of energy storage module 14 carries out charge/discharge, to carry out Contrary compensation to the frequency fluctuation of power network 9.
It should be noted that Fig. 8 is only the one of which structural representation for each step for realizing Fig. 7, the utility model is simultaneously
It is not limited.
And in above-described embodiment, the formula of the proportionality coefficient described in step S23 is：
Kf=(E × U)/X
Wherein KfFor proportionality coefficient, E is the induced electromotive force of the synchronous generator of simulation, and U is the synchronous generator of simulation
Output port voltage, X is the excitatory reactance of synchronous generator of emulation.
Referring to Fig. 9, it is actual information shown in Fig. 6 when being output voltage and the output current of wind power generating set,
Fig. 6 step S2 sub-step.As shown in figure 9, in the present embodiment, actual information can be electric for the output of wind power generating set 10
Pressure and output current, therefore step S2 is also corresponding as follows comprising sub-step：First, sub-step S30 is performed, wind-driven generator is calculated
The power output of group 10, and compare power output and predetermined power, with according to comparative result power output command signal.Then,
Sub-step S31 is performed, power instruction signal is subjected to open loop computing according to the tank voltage of the energy storage component 140, to produce
Given value of current value.Finally, sub-step S32 is performed, the bidirectional DC/DC converter 140 of energy-storage module 14 is controlled according to electric current
Set-point and adjust the electric current on energy storage component 140, make the fluctuation of the smooth power output of wind power generating set 10 of energy-storage module 14,
Suppress to be unfavorable for the event of power network 9 and wind generator system 3 i.e. by the running of the charge/discharge of energy-storage module 14.
Referring to Fig. 10, it is actual information shown in Fig. 6 when being actual electric network voltage, Fig. 6 step S2 sub-step.
As shown in Figure 10, in the present embodiment, actual information can be power network 9 actual electric network voltage, therefore step S2 can correspond to include
Sub-step is as follows：First, sub-step S40 is performed, a changing value of actual electric network voltage is calculated, and it is default more than one in changing value
Correspondence produces power instruction signal during value.Then, perform sub-step S41, according to energy storage component 140 tank voltage and by power
Command signal carries out open loop computing, to produce given value of current value.Finally, sub-step S42 is performed, the two-way of energy-storage module 14 is controlled
DC-DC converter 141 adjusts the electric current on energy storage component 140 according to given value of current value, energy-storage module 14 is suppressed real
Power rush caused by the amplitude change of border line voltage, the running i.e. by the charge/discharge of energy-storage module 14 suppresses
It is unfavorable for the event of power network 9 and wind generator system 3.
Referring again to Fig. 6.As shown in fig. 6, in some embodiments, control method also includes step S3, when step S1's
Judged result is no, that is, does not have the event for being unfavorable for power network and wind generator system, performs step S3.Wherein step S3 is
The running of bidirectional DC/DC converter 141 is optionally controlled according to the tank voltage of energy storage component 140, is made two-way straight
The electric energy that stream/direct current transducer 141 is exported using wind generator system 3 carries out voltage stabilizing control to energy storage component 140.
Figure 11 is referred to, it is the sub-step of the step S3 shown in Fig. 6.Also referring to Figure 12, it is to realize in Figure 11
A kind of structural representation of each step.As shown in figure 11, the step S3 shown in Fig. 6 more can be as follows comprising sub-step：First, perform
Sub-step S330, tank voltage of sampling.Such as control unit L in Figure 12, the tank voltage U for energy storage component of samplingbat.Then, perform
Sub-step S331, tank voltage and predeterminated voltage are compared, to produce voltage deviation amount.Such as control module M in Figure 12, storage
Can voltage UbatWith default energy storage component voltage UfIt is compared, obtains voltage deviation amount Δ U.Then, sub-step S332 is performed,
Judge whether voltage deviation amount exceedes predetermined voltage range.As control unit N in Figure 12, voltage deviation amount Δ U pass through a dead band
Link, when Δ U exceedes predetermined voltage range, performs sub-step S333.It should be noted that sub-step S333 also can be in step
Performed before S330, the utility model is not limited.Step S333, judges whether the power output of wind generator system is more than
The required power of power network 9.Such as control unit O in Figure 12, compare the power output P of wind generator systemwWith the required work(of power network 9
Rate Po, work as Pw>PoWhen, perform step S334.Step S334, given value of current value is calculated by voltage deviation amount proportion of utilization integrating meter.
Such as control unit P in Figure 12, according to voltage deviation amount Δ U, proportion of utilization integral element calculates given value of current value I1.Finally hold
Row sub-step S335, the bidirectional DC/DC converter 141 of control energy-storage module 14 is adjusted according to the given value of current value after adjustment
The electric current of whole energy storage component 140, to carry out voltage stabilizing control to energy storage component 140.For example, energy storage component is battery, pass through voltage stabilizing
Control, can make energy storage component 140 be maintained at optimal cell voltage float duty point.Control unit Q in Figure 12 corresponds to step
Rapid S334, and control unit Q in Figure 12 is similar to the control unit K in Fig. 8, here is omitted.
It should be noted that Figure 12 is only the one of which structural representation for each step for realizing Figure 11, the utility model
It is not limited to this.
In addition, when sub-step S332 judged result for whether when, then re-execute step S331.And when step S333's
When judged result is no, step S331 can be re-executed.
In summary, this case provides a kind of wind generator system, and wherein the wind generator system of this case is by setting bimodulus
To make, wind generator system can whether less than default wind speed, correspondence switches to total power power generation mode to handover module according to wind speed
Or doubly-fed generation pattern, consequently, it is possible to which not only cost increases and little the wind generator system of this case, it can be performed in low wind speeds
Total power power generation mode, therefore with preferably generating efficiency, and lift the scope of generator operation.Further, since the wind-force of this case
Electricity generation system directly sets energy-storage module in therein, when power network and the unfavorable event of wind generator system generation, to utilize
Energy-storage module carries out the running of charge or discharge, to suppress or compensate the event for being unfavorable for power network and wind generator system, therefore originally
The wind generator system of case need not only sacrifice the generated energy of wind-driven generator, can more maintain the quality of power supply, and then lift wind-force
The service life of generating set.When being unfavorable for the event of power network or wind generator system without suppressing or compensating, using wind
The excess energy of force generating system carries out voltage stabilizing control to energy storage component, improves the reliability and stability of energy storage component.
The description of specific embodiment is these are only, it is all in spirit of the present utility model not to limit the utility model
Within principle, any modification, equivalent substitution and improvements done etc. should be included within protection domain of the present utility model.
Claims (14)
1. a kind of wind generator system, comprising：
One wind power generating set, includes a rotor windings and a stator winding；
One main circuit breaker, is electrically coupled between the stator winding and a power network；
Double-mold handover module, is electrically coupled with the stator winding, makes the wind generator system when wind speed is less than a default wind speed
A total power power generation mode is performed, a double-fed power generation mode is performed when wind speed is more than or equal to the default wind speed；
One translation circuit, is electrically coupled between the rotor windings and the main circuit breaker；And
One energy-storage module, is arranged between the main circuit breaker and the wind power generating set, by carrying out charge or discharge running, with
Suppress one and be unfavorable for the power network and the event of the wind generator system.
2. wind generator system as claimed in claim 1, the wherein translation circuit are included：
One machine-side converter, is electrically coupled with the rotor windings；
One first dc bus；
And a grid side converter, be electrically coupled between the machine-side converter and the main circuit breaker, and the machine-side converter with should
Grid side converter shares first dc bus.
3. wind generator system as claimed in claim 2, the wherein energy-storage module are also included：
One energy storage component；
One bidirectional DC/DC converter, one end of the bidirectional DC/DC converter and the energy storage component electric coupling, this pair
To the other end and the first dc bus electric coupling of DC-DC converter.
4. wind generator system as claimed in claim 2, the wherein translation circuit also include a pre-charge circuit, the precharge
One end of circuit is electrically coupled between the main circuit breaker and the stator winding, the other end of the pre-charge circuit and first direct current
Bus and the energy-storage module electric coupling, the pre-charge circuit is to the electric capacity and the energy-storage module on first dc bus
Enter line precharge.
5. wind generator system as claimed in claim 3, the wherein wind generator system are switched comprising a stator side, the stator
One end of side switch is electrically coupled with the bimodulus handover module, and the other end of stator side switch is electrically coupled with the main circuit breaker, and
The stator side open relation disconnects when wind speed is less than the default wind speed, and is turned on when wind speed is more than or equal to the default wind speed.
, should 6. wind generator system as claimed in claim 5, wherein the bimodulus handover module are made up of a short switch
One end of short switch is electrically coupled with the stator winding, the other end of the short switch and a three-phase short circuit point electric coupling, wherein
When wind speed is less than the default wind speed, short switch conducting makes the stator winding realize short circuit via the three-phase short circuit point,
The wind generator system runs on the total power power generation mode, and when wind speed is more than or equal to the default wind speed, the short circuit is opened
Shut-off is opened, and the wind generator system runs on the doubly-fed generation pattern.
7. the wind generator system as described in claim 5, wherein the bimodulus handover module are auxiliary by a connecting valve and one
Converter is helped to constitute, one end of the connecting valve is electrically coupled with the stator winding, and the other end of the connecting valve is electrically coupled with this
One end of auxiliary converter, the other end of the auxiliary converter is to be electrically coupled with first dc bus, wherein being less than in wind speed
During the default wind speed, connecting valve system conducting, the wind generator system runs on the total power power generation mode, is more than in wind speed
Or during equal to the default wind speed, the connecting valve disconnects, and the wind generator system runs on the doubly-fed generation pattern.
8. one end of wind generator system as claimed in claim 5, the wherein energy-storage module and one second dc bus thermocouple
Connect.
9. wind generator system as claimed in claim 8, wherein the bimodulus handover module are made up of a rectifier, the rectification
One end of device is electrically coupled with the stator winding, the other end of the rectifier and the second dc bus electric coupling, the rectifier bag
Containing three bridge arms, each bridge arm electronic switch comprising electronic switch on one and once, wherein being less than the default wind speed in wind speed
When, electronic switch or the lower electronic switch are turned on together on this of three bridge arms, by the stator winding inter-turn short circuit fault, wind-force hair
Electric system runs on total power power generation mode, when wind speed is more than or equal to the default wind speed, electronics on this of each bridge arm
Switch and the lower electronic cutting relation operate on pulse width modulation mode, and the wind generator system runs on the doubly-fed generation mould
Formula.
10. wind generator system as claimed in claim 9, the wherein translation circuit also include a path switch, the path is opened
One end of pass and the other end of the bidirectional DC/DC converter and the other end electric coupling of the rectifier, the path is opened
The other end of pass and the first dc bus electric coupling, the switching that the path switch is turned on or off, wherein in the path
During switch conduction, the energy-storage module carries out the running of charge/discharge via the path switch and first dc bus.
11. wind generator system as claimed in claim 3, the wind generator system also includes a control module, the control mould
Block is included：
One frequency modulation control device, to the actual electric network frequency on the power network of sampling, and it is pre- using the actual electric network frequency and one
If mains frequency carries out computing and processing, a power instruction signal is produced with correspondence；
And an energy storage controller, and the frequency modulation control device and the bidirectional DC/DC converter electric coupling, to receive this
Power instruction signal simultaneously produces a given value of current value and controls the running of the bidirectional DC/DC converter, make the bidirectional, dc/
Direct current transducer adjusts the electric current of the energy storage component according to the given value of current value, to pass through the charge/discharge of the energy-storage module
Frequency change to the power network is compensated.
12. wind generator system as claimed in claim 11, the wherein control module are also included：
One flat volatility controller, and the energy storage controller electric coupling, to receive the wind-driven generator an output voltage and
One output current, to calculate a power output of the wind-driven generator, and compares the power output and a predetermined power, with foundation
Comparative result exports a changed power thermal compensation signal to the energy storage controller；
One peak load shifting controller, with the energy storage controller and the power network electric coupling, is filled out to receive from one of power network peak clipping
Paddy power signal, and correspondence exports a charge and discharge electric signal to the energy storage controller；
And a fault traversing controller, and the energy storage controller and the power network electric coupling, to detect an actual electric network voltage,
To calculate a changing value of the actual electric network voltage, and correspondence produces a protection signal extremely when the changing value is more than a preset value
The energy storage controller.
13. wind generator system as claimed in claim 12, wherein the energy storage controller are according to set by a pre-set commands
Priority and from the power instruction signal, the changed power thermal compensation signal, the charge and discharge electric signal and the protection signal select
The signal of one or more priority treatments, and produce the corresponding given value of current according to the signal of selected priority treatment
Value, makes the bidirectional DC/DC converter adjust the electric current of the energy storage component according to the given value of current value, to pass through the energy storage
The running of the charge/discharge of module is unfavorable for the power network and the event of the wind generator system described in suppressing.
14. claim 11-13 items it is any as described in wind generator system, wherein the energy storage controller also include an energy storage
Component voltage control unit, is electrically coupled with the energy storage component, to the tank voltage on the energy storage component of sampling, when not sending out
When raw this is unfavorable for the event of the power network and the wind generator system, the energy storage component voltage control unit receives the wind-power electricity generation
Power needed for one power output of system and the one of the power network, to compare the tank voltage and a predeterminated voltage, and compares this
Power output and the required power, and in the tank voltage and the predeterminated voltage result of the comparison more than a predetermined voltage range and
When the power output is more than the required power, the given value of current is produced according to the tank voltage and the predeterminated voltage result of the comparison
Value, makes the bidirectional DC/DC converter adjust the electric current of the energy storage component according to the given value of current value, to control the energy storage
The running of the charge/discharge of module and the voltage stabilizing control for realizing the energy storage component.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258370.6U CN206517328U (en) | 2016-11-23 | 2016-11-23 | Wind generator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258370.6U CN206517328U (en) | 2016-11-23 | 2016-11-23 | Wind generator system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888118A (en) * | 2017-12-23 | 2018-04-06 | 中国船舶重工集团公司第七研究所 | Suitable for the asynchronous generator rectifier power system of short-circuit protection |
| CN108092577A (en) * | 2016-11-23 | 2018-05-29 | 台达电子工业股份有限公司 | Wind generator system and its applicable control method |
| CN109450314A (en) * | 2018-12-12 | 2019-03-08 | 许昌学院 | A kind of doubly-fed generation machine control system |
-
2016
- 2016-11-23 CN CN201621258370.6U patent/CN206517328U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092577A (en) * | 2016-11-23 | 2018-05-29 | 台达电子工业股份有限公司 | Wind generator system and its applicable control method |
| CN108092577B (en) * | 2016-11-23 | 2022-04-08 | 台达电子工业股份有限公司 | Wind power generation system and control method suitable for same |
| CN107888118A (en) * | 2017-12-23 | 2018-04-06 | 中国船舶重工集团公司第七研究所 | Suitable for the asynchronous generator rectifier power system of short-circuit protection |
| CN107888118B (en) * | 2017-12-23 | 2023-08-25 | 中国船舶集团有限公司第七一一研究所 | Rectifying power supply system of asynchronous generator suitable for short-circuit protection |
| CN109450314A (en) * | 2018-12-12 | 2019-03-08 | 许昌学院 | A kind of doubly-fed generation machine control system |
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