CN206211658U - For the emergency electric system of wind-driven generator unit - Google Patents
For the emergency electric system of wind-driven generator unit Download PDFInfo
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- CN206211658U CN206211658U CN201621321728.5U CN201621321728U CN206211658U CN 206211658 U CN206211658 U CN 206211658U CN 201621321728 U CN201621321728 U CN 201621321728U CN 206211658 U CN206211658 U CN 206211658U
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Abstract
The utility model provides a kind of emergency electric system for wind-driven generator unit, including power supply unit, rectification unit, converter unit, inversion unit and energy-storage units, the input of the rectification unit is connected with the output end of power supply unit, and the electric energy rectification for power supply unit to be exported is direct current energy；The input of the converter unit is connected with the output end of rectification unit, for carrying out voltage stabilizing to direct current energy；The input of the energy-storage units is connected with the output end of the converter unit, the output end of the energy-storage units is connected by inversion unit with the input of the control system of wind-driven generator, the energy-storage units are used to store through the direct current energy after voltage stabilizing and/or for control system is powered, and inversion unit is used for the direct current energy inversion for exporting energy-storage units for threephase AC electric energy and then for control system is powered.
Description
Technical field
The utility model belongs to technical field of wind power generation, relates more specifically to a kind of for the standby of wind-driven generator unit
Use electric power system.
Background technology
In wind power generating set process of construction, often due to the factor such as construction period and ambient influnence, power grid construction,
When causing wind power generating set lifting construction not possess grid-connected power on condition after finishing, power network is still unable to power transmission, therefore unit
In long-term electroless state, even up to a year as long as having, because environmental control system in unit cannot work without electricity in this period
Make, for the part of environment sensitive can be made moist by burn into wait infringement, so as to cause device damage or fault rate residence height
Under not.This is even more important for offshore wind farm, ageing equipment in unit is caused when serious, is even scrapped.Additionally, due to such as sea
After the completion of initial stage Wind turbines under the severe rugged environments such as fan are built and lifted, unit runs without electriferous state and surveys
Examination, it is impossible to determine whether become the various parts such as electrical equipment and generator, the blade structures such as oar, master control system in unit
Meet installation and operation requirement, therefore the live testing at initial stage is also very important, it usually needs extra diesel-driven generator
Equipment provides extra power supply, realizes unit regulation, but existing wind powered generator system can also not make wind power generating set
Standby self-powered emergency electric system under without grid conditions.
The content of the invention
This application provides a kind of emergency electric system for wind-driven generator unit.
A kind of emergency electric system for wind-driven generator unit is provided according to embodiment of the present utility model, including
Power supply unit, rectification unit, converter unit, inversion unit and energy-storage units, input and the power supply unit of the rectification unit
Output end is connected, and the electric energy rectification for power supply unit to be exported is direct current energy；The input of the converter unit and rectification
The output end of unit is connected, for carrying out voltage stabilizing to direct current energy；The input of the energy-storage units is defeated with the converter unit
Go out end to be connected, the output end of the energy-storage units is connected by inversion unit with the input of the control system of wind-driven generator
Connect, the energy-storage units are used to store through the direct current energy after voltage stabilizing and/or for control system is powered, inversion unit is used for energy storage
The direct current energy inversion of unit output is for threephase AC electric energy and then for control system is powered.
In one embodiment, the power supply unit includes that wind-driven generator power supply unit, wind-driven generator are powered
At least one in power network power supply unit or photovoltaic generation unit.
In one embodiment, the rectification unit is not control type rectification unit.
In one embodiment, the converter unit is controllable type converter unit.
In one embodiment, the inversion unit is controllable type inversion unit.
In one embodiment, the system also includes supply transformer, and power network unit is by supply transformer to energy storage list
Unit is powered.
In one embodiment, the system also includes Alarm Unit, and Alarm Unit is connected with energy-storage units, for monitoring
The electric energy of energy-storage units, alarm signal is sent when the electric energy of energy-storage units is less than predetermined value.
In one embodiment, the system also includes becoming oar trigger element, becomes oar trigger element and is connected with energy-storage units,
Electric energy for monitoring energy-storage units exports situation, when energy-storage units carry out sending change oar trigger signal when electric energy is exported.
In one embodiment, the system also cuts out trigger element including load, and load cuts out trigger element and energy storage list
Unit is connected, the electric energy for monitoring energy-storage units, and sending load when the electric energy of energy-storage units is less than predetermined value cuts out triggering
Signal.
In one embodiment, Alarm Unit is remotely connected with energy-storage units.
According to the emergency electric system for wind-driven generator unit of the utility model embodiment, can be by energy storage list
Unit is powered for the control system of wind-driven generator, and can be sent out wind power generating set by the conversion of a series of electric energy
The energy that motor rotates generation is transmitted to energy-storage units, so as to realize the continual energy supplement to emergency electric system.
Brief description of the drawings
Feature and advantage of the present utility model can be more clearly understood from by reference to accompanying drawing, accompanying drawing be it is schematical without
It is interpreted as carrying out any limitation to the utility model, in the accompanying drawings：
Fig. 1 shows a kind of application scenario diagram of the emergency electric system for wind-driven generator unit according to embodiment；
Fig. 2 shows a kind of structured flowchart of the emergency electric system for wind-driven generator unit according to embodiment；
What Fig. 3 showed a kind of emergency electric system for wind-driven generator unit of embodiment is applied to wind-driven generator
Structural representation；
What Fig. 4 showed the emergency electric system for wind-driven generator unit of another embodiment is applied to wind-power electricity generation
The structural representation of machine.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is described to the technical scheme in the utility model embodiment.
The feature and exemplary embodiment of various aspects of the present utility model is described more fully below.Retouched in detail in following
In stating, it is proposed that many details, to provide to comprehensive understanding of the present utility model.But, for people in the art
It will be apparent that the utility model can be implemented in the case of some details in not needing these details for member.
Description to embodiment below is used for the purpose of being provided by showing example of the present utility model to of the present utility model more preferable
Understanding.The utility model is never limited to any concrete configuration set forth below, but is not departing from essence of the present utility model
Any modification, replacement and the improvement of element and part are covered on the premise of god.In the the accompanying drawings and the following description, it is not shown
Known structure and technology, to avoid that unnecessary obscuring is caused to the utility model.
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can be with various shapes
Formula is implemented, and is not understood as limited to implementation method set forth herein；Conversely, thesing embodiments are provided so that this practicality is new
The design of example embodiment more comprehensively and completely, and is comprehensively conveyed to those skilled in the art by type.In figure, in order to
Clearly, may be exaggerated the thickness of region and layer.Identical reference represents same or similar structure in figure, thus will
Omit their detailed description.
Additionally, described feature, structure or characteristic can be combined in one or more implementations in any suitable manner
In example.In the following description, there is provided many details fully understand so as to be given to embodiment of the present utility model.So
And, it will be appreciated by persons skilled in the art that the technical solution of the utility model can be put into practice without in the specific detail
It is one or more, or can be using other methods, constituent element, material etc..In other cases, it is not shown in detail or describes public affairs
Know structure, material or operation to avoid obscuring major technique intention of the present utility model it should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Below in conjunction with the accompanying drawings, the standby confession for wind-driven generator unit according to the utility model embodiment is described in detail
Electric system.
Fig. 1 shows a kind of application scenario diagram of the emergency electric system for wind-driven generator unit according to embodiment.
As shown in figure 1, the application scenarios in the emergency electric system for wind-driven generator unit include wind-driven generator 110, standby
With electric power system 120 and wind power generator control system 130, emergency electric system 120 here can be wind-driven generator control
System processed 130 is powered, and in one example, the emergency electric system 120 can also receive the energy from wind-driven generator 110
Amount, so as to realize the continual energy supplement to emergency electric system 120.
Fig. 2 shows a kind of structured flowchart of the emergency electric system for wind-driven generator unit according to embodiment.Such as
Shown in Fig. 2, this is used for the emergency electric system 200 of wind-driven generator unit, including power supply unit 210, rectification unit 220, change
Change unit 230, inversion unit 250 and energy-storage units 240, the input of the rectification unit 220 and the output end of power supply unit 210
It is connected, the electric energy rectification for power supply unit 210 to be exported is direct current energy；The power supply unit 210 can be wind-power electricity generation
The combination of one kind, or above-mentioned multiple power supply units in mechanical, electrical net unit or photovoltaic generation unit；Photovoltaic hair therein
Electric unit is appreciated that luminous energy is directly translated into a kind of of electric energy using the photovoltaic effect of interface generates electricity
Unit, for example, can form the solar module of large area, then match somebody with somebody by solar cell by carrying out packaging protection after series connection
The parts such as power controller that close are formed photovoltaic generation unit.
In one example, if be powered using the power network unit in above-mentioned power supply unit 210, can be by supplying
Piezoelectric transformer is powered to energy-storage units.In one example, rectification unit here can be used and not control type rectification unit,
Type rectification unit is not for example controlled based on diode, with simple structure, energy-conservation, efficient advantage.
The input of the converter unit 230 is connected with the output end of rectification unit 220, for being carried out surely to direct current energy
Pressure；In one example, the converter unit 230 can use controllable type converter unit.The input of the energy-storage units 240 with should
The output end of converter unit 230 is connected, and the output end of the energy-storage units 240 is by inversion unit 230 and wind-driven generator
The input of control system is connected, and the energy-storage units 240 are used to store through the direct current energy after voltage stabilizing and/or are control system
Power supply.
The direct current energy inversion that inversion unit 250 is used to export energy-storage units 240 is threephase AC electric energy and then is control
System power supply processed.In one example, the inversion unit 250 can use controllable type inversion unit.The emergency electric system is not
Can be only powered by the control system that energy-storage units 240 are wind-driven generator, and can be by a series of electric energy
Change and transmit to energy-storage units 240 energy that generator of wind generating set rotates generation, it is continual right so as to realize
The energy supplement of emergency electric system.
In one embodiment, the system can also include Alarm Unit, and Alarm Unit is connected with energy-storage units 240,
Electric energy for monitoring energy-storage units 240, alarm signal is sent when the electric energy of energy-storage units 240 is less than predetermined value.At one
In embodiment, the system can also include becoming oar trigger element, become oar trigger element and be connected with energy-storage units, for monitoring this
The electric energy output situation of energy-storage units 240, when energy-storage units 240 carry out electric energy to be exported, the change oar trigger element sends change oar
Trigger signal.It should be noted that when energy-storage units 240 carry out electric energy output, also just illustrating energy-storage units 240 to wind-force
Generator control system is powered, and this time-varying oar trigger element sends change oar trigger signal to control system, so that wind-force is sent out
Electric machine control system can be based on the change propeller angle that change oar trigger signal control blade pitch device adjusts blade, so that wind-force is sent out
Motor rotation produces electric energy, so that automatically for the energy-storage units 240 are powered.In one example, the system can also include negative
Load cuts out trigger element, and load cuts out trigger element and is connected with energy-storage units, and the electric energy for monitoring energy-storage units works as energy storage
The electric energy of unit sends load and cuts out trigger signal when being less than predetermined value, can be mitigated by cutting out unnecessary power supply load
Power supply consumption, to maintain longer power-on time to require.
In one embodiment, the Alarm Unit is remotely connected with energy-storage units 240.For example the Alarm Unit can pass through
The energy data of wireless communication receiver energy-storage units 240, communication can be by using bluetooth, by energy-storage units 240
Energy data be sent to Alarm Unit in real time, or send messages to Alarm Unit when energy data is less than predetermined value and accused
It is alert, in one example, equally similar communication efficiency can be played using wireless communication units such as infrared, wireless networks.
What Fig. 3 showed a kind of emergency electric system for wind-driven generator unit of embodiment is applied to wind-driven generator
Structural representation；As shown in figure 3, by taking permanent magnet direct-driving aerogenerator group as an example, itself includes wind-power electricity generation in generating set
The basic elements of character such as machine 310, current transformer, grid-connected switch, case change, supply transformer are constituted.Also it is used for wind-force hair including this in figure 3
The emergency electric system of motor unit, the emergency electric system can include rectification unit 301, for example, do not control the poles of type AC/DC bis-
Pipe rectification unit；Converter unit 302, such as controllable type DC/DC converter units；Inversion unit 303, such as controllable type DC/AC is inverse
Become unit；Energy-storage units 304, for example can be using modes such as Power Flow, inductor energy storage, capacitor energy storage；And switch
K1, K2, K3 and K4, switch K3 therein are arranged between the current transformer inside wind-driven generator 310 and wind-driven generator unit,
Switch K1 is arranged between wind-driven generator 310 and rectification unit 301, and switch K2 is arranged on inversion unit 303 and wind-power electricity generation
Between machine control system 313, switch K4 is arranged between the current transformer inside wind-driven generator unit and case change.
In one embodiment, power supply unit can be wind-driven generator 310.Wind power generator control system 313 can be with
The change propeller angle of blade of wind-driven generator is controlled by controlling blade pitch device so that wind-driven generator 310 is rotated so as to produce electricity
Can, by close K1 switch (now K3 is not closed) cause energy by after rectification unit 301 and converter unit 302 give energy storage list
Unit 304 charges, or the voltage source from after the output conversion of inversion unit 303, then switchs (now K4 is not closed) by closing K2
Export to wind power generator control system 313, so as to guarantee to meet the need of the uninterrupted power supply of wind power generator control system 313
Ask.
In one example, the energy-storage units 304 of the emergency electric system can in a pre-installation complete charged state,
With Full Charge Capacity, rectification unit 301 and converter unit 302 are connected the input for combining and accessing energy-storage units 304, by energy storage list
The output end of unit 304 accesses wind power generator control system 313 by inversion unit 303 through switching K2.
In one example, the emergency electric system can include rectification unit 305, rectification unit 307, converter unit
306th, converter unit 308 and photovoltaic generation unit 311 and power network unit 312.Photovoltaic generation unit 311, rectification unit 305,
Converter unit 306 is sequentially connected, and is connected to the input of energy-storage units 304, and photovoltaic generation unit 311 is the He of energy-storage units 304
The control system of wind-driven generator is powered.Power network unit, rectification unit 307, converter unit 308 are sequentially connected, and are connected to energy storage
The input of unit 304, power network unit 312 is powered for the control system of energy-storage units 304 and wind-driven generator.
More than power supply mode use can also individually can be used in combination, when being powered using power network unit 312, can be with
Using the power supply carried out by the electric energy via supply transformer 309 to energy-storage units 304.
When the emergency electric system runs first or cannot be charged to energy-storage units 304 by power supply unit, then lead to
Cross inversion unit 303 to export the electric energy of energy-storage units 304, the power supply is communication power supply, be wind-driven generator control system
System 313 is powered, and wind power generator control system 313 here can include pitch-controlled system, converter system, master control system, cabin
Dispatch control system equipment.Now because no electric energy is input to energy-storage units 304, therefore energy-storage units 304 are completely in electric discharge
State.
After wind power generator control system 313 is powered through energy-storage travelling wave tube, blower fan control system can be started by software
Control mode causes that air-blower control enters into stand-by power supply pattern, in such a mode, can carry out the static state of wind power generating set
Debugging without grid conditions；On the other hand system can also controlled to wind-driven generator by the energy-storage units of emergency electric system
After system is powered, control system can control blade pitch device to adjust the change propeller angle of blade, so that generator rotation is produced
Electric energy, by close K1 switch (now K3 is not closed) by energy by after rectification unit 301 and converter unit 302 give energy storage list
Unit 304 charges.
In one example, the emergency electric system gives a warning when the energy monitoring of energy-storage units 304 is less than certain value
Message, it is at least one to energy-storage units 304 in wind-driven generator 310, power network unit 312 or photovoltaic generation unit 311, so that
Meet uninterrupted power supply；Power supply consumption can also be mitigated by cutting out unnecessary power supply load simultaneously, to remain longer
Power-on time requirement.
What Fig. 4 showed the emergency electric system for wind-driven generator unit of another embodiment is applied to wind-power electricity generation
The structural representation of machine.As shown in figure 4, same by taking permanent magnet direct-driving aerogenerator group as an example, itself includes wind in generating set
The basic elements of character such as power generator G, current transformer, grid-connected switch, case change, supply transformer are constituted.Also it is used for wind including this in fig. 4
The emergency electric system of power generator unit, the emergency electric system can include by the current transformer of itself in generating set
Controllable type rectification unit is engineered into the available rectification unit 401 of the emergency electric system, for example, do not control type AC/DC diodes whole
Stream unit；Converter unit 402, such as controllable type DC/DC converter units；Inversion unit 403, such as controllable type DC/AC inversions list
Unit；Energy-storage units 404, for example can be using modes such as Power Flow, inductor energy storage, capacitor energy storage；And switch K1,
K2, K3 and K4, switch K3 therein are arranged between the current transformer inside wind-driven generator 410 and wind-driven generator unit, are opened
Close K1 to be arranged between converter unit 402 and rectification unit 401, switch K2 is arranged on inversion unit 403 and wind-driven generator control
Between system processed 413, switch K4 is arranged between the current transformer inside wind-driven generator unit and case change, and said structure equally may be used
To realize the stand-by power supply to wind power generator control system 413, while can be by wind-driven generator 410, power network unit 412
Or at least one in photovoltaic generation unit 411 charges to energy-storage units 404, so as to meet uninterrupted power supply.With the reality in Fig. 3
Apply example to be similar to, when being powered using power network, can use is carried out to energy-storage units by the electric energy via supply transformer 409
404 power supply.
It is apparent to those skilled in the art that, for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.
In several embodiments provided herein, it should be understood that disclosed system, apparatus and method, can be with
Realize by another way.For example, device embodiment described above is only schematical, for example, the unit
Divide, only a kind of division of logic function there can be other dividing mode when actually realizing, for example multiple units or component
Can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.In addition, shown or beg for
The coupling each other of opinion or direct-coupling or communication connection can be the INDIRECT COUPLINGs by some ports, device or unit
Or communication connection, or electricity, machinery or other forms connections.
The unit that is illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part for showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be according to the actual needs selected to realize the utility model embodiment
The purpose of scheme.
In addition, during each functional unit in the utility model each embodiment can be integrated in a processing unit,
Can be that unit is individually physically present, or two or more units are integrated in a unit.Above-mentioned collection
Into unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in various in the technical scope that the utility model is disclosed
Equivalent modification or replacement, these modifications or replacement should all be covered within protection domain of the present utility model.Therefore, this practicality
New protection domain should be defined by scope of the claims.
Claims (10)
1. a kind of emergency electric system for wind-driven generator unit, it is characterised in that：Including power supply unit, rectification unit,
Converter unit, inversion unit and energy-storage units,
The input of the rectification unit is connected with the output end of said supply unit, for the electric energy for exporting power supply unit
Rectification is direct current energy；
The input of the converter unit is connected with the output end of the rectification unit, for being carried out surely to the direct current energy
Pressure；
The input of the energy-storage units is connected with the output end of the converter unit, and the output end of the energy-storage units passes through
Inversion unit is connected with the input of the control system of the wind-driven generator, and the energy-storage units are used to store after voltage stabilizing
Direct current energy and/or for the control system is powered, the inversion unit be used for by the energy-storage units export direct current
Energy inversion is for threephase AC electric energy and then for the control system is powered.
2. the emergency electric system of wind-driven generator unit is used for as claimed in claim 1, it is characterised in that：The power supply is single
Unit includes at least one in wind-driven generator, power network unit or photovoltaic generation unit.
3. the emergency electric system of wind-driven generator unit is used for as claimed in claim 1, it is characterised in that：The rectification list
Unit is not control type rectification unit.
4. the emergency electric system of wind-driven generator unit is used for as claimed in claim 1, it is characterised in that：The conversion is single
Unit is controllable type converter unit.
5. the emergency electric system for wind-driven generator unit as described in claim 1 or 3 or 4, it is characterised in that：It is described
Inversion unit is controllable type inversion unit.
6. the emergency electric system of wind-driven generator unit is used for as claimed in claim 2, it is characterised in that：Also include power supply
Transformer, the power network unit is powered by the supply transformer to the energy-storage units.
7. the emergency electric system of wind-driven generator unit is used for as claimed in claim 1, it is characterised in that：Also include alarm
Unit, the Alarm Unit is connected with the energy-storage units, the electric energy for monitoring the energy-storage units, when the energy storage list
The electric energy of unit sends alarm signal when being less than predetermined value.
8. the emergency electric system of wind-driven generator unit is used for as claimed in claim 1, it is characterised in that：Also include becoming oar
Trigger element, the change oar trigger element is connected with the energy-storage units, and the electric energy for monitoring the energy-storage units is exported
Situation, when the energy-storage units carry out sending change oar trigger signal when electric energy is exported.
9. the emergency electric system for wind-driven generator unit as described in claim 1 or 7, it is characterised in that：Also include
Load cuts out trigger element, and the load cuts out trigger element and is connected with the energy-storage units, for monitoring the energy storage list
The electric energy of unit, sends load and cuts out trigger signal when the electric energy of the energy-storage units is less than predetermined value.
10. the emergency electric system of wind-driven generator unit is used for as described in claim 7, it is characterised in that：The announcement
Alert unit is remotely connected with the energy-storage units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321728.5U CN206211658U (en) | 2016-12-05 | 2016-12-05 | For the emergency electric system of wind-driven generator unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321728.5U CN206211658U (en) | 2016-12-05 | 2016-12-05 | For the emergency electric system of wind-driven generator unit |
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| CN206211658U true CN206211658U (en) | 2017-05-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875594A (en) * | 2018-08-31 | 2020-03-10 | 北京金风科创风电设备有限公司 | Wind generating set and standby redundant power supply system thereof |
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2016
- 2016-12-05 CN CN201621321728.5U patent/CN206211658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875594A (en) * | 2018-08-31 | 2020-03-10 | 北京金风科创风电设备有限公司 | Wind generating set and standby redundant power supply system thereof |
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