CN1961150A - Renewable energy resources - Google Patents
Renewable energy resources Download PDFInfo
- Publication number
- CN1961150A CN1961150A CNA2004800405854A CN200480040585A CN1961150A CN 1961150 A CN1961150 A CN 1961150A CN A2004800405854 A CNA2004800405854 A CN A2004800405854A CN 200480040585 A CN200480040585 A CN 200480040585A CN 1961150 A CN1961150 A CN 1961150A
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- China
- Prior art keywords
- wind
- driven generator
- generator
- converted
- electric power
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
Wind power is used to generate electricity as AC that can be used to supplement or replace national grid power. A plug-in unit takes electrical power from one or more wind generators and delivers the required AC to the mains.
Description
Technical field
The present invention relates to renewable energy sources.
Background technique
Wind energy has great potential as renewable energy sources.The report of the renewable energy sources that nearest examination is different finds, utilizes two top source of potential offshore wind (25GW) and wave energy (14GW) can obtain being total up to the rational renewable energy sources of cost of 60GW.Next maximum renewable energy sources is sea wind (12GW).
Wind energy is used to national grid to produce electric energy at present.This needs large-scale commercial wind field, but because needed generator cost height, the involving great expense of these wind fields.
System for individual house property generating has been proposed in we patent application WO 03/067801 early.This system comprises a wind-driven generator that is installed in this house property, makes electric energy or the replenishing as the electric energy that is provided by national grid or other general electric energy that is produced preferably is provided in this house property.
In other words, when enough wind energies can produce the required electric energy of individual house property, would rather use this electric energy, and the electric power that does not use national grid to supply with.Like this, can reduce consumption, national power supply cost also can be reduced the national grid energy.
Therefore, having proposed individual house property will have a typhoon power generator at least, for example is installed in the one or more wind wings on this house property appropriate location that is exposed in the prevailing trend.This wind wing preferably includes at least one multiple-blade rotor that drives generator.
Summary of the invention
Now, the present invention proposes the improvement to this system.
According to a first aspect of the invention, provide a wind generator device that is used to produce electric energy.This device comprises a plurality of wind-driven generators of lining up two rows at least, it is characterized by, and any row's generator is on the height different with adjacent row, and/or a row wind-driven generator is with respect to any wind-driven generator skew of adjacent row.
The device of this aspect of the present invention can be avoided the air-flow that produced by the adjacent generator work adverse effect to each wind-driven generator work.
Preferably, each wind-driven generator is installed in Height Adjustable post for example on the telescopic mast.Preferably, wind-driven generator is installed on the platform that itself is installed on roof or other appropriate configuration.
In a preferred embodiment, wind-driven generator is installed in rotation on the bearing post that departs from its center, and wind-driven generator preferably has the tail fin of the opposition side of this bearing post of deflection.This tail fin makes under predetermined wind speed preferably by spring-loaded, makes generator and drive vane thereof depart from optimum wind direction.This tail fin preferably also has a damper, with the reaction velocity of control to the wind speed change.
Preferred wind-driven generator of the present invention has a rotor that three blades are housed.
According to a second aspect of the invention, provide according to acting on epitrochanterian wind energy, produced the wind-driven generator of electric power, it is characterized by, this generator is installed in rotation on the bearing post that departs from its center etc.
The wind-driven generator of a second aspect of the present invention preferably has the tail fin of the opposition side of this bearing post of deflection.This tail fin is preferably spring-loaded, so that under predetermined wind speed, make this generator and drive vane thereof depart from optimum wind direction.This tail fin also has damper, with the reaction velocity of control to the wind speed change.
Employed preferred wind-driven generator initially produces Ac among the present invention, and preferably is connected with this Ac being converted to the device of the Ac of the Ac compatibility of supplying with building.
According to a further aspect in the invention, provide and to be converted to the Ac that is suitable for providing electric energy by the electric energy that one or more wind-driven generator produces, to replenish or to change the device of the electric energy of supplying with by national grid to building.
According to a forth aspect of the invention, provide the electric energy that wind-driven generator is produced to be converted to be suitable for the Ac that the electric energy that building uses is provided, to replenish or to substitute the system of the electric energy of supplying with by national grid.This system comprises that one or more is produced the wind-driven generator of Ac by wind energy; Be converted to phase place and voltage and control gear with the Ac that will produce by the identical Ac of the Ac of national grid supply.
This wind-driven generator can be for according to of the present invention first or the wind-driven generator of second aspect.
The Ac that device according to this aspect of the invention preferably will be produced by wind-driven generator by installing in the all-wave or the outer rectifier of installing, is converted to direct current with it, and direct current can utilize capacitor further level and smooth.Utilize a chopper circuit that is also referred to as the H network of electrical bridge, this is converted to square wave alternating-current from the direct current that rectifier comes.Utilize suitable electric, electronics of constant voltage transformer or other or electro-mechanical device, preferably this Ac is converted to sine wave alternating current.This Ac preferably with the Ac compatibility of supplying with by the common equipment of supplying with building.The phase place of the Ac that the device that this direct current is converted to Ac preferably has assurance and produced and voltage with supply with the identical device of Ac from the common equipment of supplying with building.
This constant voltage transformer is preferably the constant voltage transformer of a plurality of taps.Suitable centre tap is selected by the voltage of voltage detecting circuit, and can change if needed, so that the wind energy optimum.Device according to the present invention is with the incision main supply of suitable watt level.This device is preferably considered from main electric support aspect, makes voltage, frequency and phase angle keep and the main supply coupling.
Preferably, will be converted to by the electric energy that one or more wind-driven generator produces and be well-suited for building electric energy is provided, be placed on box or the chest with the device of the Ac that replenishes or substitute the electric energy of supplying with from national grid.This wind-driven generator can be connected with this box or chest, and this box or chest itself can be connected in the circuit of building, to supply with load electric.
Can also produce direct current for other purposes according to device of the present invention.For this purpose, the Ac that produces from generator only needs rectification.
Description of drawings
With reference to the accompanying drawings, only utilize example explanation the present invention.Wherein:
Fig. 1 and 2 is the schematic representation that is used to be installed in the wind generator device on the roof;
Fig. 3 A is illustrated in the wind-driven generator that uses in the device of Fig. 1 and 2;
Fig. 3 B is illustrated in and uses another kind of wind-driven generator in the device of Fig. 1 and 2;
Fig. 4 A schematically shows power conversions that wind the is produced control system for the Ac that uses in building;
Fig. 4 B represents another control system; With
Fig. 5 schematically shows control gear of the present invention.
Embodiment
Fig. 1 and Fig. 2 referring to accompanying drawing can find out, are used to be installed in the roof, comprise a platform 14 that is bearing on the shank 16 with the device 10 of the wind-driven generator 12 that produces electric power.A shank is arranged in each corner.The length of this shank and adjustable angle joint are to adapt to the position that this platform is installed.
Wind-driven generator 12 is installed on the post 18 with the interval that separates.This post Height Adjustable becomes flexible post.Two rows, 20 and 22 wind-driven generators are arranged.
It is very important to reduce the interference of respectively arranging between the generator, and therefore row's generator is staggered with respect to another row's generator.Like this, when when front end is seen, back row 22 generator is placed between front-seat 20 generators, and than front-seat generator height.Like this, from front end, there are not generator and another generator overlapping.This can reduce the influence to adjacent generator work of the impact of air currents that produced by generator.
Fig. 3 A of accompanying drawing represents to be used for the typical wind-driven generator 12 that the device at Fig. 1 and Fig. 2 uses.This generator 12 is installed on the post 18, and rotatable 360 °.This generator has three blades 30, and they are installed on the horizontal axis.Blade shape makes the aerodynamic requirement, so that revolution on this axle produces electric power.This generator has a tail fin 32, makes this generator rotate to the position of its blade face to prevailing trend.
The generator 100 of another replacement of expression among Fig. 3 B.This generator is installed in and is exposed to the position of wind neutralization by propulsion device 102 drivings of three blades.This generator Off center is installed on the post 104, and rotatable 360 °.Off center is installed and can be made device that rotation is arranged, not towards the trend of wind.The tail fin 106 that this power in the opposite direction is offset is offset.This tail fin 106 is by spring-loaded and damping, makes to reach under the situation of excessive speed at wind, and this spring changes this tail angle, and makes generator and propulsion device depart from the optimal direction of wind.This tail fin also has a damper with the control reaction velocity.The output of this generator is rectified into direct current again for 3 cross streams electricity.Direct current is delivered to a pair of slip ring and carbon brush, makes electric power pass to static cable from the generator of motion, passes to the control system (see figure 5) then.
When priming speed was approximately 3m/sec, this system began to produce available electric power, and exported 1000W when 12m/sec.(above 34m/h) stopper can prevent the damage that too fast rotation causes by add braking action in generator under the power condition of strong wind.As additional safety measure, make this device surface tail fin aweather have the reefing device of a spring-loaded/damping, rotatable this device departs from strong wind.
Fig. 4 represents that the power conversions that will be produced by the device of Fig. 1 is to can be used for replenishing or substituting a typical control system that supplies with the electric power of building from common device power supply (DPS).Wind generator device 10 produces alternating current (a.c.), and this alternating current (a.c.) is converted to direct current by a full wave rectifier 50 with it, then by chopper circuit 52, produces the square wave alternating-current of 50Hz.At the two ends of chopper 52 is a voltage detector 54, and it is connected with constant voltage transformer 58 transformable tapping switch parts 56 before.This constant voltage transformer produces the Ac of 240V and the sinusoidal wave form of 50Hz.Before the power supply of delivering to building 62, the output of this constant voltage transformer 58 is by a table 60.After using scale 66, it enters the power supply of normal device 64.
The phase place that makes the Ac of sending from wind-driven generator is identical with the phase place of national grid ac power supply to be important.Therefore, between power supply that wind-driven generator produces and chopper circuit 52, the feedback loop 70 at detected phase angle is set, thereby controls this chopper circuit, produce Ac with the correct phase of main line power supply coupling.
Fig. 4 B represents to be converted to by the Ac that wind-driven generator produces another control circuit of the Ac identical with voltage with the phase place of main line power supply.This circuit is identical with the circuit shown in Fig. 4 A, and therefore main difference now only is described.
Table 60 is SAIA Burgess table, and it is connected with logic card 71 by feedback loop, is used for the detected phase angle.LXN protective relay 73 is arranged between table 60 and trunk connecting unit, it be used to protect prevent because of control system with damage incorrect connection of main line.In addition, also have a neon indicator 75, be used to represent whether this device is connected.
In fact, as shown in Figure 5, the device of conversion Ac of wind-driven generator 12 or direct current output is delivered to and is comprised above-mentionedly, direct current output is converted to a portable control box 80 of the part that exchanges output.This Direct box 80 has the handle of carrying 82, and can utilize electric connector 84 or other suitable connections directly to insert in the socket of building circuit, so that give the load power supply of building at least in part.This Direct box comprises a wattmeter 86.Like this,, particularly be placed on the roof, power supply be connected with this Direct box 70 and it is connected by the main line socket in the circuit of building, generator system can be installed with comparalive ease by wind-driven generator being placed on an exposure position.
As a selection, a sensor of measuring power can be set on the incoming trunk power supply, perhaps in other words, electrical network satisfies the power supply of family expenses needs.Can arrange this sensor to communicate by letter with this Direct box 80, if make input power reduce to predetermined level-for example 20 watts, then control gear can lower efficiency to prevent the actual electrical network of sending back to of electric power.When because efficient reduces or wind energy reduces, and input power increases to such as 50 watt-hours, then this control gear improves efficient to keeping predetermined level or using the level of maximum wind energy.
When mains power fails, this control gear must throw off and cut out.Yet, but the wind energy power supply of independent utility if desired, this control gear can be thrown off with main supply, so that work alone.Can establish an isolating switch of can be automatically or mechanically handling, so that this control gear can provide the electric power of independent utility and send any electric power that is produced by wind, can be used by family.This control gear can have electric power storage facility, for example rechargeable battery.This control gear has the device when the detection mains electricity is recovered.This device can provide one to represent the signal that this control gear can reconnect or can automatically reconnect this control gear.
Can dispose this control gear, making to have unnecessary electric power to return to electrical network.Like this, this control gear can be supplied the electric power that need lack slightly than family expenses.Yet this control gear also can return to electrical network with electric power if desired.
Control gear and wind powered generator system can comprise following characteristics:
1. can design generator blade and make to have the stall effect that to regulate voluntarily.
2. can make it can have the reefing afterbody of a spring-loaded/damping, make it depart from strong wind so that rotate towards the motor tail fin of wind.
3. in order to add braking action on generator, this generator can have the switch that is contained in inner centrifugal work.But this switch manual-reset adjustment after work.This switch is preferably worked under predetermined rotating speed-for example about 1160rpm..
4. this control gear can have when the too high or other times of voltage rising, applies the facility of similar braking force during as system requirements.
5. this control gear can have in Long-time Shut-down, under the excessive condition of heavy storm or in order to keep in repair purpose, stops the manually operated switch of this generator.
For can such as when very close to local work or when keeping in repair purpose, can on-the-spot an additional switch be installed on the generator this control gear can be switched to braking.
7. in this control gear, be provided preferably with the protection of the electrical fuse of standard.
8. this control gear also preferably includes the device that prevents main supply or the incorrect connection of generator power supply.
9. this control gear preferably includes a temperature transducer.When reaching first predetermined temperature, this sensor can make a cooling fan job, and when reaching second predetermined temperature, closes this device.
10. this control gear can shut down and braking force is added on the generator under the situation that main line has a power failure.
Claims (37)
1. wind generator device that is used to produce electric power, this device comprises the many typhoons power generator that is at least two rows, the height of wherein any row's generator is different with adjacent row's height, and/or a row of wind generator is with respect to any wind-driven generator skew of adjacent row.
2. device as claimed in claim 1 is characterized by, and each typhoon power generator all is installed on the Height Adjustable post.
3. device as claimed in claim 2 is characterized by, and the height telescopically of this post is regulated.
4. as claim 1,2 or 3 described devices, it is characterized by, wind-driven generator is installed on the platform, and this platform itself is installed on roof or other the suitable structures.
5. as any described device in the claim 1～4, it is characterized by, this wind-power generator maximal just produces Ac.
6. device as claimed in claim 5 is characterized by, and this wind-driven generator is connected with described Ac being converted to the device of the Ac of the Ac compatibility of delivering to building.
7. as any described device in the claim 1～6, it is characterized by, this wind-driven generator is rotatably mounted.
8. as any described device in the claim 1～6, it is characterized by, wind-driven generator rotationally, departing from wherein, heart is installed on the bearing post.
9. device as claimed in claim 8 is characterized by, and this wind-driven generator has the tail fin of a skew to an opposite side of this bearing post.
10. device as claimed in claim 9 is characterized by, and this tail fin is by spring-loaded.
11. as claim 9 or 10 described devices, it is characterized by, this tail fin has the damper of a control reaction velocity.
12. as any described device in the claim 1～11, it is characterized by, this wind-driven generator has a rotor with three blades.
13. a response acts on epitrochanterian wind energy, produces the wind-driven generator of electric power, it is characterized by, this generator departs from its center, is installed in rotation on the bearing post.
14. wind-driven generator as claimed in claim 13 is characterized by, it has the tail fin of skew to an opposite side of this bearing post.
15. wind-driven generator as claimed in claim 14 is characterized by, this tail fin is by spring-loaded.
16. as claim 14 or 15 described wind-driven generators, it is characterized by, this tail fin has a damper of control reaction velocity.
17. as any described wind-driven generator in the claim 13～16, it is characterized by, this rotor has three blades.
18. a power conversions that is used for being produced by one or more wind-driven generator is for being applicable to building provides electric power, to replenish or to substitute the device of the Ac of the electric power of being supplied with by national grid.
19. device as claimed in claim 18 is characterized by, this wind-driven generator be as in the claim 11～17 any one described.
20. as claim 18 or 19 described devices, it is characterized by, the inner or outside rectifier of installing is converted to direct current to the Ac that is produced by wind-driven generator by an all-wave.
21. device as claimed in claim 20 is characterized by, direct current is converted to square wave alternating-current from rectifier.
22. device as claimed in claim 21 is characterized by, and utilizes chopper circuit, and direct current is converted to Ac.
23. device as claimed in claim 22 is characterized by, it has the device that the Ac of conversion is converted to sine wave alternating current.
24. device as claimed in claim 23 is characterized by, the device that Ac is converted to sine wave alternating current is a constant voltage transformer.
25. as any described device in the claim 18～24, it is characterized by, it comprises the device that produces the phase place sine wave alternating current identical with the Ac of being supplied with by the common facility of delivering to building with voltage.
26. as any described device in the claim 18～25, it is characterized by, this device is contained in and can be connected with wind-driven generator and itself can be connected in the circuit of building, in the box or chest that send electricity to load.
27. the power conversions that will be produced by wind-driven generator is an Ac, is used for providing electric power to building, to replenish or to substitute the system of the Ac of the electric power of being supplied with by national grid; This system comprises that one or more produces the wind-driven generator of Ac from wind energy, is converted to phase place and voltage and control gear by the identical Ac of the Ac of national grid supply with the Ac that will be produced.
28. system as claimed in claim 27 is characterized by, this wind-driven generator is any described wind-driven generator in the claim 1～17.
29., it is characterized by as claim 27 or 28 described systems, by the Ac that wind-driven generator produces, install or the outside rectifier of installing by an all-wave is inner, be converted to direct current.
30. system as claimed in claim 29 is characterized by, the direct current that comes from rectifier is converted to square wave alternating-current.
31. system as claimed in claim 30 is characterized by, and utilizes chopper circuit that direct current is converted to Ac.
32. system as claimed in claim 31 is characterized by, it has the device that the Ac of conversion is converted to sine wave alternating current.
33. system as claimed in claim 32 is characterized by, the device that Ac is converted to sine wave alternating current is a constant voltage transformer.
34. as any described system in the claim 27～33, it is characterized by, it comprises the device that produces the phase place sine wave alternating current identical with the Ac of supplying with from the common facility of supplying with building with voltage.
35. as any described system in the claim 27～34, it is characterized by, this device is contained in and can be connected with wind-driven generator and itself can be connected in the circuit of building, in the box or chest that send electricity to load.
36. be used to produce basically as above wind-driven generator with reference to the described electric power of any one accompanying drawing.
37. be used for producing basically as above wind-driven generator with reference to the described electric power of any one accompanying drawing from wind energy.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0326879.4A GB0326879D0 (en) | 2003-11-19 | 2003-11-19 | Renewable energy resources |
| GB0326879.4 | 2003-11-19 | ||
| GB0405799.8 | 2004-03-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1961150A true CN1961150A (en) | 2007-05-09 |
Family
ID=29764038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800405854A Pending CN1961150A (en) | 2003-11-19 | 2004-11-18 | Renewable energy resources |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1961150A (en) |
| GB (1) | GB0326879D0 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147923A (en) * | 2013-03-14 | 2013-06-12 | 江苏新誉重工科技有限公司 | Strong wind resistance wind turbine generator system |
| CN108385610A (en) * | 2018-01-25 | 2018-08-10 | 浙江水利水电学院 | A kind of Anti-Typhoon dykes and dams of seashore and its building method |
-
2003
- 2003-11-19 GB GBGB0326879.4A patent/GB0326879D0/en not_active Ceased
-
2004
- 2004-11-18 CN CNA2004800405854A patent/CN1961150A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147923A (en) * | 2013-03-14 | 2013-06-12 | 江苏新誉重工科技有限公司 | Strong wind resistance wind turbine generator system |
| CN108385610A (en) * | 2018-01-25 | 2018-08-10 | 浙江水利水电学院 | A kind of Anti-Typhoon dykes and dams of seashore and its building method |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0326879D0 (en) | 2003-12-24 |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |