CN1740559A - Combined wind energy and hydraulic power varying generator - Google Patents
Combined wind energy and hydraulic power varying generator Download PDFInfo
- Publication number
- CN1740559A CN1740559A CNA2005100960331A CN200510096033A CN1740559A CN 1740559 A CN1740559 A CN 1740559A CN A2005100960331 A CNA2005100960331 A CN A2005100960331A CN 200510096033 A CN200510096033 A CN 200510096033A CN 1740559 A CN1740559 A CN 1740559A
- Authority
- CN
- China
- Prior art keywords
- generator
- wind energy
- hydraulic
- power
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The wind energy hydraulic power varying generator is one wind force power generator to convert wind energy into hydraulic energy to drive great power generator to produce electric power. The structural principle of the present invention is that the kinetic energy of several wind wheels are combined and converted into hydraulic energy mechanically, and the hydraulic energy is integrated into one powerful hydraulic transmission mechanism and used in driving one great power generator. The present invention has computer control to regulate hydraulic transmission and to stabilize rotation speed, and generator with varying power to output voltage. The present invention has simple structure, easy manufacture, low cost and great electrical power.
Description
One technical field:
The present invention relates to a kind of form and wind energy is transformed into hydraulic pressure can provides kinetic energy, drive the wind power plant that high-power generator generates electricity again to generator with combination.
Two background techniquies:
Present wind power plant all is that the wind wheel rotation directly drives generator for electricity generation through speed change, regulating device, and there is following problem in long-term operation:
1, because present wind power plant is several tons weight mostly, all be erected on 30 meters-60 meters high columns, require for the intensity of column, stiffness, stability and safety etc. high, the difficulty of increased manufacture cost, transport, set up, monitor, keeping in repair.
2, because the nature wind power energy is changeable and random, very strict for the adjustment requirement of generator constant speed generation, the arrangements for speed regulation design is very complicated, and required precision is high, has increased manufacturing and cost of production.
3, change for adapting to various wind-force, generally generator designs is become three groups of generatings, wind-power electricity generation was the generating of low speed low-power when promptly wind-force was the 3-5 level; Wind-power electricity generation was power generating in the middling speed when wind-force was the 5-8 level; Wind-power electricity generation was the high-speed high-power generating when wind-force was the 8-12 level.Generator designs becomes three groups of generatings, needs to carry out according to the wind-force size at any time the transmission of electricity incision conversion of generator power conversion and different capacity.So device structure is very complicated, fault is many, and can only guarantee specified low-power, middle power, high-power generating when these three kinds of wind-force intervals, wherein every kind of interval generating of wind-force all has the hypervelocity a large amount of wattless power existence of timing down, has lost when speed governing.When high wind occurring more than 12 grades, also to employ anti-high wind device, so greatly reduce wind energy utilization.
4, rotor diameter is definite along with the demand of generator rating power in practice, for example to need wind energy power density rotor diameter when 200W be 80 meters to the generator of 1000kw, single blades length is 40 meters, in order to guarantee needed intensity of fan blade and stiffness, will extremely pay attention to performance requirement to its structure and material, under the condition that guarantees its intensity and stiffness, alleviate the weight of fan blade as far as possible.Because the requirement of static and dynamic equilibrium is quite high to the requirement of one group of fan blade quality compactness, bigger, time-consuming, the effort of difficulty during adjustment, fan blade is long more, and manufacturing, debugging difficulty and work time cost are just big more.So will increase the rated power of generator, will be subjected to having increased manufacture difficulty because of the increase of fan blade length, and the restriction that has increased the installment work debugging.
5, present both at home and abroad wind-power electricity generation substantially all is to be a generator set with 1000kw, by several set grid-connections power supplies.Because manufacture cost and equipment installation cost are big, make the rate for incorporation into the power network of wind-power electricity generation be up to 0.9 yuan/kwh, it is many to surpass the thermoelectricity rate for incorporation into the power network, also need preferential support of national policy and subsidy to solve the part that overprices of surfing the Net, so influenced enthusiasm and enthusiasm that government and enterprise do wind-powered electricity generation, investment and slower development make China be subjected to certain restriction to the development and use of reproducible utilization, environmental protection, zero wind energy that pollutes, and have influenced the fast development of China's wind-power electricity generation cause.
Three summary of the invention:
The objective of the invention is to develop a kind of combined wind energy and hydraulic power varying generator, simple in structure, a kind of high-power wind power generation equipment easy to manufacture, that cost is little, the wind-powered electricity generation rate for incorporation into the power network will be near or below the thermoelectricity rate for incorporation into the power network, the generated output separate unit can reach several 10 MW class, do not increasing rotor diameter and increasing under the length condition of fan blade, simultaneously by the incompatible realization of wind wheel sets of numbers.
Basic principle of the present invention is: be to increase generator power and don't increase rotor diameter, required wind energy area is made up by the wind wheel of n original diameter and finishes; Be the kinetic energy of set n group wind wheel, direct mechanical transmission is changed into hydraulic transmission after, to a powerful fluid drive mechanism, drive the high-power generator generating by the hydraulic system set; Reach rated speed with hydraulic pressure adjustment driver and speed changer; The variation that adapts to and mate natural wind energy power with the variable power that becomes power generator; Automatically control and adjust the hydraulic transmission weighing apparatus by computer control by computer software and decide work such as rotating speed, generator change power, output current voltage and incision online.
Be the technical solution of the present invention that achieves the above object: combined wind energy and hydraulic power varying generator, substantially by wind energy engine, and the computer controller 18 of regulating and controlling and output electric energy is connected generator 15 compositions, it is characterized in that: combined wind energy and hydraulic power varying generator is to be connected to jointly on the separate piece generator 15 through hydraulic pressure installation by n wind energy engine combination in parallel, and be connected single generator 15 and form by regulating the computer controller 18 of control with the output electric energy, wherein in n combined wind energy machine in parallel, the wind wheel 1 that sets up on the column 20 of each wind energy engine connects oil pump 3 through gearbox 2, and oil pump 3 outputs connect check valve 5; In hydraulic pressure installation, the output-parallel of each check valve 5 is connected to separate piece driver 13 through accumulator 6, collection pressure cylinder 7, pressure governor 8, ACTUATING VALVE 9, solenoid valve 10, check valve 11 jointly successively, driver 13 has two outputs simultaneously, one is each fuel reserve tank 4 of hydraulic pressure output-parallel, the output of each fuel reserve tank 4 connects oil pump 3 separately, another output terminal of ACTUATING VALVE 9 each fuel reserve tank 4 also in parallel, the another one machinery output of driver 13 is connected to generator 15 through separate piece speed changer 14; The electric energy of separate piece generator 15 is through computer controller 18 outputs.
Technical solution of the present invention also comprises:
Described combined wind energy and hydraulic power varying generator is characterized in that: described n wind energy engine combination in parallel, n wind energy engine is same component, structure and mechanism.
Described combined wind energy and hydraulic power varying generator is characterized in that: described in hydraulic pressure installation, oil pressure sensor 12 two ends are connected to the input end of collection pressure cylinder 7 and the output terminal of check valve 11.Described combined wind energy and hydraulic power varying generator, it is characterized in that: the electric energy output end of separate piece generator 15 is connected computer controller 18 by three phase current cable 16 with adjustment of field excitation circuit 17 with the adjusting control end, and the threephase AC electric energy output of computer controller 18 connects the electric substation that online is powered through output transformer 19.
Described combined wind energy and hydraulic power varying generator is characterized in that: separate piece driver 13 is a kind of translation hydraulic drive motors 13 that can be converted to the mechanical rotation energy by hydraulic pressure.
1 described combined wind energy and hydraulic power varying generator is characterized in that: separate piece driver 13 is a kind of rotation hydraulic drive motors 13 that can be converted to the mechanical rotation energy by hydraulic pressure.
Described combined wind energy and hydraulic power varying generator is characterized in that: generator 15 is that a kind of three-phase AC excitation becomes power generator 15.
Described combined wind energy and hydraulic power varying generator is characterized in that: generator 15 is a kind of three-phase AC excitation rated power generators 15.
Advantage of the present invention and effect:
1, because the present invention has adopted combined wind energy and hydraulic structure and method, when being increased, generator power needn't increase rotor diameter, and only need increase the quantity of wind wheel, this has just reduced because of fan blade length and has increased the difficulty that manufacturing process, material selection and manufacturing, adjustment are increased; Can under existing conditions of manufacture, finish the manufacturing of high-power wind power generation equipment and generating is installed.
2, owing to having adopted hydraulic control to adjust changed speed operation, the present invention reaches constant rotational speed, the speed governing of former cause ten minutes complicated mechanical has been become by simple hydraulic control realize speed governing, thereby make speed governing more accurate, also reduced manufacture difficulty and cost of production simultaneously.
3, because the present invention has taked the change power generator, it can be according to the variation of natural wind energy and servo-actuated changes generator power, wind energy power after assurance and the variation is complementary, manyly meet generator rating power and the wattless power that forms thereby reduce, make wind energy utilization improve 20%-30% with the adjustment wind energy.
4, become installation on the ground because the present invention has adopted by originally generator and gearbox being installed in the column top, thereby easy set up and keep in repair, because of column top pressure reduces, the diameter of column is diminished simultaneously, more economize with material, manufacture cost descends.
5, because the present invention has adopted the combined wind energy and hydraulic power varying generating, thereby realized high-power wind power generation, with many medium and small wind-driven generators of former cause, be combined into a large-scale wind generating factory, synthesized an equipment by some same categories of device, become one as gearbox, generator, computer controller, transformer etc. by n, saved cost of equipment, reduced cost of investment.
6, because the present invention has adopted combined wind energy and hydraulic power varying generator, reduced the wattless power in many wind-power electricity generations, made generated energy increase by 30%, cost of investment reduces by 2/5, thereby make the maximization of rate for incorporation into the power network, and move closer to or be lower than the thermoelectricity rate for incorporation into the power network along with generated output.
7, combined wind energy and hydraulic power varying generator is through statistics, accounting, because of the manufacture difficulty that reduced equipment, reduced many similar adjustment equipment and increased generated energy, so make the wind power plant cost of investment reduce about 2/5, gradually through near or be lower than the electricity price of thermoelectricity online, economic benefit is very objective, make government, enterprise and individual enthusiasm and the enthusiasm that improves the investment wind-powered electricity generation greatly, will the development of China's wind-powered electricity generation be played a role in promoting.Combined wind energy and hydraulic power varying generator at home and abroad maintains the leading position in the wind-power electricity generation industry, and very vast potential for future development and exploitation future are arranged, and for solving China's power supply shortage, development national economy plays beyond measure effect
Four, description of drawings:
Accompanying drawing of the present invention is an overall structure working principle schematic representation, the number in the figure explanation:
1 (or be called 1-n[n and represent quantity, down with]) wind wheel, 2 (2-n) gearbox, 3 (3-n) oil pump, 4 (4-n) fuel reserve tank, 5 (5-n)-check valve valves, 6 one accumulators, 7 one collection pressure cylinders, the 8-pressure governor, 9 one ACTUATING VALVE unloading valves, 10-solenoid valve, 11 1 check valves, 12 1 hydrostatic sensors, 13 1 drivers, 14 1 speed changers, 15. generators, 16 1 three phase current cables, the 17-excitation is adjusted circuit, 18 1 computer controllers, 19 1 transformers, 20 (20-n)-columns.
Five, embodiment:
4 megawatt combined wind energy and hydraulic power varying generators of new Development and design, the maximum output of generator 15 is 4000kw * 120%=4800kw, needing the separate unit rotor diameter is 180 meters, now adopt the wind wheel 1 of 40 meters of 4 radiuses, drive corresponding 4 powerful oil pump 3 work, oil pump 3 outputs are through check valve 5, accumulator 6, collection pressure cylinder 7, pressure governor 8 connects driver 13, big pressure oil pressure is provided for driver 13, driver 13 becomes required constant mechanical separator speed output through several translation ram pots with hydraulic transmission, drives generator 15 through speed changer 14 again and sends threephase AC.When wind-force reduced the wind energy reduction, hydraulic transmission power reduced, and diminish the power of generator 15 through the excitation intensity of computer controller 18 adjustment field coil circuits 17 this moment, makes it to be complementary with hydraulic power.When wind-force became high-power increase, oil pressure raise, and this moment, generator 15 power also increased thereupon, and resistance also increases when power increases, and made speed changer 14 rotating speeds keep constant.Reduced a large amount of wattless powers of adjusting rotating speed when the rated power generator needs wind energy to change and producing simultaneously, the electric weight that generator is sent increases by 30%.When hydraulic transmission power surpasses generator power 20%, adjust ACTUATING VALVEs 9 by computer controller 18 and realize releases, if when occurring in disastrous high wind more than 15 grades, what phoenix wheel 1 was rotated in computer controller 18 controls is subjected to the long-pending purpose that reaches normal use of front cover.After adjusting, computer controller 18, threephase AC is delivered to transformer 19, the electric substation that after transformation, the is conveyed into 220kv power supply of being incorporated into the power networks with safe and reliable incision feed point; Also can be from the independent electricity consumption of net.Driver 13 has two outputs simultaneously, one is that hydraulic pressure outputs to each fuel reserve tank 4, the output of each fuel reserve tank 4 connects oil pump 3 separately, another output terminal of ACTUATING VALVE (9) each fuel reserve tank (4) also in parallel, the another one machinery output of driver (13) is connected to generator 15 through separate piece speed changer 14; The electric energy of separate piece generator 15 is through computer controller 18 outputs.Oil pressure sensor 12 two ends are connected to the input end of collection pressure cylinder 7 and the output terminal of check valve 11.
According to above test, calculating and analysis, can assert that adopting combined wind energy and hydraulic power varying generator to be incorporated into the power networks from net type wind-power electricity generation is feasible, has solved the difficult problem of the required speciality fan blade of original high-power wind power generation.Owing to adopted change power generator, hydraulic speed regulating device and computer controller, make wind energy utilization improve 20-30%, be that the actual power amount has increased by 30%, make rate for incorporation into the power network be near or below the thermoelectricity rate for incorporation into the power network, this not only energy-conservation but also free of contamination wind power plant will contribute to the development of China's wind-powered electricity generation cause undoubtedly.
Claims (8)
1, combined wind energy and hydraulic power varying generator, substantially by wind energy engine, and the computer controller (18) of regulating and controlling and output electric energy is connected generator (15) composition, it is characterized in that: combined wind energy and hydraulic power varying generator is to be connected to jointly on the separate piece generator (15) through hydraulic pressure installation by n wind energy engine combination in parallel, and be connected single generator (15) and form by regulating the computer controller (18) of control with the output electric energy, wherein in n combined wind energy machine in parallel, the wind wheel (1) that sets up on the column of each wind energy engine (20) connects oil pump (3) through gearbox (2), and oil pump (3) output connects check valve (5); In hydraulic pressure installation, the output-parallel of each check valve (5) passes through accumulator (6) jointly successively, collection pressure cylinder (7), pressure governor (8), ACTUATING VALVE (9), solenoid valve (10), check valve (11) is connected to separate piece driver (13), driver (13) has two outputs simultaneously, one is each fuel reserve tank of hydraulic pressure output-parallel (4), the output of each fuel reserve tank (4) connects oil pump (3) separately, another output terminal of ACTUATING VALVE (9) each fuel reserve tank (4) also in parallel, the another one machinery output of driver (13) is connected to generator (15) through separate piece speed changer (14); The electric energy of separate piece generator (15) is through computer controller (18) output.
2, combined wind energy and hydraulic power varying generator according to claim 1 is characterized in that: described n wind energy engine combination in parallel, n wind energy engine is same component, structure and mechanism.
3, combined wind energy and hydraulic power varying generator according to claim 1 is characterized in that: described in hydraulic pressure installation, oil pressure sensor (12) two ends are connected to the input end of collection pressure cylinder (7) and the output terminal of check valve (11).
4, combined wind energy and hydraulic power varying generator according to claim 1, it is characterized in that: the electric energy output end of separate piece generator (15) is connected computer controller (18) by three phase current cable (16) with adjustment of field excitation circuit (17) with the adjusting control end, and the threephase AC electric energy output of computer controller (18) connects the electric substation that online is powered through output transformer (19).
5, combined wind energy and hydraulic power varying generator according to claim 1 is characterized in that: separate piece driver (13) is a kind of translation hydraulic drive motor (13) that can be converted to the mechanical rotation energy by hydraulic pressure.
6, combined wind energy and hydraulic power varying generator according to claim 1 is characterized in that: separate piece driver (13) is a kind of rotation hydraulic drive motor (13) that can be converted to the mechanical rotation energy by hydraulic pressure.
7, according to claim 1 or 4 described combined wind energy and hydraulic power varying generators, it is characterized in that: generator (15) is that a kind of three-phase AC excitation becomes power generator (15).
8, according to claim 1 or 4 described combined wind energy and hydraulic power varying generators, it is characterized in that: generator (15) is a kind of three-phase AC excitation rated power generator (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100960331A CN1740559A (en) | 2005-09-15 | 2005-09-15 | Combined wind energy and hydraulic power varying generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100960331A CN1740559A (en) | 2005-09-15 | 2005-09-15 | Combined wind energy and hydraulic power varying generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1740559A true CN1740559A (en) | 2006-03-01 |
Family
ID=36093055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100960331A Pending CN1740559A (en) | 2005-09-15 | 2005-09-15 | Combined wind energy and hydraulic power varying generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1740559A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007073665A1 (en) * | 2005-12-12 | 2007-07-05 | Xiaoping Duan | A wind electricity generating device and system |
| WO2007143902A1 (en) * | 2006-05-29 | 2007-12-21 | Xiaoping Duan | A rotary mechanism of a hydraulic transmission wind generator |
| CN101793232B (en) * | 2010-02-05 | 2011-11-16 | 上海僖舜莱机电设备制造有限公司 | Hydraulically controlled frequency stabilization power generating method |
| CN102251917A (en) * | 2011-06-23 | 2011-11-23 | 杨建新 | Rotating disk and rotating blade type wind generating set |
| CN103047088A (en) * | 2013-01-15 | 2013-04-17 | 青岛经济技术开发区泰合海浪能研究中心 | Tower-form type multilayer hydraulic vertical-axis wind turbine |
-
2005
- 2005-09-15 CN CNA2005100960331A patent/CN1740559A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007073665A1 (en) * | 2005-12-12 | 2007-07-05 | Xiaoping Duan | A wind electricity generating device and system |
| WO2007143902A1 (en) * | 2006-05-29 | 2007-12-21 | Xiaoping Duan | A rotary mechanism of a hydraulic transmission wind generator |
| CN101793232B (en) * | 2010-02-05 | 2011-11-16 | 上海僖舜莱机电设备制造有限公司 | Hydraulically controlled frequency stabilization power generating method |
| CN102251917A (en) * | 2011-06-23 | 2011-11-23 | 杨建新 | Rotating disk and rotating blade type wind generating set |
| CN103047088A (en) * | 2013-01-15 | 2013-04-17 | 青岛经济技术开发区泰合海浪能研究中心 | Tower-form type multilayer hydraulic vertical-axis wind turbine |
| CN103047088B (en) * | 2013-01-15 | 2016-05-25 | 青岛经济技术开发区泰合海浪能研究中心 | Tower-type multistage hydraulic vertical axis aerogenerator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3004634B1 (en) | Wind power plant controller | |
| CN102377189B (en) | Optimal configuration and operation method for reactive compensation of wind farm | |
| CN202583421U (en) | Megawatt wind power simulation test system | |
| CN103715696B (en) | A kind of wind power plant reactive voltage cluster control method based on multiple Wind turbines mutual aid | |
| Nath et al. | The modeling and simulation of wind energy based power system using MATLAB | |
| CN113190978B (en) | Motor type selection method and system in drainage pump station | |
| CN1740559A (en) | Combined wind energy and hydraulic power varying generator | |
| CN102738807B (en) | All-station reactive optimal control method for intensively integrating wind farms into public transformer substation | |
| CN1967961A (en) | Method for merging low-frequency wind generating set into electric network | |
| CN102854463A (en) | Megawatt wind power simulation test system and test method | |
| Murray et al. | Applications of supercapacitor energy storage for a wave energy converter system | |
| CN102692601B (en) | Low-voltage and medium-voltage wind power generation simulation experimental platform | |
| Nazir et al. | Renewable energy based experimental study of doubly fed induction generator: Fault case analysis | |
| CN202550587U (en) | Direct drive type grid-connected wind generating set | |
| Chen et al. | Stability improvement of wind turbine systems by STATCOM | |
| Marinelli et al. | Modeling of doubly fed induction generator (DFIG) equipped wind turbine for dynamic studies | |
| CN102477947A (en) | Wind energy and hydraulic pressure combined type generating device | |
| Gianto | Steady state load flow model of DFIG-based wind turbine in voltage control mode | |
| Osman et al. | Application of FVSI, Lmn and CPF techniques for proper positioning of FACTS devices and SCIG wind turbine integrated to a distributed network for voltage stability enhancement | |
| Jindal et al. | Modeling and performance analysis of an integrated wind/diesel power system for off-grid locations | |
| Aguglia et al. | Selection of gearbox ratio and power converters ratings for wind turbines equipped with doubly-fed induction generators | |
| Aluko | Modelling and performance analysis of doubly fed induction generator wind farm | |
| CN106451558A (en) | Power network system with large-scale wind power integration | |
| Pachauri | Maximum Power Extraction from WT under Climatic Conditions using Fuzzy Control Schemes | |
| Mihet-Popa et al. | Modelling and Simulation of a 12 MW Active-Stall Constant-Speed Wind Farm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |