CN101604865B - Wind power generation system for low-voltage DC power supply - Google Patents
Wind power generation system for low-voltage DC power supply Download PDFInfo
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- CN101604865B CN101604865B CN2009103047742A CN200910304774A CN101604865B CN 101604865 B CN101604865 B CN 101604865B CN 2009103047742 A CN2009103047742 A CN 2009103047742A CN 200910304774 A CN200910304774 A CN 200910304774A CN 101604865 B CN101604865 B CN 101604865B
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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
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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 invention provides a wind power generation system for low-voltage DC power supply in the technical field of wind power generation. The system comprises a wind power generating set, a wind energy control power source, a storage battery pack and a backup power source controller, wherein the three-phase output end of the wind power generating set is connected to the input end of the wind energy control power source; the output end of the wind energy control power source is connected to the storage battery pack; the input end of the backup power source controller is connected with the output end of the storage battery pack and the output end of a backup power source respectively; the output end of the backup power source controller is connected to the storage battery pack through a switching power source; and the load output end of the wind energy control power source is connected to electrical equipment. Aiming at the characteristics of low-voltage DC power supply systems, the overall efficiency and power supply reliability of the generation system are greatly improved.
Description
Technical field
What the present invention relates to is a kind of device of technical field of wind power generation, specifically is a kind of wind power generation system for low-voltage DC power supply.
Background technology
The low-voltage direct-flow electricity utilization apparatus need adopt the DC power supply of relevant voltage grade.The powering mode that traditional low-voltage DC power-supply system generally adopts civil power and batteries to combine, the batteries rated voltage is consistent with the power consumption equipment rated voltage, and civil power is supplied power to battery charging and power consumption equipment through Switching Power Supply.In recent years, along with the application of low-voltage DC power-supply system is increasingly extensive, power consumption grows with each passing day, and the requirement of introducing green energy resource is also more and more urgent.At present, the low-voltage DC power-supply system adopts solar energy often at the introducing green energy resource, but solar powered mode cost is high, and floor space is big, and solar cell need consume a large amount of energy in process of production.Comparatively speaking, the wind turbine generator cost is low, and the production process power consumption is low, and it is few to take natural resources, and floor space is little during application; Under the equal energy output condition, the cost of wind power generation is well below solar power generation.Therefore, wind power generation is widely applied to low-voltage direct current supply field and has become a trend.
At present, the low-voltage DC power-supply system is introduced wind power generation and mainly adopted three kinds of modes: 1) the wind turbine generator output voltage is consistent with the power consumption equipment rated voltage, and its output electric energy is directly supplied power to battery charging and power consumption equipment behind over commutation.2) the wind turbine generator output voltage is higher than the power consumption equipment rated voltage; Use step-down transformer that the wind turbine generator output voltage is reduced to the alternating voltage that adapts with the power consumption equipment rated voltage, directly supply power after the rectification to battery charging and power consumption equipment.3) voltage of wind turbine generator output is higher than the power consumption equipment rated voltage, is the three-phase main-frequency alternating voltage with wind turbine generator output voltage commutation inversion, supplies power to battery charging and power consumption equipment through Switching Power Supply; For making the inverter steady operation, must additional configuration and the batteries that adapts of wind turbine generator output voltage.
More than three kinds of wind power generations introduce modes and all have certain deficiency.During mode 1 is applied to load bigger low-voltage DC power-supply system, the wind turbine generator output current of low-voltage is big, and the loss that generator windings loss and electric energy transmitting process produce is considerable; Though mode 2 has only increased step-down transformer, this transformer is not conventional Industrial Frequency Transformer, is manufactured with difficulty, not only increases cost, reduces system effectiveness simultaneously yet; Mode 3 is used comparatively general, also be simultaneously increase cost at most, reduce the maximum mode of system effectiveness, not only increase equipment, and extraly increased a large amount of batteries, run counter to the original intention of energy-conserving and environment-protective.
Summary of the invention
The present invention is directed to the above-mentioned deficiency that prior art exists, a kind of wind power generation system for low-voltage DC power supply is provided,, increase substantially the whole efficiency and the power supply reliability of electricity generation system to the characteristics of low-voltage DC power-supply system.
The present invention realizes through following technical scheme; The present invention includes: wind turbine generator, wind energy control power supply, batteries and back-up source controller; Wherein: the three-phase output end of wind turbine generator is connected to the input of wind energy control power supply; The output of wind energy control power supply is connected to batteries; The input of back-up source controller is connected with the output of batteries and the output of back-up source respectively, and the output of back-up source controller is connected to batteries through Switching Power Supply, and the load output of wind energy control power supply is connected to power consumption equipment.
Described back-up source comprises: civil power and diesel engine generator;
Described wind energy control power supply comprises: Power Conversion module, power control module and control circuit module; Wherein: the three-phase output end of wind turbine generator is connected to the input of Power Conversion module and power control module; The output of Power Conversion module is connected to batteries and power consumption equipment, and control circuit module is connected with power control module with the Power Conversion module respectively.
Described back-up source controller mainly comprises: storage battery detection module, civil power detection module, bavin electro-detection module and switching controls module; Wherein: the storage battery detection module is connected to the control end of batteries; The civil power detection module is connected with the three-phase output end of back-up source respectively with bavin electro-detection module; The control end of switching controls module is connected with the control end of back-up source; The input of switching controls module is connected to the signal output part of storage battery detection module, civil power detection module and bavin electro-detection module respectively, and the output of switching controls module is connected with the input of batteries through Switching Power Supply.
The present invention carries out work in the following manner: when the batteries power shortage, input is normal if the back-up source controller detects civil power, and then the back-up source controller is cut civil power, passes through Switching Power Supply to battery charging and power consumption equipment power supply by civil power; If the back-up source controller detects city's electrical anomaly, then the back-up source controller will start diesel engine generator automatically, after back-up source controller detection bavin electricity is normal, be battery charging and power consumption equipment power supply by the bavin electricity through Switching Power Supply.
The present invention directly applies to the low-voltage direct current system, and wind turbine generator voltage is higher than the power consumption equipment operating voltage, realizes the high voltage electric energy transmitting, has significantly reduced wind turbine generator loss and loss; Converting wind turbine generator high voltage electric energy to low voltage and direct current according to setting curve with high frequency switch mode can be to battery charging and power consumption equipment power supply; ACTIVE CONTROL wind turbine generator rotating speed makes wind turbine generator move according to maximum power state; Dynamic load resistance consumption high-voltage direct-current electric energy, the torque of adjustment wind turbine generator is with the safe operation of control wind turbine generator; Dynamically adjustment battery charging electric current and charging voltage are optimized the battery charging management, prolong batteries useful life; Can dispose the back-up source controller as required; Selecting civil power and bavin electricity is back-up source; Can automatically switch during the batteries power shortage civil power or bavin electricity through Switching Power Supply to the power supply of battery charging and power consumption equipment, greatly improved the power supply reliability of low-voltage DC power-supply system.
Description of drawings
Fig. 1 is the example structure sketch map;
Fig. 2 is the wind generating set structure sketch map.
Embodiment
Elaborate in the face of embodiments of the invention down: present embodiment provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
As shown in Figure 1; Present embodiment comprises: wind turbine generator 1, wind energy control power supply 2, batteries 3 and back-up source controller 4; Wherein: the three-phase output end of wind turbine generator 1 is connected to the input of wind energy control power supply 2; The output of wind energy control power supply 2 is connected to batteries 3; The input of back-up source controller 4 is connected with the output of batteries 3 and the output of back-up source 5 respectively, and the output of back-up source controller 4 is connected to batteries 3 through Switching Power Supply 6, and the load output of wind energy control power supply 2 is connected to power consumption equipment 7.
Described wind turbine generator 1 comprises: pylon 8, wind wheel 9, rotating shaft 10, taper pin axle 11, permanent magnet generator 12 and tail boom empennage 13; Wherein: wind wheel 9 is connected to the power shaft of permanent magnet generator 12 through rotating shaft 10; Tail boom empennage 13 is connected to the end of permanent magnet generator 12 through taper pin axle 11, and pylon 8 is fixedly set in the below of permanent magnet generator 12.
Described tail boom empennage 13 is an accordion structure.
The output voltage of described permanent magnet generator 12 is higher than the rated voltage of power consumption equipment 7, so that reduce permanent magnet generator 12 winding losses and power transmission loss.
Described wind energy control power supply 2 comprises: Power Conversion module 14, power control module 15 and control circuit module 16; Wherein: the three-phase output end of wind turbine generator 1 is connected to the input of Power Conversion module 14 and power control module 15; The output of Power Conversion module 14 is connected to batteries 3 and power consumption equipment 7, and control circuit module 16 is connected with power control module 15 with Power Conversion module 14 respectively.
Described back-up source controller 4 mainly comprises: storage battery detection module 17, civil power detection module 18, bavin electro-detection module 19 and switching controls module 20; Wherein: storage battery detection module 17 is connected to the control end of batteries 3; Civil power detection module 18 is connected with the three-phase output end of back-up source 5 respectively with bavin electro-detection module 19; The control end of switching controls module 20 is connected with the control end of back-up source 5; The input of switching controls module 20 is connected to the signal output part of storage battery detection module 17, civil power detection module 18 and bavin electro-detection module 19 respectively, and the output of switching controls module 20 is connected through the input of Switching Power Supply 6 with batteries 3.
Described back-up source 5 comprises: civil power 21 and diesel engine generator 22;
Present embodiment carries out work in the following manner:
The wind energy transformation that wind turbine generator 1 is caught wind wheel 9 is that kinetic energy directly drives permanent magnet generator 12; Permanent magnet generator 12 is converted into kinetic energy that voltage magnitude is variable, the high voltage AC energy of changeable frequency; Wind energy control power supply 2 is converted into the low voltage and direct current that meets batteries 3 characteristics with the high voltage AC energy can be to batteries 3 chargings and power consumption equipment 7 power supplies, ACTIVE CONTROL wind turbine generator 1 running status simultaneously.When wind speed was rolled over inclined to one side wind speed less than tail boom empennage 13, wind wheel 9 can be automatically to wind; When wind speed was rolled over inclined to one side wind speed greater than tail boom empennage 13, wind wheel 9 departed from wind direction gradually and reduces front face area, restriction wind-force unit power output and rotating speed.Permanent magnet generator 12 is directly driven by wind wheel 9, and the wind energy transformation that wind wheel 9 is caught is that voltage magnitude is variable, the three-phase alternating current electric energy of changeable frequency;
Then; Power Conversion module 14 is converted into the high-voltage direct-current electric energy with the three-phase alternating current electric energy that wind turbine generator 1 produces earlier; According to 14 operations of setting curve power controlling conversion module, the high-voltage direct-current electric energy is converted into the low voltage and direct current ability that meets batteries 3 characteristics by control circuit module 16, through adjustment wind turbine generator 1 power output ACTIVE CONTROL wind turbine generator 1 rotating speed through high frequency switch mode; Realize maximal power tracing, realize batteries 3 management of charging and discharging simultaneously; Power control module 15 is converted into the high-voltage direct-current electric energy with the three-phase alternating current electric energy that wind turbine generator 1 produces earlier; By 15 operations of control circuit module 16 power controlling control modules; Mode through dynamic load resistance consumes the high-voltage direct-current electric energy, and 1 torque of adjustment wind turbine generator is with 1 safe operation of control wind turbine generator; Control circuit module 16 is accomplished controlled function, realizes the normal operation of each functional module;
With diesel engine generator and civil power back-up source 5 as wind generator system; When batteries 3 power shortages; Storage battery detection module 17 detects batteries 3 voltages, when batteries 3 voltages are lower than setting voltage, if the civil power that civil power detection module 18 detects in the back-up source 5 is supplied with normal; Then switching controls module 20 is batteries 3 chargings and power consumption equipment 7 power supplies by civil power through Switching Power Supply 6 with the civil power incision; If civil power detection module 18 detection city electrical anomalies; Then switching controls module 20 will start the diesel engine generator in the back-up source 5 automatically; If the bavin electricity that bavin electro-detection module 19 detects in the back-up source 5 is supplied with normal; Then switching controls module 20 is gone into the bavin TURP, is batteries 3 chargings and power consumption equipment 7 power supplies by the bavin electricity through Switching Power Supply 6.
Claims (3)
1. wind power generation system for low-voltage DC power supply; It is characterized in that; Comprise: wind turbine generator, wind energy control power supply, batteries and back-up source controller; Wherein: the three-phase output end of wind turbine generator is connected to the input of wind energy control power supply, and the output of wind energy control power supply is connected to batteries, and the input of back-up source controller is connected with the output of batteries and the output of back-up source respectively; The output of back-up source controller is connected to batteries through Switching Power Supply, and the load output of wind energy control power supply is connected to power consumption equipment;
Described wind turbine generator comprises: pylon, wind wheel, rotating shaft, taper pin axle, permanent magnet generator and tail boom empennage; Wherein: wind wheel is connected to the power shaft of permanent magnet generator through rotating shaft; The tail boom empennage is connected to the end of permanent magnet generator through the taper pin axle, and pylon is fixedly set in the below of permanent magnet generator;
The output voltage of described permanent magnet generator is higher than the rated voltage of power consumption equipment, so that reduce permanent magnet generator winding loss and power transmission loss;
Described wind energy control power supply comprises: Power Conversion module, power control module and control circuit module; Wherein: the three-phase output end of wind turbine generator is connected to the input of Power Conversion module and power control module; The output of Power Conversion module is connected to batteries and power consumption equipment, and control circuit module is connected with power control module with the Power Conversion module respectively; Described Power Conversion module is converted into the high-voltage direct-current electric energy with the three-phase alternating current electric energy that wind turbine generator produces earlier; Move according to setting curve power controlling conversion module by control circuit module; Through high frequency switch mode the high-voltage direct-current electric energy being converted into the low voltage and direct current that meets the batteries characteristic can; Through adjustment wind turbine generator power output ACTIVE CONTROL wind turbine generator rotating speed, realize maximal power tracing, realize the batteries management of charging and discharging simultaneously.
2. wind power generation system for low-voltage DC power supply according to claim 1 is characterized in that, described back-up source comprises: civil power and diesel engine generator.
3. wind power generation system for low-voltage DC power supply according to claim 1; It is characterized in that; Described back-up source controller comprises: storage battery detection module, civil power detection module, bavin electro-detection module and switching controls module; Wherein: the storage battery detection module is connected to the control end of batteries; The civil power detection module is connected with the three-phase output end of back-up source respectively with bavin electro-detection module; The control end of switching controls module is connected with the control end of back-up source, and the input of switching controls module is connected to the signal output part of storage battery detection module, civil power detection module and bavin electro-detection module respectively, and the output of switching controls module is connected with the input of batteries through Switching Power Supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009103047742A CN101604865B (en) | 2009-07-24 | 2009-07-24 | Wind power generation system for low-voltage DC power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009103047742A CN101604865B (en) | 2009-07-24 | 2009-07-24 | Wind power generation system for low-voltage DC power supply |
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| CN101604865A CN101604865A (en) | 2009-12-16 |
| CN101604865B true CN101604865B (en) | 2012-02-08 |
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| CN2009103047742A Expired - Fee Related CN101604865B (en) | 2009-07-24 | 2009-07-24 | Wind power generation system for low-voltage DC power supply |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118044A (en) * | 2009-12-30 | 2011-07-06 | 鸿富锦精密工业（深圳）有限公司 | Solar energy storage system and charging method thereof |
| CN101814769B (en) * | 2010-03-08 | 2012-06-27 | 北京凯华网联新能源技术有限公司 | Electricity supply system of wind and light commercial power complementary communication base station |
| CN102916453A (en) * | 2011-08-04 | 2013-02-06 | 上海狮虎能源科技发展有限公司 | Energy management control system |
| CN104485870A (en) * | 2014-11-18 | 2015-04-01 | 国网河南省电力公司南阳供电公司 | Wind and solar complementary power supply intelligent discharge system |
| CN104767263A (en) * | 2015-01-23 | 2015-07-08 | 曹进 | Energy-saving type electric vehicle charging station |
| CN107013415A (en) * | 2016-10-15 | 2017-08-04 | 祁尚坡 | A kind of Universal wind sail machine and generator |
| CN113328512A (en) * | 2021-05-24 | 2021-08-31 | 广东电网有限责任公司广州供电局 | Power supply system |
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| CN2717092Y (en) * | 2004-07-30 | 2005-08-10 | 青岛经济技术开发区创统科技发展有限公司 | Solar energy, wind power and diesel power generation and battery bank integrated AC power supply |
| CN2826811Y (en) * | 2005-08-10 | 2006-10-11 | 卢子清 | Highly effective super-low speed wind-power generator |
| CN101207360A (en) * | 2006-12-19 | 2008-06-25 | 新疆金风科技股份有限公司 | Megawatt level direct drive type speed-changing oar-changing constant frequency wind generator set |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2717092Y (en) * | 2004-07-30 | 2005-08-10 | 青岛经济技术开发区创统科技发展有限公司 | Solar energy, wind power and diesel power generation and battery bank integrated AC power supply |
| CN2826811Y (en) * | 2005-08-10 | 2006-10-11 | 卢子清 | Highly effective super-low speed wind-power generator |
| CN101207360A (en) * | 2006-12-19 | 2008-06-25 | 新疆金风科技股份有限公司 | Megawatt level direct drive type speed-changing oar-changing constant frequency wind generator set |
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Address after: 201611 Shanghai Songjiang District Chedun town stay Industry Road No. 202 Patentee after: SHANGHAI GHREPOWER GREEN ENERGY Co.,Ltd. Address before: 201108 Shanghai city Minhang District Yuanjiang Road No. 3883 Patentee before: SHANGHAI GHREPOWER GREEN ENERGY Co.,Ltd. |
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