CN203895991U - Wind power generation grid-connected system - Google Patents
Wind power generation grid-connected system Download PDFInfo
- Publication number
- CN203895991U CN203895991U CN201420189090.9U CN201420189090U CN203895991U CN 203895991 U CN203895991 U CN 203895991U CN 201420189090 U CN201420189090 U CN 201420189090U CN 203895991 U CN203895991 U CN 203895991U
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- China
- Prior art keywords
- wind
- circuit
- magnet motor
- wind power
- storage battery
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- Expired - Fee Related
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- 238000010248 power generation Methods 0.000 title abstract description 6
- 239000003990 capacitor Substances 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 abstract 3
- 238000004146 energy storage Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 1
- 238000003869 coulometry Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
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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
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The utility model provides a wind power generation grid-connected system, comprising an anemoscope, an anemometer, a windmill wing, a windmill rotor, a differential permanent magnet motor connected to the windmill rotor through an increaser, a rectification circuit, an inversion circuit, a standby generator, a super capacitor set, a storage battery, a charging circuit, a discharging circuit, and a controller. The controller is connected with the anemoscope, the anemometer, the differential permanent magnet motor, grids, the charging circuit, the discharging circuit and the super capacitor set. The wind power generation grid-connected system is additionally provided with the supper capacitor set, the storage battery, the charging circuit and the discharging circuit, so that the wind power generation grid-connected system can generate power to be supplied to the grids in shortage of electric energy and store electric energy based on the load condition, thereby improving electric energy utilization rate of a wind generator system. In addition, the application range of the wind generator system is expanded and great economic benefits are provided for users.
Description
Technical field
The utility model relates to wind power generation field, particularly a kind of wind power-generating grid-connected system.
Background technology
The regenerative resources such as wind energy, solar energy, biomass energy are subject to the impact of natural conditions, have intermittence, randomness, uneven slip, make their importing can increase the weight of the power fluctuation of electric power system, affect the stable operation of system.Domestic wind-powered electricity generation is explosion type development at present, and ten million multikilowatt wind-powered electricity generation base is constantly built up, and wind-electricity integration is still global problem so far.Promoting distributing rationally of regenerative resource is one of main purpose of development intelligent grid, and following intelligent grid should adapt to the concentrated access of large-scale power supply, also will adapt to the distributing access of all kinds of regenerative resources.
The coordinated development of regenerative resource and intelligent grid be unable to do without the support of energy storage link, energy storage technology is one of important step building at present intelligent grid, the key of energy storage technology is not simple store electrical energy, its core is when energy storage, energy storage where, with which kind of speed release etc., and collect and discharge the replacement frequency of electric energy two states.Various energy storage technologies there are differences aspect energy, power density, and its corresponding application also has larger difference, and domestic miniature wind power generation system there is no energy reserve link, i.e. no storage battery equipment at present.
Utility model content
The utility model, for above-mentioned deficiency, discloses a kind of wind power-generating grid-connected system, comprising:
Registering weather vane, it is used for measuring wind direction;
Anemometer, it is used for measuring wind;
Awe, it is made up of rotating shaft periphery extension number fin in the same way, and is supported pivot joint collection wind unit by support bar, and described awe radius is 8～10 meters, and awe is spill, and spill fin wind gathering ability is strong;
Wind mill rotor, it is connected with described awe, is connected with the booster engine for power speedup on it;
Differential permanent-magnet motor: it is connected to described wind mill rotor by described booster engine;
Rectification circuit, its input is connected with the output of described differential permanent-magnet motor;
Inverter circuit, its input is connected with the output of described rectification circuit, and output is connected with electrical network;
Spare engine, it is connected with described differential permanent-magnet motor, receives the power dividing of described differential permanent-magnet motor;
Bank of super capacitors: it is connected with described spare engine, described bank of super capacitors is that multiple capacitor's seriess connect;
Storage battery: it is connected with described bank of super capacitors;
Charging circuit, its one end is connected with described storage battery, and the other end is connected with described electrical network;
Discharge circuit, its one end is connected with described storage battery, and the other end is connected with described electrical network;
Controller, it is connected with described registering weather vane, described anemometer, described differential Permanent Magnet and Electric, described electrical network, described charging circuit and described discharge circuit and described bank of super capacitors.
Preferred version is: described awe radius is 8～10 meters.
Preferred version is: described bank of super capacitors is that multiple capacitor's seriess connect.
Preferred version is: the fin of described awe is spill.
The utility model has added bank of super capacitors in wind power-generating grid-connected system, storage battery, discharge circuit and charging circuit, wind power-generating grid-connected system is generated electricity and can when electric energy is in short supply, supply with electrical network and according to loading condition, electric energy be stored, thereby improve the utilization rate of electrical of wind generator system, expand its application surface, for user brings larger economic benefit.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail, as shown in Figure 1, the utility model comprises: comprising:
Registering weather vane, it is used for measuring wind direction;
Anemometer, it is used for measuring wind;
Awe, it is made up of rotating shaft periphery extension number fin in the same way, and is supported pivot joint collection wind unit by support bar;
Wind mill rotor, it is connected with described awe, is connected with the booster engine for power speedup on it;
Differential permanent-magnet motor: it is connected to described wind mill rotor by described booster engine;
Rectification circuit, its input is connected with the output of described differential permanent-magnet motor, rectification circuit can adopt the uncontrollable rectification circuit of three-phase, for more stable efficient direct current electricity can be provided, the uncontrollable rectification circuit of three-phase rear end can be connected to DC/DC translation circuit, as BOOST circuit etc., unsettled frequency alternating current is converted into direct current by the uncontrollable rectification circuit of three-phase, and being transported to the low-pressure end of BOOST circuit, low pressure and unsettled direct current energy are converted into stable high voltage electric energy by BOOST circuit;
Inverter circuit, its input is connected with the output of described rectification circuit, and output is connected with electrical network, and inverter circuit is converted to direct voltage the stable alternating voltage that is applicable to load and electrical network use again;
Stand-by generator, it is connected with described differential permanent-magnet motor, receives the power dividing of described differential permanent-magnet motor;
Bank of super capacitors: it is connected with described stand-by generator;
Storage battery: it is connected with described bank of super capacitors;
Charging circuit, its one end is connected with described storage battery, and the other end is connected with described electrical network;
Discharge circuit, its one end is connected with described storage battery, and the other end is connected with described electrical network;
Controller, it is connected with described registering weather vane, described anemometer, described differential Permanent Magnet and Electric, described electrical network, described charging circuit and described discharge circuit and described bank of super capacitors.
Utilize the wind power-generating grid-connected method of the utility model, comprise the following steps:
Step 1, measure wind direction, measure wind speed by anemometer by registering weather vane;
Step 2, the wind direction parameter that described registering weather vane is recorded are input in controller, controller calculates wind direction parameter, and adjust pulp distance varying mechanism according to result of calculation, to adjust the angle of awe, make awe in the maximized position of Wind Power Utilization;
Step 3, the wind speed parameter that described anemometer is recorded are also input in controller, controller is according to the theoretical power output of the wind mill rotor of wind direction parameter and the drive of wind speed calculation of parameter awe, and compare with real output, if both differences are in the scope of predetermined value, turn to step 4, if both differences outside the scope of predetermined value, turn to execution step two, readjust the angle of awe, and registering weather vane and anemometer are carried out to Performance Detection;
Step 4, the power output of wind mill rotor is sent to booster engine, be passed to differential permanent-magnet motor by booster engine again, differential permanent-magnet motor is converted into stable high voltage electric energy by connected rectification circuit by low pressure and unsettled direct current energy, then by inverter circuit, direct voltage is converted to again to the stable alternating voltage that is applicable to load and electrical network use, finally electric energy is connected to the grid.In the time that the power output of wind mill rotor is greater than the rated power of differential permanent-magnet motor, controlled by controller, the box of tricks that the power output of wind mill rotor is entered to differential permanent-magnet motor carries out power dividing, the part that exceeds rated power is branched to stand-by generator, and the electric energy that stand-by generator sends exports to by multiple ultracapacitors and connects in the bank of super capacitors forming; If when the power output of wind mill rotor is less than the rated power of differential permanent-magnet motor, controlled by controller, the power output of the power output of wind mill rotor and ultracapacitor is input in differential permanent-magnet motor jointly, wherein, the power output sum of the power output of described wind mill rotor and ultracapacitor equals the rated power of described differential permanent-magnet motor;
Step 5, detect the electric weight in bank of super capacitors by coulometric detector, in the time that electric weight is worth higher than a height, electric weight in bank of super capacitors is transferred in storage battery, during controller is connected to the grid the electric energy of storage battery by discharge circuit, in the time of electrical network electric energy surplus, controller is charged to the electric energy of grid excess in storage battery by charging circuit.
Claims (4)
1. a wind power-generating grid-connected system, is characterized in that, comprising:
Registering weather vane, it is used for measuring wind direction;
Anemometer, it is used for measuring wind;
Awe, it is made up of rotating shaft periphery extension number fin in the same way, and is supported pivot joint collection wind unit by support bar;
Wind mill rotor, it is connected with described awe, is connected with the booster engine for power speedup on it;
Differential permanent-magnet motor: it is connected to described wind mill rotor by described booster engine;
Rectification circuit, its input is connected with the output of described differential permanent-magnet motor;
Inverter circuit, its input is connected with the output of described rectification circuit, and output is connected with electrical network;
Stand-by generator, it is connected with described differential permanent-magnet motor, receives the power dividing of described differential permanent-magnet motor;
Bank of super capacitors, it is connected with described stand-by generator;
Storage battery, it is connected with described bank of super capacitors;
Charging circuit, its one end is connected with described storage battery, and the other end is connected with described electrical network;
Discharge circuit, its one end is connected with described storage battery, and the other end is connected with described electrical network;
Controller, it is connected with described registering weather vane, described anemometer, described differential Permanent Magnet and Electric, described electrical network, described charging circuit and described discharge circuit and described bank of super capacitors.
2. wind power-generating grid-connected system according to claim 1, is characterized in that, described awe radius is 8～10 meters.
3. wind power-generating grid-connected system according to claim 1, is characterized in that, described bank of super capacitors is that multiple capacitor's seriess connect.
4. wind power-generating grid-connected system according to claim 1, is characterized in that, the fin of described awe is spill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189090.9U CN203895991U (en) | 2014-04-17 | 2014-04-17 | Wind power generation grid-connected system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420189090.9U CN203895991U (en) | 2014-04-17 | 2014-04-17 | Wind power generation grid-connected system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895991U true CN203895991U (en) | 2014-10-22 |
Family
ID=51722347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420189090.9U Expired - Fee Related CN203895991U (en) | 2014-04-17 | 2014-04-17 | Wind power generation grid-connected system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203895991U (en) |
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2014
- 2014-04-17 CN CN201420189090.9U patent/CN203895991U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20180417 |