CN200944540Y - Super capacitor energy-storage device for blade pitch control system of wind-driven generator - Google Patents
Super capacitor energy-storage device for blade pitch control system of wind-driven generator Download PDFInfo
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- CN200944540Y CN200944540Y CNU2006201181471U CN200620118147U CN200944540Y CN 200944540 Y CN200944540 Y CN 200944540Y CN U2006201181471 U CNU2006201181471 U CN U2006201181471U CN 200620118147 U CN200620118147 U CN 200620118147U CN 200944540 Y CN200944540 Y CN 200944540Y
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- storage device
- super capacitor
- charger
- control system
- energy storage
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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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A super capacitor energy-storage device for blade pitch control system of wind-driven generator comprises a commutator or a charger, a charging soft starting device, a super capacitance and a protection circuit, and is characterized in that the energy storage device is designed for supplying power for wind force generator changeable paddle distance control system, and adopts the super capacitance or a composite structure combining parallel the super capacitance and a storage battery as the energy storing device. The capacity of the capacitance may be a plurality of farad to a plurality of hundred farad, the discharging current of which can reach a plurality of thousand ampere and the rating voltage of which is ranged from several volt to a plurality of hundred volt ,even thousands of volt. The commutator or the charger adopts AC-DC or DC-DC conversion art to charge for capacitor by reasonable arrangement of parameter variation such as capacity and voltage, having functions of output over-current protection and output over-voltage protection. The charging soft starting device is arranged between the commutator or the charger and the super capacitance. With the super capacitance, the instant discharging power of the energy storage device is ten times higher than the storage battery, which has the advantages of high charging and discharging efficiency, no maintenance and preservation, life-span of more than ten years, wide working temperature range and great reduction of size and weight.
Description
Technical field
The utility model relates to a kind of super capacitor energy storage device for the control system for variable pitch of wind-driven generator power supply, belongs to after civil power stops, and the energy storage device of certain work capacity need be provided for the large-scale wind driven generator variable-pitch control system.
Background technology
The variable-pitch control system of wind-driven generator at civil power just often relies on mains-supplied, the pitch-variable system of control wind-driven generator.
In order to guarantee that after stopping when civil power, the variable-pitch control system of wind-driven generator still can be worked a period of time, need provide the energy storage device of certain work capacity for system.The size of energy storage device energy stored, definite according to the power and the standby time of power consumption equipment.
Have some energy storage devices to adopt storage batterys etc. as energy storage device, its major defect is that weight is heavier, volume is big, cycle life is short, maintenance cost is higher, and efficiency for charge-discharge is low simultaneously, working temperature is required also strict.
Super capacitor is a kind of novel energy-storing element that immediate development is got up, and it promptly has very high discharge power as electrostatic capacitance, has very big charge storage capacity as battery again, makes the binding site that has found a best between these two kinds of elements.Because its flash-over characteristic and electrostatic capacitance are more approaching, so still be referred to as " electric capacity ".The title of present ultracapacitor is disunity still, ultracapacitor (Supercapacitor) is arranged, titles such as ultra-capacitor (Ultracapacitor), electrochemical capacitor (E1ectrochemical Capacitor), capacitor with super capacity, the double charge layer capacitor of being called (electricDouble-Layer Capacitor is also arranged, EDLC) or double electric layer capacitor (Double LayerCapacitor, DLC).
Above title is the unified super capacitor that is called in this explanation.
Summary of the invention
Task of the present utility model is that the variable-pitch control system for wind-driven generator provides a kind of device that overcomes the employing super capacitor energy-storage of above-mentioned deficiency, and it comprises rectifier or charger, charging soft starting device, super capacitor; This energy storage device adopts super capacitor, perhaps adopts the composite construction of super capacitor and storage battery parallel connection, capacitance can from several farads to the hundreds of farad, discharging current can reach several kiloamperes, rated voltage is from a few Fu Keda hundreds ofs even go up kilovolt; Rectifier or charger adopt AC-DC or DC-DC converter technique, change reasonable disposition according to parameters such as capacitance, voltages, are the capacitor charging, possess functions such as output overcurrent protection, output over-voltage protection; The charging soft starting device is connected between rectifier or charger and the super capacitor.
Above-mentioned energy storage device adopts super capacitor, or adopts the composite power source of super capacitor and storage battery parallel connection, and the kind of storage battery no matter.
The super capacitor amount of capacity of above-mentioned energy storage device and rated voltage were determined according to the power and the standby time of variable-pitch control system.
The rectifier of above-mentioned energy storage device or charger adopt AC-DC or DC-DC converter technique, change reasonable disposition according to parameters such as capacitance, voltages, are the capacitor charging, possess functions such as output overcurrent protection, output over-voltage protection.
Be added with the charging soft starting device between the rectifier of above-mentioned energy storage device or charger and the super capacitor.
Beneficial effect: behind the mains failure, variable-pitch control system changes the power failure control model over to, at this moment by the super capacitor in the energy storage device for system provides certain work capacity, system can not quit work suddenly.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
With reference to Fig. 1, embodiment of the present utility model is made up of following device and circuit: rectifier or charger 1, charging soft starting device 2, super capacitor 3, variable-pitch control system 4.Its course of work is, alternating current is the super capacitor charging through rectifier or charger, the direct current that becomes constant voltage, when initial, through the charging of charging soft starting device.This is because the direct voltage and the super capacitor voltage difference of rectifier or charger output are bigger, for the restriction charging current, avoids circuit devcie is damaged.
Civil power is the variable-pitch control system operate as normal just often, behind the mains failure, variable-pitch control system changes the power failure control model over to, variable-pitch control system still needs work a period of time, at this moment provides certain work capacity by the super capacitor in the energy storage device for system.The size of energy storage device energy stored, definite according to the power and the standby time of power consumption equipment.
Beneficial effect
Behind the mains failure, variable-pitch control system changes the power failure control model over to, is system by the super capacitor in the energy storage device at this moment Certain work capacity is provided, makes the system can cut work.
Claims (1)
1, a kind of super capacitor energy storage device that is used for control system for variable pitch of wind-driven generator, comprise rectifier or charger, charging soft starting device, super capacitor, it is characterized in that: the energy storage device of this energy storage device is the composite power source of super capacitor or super capacitor and storage battery parallel connection, capacitance can be from several farads to the hundreds of farad, discharging current can reach several kiloamperes, and rated voltage can even go up kilovolt from a few Fu Keda hundreds ofs; Rectifier or charger adopt AD-DC or claim the DC-DC converter technique, change reasonable disposition according to capacitance, voltage parameter, are the capacitor charging, possess output overcurrent protection, output over-voltage defencive function; The charging soft starting device is connected between rectifier or charger and the super capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201181471U CN200944540Y (en) | 2006-06-02 | 2006-06-02 | Super capacitor energy-storage device for blade pitch control system of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201181471U CN200944540Y (en) | 2006-06-02 | 2006-06-02 | Super capacitor energy-storage device for blade pitch control system of wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200944540Y true CN200944540Y (en) | 2007-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201181471U Expired - Fee Related CN200944540Y (en) | 2006-06-02 | 2006-06-02 | Super capacitor energy-storage device for blade pitch control system of wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200944540Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522807A (en) * | 2011-12-09 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | Control power supply of pitch system of wind driven generator |
-
2006
- 2006-06-02 CN CNU2006201181471U patent/CN200944540Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522807A (en) * | 2011-12-09 | 2012-06-27 | 东方电气集团东方汽轮机有限公司 | Control power supply of pitch system of wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070905 Termination date: 20140602 |