CN106523302B - A kind of device for fan blade ice-melt - Google Patents
A kind of device for fan blade ice-melt Download PDFInfo
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- CN106523302B CN106523302B CN201610972569.3A CN201610972569A CN106523302B CN 106523302 B CN106523302 B CN 106523302B CN 201610972569 A CN201610972569 A CN 201610972569A CN 106523302 B CN106523302 B CN 106523302B
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- Prior art keywords
- blower
- bus
- battery
- energy
- deicing
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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
-
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
- Wind Motors (AREA)
Abstract
A kind of device for fan blade ice-melt is made of blower, blower side bidirectional converter, battery deicing device and load.Blower is connected on bus through blower side bidirectional converter；The blower side bidirectional converter is composed in series by blower rectification AC/DC current transformer (1) and DC/AC inverter (2), battery is connected between blower rectification AC/DC current transformer (1) and DC/AC inverter (2), and deicing device and load are connected on bus.
Description
Technical field
The present invention relates to a kind of equipment suitable for fan blade ice-melt.
Background technique
In recent years, wind-powered electricity generation is as most competitive one of new energy, and at home and abroad field of new energy generation is by more next
More extensive concern.THE WIND ENERGY RESOURCES IN CHINA is extremely abundant, about 1,000,000,000 kW of the wind energy content that can be developed and used, wherein land wind energy
About 2.53 hundred million kW of reserves (liftoff 10m height material computation), marine about 7.5 hundred million kW of wind energy content that can be developed and utilized.
Due to the continuous expansion ripe day by day and market scale of wind generating technology, construction cost gradually decreases, adds
Support in upper national policy, China's wind-power electricity generation cause show the situation of high speed development.
Wind generator system has the characteristics of off-grid operation, that is to say, that when the grid fails, blower still can be negative
Offer electric energy is provided and guarantees its normal work.Winter grid power transmission route icing can cause down the problems such as tower, broken string, when serious
It so that grid disconnection operation is paralysed, the safe and stable operation of power grid is caused to seriously endanger.Power grid paralysis will lead to
Original ice melting system can not start, and transmission line icing problem is caused more to deteriorate.The presence of wind generator system at this time can be
Line ice-melting plays a role.South China in 2008 meets with rare especially big ice damage, and Hunan, Guizhou, Jiangxi etc. save power grid
It is impaired serious, cause large-area power-cuts.In recent years, southern province winter repeatedly meets with ice damage, and can wind-power electricity generation be stablized at this time
Off-grid operation becomes particularly important.
However since winter temperature is lower, especially In Southwest China, the ground such as Guizhou, Yunnan and Chongqing of Sichuan, due to air
Humidity is larger, therefore blade of wind-driven generator icing easy to form, and often wind-resources preferable season in winter.Due to wind
The key of power generating efficiency is fan blade, and the quality of stability and performance directly influences the conversion of wind energy, therefore wind
Machine blade de-icing technology becomes one of important technology point of wind generating technology, conventional wind power generation blade ice melting system topology
As shown in Figure 1.Battery is connected on bus via current transformer 3, and blower deicing device is connected directly between on bus, when wind-force provides
When the scarcity of source, battery discharges electrical energy drive deicing device, carries out blower ice-melt work.
Operation schematic diagram of the ice melting system of tradition wind electricity blade shown in Fig. 1 under different operating conditions is as shown in Figure 2.Its is worked
Journey is represented by：Wind-driven generator converts wind energy into electric energy, and blower output is alternating current.By rectifying link AC/DC unsteady flow
The alternating current that blower generates is converted to constant DC power supply by device (1), will be straight using inversion link DC/AC current transformer (2)
It is load supplying that galvanic electricity, which is converted to same press with the alternating current of frequency of power grid,.When wind energy surplus, extra electric energy is through current transformer
3, which are converted to direct current energy, is stored in battery as shown in Figure 2 a；The electric energy that will be stored in battery when wind energy scarcity
It discharges, is transported to for maintaining the normal work of load in ac bus, as shown in Figure 2 b through current transformer 3.When fan blade covers
When ice, deicing device provides electric energy by ac bus as a heat load starting operation.As can be seen that when wind energy is deficient
Reactive volt-ampere hour, blower side bidirectional converter (current transformer 1 and current transformer 2) stop working, and the current transformer for only relying on battery side can be
Electric energy needed for load and deicing device provide, the slightly aobvious redundancy of system topological.
Summary of the invention
The purpose of the present invention simplifies the redundancy in existing wind electricity blade deicing device, so that maintaining deicing device original
Under conditions of function, system cost is reduced, proposes a kind of device for fan blade ice-melt.
The present invention is made of blower, blower side bidirectional converter, battery, deicing device and load.Blower is through blower side
Bidirectional converter is connected on bus.The blower side bidirectional converter is by blower rectification AC/DC current transformer (1) and DC/AC
Current transformer (2) is composed in series.Battery is connected between blower rectification AC/DC current transformer (1) and DC/AC current transformer (2).Ice-melt
Device and load are connected directly between on bus.
The current transformer (3) positioned at battery side is omitted in the present invention on the basis of conventional fan blade deicing device, will
Battery is connected between the bidirectional converter of blower side, is realized from blower side bidirectional converter and is converted wind resource to exchange mother
The function of line feed and charge to battery.Electric energy is provided for deicing device by ac bus again, removes fan blade icing, i.e.,
It is able to achieve function identical with conventional fan blade ice melting system.
When wind resource surplus, the extra electric energy of generation is stored in battery, and blower rectifies AC/DC current transformer at this time
(1) the direct current a part generated flows into DC/AC current transformer (2), and it is load supplying that ac bus is flowed into after transformation of electrical energy；One
Part flows into battery and stores.If fan blade icing at this time, deicing device will be melted by ac bus for electrically activating
Ice work.
When wind resource scarcity, if fan blade icing, battery send the electric energy of storage through DC/AC current transformer (2)
Enter ac bus for deicing device power supply, carries out blade ice-melt.
Effect of the invention：
1) relative to conventional fan blade deicing device, the present invention by battery connect two bidirectional converters of blower it
Between, the current transformer (3) for separately existing in battery side is omitted, reduces device redundancey, reduces installation cost.
2) since present invention omits a current transformers being connected on ac bus (3), so that the control strategy of system
Become simpler, while reducing the introducing of a current transformer, reduces system harmonics.
Detailed description of the invention
Fig. 1 is traditional wind electricity blade ice melting system topological diagram；
Fig. 2 is operation schematic diagram of traditional wind electricity blade ice melting system under different operating conditions；
Fig. 3 is wind electricity blade ice melting system topological diagram of the present invention；
Fig. 4 is operation schematic diagram of the wind electricity blade ice melting system of the present invention under different operating conditions.
Specific embodiment
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Present invention eliminates the current transformers (3) that battery is connected in existing deicing device, and battery is connected to blower
Between bidirectional converter, the redundancy of device is simplified on the basis of normally completing blower ice-melt and working, has saved system cost.
As shown in figure 3, the present invention is made of blower, blower side bidirectional converter, battery, deicing device and load.Wind
Machine is connected on bus through blower side bidirectional converter.The blower side bidirectional converter rectifies AC/DC current transformer 1 by blower
It is formed with DC/AC inverter 2, battery is connected between blower rectification AC/DC current transformer 1 and DC/AC inverter 2, ice-melt dress
It sets and load is connected directly between on bus.
The course of work of the wind electricity blade ice melting system of the present invention under different operating conditions is as shown in Figure 4.
When wind energy surplus, as shown in fig. 4 a.Blower converts wind energy into AC energy, and blower rectifies AC/DC unsteady flow
AC energy is converted to as rectifier and exports constant direct current by device 1.Blower rectifies the direct current that AC/DC current transformer 1 exports
Electric energy a part is sent into DC/AC inverter 2 and is converted to power grid with the alternating current pressed with frequency, and being sent into ac bus is that load supplies
Electricity；A part is sent into battery storage.If fan blade icing at this time, starting electricity is provided for deicing device by ac bus
Source is blade deicing.
When wind energy scarcity, as shown in Figure 4 b, the electric energy release stored in battery is converted to through DC/AC inverter 2
With power grid with pressure with the alternating current of frequency, feeding ac bus is load supplying.If fan blade icing at this time, by then by exchanging
Bus provides startup power supply for deicing device, is blade deicing.Electric energy used on ac bus is generated by battery at this time,
Only blower rectification AC/DC current transformer 1 is not involved in work in entire deicing processes.And under same operating condition, conventional fan leaf
Blower rectification AC/DC current transformer 1 and DC/AC inverter 2 are all not involved in work in piece deicing device, result in waste of resources.
Claims (1)
1. a kind of device suitable for fan blade ice-melt, the device by blower, blower side bidirectional converter, battery,
Deicing device and load composition；Blower is connected on bus through blower side bidirectional converter；The blower side bidirectional converter
It is composed in series by blower rectification AC/DC current transformer (1) and DC/AC inverter (2), battery is connected to blower rectification AC/DC and becomes
It flowing between device (1) and DC/AC inverter (2), deicing device and load are connected on bus,
It is characterized in that：The course of work of the device under different operating conditions is as follows：When wind energy surplus, blower is by wind energy
AC energy is converted to, blower rectifies AC/DC current transformer (1) as rectifier and AC energy is converted to the constant direct current of output
Electricity；Direct current energy a part feeding DC/AC inverter (2) of blower rectification AC/DC current transformer (1) output is converted to same with power grid
The alternating current with frequency is pressed, feeding ac bus is load supplying；Another part is sent into battery storage；If fan blade covers at this time
Ice then provides startup power supply by ac bus for deicing device, is blade deicing；When wind energy scarcity, stored in battery
Electric energy release, through DC/AC inverter (2) be converted to power grid with pressure with frequency alternating current be sent into ac bus for load supply
Electricity；If fan blade icing at this time, startup power supply is provided for deicing device by ac bus, is blade deicing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972569.3A CN106523302B (en) | 2016-11-01 | 2016-11-01 | A kind of device for fan blade ice-melt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610972569.3A CN106523302B (en) | 2016-11-01 | 2016-11-01 | A kind of device for fan blade ice-melt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523302A CN106523302A (en) | 2017-03-22 |
| CN106523302B true CN106523302B (en) | 2018-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610972569.3A Expired - Fee Related CN106523302B (en) | 2016-11-01 | 2016-11-01 | A kind of device for fan blade ice-melt |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114977250A (en) * | 2022-06-28 | 2022-08-30 | 中国矿业大学(北京) | Battery energy storage management system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496898A (en) * | 2011-11-16 | 2012-06-13 | 四川大学 | Bifunctional direct current ice melting apparatus based on voltage source type current converter and ice melting method thereof |
| CN202678969U (en) * | 2012-06-26 | 2013-01-16 | 上海工程技术大学 | Micro-grid power supply system of wind-driven generator |
| CN202718816U (en) * | 2012-05-29 | 2013-02-06 | 唐其敏 | Automatic anti-icing and de-icing device for fan blade |
| CN103855724A (en) * | 2014-03-31 | 2014-06-11 | 中船重工(重庆)海装风电设备有限公司 | Micro power grid system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8292579B2 (en) * | 2011-11-03 | 2012-10-23 | General Electric Company | Method and system for deicing wind turbine rotor blades with induced torque |
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2016
- 2016-11-01 CN CN201610972569.3A patent/CN106523302B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496898A (en) * | 2011-11-16 | 2012-06-13 | 四川大学 | Bifunctional direct current ice melting apparatus based on voltage source type current converter and ice melting method thereof |
| CN202718816U (en) * | 2012-05-29 | 2013-02-06 | 唐其敏 | Automatic anti-icing and de-icing device for fan blade |
| CN202678969U (en) * | 2012-06-26 | 2013-01-16 | 上海工程技术大学 | Micro-grid power supply system of wind-driven generator |
| CN103855724A (en) * | 2014-03-31 | 2014-06-11 | 中船重工(重庆)海装风电设备有限公司 | Micro power grid system |
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| CN106523302A (en) | 2017-03-22 |
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