CN102828906A - Alternating current variable pitch control system - Google Patents

Alternating current variable pitch control system Download PDF

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Publication number
CN102828906A
CN102828906A CN2011101573577A CN201110157357A CN102828906A CN 102828906 A CN102828906 A CN 102828906A CN 2011101573577 A CN2011101573577 A CN 2011101573577A CN 201110157357 A CN201110157357 A CN 201110157357A CN 102828906 A CN102828906 A CN 102828906A
Authority
CN
China
Prior art keywords
driver
contactor
alternating current
input end
control system
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
Application number
CN2011101573577A
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Chinese (zh)
Inventor
杨再名
傅建民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Reenergy Electric Suzhou Co Ltd
Original Assignee
Reenergy Electric Suzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Reenergy Electric Suzhou Co Ltd filed Critical Reenergy Electric Suzhou Co Ltd
Priority to CN2011101573577A priority Critical patent/CN102828906A/en
Publication of CN102828906A publication Critical patent/CN102828906A/en
Pending legal-status Critical Current

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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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

Abstract

The invention discloses a safe and stable alternating current variable pitch control system, comprising a driver. An output end of the driver is connected with a three-phase alternating current motor, a main power supply input end of the driver is connected with a power grid through an output end of a first contactor, the first contactor and a second contactor are connected in parallel, the output end of the first contactor is connected with an input end of a resister, after being connected with an output end of the second contactor, an output end of the resistor is connected with an input end of the driver main power supply. The system further comprises a backup battery which is connected with the input end of the driver. By the adoption of the system, emergency pitch control is realized through the backup power after the power grid is powered off, and the safety of the alternating current variable pitch system is ensured.

Description

A kind of interchange variable blade control system
Technical field
The present invention relates to a kind of interchange variable blade control system, be applied to the wind power technology field.
Background technique
At present, in exchanging variable blade control system, give driver, directly drive the AC motor operation, under the electric network power-fail situation, can not promptly put away the oars, make blade be in home through mains supply.Can make rotation speed of fan too high like this, cause blower fan to collapse or risk that blade damages.There is very big potential safety hazard in this concerning whole blower fan.
Summary of the invention
The present invention has proposed a kind of interchange variable blade control system in order to solve this technical problem.
The object of the invention will be achieved through following technological scheme:
A kind of interchange variable blade control system; Comprise driver; Said output end of driver is connected with a three phase alternating current motor, and the primary power supply input end of said driver is connected with the output terminal of electrical network through first contactor, and said first contactor is parallelly connected with second contactor; The output terminal of said first contactor is connected with the resistance input end; The resistance output terminal is connected the back and is connected with driver primary power supply input end with the output terminal of said second contactor, system also comprises a backup battery, and said backup battery is connected with the cell input terminal of driver.
Beneficial effect of the present invention is mainly reflected in: behind electric network power-fail, still can supply power to three phase alternating current motor through back-up power, thereby realize promptly putting away the oars, guarantee to exchange the safety of pitch-controlled system.
Description of drawings
Fig. 1 is an electrical principle schematic representation of the present invention.
Embodiment
A kind of interchange variable blade control system; As shown in Figure 1; Comprise driver 1A1, said driver 1A1 is provided with three output terminals A 1, A2, A3, and said three output terminals A 1, A2, A3 are connected with a three phase alternating current motor 12; Three primary power supply input end L1 of said driver 1A1, L2, L3 are connected with the output terminal of electrical network through the first contactor 1K1; The said first contactor 1K1 is parallelly connected with the second contactor 1K2, and three output terminals of the said first contactor 1K1 are connected with three resistance 1R1,1R2,1R3 input end respectively, and resistance 1R1,1R2,1R3 output terminal are connected the back and are connected with driver primary power supply input end UD with the output terminal of the said second contactor 1K2; System also comprises a backup battery 11, and said backup battery 11 is connected with the cell input terminal UD of driver.
Particularly; As shown in Figure 1, the electricity of electrical network arrives driver 1A1 from 1L1,1L2,1L3 through contactor 1K1,1K2, behind the primary power supply input end L1 of process driver 1A1, L2, the L3; Through output terminals A 1, A2, A3 three phase mains is exported again, to drive the running of three phase alternating current motor 12.Behind electric network power-fail, then can give driver 1A1 power supply by the backup battery that is connected with driver 1A1 11.Particularly, behind the electric network power-fail, backup battery 11 is given driver 1A1 power supply through the input end UD of the back-up power both positive and negative polarity of driver 1A1; The realization low voltage is passed through; If after 3 seconds, line voltage does not also recover, and then backup battery 11 gives three phase alternating current motor 12 power supplies after driver 1A1 inversion; Realize promptly putting away the oars with this, thus the safety of the system of assurance.
The present invention still has numerous embodiments, and all employing equivalents or equivalent transformation and all technological schemes of forming all drop within protection scope of the present invention.

Claims (1)

1. one kind exchanges variable blade control system; It is characterized in that: comprise driver; Said output end of driver is connected with a three phase alternating current motor, and the primary power supply input end of said driver is connected with the output terminal of electrical network through first contactor, and said first contactor is parallelly connected with second contactor; The output terminal of said first contactor is connected with the resistance input end; The resistance output terminal is connected the back and is connected with driver primary power supply input end with the output terminal of said second contactor, system also comprises a backup battery, and said backup battery is connected with the cell input terminal of driver.
CN2011101573577A 2011-06-13 2011-06-13 Alternating current variable pitch control system Pending CN102828906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011101573577A CN102828906A (en) 2011-06-13 2011-06-13 Alternating current variable pitch control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011101573577A CN102828906A (en) 2011-06-13 2011-06-13 Alternating current variable pitch control system

Publications (1)

Publication Number Publication Date
CN102828906A true CN102828906A (en) 2012-12-19

Family

ID=47332162

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011101573577A Pending CN102828906A (en) 2011-06-13 2011-06-13 Alternating current variable pitch control system

Country Status (1)

Country Link
CN (1) CN102828906A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852768A (en) * 2020-07-13 2020-10-30 青岛池华电气科技有限公司 System and method for controlling power grid side autonomous emergency feathering of variable pitch system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090155075A1 (en) * 2007-12-14 2009-06-18 Industrial Technology Research Institute Blade pitch driving apparatus for wind driven generator
CN101790639A (en) * 2007-05-04 2010-07-28 英格蒂姆能源有限公司 The pitch control system and the method that are used for wind turbine
CN101915206A (en) * 2010-08-09 2010-12-15 重庆科凯前卫风电设备有限责任公司 Variable pitch control unit and device thereof for wind driven generator
CN102011693A (en) * 2010-12-10 2011-04-13 苏州能健电气有限公司 Wind power paddle changing control system
CN202108663U (en) * 2011-06-13 2012-01-11 苏州能健电气有限公司 Alternating current variable-pitch control system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101790639A (en) * 2007-05-04 2010-07-28 英格蒂姆能源有限公司 The pitch control system and the method that are used for wind turbine
US20090155075A1 (en) * 2007-12-14 2009-06-18 Industrial Technology Research Institute Blade pitch driving apparatus for wind driven generator
CN101915206A (en) * 2010-08-09 2010-12-15 重庆科凯前卫风电设备有限责任公司 Variable pitch control unit and device thereof for wind driven generator
CN102011693A (en) * 2010-12-10 2011-04-13 苏州能健电气有限公司 Wind power paddle changing control system
CN202108663U (en) * 2011-06-13 2012-01-11 苏州能健电气有限公司 Alternating current variable-pitch control system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111852768A (en) * 2020-07-13 2020-10-30 青岛池华电气科技有限公司 System and method for controlling power grid side autonomous emergency feathering of variable pitch system
CN111852768B (en) * 2020-07-13 2024-02-27 青岛池华电气科技有限公司 Autonomous emergency feathering control system and method for power grid side of pitch control system

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Application publication date: 20121219