CN202108663U - Alternating current variable-pitch control system - Google Patents

Alternating current variable-pitch control system Download PDF

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Publication number
CN202108663U
CN202108663U CN2011201970223U CN201120197022U CN202108663U CN 202108663 U CN202108663 U CN 202108663U CN 2011201970223 U CN2011201970223 U CN 2011201970223U CN 201120197022 U CN201120197022 U CN 201120197022U CN 202108663 U CN202108663 U CN 202108663U
Authority
CN
China
Prior art keywords
driver
contactor
alternating current
control system
input end
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.)
Expired - Lifetime
Application number
CN2011201970223U
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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
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Filing date
Publication date
Application filed by Reenergy Electric Suzhou Co Ltd filed Critical Reenergy Electric Suzhou Co Ltd
Priority to CN2011201970223U priority Critical patent/CN202108663U/en
Application granted granted Critical
Publication of CN202108663U publication Critical patent/CN202108663U/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 utility model discloses a safe and stable alternating current variable-pitch control system, which comprises 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 gird through an output end of the a first contactor, the first contactor is in parallel connection with a second contactor, the output end of the first contactor is connected with an input end of a resistor, and an output end of the resistor is connected with the main power supply input end of the driver after connected with an output end of the second contactor. The alternating current variable-pitch control system further comprises a backup battery which is connected with a battery input end of the driver. The alternating current variable-pitch control system can collect pitch urgently through the backup battery after the power gird is powered off, thereby guaranteeing safety of the alternating current variable-pitch control system.

Description

A kind of interchange variable blade control system
Technical field
The utility model relates to a kind of interchange variable blade control system, is 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 utility model has proposed a kind of interchange variable blade control system in order to solve this technical problem.
The purpose of the utility model 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.
The beneficial effect of the utility model 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 the electrical principle schematic representation of the utility model.
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 utility model still has numerous embodiments, and all employing equivalents or equivalent transformation and all technological schemes of forming all drop within the protection domain of the utility model.

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.
CN2011201970223U 2011-06-13 2011-06-13 Alternating current variable-pitch control system Expired - Lifetime CN202108663U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011201970223U CN202108663U (en) 2011-06-13 2011-06-13 Alternating current variable-pitch control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011201970223U CN202108663U (en) 2011-06-13 2011-06-13 Alternating current variable-pitch control system

Publications (1)

Publication Number Publication Date
CN202108663U true CN202108663U (en) 2012-01-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011201970223U Expired - Lifetime CN202108663U (en) 2011-06-13 2011-06-13 Alternating current variable-pitch control system

Country Status (1)

Country Link
CN (1) CN202108663U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828906A (en) * 2011-06-13 2012-12-19 苏州能健电气有限公司 Alternating current variable pitch control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102828906A (en) * 2011-06-13 2012-12-19 苏州能健电气有限公司 Alternating current variable pitch control system

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GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20120111

CX01 Expiry of patent term