CN203335327U - Paddle folding device of alternating-current variable paddle pitch control system - Google Patents
Paddle folding device of alternating-current variable paddle pitch control system Download PDFInfo
- Publication number
- CN203335327U CN203335327U CN2013204150691U CN201320415069U CN203335327U CN 203335327 U CN203335327 U CN 203335327U CN 2013204150691 U CN2013204150691 U CN 2013204150691U CN 201320415069 U CN201320415069 U CN 201320415069U CN 203335327 U CN203335327 U CN 203335327U
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- China
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- power source
- phase
- switching power
- paddle
- power supply
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- Withdrawn - After Issue
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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
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- Stopping Of Electric Motors (AREA)
Abstract
The utility model discloses a paddle folding device of an alternating-current variable paddle pitch control system. The paddle folding device of the alternating-current variable paddle pitch control system comprises a main power source, a load switch, an actuator, a three-phase alternating-current motor, a switching power source DC/DC, a back-up capacitor box, a three-phase switching power source AC/DC and a single-phase brake. The main power source, the load switch, the actuator and the three-phase alternating-current motor are sequentially connected. The switching power source DC/DC is respectively connected with the actuator and the single-phase brake. A first fuse protector is arranged between the switching power source DC/DC and the actuator. A second fuse protector is arranged between the switching power source DC/DC and the single-phase brake. The back-up capacitor box is connected between the switching power source DC/DC and the actuator through a diode. The input end of the three-phase switching power source AC/DC is connected with the main power source through a relay. The output end of the three-phase switching power source AC/DC is connected between the single-phase brake and the switching power source DC/DC. Due to the fact that the direct-current control power source is designed into two circuits, when one circuit breaks down, the power source is converted into the other circuit to conduct power supplying, and a power source system is safer. When a power grid is powered down, the three-phase alternating-current motor can still be powered by the back-up capacitor box, and therefore emergent paddle folding is achieved.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly a kind of device of putting away the oars that exchanges variable-pitch control system.
Background technique
At present, in alternating current variable-pitch control system, by mains supply, to driver, directly drive the AC motor operation, in the electric network power-fail situation, can not promptly put away the oars, make blade in home.Can make like this rotation speed of fan too high, cause blower fan to collapse or risk that blade damages.There is very large risk hidden danger in this concerning whole blower fan.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of device of putting away the oars of the interchange variable-pitch control system that can promptly put away the oars when grid cut-off or wind turbine break down.
The technological scheme that the utility model addresses the above problem is: a kind of device of putting away the oars that exchanges variable-pitch control system, comprise primary power supply, on-load switch, driver and three phase alternating current motor, primary power supply, on-load switch, driver, three phase alternating current motor is connected successively, it is characterized in that: also comprise switch power DC/DC, standby capacitor box and single-phase brake, switch power DC/DC respectively with driver, single-phase brake is connected, be provided with the first fus between switch power DC/DC and driver, be provided with the second fus between switch power DC/DC and single-phase brake, described standby capacitor box is connected between described switch power DC/DC and driver through diode.
The device of putting away the oars of described interchange variable-pitch control system also comprises threephase switch power supply AC/DC, and the input end of described threephase switch power supply AC/DC is connected with primary power supply through a relay, and output terminal is connected between single-phase brake and switch power DC/DC.
Exchange the variable-pitch control system device of promptly putting away the oars with respect to wind power generating set now, the utility model has following advantage:
1. after electric network power-fail, by the standby capacitor box, still can power to three phase alternating current motor, thereby realize promptly putting away the oars, guarantee to exchange the safety of pitch-controlled system;
2. when DC control supply adopts two-way design ，Dang mono-road to break down, change another road power supply into, make power-supply system safer, the cost increase is also little simultaneously.
The accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present utility model.
In figure: 1, primary power supply, 2, driver, 3, the standby capacitor box, 4, switch power DC/DC, 5, threephase switch power supply AC/DC, 6, three phase alternating current motor, 7, single-phase brake, 8, on-load switch, 9, the first fus, the 10, second fus, 11, diode, 12, diode, 13, relay.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises primary power supply 1, driver 2, standby capacitor box 3, switch power DC/DC4, threephase switch power supply AC/DC5, three phase alternating current motor 6, single-phase brake 7, on-load switch 8, the first fus 9, the second fus 10, diode 11, diode 12, relay 13.The input end L1 of described driver 2, L2, L3 is connected with primary power supply 1 by on-load switch 8, the output terminal U of described driver 2, V, W is connected with three phase alternating current motor 6, the output terminal L+ of described driver 2, L-is connected with switch power DC/DC4 by the first fus 9, described standby capacitor box 3 is connected between driver 2 and switch power DC/DC4 by diode 11 and diode 12, described single-phase brake 7 is connected with switch power DC/DC4 by the second fus 10, the input end L1 of described threephase switch power supply AC/DC5, L2, L3 is connected with primary power supply 1 through a relay 13, output terminal is connected between single-phase brake 7 and switch power DC/DC4.Described switch power DC/DC4 is input as DC600V, is output as DC24V; The output voltage of standby capacitor box 3 is DC600V.
Working principle of the present utility model is as follows: the Ac of primary power supply 1 output arrives driver 2 from A1.L1, A1.L2, A1.L3 through on-load switch 8, after input end L1, the L2 of driver 2, L3, export three phase mains by output terminal U, V, W again, drive the rotation of three phase alternating current motor 6; By driver 2 output terminal L+, L-, be switch power DC/DC4 power supply, switch power DC/DC4 exports the 24V power supply by output terminal, drives single-phase brake 7 actions.
During primary power supply 1 normal power supply, switch power DC/DC4 is single-phase brake 7 power supplies, when switch power DC/DC4 can't be normally single-phase brake 7 power supply, contactor 13 closures, the Ac of primary power supply 1 output arrives threephase switch power supply AC/DC5 from A1.L1, A1.L2, A1.L3 through contactor 13, after input end L1, the L2 of threephase switch power supply AC/DC5, L3, then export the 24V power supply by output terminal, drive single-phase brake 7 cars actions; After primary power supply 1 power down, by 3 power supplies of standby capacitor box, standby capacitor box 3 flows to L+, the L-end of driver 2 for driver 2 power supplies through diode, by output terminal U, V, W, export three phase mains, drives the rotation of three phase alternating current motor 6; Flow to the input end of switch power DC/DC4 through diode, by output terminal, export the 24V power supply, drive single-phase brake 7 actions.
The utility model also has numerous embodiments, and all employing equivalents or equivalent transformation and all technology of forming, within all dropping on protection domain of the present utility model.
Claims (2)
1. the device of putting away the oars that exchanges variable-pitch control system, comprise primary power supply, on-load switch, driver and three phase alternating current motor, primary power supply, on-load switch, driver, three phase alternating current motor is connected successively, it is characterized in that: also comprise switch power DC/DC, standby capacitor box and single-phase brake, switch power DC/DC respectively with driver, single-phase brake is connected, be provided with the first fus between switch power DC/DC and driver, be provided with the second fus between switch power DC/DC and single-phase brake, described standby capacitor box is connected between described switch power DC/DC and driver through diode.
2. the device of putting away the oars of interchange variable-pitch control system as claimed in claim 1, it is characterized in that: also comprise threephase switch power supply AC/DC, the input end of described threephase switch power supply AC/DC is connected with primary power supply through a relay, and output terminal is connected between single-phase brake and switch power DC/DC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204150691U CN203335327U (en) | 2013-07-12 | 2013-07-12 | Paddle folding device of alternating-current variable paddle pitch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204150691U CN203335327U (en) | 2013-07-12 | 2013-07-12 | Paddle folding device of alternating-current variable paddle pitch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335327U true CN203335327U (en) | 2013-12-11 |
Family
ID=49704004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204150691U Withdrawn - After Issue CN203335327U (en) | 2013-07-12 | 2013-07-12 | Paddle folding device of alternating-current variable paddle pitch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335327U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410661A (en) * | 2013-07-12 | 2013-11-27 | 湘潭世优电气有限公司 | Blade collecting device of alternating current variable pitch control system |
| 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 |
-
2013
- 2013-07-12 CN CN2013204150691U patent/CN203335327U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410661A (en) * | 2013-07-12 | 2013-11-27 | 湘潭世优电气有限公司 | Blade collecting device of alternating current variable pitch control system |
| CN103410661B (en) * | 2013-07-12 | 2015-11-11 | 湖南世优电气股份有限公司 | A kind of device of putting away the oars exchanging variable-pitch control system |
| 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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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HUNAN SHIYOU ELECTRIC CO., LTD. Free format text: FORMER NAME: XIANGTAN SHITONG UNITRON ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 411104 Torch Innovation and Pioneer Park, hi tech Zone, Hunan, Xiangtan Patentee after: HUNAN SHIYOU ELECTRIC PUBLIC CO., LTD. Address before: 411104 Torch Innovation and Pioneer Park, hi tech Zone, Hunan, Xiangtan Patentee before: Xiangtan Shitong Unitron Electric Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131211 Effective date of abandoning: 20151111 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |