CN201925090U - Pitch control system - Google Patents
Pitch control system Download PDFInfo
- Publication number
- CN201925090U CN201925090U CN2010206519758U CN201020651975U CN201925090U CN 201925090 U CN201925090 U CN 201925090U CN 2010206519758 U CN2010206519758 U CN 2010206519758U CN 201020651975 U CN201020651975 U CN 201020651975U CN 201925090 U CN201925090 U CN 201925090U
- Authority
- CN
- China
- Prior art keywords
- auxiliary reclay
- intermediate relay
- plc
- pitch
- control
- 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
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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
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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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- 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
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides a pitch control system, which comprises a pitch system control box, wherein the pitch system control box is provided with a PLC (programmable logic controller) used for monitoring voltage, a first intermediate relay connected with the PLC in parallel and provided with a normally closed contact, and a second intermediate relay connected with the first intermediate relay and provided with a normally closed contact; the first intermediate relay divides a master control EFC signal of the first intermediate relay into two paths, one path passing the normally closed contact of the first intermediate relay serves as the starting signal for the operation of an axle box system, while the other path is directly transmitted into the PLC for monitoring; and the second intermediate relay cuts off the master control EFC signal, and is input to the axle box system together with the 24V DC connected in series with the second intermediate relay when the master control EFC signal disappears and the battery voltage is insufficient. Compared with the prior art, the pitch control system has the benefits that when the battery electricity quantity is insufficient, a driver is enabled to work normally to complete oar drawing by switching the power source.
Description
Technical field
The utility model relates to a kind of variable blade control system, relates in particular to a kind of wind generating variable-propeller control system of putting away the oars under emergency.
Background technique
Along with non-renewable energy resources face exhausted awkward situation at world wide, for satisfying industrialized production and the human lives is required, people are to the concern of solar energy, wind-force, these renewable energy sourcess of waterpower and utilize day by day and promote.Wherein, wind-power electricity generation is a kind of relatively ripe, higher energy development technology of conversion efficiency that developed, especially on the plateau, there is popularization and application widely in area such as coastal.
Putting away the oars in the wind generating variable-propeller control system is a very important function.The control mode of putting away the oars commonly used in variable blade control system is: generally speaking, when master control sends to the EFC blackout of pitch-controlled system, driver will quit work, and carried out battery and put away the oars by the backup battery power supply this moment.If the battery electric quantity deficiency can not be finished the task of putting away the oars so that blade turns back to 91 ° in this moment or the process of putting away the oars, may cause the damage of Fan Equipment, the consequence that causes like this is very serious.
The model utility content
At the deficiencies in the prior art, the utility model purpose is to provide a kind of improved wind generating variable-propeller control system, can not finish the problem of putting away the oars to solve in the process of promptly putting away the oars the battery electric quantity deficiency.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that
A kind of variable blade control system is used for promptly putting away the oars when cell voltage is not enough, and it comprises a pitch-controlled system control box, wherein, is provided with in described pitch-controlled system control box:
The PLC that is used for monitoring voltage;
First auxiliary reclay that have normally-closed contact in parallel with described PLC, described first auxiliary reclay will be divided into two-way from master control EFC signal, one the tunnel through the actuating signal of the described first auxiliary reclay normally-closed contact as the operation of axle box system, and another road is directly sent into described PLC and monitored; And
Second auxiliary reclay that have normally opened contact in parallel with described first auxiliary reclay, described second auxiliary reclay is when described master control EFC blackout and cell voltage deficiency, disconnect described master control EFC signal, and will input to the axle box system with the 24VDC that described second auxiliary reclay is connected.
As a further improvement on the present invention, described PLC monitors the first auxiliary reclay voltage and described cell voltage.
As a further improvement on the present invention, when master control EFC blackout and cell voltage deficiency, described PLC will export a high level signal and control the second auxiliary reclay adhesive.
Compared with prior art, the beneficial effects of the utility model are: when battery electric quantity is not enough, by Switching power, make the driver proper functioning finish the task of putting away the oars.
Description of drawings
Fig. 1 is the schematic representation of the utility model auxiliary reclay control master control EFC signal.
Embodiment
Mode with example describes embodiment of the present utility model with reference to the accompanying drawings.
Under the normal condition, the master control meeting provides EFC signal to pitch-controlled system, whole blower fan just can be in running order, and when the EFC blackout, or primary power supply is when breaking down, driver will quit work, put away the oars by the backup battery power supply, if battery electric quantity deficiency in this moment or the process of putting away the oars, in the utility model, can switch to pitch-controlled system inside at once provides 24VDC as the EFC signal, makes the driver proper functioning finish the task of putting away the oars.
As shown in Figure 1, in the utility model preferred forms, described variable blade control system comprises a pitch-controlled system control box, in described pitch-controlled system control box, be provided with one and have two groups of auxiliary reclays 11 of often opening electric shock, and the auxiliary reclay 10 that has two groups of normally-closed contacts, described auxiliary reclay 11 and 12 parallel connections of described auxiliary reclay, auxiliary reclay 10 will be divided into two-way from master control EFC signal, one the tunnel through the actuating signal of 10 1 groups of normally-closed contacts of auxiliary reclay as the operation of axle box system, another road is directly sent into the PLC12 in parallel with described auxiliary reclay 10 and is monitored, PLC12 also can monitor cell voltage simultaneously, when EFC blackout and cell voltage deficiency, PLC will export 11 adhesives of a high level signal control auxiliary reclay, make its disconnecting external EFC signal, simultaneously the inner 24VDC that connects with described auxiliary reclay 11 is delivered to the actuating signal of axle box system as system's operation through auxiliary reclay 11, thereby driver proper functioning, drive blade and get back to 91 °, finish the task of putting away the oars.
In the utility model, if when primary power supply breaks down, PLC12 will control output signal makes auxiliary reclay 10 be in off state, directly drives blade by backup battery and finishes the task of putting away the oars.
Although be the example purpose, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize that under situation about not breaking away from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.
Claims (3)
1. a variable blade control system is used for promptly putting away the oars when cell voltage is not enough, and it comprises a pitch-controlled system control box, it is characterized in that, is provided with in described pitch-controlled system control box:
The PLC that is used for monitoring voltage;
First auxiliary reclay that have normally-closed contact in parallel with described PLC, described first auxiliary reclay will be divided into two-way from master control EFC signal, one the tunnel through the actuating signal of the described first auxiliary reclay normally-closed contact as the operation of axle box system, and another road is directly sent into described PLC and monitored; And
Second auxiliary reclay that have normally opened contact in parallel with described first auxiliary reclay, described second auxiliary reclay is when described master control EFC blackout and cell voltage deficiency, disconnect described master control EFC signal, and will input to the axle box system with the 24VDC that described second auxiliary reclay is connected.
2. variable blade control system as claimed in claim 1 is characterized in that, described PLC monitors the first auxiliary reclay voltage and described cell voltage.
3. variable blade control system as claimed in claim 2 is characterized in that, when master control EFC blackout and cell voltage deficiency, described PLC will export a high level signal and control the second auxiliary reclay adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206519758U CN201925090U (en) | 2010-12-10 | 2010-12-10 | Pitch control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206519758U CN201925090U (en) | 2010-12-10 | 2010-12-10 | Pitch control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201925090U true CN201925090U (en) | 2011-08-10 |
Family
ID=44428942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206519758U Expired - Lifetime CN201925090U (en) | 2010-12-10 | 2010-12-10 | Pitch control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201925090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011694A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Variable-pitch control system |
-
2010
- 2010-12-10 CN CN2010206519758U patent/CN201925090U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011694A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Variable-pitch control system |
| CN102011694B (en) * | 2010-12-10 | 2012-07-04 | 苏州能健电气有限公司 | Variable-pitch control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110810 Effective date of abandoning: 20120704 |