CN203251135U - Working power supply circuit for ac driver main control board - Google Patents
Working power supply circuit for ac driver main control board Download PDFInfo
- Publication number
- CN203251135U CN203251135U CN2012206781487U CN201220678148U CN203251135U CN 203251135 U CN203251135 U CN 203251135U CN 2012206781487 U CN2012206781487 U CN 2012206781487U CN 201220678148 U CN201220678148 U CN 201220678148U CN 203251135 U CN203251135 U CN 203251135U
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- power supply
- power
- driver
- diode
- transformer
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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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Abstract
The utility model discloses a working power supply circuit for an ac driver main control board. The working power supply circuit comprises a transformer, a high voltage terminal of the transformer is connected to a positive electrode of a bus and a collector of a triode, an emitter electrode of the triode is connected to a negative electrode of the bus, and a second capacitor is connected between the positive electrode of the bus and the negative electrode of the bus. A low voltage terminal of the transformer is connected to a diode, the diode is connected in parallel with a first capacitor and a clamping diode, and the clamping diode is connected to an output terminal of an external dc power module. An input terminal of the external dc power module is connected to an uninterrupted power supply (UPS), the two terminals of the first capacitor are connected to a power supply isolation module, and the power supply isolation module is connected to a driver main control board. According to the utility model, the power supply isolation module is added on an output terminal of a switching power supply of an ac driver, the interference caused by the influence on the switching power supply by a power network is reduced, and the reliability of the ac driver used in a wind power ac pitch system is improved.
Description
Technical field
The utility model relates to a kind of working power circuit, and what be specifically related to is a kind of ac driver master control borad working power circuit.
Background technology
Along with non-renewable energy resources worldwide face exhausted awkward situation, for satisfying suitability for industrialized production and the human lives is required, people are to the concern of solar energy, wind-force, these regenerative resources of waterpower and utilize day by day and promote.Wherein, wind power generation is subject to the extensive attention of various countries as a kind of relatively developmental technology of new energy resources of maturation that developed.
Variable blade control system is one of core component of wind turbine generator, its major function is to come the angle of regulator generator group blade according to the size of wind-force, change air-flow to the angle of attack of blade, the power output of wind-driven generator can be automatically adjusted according to the size of wind speed, the delivery efficiency that guarantees wind-driven generator is the highest, and output is in rated power.
At present, the pitch-controlled system of China's wind power generation group adopts the direct current pitch-controlled system more, and what namely the driver element of pitch-controlled system adopted is dc driver and direct current machine.The ubiquitous problem of direct current pitch-controlled system is that the power density of direct current machine is little, cost height, troublesome maintenance etc.Current, wind turbine generator per kilowatt cost continues to reduce, and falls over a large area cost at wind power plant, improves under the overall situation of cost performance, and the above-mentioned shortcoming of direct current pitch-controlled system is also just more outstanding.
The driver element that exchanges pitch-controlled system adopts alternating current machine and ac driver.Ac motor structure is simple, reliability and durability, cost is low, easy to maintenance, just in time overcome the above-mentioned shortcoming of direct current machine.It is also more and more extensive to exchange the application of pitch-controlled system in wind power pitch-controlled system.Compare the direct current pitch-controlled system, the shortcoming that exchanges pitch-controlled system is, in a single day system breaks down, exchange pitch-controlled system and can not utilize the reserve DC power supply (generally being batteries or super capacitor group) of pitch-controlled system directly to put away the oars, and the direct current pitch-controlled system can directly be added to the reserve DC power supply on the direct current machine and puts away the oars.How improving the reliability that exchanges pitch-controlled system, is the most important thing that exchanges the pitch-controlled system development.
Summary of the invention
The purpose of this utility model is to overcome the above problem that prior art exists, and a kind of working power circuit of ac driver master control borad is provided, and guarantees driver control part reliably working.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model is achieved through the following technical solutions:
A kind of working power circuit of ac driver master control borad, comprise transformer, the high-pressure side connection bus positive pole of described transformer and the collector electrode of triode, the emitter connection bus negative pole of described triode, connect the second electric capacity between described bus positive pole and the described bus negative pole, the low-pressure end of described transformer connects diode, described diodes in parallel connects the first electric capacity and clamp diode, described clamp diode connects the output of external dc power module, the input of described external dc power module connects ups power, described the first electric capacity two ends connect power isolation module, and described power isolation module connects the driver master control borad.
The beneficial effects of the utility model are:
The utility model has added the one-level power isolation module at the Switching Power Supply output of ac driver, has reduced the interference that Switching Power Supply is produced by electric network influencing, has improved the reliability that ac driver uses in the wind power AC pitch-controlled system.
Description of drawings
Fig. 1 overall structure schematic diagram;
Fig. 2 is the waveform of opening of the power tube of the ac driver of not taking the anti-interference and Redundancy Design of master control borad working power;
Fig. 3 is the waveform of opening of the power tube of the ac driver that adopts the anti-interference and Redundancy Design of master control borad working power.
Number in the figure explanation: 1, transformer, 2, diode, 3, clamp diode, 4, the external dc power module, 5, ups power, the 6, second electric capacity, 7, triode, the 8, first electric capacity, 9, power isolation module, 10, the driver master control borad.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
With reference to shown in Figure 1, a kind of working power circuit of ac driver master control borad, comprise transformer 1, the high-pressure side connection bus positive pole of described transformer 1 and the collector electrode of triode 7, the emitter connection bus negative pole of described triode 7, connect the second electric capacity 6 between described bus positive pole and the described bus negative pole, the low-pressure end of described transformer 1 connects diode 2, described diode 2 be connected in parallel the first electric capacity 8 and clamp diode 3, described clamp diode 3 connects the output of external dc power module 4, the input of described external dc power module 4 connects ups power 5, described the first electric capacity 8 two ends connect power isolation module 9, and described power isolation module 9 connects driver master control borad 10.
Claims (1)
1. the working power circuit of an ac driver master control borad, it is characterized in that: comprise transformer (1), the high-pressure side connection bus positive pole of described transformer (1) and the collector electrode of triode (7), the emitter connection bus negative pole of described triode (7), connect the second electric capacity (6) between described bus positive pole and the described bus negative pole, the low-pressure end of described transformer (1) connects diode (2), described diode (2) be connected in parallel the first electric capacity (8) and clamp diode (3), described clamp diode (3) connects the output of external dc power module (4), the input of described external dc power module (4) connects ups power (5), described the first electric capacity (8) two ends connect power isolation module (9), and described power isolation module (9) connects driver master control borad (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206781487U CN203251135U (en) | 2012-12-11 | 2012-12-11 | Working power supply circuit for ac driver main control board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206781487U CN203251135U (en) | 2012-12-11 | 2012-12-11 | Working power supply circuit for ac driver main control board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203251135U true CN203251135U (en) | 2013-10-23 |
Family
ID=49377553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206781487U Expired - Fee Related CN203251135U (en) | 2012-12-11 | 2012-12-11 | Working power supply circuit for ac driver main control board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203251135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872750A (en) * | 2012-12-11 | 2014-06-18 | 苏州风行电气有限公司 | Working power supply circuit of alternating current driver main control board |
-
2012
- 2012-12-11 CN CN2012206781487U patent/CN203251135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872750A (en) * | 2012-12-11 | 2014-06-18 | 苏州风行电气有限公司 | Working power supply circuit of alternating current driver main control board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20131211 |