CN103061975A - Alternating current pitch control system of wind generating set - Google Patents
Alternating current pitch control system of wind generating set Download PDFInfo
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- CN103061975A CN103061975A CN2011103210281A CN201110321028A CN103061975A CN 103061975 A CN103061975 A CN 103061975A CN 2011103210281 A CN2011103210281 A CN 2011103210281A CN 201110321028 A CN201110321028 A CN 201110321028A CN 103061975 A CN103061975 A CN 103061975A
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- control system
- relay
- alternating current
- pitch control
- input end
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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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- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses an alternating current pitch control system of a wind generating set. The alternating current pitch control system of the wind generating set comprises a programmable logic controller (PLC) controller and an alternating current actuator, wherein an analog quantity outputting module and a digital quantity inputting module are integrated on the PLC controller, a speed-preset input terminal and a status signal output terminal are arranged on the alternating current actuator, the analog quantity outputting module and the speed-preset input terminal are connected with a transmission speed-preset curve, the status signal output terminal is connected with the digital quantity inputting module through a first relay to transmit feedback status signals, and the first relay is connected with a 24 V sharing power supply. The alternating current pitch control system of the wind generating set is simple in structure, high in reliability, low in cost, convenient to maintain, and high in performance. Meanwhile, application needs of the alternating current pitch control system of the wind generating set are met.
Description
Technical field
The invention belongs to wind power generation field, relate in particular to a kind of wind power AC pitch control system.
Background technique
Along with non-renewable energy resources worldwide face exhausted awkward situation, 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 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 power generating set, 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 output power 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.What at present, the driver element of the pitch-controlled system of China's wind-power electricity generation group adopted is dc driver and direct current generator.The ubiquitous problem of direct current pitch-controlled system is that the specific power of direct current generator is little, cost height, troublesome maintenance etc.Current, wind power generating set 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 AC motor 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 generator.Wind power pitch-controlled system generally all comprises a main control unit and three performance elements.The core component of main control unit is PLC and module group thereof, and PLC is brain and the command center of whole pitch-controlled system.The core component of three performance elements is variable pitch drivers, the direct current pitch-controlled system with exchange pitch-controlled system, variable pitch driver adopts respectively dc driver and ac driver.
Summary of the invention
Defective in view of above-mentioned prior art exists the objective of the invention is to propose a kind of simply constructed wind power AC pitch control system.
Purpose of the present invention will be achieved by the following technical programs:
A kind of wind power AC pitch control system comprises PLC controller and ac driver, is integrated with analog output module and digital quantity input module on the described PLC controller; Described ac driver is provided with speed preset input end and state signal output terminal; Described analog output module is connected the transmission speed given curve with described speed preset input end, be connected transmission feedback states signal by the first relay between described state signal output terminal and the described digital quantity input module, described the first relay is connected with a 24V common source.
Preferably, above-mentioned wind power AC pitch control system, wherein: also be integrated with the first digital output module and the second digital output module on the described PLC controller; Described ac driver is provided with reset signal input end and operation enable signal input end; Be connected the transmission reset signal by the second relay between described the first digital output module and the described reset signal input end, be connected transmission operation enable signal by the 3rd relay between described the second digital output module and the described operation enable signal input end, described the second relay is connected with described 24V common source respectively with the 3rd relay.
The invention provides a kind of wind power AC pitch control system, simple in structure, reliability is high, and cost is low, and is easy to maintenance, and function admirable has satisfied the requirement that the wind power AC pitch-controlled system is used.
Description of drawings
Fig. 1 is circuit diagram of the present invention.
Embodiment
A kind of wind power AC pitch control system of present embodiment as shown in Figure 1, comprises PLC controller and ac driver, is integrated with analog output module 1 and digital quantity input module 3 on the PLC controller; Ac driver is provided with speed preset input end 2 and state signal output terminal 4; Analog output module 1 is connected the transmission speed given curve with speed preset input end 2, is connected transmission feedback states signal by the first relay K M1 between state signal output terminal 4 and the digital quantity input module 3, and the first relay K M1 is connected with the 24V common source.Also be integrated with the first digital output module 5 and the second digital output module 7 on the PLC controller; Ac driver is provided with reset signal input end 6 and operation enable signal input end 8; Be connected the transmission reset signal by the second relay K M2 between the first digital output module 5 and the reset signal input end 6, is connected to transmit by the 3rd relay K M3 between the second digital output module 7 and the operation enable signal input end 8 and moves enable signal, the second relay K M2 is connected with the 24V common source respectively with the 3rd relay K M3.
The working procedure of the wind power AC pitch control system of present embodiment is: PLC cooks up the speed given curve that becomes the oar motor according to physical location and the target location of blade, speed given curve sends to the speed preset input end 2 of ac driver from analog output module 1 by the analog amount form, the speed given curve that ac driver is sent according to PLC drives and becomes oar motor speed operation with closed ring, makes blade arrive fast the target location.
Present embodiment provides a kind of wind power AC pitch control system, and is simple in structure, and reliability is high, and cost is low, and is easy to maintenance, and function admirable has satisfied the requirement that the wind power AC pitch-controlled system is used.
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 (2)
1. a wind power AC pitch control system comprises PLC controller and ac driver, it is characterized in that: be integrated with analog output module and digital quantity input module on the described PLC controller; Described ac driver is provided with speed preset input end and state signal output terminal; Described analog output module is connected the transmission speed given curve with described speed preset input end, be connected transmission feedback states signal by the first relay between described state signal output terminal and the described digital quantity input module, described the first relay is connected with a 24V common source.
2. wind power AC pitch control system according to claim 1 is characterized in that: also be integrated with the first digital output module and the second digital output module on the described PLC controller; Described ac driver is provided with reset signal input end and operation enable signal input end; Be connected the transmission reset signal by the second relay between described the first digital output module and the described reset signal input end, be connected transmission operation enable signal by the 3rd relay between described the second digital output module and the described operation enable signal input end, described the second relay is connected with described 24V common source respectively with the 3rd relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103210281A CN103061975A (en) | 2011-10-20 | 2011-10-20 | Alternating current pitch control system of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103210281A CN103061975A (en) | 2011-10-20 | 2011-10-20 | Alternating current pitch control system of wind generating set |
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| Publication Number | Publication Date |
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| CN103061975A true CN103061975A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011103210281A Pending CN103061975A (en) | 2011-10-20 | 2011-10-20 | Alternating current pitch control system of wind generating set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377968A (en) * | 2013-08-12 | 2015-02-25 | 苏州能健电气有限公司 | Wind power driving circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003113769A (en) * | 2001-10-03 | 2003-04-18 | Mitsubishi Heavy Ind Ltd | Blade pitch angle control device and wind force power generating device |
| CN201697797U (en) * | 2010-05-25 | 2011-01-05 | 沈阳华人风电科技有限公司 | Test-bed for electric pitch-controlled system of wind generating set |
| CN101975142A (en) * | 2010-11-12 | 2011-02-16 | 北京华电天仁电力控制技术有限公司 | Active pitch control system of wind driven generator with special working condition processing logic |
| CN201884203U (en) * | 2010-11-12 | 2011-06-29 | 北京华电天仁电力控制技术有限公司 | Compact wind-powered pitch controller based on low-voltage AC driving technology |
| CN202228275U (en) * | 2011-10-20 | 2012-05-23 | 苏州能健电气有限公司 | Wind power AC pitch control system |
-
2011
- 2011-10-20 CN CN2011103210281A patent/CN103061975A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003113769A (en) * | 2001-10-03 | 2003-04-18 | Mitsubishi Heavy Ind Ltd | Blade pitch angle control device and wind force power generating device |
| CN201697797U (en) * | 2010-05-25 | 2011-01-05 | 沈阳华人风电科技有限公司 | Test-bed for electric pitch-controlled system of wind generating set |
| CN101975142A (en) * | 2010-11-12 | 2011-02-16 | 北京华电天仁电力控制技术有限公司 | Active pitch control system of wind driven generator with special working condition processing logic |
| CN201884203U (en) * | 2010-11-12 | 2011-06-29 | 北京华电天仁电力控制技术有限公司 | Compact wind-powered pitch controller based on low-voltage AC driving technology |
| CN202228275U (en) * | 2011-10-20 | 2012-05-23 | 苏州能健电气有限公司 | Wind power AC pitch control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377968A (en) * | 2013-08-12 | 2015-02-25 | 苏州能健电气有限公司 | Wind power driving circuit |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130424 |