CN101964533B - Low voltage ride-through variable pitch control system for double-fed wind turbine generator unit - Google Patents
Low voltage ride-through variable pitch control system for double-fed wind turbine generator unit Download PDFInfo
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- CN101964533B CN101964533B CN201010273061A CN201010273061A CN101964533B CN 101964533 B CN101964533 B CN 101964533B CN 201010273061 A CN201010273061 A CN 201010273061A CN 201010273061 A CN201010273061 A CN 201010273061A CN 101964533 B CN101964533 B CN 101964533B
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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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Abstract
The invention relates to a low voltage ride-through variable pitch control system for a double-fed wind turbine generator unit. The system comprises a master control system, a low voltage ride-through control module of a variable pitch system, the variable pitch system and a control module of a variable pitch butt joint master control system, wherein the master control system sends a detected low voltage ride-through starting signal to the low voltage ride-through control module of the variable pitch system to trigger the variable pitch system to enter a low voltage ride-through state; the variable pitch system transmits state and control signals to the low voltage ride-through control module of the variable pitch system through the control module of the variable pitch butt joint master control system, wherein the state signal reflects the state of the variable pitch system; and the control signal controls the low voltage ride-through control module of the variable pitch system to shield faults, monitor the state signal, control a feathering speed of a blower and return a control result and the state signal to the master control system in real time; and after the low voltage ride-through, the low voltage ride-through control module of the variable pitch system exits from the control over the variable pitch system, and the control module of the variable pitch butt joint master control system receives the control signal from the master control system. The low voltage ride-through variable pitch control system for the double-fed wind turbine generator unit has wide application and high practicability and can be widely applied to the wind power industry.
Description
Technical field
The present invention relates to a kind of wind generating set pitch control control system, particularly pass through variable blade control system about a kind of double-feedback aerogenerator group low-voltage.
Background technology
In recent years, Chinese wind-powered electricity generation industry gets into the super-speed development stage, and installed capacity is doubled year after year.Yet along with the extensive development of wind-powered electricity generation, the specification requirement that electrical network is inserted in the large-scale wind power field is also improving constantly.As far as the wind-powered electricity generation unit, a wherein crucial low voltage ride-through capability that specification requirement is exactly the wind-powered electricity generation unit.Low-voltage is passed through and is meant that in the scope that certain voltage is fallen, the wind-powered electricity generation unit can uninterruptedly be incorporated into the power networks when electric network fault or disturbance cause the electric voltage dropping of wind farm grid-connected point.Wherein, pitch-controlled system is as the blower fan important components, and whole to realize that low-voltage is passed through function most important for blower fan in the realization that its functional realization low-voltage is passed through function.
Summary of the invention
To the problems referred to above, the purpose of this invention is to provide a kind of practicality strong, can realize that low-voltage passes through the double-feedback aerogenerator group low-voltage of function and pass through variable blade control system.
For realizing above-mentioned purpose; The present invention takes following technical scheme: a kind of double-feedback aerogenerator group low-voltage is passed through variable blade control system, it is characterized in that: it comprises that a master control system, a pitch-controlled system low-voltage are passed through control module, a pitch-controlled system and becomes oar butt joint master control system control module; Said master control system is passed through enabling signal with detected low-voltage and is sent to said pitch-controlled system low-voltage and passes through in the control module, triggers said pitch-controlled system and gets into low-voltage and pass through state; Said pitch-controlled system transfers to said pitch-controlled system low-voltage with status signal and control signal through said change oar butt joint master control system control module and passes through in the control module; The state of pitch-controlled system during reflecting said low-voltage and pass through by status signal; Said control signal is controlled said pitch-controlled system low-voltage and is passed through fault during control module is passed through low-voltage and carry out the monitoring of status signal during shielding processing, the low-voltage and the control of blower fan feathering speed, and will control the result and status signal returns said master control system in real time; When low-voltage pass through through after; Said pitch-controlled system low-voltage is passed through the finish command signal that control module sends according to said master control system and is withdrawed from the control to said pitch-controlled system, is received the control signal of master control system by said change oar butt joint master control system control module.
Said pitch-controlled system low-voltage is passed through and is comprised a status signal monitoring modular, a fault masking time delay module and a feathering rate control module in the control module; During low-voltage was passed through, said status signal monitoring modular was monitored it after receiving the status signal that said pitch-controlled system sends, and status signal is back to said master control system through said change oar butt joint master control system control module; Said fault masking time delay module passes through signal to low-voltage and carries out shielding processing, and by said feathering rate control module according to the adjusting of putting away the oars of predefined speed.
The fault masking processing mode of said fault masking time delay module adopts the delayed alarm mode.
Said pitch-controlled system adopts 1.5MW double-fed type wind-powered electricity generation unit to possess the pitch-controlled system of backup battery power supply.
The present invention is owing to take above technical scheme; It has the following advantages: 1, the present invention is owing to be based upon on the 1.5MW double-fed type wind-powered electricity generation unit type basis; It adopts master control system, pitch-controlled system low-voltage to pass through control module, pitch-controlled system and change oar butt joint master control system control module and realizes double-feedback aerogenerator group low-voltage passed through and become oar control; Therefore, realize widely used performance, and had stronger practicality.2, the present invention is during low-voltage is passed through; Because adopting master control system that the pitch-controlled system low-voltage is passed through control module controls; Realization to the shielding of fault-signal, low-voltage during monitoring and the control of blower fan feathering speed of status signal; Therefore, guaranteed that fan operation does not exceed the speed limit, realized that the wind-powered electricity generation unit can uninterruptedly be incorporated into the power networks.3, the present invention passes through control module because employing comprises the pitch-controlled system low-voltage of status signal monitoring modular, fault masking time delay module and feathering rate control module; Realize monitoring by the status signal monitoring modular to system mode; The fault masking time delay module realizes that low-voltage is passed through signal carries out shielding processing; And by the feathering rate control module according to the adjusting of putting away the oars of predefined speed, because of material, under fully loaded strong wind situation; Realized the adjusting of putting away the oars of certain speed, thereby guaranteed that fan operation does not exceed the speed limit.The present invention can be widely used in the wind-powered electricity generation industry.
Description of drawings
Fig. 1 is an overall structure sketch map of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is carried out detailed description.
As shown in Figure 1; It is to be based upon on the 1.5MW double-fed type wind-powered electricity generation unit type basis that double-feedback aerogenerator group low-voltage of the present invention is passed through variable blade control system, and it comprises that a master control system 1, a pitch-controlled system low-voltage are passed through control module 2, a pitch-controlled system 3 and becomes oar butt joint master control system control module 4.
Master control system 1 detects the low-voltage that the frequency converter in the existing system sends and passes through enabling signal; And low-voltage is passed through enabling signal be sent to the pitch-controlled system low-voltage and pass through in the control module 2; Trigger whole pitch-controlled system 3 entering low-voltages and pass through state, to guarantee that low pressure is passed through state leeward function to be continued to be incorporated into the power networks.At this moment, the status signal that pitch-controlled system 3 sends and control signal are docked master control system control module 4 and are transferred to the pitch-controlled system low-voltage and pass through in the control module 2 through becoming oar, the state of pitch-controlled system 3 during being reflected low-voltage and passed through by status signal.Under the control signal control that pitch-controlled system 3 sends; Pass through fault during control module 2 realizes low-voltage passed through by the pitch-controlled system low-voltage and carry out the monitoring of status signal during shielding processing, the low-voltage and the control of blower fan feathering speed; And will control the result and status signal is back to master control system 1 in real time; To cooperate master control system 1 during low-voltage is passed through, guarantee that fan operation does not exceed the speed limit, the wind-powered electricity generation unit can uninterruptedly be incorporated into the power networks.
When low-voltage pass through through after; Master control system 1 is according to the control result and the status signal that receive; Pass through the finish command signal that control module 2 is sent to the pitch-controlled system low-voltage; Then the pitch-controlled system low-voltage is passed through control module 2 and is withdrawed from the control to pitch-controlled system 3, and still by becoming the control signal that oar butt joint master control system control module 4 receives master control system 1, whole system is recovered operate as normal.
In the foregoing description, the pitch-controlled system low-voltage is passed through and is comprised a status signal monitoring modular 5, a fault masking time delay module 6 and a feathering rate control module 7 in the control module 2.During low-voltage is passed through; After status signal monitoring modular 5 receives the status signal of pitch-controlled system 3 transmissions; Realization is to the monitoring of system mode; And the status signal after low-voltage passed through is back to and becomes in the oar butt joint master control system control module 4, by becoming oar butt joint master control system control module 4 status signal is sent to master control system 1.Fault masking time delay module 6 realizes that low-voltage is passed through signal carries out shielding processing; And by feathering rate control module 7 according to the adjusting of putting away the oars of predefined speed; Mainly be to carry out the adjusting of putting away the oars of certain speed under the fully loaded strong wind situation, thereby guarantee that fan operation does not exceed the speed limit.
Among above-mentioned each embodiment, the fault masking processing mode of fault masking time delay module 6 adopts the delayed alarm mode.
Among above-mentioned each embodiment, pitch-controlled system 3 adopts 1.5MW double-fed type wind-powered electricity generation unit to possess the pitch-controlled system of backup battery power supply.
Above-mentioned each embodiment only is used to explain the present invention; The structure of each parts, size, the position is set and shape all can change to some extent; On the basis of technical scheme of the present invention; All improvement and equivalents of individual component being carried out according to the principle of the invention all should not got rid of outside protection scope of the present invention.
Claims (4)
1. a double-feedback aerogenerator group low-voltage is passed through variable blade control system, it is characterized in that: it comprises that a master control system, a pitch-controlled system low-voltage are passed through control module, a pitch-controlled system and becomes oar butt joint master control system control module;
Said master control system is passed through enabling signal with detected low-voltage and is sent to said pitch-controlled system low-voltage and passes through in the control module, triggers said pitch-controlled system and gets into low-voltage and pass through state; Said pitch-controlled system transfers to said pitch-controlled system low-voltage with status signal and control signal through said change oar butt joint master control system control module and passes through in the control module; The state of pitch-controlled system during reflecting said low-voltage and pass through by status signal; Said control signal is controlled said pitch-controlled system low-voltage and is passed through fault during control module is passed through low-voltage and carry out the monitoring of status signal during shielding processing, the low-voltage and the control of blower fan feathering speed, and will control the result and status signal returns said master control system in real time;
When low-voltage pass through through after; Said pitch-controlled system low-voltage is passed through the finish command signal that control module sends according to said master control system and is withdrawed from the control to said pitch-controlled system, is received the control signal of master control system by said change oar butt joint master control system control module.
2. a kind of double-feedback aerogenerator group low-voltage as claimed in claim 1 is passed through variable blade control system, it is characterized in that: said pitch-controlled system low-voltage is passed through and is comprised a status signal monitoring modular, a fault masking time delay module and a feathering rate control module in the control module; During low-voltage was passed through, said status signal monitoring modular was monitored it after receiving the status signal that said pitch-controlled system sends, and status signal is back to said master control system through said change oar butt joint master control system control module; Said fault masking time delay module passes through enabling signal to low-voltage and carries out shielding processing, and by said feathering rate control module according to the adjusting of putting away the oars of predefined speed.
3. a kind of double-feedback aerogenerator group low-voltage as claimed in claim 2 is passed through variable blade control system, it is characterized in that: the fault masking processing mode of said fault masking time delay module adopts the delayed alarm mode.
4. according to claim 1 or claim 2 a kind of double-feedback aerogenerator group low-voltage is passed through variable blade control system, it is characterized in that: said pitch-controlled system adopts 1.5MW double-fed type wind-powered electricity generation unit to possess the pitch-controlled system of backup battery power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010273061A CN101964533B (en) | 2010-09-03 | 2010-09-03 | Low voltage ride-through variable pitch control system for double-fed wind turbine generator unit |
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| CN201010273061A CN101964533B (en) | 2010-09-03 | 2010-09-03 | Low voltage ride-through variable pitch control system for double-fed wind turbine generator unit |
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| CN101964533A CN101964533A (en) | 2011-02-02 |
| CN101964533B true CN101964533B (en) | 2012-10-24 |
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| CN201010273061A Active CN101964533B (en) | 2010-09-03 | 2010-09-03 | Low voltage ride-through variable pitch control system for double-fed wind turbine generator unit |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101278816B1 (en) | 2010-11-30 | 2013-06-25 | 미츠비시 쥬고교 가부시키가이샤 | Hydraulic pump structure for wind turbine generator or tidal current generator and method of mounting hydraulic pump |
| EP2486274B1 (en) | 2010-11-30 | 2016-01-20 | MITSUBISHI HEAVY INDUSTRIES, Ltd. | Power generating apparatus of renewable energy type and operation method thereof |
| CN103375333A (en) * | 2012-04-18 | 2013-10-30 | 苏州能健电气有限公司 | Pitch control system in low voltage through process |
| CN102646993B (en) * | 2012-04-25 | 2014-07-30 | 东方电气新能源设备（杭州）有限公司 | Low-voltage ride through (LVRT) system of wind generation set and method of the system |
| CN103472406A (en) * | 2013-09-13 | 2013-12-25 | 国电联合动力技术有限公司 | Wind turbine generator unit pitch system standby power supply online automatic detection method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6921985B2 (en) * | 2003-01-24 | 2005-07-26 | General Electric Company | Low voltage ride through for wind turbine generators |
| CN101299540A (en) * | 2007-04-30 | 2008-11-05 | 国网南京自动化研究院 | Apparatus for implementing low voltage cross-over of wind generator set |
| CN101639040A (en) * | 2009-09-04 | 2010-02-03 | 湘电风能有限公司 | Method and device for controlling low-voltage operation of wind generating set |
| CN101764413A (en) * | 2009-11-25 | 2010-06-30 | 中国电力科学研究院 | System simulation method for connecting large-scale wind power into power grid in centralization way |
| EP2204580A2 (en) * | 2008-12-31 | 2010-07-07 | General Electric Company | Wind turbine starting |
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2010
- 2010-09-03 CN CN201010273061A patent/CN101964533B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6921985B2 (en) * | 2003-01-24 | 2005-07-26 | General Electric Company | Low voltage ride through for wind turbine generators |
| CN101299540A (en) * | 2007-04-30 | 2008-11-05 | 国网南京自动化研究院 | Apparatus for implementing low voltage cross-over of wind generator set |
| EP2204580A2 (en) * | 2008-12-31 | 2010-07-07 | General Electric Company | Wind turbine starting |
| CN101639040A (en) * | 2009-09-04 | 2010-02-03 | 湘电风能有限公司 | Method and device for controlling low-voltage operation of wind generating set |
| CN101764413A (en) * | 2009-11-25 | 2010-06-30 | 中国电力科学研究院 | System simulation method for connecting large-scale wind power into power grid in centralization way |
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Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130812 |
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Effective date of registration: 20130812 Address after: 100044, Beijing Haidian District Zhongguancun South Street, No. 56, building 17 square radius Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100044, Beijing Haidian District Zhongguancun South Street, No. 56, building 17 square radius Patentee before: Guodian United Power Technology Co., Ltd. |
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Effective date of registration: 20140903 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Address before: 100000, Beijing Haidian District Zhongguancun South Street, No. 56, building 17 square radius Patentee before: Guodian United Power Technology Co., Ltd. Patentee before: Guodian New Energy Technology Institute |