CN101964533A - 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 PDF

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Publication number
CN101964533A
CN101964533A CN2010102730617A CN201010273061A CN101964533A CN 101964533 A CN101964533 A CN 101964533A CN 2010102730617 A CN2010102730617 A CN 2010102730617A CN 201010273061 A CN201010273061 A CN 201010273061A CN 101964533 A CN101964533 A CN 101964533A
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voltage
low
control module
control system
control
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CN101964533B (en
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李佳奇
潘磊
陈宇
刘国君
秦明
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Guodian United Power Technology Co Ltd
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Guodian United Power Technology Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/76Power 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

A kind of double-feedback aerogenerator group low-voltage is passed through variable blade control system
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 enters 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.For 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
At 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 achieving the above object, 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; Described master control system is passed through enabling signal with detected low-voltage and is sent to described pitch-controlled system low-voltage and passes through in the control module, triggers described pitch-controlled system and enters low-voltage and pass through state; Described pitch-controlled system transfers to described pitch-controlled system low-voltage with status signal and control signal through described change oar butt joint master control system control module and passes through in the control module, the state of pitch-controlled system during reflecting described low-voltage and pass through by status signal, described control signal is controlled described 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 described master control system in real time; When low-voltage pass through by after, described pitch-controlled system low-voltage is passed through the finish command signal that control module sends according to described master control system and is withdrawed from control to described pitch-controlled system, is received the control signal of master control system by described change oar butt joint master control system control module.
Described 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, described status signal monitoring modular was monitored it after receiving the status signal that described pitch-controlled system sends, and status signal is back to described master control system through described change oar butt joint master control system control module; Described fault masking time delay module passes through signal to low-voltage and carries out shielding processing, and by described feathering rate control module according to the adjusting of putting away the oars of predefined speed.
The fault masking processing mode of described fault masking time delay module adopts the delayed alarm mode.
Described 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 the monitoring of status signal and the control of blower fan feathering speed, 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, by the monitoring of status signal monitoring modular realization 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 schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
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 and enter low-voltage 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, status signal that pitch-controlled system 3 sends and control signal transfer to the pitch-controlled system low-voltage and pass through in the control module 2 through becoming oar butt joint master control system control module 4, 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 by 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 control to pitch-controlled system 3, 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.
In the various embodiments described above, the fault masking processing mode of fault masking time delay module 6 adopts the delayed alarm mode.
In the various embodiments described above, 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.
The various embodiments described above only are used to illustrate 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 solution 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;
Described master control system is passed through enabling signal with detected low-voltage and is sent to described pitch-controlled system low-voltage and passes through in the control module, triggers described pitch-controlled system and enters low-voltage and pass through state; Described pitch-controlled system transfers to described pitch-controlled system low-voltage with status signal and control signal through described change oar butt joint master control system control module and passes through in the control module, the state of pitch-controlled system during reflecting described low-voltage and pass through by status signal, described control signal is controlled described 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 described master control system in real time;
When low-voltage pass through by after, described pitch-controlled system low-voltage is passed through the finish command signal that control module sends according to described master control system and is withdrawed from control to described pitch-controlled system, is received the control signal of master control system by described 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: described 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, described status signal monitoring modular was monitored it after receiving the status signal that described pitch-controlled system sends, and status signal is back to described master control system through described change oar butt joint master control system control module; Described fault masking time delay module passes through signal to low-voltage and carries out shielding processing, and by described 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 described fault masking time delay module adopts the delayed alarm mode.
4. a kind of double-feedback aerogenerator group low-voltage as claimed in claim 1 or 2 is passed through variable blade control system, it is characterized in that: described 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.
CN201010273061A 2010-09-03 2010-09-03 Low voltage ride-through variable pitch control system for double-fed wind turbine generator unit Active CN101964533B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073504A2 (en) 2010-11-30 2012-06-07 Mitsubishi Heavy Industries, Ltd. Power generating apparatus of renewable energy type and operation method thereof
CN102646993A (en) * 2012-04-25 2012-08-22 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
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
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
US8622719B2 (en) 2010-11-30 2014-01-07 Mitsubishi Heavy Industries, Ltd. Hydraulic pump structure for wind turbine generator or tidal current generator and method of mounting hydraulic pump

Citations (5)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012073504A2 (en) 2010-11-30 2012-06-07 Mitsubishi Heavy Industries, Ltd. Power generating apparatus of renewable energy type and operation method thereof
US8622719B2 (en) 2010-11-30 2014-01-07 Mitsubishi Heavy Industries, Ltd. Hydraulic pump structure for wind turbine generator or tidal current generator and method of mounting hydraulic pump
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
CN102646993A (en) * 2012-04-25 2012-08-22 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
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

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