CN103995527A - Temperature acquisition device for gear box of wind turbine generator system - Google Patents

Temperature acquisition device for gear box of wind turbine generator system Download PDF

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Publication number
CN103995527A
CN103995527A CN201410196672.4A CN201410196672A CN103995527A CN 103995527 A CN103995527 A CN 103995527A CN 201410196672 A CN201410196672 A CN 201410196672A CN 103995527 A CN103995527 A CN 103995527A
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CN
China
Prior art keywords
temperature acquisition
bang path
way switch
road
bridge
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CN201410196672.4A
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Chinese (zh)
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CN103995527B (en
Inventor
袁靖
曾宪文
高桂革
肖浩
王晖
尹万杰
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上海电机学院
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Publication of CN103995527A publication Critical patent/CN103995527A/en
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Abstract

The invention provides a temperature acquisition device for a gear box of a wind turbine generator system. The temperature acquisition device comprises a first temperature acquisition transfer path, a second temperature acquisition transfer path and a third temperature acquisition transfer path, wherein the first temperature acquisition transfer path, the second temperature acquisition transfer path and the third temperature acquisition transfer path are the same and are connected in parallel. When any temperature acquisition transfer path breaks down, the broken-down temperature acquisition transfer path is turned off automatically and conducts automatic data processing, and meanwhile the other temperature acquisition transfer paths work normally.

Description

Wind-driven generator group wheel box temperature collecting device

Technical field

The present invention relates to wind power generation field, more particularly, the present invention relates to a kind of wind-driven generator group wheel box temperature collecting device based on parallel fault-tolerant control.

Background technology

For the collection of wind-driven generator group wheel box temperature, generally application is general method, adopts single temperature sensor to carry out collecting temperature.

But, the scheme reliability that the single temperature sensor of this employing of the prior art carrys out collecting temperature is lower, if sensor breaks down, the temperature of gear case, especially the temperature acquisition of lubricating oil is not accurate enough, is directly that the heat exchange of lubricating oil is below affected, thereby affects the normal operation of gear case, gently make gear case damage, heavy whole wind power generating set is paralysed.

Therefore, hope can provide a kind of technical scheme of the accurate and reliability that can ensure gear case temperature acquisition.

Summary of the invention

Technical matters to be solved by this invention is for there being above-mentioned defect in prior art, a kind of wind-driven generator group wheel box temperature collecting device based on parallel fault-tolerant control is provided, it can ensure the accurate and reliability of gear case temperature acquisition, thereby improve the reliability of the normal work of gear case, guarantee gear case runs well, thereby ensures that wind power generating set can not cause because of the fault of gear case heavy losses.

In order to realize above-mentioned technical purpose, according to the present invention, a kind of wind-driven generator group wheel box temperature collecting device is provided, and it comprises: the first identical temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path of parallel join; Wherein, in the time that temperature acquisition bang path breaks down arbitrarily, this temperature acquisition bang path disconnects automatically, and carries out automatic data processing, and other temperature acquisition bang path is normally worked simultaneously.

Preferably, the first temperature acquisition bang path comprises the first road and bridge, the first multi-way switch, the first amplifier and the first analog to digital converter that connect successively; The second temperature acquisition bang path comprises the second road and bridge, the second multi-way switch, the second amplifier and the second analog to digital converter that connect successively; The 3rd temperature acquisition bang path comprises the Third Road bridge, the 3rd multi-way switch, the 3rd amplifier and the 3rd analog to digital converter that connect successively.

Preferably, described wind-driven generator group wheel box temperature collecting device also comprises: beacon element, for detection of and react the duty of the first road and bridge, the second road and bridge and Third Road bridge, and the indicator signal of duty that represents the first road and bridge, the second road and bridge and Third Road bridge is inputed to respectively to the first input end of the first multi-way switch, the second multi-way switch and the 3rd multi-way switch.Described wind-driven generator group wheel box temperature collecting device also comprises: host circuit; Wherein, the second input end that the first road and bridge, the second road and bridge and Third Road bridge are used for gathering wind-driven generator group wheel box temperature and the signal that represents the wind-driven generator group wheel box temperature collecting are inputed to respectively to the first multi-way switch, the second multi-way switch and the 3rd multi-way switch; The first multi-way switch, the second multi-way switch and the 3rd multi-way switch are respectively according to amplifying and analog-to-digital multi-way switch output signal to host circuit output experience via the first amplifier and the first analog to digital converter, the second amplifier and the second analog to digital converter and the 3rd amplifier and the 3rd analog to digital converter respectively from first input end and the second input end receive separately signal.

Preferably, described wind-driven generator group wheel box temperature collecting device also comprises: the recovery reentry unit being connected with host circuit, and for system being resumed work according to the instruction of host circuit.

Preferably, host circuit in the data that receive from the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path in target offset scope, judgement does not have fault and tries to achieve the mean value of the data that receive from the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path, as being gear case Current Temperatures.

Thus, the invention provides a kind of wind-driven generator group wheel box temperature collecting device based on parallel fault-tolerant control, it can ensure the accurate and reliability of gear case temperature acquisition, thereby improve the reliability of the normal work of gear case, guarantee gear case runs well, thereby ensures that wind power generating set can not cause because of the fault of gear case heavy losses.

Brief description of the drawings

By reference to the accompanying drawings, and by reference to detailed description below, will more easily there is more complete understanding to the present invention and more easily understand its advantage of following and feature, wherein:

Fig. 1 schematically shows the block diagram of wind-driven generator group wheel box temperature collecting device according to the preferred embodiment of the invention.

Fig. 2 schematically shows the workflow diagram of wind-driven generator group wheel box temperature collecting device according to the preferred embodiment of the invention.

It should be noted that, accompanying drawing is used for illustrating the present invention, and unrestricted the present invention.Note, the accompanying drawing that represents structure may not be to draw in proportion.And in accompanying drawing, identical or similar element indicates identical or similar label.

Embodiment

In order to make content of the present invention more clear and understandable, below in conjunction with specific embodiments and the drawings, content of the present invention is described in detail.

The present invention mainly adopts for subsequent use fault-tolerant and system of process channel, hardware redundancy to recover and reentry technology.Wherein, adopt parallel fault-tolerant control technology, design the identical input channel of three covers, three's status is identical, for input channel, the data that gather through three are all sent into CPU, compared by CPU, majority the person of conforming to add their confirmation for correct value, if three is all not identical, can further carry out self diagnosis separately, adopting self diagnosis confirmation does not have the data of faulty channel.

Specifically, can adopt three articles of identical temperature acquisition bang paths (the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path) of parallel join; Wherein, in the time that temperature acquisition bang path breaks down arbitrarily, this temperature acquisition bang path disconnects automatically, and carries out automatic data processing, and other temperature acquisition bang path is normally worked simultaneously.

Specifically describe the preferred embodiments of the present invention below.

Fig. 1 schematically shows the block diagram of wind-driven generator group wheel box temperature collecting device according to the preferred embodiment of the invention.

As shown in Figure 1, wind-driven generator group wheel box temperature collecting device comprises according to the preferred embodiment of the invention: three articles of identical temperature acquisition bang paths (the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path) of parallel join; Wherein the first temperature acquisition bang path comprises the first road and bridge 11, the first multi-way switch 21, the first amplifier 31 and the first analog to digital converter 41 that connect successively; The second temperature acquisition bang path comprises the second road and bridge 12, the second multi-way switch 22, the second amplifier 32 and the second analog to digital converter 42 that connect successively; The 3rd temperature acquisition bang path comprises the Third Road bridge 13, the 3rd multi-way switch 23, the 3rd amplifier 33 and the 3rd analog to digital converter 43 that connect successively.

Wind-driven generator group wheel box temperature collecting device also comprises according to the preferred embodiment of the invention: beacon element 20, for detection of and react the duty of the first road and bridge 11, the second road and bridge 12 and Third Road bridge 13, and the indicator signal of duty that represents the first road and bridge 11, the second road and bridge 12 and Third Road bridge 13 is inputed to respectively to the first input end of the first multi-way switch 21, the second multi-way switch 22 and the 3rd multi-way switch 23.

Wind-driven generator group wheel box temperature collecting device also comprises according to the preferred embodiment of the invention: host circuit 30, and the display 40 being connected with host circuit 30 respectively, recover reentry unit 50, input block (for example keyboard) 60.

Wherein, the first road and bridge 11, the second road and bridge 12 and Third Road bridge 13 are for gathering wind-driven generator group wheel box temperature (temperature of acquisition target 10) and the signal that represents the wind-driven generator group wheel box temperature that collects being inputed to respectively to the second input end of the first multi-way switch 21, the second multi-way switch 22 and the 3rd multi-way switch 23.

For example, respectively corresponding three light emitting diodes of the duty of the first road and bridge 11, the second road and bridge 12 and Third Road bridge 13, if normally use LED lighting instruction, if having fault diode extinguish.

The first multi-way switch 21, the second multi-way switch 22 and the 3rd multi-way switch 23 are respectively according to amplifying and analog-to-digital multi-way switch output signals to host circuit 30 output experience via the first amplifier 31 and the first analog to digital converter 41, the second amplifier 32 and the second analog to digital converter 42 and the 3rd amplifier 33 and the 3rd analog to digital converter 43 respectively from first input end and the second input end receive separately signal.That is, multi-way switch can be realized Dang Ci road while breaking down, can disconnect on Jiang Ci road, so that handling failure.

As the recovery reentry unit 50 of optional use for according to the instruction of host circuit 30 (for example system be interfered program fleet or while crashing) system is resumed work.

Display 40 can adopt 8 light-emitting diode displays, front four demonstrations be to analyze the actual temperature value of exporting after data, latter four is failure code in the time that system has fault; Vice versa.

Wind-driven generator group wheel box temperature collecting device also comprises according to the preferred embodiment of the invention: first drives 71 and second to drive 72, it is respectively actual temperature and the ideal temperature result pilot lamp after relatively, for example can use red and green light emitting diode, if actual temperature is higher than ideal temperature, red diode is bright, if actual temperature is lower than ideal temperature, green diode is bright.What wherein keyboard 60 was inputted is the setting of the ideal temperature of gear case.

Fig. 2 schematically shows the workflow diagram of wind-driven generator group wheel box temperature collecting device according to the preferred embodiment of the invention.

As shown in Figure 2, when start, first carry out System self-test, comprise the self-inspection of CPU, storer, A/D process channel, display reminding information.As diagnosis just shows failure code to fault, if do not have fault to enter the thermometric stage.When system is normally worked, also can carry out cycle self-inspection.In the time finding fault, take fault-tolerant measure, normally work with guarantee system, and for example, in part viewing area (rear four LED) upper demonstration thermometric value, (for example front four LED) upper failure code that shows in part viewing area.Program fleet or deadlock if system is interfered, system is recovered and reentry unit works, and it is resumed work.For example, if certain branch road has fault, Ze Ci road is disconnected automatically, and carries out automatic data processing, and two-way is still worked in addition, has therefore realized fault-tolerant.

Host circuit 30 in the data that receive from the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path in target offset scope, judge and there is no fault (for example self-detection result is not for there is no fault), and try to achieve the mean value of the data that receive from the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path, as being gear case Current Temperatures.This gear case Current Temperatures is exportable and in front four demonstrations of display (or otherwise showing).If three differs greatly (not within the scope of target offset), can further carry out self diagnosis separately, adopt self diagnosis and confirm not have the data of out of order passage.

For example, said apparatus can for example, be powered by one or more stabilized voltage supplys (, the first stabilized voltage supply 1 and the second stabilized voltage supply 2).

The present invention has simple in structure, high-efficient light, the advantages such as low price.The temperature acquisition that ensures gear case is accurate, and reliability is higher, thereby ensures temperature control accurately and reliably, improves wind power generating set reliability of operation.

In addition, the present invention at least has following favorable characteristics:

1, suppress to disturb, program fleet or deadlock if system is interfered, system is recovered and reentry unit works, and it is resumed work.

2, the automatic detection of fault, when start, first carries out System self-test, comprises the self-inspection of CPU, storer, A/D process channel, display reminding information.As diagnosis just shows failure code to fault, if do not have fault to enter the thermometric stage.

3, mask the impact of sensor fault by redundant element.

In addition, it should be noted that, unless stated otherwise or point out, otherwise the descriptions such as term " first " in instructions, " second ", " the 3rd " are only for distinguishing each assembly, element, step of instructions etc., instead of for representing logical relation or the ordinal relation etc. between each assembly, element, step.

Be understandable that, although the present invention discloses as above with preferred embodiment, but above-described embodiment is not in order to limit the present invention.For any those of ordinary skill in the art, do not departing from technical solution of the present invention scope situation, all can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all still belongs in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to technical spirit of the present invention.

Claims (5)

1. a wind-driven generator group wheel box temperature collecting device, is characterized in that comprising: the first identical temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path of parallel join; Wherein, in the time that temperature acquisition bang path breaks down arbitrarily, this temperature acquisition bang path disconnects automatically, and carries out automatic data processing, and other temperature acquisition bang path is normally worked simultaneously.
2. wind-driven generator group wheel box temperature collecting device according to claim 1, is characterized in that, the first temperature acquisition bang path comprises the first road and bridge, the first multi-way switch, the first amplifier and the first analog to digital converter that connect successively; The second temperature acquisition bang path comprises the second road and bridge, the second multi-way switch, the second amplifier and the second analog to digital converter that connect successively; The 3rd temperature acquisition bang path comprises the Third Road bridge, the 3rd multi-way switch, the 3rd amplifier and the 3rd analog to digital converter that connect successively.
3. wind-driven generator group wheel box temperature collecting device according to claim 2, is characterized in that described wind-driven generator group wheel box temperature collecting device also comprises:
Beacon element, for detection of and react the duty of the first road and bridge, the second road and bridge and Third Road bridge, and the indicator signal of duty that represents the first road and bridge, the second road and bridge and Third Road bridge is inputed to respectively to the first input end of the first multi-way switch, the second multi-way switch and the 3rd multi-way switch;
Described wind-driven generator group wheel box temperature collecting device also comprises: host circuit;
Wherein, the second input end that the first road and bridge, the second road and bridge and Third Road bridge are used for gathering wind-driven generator group wheel box temperature and the signal that represents the wind-driven generator group wheel box temperature collecting are inputed to respectively to the first multi-way switch, the second multi-way switch and the 3rd multi-way switch;
The first multi-way switch, the second multi-way switch and the 3rd multi-way switch are respectively according to amplifying and analog-to-digital multi-way switch output signal to host circuit output experience via the first amplifier and the first analog to digital converter, the second amplifier and the second analog to digital converter and the 3rd amplifier and the 3rd analog to digital converter respectively from first input end and the second input end receive separately signal.
4. wind-driven generator group wheel box temperature collecting device according to claim 1 and 2, characterized by further comprising: the recovery reentry unit being connected with host circuit, and for system being resumed work according to the instruction of host circuit.
5. wind-driven generator group wheel box temperature collecting device according to claim 1 and 2, it is characterized in that, host circuit in the data that receive from the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path in target offset scope, judgement does not have fault and tries to achieve the mean value of the data that receive from the first temperature acquisition bang path, the second temperature acquisition bang path and the 3rd temperature acquisition bang path, as being gear case Current Temperatures.
CN201410196672.4A 2014-05-09 2014-05-09 Wind-driven generator group wheel box temperature collecting device CN103995527B (en)

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CN1769852A (en) * 2004-11-04 2006-05-10 通用电气公司 Data collection of integrated test platform of high-level hydraulic pressure
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Publication number Priority date Publication date Assignee Title
CN1769852A (en) * 2004-11-04 2006-05-10 通用电气公司 Data collection of integrated test platform of high-level hydraulic pressure
CN101634866A (en) * 2009-02-10 2010-01-27 广州市高澜水技术有限公司 Control system of pure water cooling device of high voltage direct current (HVDC) transmission converter valve
CN101813920A (en) * 2010-05-14 2010-08-25 上海交通大学 Virtual redundancy method for temperature sensor of power station turboset
US20120087726A1 (en) * 2010-10-07 2012-04-12 Caterpillar, Inc. Electric Screed Heat Control System and Method of Heating Screed Plates
JP2013047512A (en) * 2011-07-21 2013-03-07 Nuovo Pignone Spa System and method for auto-tuning combustion system of gas turbine
CN102830693A (en) * 2012-08-10 2012-12-19 中国电力科学研究院 Control system and control method for low-voltage transverse test equipment of wind turbine generator
CN202994473U (en) * 2013-01-11 2013-06-12 华北电力大学 Wind power generation unit vibration on-line monitoring and fault diagnosis system

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