CN107347003A - The method and apparatus and wind power generating set of automatic switchover communication line - Google Patents

The method and apparatus and wind power generating set of automatic switchover communication line Download PDF

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Publication number
CN107347003A
CN107347003A CN201610292886.0A CN201610292886A CN107347003A CN 107347003 A CN107347003 A CN 107347003A CN 201610292886 A CN201610292886 A CN 201610292886A CN 107347003 A CN107347003 A CN 107347003A
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China
Prior art keywords
communication line
communication
controller
wind power
power generating
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Granted
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CN201610292886.0A
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Chinese (zh)
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CN107347003B (en
Inventor
刘杰
陶建权
陶友传
韩花丽
王英
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China Shipbuilding Heavy Industry Offshore Wind Power Ltd By Share Ltd
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China Shipbuilding Heavy Industry Offshore Wind Power Ltd By Share Ltd
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Priority to CN201610292886.0A priority Critical patent/CN107347003B/en
Publication of CN107347003A publication Critical patent/CN107347003A/en
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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/22Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D7/00Controlling wind motors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00Arrangements for maintenance or administration or management of packet switching networks
    • H04L41/06Arrangements for maintenance or administration or management of packet switching networks involving management of faults or events or alarms
    • H04L41/0654Network fault recovery
    • H04L41/0659Network fault recovery by isolating the faulty entity
    • H04L41/0663Network fault recovery by isolating the faulty entity involving offline failover planning
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00Control
    • F05B2270/30Control parameters, e.g. input parameters
    • F05B2270/328Blade pitch angle
    • 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

Abstract

The invention discloses a kind of method and apparatus and wind power generating set of automatic switchover communication line.A kind of method of automatic switchover communication line, suitable for the first device of wind power generating set, including:First device sends first state word to second device simultaneously by main communication line and from communication line;First device receives second device and passes through main communication line and the second status word returned simultaneously from communication line;First device judge respectively by main communication line and from communication line transmit first state word and the second status word it is whether consistent, according to judged result automatic switchover communication line.The automatic switchover for solving the problems, such as master-slave communication circuit in the communication system of wind power generating set by the present invention uses.

Description

The method and apparatus and wind power generating set of automatic switchover communication line
Technical field
The present invention relates to technical field of wind power generation, more particularly to the method and apparatus and wind power generating set of automatic switchover communication line.
Background technology
With increasingly sharpening for energy crisis and environmental crisis, wind generating technology has obtained quick development as a clean energy technology.Wherein, wind power generating set is as the main execution equipment for realizing wind-driven generator, mainly it is made up of column foot controller, nacelle controller, current transformer and four big system of pitch-controlled system, the master controller of wind power generating set generally by PROFIBUS communications protocol or CAN agreement, carries out communication with four big systems of wind power generating set and is connected.
In master controller and the communication process of four big systems, if communication line is disturbed or interrupted strongly, unit will be shut down, to ensure the security of unit.Because communication failure investigation and circuit recover time-consuming longer, it will usually which installation is from communication line in the communication system in wind power generating set, for safeguarding and substituting original circuit.But in the prior art, the communication system of wind power generating set from communication line be not implemented with main communication line incoming communication system simultaneously, and then and be solves the problems, such as in the communication system of wind power generating set main communication line and automatically switch use from communication line.
The content of the invention
Above mentioned problem is directed to, the present invention provides a kind of method and apparatus and wind power generating set of automatic switchover communication line, to solve the problems, such as the automatic switchover of master-slave communication circuit in the communication system of wind power generating set use.
To solve above-mentioned technical problem, according to the first aspect of the invention, provide a kind of method of automatic switchover communication line, suitable for the first device of wind power generating set, when the first device is master controller, the second device of the wind power generating set is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, when the first device is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, the second device is master controller;Main communication line is mounted in parallel between the first device and the second device and is included from communication line, the method for the automatic switchover communication line:
The first device by the main communication line and it is described from communication line simultaneously to the second device send first state word;
The first device receives the second device and passes through the main communication line and second status word returned simultaneously from communication line;
The first device judges whether the first state word transmitted by the main communication line and second status word are consistent;
If consistent, the first device uses the communication information of the main communication line;
If inconsistent, when the first device judges consistent with second status word by the first state word transmitted from communication line, then the first device automatically switches to described from communication line, using the communication information from communication line.
Preferably, in addition to:
When the first device judges inconsistent by the first state word and second status word transmitted from communication line, the first device confirms communication failures, and counts time or the number of communication failures.
Preferably, after the time of first device statistics communication failures or number, in addition to:
The first device judges whether the time of the communication failures or number are more than corresponding predetermined value;If it is, the communication of the first device and the second device is failed, the first device and second device communication are lost, and the wind power generating set is shut down.
Preferably, the time predetermined value of the communication failures is 200 milliseconds.
Preferably, the number predetermined value of the communication failures is 10 times.
According to the second aspect of the invention, provide a kind of device of automatic switchover communication line, suitable for the first device of wind power generating set, when the first device is master controller, the second device of the wind power generating set is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, when the first device is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, the second device is master controller;Main communication line is mounted in parallel between the first device and the second device and is included from communication line, the device of the automatic switchover communication line:
Transmitting element, for by the main communication line and it is described from communication line simultaneously to the second device send first state word;
Receiving unit, for receive the second device by the main communication line and it is described from communication line and meanwhile return the second status word;
Whether the first judging unit, the first state word and second status word for judging to transmit by the main communication line are consistent;
First execution unit, for when the judged result of first judging unit is consistent, making the first device use the communication information of the main communication line;
Second judging unit, it is whether consistent by the first state word and second status word transmitted from communication line for when the judged result of first judging unit is inconsistent, judging;
Second execution unit, for when the judged result of second judging unit is consistent, automatically switching to the first device described from communication line, using the communication information from communication line.
Preferably, in addition to:
Statistic unit, for when the judged result of second judging unit is inconsistent, the first device to confirm communication failures, and counts time or the number of communication failures.
Preferably, in addition to:
Whether comparing unit, time or number for judging the communication failures are more than corresponding predetermined value;
3rd execution unit, for when the judged result of the comparing unit be more than when, the first device and second device communication are lost, and are performed the wind power generating set and are shut down.
According to the third aspect of the present invention, there is provided a kind of wind power generating set, including:Master controller, column foot controller, nacelle controller, current transformer and pitch-controlled system, wherein the master controller, column foot controller, nacelle controller, current transformer and pitch-controlled system are provided with the device with the automatic switchover communication line according to any one of foregoing second aspect.
Compared to prior art, between the first device that is mutually communicated in wind power generating set of the present invention and second device while it is mounted in parallel two communication lines, by adding status word, whether the device communicate in wind power generating set can effective with automatic decision Content of communciation, and then when using master-slave communication circuit at the same time, it is possible to achieve the automatic switchover of communication line.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only embodiments of the invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to the accompanying drawing of offer.
Fig. 1 is the method flow schematic diagram for the automatic switchover communication line that the embodiment of the present invention one provides;
Fig. 2 is the apparatus structure schematic diagram for the automatic switchover communication line that the embodiment of the present invention two provides;
Fig. 3 is the attachment structure schematic diagram of first device and second device in the embodiment of the present invention;
Fig. 4 is a kind of wind power generating set provided in an embodiment of the present invention;
Fig. 5 is the method flow schematic diagram for the automatic switchover communication line that the embodiment of the present invention three provides.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Term " first " and " second " in description and claims of this specification and above-mentioned accompanying drawing etc. are for distinguishing different objects, rather than for describing specific order.In addition term " comprising " and " having " and their any deformations, it is intended that cover non-exclusive include.Such as contain process, method, system, product or the equipment of series of steps or unit and be not set in the step of having listed or unit, but the step of may include not list or unit.
Embodiment one
Referring to the method flow schematic diagram that Fig. 1 is the automatic switchover communication line that the embodiment of the present invention one provides, this method is applied to the first device of wind power generating set, when the first device is master controller, the second device of the wind power generating set is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, when the first device is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, the second device is master controller;Main communication line is mounted in parallel between the first device and the second device and from communication line, specific connected mode refers to Fig. 3, two communication lines are mounted in parallel between first device 301 and second device 302, i.e. main communication line 303 and from communication line 304, the first device 301 and the second device 302 by the main communication line 303 or it is described communicated from communication line 304, the method for automatic switchover communication line specifically includes following steps:
Step 101:The first device by the main communication line and it is described from communication line simultaneously to the second device send first state word after, into step 102;
In step 101 is performed, the status word is the status indication word added in the communications protocol of each device mutually communicated, and status indication word can be similar to heartbeat signal or other cumulative number signals that can be used for judging communication line state.
Step 102:The first device receives the second device by the main communication line and second status word returned from communication line simultaneously after, into step 103;
Wherein, the second device first receives the information with first state word that the first device is sent, and this status word is put into feedback information, by the main communication line and described from communication line simultaneous transmission to first device, then, the first device receives the feedback information with the second status word that the second device is returned by two communication lines.
Step 103:The first device judges whether the first state word transmitted by the main communication line and second status word are consistent, if unanimously entering step 104, if inconsistent enter step 105;
Step 104:The first device uses the communication information of the main communication line;
Step 105:The first device judge it is whether consistent by the first state word and second status word that are transmitted from communication line, if unanimously entering step 106;
Step 106:The first device is automatically switched to from communication line, using the communication information from communication line.
The method for the automatic switchover communication line that the embodiment of the present invention one is provided, it is to be illustrated by taking the first device of wind power generating set as an example, the second device of same wind power generating set can also use this method when being communicated with first device, automatic switchover communication line.
The method for the automatic switchover communication line that the embodiment of the present invention one is provided, first device in the communication information communicated with second device by adding status word, and then judge whether transmitted status word and the status word received are consistent, it may determine that the credibility for the communication information that communication line is transmitted, so when first device uses master-slave communication circuit at the same time, it is possible to achieve the automatic switchover of communication line.
Further, after step 106, in addition to:
Step 107:When the first device judges inconsistent by the first state word and second status word transmitted from communication line, the first device confirms communication failures, and counts time or the number of communication failures;
Wherein, the time of the first device statistics communication failures or number, be between the first device and the second device by two described communication lines communicated fail after carry out, the time of the communication failures or number can be counted simultaneously, i.e. the number of the time of first device statistics communication failures and first device statistics communication failures;Individually the time or number of communication failures can also be counted, i.e. the time of first device statistics communication failures, or first device counts the number of communication failures, the particular content for counting communication failures in embodiments of the invention to first device does not limit.
Further, after step 107, in addition to:
Step 108:The first device judges whether the time of the communication failures or number are more than corresponding predetermined value;If it is, into step 109;
Wherein, preferably the time predetermined value of the communication failures is 200 milliseconds in the inventive solutions;The number predetermined value of the communication failures is 10 times.But, the predetermined value can be definite numerical value, it can also be number range, mainly according to the predetermined value of specific communication device in wind power generating set, the concrete numerical value or number range of the predetermined value are not all to be configured according to actual conditions, do not do clear and definite restriction to the predetermined value in an embodiment of the present invention.
Step 109:The communication of the first device and the second device is failed, and the first device and second device communication are lost, and the wind power generating set is shut down.
Embodiment two
Referring to the apparatus structure schematic diagram that Fig. 2 is the automatic switchover communication line that the embodiment of the present invention two provides, the device is applied to the first device of wind power generating set, when the first device is master controller, the second device of the wind power generating set is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, when the first device is any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, the second device is master controller;Main communication line is mounted in parallel between the first device and the second device and from communication line, the specific annexation of the first device and the second device refers to the explanation in Fig. 3 and the embodiment of the present invention one, and here is omitted.The device of the automatic switchover communication line specifically includes:
Receiving unit 201, for receive the second device by the main communication line and it is described from communication line and meanwhile return the second status word;
Whether the first judging unit 202, the first state word and second status word for judging to transmit by the main communication line are consistent;
First execution unit 203, for when the judged result of first judging unit 202 is consistent, making the first device use the communication information of the main communication line;
Second judging unit 204, it is whether consistent by the first state word and second status word transmitted from communication line for when the judged result of first judging unit 202 is inconsistent, judging;
Second execution unit 205, for when the judged result of second judging unit 204 is consistent, automatically switching to the first device described from communication line, using the communication information from communication line.
The device for the automatic switchover communication line that the embodiment of the present invention two is provided, mainly it is sent to the first state word of the second device by the main communication line to the first device by the first judging unit, whether the second status word returned with the second device of reception is consistent, to judge whether the communication information of the main communication line is credible, when the communication information of main communication line is insincere, second judging unit uses same judgment mode, to judge whether the communication information from communication line is credible, if it is credible automatically switch to it is described from communication line, and then realize the automatic switchover of communication line.
Further, in some embodiments of the invention, the device of automatic switchover communication line, can also include:
Statistic unit 206, for when the judged result of second judging unit is inconsistent, the first device to confirm communication failures, and counts time or the number of communication failures.
It should be noted that, the statistic unit 206 counts time or the number of communication failures, be between the first device and the second device by two described communication lines communicated fail after carry out, the time of the communication failures or number can be counted simultaneously, i.e., statistic unit 206 counts the time of communication failures and the number of statistics communication failures;Individually the time or number of communication failures can also be counted, that is, count the time of communication failures, or the number of statistics communication failures, the particular content for counting communication failures in embodiments of the invention to statistic unit 206 does not limit.
Further, the device also includes:
Whether comparing unit 207, time or number for judging the communication failures are more than corresponding predetermined value;
It should be noted that, the predetermined value set in the comparing unit 207, can be definite numerical value, it can also be number range, mainly according to the predetermined value of specific communication device in wind power generating set, the concrete numerical value or number range of the predetermined value are not all to be configured according to actual conditions, do not do clear and definite restriction to the predetermined value in an embodiment of the present invention.
3rd execution unit 208, for when the judged result of the comparing unit be more than when, the first device and second device communication are lost, and are performed the wind power generating set and are shut down.
Referring to Fig. 4, the embodiment of the present invention additionally provides a kind of wind power generating set, including:Master controller 401, column foot controller 402, nacelle controller 403, current transformer 404, pitch-controlled system 405, wherein described master controller 401, column foot controller 402, nacelle controller 403, current transformer 404, pitch-controlled system 405 are respectively provided with the device with the automatic switchover communication line described according to embodiments of the present invention two, the embodiment of the present invention two specifically is referred to, here is omitted.
Embodiment three
In the embodiment three, exemplified by communication process mainly between the master controller and nacelle controller of wind-driven generator, master and slave two communication lines have been mounted in parallel between the master controller and the nacelle controller, specific to refer to the method flow schematic diagram that Fig. 5 is the automatic switchover communication line that the embodiment of the present invention three provides, this method comprises the following steps:
Step 501:The master controller by the main communication line and it is described from communication line simultaneously to the nacelle controller send first state word after, into step 502;
Step 502:The master controller receives the nacelle controller by the main communication line and second status word returned from communication line simultaneously after, into step 503;
Step 503:The master controller judges whether the first state word transmitted by the main communication line and second status word are consistent, if unanimously entering step 504, if inconsistent enter step 505;
Step 504:The master controller uses the communication information of the main communication line;
Step 505:The master controller judge it is whether consistent by the first state word and second status word that are transmitted from communication line, if unanimously entering step 506;
Step 506:The master controller is automatically switched to from communication line, using the communication information from communication line.
The method of automatic switchover communication line between the master controller and nacelle controller of the wind-driven generator that the embodiment of the present invention three is provided, wherein, master controller in the communication information communicated with nacelle controller by adding status word, and then judge whether transmitted status word and the status word received are consistent, it may determine that the credibility for the communication information that communication line is transmitted, so when master controller uses master-slave communication circuit at the same time, it is possible to achieve the automatic switchover of communication line.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.A variety of modifications to these embodiments be will be apparent for those skilled in the art, and generic principles defined herein can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the most wide scope consistent with principles disclosed herein and features of novelty.

Claims (9)

  1. A kind of 1. method of automatic switchover communication line, it is characterised in that suitable for wind power generating set First device, when the first device is master controller, the second device of the wind power generating set is Any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, when the described first dress When being set to any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, described Two devices are master controller;Main communication line is mounted in parallel between the first device and the second device Include with the method from communication line, the automatic switchover communication line:
    The first device by the main communication line and it is described from communication line simultaneously to described second dress Put and send first state word;
    The first device receives the second device and passes through the main communication line and described from communication line The second status word returned simultaneously;
    The first device judge by the first state word of the main communication line transmission with it is described Whether the second status word is consistent;
    If consistent, the first device uses the communication information of the main communication line;
    If inconsistent, when the first device is judged by described from described the first of communication line transmission When status word is consistent with second status word, then the first device automatically switches to described from connection Road, using the communication information from communication line.
  2. 2. according to the method for claim 1, it is characterised in that also include:
    When the first device judge by it is described from the first state word that communication line transmits with it is described When second status word is inconsistent, the first device confirms communication failures, and counts the time of communication failures Or number.
  3. 3. according to the method for claim 2, it is characterised in that count and communicate in the first device After the time of failure or number, in addition to:
    The first device judges whether the time of the communication failures or number are more than corresponding predetermined value; If it is, the communication of the first device and the second device is failed, the first device and institute State second device communication to lose, the wind power generating set is shut down.
  4. 4. according to the method for claim 3, it is characterised in that the time of the communication failures makes a reservation for It is worth for 200 milliseconds.
  5. 5. according to the method for claim 3, it is characterised in that the number of the communication failures makes a reservation for It is worth for 10 times.
  6. 6. a kind of device of automatic switchover communication line, it is characterised in that suitable for wind power generating set First device, when the first device is master controller, the second device of the wind power generating set is Any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, when the described first dress When being set to any one in column foot controller, nacelle controller, current transformer or pitch-controlled system, described Two devices are master controller;Main communication line is mounted in parallel between the first device and the second device Include with the device from communication line, the automatic switchover communication line:
    Transmitting element, for passing through the main communication line and described from communication line simultaneously to described second Device sends first state word;
    Receiving unit, pass through the main communication line and described from connection for receiving the second device The second status word that road returns simultaneously;
    First judging unit, for the first state word for judging to transmit by the main communication line It is whether consistent with second status word;
    First execution unit, for when the judged result of first judging unit is consistent, making described First device uses the communication information of the main communication line;
    Second judging unit, for when the judged result of first judging unit is inconsistent, judging It is whether consistent by the first state word and second status word transmitted from communication line;
    Second execution unit, for when the judged result of second judging unit is consistent, making described First device automatically switch to it is described from communication line, using the communication information from communication line.
  7. 7. device according to claim 6, it is characterised in that also include:
    Statistic unit, for when second judging unit judged result for it is inconsistent when, described first Device confirms communication failures, and counts time or the number of communication failures.
  8. 8. device according to claim 7, it is characterised in that also include:
    Whether comparing unit, time or number for judging the communication failures are more than corresponding predetermined value;
    3rd execution unit, for when the comparing unit judged result be more than when, it is described first dress Put to communicate with the second device and lose, perform the wind power generating set and shut down.
  9. A kind of 9. wind power generating set, it is characterised in that including:Master controller, column foot controller, machine Cabin controller, current transformer and pitch-controlled system, wherein the master controller, column foot controller, cabin control The automatic switchover that device, current transformer and pitch-controlled system are provided with as described in any one of claim 6 to 8 is led to Interrogate the device of circuit.
CN201610292886.0A 2016-05-05 2016-05-05 Method and device for automatically switching communication lines and wind generating set Active CN107347003B (en)

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CN112145370A (en) * 2020-09-04 2020-12-29 上海电气风电集团股份有限公司 Communication quality detection method, system and readable storage medium

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