CN114508465A - Online testing system and method for lead wire breakage of wind generating set blade - Google Patents

Abstract

The invention discloses a system and a method for online testing the lead wire breakage of a blade of a wind generating set, wherein the system comprises a blade and a lightning conductor arranged in the blade; the method is characterized in that: an active transmitting device and a high-frequency sensor system are respectively arranged at two ends of the lightning conductor, after the active transmitting device loads high-frequency pulses to the lightning conductor, the high-frequency pulses are transmitted to the high-frequency sensor along the lightning conductor, the high-frequency sensor system receives high-frequency pulse signals and is in communication connection with an upper computer system in a wired or wireless mode, and the upper computer system performs on-off alarm of the lightning conductor according to whether the signals are received or not; the system and the method can monitor the lightning protection system of the fan blade in real time, have high efficiency, can detect the lightning protection system without stopping the fan blade, and reduce the economic loss consumed by detection.

Description

Online testing system and method for lead wire breakage of wind generating set blade

Technical Field

The invention belongs to the field of lightning conductor disconnection detection of wind generating sets, and particularly relates to a system and a method for online testing of a blade lead wire disconnection of a wind generating set.

Background

In order to capture more wind energy, a wind generating set usually works in an open area, once thunderstorm cloud crosses the border and is easily damaged by lightning stroke, a mechanical system or an electrical system is easily broken down, serious accidents such as blade explosion, fire and the like can be caused in serious conditions, and long-time shutdown is usually caused, so that a large amount of shutdown loss is caused. In addition, the cost of the wind turbine generator system is high, and a great maintenance cost is generated once the wind turbine generator system is struck by lightning, and particularly, after the blades, the generator and other valuable parts are damaged by the lightning, huge costs are generated in the processes of dismounting, replacing, transporting and the like of the damaged parts besides the loss of power generation caused by shutdown.

Lightning mainly damages the fan through three modes of direct lightning, lightning induction and lightning wave invasion. According to statistics, lightning induction and lightning wave invasion are main reasons for damage of the wind driven generator after lightning stroke, an electric control system (40% -50%), a blade (15% -25%) and a generator (5%) are sequentially arranged from high to low in damage rate of main components after lightning stroke, and the blade, the generator, the electric control system and a communication system are sequentially arranged from high to low in maintenance cost caused by the lightning stroke.

At present, the wind power plant is designed for lightning prevention aiming at the aspects of lightning protection grounding system design and construction, wind turbine generator sets, electrical systems, current collection circuits, communication systems, lightning protection and the like. Factors causing damage to the fan include lightning peak current, current steepness, and transferred charge. According to statistics, the lightning concentration rate of the blade reaches 4%, and the damage rate caused by lightning reaches 15%. The main lightning protection measure of most of the wind turbines is to arrange metal on the surface of glass fiber at the blade tip part to serve as a lightning arrester, lay a low-resistance copper wire inside the blade to serve as a lightning conductor, connect the lightning arrester with the lightning conductor, and connect the other end of the lightning conductor with a metal flange at the blade root. The outer surface metallization is in a net or foil like structure, although lightning strikes may cause such surfaces to locally melt or burn. But will not have too great an effect on the blade and an effective lightning protection can be achieved. However, in the daily operation of the wind turbine, the lightning conductor may have a fault of strand breakage or wire breakage due to the effects of blade surface tension, lightning current scouring and the like, and in this case, once lightning is successfully received, the following serious faults may be caused:

1: the strand breakage fault occurs in the multi-strand soft copper lightning conductor. The very short time of lightning current (in the order of microseconds) means that the temperature rise process of the lightning conductor is adiabatic, i.e. the thermal effect generated by the lightning arc is not as strong as to diffuse out, but is concentrated to a small point. At this time, even a small amount of heat can cause part of strands to reach a melting point and melt, and at the moment, the wind turbine blade is damaged by the heat effect, so that the blade is deformed or cracked;

2: the lightning conductor breaks. When lightning current flows through the lightning conductor once the lightning is successfully received, an arc can appear at the broken line. The intense high temperatures generated during the arcing process can cause severe damage to the blades. This is also the main cause of damage to many wind turbine blades. Once the fault occurs, the blade can be burst, and the personal and property safety is endangered.

In conclusion, the integrity of the lightning conductor is guaranteed, so that the lightning protection of the wind generating set and the safe operation of the set are important, and the detection work of the lightning conductor has great significance.

At present, the main lightning conductor disconnection testing method at home and abroad is an ohm method based on ohm law. The method comprises the steps of connecting a conducting wire with a lightning receptor at a blade tip through a crane or a self-climbing robot to form a loop with the lightning conductor, and then detecting the resistance value of the lightning conductor at a hub, wherein the intact lightning conductor can show an extremely low resistance value, and the completely broken lightning conductor shows an infinite resistance value. Although the method is simple in principle and convenient to operate, the lightning receptors at the tips of the leaves need to be connected, and the conventional detection method needs the assistance of a crane or a self-climbing robot. Such a method is very inefficient and testing a wind turbine incurs significant labor and machinery costs due to the use of specialized aids.

In summary, how to measure the blade lightning conductor with high efficiency and low cost becomes a difficult problem of each wind field. The problem of detecting the broken lightning conductor and the broken strand is solved, and the safety factor of the fan operation is improved. The wind turbine generator system is prevented from running with damage, and potential risks of personnel and property loss are avoided.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a wind generating set blade lead wire disconnection online test system and a method.

In order to solve the technical problem, the following technical scheme is provided in the application.

In a first aspect, the application provides an online test system for lead wire breakage of a blade of a wind generating set, which comprises a blade and a lightning conductor arranged in the blade; an active transmitting device and a high-frequency sensor system are respectively arranged at two ends of the lightning conductor, after the active transmitting device loads high-frequency pulses to the lightning conductor, the high-frequency pulses are transmitted to the high-frequency sensor along the lightning conductor, the high-frequency sensor system receives high-frequency pulse signals and is in communication connection with an upper computer system in a wired or wireless mode, and the upper computer system performs on-off alarm of the lightning conductor according to whether the signals are received or not;

as an embodiment, when the active transmitting device and the high-frequency sensor are arranged on the basis of the first aspect, the active transmitting device is installed at the tip position of each blade, and a flexible PCB solar panel is arranged at the tip position of each blade, and the generated electric energy supplies power to the active transmitting device, and the active transmitting device loads transverse electromagnetic waves to the lightning conductor and uniquely encodes pulse waves of each blade; the high-frequency sensor is arranged on a lower lead of a lightning conductor of a blade root hub of the wind generating set; the high-frequency sensor receives the high-frequency pulse transmitted from the lightning conductor and converts the high-frequency pulse into an electric signal;

as an embodiment, when the upper computer system is implemented on the basis of the first aspect, the upper computer system includes a communication system, a security isolation device, a monitoring system, a historical data analysis system and a disconnection warning system, and has functions of information encryption and bidirectional communication with the edge computing terminal;

as one embodiment, when the active transmitting device is implemented on the basis of the first aspect, the active transmitting device is an active electronic tag, the active electronic tag is arranged inside the blade and is installed in a non-contact manner with the lightning conductor, and the flexible PCB solar panel is installed on the outer wall of the blade; the system needs to have the following functions: 1) the light source can absorb light energy and provide power for the active emitting device; 2) the device can transmit a high-frequency electromagnetic pulse containing blade coding characteristics to the lightning conductor, and the pulse can be coupled to the lightning conductor through a subsequent circuit;

as one embodiment, on the basis of the first aspect, when the high-frequency sensing system is implemented, the high-frequency sensing system includes a high-frequency sensor and a unit edge terminal device, the high-frequency sensor is connected to the unit edge terminal device, the high-frequency sensor transmits a received high-frequency pulse signal to the unit edge terminal device, a communication module in the unit edge terminal device uploads a detection result and data to a cloud server and forms communication with an upper computer system, and the upper computer system controls execution of an alarm system by judging whether the signal exists or not.

In a second aspect, the application provides an online test method for lead wire breakage of a blade of a wind generating set, which comprises the following steps:

the method comprises the following steps: arranging an active transmitting device at the blade tip, arranging the active transmitting device on the inner wall of the blade and in non-contact connection with a lightning conductor, and arranging a flexible PCB (printed circuit board) solar cell panel or a storage battery at the blade tip for providing electric energy for an active electronic tag;

step two: arranging a high-frequency sensor at the blade root of the blade; when the active transmitting device transmits a pulse signal to the blade root through the lightning conductor, the high-frequency electromagnetic pulse is captured and transmitted to the subsequent signal processing circuit, and the electromagnetic pulse wave containing the blade coding information in the electromagnetic pulse wave is analyzed through the subsequent signal processing circuit;

step three: the device can realize bidirectional communication with an upper computer in a wired or wireless mode, and can read information in carrier pulses transmitted back from the lightning conductor and send the information to the upper computer terminal;

step four: the flexible PCB solar cell panel on the outer wall of the blade tip absorbs solar energy to generate electric energy to supply power for the active electronic tag on the inner wall, the high-frequency electronic tag on the blade tip loads a high-frequency pulse wave containing information such as blade codes and the like to the lightning conductor at intervals through the control unit, the high-frequency pulse wave is transmitted to the high-frequency sensor on the blade root in a transverse wave mode, when the pulse wave is transmitted to the blade root, the high-frequency pulse wave is captured by a high-frequency power supply receiving coil on the high-frequency sensor, and the information such as the blade codes and the like in the high-frequency pulse wave is read through a subsequent signal processing circuit;

step five: after information such as blade codes and the like is collected, the information is communicated with an upper computer through a communication unit in unit edge terminal equipment;

if the upper computer can receive the complete carrier high-frequency signal pulse, the lightning conductor is complete;

if the upper computer fails to receive the carrier high-frequency pulse, the lightning conductor is completely broken, the upper computer gives an alarm, and the corresponding blade lightning conductor is prompted to be maintained or replaced.

The invention has the following beneficial effects:

1. compared with the existing lightning conductor breakage detection technology, the lightning conductor breakage detection method has the technical advantages of convenience in testing and high efficiency. Compared with the traditional detection mode, the monitoring device has the advantages that the size is small, the cost is low, the weight is light, the steps of manually climbing a tower drum and externally wiring are reduced, the working efficiency is obviously improved, the construction time is shortened, and the safety of constructors is guaranteed;

2. the system and the method realize on-line monitoring, cloud data processing, artificial intelligent diagnosis and the like, can accurately and timely detect the disconnection condition of the lightning conductor, are convenient for timely maintaining or replacing the lightning conductor of the failed blade, and reduce the probability of large-scale failure;

3. the invention adopts the high-frequency electromagnetic pulse transceiving technology, the artificial intelligence algorithm, the active sensor transceiving technology and the like, has simple principle, easy realization and high detection speed, can detect under the condition of no shutdown compared with the traditional detection mode, and reduces the economic loss consumed by detection. And the identification precision is higher, the broken-line blade can be accurately positioned, and the maintenance and the construction are convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a tip active emission system.

Fig. 2 is a schematic view of the overall structural arrangement.

Fig. 3 is a block diagram of a planar structure of a lightning conductor disconnection monitoring system.

Fig. 4 is a test diagram of a system for testing disconnection of a lightning conductor of a blade of a wind driven generator.

In the figure, 1-a high-frequency sensor, 2-a lightning conductor, 3-an active transmitting device, 4-a flexible PCB solar panel, 5-a cloud server and 6-an upper computer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more clear, the present application will be further described in detail with reference to the accompanying drawings.

In order to facilitate understanding of the system and the method for online testing of the lead wire breakage of the blade of the wind generating set provided by the embodiment of the application, an application scenario of the system and the method is first described below.

At present, lightning conductor detection on a fan blade can only be performed offline, the fan is stopped, and then the on-off of the lightning conductor is detected through corresponding equipment, the detection mode needs manual regular detection, manpower is consumed, and loss caused by the stop of the fan accounts for negligibly; the breakage of the lightning conductor on the blade is unpredictable, the detection method has very poor timeliness and low efficiency, and the most fundamental reason that the blade of the fan is struck by lightning is that whether the lightning conductor can work normally or not cannot be obtained in time; based on this problem, this application provides a monitoring system who does not shut down, through the system of this application, can accomplish whether the real-time monitoring lightning conductor that does not shut down splits, and its biggest characteristics just are at fan operation in-process, can realize real time monitoring simultaneously, in case discover the lightning conductor fracture, and in time handle, avoid causing the loss.

For a clear understanding of the technical solutions of the present application, the system and method provided in the present application will be described in detail below with reference to specific embodiments and accompanying drawings.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" means one, two or more.

The embodiment is described in detail with reference to fig. 1 to 4, and the embodiment is an online testing system for lead wire breakage of a wind generating set blade; the hardware part of the test system mainly comprises a lightning conductor 2 installed in a blade, wherein the lightning conductor 2 is connected to the inner wall of each blade in an adhesive mode, the lightning conductor 2 is arranged at the blade root of the blade from a blade tip lightning receptor of the blade, an active emitting device 3 (the model is NRF24L 01) is installed on the inner wall of the blade tip of the blade, a high-frequency sensor 1 is arranged at the blade root of the blade, a flexible PCB solar cell panel 4 is fixed on the outer wall of the blade tip through a bolt and is in circuit connection with the active emitting device 3 of the inner wall, and electric energy generated by the solar cell panel supplies power for the active emitting device 3.

The active transmitting device 3 comprises a high-frequency power supply receiving coil, a radio-frequency signal transmitting antenna, a scattering modulation/demodulation circuit, a control unit and a memory, can be powered by solar energy, transmits high-frequency electromagnetic waves with blade coding characteristics, and can load the pulse waves onto the lightning conductor 2.

As shown in fig. 1, a lightning conductor 2 in a blade of a wind driven generator is a down-lead laid from a lightning receptor at a blade tip part to a blade root part, the lightning conductor 2 is connected with the down-lead by a hardware fitting, a 35mm steel strand is generally laid inside the blade and is connected with the inner wall of the blade in an adhesive manner, an active transmitting device 3 can be an active electronic tag, and the active electronic tag is arranged here and is in non-contact connection with the lightning conductor 2; a flexible PCB solar cell panel 4 is arranged on the outer wall of the blade tip to provide energy required by work for the active electronic tag; in addition, the active electronic tag can be an active electronic tag through a built-in battery.

The active electronic tag is a device capable of actively sending radio frequency outwards, working energy of the active electronic tag is provided by a battery, the battery, a memory and an antenna form the active electronic tag together, the active electronic tag is different from a passive radio frequency activation mode, information is sent out through a set frequency band before the battery is replaced, and a common active electronic tag works in a 433M frequency band or a 2.4G working frequency band; it can also be used to receive information.

As shown in fig. 2, a high-frequency sensor 1 (QT 1144 high-speed data acquisition card of kunshi technology can be adopted) is installed at the hub and used for acquiring high-frequency pulse waves transmitted on the lightning conductor 2, a unit edge terminal device (Sitara AM35x control chip + ME3630-C3B communication module) is arranged at the lower lead of the lightning conductor 2, and detection results and data are uploaded to the cloud server 5 through the unit edge terminal device; when the blade rotates daily, the solar cell panel positioned at the outer wall absorbs light energy to provide a trigger power supply for the active sensing equipment; when the lightning conductor 2 is detected, when an upper computer 6 (an IPC-610LDE industrial computer can be selected for sublimation) sends a detection instruction, high-frequency electromagnetic pulses can be coupled to the lightning conductor 2 through the active electronic tag; the other method is to directly set the radio frequency of the active electronic tag, and set the active electronic tag to perform radio frequency to the outside regularly, for example, in actual implementation, the radio frequency is set to be performed once every 24h in the morning, and the radio frequency is set to be 60s each time; if the high-frequency sensor 1 can receive the radio frequency information, the corresponding lightning conductor 2 is proved to be intact, and if the high-frequency sensor 1 cannot receive the radio frequency information, the lightning conductor 2 in the line is proved to be in a broken state.

The active transmitting system at the inner wall of the blade tip is mainly used for transmitting pulse waves to the high-frequency sensor 1 at the blade root; the carrier for transmitting the pulse wave is the lightning conductor 2, and then the high-frequency sensor 1 capable of receiving the pulse wave is arranged at the other end of the lightning conductor 2, so that the on-off judgment of the lightning conductor 2 is realized by utilizing the principle; each fan comprises three blades, the lightning conductor 2 is detected by aiming at each unit equipment, thousands of lightning conductors 2 are arranged, during implementation, faults of the lightning conductors 2 are not detected, and fault sources are detected, so that the blades corresponding to the system are uniquely coded, each code corresponds to one lightning conductor 2, for example, three different lightning conductors 2 exist on the same unit equipment, three groups of codes need to be set, the unit and the blades are numbered simultaneously, and the codes and the numbers are named correspondingly one by one; and the active electronic tag just can meet the use requirement.

The high-frequency sensor 1 is arranged at the hub, can receive high-frequency electromagnetic pulses transmitted from the lightning conductor 2, transmits the results of the received pulse waves to the unit edge terminal equipment, and transmits the detection results to the cloud server 5 through the communication module.

The result is transmitted to the cloud to only upload information, and a cloud server 5 is also required to be set up for reading the uploaded information and receiving the information transmitted by the unit edge terminal equipment, and the result is transmitted to an upper computer 6 in a downloading mode; on the boarding station, the fault condition of the lightning conductor 2 is displayed through different display of colors: if the lightning conductor 2 of the blade of the corresponding unit fails, the corresponding blade of the unit is displayed in red, if the lightning conductor 2 of the blade of the corresponding unit fails, the blade of the unit is displayed in green, and technicians can judge the on-off state of the lightning conductor 2 through colors; or may incorporate an audible alarm to alert the technician.

Wherein, unit edge terminal equipment includes: a hub grounding wire sensor and an edge computing terminal device; the edge computing terminal comprises a signal acquisition system, a signal processing system and a communication unit, and has the function of transmitting information with the upper computer 6 in a wired or wireless mode, wherein the hub grounding sensor comprises a power supply module, a matching circuit, a lightning protection protector and a shielding system; the high-frequency sensor 1 has a function of collecting a high-frequency signal from the lightning conductor 2.

The upper computer 6 system comprises a communication system, a safety isolation device, a monitoring system, a historical data analysis system and a disconnection alarm system, and has the functions of information encryption and bidirectional communication with the edge computing terminal.

In the above system or apparatus, the communication system: realize the communication safety isolation equipment between fan and the host computer: prevent the lightning current from damaging other devices,

the monitoring system comprises: the damage condition of the lightning conductor of the fan is monitored in real time,

historical data analysis system: analyzing the past data through an artificial intelligence algorithm, and predicting a blade wire breakage alarm system which is likely to have wire breakage: and when a certain lightning conductor is broken, an alarm is given.

For the system introduction of the present application: the solar panel of the outer wall of the blade tip provides the energy needed to send the radio frequency pulse wave (this part is performed by the flexible PCB solar panel 4), when the energy reaches the requirement, the information such as the blade code and the like is loaded on the high-frequency pulse through the scattering modulation/demodulation circuit, the control chip can radiate the radio-frequency pulse (the part is executed by the active electronic tag) to the direction of the blade root through the radio-frequency signal sending antenna, the radio-frequency pulse is captured by the directional radio-frequency receiving antenna and the radio-frequency signal receiving circuit, meanwhile, the signal acquisition circuit starts to acquire the high-frequency carrier pulses (the part is executed by the high-frequency sensor 1), information in the high-frequency carrier pulses is extracted by subsequent circuits and elements after the pulses are acquired, and information that the lightning conductor 2 is intact is sent to the cloud server 5 (the part is executed by the unit edge terminal device) in a wired or wireless mode through the communication unit by the unit edge terminal device after the signals are extracted. The upper computer 6 acquires the state information of the lightning conductor 2 from the cloud server 5 in a downloading mode, and at the moment, the upper computer 6 displays that the lightning conductor 2 is not broken; on the contrary, when the lightning conductor 2 has broken the situation of share, then high frequency electromagnetic pulse can't transmit the high frequency sensor 1 of blade root department through the lightning conductor 2, after host computer 6 has sent the detection instruction for a period, if high frequency sensor 1 has not accepted high frequency electromagnetic pulse, then think that the lightning conductor 2 has broken the situation, unit edge terminal equipment will transmit the state information of 2 broken wires of lightning conductor to high in the clouds server 5, when host computer 6 has downloaded the testing result this moment, will show the situation that the broken wire has appeared in lightning conductor 2, and report to the police, maintain or change by the staff.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (6)

1. A wind generating set blade lead wire disconnection on-line test system comprises a blade and a lightning conductor arranged in the blade; the method is characterized in that: the high-frequency sensor system is in communication connection with an upper computer system in a wired or wireless mode after receiving high-frequency pulse signals, and the upper computer system executes on-off alarm of the lightning conductor according to whether the signals are received or not.

2. The wind generating set blade lead wire disconnection on-line test system of claim 1, wherein: the active transmitting device is installed at the position of the blade tip of each blade, a flexible PCB solar panel is arranged at the position of the blade tip of each blade, the electric energy generated by the flexible PCB solar panel supplies power to the active transmitting device, the active transmitting device loads transverse electromagnetic waves to the lightning conductor, and the pulse waves of each blade are uniquely coded; the high-frequency sensor is arranged on a lower lead of a lightning conductor of a blade root hub of the wind generating set; the high-frequency sensor receives the high-frequency pulse transmitted from the lightning conductor and converts the high-frequency pulse into an electric signal.

3. The wind generating set blade lead wire disconnection on-line test system of claim 1, wherein: the upper computer system comprises a communication system, a safety isolation device, a monitoring system, a historical data analysis system and a disconnection alarm system, and has the functions of information encryption and bidirectional communication with the edge computing terminal.

4. The wind generating set blade lead wire disconnection on-line test system of claim 1, wherein: the active emitting device is an active electronic tag which is arranged inside the paddle and is installed in a non-contact mode with the lightning conductor, and the flexible PCB solar cell panel is installed on the outer wall of the paddle.

5. The wind generating set blade lead wire disconnection on-line test system of claim 1, wherein: the high-frequency sensing system comprises a high-frequency sensor and unit edge terminal equipment, the high-frequency sensor is connected with the unit edge terminal equipment, the high-frequency sensor transmits received high-frequency pulse signals to the unit edge terminal equipment, a communication module in the unit edge terminal equipment uploads detection results and data to a cloud server and forms communication with an upper computer system, and the upper computer system controls execution of the alarm system by judging whether signals exist or not.

6. A wind generating set blade lead wire disconnection on-line test method is characterized in that: the method comprises the following steps:

the method comprises the following steps: arranging an active transmitting device at the blade tip, arranging the active transmitting device on the inner wall of the blade and in non-contact connection with a lightning conductor, and arranging a flexible PCB (printed circuit board) solar cell panel or a storage battery at the blade tip for providing electric energy for an active electronic tag;

step two: arranging a high-frequency sensor at the blade root of the blade; when the active transmitting device transmits a pulse signal to the blade root through the lightning conductor, the high-frequency electromagnetic pulse is captured and transmitted to the subsequent signal processing circuit, and the electromagnetic pulse wave containing the blade coding information in the electromagnetic pulse wave is analyzed through the subsequent signal processing circuit;

step three: the device can realize bidirectional communication with an upper computer in a wired or wireless mode, and can read information in carrier pulses transmitted back from the lightning conductor and send the information to the upper computer terminal;

step four: the flexible PCB solar cell panel on the outer wall of the blade tip absorbs solar energy to generate electric energy to supply power for the active electronic tag on the inner wall, the high-frequency electronic tag on the blade tip loads a high-frequency pulse wave containing information such as blade codes and the like to the lightning conductor at intervals through the control unit, the high-frequency pulse wave is transmitted to the high-frequency sensor on the blade root in a transverse wave mode, when the pulse wave is transmitted to the blade root, the high-frequency pulse wave is captured by a high-frequency power supply receiving coil on the high-frequency sensor, and the information such as the blade codes and the like in the high-frequency pulse wave is read through a subsequent signal processing circuit;

step five: after information such as blade codes and the like is collected, the information is communicated with an upper computer through a communication unit in unit edge terminal equipment;

if the upper computer can receive the complete carrier high-frequency signal pulse, the lightning conductor is intact;

if the upper computer fails to receive the carrier high-frequency pulse, the lightning conductor is completely broken, the upper computer gives an alarm, and the corresponding blade lightning conductor is prompted to be maintained or replaced.

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