Based on the Wind turbines maintenance monitoring method of 4G technologyTechnical field
The present invention relates to a kind of wind power technology, relate to a kind of Wind turbines based on 4G technology maintenance monitoring method in particular.
Background technique
Wind energy is a kind of renewable energy sources of inexhaustible, nexhaustible clean environment firendly, will become one of 21 century topmost green energy resource.Wind regime is the principal element affecting wind power plant efficiency, annual mean wind speed is greater than the large-scale grid-connected wind power field of suitable construction, area of 6m/s, and annual mean wind speed be 3 ~ 5m/s area due to wind-force little, unstable, small off-grid type wind power plant should be applied.China accounts for the regional annual mean wind speed in national soil 76% all at 3 ~ 5m/s, and therefore development of small-scale has the meaning of particular importance to China from net type wind power station.Wind power generating set is the key equipment of wind power station, and in order to improve the safety reliability and working life that small off-grid type wind power station runs, the supervisory system researched and developed from net type small wind unit is a very important job.
Certain research has been carried out at present in the domestic and international on-line monitoring at Wind turbines, remote control technology.External many large-scale wind electricity factories are all configured with Wind turbines condition monitoring system, as companies such as Flender, Clipper, NRG.Domestic and international existing Wind turbines monitoring system and Wind turbines monitoring method mostly for large-scale grid-connected wind power unit design, and small off-grid type wind power generating set and large-scale grid-connected wind power unit have larger difference in the structures such as yaw system, be not thus suitable for small off-grid type wind power generating set.
Have notification number be CN102541042B patent discloses a kind of based on Internet of Things from net type Miniature wind Power Station Monitored Control System, it is characterized in that: comprise Wind turbines, wireless sensor network, Line concentrator, process control machine, server and user side; Wind turbines comprises wind energy conversion system main body, tower bar and controls power supply system; Wind energy conversion system main body comprises wind wheel, generator, solid of rotation and vibration damper; Control power supply system and comprise brake controller, controller of fan, battery pack, inverter and off-load case; Wind energy conversion system main body is arranged on outdoor tower bar, controlling power supply system, Line concentrator and process control machine is arranged in control room, the Ac that Wind turbines generator sends becomes direct current through controller of fan rectification and is stored in battery pack, and the direct current that battery pack exports is reverse into after Ac through inverter and supplies electrical appliance work; Wind turbines generator is connected with controller of fan by cable respectively with battery pack, and controller of fan is built with voltage transducer and current sensor;
Wireless sensor network is made up of at least two wireless sensor nodes, and wireless sensor node comprises terminal node and aggregation node, and terminal node is arranged on the maintenance platform in tower masthead portion of Wind turbines, and aggregation node is arranged in Wind turbines control room, in described terminal node, install corresponding sensor according to actual needs for monitoring the runnability of blower fan, the sensor installed at least comprises air velocity transducer, wind transducer and vibration transducer, terminal node periodically gathers the data such as wind speed, wind direction and the vibration of tower bar, and the data collected is sent to aggregation node, and the data received are transferred to Line concentrator by aggregation node, Line concentrator gathers the image data of each controller of fan and aggregation node, and carries out data interaction with process control machine, process control machine stores the data that Line concentrator is uploaded, analyze and by data through Internet or GPRS transmission to server, when process control machine detects the predefined value that wind speed or vibration exceed in process control machine, process control machine sends instruction to controller of fan and controls blower fan brake, this patent just effectively can reach the effect of a remote monitoring Wind turbines by the setting of wireless sensor network, but the transmission means of the wireless senser adopted due to this patent is RS485 transmission, because RS485 transmission needs server to realize transmission, the installation cost of supervisory system will be increased like this, also need to carry out large-scale redevelopment to wind farm device simultaneously, increase the operation cost of wind energy turbine set further, its client end is substantially all PC simultaneously, and PC cannot move, what be merely able to fixed point is placed on fixing position, people is needed to go at set intervals to have a look PC, if in people's not words of breaking down of Wind turbines in case, just cannot reach a good supervisory function bit, easily cause Wind turbines badly damaged problem, increase the operation cost of wind energy turbine set.
Summary of the invention
For the deficiency that prior art exists, the object of the present invention is to provide a kind of maintenance of the Wind turbines based on 4G technology monitoring method that effectively can lower the operation cost of wind energy turbine set.
For achieving the above object, the invention provides following technological scheme: a kind of maintenance of the Wind turbines based on 4G technology monitoring method, comprises the steps:
Step one, when Wind turbines breaks down, send alarm message by 4G communication module to the outer remote mobile device of remote maintenance personnel after Host Detection to this fault or set up with the maintenance software on outer remote mobile device and to be unidirectionally connected, to send alarm and indicate;
Step 2, attendant utilizes outer remote mobile device and main frame to verify, foundation is bi-directionally connected, if checking is not passed through, then directly terminates, if be verified, continues step 3;
Step 3, is simply keeped in repair Wind turbines by the field personnel of wind energy turbine set, and main frame monitors whole maintenance process simultaneously, and to remote maintenance personnel real-time report procedural information, if serviced rear failture evacuation, then directly terminate, if do not get rid of, continue step 4;
Step 4, attendant by the 4G communication module communication of outer remote mobile device and main frame, and with main frame internal maintenance software communication, utilize maintenance software simply test Wind turbines and keep in repair, if failture evacuation afterwards, then directly terminate, if do not get rid of, continue step 5;
Step 5, Field Force sets up video with remote maintenance personnel and voice are connected, system host sends real-time omnibearing fault in-situ video to remote-moving apparatus, by these field datas, remote maintenance personnel assign instruction to Field Force, and Field Force carries out complicated maintenance work under it instructs, if failture evacuation, then directly terminate, if do not get rid of, terminate after formulation maintenance project.
By adopting technique scheme, by the setting of above five steps, just can when Wind turbines breaks down, notify attendant timely, then attendant utilizes the communication between outer remote equipment and main frame, to the maintenance work that Wind turbines carries out repeatedly, to guarantee timely and effectively the failture evacuation of Wind turbines, Wind turbines like this just can be avoided to occur badly damaged, cause heavy losses, cause the problem that wind energy turbine set operation cost increases further, also achieve attendant simultaneously and carry out long-distance service, at utmost reduce the demand that attendant is in the action, effectively decrease the operation cost of wind energy turbine set.
The present invention is set to further: the main frame used in above-mentioned steps one comprise display screen, ups power, for the 4G communication module that carries out communication with outer remote mobile device and two communication interfaces be respectively used to the communication of wind energy turbine set control room and Wind turbines communication, described two communication interfaces all couple with display screen, and described two communication interfaces all couple with 4G communication module.
By adopting technique scheme, by the setting of main frame, just can effectively monitor when Wind turbines breaks down, at host supervision to afterwards, just can be assigned to trouble signal by short message sending on the outer remote mobile device of attendant by 4G communication section, or directly set up individual event with the maintenance software on outer remote mobile device and be connected, so just can when fault occurs, no matter attendant can learn trouble signal timely and effectively in where, just can carry out long-distance service to Wind turbines timely, Wind turbines is avoided to occur badly damaged, at utmost decrease the demand that attendant is in the action, effectively reduce the operation cost of wind energy turbine set, simultaneously when main frame is by 4G communication part and the communication of outer remote mobile device, for Direct Communication, do not need by any server additionally set up in the middle of it, with regard to not needing, the equipment of wind energy turbine set is transformed on a large scale, only need to provide corresponding interface, so just can effectively reduce the installation cost of supervisory system, reduce further the operation cost of wind energy turbine set.
The present invention is set to further: two communication interfaces of described main frame are all connected by wired mode with Wind turbines and wind energy turbine set control room.
By adopting technique scheme, by wired mode, two communication interfaces are effectively coupled together respectively at wind turbine combination wind energy turbine set control room, make effectively to carry out communication between three, like this when Wind turbines breaks down, main frame and wind energy turbine set control room just can be learnt timely and effectively.
The present invention is set to further: two communication interfaces of described main frame are all coupled with the first wireless communication module, described wind energy turbine set control room and Wind turbines are all coupled with the second wireless communication module, described first wireless communication module and the second wireless communication module communication.
By adopting technique scheme, by the setting of the first wireless communication module and the second wireless communication module, just effectively can convert the trouble signal of Wind turbines to communication interface that wireless signal is transported to main frame, main frame just can be made a response according to trouble signal timely.
The present invention is set to further: described outer remote mobile device is mobile phone or panel computer or notebook computer.
By adopting technique scheme, mobile phone, panel computer and notebook computer are all the remote-moving apparatus the most widely used at present, with the trouble signal that just effectively can receive main frame here and send, attendant is made to learn trouble signal timely and effectively, timely Wind turbines is keeped in repair, avoid the generation of heavy losses, reduce the operation cost of wind energy turbine set.
The present invention is set to further: described first wireless communication module and the second wireless communication module include transmitter module and receiving module.
By adopting technique scheme, by the first wireless communication module and the second wireless communication module are provided with transmitter module and receiving module, so just can be launched by the signal of transmitter module by required communication, the signal launched by transmitter module is received by receiving module, so just effectively can realize the wireless telecommunications between main frame and wind energy turbine set control room and Wind turbines, more easily than adopting wired mode to carry out communication.
The present invention is set to further: described transmitter module comprises vibrator circuit, amplification circuit and antenna, described vibrator circuit comprises generator triode, resistance, transformer and electric capacity, communication interface is coupled to after the base stage coupling resistance of described generator triode, it is coupled to the secondary of transformer after going back coupling capacitance, its collector electrode is coupled to the secondary of transformer after coupling an electric capacity, electric capacity and Capacitance parallel connection, its grounded-emitter connection, described amplification circuit comprises amplifying triode, resistance, electric capacity, inductance, electric capacity and inductance, be coupled to the collector electrode of generator triode after the base stage coupling capacitance of described amplifying triode and also couple power supply, described resistance be coupled in formed between electric capacity and amplifying triode base stage between node and ground, the secondary of transformer is coupled to after the collector electrode of described amplifying triode is coupled to inductance, described electric capacity is connected with inductance, and be coupled in inductance and between the node that formed between amplifying triode and inductance and antenna.
By adopting technique scheme, by the setting of generator triode and transformer, just effectively the low frequency signal sent required for main frame or wind energy turbine set control room or Wind turbines can be carried out high frequency modulated, be modulated into high-frequency signal, then by buffer amplifier circuit that amplifying triode forms with resistance and electric capacity, just effectively can carry out Hyblid Buffer Amplifier to the high-frequency signal that above-mentioned modulation completes, gone out by antenna transmission more afterwards, this makes it possible to effectively launch after the signal madulation of required transmission, receive for receiving module.
The present invention is set to further: described receiving module comprises receiving antenna and amplification circuit, and described amplification circuit comprises power amplifier, resistance and resistance, and the homophase input of described power amplifier couples receiving antenna, ground connection after its reverse input end coupling resistance; One end of described resistance is coupled on the node that formed between resistance and power amplifier reverse input end, and its other end is coupled to the output terminal of power amplifier.
By adopting technique scheme, by the setting of power amplifier, just effectively can form an easy amplification circuit with two resistance, so just, be transported to main frame, wind energy turbine set control room and Wind turbines after the high-frequency signal received can being amplified, ensure that the accuracy of received signal by receiving antenna.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the Wind turbines based on 4G technology of the present invention maintenance monitoring method;
Fig. 2 is the flow chart of the Wind turbines based on 4G technology of the present invention maintenance monitoring method;
Fig. 3 is transmitter module circuit diagram;
Fig. 4 is receiving module circuit diagram.
In figure: 1, wind energy turbine set control room; 2, main frame; 21, camera; 22,4G communication module; 23, ups power; 24, the first wireless communication module; 3, Wind turbines; 31, the second wireless communication module; 4, outer remote mobile device; 5, transmitter module; 51, vibrator circuit; 52, amplification circuit; 53, antenna; 6, receiving module; 61, receiving antenna; 62, amplification circuit.
Embodiment
With reference to shown in Fig. 1, a kind of maintenance of the Wind turbines based on 4G technology monitoring method of the present embodiment, comprises the steps:
Step one, when Wind turbines 3 breaks down, send alarm message by 4G communication module 22 to the outer remote mobile device 4 of remote maintenance personnel after main frame 2 detects this fault or set up with the maintenance software on outer remote mobile device 4 and to be unidirectionally connected, to send alarm and indicate;
Step 2, attendant utilizes outer remote mobile device 4 and main frame 2 to verify, foundation is bi-directionally connected, if checking is not passed through, then directly terminates, if be verified, continues step 3;
Step 3, is simply keeped in repair Wind turbines 3 by the field personnel of wind energy turbine set, and main frame 2 monitors whole maintenance process simultaneously, and to remote maintenance personnel real-time report procedural information, if serviced rear failture evacuation, then directly terminate, if do not get rid of, continue step 4;
Step 4, attendant by outer remote mobile device 4 4G communication module 22 communication with main frame 2, and with main frame 2 internal maintenance software communication, utilize maintenance software simply test Wind turbines 3 and keep in repair, if failture evacuation afterwards, then directly terminate, if do not get rid of, continue step 5;
Step 5, Field Force sets up video with remote maintenance personnel and voice are connected, system host 2 sends real-time omnibearing fault in-situ video to remote-moving apparatus, by these field datas, remote maintenance personnel assign instruction to Field Force, and Field Force carries out complicated maintenance work under it instructs, if failture evacuation, then directly terminate, if do not get rid of, terminate after formulation maintenance project.
By adopting technique scheme, when Wind turbines 3 breaks down time, Wind turbines 3 will carry out communication with main frame 2, trouble signal is informed to main frame 2, Wind turbines 3 wherein in the present embodiment and the communication modes between main frame 2 is wired and wireless two kinds, can select according to the service condition of user, the main frame 2 of the present embodiment is powered owing to there being ups power 23 simultaneously, thus can as portable main frame 2, if thus main frame 2 be fixed on a certain position and adopt on-the-spot socket to power, so preferably wire communication mode, the fabricating cost of main frame 2 can be effectively reduced, if main frame 2 be mainly applied as movable type, ups power 23 is so adopted to power, preferred wireless communication modes simultaneously, the wiring cost of main frame 2 can be effectively reduced, after main frame 2 receives trouble signal, 4G communication module 22 and outer remote mobile device 4 communication will be utilized, so that trouble signal is passed to attendant, after attendant learns, just Wind turbines 3 is keeped in repair, Wind turbines 3 is avoided to occur badly damaged, cause the problem that wind energy turbine set operation cost promotes, due to above-mentioned main frame 2 send trouble signal to outer remote communication apparatus and attendant utilize outer remote communication apparatus to keep in repair Wind turbines 3 time, all realized by 4G technology, would not to occur in background technique mentioned owing to utilizing 485 communications like this, need additionally to set up a server, supervisory system installation cost is caused to increase, cause the problem that wind energy turbine set operation cost increases further.
Below the working procedure of whole maintenance monitoring method is described in further detail.
Shown in seeing figures.1.and.2, the camera 21 that main frame 2 in the present embodiment comprises is arranged on Wind turbines 3 place, for taking the repair of Wind turbines 3, display screen is also arranged on Wind turbines 3 place simultaneously, for the video speech communication between wind energy turbine set staff and attendant, small keybroad is arranged on main frame 2, to set the parameters on main frame 2, 4G communication module 22 and ups power 23 are all built in main frame 2 shell, after Wind turbines 3 breaks down, the PLC at Wind turbines 3 place will send trouble signal to main frame 2 place, because the communication modes adopted in the present embodiment is wireless telecommunications, thus first the trouble signal that PLC sends will be modulated through the second wireless communication module 31, the first wireless communication module 24 is sent to after being modulated into wireless signal, the CPU that electrical signal is sent to main frame 2 is modulated into after first wireless communication module 24 receives this signal, trouble signal will be come to attendant's alarm to outer remote mobile device 4 or the single-phase communication of maintenance software directly and in outer remote communication apparatus by short message sending by 4G communication module 22 by the CPU of main frame 2, and by staff's alarm in the first and second wireless communication modules aweather electric field controls room 1, attendant is by outer remote communication apparatus and main frame 2 communication simultaneously, after checking logs in successfully, main frame 2 carries out simplified overhauling by display screen notice wind energy turbine set staff to Wind turbines 3, main frame 2 monitors whole maintenance process by camera 21 simultaneously, and by 4G communication module 22, repair message is sent on the remote external mobile device of attendant, if fault is not got rid of after the simplified overhauling of staff, so main frame 2 just passes through 4G communication module 22 Direct Communication with attendant, attendant's facility outer remote mobile device 4 carrys out main control system 2 by 4G communication module 22, Wind turbines 3 is simply tested and keeps in repair, if fault also cannot be got rid of, attendant transmits a signal to main frame 2, camera 21 and display screen are just opened by main frame 2, attendant and field personnel's video and speech communication are provided, complicated maintenance work is carried out to Wind turbines 3, if or cannot fix a breakdown, so main frame 2 terminates fault warning after informing attendant by 4G communication module 22 and stops Wind turbines 3 to work, attendant is just after making maintenance project, come to Wind turbines 3 scene personally to keep in repair, as can be seen here by the setting of 4G communication module 22 just can effectively realize attendant timely and effectively with Wind turbines 3 field personnel communication, maintenance work can be carried out timely and effectively to the Wind turbines 3 broken down, effectively avoid Wind turbines 3 and occur the badly damaged problem causing wind energy turbine set operation cost to increase, effectively can also at utmost reduce the demand that attendant is in the action simultaneously, effectively reduce the operation cost of wind energy turbine set, and the communication between the main frame 2 of the present embodiment and attendant carries out communication by 4G communication module 22, thus would not occur additionally arranging server due to the needs that cause of 485 communication modules utilized in background technique, need to carry out large-scale redevelopment to wind energy turbine set, make the problem that wind energy turbine set operation cost increases.
Transmitter module 5 and receiving module 6 is included with reference to the first wireless communication module 24 shown in Fig. 3 and Fig. 4 and the second wireless communication module 31, wherein transmitter module 5 transmitter module 5 here comprises vibrator circuit 51 as shown in Figure 3, amplification circuit 52 and antenna 53, described vibrator circuit 51 comprises generator triode Q1, resistance R1, transformer T and electric capacity C1, communication interface is coupled to after the base stage coupling resistance (R1) of described generator triode Q1, it is coupled to the secondary of transformer T after going back coupling capacitance C1, its collector electrode is coupled to the secondary of transformer T after coupling an electric capacity C2, electric capacity C1 is in parallel with electric capacity C2, its grounded-emitter connection, described amplification circuit 52 comprises amplifying triode Q2, resistance R2, electric capacity C3, inductance L 1, electric capacity C4 and inductance L 2, be coupled to the collector electrode of generator triode Q1 after the base stage coupling capacitance C3 of described amplifying triode Q2 and also couple power supply, described resistance R2 be coupled in formed between electric capacity C3 and amplifying triode Q2 base stage between node and ground, the secondary of transformer T is coupled to after the collector electrode of described amplifying triode Q2 is coupled to inductance L 1, described electric capacity C4 connects with inductance L 2, and be coupled in inductance L 1 and between the node that formed between amplifying triode Q2 and inductance L 1 and antenna 53, first after circuit ON power supply, the collector electrode of generator triode Q1 outputs signal to the primary air of transformer T, transformer T will carry out the effect of a coupling, be transported to the base stage of generator triode afterwards again through electric capacity C1 by secondary winding, form positive feedback, the starting of oscillation of so whole vibrator circuit 51, the base stage input of generator triode Q1 is needed to the low-frequency modulation signal launched simultaneously, this signal will carry out amplitude modulation to the high frequency oscillation produced, make the high-frequency signal that exports relevant to the low frequency signal of required transmitting below, high-frequency signal is modulated into by low frequency signal, wherein resistance R1 here and electric capacity C1 is all for stabilization signal.
After low frequencies signal madulation is become high-frequency signal by vibrator circuit 51, the output of vibration three machine-operated Q1 is coupled to amplifying triode Q2 base stage through electric capacity C3, and inductance L 1 is the load inductance of amplifying triode Q2; And deliver to antenna 53 through electric capacity C4/ inductance L 2 series resonant circuit and launch.Resistance R2 ground connection, namely zero offset, because input signal amplitude is comparatively large, and carry out frequency-selecting with electric capacity C4/ inductance L 2 resonant tank, so be not afraid of distortion, transmitting efficiency is higher.
There is a tie point at transformer T, inductance L 1 and power supply place, and this emitting circuit does not have direct current biasing due to base stage, and circuit is all operated in Class C and amplifies.Primary and secondary the phase place of transformer T is contrary, when being exactly the collector current increase of generator triode Q1, the elementary induced electromotive force of transformer T is right positive left negative, the left positive right negative induced electromotive force of secondary generation, the charging current of electric capacity C1 is strengthened, contrary with above-mentioned situation when collector current reduces, thus can change produced frequency by the inductance coefficent of the capacity and transformer T that change electric capacity C1.
As shown in Figure 4, receiving module 6 comprises receiving antenna 61 and amplification circuit 62, described amplification circuit 62 comprises power amplifier IC, resistance R3 and resistance R4, and the homophase input of described power amplifier IC couples receiving antenna 61, ground connection after its reverse input end coupling resistance R3, one end of described resistance R4 is coupled on the node that formed between resistance R3 and power amplifier IC reverse input end, its the other end is coupled to the output terminal of power amplifier IC, after receiving antenna 61 receives signal, the in-phase input end of power amplifier IC will be input to, wherein power amplifier is here LM386, by ground connection after its inverting input coupling resistance R3, and its inverting input and output terminal are coupled by resistance R4, so, power amplifier IC will form an amplification circuit, the signal accepted received by antenna 61 will be carried out amplifying rear output, make main frame, wind energy turbine set control room and Wind turbines better can receive signal.
In sum, the maintenance supervisory system of the present embodiment and maintenance monitoring method, the communication between outer remote mobile device 4 and main frame 2 is realized by 4G communication module 22, just effectively can carry out long-distance service fast and effectively to Wind turbines 3, do not need to carry out large-scale redevelopment to wind energy turbine set simultaneously yet, at utmost decrease the demand that attendant is in the action, effectively reduce the operation cost of wind energy turbine set.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technological schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.