CN211692718U - Automatic Yaw Multi-Module Wind Turbine - Google Patents

Abstract

The utility model relates to an automatic yaw multi-module wind power generator, comprising: a motor casing, a main power shaft; a plurality of power generation modules serially connected on the main power shaft; each of the power generation modules includes a unit magnet serving as a rotor It also includes a controller and a signal acquisition and transmission module. The controller controls the number of power generation modules participating in power generation by controlling the number of unit coil sections that the output circuit conducts. It also includes an automatic yaw system. . The generator can control different numbers of power generation modules to participate in power generation according to the change and size of the external power input, so that the generator can generate electricity normally when the external power of different application segments and different external power are input, which greatly improves the external power. At the same time, the automatic yaw system enables the generator to obtain the largest wind receiving area, capture more wind energy, and greatly improve the power generation.

Description

Automatic Yaw Multi-Module Wind Turbine

technical field

The utility model relates to a wind power generator using wind energy to generate electricity, in particular to an automatic yaw multi-module wind power generator.

Background technique

With the development of industrial and agricultural production and the improvement of people's living standards, the proportion of wind power generation is getting higher and higher. Because wind input is unstable, the wind energy used by existing wind turbines is usually limited to a certain application section. The power input outside the application section cannot be effectively utilized, resulting in a low utilization rate of renewable energy. For example, the existing large-scale wind turbine is usually composed of a high-power power generation module with a rated power of about 1000KW. Usually, it can generate electricity normally only when the wind power reaches the fifth, sixth and higher winds and the output meets the requirements Standard current, but in the low wind and breeze section of the second to fourth level, the external power input and power input are usually not enough to drive the generator to generate electricity normally. Therefore, the use of wind power by such large-scale wind turbines is only limited to a large wind section with a small application range, and the low wind section that exists for a long time. The wind energy cannot be used, so the conversion rate of the entire motor to energy is low, the output and input are relatively low, and the waste is large.

It can be seen that due to the single and constant rated power of the existing generator, it cannot adjust the structure and rated power of its internal participation in power generation according to the real-time change of the external input power, so either the external power is not enough to drive the generator to generate electricity normally, or The generator over-speeded and burned out. The prior art discloses a wind generator with multiple power generating units, which can adjust the overall power of the generator according to the size of the external wind power, which solves the technical problem that the motor power changes with the size of the external power. However, the magnitude and direction of wind in nature are always changing at any time. The wind turbines of the multiple power generation units cannot solve the problem that the blades change with the wind direction at any time. Therefore, the wind turbine cannot always maximize the windward surface of the blades, and cannot maximize the wind direction of the blades. Therefore, its utilization of wind energy cannot reach the optimal state.

SUMMARY OF THE INVENTION

In view of the above-mentioned problems in the prior art, the present invention provides a wind generator that can automatically yaw and is composed of a plurality of power generation modules that can operate independently. The generator can control different amounts of power generation according to the change of the input external power. The module participates in power generation, so that the power of the generator can be adjusted in time to adapt to the external conditions; at the same time, the automatic yaw system enables the generator to always obtain the largest wind receiving area, capture more wind energy, and greatly increase the power generation. The specific technical scheme of the present utility model is as follows.

Automatic yaw multi-module wind turbine including:

Motor shell, main power shaft;

A plurality of power generation modules connected in series on the main power shaft in sequence; each of the power generation modules includes a unit magnet part and a unit coil part; the unit magnet parts are respectively fixedly connected with the main power shaft and can be connected with the main power shaft. The rotation of the power shaft constitutes the rotor of the generator, and the unit coil part constitutes the stator of the generator;

A control system, the control system includes a controller and a signal acquisition and transmission module, the signal acquisition and transmission module is signal-connected to the controller, and the controller controls the conduction of the output circuits of the coil units of each unit respectively according to the signals received from the signal acquisition and transmission module , the controller controls the number of power generation modules participating in power generation by controlling the number of unit coil parts that the output circuit conducts;

The automatic yaw system includes a yaw motor, a wind direction detector, and an angle sensor. The wind direction detector and the angle sensor are all signally connected to the controller, and the controller is electrically connected to the yaw motor.

The main power shaft is connected to the external blades to input power, and the main power shaft penetrates the casing of the motor and is fixed with both ends of the casing by bearings; the controller is a PLC controller or an intelligent controller; multiple power generation modules refer to two or More than two power generation modules that can operate independently, each power generation module has its own rated power, usually the rated power of each power generation module is the same, and the rated power of the generator is the sum of the rated power of each power generation module. The multiple power generation modules are serially connected on the main power shaft in sequence means that the multiple power generation modules are sequentially arranged on the main power shaft, so that each power generation module can simultaneously receive the external power transmitted by the main power shaft. Since the unit magnet parts of each power generation module are respectively fixedly connected with the main power shaft, driven by the external power, the unit magnet parts of each power generation module rotate synchronously with the main power shaft, but each unit magnet part rotates with the main power shaft. The rotation of the shaft does not mean that each power generation module is running to generate electricity. When the output circuit of a unit coil part is disconnected, the rotation of the corresponding unit magnet part only causes the unit coil part to cut the magnetic line of force and generate an electric potential , but does not generate current, nor will the corresponding unit magnet part generate reverse torque or reverse resistance acting on the main power shaft; when the output circuit of the unit coil part conducts the external load to form a loop, these potentials A current will be generated in the unit coil part, and it will start to participate in power generation. At the same time, the unit magnet part corresponding to the unit coil part will generate a reverse torque acting on the main power shaft, so that it can be matched with the positive power generated by the external power input. Torque strikes a balance. The conduction of the output circuit of the unit coil part of the present invention means that the output circuit of the unit coil part is connected to the external load to form a loop, so that a current can be generated. The function of the controller of the utility model is to control the output circuits of the unit coil parts of different numbers to be turned on according to the received signal of the size of the external power input, so as to control the power generation modules of different numbers to generate current to run and generate electricity, so as to make the rated power of the generator. Real-time adjustment to adapt to the magnitude and change of incoming external power and power.

The yaw motor is used to drive the overall steering of the wind turbine main engine, so as to maximize the windward surface of the blade and obtain more wind energy. The wind direction detector is used to sense the wind direction and transmit the wind direction signal to the controller. The controller sends out instructions to control the operation and direction of the yaw motor. The angle sensor is used to sense the overall yaw angle of the generator equipment and transmit the signal to the controller. When the yaw angle is greater than a preset value, the controller instructs the motor to stop running to ensure the stability and safety of the power generation equipment and avoid damage to the equipment caused by excessive deflection. The preset deflection angles include a positive maximum value and a negative maximum value, which control the maximum deflection angle of the generator and blades in two opposite directions. Of course, a wind speed sensor can also be added to the motor. The wind speed sensor transmits the wind speed signal to the controller. When the wind speed reaches a certain preset value of the typhoon level, the controller instructs the deflection motor to deflect a certain angle to avoid strong winds and ensure safety. When the deflection angle reaches the preset safe angle, the yaw motor stops deflection. Here, the wind speed signal and the deflection angle signal are combined to control, and the wind speed value and the deflection angle value are preset in the controller in advance.

The signal received by the controller of the utility model includes the rotational speed signal or torque signal of the main power shaft, and can also be the power signal, voltage signal, and current signal of the power generation module, as well as the wind direction signal transmitted by the wind direction detector and the angle signal of the angle sensor. . The "participation in power generation" in this utility model means that the output electricity conforms to certain voltage and frequency standards and can meet the demand for power supply and electricity consumption, which is commonly referred to as normal power generation.

In order to better control the output circuit of the unit coil part, the control system further includes a plurality of on-off switch modules; the controller is respectively connected with the on-off switch modules, and each output circuit of the unit coil part is connected in series with one The on-off switch module; the controller can control the conduction of the on-off switch module according to the received signal from the signal acquisition and transmission module, thereby controlling the conduction of the output circuit of the unit coil part. The on-off switch module is preferably an electromagnetic switch.

Further, the unit magnet part includes a plurality of left magnets and right magnets arranged opposite to each other, a gap is left between the left magnet and the right magnet, and the unit coil part is located in the gap. The unit magnet part includes a set of left magnetic disks and right magnetic disks arranged oppositely, the left magnets are arranged on the left magnetic disk in a staggered manner according to N poles and S poles, and the right magnets are arranged in a staggered arrangement on the right magnetic disk according to S poles and N poles; And the oppositely arranged left magnet and the right magnet have opposite magnetic poles. This structure can ensure the strength of the magnetic field, and can maximize the change of the magnetic flux in the unit coil part, thereby improving the power generation efficiency and energy conversion rate of the generator.

Further, two adjacent unit magnet parts share a magnetic disk, and the magnetic disk also serves as the left magnetic disk of one unit magnet part and the right magnetic disk of another adjacent unit magnet part, and the left magnet and the right magnet are respectively arranged in the both sides of the disk. This optimization can make the structure of the generator more compact, and can save a magnetic disk between two adjacent unit magnet parts, thereby saving costs.

The unit coil part is a coil disk matching the shape of the left magnetic disk and the right magnetic disk, and several small coil packages are arranged in the coil disk.

Because the change of the input external power is first reflected on the rotational speed of the main power shaft of the generator, if the external power is large, the rotational speed is high, and if the external power is small, the rotational speed is low. As the best choice of the present invention, the signal acquisition and transmission module includes: A speed measuring encoder, which is connected with the main power shaft to detect its speed and output a signal, which is a speed signal.

As another option, the signal acquisition and transmission module is connected with a unit coil part of a power generation module to detect the power related value of a power generation module and output a signal, and the signal acquisition and transmission module includes a voltage sensor or a current sensor or a power sensor. Because each unit magnet part is fixedly connected to the main power shaft and rotates synchronously, the magnitude of the external power can be sensed by detecting the power related value of a power generation module, where the power related value can be a current value, a voltage value or a power value.

As another option, the signal acquisition and transmission module includes a torque sensor, and the torque sensor is connected with the main power shaft to detect torque information of the main power shaft and output a signal.

The change of the torque value of the main power shaft after the input of external power is that the torque value gradually increases or decreases gradually. Therefore, a plurality of sequentially increasing numerical ranges are preset in the controller. When the torque value of the main power shaft is in different When the value is in the interval, the controller controls to turn on the output circuits of different numbers of unit coil parts, thereby controlling different numbers of power generation modules to participate in power generation. Specifically, for example, when the torque value of the main power shaft is in the range of 1 kN to 2 kN after the external power is input, the controller controls to turn on the output circuit of one unit coil part to make one power generation of the generator The module participates in power generation. When the torque value of the main power shaft is in the value range of 2.1 kN to 3 kN, the controller controls to turn on the output circuits of a total of two power generation modules so that the two power generation modules of the generator participate in power generation at the same time. analogy.

In order to ensure that the output current of the generator complies with the standard of external grid-connected power supply or the preset demand standard, the generator also includes a rectifier and an inverter corresponding to each of the unit coil parts, and the input of the unit coil part and the rectifier The terminal is electrically connected, and the output terminal of the rectifier is electrically connected to the input terminal of the inverter. The alternating current output from the power generation module is converted into direct current by the rectifier, and then the direct current is converted into the standard alternating current by the inverter, so that it can be connected to the external grid or used directly. An on-off switch module is arranged between the rectifier and the inverter, which facilitates the control of the output circuit of the unit coil part.

The beneficial technical effect of the automatic yaw multi-module wind power generator of the utility model is that an integral generator is composed of a plurality of power generation modules that can operate independently and have respective rated powers. The rated power can be adjusted in real time by loading or unloading different numbers of power generation modules. The rated power of the overall generator can be changed according to the change of the wind input from the outside, not constant, so it can fully adapt to different application segments. external wind input; when the input wind is large, more power generation modules of the generator are controlled by the controller to participate in power generation, so that the rated power of the overall generator increases; when the input external wind is small, the controller controls more power. Fewer power generation modules participate in power generation, so that the rated power of the overall generator is reduced, so that the generators can generate normal or basically normal power with different rated powers in different application sections of the external wind power. Therefore, the utility model greatly improves the adaptability and utilization rate of the generator to unstable external wind energy, and can use strong wind to generate electricity, and also can use light wind to generate electricity. At the same time, the automatic yaw system enables the generator to always obtain the largest wind-receiving area, capture more wind energy, and greatly increase the power generation; the angle sensor in the yaw system can limit the deflection angle of the equipment within a certain reasonable range , avoid equipment damage caused by excessive deflection, and ensure the overall safety and stability of the generator equipment. Moreover, in the face of typhoon-level wind conditions, the controller can also combine the signals transmitted by the wind speed sensor and the angle sensor to control the optimal angle of yaw to avoid damage to the equipment by the typhoon.

The automatic yaw multi-module wind power generator of the utility model can be widely used in various wind farms and industrial and mining enterprises, and especially can be used in border guard posts, island garrison, plateau deserts and other difficult areas where it is very inconvenient to erect transmission lines and the cost is very high of power supply.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the generator embodiment of the present utility model;

2 is a schematic structural diagram of the magnetic disk and the magnet (left magnetic disk, right magnetic disk, left magnet, right magnet) of the unit magnet portion in the generator embodiment of the present utility model;

3 is an exploded perspective view of an embodiment of the generator of the present invention;

Fig. 4 is the logical relation diagram of the superposition of the power generation module of the utility model (the signal acquisition and transmission module adopts the speed measuring encoder);

FIG. 5 is a control logic diagram of the controller of the present invention.

Reference numerals in the drawings include: motor casing 1, main power shaft 2, power generation module 3, unit magnet part 31, unit coil part 32, screws 33, fins 11 for heat dissipation, controller 4, signal acquisition and transmission module 5.

Detailed ways

The following is further described in detail by specific embodiments:

As shown in Figures 1 to 3, it is a preferred embodiment of the automatic yaw multi-module wind turbine, including: a motor casing 1, a main power shaft 2, and four generators serially connected to the main power shaft 2 in sequence The module 3 and the control system, the motor casing 1 includes an upper casing, a lower casing and a front end cover and a rear end cover fixed by bolts. The main power shaft 2 and the power generation module 3 are installed in the motor casing 1. There are also heat dissipation fins 11 that facilitate heat dissipation. Each of the power generation modules 3 includes a unit magnet portion 31 and a unit coil portion 32 , specifically, each unit magnet portion 31 includes a set of left and right magnetic disks disposed opposite to each other. The poles are staggered on the left disk, and a number of right magnets are staggered on the right disk according to the S and N poles, and the oppositely arranged left magnets are opposite to the right magnets. There are corresponding gaps between the magnetic disks. The left magnetic disk and the right magnetic disk of each unit magnet part 31 are respectively fixedly connected with the main power shaft 2 through key slots and can rotate with the main power shaft 2 to form the rotor of the generator. The unit coil part 32 is fixed on the motor casing 1 by screws 33, the unit coil part 32 constitutes the stator of the generator, and the interior of the unit coil part 32 is composed of a plurality of small coil packs arranged in sequence, and the overall composition is the same as that of the left magnetic disk and the right magnetic disk. Shape-matched coil discs, small coil packs are made of enameled copper wire, and the number of small coil packs can be determined according to demand and the power of the generator.

The unit coil part 32 is located in the gap between the left magnet (left disk) and the right magnet (right disk), so one unit coil part 32 is sandwiched between the two disks (left disk, right disk), of course There is a certain distance between the magnetic disk (left magnetic disk, right magnetic disk) and the unit coil part 32 so that the magnetic disk can rotate normally without rubbing the unit coil part 32 . The end faces of the left and right magnetic disks are substantially parallel to the end faces of the unit coil portion 32 and are substantially perpendicular to the axis of the main power shaft 2; A certain clearance is provided so that the magnetic disk does not rub against the motor casing 1 when it rotates. When the unit magnet part 31 rotates with the main power shaft 2 , the unit coil part 32 can cut the magnetic field lines between the left magnet and the right magnet.

In this embodiment, two adjacent unit magnet parts 31 share one magnetic disk, and the magnetic disk also serves as the left magnetic disk of one unit magnet part 31 and the right magnetic disk of another adjacent unit magnet part 31, and several left magnetic disks The magnet and the right magnet are respectively arranged on both sides of the magnetic disk. This optimization can make the structure of the generator more compact, and can save one magnetic disk between two adjacent unit magnet parts 31, thereby saving cost.

Each power generation module 3 has its own rated power. In this embodiment, the rated power of each power generation module 3 is the same, and the total rated power of the generator is the sum of the rated power of each power generation module 3 . A plurality of power generation modules 3 are serially connected to the main power shaft 2 in sequence, so that each power generation module 3 can simultaneously receive the external power transmitted by the main power shaft 2 .

The generator also includes a power switch, a display, and a power indicator. The display is signal-connected to the controller. The display has an operation interface to facilitate setting control parameters in the controller. The power indicator is electrically connected to the controller.

The control system includes a controller 4 and a signal acquisition and transmission module 5 (as shown in FIG. 4 ). The signal acquisition and transmission module 5 is signal-connected with the controller 4. To control the conduction of the output circuit of each unit coil part 32, the controller 4 controls the number of the power generation modules 3 participating in power generation by controlling the number of the unit coil parts 32 whose output circuit is turned on. Specifically, the controller 4 can choose from many devices, which can be a single-chip computer or a PLC controller. In this embodiment, a Siemens PLC is selected. The signal acquisition and transmission module 5 includes a speed measuring encoder in this embodiment, for example, a Hall sensor can be selected to detect the rotational speed of the main power shaft 2, and the speed measuring encoder is connected with the main power shaft 2 to detect its rotational speed and output a signal. is the speed signal. The change of the input external wind force is first reflected on the rotational speed of the main power shaft 2 of the generator. If the external wind force is large, the rotational speed will be high, and if the external power is small, the rotational speed will be low. It is a more preferable way to realize the control by detecting the rotational speed of the main power shaft 2. . When the rotational speed of the main power shaft 2 reaches the preset rotational speed upper limit value, the controller 4 controls to turn on the output circuit of a unit coil part 32 to load a power generation module 3 to participate in power generation. If the power is opposite to the reverse torque, the rotational speed drops to the original rotational speed range; when the rotational speed of the main power shaft 2 reaches the preset rotational speed lower limit value, the controller 4 controls to disconnect the output circuit of a unit coil portion 32 to unload a For the power generation module 3 that has participated in power generation, a reverse torque opposite to the external power is unloaded on the main power shaft 2 at this time, and its rotational speed rises to within the original rotational speed range. In this way, when the external power increases, the controller 4 will control the output circuits of a larger number of unit coil parts 32 to be turned on, so that more power generation modules 3 participate in power generation. When the external power is small, the controller 4 will control the conduction Through the output circuit of a smaller number of unit coil parts 32, fewer power generation modules 3 participate in power generation. This solution enables the number of power generation modules 3 participating in power generation and the rated power of the generator to be adjusted in real time with the change of external power. And because the rotational speed of the main power shaft 2 is always maintained within a constant range, the current output by the power generation module 3 participating in power generation is relatively stable and meets certain frequency and voltage standards.

In order to ensure that the current output by the generator complies with the standard of external grid-connected power supply or the preset demand standard, the generator further includes a rectifier and an inverter (not shown in the figure) corresponding to each of the unit coil parts 32 one-to-one. , the unit coil part 32 is electrically connected to the input end of the rectifier, and the output end of the rectifier is electrically connected to the input end of the inverter. The alternating current output from the power generation module 3 is converted into direct current by a rectifier, and then the direct current is converted into standard alternating current by an inverter, so that it can be connected to the grid for external power supply or used directly.

In order to better control the output circuit of the coil part 32 of the unit, the control system also includes a plurality of on-off switch modules, the on-off switch modules are arranged between the rectifier and the inverter, and the on-off switch modules are electromagnetic switches; Connected with the on-off switch module, the output circuit of each of the unit coil parts 32 is connected in series with one of the on-off switch modules; the controller 4 can control the on-off switch module according to the received signal from the signal acquisition and transmission module 5 to control the conduction of the output circuit of the unit coil part 32 .

The superposition and unloading of each power generation module of the automatic yaw multi-module wind power generator of the present invention are realized in this way. C, D) participate in power generation, in the present embodiment, the speed measuring encoder is used as the signal acquisition and transmission module to perceive and transmit the rotational speed information of the main power shaft, and the control of the module superposition of the present embodiment includes the following steps:

A. Preset an upper speed limit value and a speed lower limit value in the controller 4;

B, the external power drives the main power shaft 2 of the generator to rotate and drives the unit magnet parts 31 of each power generation module 3 to rotate, and the speed measuring encoder detects and collects the rotational speed information of the main power shaft 2 and transmits the rotational speed signal to the controller 4;

C. When the rotational speed of the main power shaft 2 reaches the rotational speed upper limit value, the controller 4 controls to conduct the output circuit of a unit coil part 32, the unit coil part 32 is connected to the external load to form a loop, and the unit coil part The electric potential generated by 32 forms a current in the loop, so that a power generation module 3 is loaded to participate in power generation, and the rotation speed of the main power shaft 2 drops to between the upper limit value of the rotation speed and the lower limit value of the rotation speed;

D. The external power increases so as to drive the rotational speed of the main power shaft 2 to increase. When the rotational speed reaches the upper limit of the rotational speed again, the controller 4 controls to conduct the output circuit of a unit coil portion 32, and the unit coil portion 32 communicates with the outside world. The load is turned on to form a loop, and the electric potential generated by the unit coil part 32 forms a current in the loop, so that another power generation module 3 is loaded to participate in power generation. At this time, the rotation speed of the main power shaft 2 drops to the upper limit value of the rotation speed and the rotation speed. between the lower limit.

By analogy, when the external power continues to increase, N power generation modules 3 can be gradually loaded and participate in power generation at the same time to match the external input power and the increase of power, so that the generator can always generate power normally within a constant speed range. The output meets the standard. current. When the external power is reduced, the generator can also unload the power generation module 3 that has participated in the power generation, and includes the following steps:

E. When the external power is gradually reduced and the rotational speed of the main power shaft 2 reaches the lower limit of the rotational speed, the controller 4 controls to disconnect the output circuit of a unit coil portion 32, and the unit coil portion 32 is disconnected from the circuit of the external load. When the unit coil part 32 is turned on, the unit coil part 32 only generates an electric potential but cannot form a current, thereby unloading a power generation module 3 that has participated in the power generation, and the rotation speed of the main power shaft 2 rises to between the upper speed limit value and the lower speed limit value;

F. When the external power continues to gradually decrease and the rotational speed of the main power shaft 2 reaches the lower limit of the rotational speed again, the controller 4 controls to disconnect the output circuit of a unit coil part 32, and the unit coil part 32 is connected to the external load. The circuit is disconnected, the unit coil part 32 only generates electric potential but cannot form current, so that another power generation module 3 that has participated in power generation is unloaded.

Specifically, the encoder of the type Bourns EMS22D51-B28-LS5 is selected as the speed measuring encoder, which is installed on the main power shaft 2 to detect the rotational speed of the main power shaft 2 .

The generator is also provided with an automatic yaw system, which includes a yaw motor, a wind direction detector, and an angle sensor. The wind direction detector and the angle sensor are all signally connected to the controller, and the controller is electrically connected to the yaw motor. connect.

The yaw motor adopts a conventional motor, and its power source can be the current generated by the generator. The motor drives the overall steering of the wind turbine main engine through the gear structure, so that the blades that capture wind energy are facing the incoming wind, so that the windward surface of the blades is maximized. Get more wind energy. As can be seen from Figure 5, the wind direction detector is connected to the controller signal to sense the wind direction and transmit the wind direction signal to the controller, and the controller sends commands to control whether the yaw motor is running and the direction of operation; the angle sensor is used to sense the generator equipment. The overall yaw angle is transmitted to the controller. When the yaw angle is greater than a preset value, the controller instructs the motor to stop running to ensure the stability and safety of the power generation equipment and avoid damage to the equipment caused by excessive deflection. The preset deflection angles include a positive maximum value and a negative maximum value, which control the maximum deflection angle of the generator and blades in two opposite directions. Of course, a wind speed sensor can also be added to the motor. The wind speed sensor transmits the wind speed signal to the controller. When the wind speed reaches a certain preset value of the typhoon level, the controller instructs the deflection motor to deflect a certain angle to avoid strong winds and ensure safety. When the deflection angle reaches the preset safe angle, the yaw motor stops deflection. Here, the wind speed signal and the deflection angle signal are combined to control, and the wind speed value and the deflection angle value are preset in the controller in advance.

The above are only examples of the present utility model, and common knowledge such as the well-known specific structures and characteristics in the scheme have not been described too much here. Those of ordinary skill in the art know that the utility model belongs to the technical field before the filing date or the priority date. General technical knowledge, it should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present utility model, several deformations and improvements can also be made, and these should also be regarded as the protection scope of the present utility model. The claimed scope of protection shall be based on the content of the claims, and the descriptions of the specific implementation manner in the description can be used to interpret the content of the claims.

Claims (8)

1. Automatic many modules aerogenerator drifts characterized in that: comprises that

A motor housing, a main power shaft;

a plurality of power generation modules connected in series on the main power shaft in sequence; each of the power generation modules includes a unit magnet portion and a unit coil portion; the unit magnet parts are respectively fixedly connected with the main power shaft and can rotate along with the main power shaft to form a rotor of the generator, and the unit coil parts form a stator of the generator;

the control system comprises a controller and a signal acquisition and transmission module, wherein the signal acquisition and transmission module is in signal connection with the controller, the controller respectively controls the conduction of the output circuits of the unit coil parts according to the received signals from the signal acquisition and transmission module, and the controller controls the number of the power generation modules participating in power generation by controlling the number of the unit coil parts conducted by the output circuits;

the automatic yawing system comprises a yawing motor, a wind direction detector and an angle sensor, wherein the wind direction detector and the angle sensor are in signal connection with the controller, and the controller is electrically connected with the yawing motor.

2. The auto-yaw multi-module wind turbine according to claim 1, wherein: the control system also comprises a plurality of on-off switch modules; the controller is respectively connected with the on-off switch modules, and the output circuit of each unit coil part is connected with one on-off switch module in series; the controller can control the conduction of the on-off switch module according to the received signals from the signal acquisition and transmission module so as to control the conduction of the unit coil part output circuit.

3. The auto-yaw multi-module wind turbine according to claim 1 or 2, wherein: the unit magnet part comprises a plurality of left magnets and right magnets which are arranged oppositely, a gap is reserved between the left magnets and the right magnets, and the unit coil part is positioned in the gap.

4. The auto-yaw multi-module wind turbine according to claim 3, wherein: the unit magnet part comprises a group of left and right magnetic disks which are oppositely arranged, the left magnetic disk is arranged on the left magnetic disk in a staggered mode according to N poles and S poles, and the right magnetic disk is arranged on the right magnetic disk in a staggered mode according to S poles and N poles; and the left magnet and the right magnet which are oppositely arranged have opposite magnetic poles.

5. The auto-yaw multi-module wind turbine according to claim 4, wherein: two adjacent unit magnet parts share one magnetic disc, the magnetic disc is simultaneously used as a left magnetic disc of one unit magnet part and a right magnetic disc of the other adjacent unit magnet part, and the left magnet and the right magnet are respectively arranged on two surfaces of the magnetic disc.

6. The auto-yaw multi-module wind turbine according to claim 4, wherein: the unit coil part is a coil disc matched with the left magnetic disc and the right magnetic disc in shape, and a plurality of small coil packs are arranged in the coil disc.

7. The auto-yaw multi-module wind turbine according to claim 1 or 2, wherein: the signal acquisition and transmission module comprises a speed measurement encoder which is connected with the main power shaft to detect the rotating speed of the main power shaft and output signals.

8. The auto-yaw multi-module wind turbine according to claim 1 or 2, wherein: the signal acquisition and transmission module is connected with a unit coil part of a power generation module to detect the power related value of the power generation module and output a signal, and comprises a voltage sensor or a current sensor or a power sensor.

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