JP3133195U - Wind generator with built-in rotor that starts at low wind speed - Google Patents

Abstract

A rotor generator with a built-in rotor that starts at a low wind speed is provided.
A wind turbine, a generator, a combination unit, and a tail are provided. The windmill 20 includes a disk 21 and a unit blade 22 attached to the periphery of the disk 21. The rotor of the generator is connected to the disk 21 and receives electrical energy delivered by the disk 21 to generate electrical energy. The combination unit is connected to the power transmission line of the generator and sends out the electric power generated by the generator. The generator and the combination unit are installed in the casing 32. The tail 50 is fixed to the bottom of the casing 32 with a connecting rod 51. The tail 50 is turned in the direction in which the wind turbine 20 and the casing 32 are effectively subjected to wind by the action of wind force.
[Selection] Figure 2

Description

  The present invention relates to wind power generation equipment, and more particularly to a wind generator with a built-in rotor that starts at a low wind speed.

  The windmill shown in FIG. 1 has a blade connected to one disk, and the blade is a long-band three-piece type. The area of the disk occupies only a very part of the entire windmill. According to the structural mechanics, the structural strength of the long-striped blade is unstable. When subjected to wind, the phenomenon of bending occurs, and it is prominent that the wind sways.

  Whether or not the wind power generator is easily started is determined by the inertial mass and step rotation torque of the generator rotor. The smaller the rotor inertial mass, the easier it is to start. The generator of the high step rotation moment has a step rotation point, and the low speed startup is not smooth, and the startup wind speed of the windmill is relatively high.

  The wind power generator has an independent generator facility at the rear end of the wind turbine, which integrates the generator and the rectifier in a casing. At the stage of assembling the wind power generator, it is necessary to first confirm a specific voltage (for example, 12V, 24V, 36V, 48V) adopted in the rear-end power storage system or power supply load system, and then the specific voltage can be output. Select power generation equipment. The means for responding to different voltage outputs by exchanging the power generation equipment increases the installation cost of the wind power generator, but the voltage output and application range are limited to a certain range.

  In view of the above analysis, the generator of the present invention has the ability of the blade to pick up wind energy, the structure strength of the windmill, the utilization rate of wind energy, the inertia mass of the rotor of the generator, the step rotation torque, the starting wind speed, and the output of voltage. Improved design for the isotropic direction.

  The present invention is an inner rotor type wind power generator that starts at a low wind speed, and includes a windmill, a generator, a combination unit of a carbon brush sliding ring, and a tail, and the main part of the windmill is a disk and a unit attached to the periphery of the disk Including a blade, the rotor of the generator is connected to the disk, electrical energy is generated in response to the mechanical energy delivered by the disk, the combined unit of the carbon brush sliding ring is connected to the power transmission line of the generator, The power generated by the generator is sent out, and the combined unit of the generator and the carbon brush sliding ring is installed in the casing, the tail is fixed to the bottom of the casing with a connecting rod, and the disc has a disk structure, A joint edge is provided on the outer circumference of the unit blade, and the joint edge is used for attachment to the unit blade. Is the sum of the lengths of the radius and the unit blades of said disk constitutes the radius of the area where the wind turbine is graze. The unit blade is configured in the shape of a plate with a proportion of its long width, and is attached to the joint edge of the disk with an average interval of five to six, the generator is of the inner rotor type, and With the characteristics of low rotor inertia mass and low step rotation moment, the wind power generator adopts a high fixed voltage output, and the voltage is adjusted with a rear end conversion system.

  That is, the first device of the present invention is a wind generator with a built-in rotor that starts at a low wind speed, and includes a wind turbine 20, a generator 30, a combination unit (unit) 40, and a tail 50. The windmill includes at least a disk 21 and a unit blade 22 attached to the periphery of the disk 21, and the rotor 31 of the generator is connected to the disk 21 and delivered to the disk 21. The combination unit 40 is connected to the power transmission line 34 of the generator 30 to send out the electric power generated by the generator 30 and the combination unit. 40 is installed in a casing 32, and the tail 50 is connected to a connecting rod 51. Thus, the disk 21 is fixed to the bottom of the casing 32, the disk 21 has a disk structure, and a joint edge 23 is provided on the outer periphery of the disk structure. The joint edge 23 is attached to the unit blade 22, and the unit blade 22 A joining groove 24 is provided at an end portion where the joining edge 23 is assembled, the joining edge 23 is fitted into the joining groove 24, and the unit blade 22 is fixed to the joining edge 23 with a fixing member 25. The sum of the radius of the disk 21 and the length of the unit blade 22 constitutes a radius in the area occupied by the windmill, and the diameter of the disk 21 occupies at least one-half or more of the length of the unit blade 22, The disk 21 and the unit blade 22 cooperate to acquire wind energy, and the unit blade 22 A wide plate shape is formed in proportion to the long width of the unit blades, and at least five unit blades are attached to the joining edge 23 of the disk 21 at equal intervals. The main point is that it is a wind generator with a built-in rotor that starts.

  Also, according to a second device of the present invention, the power generator 30 is a power generator having a low characteristic of inertia and step rotational moment of the rotor. The rotor is a wind generator with a built-in rotor that starts at a low wind speed.

  According to a third aspect of the present invention, the output voltage of the wind power generator is three-phase 80 volts, and the voltage is adjusted to a specific voltage value by a rear end conversion system. The gist of the present invention is the wind generator with a built-in rotor that starts at a low wind speed described in the first device of the present invention.

  The windmill of the present invention can increase the utilization rate of wind energy and can be activated in a wind environment with a low wind speed.

  The windmill of the present invention has a function of improving stable operation.

  The generator of the present invention has the characteristics of low rotor inertia mass and low step rotation moment.

  The wind power generator of the present invention can reduce the cost of using the renewable energy at the rear end.

  Embodiments of the present invention will be described below with reference to the drawings.

  As shown in the drawings, the wind power generator of the present invention includes a windmill 20, a power generator 30, a carbon brush sliding ring combination unit 40, and a tail 50. The main part of the windmill 20 includes a disk 21 and unit blades 22 attached to the periphery of the disk 21. The rotor 31 of the generator 30 is connected to the disk 21 and generates electrical energy in response to mechanical energy delivered by the disk 21. The carbon brush sliding ring combination unit 40 is connected to the power transmission wire 34 of the generator 30 and sends out the electric power generated by the generator 30. The generator 30 and the carbon brush sliding ring combination unit 40 are installed in a casing 32. The tail 50 is fixed to the bottom of the casing 32 with a connecting rod 51. The tail 50 is turned in the direction in which the wind turbine 20 and the casing 32 receive wind effectively by the action of wind force.

  The design of the tail 50 is a mechanism for rotating the casing 32 and the windmill 20 by wind, which faces the problem of entanglement of the power transmission wire 34 of the generator, so that the combination unit 40 of the carbon brush sliding ring is used. Resolve. The carbon brush 41 of the carbon brush sliding ring combination unit 40 is connected to the power transmission wire 34 of the generator 30, the copper ring 42 is attached to the outside of the fixed shaft 43, and the casing 32 rotates around the fixed shaft 43. The carbon brush 41 has a fixed relationship with the casing 32 with a connector 44, and the carbon brush 41 rotating with the casing 32 comes into contact with the fixed copper ring 42 to transfer electrical energy to the copper. The copper ring 42 is connected to another power transmission wire 45, and the power transmission wire 45 penetrates into the fixed shaft 43 and extends to the outside of the casing 32. In this way, no matter how much the casing 32 rotates, the power transmission wire 45 is not affected, and the problem of tangling the wires does not occur.

  The disk 21 of the wind turbine 20 of the present invention has a disk structure, and a joining edge 23 having a thickness smaller than that of the disk is provided on the outer periphery, and the joining edge 23 is attached to the unit blade 22. A joining groove 24 is provided at an end portion where the unit blade 22 and the joining edge 23 are combined, the joining edge 23 is fitted into the joining groove 24, and the unit blade 22 is attached to the joining edge with a slight fixing member 25. 23.

  The rotor of the inventive wind power generator shown in the drawings has a power generation structure that rotates inside a stator. A rotor with a small diameter has a small inertial mass of the rotor and is easy to start.

  The radius of the disk of the wind turbine of the present invention and the length of the unit blade occupy a considerable proportion of the radius of the area of each, and the area of the wind turbine is increased with a large diameter disk. The area of the wind turbine will increase, and the wind energy utilization rate of the windmill will improve.

  The disc of the wind turbine of the present invention has a structure having a large area ratio with respect to the whole wind turbine, and the disc constitutes the center of mass of the wind turbine, has the effect of stabilizing the rotational center of gravity of the wind turbine, and reduces the noise of rotation. To do.

The present invention employs a permanent magnet generator, and the generator rotor diameter is set to 32 mm, the magnet thickness is set to 3 mm, and the total length is set to 99 mm. The rotor inertia mass formula J = 1/4 GD ² [G is the rotor weight (KG), D is the rotor diameter (m)], and the generator of the present invention has a low rotor inertia mass. It can be seen that the generator itself is easy to start up.

  For permanent magnet electric machines, one way to lower the step rotation is to reduce the difference in the induced flux linkage, and that means adopts a fractional slot method, giving the magnet and slot teeth the opportunity to head straight. By reducing or increasing the least common multiple of the number of poles and the number of slots, for example, by dividing the number of poles and the least common multiple of the slots of the stator with a spatial angle of 360 degrees by 8 poles and 9 slots, the period of 8 poles and 9 slots is 5 The mechanical angle of the step rotation is small and the step rotation situation can be clearly improved.

  The wind power generator of the present invention adopts a three-phase 80 volt or higher high fixed voltage output, and further converts to a specific low voltage AC electricity or DC electricity via a rear end conversion system (transformer, rectifier). As a result, the wind power generator of the present invention has transmission characteristics such as a small voltage drop, a small copper loss, and a small heat loss.

In addition, the wind generator with high fixed voltage output uses a means for changing the rear end conversion system (transformer, rectifier) to cope with the specific voltage of the rear end power storage system or the power consumption system. Simply put, a single wind power generator can accommodate different power storage systems or power consumption systems, the only difference being the conversion of the rear end conversion system (transformer, rectifier), this conversion being carried out Therefore, the construction cost of the wind power generator can be significantly reduced, and the cost of using the renewable energy at the rear end can be reduced.

It is a top view of the windmill of the conventional wind power generator. It is an external view of the wind power generator of this invention. It is a side view of the wind power generator of this invention. It is a three-dimensional exploded view of the wind power generator of the present invention. It is the side view of the windmill of this invention, and the attachment intention figure inside a generator. It is a bottom view of the windmill of this invention, and shows the mode of the bottom part of a wind power generator.

Explanation of symbols

20 windmill 21 disk 22 unit blade 23 joint edge 24 joint groove 25 fixed unit 30 generator 31 rotor 32 casing 34 power transmission wire 40 combination unit 41 carbon brush 42 copper ring 43 fixed shaft 44 connector 50 tail blade 51 connecting rod

Claims (3)

A wind generator with a built-in rotor that starts at a low wind speed,
Including a windmill, generator, combination unit, and tail,
The windmill includes at least a disk and a unit blade attached to the periphery of the disk,
The rotor of the generator generates electrical energy in response to mechanical energy delivered by the disk connected to the disk,
The combination unit is connected to the power transmission line of the generator to send out power generated by the generator,
The generator and the combination unit are installed in a casing,
The tail is fixed to the bottom of the casing with a connecting rod;
The disk has a disk structure, and a bonding edge is provided on the outer periphery of the disk structure.
The joining edge is attached to the unit blade,
The end where the unit blade and the joining edge are combined is provided with a joining groove,
The joining edge is fitted into a joining groove, and the unit blade is fixed to the joining edge with a fixing member,
The total of the radius of the disk and the length of the unit blade constitutes the radius in the area occupied by the windmill,
The diameter of the disk occupies at least one-half of the length of the unit blade;
Wind energy is acquired in cooperation with the disk and the unit blade,
The unit blade has a wide plate shape in proportion to the long width of the unit blade, and at least five unit blades are attached to the joint edge of the disk at equal intervals.
Wind generator with built-in rotor that starts at low wind speed. 2. The wind generator with a built-in rotor that starts at a low wind speed according to claim 1, wherein the generator is a generator having a low inertial mass and step rotation moment of the rotor. The output voltage of the wind power generator is three-phase 80 volts, and the voltage is adjusted to a specific voltage value by a rear end conversion system. Wind generator.

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