Efficient direct-current breeze generator and power generation system

Abstract

The utility model belongs to the technical field of breeze power generation, and discloses a high-efficiency direct-current breeze generator and a power generation system, the generator comprises a stator, the stator is of an annular structure, a plurality of winding clusters are arranged on the stator, and each winding cluster is provided with at least one group of blade type windings; the number of the full-wave rectifiers is in one-to-one correspondence with the number of the blade windings, and the two ends of each group of blade windings are electrically connected with the two input ends of the corresponding full-wave rectifier respectively; and in the same winding cluster, the output sides of the full-wave rectifiers connected with at least one group of blade type windings are connected in series to form a direct current output end, and the direct current output ends of the plurality of winding clusters are connected in parallel. According to the breeze generator provided by the utility model, the situation that the total voltage is reduced due to offset parts caused by different phases is avoided, and the generating efficiency is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of breeze power generation, and in particular relates to a high-efficiency DC breeze generator and a power generation system. Background Art

[0002] Breeze power generation technology utilizes breezes (typically wind speeds between 3 and 20 meters per second) to generate electricity. Key to this technology is its ability to operate effectively in relatively low wind speeds, whereas traditional wind turbines require higher wind speeds. The emergence of breeze power generation technology has broadened the application scope of wind power generation, enabling it to generate electricity in areas with limited wind resources, and even in light wind environments such as cities.

[0003] Breeze power generation technology primarily utilizes specially designed breeze generators, such as vertical-axis wind turbines (VAWTs), which can capture wind from any direction and have low wind speed requirements. However, practical applications of breeze generators present the following challenges: They typically output alternating current (AC), which is processed and output in a superimposed manner. However, when AC currents of different phases are superimposed, they partially cancel each other out, resulting in a lower overall output voltage and reduced power generation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency DC breeze generator and power generation system to solve the problem that the AC power generated by the existing breeze generator will be superimposed and output, and when the AC power of different phases is superimposed, it will cancel each other out due to the different phases, resulting in a decrease in the total output voltage and a reduction in power generation efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a high-efficiency DC breeze generator, comprising:

[0007] The stator has an annular structure and is provided with a plurality of winding clusters, each winding cluster having at least one set of blade-type windings;

[0008] A plurality of full-wave rectifiers, the number of the plurality of full-wave rectifiers corresponds to the number of the blade-type windings, and the two ends of each set of blade-type windings are electrically connected to the two input ends of a corresponding full-wave rectifier;

[0009] In the same winding cluster, the output sides of the full-wave rectifiers connected to at least one set of blade-type windings are connected in series to form a DC output end, and the DC output ends of several winding clusters are connected in parallel.

[0010] Preferably, a switching switch is connected in series between the positive pole of the DC output end of each winding cluster and the positive common end at the parallel connection of the DC output end of the winding cluster, or a switching switch is connected in series between the negative pole of the DC output end of each winding cluster and the negative common end at the parallel connection of the DC output end of the winding cluster.

[0011] Preferably, the generator further comprises: a casing, the casing is a disc, and the upper surface and the lower surface of the disc are both conical, and the stator and the plurality of full-wave rectifiers are disposed in the casing.

[0012] Preferably, the generator further comprises: a rotor, the rotor comprising: an annular frame, an inner ring sleeve being connected to the inner ring of the annular frame, an outer ring sleeve being connected to the outer ring of the annular frame, the stator being inserted between the outer ring sleeve and the inner ring sleeve, and a plurality of magnetic strips being inlaid on the opposite side walls of the inner ring sleeve and the outer ring sleeve.

[0013] Preferably, the stator comprises: an annular I-shaped bracket, an iron core sleeve is sleeved on the I-shaped bracket, and the iron core sleeve is composed of a plurality of stacked silicon steel sheets.

[0014] In a second aspect, the present invention provides a high-efficiency DC breeze power generation system, the system comprising:

[0015] A tower, with vertical blades installed on the top of the tower;

[0016] The above-mentioned high-efficiency DC breeze generator is installed on a pole tower, and the vertical blades are connected to the rotor of the high-efficiency DC breeze generator so that the rotor of the high-efficiency DC breeze generator is driven to rotate by the rotation of the vertical blades.

[0017] Preferably, the system further comprises: a DC converter, a battery and an inverter, the DC output end of the high-efficiency DC breeze generator is electrically connected to the input end of the DC converter, and the output end of the DC converter is electrically connected to the charging end of the battery and the input end of the inverter.

[0018] Preferably, a diode is connected in series to the output end of the DC converter, and the charging end of the battery and the input end of the inverter are connected to the cathode of the diode.

[0019] Preferably, the system further comprises:

[0020] Intelligent controller;

[0021] A switch controller, communicatively connected to the intelligent controller, for controlling the closing or opening of a switch of the high-efficiency DC breeze generator;

[0022] a generator power measuring device, communicatively connected to the intelligent controller, wherein the generator power measuring device is used to detect the real-time power of the high-efficiency DC breeze generator and upload the detected real-time power of the high-efficiency DC breeze generator to the intelligent controller;

[0023] A wind speed measuring device is communicatively connected to the intelligent controller, wherein the wind speed measuring device is used to detect the real-time wind speed of the external environment and upload the detected real-time wind speed of the external environment to the intelligent controller;

[0024] The power measurement device is connected to the intelligent controller for communication. The power measurement device is used to measure the real-time power of the battery and upload the detected real-time power of the battery to the intelligent controller.

[0025] Beneficial effects:

[0026] The utility model utilizes a full-wave rectifier to rectify the alternating current output by the winding into direct current. The output side of the full-wave rectifier connected to at least one group of blade-type windings in a winding cluster is connected in series. At this time, the total DC voltage of a cluster is the sum of the DC voltages of multiple blade-type windings. Then, multiple winding clusters are connected in parallel. At this time, the total DC current output by the entire winding is the sum of the DC currents of each winding cluster. Since the current and voltage are added using DC voltage or DC current during the superposition process, there will be no partial cancellation due to different phases, which will cause the total voltage to decrease. Therefore, the breeze generator of the utility model has higher power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present invention, but do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0028] Figure 1 This is a schematic diagram of the stator structure of a high-efficiency DC breeze generator provided by one embodiment of the present utility model;

[0029] Figure 2 This is a wiring diagram of each winding cluster of a high-efficiency DC breeze generator provided by one embodiment of the utility model;

[0030] Figure 3 This is a schematic diagram of a parallel connection of multiple winding clusters of a high-efficiency DC breeze generator provided by one embodiment of the utility model;

[0031] Figure 4 This is a schematic diagram of the appearance and structure of a high-efficiency DC breeze generator provided by one embodiment of the utility model;

[0032] Figure 5This is a block diagram of the layout of a high-efficiency DC breeze power generation system provided by one embodiment of the present utility model;

[0033] Figure 6 This is a connection diagram of a DC converter, a battery, and an inverter provided in one embodiment of the utility model.

[0034] Description of reference numerals:

[0035] 1. Blade winding; 2. Full-wave rectifier; 3. Switch; 4. Casing; 5. Wiring harness; 6. Ring frame; 7. Inner ring sleeve; 8. Outer ring sleeve; 9. Magnetic strip; 10. I-shaped bracket; 11. Core casing. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly introduced below in conjunction with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structures of the drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0037] Example 1

[0038] Figure 1 This is a schematic diagram of the stator structure of a high-efficiency DC breeze generator provided by one embodiment of the present invention. Figure 1 As shown, this embodiment provides a high-efficiency DC breeze generator, which includes: a stator and a plurality of full-wave rectifiers 2;

[0039] The stator is annular in structure and is provided with a plurality of winding clusters, each of which has at least one set of blade-type windings 1;

[0040] The number of the plurality of full-wave rectifiers 2 corresponds to the number of the blade-type windings 1 one by one, and the two ends of each set of blade-type windings 1 are electrically connected to the two input ends of a corresponding full-wave rectifier 2 respectively;

[0041] In the same winding cluster, at least one set of blade windings 1 are connected in series to the output side of the full-wave rectifier 2, such as Figure 2 , to form a DC output terminal, the DC output terminals of several winding clusters are connected in parallel, such as Figure 3 shown.

[0042] In this embodiment, the AC output of each group of blade-type windings 1 is rectified by a full-wave rectifier 2 to form a DC voltage U and a current I. All blade-type windings 1 are divided into K winding clusters. A winding cluster has M groups of blade-type windings 1. The DC voltage of a cluster is the sum of the DC voltages of M windings. The AC superposition will offset part of the voltage due to different phases, and the DC method has no offset because the power generation efficiency is higher; each winding process is the same, and the output DC voltage of a cluster is M*U. The output of each cluster is directly connected in parallel after switch control to form a large current of K*I; when all blade-type windings 1 are connected, the output power of the generator is M*U*K*I.

[0043] Therefore, the utility model utilizes a full-wave rectifier 2 to rectify the alternating current output by the winding into direct current, and the output sides of the full-wave rectifier 2 connected to at least one group of blade-type windings 1 in a winding cluster are connected in series. At this time, the total DC voltage of a cluster is the sum of the DC voltages of multiple blade-type windings 1, and then the multiple winding clusters are connected in parallel. At this time, the total DC current output by the entire winding is the sum of the DC currents of each winding cluster. Since the current and voltage are added using DC voltage or DC current during the superposition process, there will be no partial offset due to different phases, which will cause the total voltage to decrease; therefore, the breeze generator of the utility model has higher power generation efficiency.

[0044] As a further optimization of this embodiment, a switching switch 3 is connected in series between the positive pole of the DC output end of each winding cluster and the positive common end of the parallel connection of the DC output end of the winding cluster, or a switching switch 3 is connected in series between the negative pole of the DC output end of each winding cluster and the negative common end of the parallel connection of the DC output end of the winding cluster.

[0045] In this embodiment, when any switching switch 3 is disconnected, the full-wave rectifier 2 connected to the switching switch 3 cannot output, that is, the corresponding blade-type winding 1 is cut off and does not participate in power generation. At this time, the starting magnetic resistance of the generator can be reduced or the number of blade-type windings 1 connected can be adjusted under different wind speeds to increase the power generation power of the generator.

[0046] As a further optimization of this embodiment, Figure 4 As shown, the generator further includes: a casing 4 , which is a disk, and the upper and lower surfaces of the disk are both conical, and the stator and multiple full-wave rectifiers 2 are all disposed in the casing 4 .

[0047] In this embodiment, the housing 4 is in a disc-shaped structure, for example, in the shape of a flying saucer, and the diameter of the housing 4 is about 1 meter. The greater the power, the larger the diameter of the housing 4, which may reach more than 1.6 meters.

[0048] Because both the upper and lower surfaces of the disk are tapered, the surface area of ​​the upper and lower surfaces of the housing 4 is larger, enhancing heat dissipation. Rainy weather often brings strong winds, increasing generator output and internal heat generation. Rainwater falls on the top, carrying away heat downstream, improving heat dissipation and facilitating thermal balance. Furthermore, the streamlined shape minimizes resistance to 360-degree wind.

[0049] Furthermore, the generator adopts a flying saucer structure, providing a larger internal space. The base accommodates the omnidirectional rectifier bridge for blade-type windings 1. The DC outputs of M windings, spaced K apart, are connected in series, superimposed to form a cluster of DC outputs. This creates K cluster outputs, leading to a wiring harness 5 cable with K+1 conductors. For example, if there are 120 blade-type windings 1, with 10 forming a winding cluster, M = 10, for a total of 12 winding clusters, or K = 12.

[0050] like Figure 1 As shown, the generator also includes: a rotor, which includes: an annular frame 6, an inner ring sleeve 7 is connected to the inner ring of the annular frame 6, an outer ring sleeve 8 is connected to the outer ring of the annular frame 6, and the stator is inserted between the outer ring sleeve 8 and the inner ring sleeve 7, and a number of magnetic strips 9 are inlaid on the opposite side walls of the inner ring sleeve 7 and the outer ring sleeve 8.

[0051] In this embodiment, the stator includes an annular I-shaped bracket 10 , on which an iron core casing 11 is sleeved. The iron core casing 11 is formed by stacking a plurality of silicon steel sheets.

[0052] The stator consists of dozens or even hundreds of blade-shaped windings 1 (coils), arranged in a ring on a circular support (i.e., an annular I-shaped support 10). Flanking these windings are strips of rare earth permanent magnets (magnetic strips 9). These strips are arranged vertically in a circular pattern, forming the rotor. Between the two rows of rare earth permanent magnet strips 9 lies the blade-shaped winding 1. Adjacent magnet strips have alternating polarity, with the strips on either side of the winding also having opposite polarity. This creates a very strong magnetic field within the winding, with the magnetic lines of force perpendicular to the winding. As the rare earth permanent magnet strips rotate, they perpendicularly intersect each winding in turn. The rapid change in magnetic flux efficiently induces an AC voltage. The AC output of each winding is full-wave rectified to produce a DC voltage U and current I.

[0053] In this embodiment, there is also a small gap between the vertically arranged (installed) magnetic strips 9 to accommodate changes in magnetic flux, that is, the magnetic field is strongest in the middle of the magnetic strips 9 and becomes weaker on both sides; when the rotor rotates, the magnetic strips 9 cut through both sides of the blade-type winding 1, and the winding encounters a change in magnetic flux, thereby inducing an electromotive force (voltage); the polarity of adjacent magnetic strips alternates, and the winding induces an alternating electromotive force, that is, alternating current.

[0054] In this embodiment, if the radius of the I-shaped bracket 10 is 0.65 meters, the circumference is 4 meters. The coil of a blade-type winding 1 is 2 cm wide, plus the total width of other parts is 3 cm (such as the fixing bolt). There can be about 120 blade-type coils (the number of blade-type windings 1 is not fixed, this is just an example) stacked (closely arranged, the space occupied is 3.6 meters); each blade-type winding 1 can be an iron core winding or an air-core winding; generally, an iron core winding is used to increase the induced voltage and power density. The coil part of the blade-type winding 1 is 2 cm wide and 10 cm long, and the magnetic flux cross-sectional area is approximately 20 square centimeters.

[0055] Similarly, 120 magnetic strips 9 can be deployed vertically (2 cm wide, with slots on both sides to secure them, for a total width of 3 cm, and a 2-4 mm gap between each strip). Adjacent strips 9 have alternating polarity, and the strips 9 at the same position across the winding have opposite polarity. This creates a strong magnetic field through the blade-shaped winding 1. If the blade-shaped winding 1 uses an iron core, the magnetic lines of force are concentrated within the coil with the iron core, inducing a higher voltage. However, an air-core blade-shaped winding 1 lacks concentrated magnetic lines of force, resulting in a lower induced electromotive force. In other words, an iron core provides higher power generation efficiency and power density.

[0056] In a 4-meter circumference with 120 blade-type windings 1, there is a 2-4 mm gap between the blade-type windings 1 and the magnetic strips 9 to dissipate heat. Furthermore, the gaps between the magnetic strips increase the magnetic flux variation of the blade-type windings 1 as the rotor (the circular ring formed by the magnetic strips) rotates. For a given magnetic flux variation, shortening the time it takes to change (elapse) increases the induced voltage, thereby increasing power output, given the same number of winding turns n. This is because the induced voltage e = -n(dΦ) / (dt) = -nΔΦ / Δt. A smaller Δt results in a larger induced electromotive force.

[0057] The circular ring bracket of the blade-type winding 1 is non-metallic. Because it is a stator, there can be more lower support rods.

[0058] The I-beam bracket 10 is shaped like an I-beam. Its tall, thin form allows the inner and outer rings of magnetic strips to be kept as close together as possible, creating a strong magnetic field. The gap between the I-beams is used to drive airflow and dissipate heat as the magnetic strips rotate. The internal temperature rise of the generator must not exceed 150°C, keeping it as far away from the Curie temperature of the magnets as possible to avoid weakening or even loss of magnetism, which could lead to reduced power generation efficiency or even failure.

[0059] When a generator is exposed to high wind speeds, the voltage induced in the windings is high, the generator output power is high, and the windings heat up. When exposed to high wind speeds for extended periods, heat dissipation must be considered to ensure the safety of electronic components. More importantly, the internal temperature of the generator must not approach the Curie temperature of the magnets. During the summer, when the sun is directly overhead and the wind is strong for extended periods, controlling the internal temperature of the generator is crucial.

[0060] A larger internal space in the generator allows for better surface heat dissipation, making it easier to control temperature rise. Leaving as much space as possible between each winding and each magnetic strip 9 facilitates heat dissipation and increases the rate of magnetic flux change. The blank space in the center of the I-beam support 10 of the blade-shaped winding 1 also facilitates heat dissipation.

[0061] Since the generator generates heat internally, increasing heat dissipation through various means will help the generator to operate more stably, efficiently and for a long time.

[0062] Example 2

[0063] Figure 5 This is a block diagram of the layout of a high-efficiency DC breeze power generation system provided by one embodiment of the present utility model. Figure 5 As shown, this embodiment provides a high-efficiency DC breeze power generation system, the system comprising:

[0064] A tower, with vertical blades installed on the top of the tower;

[0065] The above-mentioned high-efficiency DC breeze generator is installed on a pole tower, and the vertical blades are connected to the rotor of the high-efficiency DC breeze generator so that the rotor of the high-efficiency DC breeze generator is driven to rotate by the rotation of the vertical blades.

[0066] In this embodiment, the high-efficiency DC breeze power generation system uses vertical fan blades, which can achieve all-weather, 360-degree wind reception, and can effectively receive wind even when the wind direction changes frequently. Compared with traditional wind turbines, the vertical axis generator can be started at a wind speed of 1 meter / second and generate full load power at 4 meters / second; it has the advantages of no noise, no pollution, low operating cost, low construction difficulty, small footprint, wide application field, good industrial integration, low investment cost, and high power generation efficiency.

[0067] As a further optimization of this embodiment, Figure 6 The system further includes: a DC converter, a battery and an inverter. The DC output end of the high-efficiency DC breeze generator is electrically connected to the input end of the DC converter, and the output end of the DC converter is electrically connected to the charging end of the battery and the input end of the inverter; wherein, a diode is connected in series to the output end of the DC converter, and the charging end of the battery and the input end of the inverter are connected to the negative electrode of the diode.

[0068] In this embodiment, K clusters are connected in parallel to generate DC power with a voltage of M*V and a current of K*I. This power is then fed to a DC / DC converter, which converts the DC voltage, which varies widely (different wind speeds result in different induced voltages), into a voltage sufficient for floating battery charging. This power is then fed to an inverter, converting the DC power into AC power with the same frequency and phase as the grid. When there is little wind and the DC converter has almost no output, the battery powers the inverter, which in turn powers the grid. Therefore, regardless of wind speed fluctuations, the inverter can output stable power to the grid, and even in calm conditions, the battery provides stable power. Output only ceases when the battery capacity reaches a minimum during prolonged periods of no wind. Consequently, the DC generator achieves efficient, long-term, stable output, providing high-quality power to the grid.

[0069] As a further optimization of this embodiment, the system further includes: an intelligent controller, a switch controller, a generator power measuring device, a wind speed measuring device, and an electricity measuring device; wherein the intelligent controller may be a PLC (Programmable Logic Controller), the switch controller may be a single-chip microcomputer, the generator power measuring device may be a power meter, the wind speed measuring device may be an anemometer, and the electricity measuring device may be an electricity meter.

[0070] The switch controller is in communication with the intelligent controller, and is used to control the closing or opening of the switch 3 of the high-efficiency DC breeze generator;

[0071] The generator power measuring device is communicatively connected to the intelligent controller, and the generator power measuring device is used to detect the real-time power of the high-efficiency DC breeze generator and upload the detected real-time power of the high-efficiency DC breeze generator to the intelligent controller;

[0072] The wind speed measuring device is in communication with the intelligent controller, and is used to detect the real-time wind speed of the external environment and upload the detected real-time wind speed of the external environment to the intelligent controller;

[0073] The power measurement device is in communication connection with the intelligent controller, and the power measurement device is used to measure the real-time power of the battery and upload the detected real-time power of the battery to the intelligent controller.

[0074] In this embodiment, a switch controller controls the connection of the positive terminal of a particular cluster to the load (DC converter) based on wind speed. When wind speed is very low, for example, below 1 m / s, no winding clusters (hereinafter referred to as clusters) are connected. When wind speed increases to a certain level, for example, 1.5 m / s, one cluster is connected to the load, and the power output is only 1 / K of the generator's rated power (P), or P / K. When wind speed increases even higher, for example, 2 m / s, the positive terminal of a second cluster is connected, and the generator output is 2P / K. As wind speed increases, more clusters are connected sequentially until the rated power (P) is reached. When a decrease in generator output power is detected, the positive terminal of a cluster is disconnected. During normal operation, wind speed and generator output power are continuously measured. If the average generator output power decreases within a certain period and the wind speed decreases, a cluster is disconnected. Conversely, as wind speed and output power increase, an additional cluster is connected to the load. When connecting and disconnecting clusters, the principle of equal spacing of the positions of the blade-type windings 1 on the ring is generally followed (this principle is also followed when K windings are separated to form a cluster). That is, the windings connected to the load are distributed as evenly as possible in the physical position of the ring. In this way, the magnetic resistance is evenly distributed on the ring, and no unbalanced resistance is generated on the fan system.

[0075] At low wind speeds, a small number of clusters are connected, minimizing magnetic resistance and ensuring easy or even continuous rotation of the vertical blades. However, if too many clusters are connected, magnetic resistance and inertia are high, preventing the blades from rotating and effectively preventing power generation. When wind speeds are less than 1 m / s, no clusters are connected, effectively idling the generator. The generator has no additional magnetic resistance, and the wind can propel the blades. When wind speeds exceed 1 m / s (for example, 1.5 m / s), a cluster is connected. As wind speeds increase, for example, to 2 m / s, another cluster is connected. As wind speeds continue to rise, the number of connected clusters increases until all clusters are connected. As wind speeds decrease, a cluster is disconnected until all clusters are disconnected. This dynamic on-off control of the DC power output by the clusters ensures relatively stable rotation of the blade system. Specifically, greater thrust leads to more connected clusters. More connected clusters also increase magnetic resistance, preventing the blades from rotating faster. This balances wind thrust and magnetic resistance, achieving efficient power generation and maintaining a relatively stable blade speed. Therefore, the blade system rotates relatively stably most of the time. The stronger the wind, the more clusters are connected, the greater the magnetic resistance of the generator will be, the more work the wind energy does to push the blades to rotate, and the more wind energy is converted into electrical energy output.

[0076] The cluster output is connected to the load, which is the DC / DC converter. The DC converter converts the unstable DC power U1 output by the wind power generation into a relatively stable DC voltage U2 through the switching power supply. U2 is used for floating charge of the battery and serves as the input of the inverter; U2 is the output of the cluster switch controller connected to the floating charge contact through a unidirectional switch (high-power and high-current diode).

[0077] The inverter converts the floating charge DC voltage into AC power with the same frequency and phase as the power grid, outputs it to the power grid, and provides electricity for users.

[0078] Secondly, the induced electromotive force at low wind speed is relatively low, and the winding becomes DC after full-wave rectification. The DC voltages of multiple windings are superimposed to obtain a higher DC voltage for floating charging of the battery.

[0079] When wind speed is high, the generator output float charges the battery and simultaneously supplies power to the inverter. When wind speed is low and the generator output is insufficient, the battery and generator output simultaneously supply power to the inverter. When wind speed is completely calm, the generator outputs no DC voltage, and the battery supplies power to the inverter. The unidirectional diode prevents the battery from supplying current to the generator, and only the battery provides power at this time. At all times, as long as the battery has a charge, the inverter can provide continuous and stable power of the same frequency and phase to the grid. The inverter's operating state is controlled by an intelligent control device. When wind power is sufficient and the battery capacity is high, the inverter operates at full load, delivering maximum power to the grid. When wind power is insufficient and the battery capacity is low, the intelligent control device reduces the inverter load, providing lower power to the grid. As long as the battery capacity does not drop below the minimum tolerance, the inverter will continue to output continuous and stable power of the same frequency and phase, although the output power may fluctuate.

[0080] The battery capacity is configured to select the appropriate capacity according to the wind speed changes. For example, when the wind speed varies within 1-20m / s, the battery capacity range is 20-80%, which ensures continuous and stable power supply to the grid while keeping the cost acceptable.

[0081] In this embodiment, the high-efficiency DC breeze generator has an output cable, which is a wiring harness 5. The DC voltage output by each cluster is the result of rectified DC power from each winding, then added in series to produce a higher DC voltage. Each cluster outputs a positive pole, resulting in K clusters with K wires. Inside the generator, all negative poles are connected together. Negative poles carry high currents and require thicker wires. Therefore, wiring harness 5 consists of K positive pole wires and one thicker negative pole wire, extending from the generator to the switch controller.

[0082] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A high-efficiency DC breeze generator, characterized in that: The generator comprises: A stator, the stator being annular in structure, the stator being provided with a plurality of winding clusters, each winding cluster having at least one set of blade-type windings (1); A plurality of full-wave rectifiers (2), the number of the plurality of full-wave rectifiers (2) corresponds one-to-one to the number of blade-type windings (1), and the two ends of each set of blade-type windings (1) are electrically connected to the two input ends of a corresponding full-wave rectifier (2); In the same winding cluster, the output sides of the full-wave rectifier (2) connected to at least one group of blade-type windings (1) are connected in series to form a DC output end, and the DC output ends of several winding clusters are connected in parallel.

2. The high-efficiency DC breeze generator according to claim 1, characterized in that: A switching switch (3) is connected in series between the positive pole of the DC output end of each winding cluster and the positive common end of the DC output end of the winding cluster in parallel, or a switching switch (3) is connected in series between the negative pole of the DC output end of each winding cluster and the negative common end of the DC output end of the winding cluster in parallel.

3. The high-efficiency DC breeze generator according to claim 1, characterized in that: The generator further comprises: a casing (4), the casing (4) being a disk, and the upper surface and the lower surface of the disk being conical, and the stator and the plurality of full-wave rectifiers (2) being disposed in the casing (4).

4. The high-efficiency DC breeze generator according to claim 1, characterized in that: The generator further comprises: a rotor, the rotor comprising: an annular frame (6), an inner ring of the annular frame (6) being connected to an inner ring sleeve (7), an outer ring of the annular frame (6) being connected to an outer ring sleeve (8), the stator being inserted between the outer ring sleeve (8) and the inner ring sleeve (7), and a plurality of magnetic strips (9) being inlaid on the side walls opposite to the inner ring sleeve (7) and the outer ring sleeve (8).

5. The high-efficiency DC breeze generator according to claim 4, characterized in that: The stator comprises an annular I-shaped bracket (10), an iron core sleeve (11) being sleeved on the I-shaped bracket (10), and the iron core sleeve (11) being formed by stacking a plurality of silicon steel sheets.

6. A high-efficiency DC breeze power generation system, characterized in that: The system comprises: A tower, with vertical blades installed on the top of the tower; The high-efficiency DC breeze generator according to any one of claims 1 to 5, wherein the high-efficiency DC breeze generator is mounted on a pole tower, and the vertical fan blades are connected to the rotor of the high-efficiency DC breeze generator so as to drive the rotor of the high-efficiency DC breeze generator to rotate through the rotation of the vertical fan blades.

7. The high-efficiency DC breeze power generation system according to claim 6, characterized in that: The system also includes: a DC converter, a battery and an inverter. The DC output end of the high-efficiency DC breeze generator is electrically connected to the input end of the DC converter, and the output end of the DC converter is electrically connected to the charging end of the battery and the input end of the inverter.

8. The high-efficiency DC breeze power generation system according to claim 7, characterized in that: A diode is connected in series to the output end of the DC converter, and the charging end of the battery and the input end of the inverter are connected to the negative electrode of the diode.

9. The high-efficiency DC breeze power generation system according to claim 7, characterized in that: The system further comprises: Intelligent controller; A switch controller, which is in communication with the intelligent controller, and is used to control the closing or opening of a switch (3) of the high-efficiency DC breeze generator; a generator power measuring device, communicatively connected to the intelligent controller, wherein the generator power measuring device is used to detect the real-time power of the high-efficiency DC breeze generator and upload the detected real-time power of the high-efficiency DC breeze generator to the intelligent controller; A wind speed measuring device is communicatively connected to the intelligent controller, and is used to detect the real-time wind speed of the external environment and upload the detected real-time wind speed of the external environment to the intelligent controller; The power measurement device is connected to the intelligent controller for communication. The power measurement device is used to measure the real-time power of the battery and upload the detected real-time power of the battery to the intelligent controller.

Images