CN201013537Y - Landscape windmill with complementary scenery - Google Patents

Abstract

The utility model belongs to the technical field of renewable energy utilization, and in particular relates to an innovative landscape facility with wind energy and solar energy as the driving force. The technical solution comprises a wind turbine (1) and a solar power generation device, characterized in that a motor (3) is connected to the wind turbine (1) through a connecting bearing (2), and the motor (3) passes through an AC/DC bidirectional converter ( 6) It is connected with the positive and negative poles of a storage battery (12), and a speed sensor (13) is set between the wind turbine (1) and the motor (3), and the solar power generation device connects with the storage battery (12) through a DC/DC converter. ) are connected to the positive and negative poles, and there is also a controller connected to the AC/DC bidirectional converter (6). This windmill is novel and beautiful, pollution-free, with low daily operating costs, no need to take power from the outside, and small annual maintenance. It can carry functions such as public welfare publicity, enterprise and product advertisements, and is suitable for use in parks, villages, and on both sides of roads.

Description

Landscape windmill with complementary scenery

technical field

The utility model belongs to the technical field of renewable energy utilization, and in particular relates to an innovative landscape facility with wind energy and solar energy as the driving force.

Background technique

Driven by my country's economic development, all kinds of man-made landscape facilities have sprung up in street parks, villages, and on both sides of roads, lighting up our lives. These facilities can only be viewed during the day, or can work at night with the help of winding and projected lights, which consume a lot of power at night and have a single function.

In my country's vast northern region, wind energy and solar energy resources are abundant, and the two are complementary throughout the year. Wind-solar hybrid power generation technology has been applied in Tibet and Inner Mongolia to solve the power supply problem of remote herdsmen. It combines the advantages of wind power generation and solar photovoltaic power generation technology, and effectively improves the comprehensive utilization efficiency of wind, light resources and equipment. At present, this technology is mainly used in wind-solar hybrid power generation systems. The windmills in the system only work in the power generation state and stop rotating when the wind speed is low. The appearance and process are simple and have no landscape effect.

Utility model content

The purpose of the utility model is to provide a scenery windmill with complementary scenery.

The technology adopted in order to reach the purpose of the present utility model comprises wind turbine 1 and solar power generation device, it is characterized in that, a motor 3 is connected with wind turbine 1 by connecting bearing 2, and this motor 3 passes through AC/DC bidirectional converter 6 and The positive and negative poles of a storage battery 12 are connected, and a rotational speed sensor 13 is set between the wind turbine 1 and the motor 3. The solar power generation device is connected to the positive and negative poles of the storage battery 12 through a DC/DC converter, and is bidirectionally connected with AC/DC A controller 23 is also connected to the converter 6 .

In the above windmill with wind-solar complementary landscape, the AC/DC bidirectional converter 6 includes an IGBT bridge 18 controlled by a controller 23, a switch K1, and a switch K2. The IGBT bridge 18 is connected to the battery 12 through the switch K1 and the switch K2, and the input terminal Connected to motor 3.

In the above windmill with wind-solar complementary landscape, the controller 23 includes a digital signal processor whose signal source is the signal collected by the current transformer CT1 , voltage transformer PT1 , PT2 and the speed sensor 13 .

In the above windmill with wind-solar hybrid landscape, an IGBT drive is provided between the controller 23 and the IGBT bridge 18 .

In the above windmill with wind-solar complementary landscape, a light 16 is provided on the wind turbine 1, and a light controller 14 is provided between the AC/DC bidirectional converter 6 and the light 16, and the light controller 14 executes the controller shown in Fig. 2 23 gives the control signal.

In the above windmill with wind-solar complementary landscape, the tower 15 of the wind turbine 1 is a variable cross-section body with a small top and a large bottom, which does not need to be pulled around, which makes the windmill novel and beautiful as a whole.

In the windmill with wind-solar complementary landscape mentioned above, the lights 16 set on the wind turbine 1 are LED light-emitting diodes set on the blades and towers of the wind turbine 1. The specific lighting configuration needs to be designed according to the application conditions on site. Schematic description.

In the above windmill with wind-solar hybrid landscape, the motor 3 is a motor that can alternately work in two states of generator and motor.

The windmill with wind-solar complementary landscape is novel and beautiful, has no harmful substance discharge, no pollution, flexibility, high efficiency, and stable electric energy output. The daily operating cost is low, there is no need to take power from the outside, and the annual maintenance is small. It can carry functions such as public welfare publicity, corporate and product advertisements, and is suitable for use in parks, villages, and on both sides of roads.

The utility model improves the traditional operation mode in which the wind turbine is only used for power generation in the wind-solar complementary power generation system, so that the rotation direction and speed of the wind wheel can be accurately controlled, and the landscape effect of the windmill is ideally realized. At night, through the cooperation of the rotation of the windmill and the light, the windmill is more colorful.

Description of drawings

Fig. 1 is the structure schematic diagram of the utility model wind-solar complementary landscape windmill;

Fig. 2 is a control circuit diagram of the utility model wind-solar complementary landscape windmill.

specific implementation plan

As shown in Figure 1, the wind-solar complementary landscape windmill includes a wind power generation/drive part, a solar power generation part, and an energy storage and conversion part.

The wind power generation/drive part is composed of a wind turbine 1, a connecting bearing 2, a rotational speed sensor 13, a motor 3, and a connecting wire 4. 15 is the tower of the wind turbine 1 , and 16 is the light provided on the blades of the wind turbine 1 and the tower 15 .

The solar power generation part is composed of photovoltaic panels 9 and connecting wires 10 .

The energy storage and conversion part is composed of AC/DC bidirectional converter 6 , connecting wire 7 , DC/DC converter 11 , connecting wire 8 and storage battery 12 .

The tower 15 of the wind turbine 1 adopts a non-traction design, that is, the wind turbine is carried by a tower with variable cross-section, and there is no need for pulling and fixing around it.

Accompanying drawing 2 has shown the detailed structure of AC/DC bidirectional converter 6. The IGBT bridge 18 is connected to the motor 3 through the input terminal 17 and connected to the battery 12 through the switches K1 and K2. The control signals of the IGBT bridge 18 and the switches K1 and K2 are given by the controller 23, and the signals used to control the IGBT bridge 18 are amplified and conditioned by the IGBT driver 24, and converted into control signals that can directly drive the IGBT. The electrical signals collected by CT1 , PT1 , and PT2 and the signal collected by the rotational speed sensor 13 form the control input 22 , which provides a basis for the closed-loop control of the controller 23 . The core part of the controller adopts a high-speed digital signal processor with a computing capacity exceeding 100MIPS, and the IGBT uses a high-speed device with a switching frequency higher than 10kHZ, which enables the IGBT bridge to work efficiently and flexibly, thus ensuring the stable output of electric energy.

The IGBT bridge in the embodiment shown in FIG. 2 uses a single-phase motor. If a three-phase motor is used, only the existing four bridge arms need to be increased to six bridge arms.

The motor 3 adopts a motor that can work in the state of generator and motor, and the switching between the two states is realized through the control device. When the motor 3 is working as a generator, the switch K1 is closed and K2 is disconnected in Figure 2, and the alternating current energy generated by the motor 3 is charged to the battery 12 through the IGBT bridge 18 and K1; when the motor 3 is working as a motor, K1 is disconnected. open, K2 is closed, and the storage battery 12 supplies AC power with a set frequency to the motor 3 through K2 and the IGBT bridge 18 . The controller 23 controls the opening and closing of the switches K1 and K2 according to the control quantity input 22 and generates a control signal, and controls the IGBT bridge 18 through the IGBT drive 24 to realize the stability of the charging voltage in the generator state and the output of AC power with a set frequency in the motor state .

The wind power generation/drive part stores or takes energy from the energy storage and conversion part, and the solar power generation part outputs DC power to the energy storage and conversion part under the condition of sunlight.

14 is light controller, and it is located between AC/DC two-way converter 6 and lamp 16, and it controls night light to flicker.

The landscape consists of the turning of the wind turbines and the twinkling of lights on the surface of the wind turbines at night.

The utility model realizes the self-use of landscape facilities for electricity by using the wind-solar complementary power supply technology, realizes that the motor can alternately work in two states of the generator and the motor through the power electronic control technology, and the wind turbine can drive the motor to generate electricity, and can also be used in the motor Driven to rotate at the set speed. In addition, through the selection of beautiful and brightly colored wind turbines, variable-section towers and the addition of LED lighting equipment, ideal all-weather landscape effects have been achieved.

Working process of wind turbine:

1. When the wind speed is higher than the cut-in wind speed, the wind turbine 1 drives the motor 3 to generate electricity, and the generated electric energy passes through the AC/DC bidirectional converter 6 to store the stable DC electric energy in the battery 12 .

2. When the wind speed is lower than the cut-in wind speed but higher than the set speed (the speed required for the landscape), the motor 3 stops working.

3. When the wind speed is lower than the cut-in set speed, the battery 12 supplies power to the motor 3 through the AC/DC bidirectional converter 6, and the motor 3 runs in the generator state, driving the wind turbine 1 to work at the set speed.

Photovoltaic cell working process:

When there is light during the day, the photovoltaic cell panel 9 charges the storage battery through the DC/DC converter 11 .

Landscape effect description:

During the day, when the wind speed is higher than the set wind speed, the wind turbine rotates freely; when the wind speed is lower than the set wind speed, the rotation speed is controlled by the AC/DC bidirectional converter 6, at this time K1 is disconnected and K2 is closed in the accompanying drawing 2 , the storage battery 12 supplies power to the motor 3 through the IGBT bridge 18, the speed of the motor 3 is given by the controller 23 according to the control input 22, and is converted into a control signal that can directly drive the IGBT bridge 18 through the IGBT drive 11, and the IGBT bridge 18 is in the control signal Under the action of the motor 3, the alternating current energy of the frequency corresponding to the required rotational speed is output to show the landscape effect.

At night, the lights are turned on, and the light controller controls the LEDs on the tower and blades of the wind turbine 1 to emit light and flash. The work of the wind turbines is the same as during the day.

In addition, if the site permits, multiple wind turbines can be used to work together to enhance the landscape effect.

During the working process of the wind turbine, the rotational speed is acquired by 13 rotational speed sensors, which provide a basis for control.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model without limitation. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the utility model can be Modifications or equivalent replacements of the technical solutions of the new utility model without departing from the spirit and scope of the technical solutions of the utility model shall be covered by the claims of the utility model.

Claims (8)

1. a wind light mutual complementing view windmill comprises wind turbine (1) and device of solar generating, it is characterized in that, be connected to a motor (3) by connection bearing (2) and wind turbine (1), this motor (3) is connected with the both positive and negative polarity of a storage battery (12) through AC/DC reversible transducer (6), between wind turbine (1) and motor (3), be provided with a speed probe (13), device of solar generating is connected by the both positive and negative polarity of DC/DC transducer with storage battery (12), a controller (23) in addition that links to each other with AC/DC reversible transducer (6).

2. wind light mutual complementing view windmill according to claim 1, it is characterized in that, AC/DC reversible transducer (6) comprises by the IGBT bridge (18) of controller (23) control and K switch 1, K switch 2, IGBT bridge (18) links to each other with storage battery (12) with K switch 2 by K switch 1, links to each other with motor (3) by its input terminal.

3. wind light mutual complementing view windmill according to claim 2 is characterized in that described controller (23) comprises DSP digital signal processor.

4. according to claim 2 or 3 described wind light mutual complementing view windmills, it is characterized in that, between controller (23) and IGBT bridge (18), be provided with IGBT and drive (24).

5. according to claim 1 or 2 or 3 described wind light mutual complementing view windmills, it is characterized in that, on wind turbine 1, be provided with lamp (16), between AC/DC reversible transducer (6) and lamp (16), be provided with lamp dimmer (14).

6. according to claim 1 or 2 or 3 described wind light mutual complementing view windmills, it is characterized in that the pylon (15) of wind turbine (1) is up-small and down-big variable cross section body.

7. wind light mutual complementing view windmill according to claim 5 is characterized in that, going up the lamp (16) that is provided with at wind turbine (1) is to be located at the blade of wind turbine (1) and the LED light emitting diode on the pylon.

8. according to claim 1 or 2 or 3 described wind light mutual complementing view windmills, it is characterized in that, motor (3) but be the motor of alternation under generator and motor two states.

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