WO2018044115A1

WO2018044115A1 - Smart pole using new renewable energy

Info

Publication number: WO2018044115A1
Application number: PCT/KR2017/009593
Authority: WO
Inventors: 송장훈; 유경성; 지인호
Original assignee: (주)정광기업
Priority date: 2016-09-01
Filing date: 2017-09-01
Publication date: 2018-03-08
Also published as: KR101762588B1

Abstract

The present invention relates to a smart pole, using new renewable energy, for supplying electric power to an electric facility installed on a pole, such as a streetlight, a communication base station, or a surveillance camera for a guard post, by using sunlight and wind power. The smart pole is configured such that, when a signal of a wind speed sensing sensor indicates a wind speed lower than a predetermined wind speed, a spindle gear moves forward to connect a motor to a blade shaft and thus rotation is made by low-speed wind and a driving force of the motor, thereby generating predetermined electric power; and, when wind speed sensed by the wind speed sensing sensor is higher than a predetermined wind speed, the spindle gear moves backward so as to disconnect the motor and the blade shaft.

Description

Smart poles using renewable energy

The present invention relates to a smart pole using renewable energy for stably supplying power to a facility such as a street lamp or a communication base station installed on a pole using a solar light and a wind power, or a surveillance camera for a border post. In order to enable effective wind power generation even at low wind speed, the motor can be connected to or disconnected from the blade rotation shaft by the signal of the wind speed sensor. As the blade is moved by the motor and rotated by the low speed wind and the driving force of the motor to produce a constant electric power, and when the wind speed is above a certain speed, the spindle gear automatically retracts to connect the motor and the blade shaft. It can be released.

In order to avoid the depletion of fossil energy and the potential danger of nuclear energy, people are converting the power of solar and wind that can be continuously generated without pollution into electricity. In addition, it is called renewable energy, and it is characterized by infinite supply of energy existing in nature.

This electricity is stored in the battery and used when needed. Street lamps are used to light up the night.

Solar panels receive sunlight and convert solar energy into electrical energy, and wind turbines convert wind into electrical energy and accumulate in storage batteries. In this case, mainly used storage batteries are DC12V or DC24V lead-acid batteries.

On the other hand, in Korea, if there is a difference in power generation voltage according to wind power using a storage battery can not be used efficiently. For example, Korea's average annual wind speed is 3 ~ 4m / sec, but it does not exceed 3m / sec when the southeast monsoon or southwest monsoon blows, except when the typhoon passes from spring to summer and autumn. However, when the northwest monsoon winds during the winter season, the average is 7-8m / sec, and in many cases it reaches 12m / sec. Since the generated voltage is four times different from when the wind is blowing at 3m / sec and when the wind is blowing at 12m / sec, the whole cannot be stored in the battery. Therefore, when the wind power generator focuses on the low wind speed, in order to protect the battery at the high wind speed, the wind turbine is not connected to the battery by blocking electricity generated from the wind power generator by the controller. In addition, wind turbines focused on high wind speeds are not stored in batteries because electricity generated at low wind speeds is low.

As described above, the conventional wind power generator does not use over a wide range of wind speeds and generates power only in a very narrow range of wind speeds, thereby storing them in a storage battery, which is inefficient and has a problem that cannot withstand high wind speeds.

Patent Literature 1 can be used in a wide range from low wind speed to high wind speed regardless of the wind strength, and the front surface of the hub is flat so that it can stably develop a constant voltage regardless of the change in the strength of the wind speed. The direction plate that catches the direction of wind blowing is combined with the vertical axis of the broadband wind turbine tilted and inclined. Hybrid that can be used in wide range of low speed or high speed by increasing the energy accumulation efficiency by stably developing a voltage of a certain width due to the change of the area receiving wind as the rotation is made to the point where the rotational force that the wind wants to rotate is matched. Broadband wind turbines for streetlights are disclosed.

Patent Document 2 discloses a small size of the wind power generator to reduce starting wind speed and rated wind speed so that it can be started in various directions and breezes, and combines a small wind power generator and a solar power system in parallel to form a hybrid power generation system. Likewise, if it is impossible to generate electricity by solar power, wind power is used, and when it is impossible to generate electricity by wind, such as on a clear day without wind, it uses solar resources to supply power to loads such as street lamps, communication base stations, and unmanned cameras by uninterrupted power. A hybrid power generation system using photovoltaic and wind power has been disclosed.

Patent Literature 3 discloses street lamps that produce driving power by self-power generation. The power generation method uses a combination of photovoltaic power generation and wind power generation, but does not affect the position of the sun. And a streetlight pole equipped with a hybrid power generation device to which a wind power generation means having a structure not affected by wind speed is disclosed.

Patent Document 4 describes a method for controlling such electric power when the electric power generated by using solar power generation by solar cell and wind power generation by windmill is used as the power of street light. There is disclosed a hybrid streetlight power control method that can maintain a stable hybrid system through the production of the required power through the control of overvoltage and overwind speed, and can reduce the use of power through the control of the power used.

On the other hand, in the actual operation of the hybrid power generation system incorporating the solar light and wind according to the prior art described above, power generation by wind power generation is impossible because the driving force for the rotor can rotate at a very low wind speed is not generated. Most of the time, there is a problem in that it depends on the solar light only, so that there is a problem of continuously supplying stable power to a device such as a street lamp, a communication base station, or a surveillance camera. It is necessary to improve the power generation by

[Preceding technical literature]

[Patent Documents]

(Patent Document 1) Korea Utility Model Model No. 20-0384140 (registered on May 03, 2005) Broadband wind power generator for hybrid street light

(Patent Document 2) Korean Registered Patent No. 10-0694485 (registered on March 07, 2007) Hybrid power generation system using solar and wind power

(Patent Document 3) Korean Patent No. 10-0863235 (registered on October 27, 2008) Street lamp with hybrid power generation device

(Patent Document 4) Korean Patent Registration No. 10-1552099 (2015.09.04. Registration) Power control method of hybrid street light

The present invention has been made to solve the above problems, an object of the present invention in the power generation system using the solar light and wind power, even if the wind speed is low to give the driving force to the blade to the battery by the driving force of the motor and low wind speed By enabling the generation of power that can be charged, there is no obstacle in continuously supplying stable power to devices such as street lamps, communication base stations or surveillance cameras.

In order to achieve the above object, the present invention uses smart and renewable energy for supplying power to electric facilities such as street lamps or communication base stations installed on poles or surveillance cameras for guard stations using solar and wind power. If the signal of the polo and wind speed sensor is lower than the set wind speed, the motor is operated so that the blade is rotated by the low speed wind and the driving force of the motor to produce a constant power, and the wind speed detected by the wind speed sensor is higher than the set wind speed. The case provides a smart pole that uses renewable energy that is configured so that the motor is stopped and the blades rotate only with the wind.

In a preferred embodiment, by connecting the motor to the shaft of the blade by the advance of the spindle gear to rotate by the low-speed wind and the driving force of the motor to produce a constant power, if the wind speed detected by the wind speed sensor is more than the set wind speed Allow the spindle gear to retract and disconnect the motor from the blade shaft.

The present invention is able to generate power regardless of the wind speed in Korea, which has a climatic characteristic that the wind speed is not constant according to the season or time, and combined with the solar light to produce power to accumulate in the storage battery to connect the grid power It can be used to supply stable power 24 hours a day, seven days a week for street lamps, communication base stations, or border guard cameras in difficult areas.

1 is a front configuration diagram of a smart pole according to the present invention;

2 is a side configuration diagram of a smart pole according to the present invention;

3 is an enlarged view of the wind power generation unit,

FIG. 4 is a plan view illustrating a connection state between a blade, a shaft, and a driving motor of the wind power generator head shown in FIG. 3.

Hereinafter, with reference to the accompanying drawings, preferred embodiments that do not limit the present invention will be described in detail.

1 to 4 illustrate a configuration of a smart pole using renewable energy according to an embodiment of the present invention.

As shown, the smart pole according to the present embodiment is for supplying electric power such as a street lamp 10 installed on a pole 11 or a communication base station or a surveillance camera for border guard using solar light and wind power. When the signal of the wind speed sensor, not shown, is lower than the set wind speed, the motor 3 is connected to the shaft 5 of the blade 1 coupled to the generator 4 by the advance of the spindle gear 21. It is rotated by the low speed wind and the driving force of the motor 3 to produce a constant electric power. When the wind speed detected by the wind speed sensor is higher than the set wind speed, the spindle gear 21 retreats to retract the motor 3 and the blade ( It is configured to rotate only by the wind by releasing the connection with the shaft 5 of 1).

In the present embodiment, the spindle gear 22 is fixed to the blade 1 by the connecting plate 2, and the spindle gear 21 axially coupled to the motor 3 on the opposite side of the spindle gear 22. When the motor (3) is rotated to drive the sliding motion forward while being engaged to the spindle gear 22 to rotate the shaft (1) by rotating the blade (1) the generator (5) is driven to drive power It is supposed to be produced.

Forward and backward of the spindle gear 21 can be used in the same manner as in the starting motor of the vehicle, which is configured to advance the spindle gear by supplying electricity to the solenoid coil (not shown) simultaneously with the driving of the motor (3). In addition to this, in addition to the forward and backward movement can be made by a variety of mechanical and electrical mechanisms of course.

In the present invention, the motor (3) is connected to the shaft (5) connected to the blade (1) is configured to be connected and disconnected as necessary, if the wind speed is 0 ~ 2m / sec or less, because the wind power generation efficiency of the motor (3) It is not necessary to start and if the blade 1 is started from the wind speed 2m / sec to 5m / sec, and centrifugal force is generated, the power output from the generator 4 is higher than the power consumption of driving the motor 3. As the wind speed increases, power generation is possible at low wind speeds. If the wind speed is 5 m / sec or more, the blades can be rotated at a speed suitable for power generation only by the natural wind speed, thereby stopping the power supplied to the motor (3). At the same time, the spindle gear 21 is retracted to release the connection state between the motor 3 and the shaft 5.

In the present embodiment, the wind speed sensor may use a general small anemometer, the small anemometer is a method of measuring the output of the generator in terms of the wind speed by rotating the cup-shaped wings to drive the generator, in addition to the hot wire anemometer Can also be used.

In the present embodiment, the motor 3, the generator 4 and the pinion gears 21 and 22 are accommodated inside the head cover 6, and the head cover 6 has a rotating sheet at an upper end of the support 11. It is possible to rotate according to the wind direction 7), the head cover 6 is stably supported by the head support (8) erected in an oblique direction, the rotation sheet 70 on the support (11) The rotational movement is performed within the range of 60 degrees, and the automatic adjustment of the direction angle according to the wind direction is made, and the blow operation is performed in the event of a gust of wind, such as a typhoon, to prevent damage to the blade.

On the other hand, in the present embodiment, the street lamp 10 is using a laser diode as a light source to maximize the diffusion of light at the same time to increase the energy efficiency instead of conventional incandescent lamp (incandescent lamp or mercury lamp), this laser diode Using a combination of low-cost red, green and blue monochromatic wavelengths irradiate the light as far as possible, but by irradiating a laser beam to form a laser area on the subject by the haze, cloudiness, yellow dust, haze caused by air pollution It is desirable to be able to identify subjects in spite of various climate changes, and thus it is possible to investigate even curved or concealed areas, and to use energy-efficient by using low-cost laser diodes and reducing power consumption compared to conventional LED street lights. Can be maximized.

On the other hand, the storage battery is embedded in the distribution storage box 12 of the bottom of the support (11), which is composed of an independent energy storage system (ENERGY STORAGE SYSTEM) is stable to the street light, communication repeater or surveillance camera installed in the support (11) It will supply power.

In the present embodiment, the blade 1, the head cover 6, the support 11, the power distribution storage box 12, etc. are applied to the 'applicable for the renewable energy generator' of the Patent No. 10-1180709 of the applicant. By using a thermosetting polydisclopentadiene (PDCPD) impregnated with a nano-material containing carbon nanotubes as disclosed material can improve the strength and durability compared to conventional metals or FRP, in particular the interior of the pillar (11) The waste synthetic resin can be recycled and filled to reduce the manufacturing cost and to recycle the material at the end of its service life.

As described above, the smart pole according to the present embodiment combines solar and wind power to supply power required for a street lamp, a wireless base station or a surveillance camera, and connects a motor to the blade rotating shaft with a spindle gear according to a signal of a wind speed sensor. When the wind speed is slower than the set speed, the spindle gear is moved while the motor is running, so that the blade is started by the motor and rotated by the low speed wind and the driving force of the motor to produce a constant power. If the wind speed is above a certain speed, the spindle gear is automatically retracted to disconnect the motor and the blade shaft, enabling effective wind power generation even at low wind speeds. In underdeveloped areas There is an advantage that can effectively operate the equipment.

[Description of the code]

1: blade

2: connecting plate

3: motor

4: generator

5: axis

6: head cover

7: rotating sheet

8: head support

9: solar panel

10: street light

11 pole

12: power distribution storage box

21: spindle gear (sliding)

22: spindle gear (fixed)

Claims

Smart polo using renewable energy for powering electrical facilities such as street lamps installed on poles or communication base stations or surveillance cameras for border guards using solar and wind power;

If the wind speed sensor's signal is lower than the set wind speed, the motor is operated so that the blade is rotated by the low speed wind and the driving force of the motor to produce a constant power in the generator.The wind speed detected by the wind speed sensor is higher than the set wind speed. In this case, the motor is stopped and the blade is rotated only by the wind, but if the wind speed sensor signal is lower than the set wind speed, the motor is connected to the shaft of the blade by the forward of the spindle gear to rotate by the low speed wind and the driving force of the motor. To allow the generator to generate power, and when the wind speed detected by the wind speed sensor is higher than the set wind speed, the spindle gear retracts to disconnect the motor and the blade shaft, and the motor, generator and pinion gear are inside the head cover. Housed in the head cover, Rotated in accordance with the wind direction by the exhibition site, the head cover is supported by a head support erected in an oblique direction, the rotation sheet uses a renewable energy, characterized in that the rotation operation is made within 60 degrees on the prop Smart pole.