WO2013024515A1

WO2013024515A1 - Hybrid generation-type streetlamp

Info

Publication number: WO2013024515A1
Application number: PCT/JP2011/068447
Authority: WO
Inventors: 弘之稲川; 哲茂堂山
Original assignee: 大島工業株式会社
Priority date: 2011-08-12
Filing date: 2011-08-12
Publication date: 2013-02-21

Abstract

The purposed of the present invention is to provide a hybrid generation-type streetlamp in which a highly durable streetlamp is provided and electricity can be stably generated by wind power, and which also offers efficient utilization of electric power. This purpose is achieved by a hybrid generation-type streetlamp comprising the following features A through I. A: a wind power generation part having a vertical-axis wind turbine capable of generating electricity; B: a solar power generation part having a solar panel capable of generating electricity; C: an electricity storage part provided with two or more batteries for storing the electrical power generated by A or B; D: an illumination part turned on by the electrical power stored in C; E: a controller for controlling the operation of A through D; F: a support part to which A through E are attached; G: the vertical-axis wind turbine being configured from two mutually opposing longitudinal vanes, and inward-inclined parts inclined toward the axial direction being formed at top and bottom end parts of the longitudinal vanes; H: the vertical-axis wind turbine having a braking part for decelerating or stopping the rotation of the wind turbine; and I: the solar panel being positioned below the vertical-axis wind turbine, and the top end of the solar panel being inclined toward the support part.

Description

Hybrid power street lights

The present invention relates to a hybrid power generation street lamp having two types of power generation means, and more particularly, to a street light that stores electric power obtained by solar power generation and wind power generation and turns on lighting by the stored power.

Street lights have been proposed in the past that use the power obtained by solar power generation and wind power generation to turn on lighting.
These street lights do not require external power supply because they have an independent power generation capacity and also have the function of storing the generated electric power. Therefore, even at the time of a power failure due to a disaster or the like, there is no loss of the function of lighting the light as a street light, and further, there is an advantage that installation is easy because connection work with an external power supply is unnecessary.

In Patent Document 1, a wind power generation unit in which a generator is connected to a rotary shaft of a vertical axis wind turbine, a solar power generation unit having a solar panel, and power generated by the wind power generation unit and the solar power generation unit are stored. Storage means and illumination means for emitting light using electric power stored in the storage means, and the wind power generation means, the solar power generation means and the illumination means are held at a predetermined height from the ground by a support A streetlight apparatus using power generation by wind power and solar power, wherein the solar power panel is disposed so as to guide the wind that hit the solar power panel to the blades of the vertical wind turbine. A street lamp device using power generation by the

Patent document 1: JP-A-2003-042052

However, in Patent Document 1, a Savonius type or a cross flow type is exemplified as a vertical axis type wind turbine to be used. However, in the case of using such a wind turbine, there are the following problems. That is, these wind turbines have a problem that the rotation speed of the wind turbine changes due to changes in wind speed, and the output voltage constantly fluctuates. Furthermore, the strong wind such as a typhoon breaks or the rotation speed increases too much. There was a risk of destroying the entire wind turbine. In particular, the technology described in Patent Document 1 has a configuration in which a solar panel is disposed so as to guide the wind striking the solar panel to the wing of the wind turbine, and a strong wind blows from the direction in which the wind hits the solar panel. In this case, the wind power added to the wind turbine is extremely high, and the risk of destroying the wind turbine is high.

The street device described in Patent Document 1 has a problem that the power generation capacity by wind power is unstable by adopting a wind turbine and a configuration having such a problem, and there is a possibility of destruction by strong wind, and durability is poor. .

In addition, there is no disclosure about a control method for efficiently storing and using power generated by wind power or sunlight, and there is a problem in efficient use of power.

Therefore, an object of the present invention is to provide a hybrid power generation type street light that enables stable power generation by wind power and provides a street light with high durability and also uses power efficiently.

The above-mentioned subject of the present invention is achieved by the following composition.
1. Hybrid-powered streetlight with the following AI:
A Wind power generation unit having a vertical axis type wind turbine having a power generation function B Solar power generation unit having a solar panel having a power generation function C Storage of electricity provided with two or more batteries for storing electric power generated by A or B Part D Lighting part E which lights up with electric power stored in C Part E Control part that controls the operation of A to D F Column part to which A to E are attached G Two vertical lengths of the vertical wind turbine facing each other The upper and lower end portions of the vertically elongated wing form an inward inclined portion which inclines in the axial direction. The vertical axis wind turbine has a braking portion for decelerating or stopping the rotation of the wind turbine. I The solar panel is located below the vertical axis wind turbine, and the upper end of the solar panel is inclined toward the support column

2. The hybrid powered streetlight according to the above 1, wherein the control unit has at least the following functions:
(1) Selection of wind power generation unit and solar power generation unit (2) Selection of battery to be stored (3) Selection of battery to supply power to lighting unit (4) Control of lighting unit (5) Wind power generation unit and solar Measurement of voltage and current of photovoltaic unit and measurement of voltage and current of storage unit (6) AC / DC conversion (7) Control of braking unit

3. The hybrid power generation street lamp according to the above 1 or 2, wherein the control unit is configured to select lighting or extinguishing of the lighting unit based on the measurement value of the solar power generation unit.

4. The hybrid power generation town according to any one of the above 1 to 3, wherein the control unit is configured to select the braking unit to decelerate or stop the rotation of the wind turbine based on the measurement value of the wind power generation unit. Road light.

5. The support is composed of an upper support and a lower support, the wind power generation unit, the solar power generation unit and the lighting unit are attached to the upper support, and the storage unit and the control unit are accommodated inside the lower support. The hybrid power generation street lamp according to any one of the above 1 to 4, characterized in that

According to the first aspect of the invention, by adopting the new shapes described in G and I for the vertical axis wind turbine, the wind turbine can obtain a constant rotation even in a weak wind environment. In addition, by providing the braking portion in the wind turbine, it is possible to control the number of rotations of the wind turbine even in a windy environment. Therefore, it is possible to provide stable power generation by wind power, and to provide a durable hybrid power generation street light that prevents destruction by strong wind and the like.

According to the invention described in the second aspect, since the control unit can centrally control the respective units, it is possible to provide a hybrid power generation street lamp which is also used for efficient use of power.

According to the invention described in the above 3, it is possible to measure the voltage and current of the solar power generation unit and grasp the sunshine condition from these measured values, so there is no need to provide an illuminance detector (bright and dark sensor). It is possible to accurately determine whether the lighting unit should be turned on or off.
In addition, it is general to use a light and dark sensor etc. or time control by timer to select the lighting / extinguishing of the street light, but by using the voltage and current of the solar power generation unit, it is possible to select these The cost and assembly time can be reduced. Furthermore, it is possible to flexibly cope with the sunrise / sunset time which changes depending on the season without requiring any setting, and it is possible to provide a hybrid power generation street light excellent in maintenance.

According to the invention described in 4, the voltage and current of the wind power generation unit can be measured, and the rotation speed and the wind speed of the wind turbine can be grasped from these measured values. It can slow down or stop.
In addition, it is also possible to stop the wind turbine if it can supply the necessary power by solar power generation.

According to the invention described in the fifth aspect, the attachment of each part and the wiring to the inside of the column are easy, and the efficiency of assembling the hybrid power generation street lamp at the installation site can be increased.
Further, by dividing the support into two or more members, the length of one member can be reduced, and the transportation of the support to the installation site becomes easy.

The perspective view showing the hybrid generation street lamp concerning the present invention A perspective view showing a wind power generation unit Side view showing a solar power generation unit Side view showing the lighting unit Schematic explanatory drawing which shows an electrical storage part and a lower support | pillar Schematic explanatory drawing which shows a control part and a lower support | pillar Schematic connection diagram Schematic flowchart showing the switching function of the power generation unit in the control unit Perspective view of the upper column (A) perspective view and (b) partial cross-sectional view showing the lower support

The hybrid-generation-type street lamp according to the present invention is a street lamp capable of generating electric power by two natural energy of wind power and sunlight, storing the generated electric power, and covering all the electric power necessary for lighting the lamp. , It is a street light that does not require an external power supply.
In addition, it is a completely independent street light that can control and control all of power generation, storage, and lighting in one street light, and does not require external management and control.

A hybrid power generation street lamp according to the present invention will be described based on FIGS. 1 to 10.
As shown in FIG. 1, the hybrid power generation street lamp 1 includes a wind power generation unit 2, a solar power generation unit 3, a lighting unit 4, a storage unit 5, a control unit 6, and a support 7.

The wind power generation unit 2 is disposed at the top of the support 7, the solar power generation unit 3 is disposed below the wind power generation unit 2, and the illumination unit 4 is disposed below the solar power generation unit 3. Power storage unit 5 and control unit 6 are accommodated inside support column 7.

For the wind power generation unit 2, a vertical axis wind turbine 21 having a power generation function is adopted.
As shown in FIG. 2, the vertical axis wind turbine 21 is configured of vertically long wings 22 and a shaft 24 and an arm 25 connecting them. A generator (not shown) and a braking unit 26 are incorporated in the shaft portion 24, and a connection portion 27 for connecting to the top of the support 7 is formed at the lower end.
In the vertical axis wind turbine 21, two vertically elongated wings 22 opposing each other with the shaft 24 as a center are the arms 2.
Connected by 5 At the upper and lower end portions of the vertically elongated wing 22, an inward inclined portion 23 which is inclined toward the shaft portion 24 is formed. By providing the inward inclined portion 23, it is possible to prevent the wind hitting the inner surface of the long wing 22 from diffusing to the upper and lower end portions, and it is possible to obtain stable rotation of the wind turbine even in a weak wind environment.

By using the vertical axis wind turbine 21 having a form as shown in FIG. 2, it is possible to obtain the rotation of the wind turbine required for power generation. This reduces the number of blades, optimizes the length of the arms 25, and widens the area of the long wings 22 compared to a cross flow type or gyro mill type generally known as a wind turbine, so that the wind turbine can It is because it can draw out the lift that it can obtain. As a result, the torque is increased, and by increasing the number of revolutions of the wind turbine to the optimum speed, it is possible to maximize the wind power.

The vertical axis wind turbine 21 employed in the present invention is not limited in size or specification, for example, power generation capacity: 24 V. 200 W, total height of the long wing: 1000 mm, width of the long wing: 160 mm, radius of rotation: 315 mm, Can be mentioned.

The shaft portion 24 of the vertical axis wind turbine 21 incorporates a braking portion 26 for reducing or stopping the rotation of the wind turbine.
The braking unit 26 is provided to prevent failure or destruction due to excessive rotation by strong wind, and the rotation speed of the wind turbine is reduced by the action of the braking unit 26, or the rotation of the wind turbine is stopped.

Since the braking unit 26 is automatically controlled by the control unit 6 described later, it is possible to prevent the windmill from being broken or destroyed due to excessive rotation even when it is attacked by a strong wind caused by a typhoon or a tornado. Can.
As the braking means in the braking unit 26, publicly known and public means can be adopted without particular limitation as a braking means of a wind turbine such as an electric brake or a mechanical brake. For example, a method of applying an infinite load to this generator by short-circuiting the output from the generator built in the shaft 24 as the braking unit 26 by disconnecting it from the battery 51, so-called electric brake (or Braking means can be employed.

The solar power generation part 3 is comprised from the solar panel 31 to which the power generation function was added, and the connection part 32, as shown in FIG. The solar panel 31 can be attached with one or more pieces. When two or more solar panels 31 are attached, they can be vertically or horizontally juxtaposed in the same direction, or can be attached in the other direction.

The connection part 32 for connecting with the support | pillar 7 is provided in the back surface of the solar panel 31, By adjusting the connection angle with this connection part 32, the installation angle of the solar panel 31 can be adjusted. .
The connecting / fixing means between the connecting portion 32 and the support 7 is not limited. For example, a rotating holding portion 33 which can be held / fixed to the support 7 is provided, and the holding portion 33 and the connecting portion 32 can be mentioned. By using the means of holding, the installation direction of the solar panel 31 can be freely adjusted.

As a solar panel 31 used in the present invention, a solar panel having a power generation function can be adopted without any particular limitation, as a solar panel having a power generation function and which is commonly used. For example, power generation capacity: 24 V, 40 W, panel height: 665 mm, panel width: 538 mm can be mentioned.
Also for the connection portion 32, as long as the solar panel 31 and the support 7 can be connected, publicly known and publicly used techniques can be adopted without particular limitation as this type of connection method.

The illumination part 4 is comprised from the illumination 41 and the connection part 42, as shown in FIG. The lights 41 can be fitted with one or more quantities.
The connection portion 42 is provided to connect the light 41 and the support 7. By adjusting the shape of the connection portion 42 and the connection angle between the connection portion 42 and the illumination 41, the installation angle of the illumination 41 can be adjusted.
The connecting / fixing means between the connecting portion 42 and the support 7 is not limited. For example, a rotating holding portion 43 which can be held / fixed to the support 7 is provided, and the holding portion 43 and the connecting portion 42 can be mentioned. By using the means of holding, the installation direction of the light 41 can be freely adjusted.

As the illumination 41 used in the present invention, known illuminations and illuminations used as street lights can be adopted without particular limitation. However, from the viewpoint of power saving, it is preferable to use LED lighting that consumes less power. In addition, it is preferable to adopt LED lighting of about 8 W to 20 W from the viewpoints of securing illuminance necessary for a street lamp and suppressing power consumption. As LED lighting employ | adopted by this invention, the thing of power consumption: 15W can be mentioned, for example.
Moreover, if the illumination 41 and the support | pillar 7 can be connected also about the connection part 42, the technique of well-known use can be employ | adopted without a special restriction | limiting as a connection method of this kind.

Power storage unit 5 is configured of battery 51 and storage unit 52, as shown in FIG.
The storage unit 5 is for storing the power generated by the wind power generation unit 2 and the solar power generation unit 3 and supplying power to the lighting unit 4.
The battery 51 is provided with at least two, and preferably in two to four quantities. This is because even if a problem such as an increase in the amount of natural discharge can not be performed due to an increase in the amount of natural discharge or the like occurs in one battery, the storage capacity can be compensated by the other battery. This can reduce the frequency of maintenance.

The housing portion 52 is for housing the battery 51. As will be described later, the battery 51 is accommodated in the accommodating portion 52, and these are accommodated inside the support 7.

As the battery 51 used in the present invention, a battery commonly known and used as this type of battery can be adopted without particular limitation.
Since the power generation means in the present invention utilizes natural energy such as wind power and solar light, it is necessary to select the battery 51 in consideration of, for example, a case where the weather condition is small with little sunshine and almost no wind. is there. In addition, the power used varies depending on the power consumption of the light 41 used in the lighting unit 4. When such matters are comprehensively considered, for example, it can be mentioned that three batteries of 24 V 10 A / h are connected in parallel to form an electricity storage unit having a capacity of 24 V 30 A / h.

Also for the accommodating portion 52, if it is possible to accommodate two or more batteries 51 and to be accommodated in the support 7, a publicly known and commonly used accommodating member of this type can be adopted without particular limitation.
In addition, in order to prevent the drop-off and the like of the battery 51, the housing portion 52 is preferably a closed space such as providing a lid as shown in FIG. Preferably, the housing 52 is provided with an opening for drawing out the electrical cable connected to the battery 51.

The control part 6 is comprised from the control unit 61 and the accommodating part 62, as shown in FIG.
The control unit 6 is for controlling the operations of the wind power generation unit 2, the solar power generation unit 3, the lighting unit 4, and the storage unit 5. Therefore, as shown in the schematic connection diagram of FIG. 7, the air flow generation unit 2, the solar power generation unit 3, the lighting unit 4 and the storage unit 5 are directly connected to the control unit 6, and mutually connected via the control unit 6. Ru.

The control unit 61 includes a substrate on which a central processing unit (CPU) and a storage device are mounted, and a connection terminal for the wind power generation unit 2, the solar power generation unit 3, the lighting unit 4 and the storage unit 5, A program for automatically controlling the hybrid power generation street lamp 1 according to the present invention is provided.

The housing portion 62 is for housing the control unit 61. As will be described later, the control unit 61 is accommodated in the accommodating portion 62, and these are accommodated inside the support 7.
If the accommodating part 62 accommodates the control unit 61 and can be accommodated in the support column 7, a publicly known and public thing can be adopted as this kind of accommodating member without particular limitation.
The housing portion 62 is preferably a closed space in order to prevent the control unit 61 from falling off or the like. Moreover, it is preferable to provide the opening for drawing out the electric cable by which the control unit 61 and each part are connected in the accommodating part 62. As shown in FIG.

The control unit 6 has at least the following functions.
(1) Selection of wind power generation unit and solar power generation unit (2) Selection of battery to be stored (3) Selection of battery to supply power to lighting unit (4) Control of lighting unit (5) Wind power generation unit and solar Measurement of voltage and current of photovoltaic unit and measurement of voltage and current of storage unit (6) AC / DC conversion (7) Control of braking unit

The functions (1) to (7) will be described in detail below.
(1) Selection of wind power generation unit and solar power generation unit As described above, the hybrid power generation street light 1 according to the present invention has two power generation units configured of the wind power generation unit 2 and the solar power generation unit 3 .
Only one of these power generation units can be operated, the other can be stopped, or both can be operated in combination.

A schematic flowchart of the selection / switching function between the wind power generation unit and the solar power generation unit is shown in FIG.
As will be described later, in the control unit 6, voltage values and current values of the wind power generation unit 2 and the solar power generation unit 3 are measured. Based on these measured values, a power generation unit that generates power is selected and switched.

When the measured value in the solar power generation unit 3 satisfies (exceeds) the value (the sunshine prescribed value) indicating the sunshine required to generate power, the solar power generation unit 3 is selected and operated to generate power. In addition, when the solar power generation unit 3 is in operation, if the measured value falls short of (falls below) a value (sunlight specified value) indicating sunshine required to generate power, the solar power generation unit 3 Is suspended and selected to switch to the power generation by the wind power generation unit 2.

A value (sunlight specified value) indicating sunshine required to generate power may be set by comprehensively considering the environment where the hybrid streetlight 1 is installed, the capacity of the storage battery 5 to be used, etc. it can. A value (sunlight specified value) indicating sunshine necessary to generate power is mainly set by a voltage value in the solar panel 31.

The wind power generation unit 2 operates when the solar power generation unit 3 is suspended due to lack of sunshine. Furthermore, even if the solar power generation unit 3 is operating, the wind power generation unit 2 is operated when the capacity of the power storage unit 5 is equal to or less than the specified value (power storage unit specified value: insufficient). Further, when the solar power generation unit 3 is operated when the wind power generation unit 2 is in operation, and the capacity of the power storage unit 5 exceeds the specified value (power storage unit specified value: satisfied), the wind power is generated. The power generation unit 2 is suspended.

Thus, the selection of the operation or suspension of the wind power generation unit 2 is basically determined by whether or not the solar power generation unit 3 is operating, and as an exception, whether the capacity of the storage unit 5 exceeds the specified value It is determined by whether or not (power storage unit specified value: satisfied or insufficient).

(2) Selection of Battery to be Stored As described above, the storage unit 5 includes two or more batteries 51. Therefore, it is necessary to select and control which battery among the plurality of batteries 51 is to be charged.
As will be described later, the control unit 6 measures the voltage value and current value of each battery 51 in the storage unit 5, and in some cases, the capacity and power value. Based on these measured values, the battery 51 that stores electricity is selected and switched.

Selection and switching of the battery 51 to be stored are, for example, as follows when the storage unit 5 includes three batteries 51.
First, the voltage of each battery is measured and stored in the battery with the lowest voltage. When the voltage of this battery reaches a specified value, the voltage of each battery is measured again, and the storage is switched to the battery with the lowest voltage. Thus, the measurement and storage of voltage are repeated. The voltage of each battery is measured by the control unit 6.
Here, when the voltages of all the batteries reach a specified value, storage of electricity is stopped to prevent overcharging. Then, when the voltage of one of the batteries falls below a specified value, storage of the battery is resumed.

(3) Selection of Battery to Supply Power to Lighting Unit As described above, the storage unit 5 includes two or more batteries 51. Therefore, when power is supplied to the lighting unit 4, it is necessary to select and control from which of the plurality of batteries 51 to supply power.
Although described later, the control unit 6 measures the voltage value, current value, capacity, and power value of each battery 51 in the storage unit 5. Based on these measured values, the battery 51 that supplies power to the lighting unit 4 is selected and switched.

Selection and switching of the battery 51 for supplying power to the lighting unit 4 are as follows, for example, in the case where the power storage unit 5 includes three batteries 51.
First, the voltage of each battery is measured, and power is supplied from the battery with the highest voltage. When the voltage of this battery falls below a specified value, the voltage of each battery is measured again and switched so that the power is supplied from the battery with the highest voltage. Thus, voltage measurement and power supply are repeated. The voltage of each battery is measured by the control unit 6.

The specified value of the battery voltage can be set arbitrarily in consideration of battery performance etc. For example, in the case of a battery with a maximum voltage of 25 V at the time of use, this specified value should be around 22.5 V It can be set.
Here, when the voltages of all the batteries fall below a specified value, the supply of power is stopped to prevent overdischarge. Then, when the voltage of any battery reaches a specified value, the power supply from the battery is resumed.

(4) Control of the illumination unit The illumination 41 of the illumination unit 4 is turned off when the sunshine is sufficient and it is not necessary to turn on the illumination, and turned on when the sunshine is absent or insufficient, such as at night. .
The selection of lighting or extinguishing of the light 41 is selected and controlled based on the measurement value in the solar power generation unit 3.

Since the solar power generation is a power generation method that utilizes the photovoltaic effect and converts the energy of sunlight into electric power, the stronger the sunlight irradiated to the solar panel 31, the larger the obtained power becomes. The control of the illumination unit 4 utilizes this principle.
That is, since the measured values of voltage and current in the solar power generation unit 3 indicate the intensity of sunlight to be applied to the solar panel 31 and indicate the sunshine condition and brightness, the present invention These measured values are used as a judgment material for the selection of lighting or non-lighting of the light 41.
Therefore, when the measured values exceed the predetermined value, the light 41 is turned off. When the measured values are less than the predetermined value, the light 41 is turned on.

In addition, as a means to control the illumination part 4, the control means by a light-and-darkness sensor, and the means to time-control the on / off of illumination can be employ | adopted. However, the control by the light and dark sensor not only makes the detection of brightness unstable depending on the installation position of the sensor, but separate members must be provided, and the control by time management sets the setting of sunrise / sunset time which changes depending on the season There is a problem of costing.

(5) Measurement of voltage and current of wind power generation unit and solar power generation unit, and measurement of voltage and current of power storage unit As described above, in control unit 6, wind power generation unit 2, solar power generation unit 3, and power storage unit The voltage 4 etc. is constantly measured. These measurement values are used as judgment materials necessary to control each part.

For the wind power generation unit 2 and the solar power generation unit 3, respective values of voltage and current are measured. In addition, the generated power may be measured.
The power generation state can be grasped from the measured value in the wind power generation unit 2, and the wind speed, and the rotation speed and rotational speed of the vertical axis wind turbine 21 can also be grasped by converting this measured value. By grasping the rotation speed and the rotation speed of the vertical axis wind turbine 21, it is possible to know the over rotation of the wind turbine, and to operate the above-mentioned braking unit 26 to decelerate or stop the rotation of the wind turbine.
In addition, about control of the damping | braking part 25, even if it converts a measured value and does not calculate the rotation speed of a windmill, etc., the conditions which make a damping | braking part operate may be set based on measured values, such as voltage, beforehand. .

From the measurement value in the solar power generation part 3, the power generation condition can be grasped | ascertained, and as mentioned above, the sunshine condition and the brightness of the place where the hybrid electric power generation street lamp 1 is installed can also be grasped | ascertained.
By measuring the voltage and current of the solar power generation unit 3, it is possible to determine the presence or absence of sunshine required to generate power, whereby selection / control of whether to generate power in the solar power generation unit 3 You can
In addition, by measuring the voltage and current of the solar power generation unit 3, it is possible to grasp the intensity of the sunlight to be applied to the solar panel 31, so that it is possible to grasp the sunshine condition and the brightness. It is possible to select and control whether to turn on the light 41 in the unit 4.

With respect to power storage unit 5, each value of voltage and current is measured. In addition, the capacity and the generated power may be measured.
From the measurement value of the storage unit 5, the storage condition of each battery 51 can be grasped, and mainly from the voltage and the current.

(6) AC / DC Conversion The control unit 6 has a function of converting alternating current (AC) into direct current (DC).
This function is provided because the electric power generated by the wind power generation unit 2 is an alternating current, and it is necessary to convert it into a direct current in order to store the electric power in the storage unit 5.
As means for converting alternating current to direct current, publicly known means such as incorporating a rectifier circuit can be adopted without particular limitation.

(7) Control of Braking Unit As described above, the vertical axis wind turbine 21 of the wind power generation unit 2 includes the braking unit 26.
The braking unit 26 is provided to prevent the vertical axis wind turbine 21 from being broken or destroyed by excessive rotation by strong wind, and the rotation speed of the wind turbine is reduced by the action of the braking unit 26, or the rotation of the wind turbine is It is stopped.

Selection and control as to whether to reduce the rotational speed of the wind turbine or to stop the rotation of the wind turbine by the braking unit 26 are performed based on the measured values of the voltage and current in the wind power generation unit 2. That is, a situation where the wind turbine may be broken or destroyed due to excessive rotation is set in advance as a specified value, and when the voltage or current reaches the specified value, the rotational speed of the wind turbine is reduced or the rotation of the wind turbine Are stopped.

The support 7 is erected vertically to the ground of the installation place divided up and down, and for attaching the wind power generation unit 2, the solar power generation unit 3, the illumination unit 4, the storage unit 5, and the control unit 6 to each other. It is a thing. Therefore, the height which only mounts each part is required. Considering the installation positions (heights) of the wind power generation unit 2, the solar power generation unit 3 and the illumination unit 4, the height from the ground is suitably about 4 m to 8 m.

The post 7 is preferably composed of two or more posts, and more preferably composed of two posts of an upper post 71 and a lower post 72. It is because the attachment of each part and the wiring to the inside of a support | pillar are easy, and when assembling the hybrid electric power generation street lamp 1 which concerns on this invention in an installation site, the efficiency can be raised. Also, when transporting the support 7 to the installation site, it is more convenient to be able to be divided into two or more members.

As the support 7 employed in the present invention, for example, the upper support 71 is a hollow cylindrical type having a diameter of about 140 mm and a height of about 2000 mm, and the lower support 72 is a hollow prismatic type having a cross section of one side And a square having a length of about 300 mm and a length of about 3000 mm.

The wind power generation unit 2, the solar power generation unit 3, and the lighting unit 4 are attached to the upper support 71. In lower support column 72, power storage unit 5 and control unit 6 are accommodated inside the support column.

As shown in FIG. 9, it is preferable that the upper support 71 be provided with a cable insertion hole 711 for inserting a cable connecting the respective parts with each other between the inside and the outside of the support. Further, in order to prevent wind and rain from entering the inside of the column from the cable insertion hole 711, it is preferable to provide a hood 712 which covers the cable insertion hole 711. Although there is no limitation on the mode of the hood 712, for example, as shown in FIG. 9, the cable insertion hole 711 can be covered with a box-shaped member which is open at the bottom.

An upper end connection portion 713 for connecting to the wind power generation unit 2 is provided at the upper end of the upper support column 71. A lower end connecting portion 713 for connecting to the lower support 72 is provided at the lower end of the upper support 71. In the present invention, the form of the upper end connecting portion 713 and the lower end connecting portion 714 is not limited. For example, as shown in FIG. 9, a wind portion having a bolt hole and a corresponding connecting portion is formed. The aspect which bolt-bonds with the electric power generation part 2 or the lower support | pillar 72 can be mentioned.

The lower support post 72 will be described based on FIGS. 10 (a) and 10 (b). 10 (a) is a perspective view of the lower support column 72, and FIG. 10 (b) is a partial cross-sectional view as viewed from the side in a case where the side where the storage portion opening 721 is provided is a front.
As shown in FIG. 10A, the lower support column 72 is provided with a storage unit opening 721 for storing the storage unit 5, a storage unit opening door 722, and a storage unit shelf 723.

The storage unit opening 721 is an opening provided on the side surface of the support post for accommodating the storage unit 5 inside the lower support post 72. The form is not particularly limited as long as the storage unit 5 can be put in and out.

The storage unit opening door 722 is a door for closing the storage unit opening 721 as shown in FIG. It plays a role of preventing wind and rain from entering the lower support 72 and protecting the stored power storage unit 5 from wind and rain and theft. There is no particular limitation on the form as long as the storage unit opening 721 can be closed. The means for attaching the storage unit opening door 722 to the lower support post 72 is not particularly limited, and examples thereof include screwing, locking, and means for attaching a hinge on one side.

As shown in FIG. 10B, storage unit shelf 723 is provided approximately horizontally with the ground in the internal space of lower support column 72, and is a shelf for mounting storage unit 5. There is no particular limitation on the form as long as the storage unit 5 can be placed. However, it is preferable not to fill the space inside the support column entirely in the horizontal direction but to maintain a space through which the cable is inserted.

As shown in FIG. 10A, the lower support column 72 is provided with a control unit opening 724 for housing the control unit 6, a control unit opening door 725, and a control unit shelf 726.
The control unit opening 724 is an opening provided on the side surface of the support post to accommodate the control unit 6 inside the lower support post 72. The form is not particularly limited as long as the control unit 6 can be put in and out.

The control unit opening door 725 is a door for closing the control unit opening 724, as shown in FIG. 10 (b). It plays a role of preventing wind and rain from entering the lower support column 72 and protecting the housed control unit 6 from wind and rain and theft. The form is not particularly limited as long as the control part opening 724 can be closed. Also, the means for attaching the control portion opening door 725 to the lower support post 72 is not particularly limited, and examples thereof include screwing, locking, and means for attaching a hinge on one side.

As shown in FIG. 10B, the control unit shelf 726 is provided approximately horizontally with the ground in the internal space of the lower support column 72, and is a shelf for mounting the control unit 6. The form is not particularly limited as long as the control unit 6 can be placed. However, it is preferable not to fill the space inside the support column entirely in the horizontal direction but to maintain a space through which the cable is inserted.

An upper end connection portion 727 for connecting with the upper support 71 is provided at the upper end of the lower support 72. Further, at the lower end of the lower support column 72, a lower end connection portion 728 for fixing and connecting to the installation ground or a concrete foundation or the like provided on the installation ground is provided. In the present invention, the forms of the upper end connecting portion 727 and the lower end connecting portion 728 are not limited. For example, as shown in FIG. 10A, as the upper end connection portion 727, there can be mentioned a mode in which a bolt hole corresponding to the shape of the lower end connection portion 714 of the upper support column 71 is provided on the upper end face. As an example, there can be mentioned an aspect in which a flange portion provided with a bolt hole is formed, and a concrete foundation or the like provided on the installation ground or the installation ground is bolted.

Up to this point, each component of the hybrid power generation street lamp 1 according to the present invention has been described in detail.
From here, the positional relationship in which each part which comprises hybrid generation type street lamp 1 is arrange | positioned is demonstrated.

As shown in FIG. 1, the hybrid streetlight 1 according to the present invention is configured by attaching a wind power generation unit 2, a solar power generation unit 3, a lighting unit 4, a storage unit 5 and a control unit 6 to a support 7. Be done. When the support 7 includes the upper support 71 and the lower support 72, the air flow generation unit 2, the solar power generation unit 3, and the lighting unit 4 are attached to the upper support 71, and the storage unit 5 and the control unit 6 are the lower support. 72 housed inside.

The wind power generation unit 2 is attached to the upper end of the upper support 71, and is attached by connecting the connection unit 27 of the wind power generation unit 2 and the upper end connection unit 713 of the upper support 71. The wind power generation unit 2 is preferably attached to the top of the hybrid streetlight 1 in order to catch winds from all directions.

The solar power generation unit 3 is attached below or directly below the wind power generation unit 2. For example, the connection portion 32 of the photovoltaic power generation unit 3 is attached to the upper support 71 via the holding unit 33.
In order to capture sunlight (sunlight) as much as possible, the solar power generation unit 3 is attached so that the solar panel 31 is directed in the south direction, and the upper end side of the solar panel 31 is inclined toward the support 7.

The lighting unit 4 is attached below or directly below the solar power generation unit 3. For example, the connection portion 42 of the lighting unit 4 is attached to the upper support 71 via the holding unit 43. The lighting unit 4 is preferably mounted below the wind power generation unit 2 and the solar power generation unit 3. It is for avoiding that the wind-power-generation part 2 and the solar power generation part 3 become obstruction of irradiation by the illumination 41. FIG.
However, in the present invention, it is not excluded that the lighting unit 4 is attached to the top of the hybrid power generation street lamp 1.

Power storage unit 5 is housed inside lower column 72. Although there is no limitation on the means to be accommodated, as shown in FIG. 10B, the lower support column 72 may be provided with the storage unit shelf 723 and may be mounted on the lower support column 72.

The control unit 6 is housed inside the lower support column 72. Although there is no limitation on the means to be accommodated, as shown in FIG. 10 (b), the lower support column 72 may be provided with the control unit shelf 726, and the means to be placed there may be mentioned.
The positional relationship between the storage unit 5 and the control unit 6 is not limited, and the storage unit 5 may be accommodated below the control unit 6.

The wind power generation unit 2, the solar power generation unit 3, the illumination unit 4, the storage unit 5, and the control unit 6 are connected by an electric cable. Specifically, as shown in the schematic connection diagram shown in FIG. 7, the wind power generation unit 2, the solar power generation unit 3, the lighting unit 4 and the storage unit 5 are directly connected to the control unit 6 and mutually connected via the control unit 6 Be done. Each electrical cable is inserted into the inside of the support 7.
In the present invention, a known lightning rod for public use may be adopted and attached to the hybrid power generation street lamp 1, and a ground wire connecting the lightning rod to the ground may be wired anywhere inside or outside the support 7. .

The hybrid power generation street lamp according to the present invention has two types of power generation means of wind power generation and solar power generation, and also has a function of storing the generated electric power, so it does not require external power supply. Therefore, even at the time of a power failure due to a disaster or the like, there is no loss of the function of lighting the light as a street light, and further, there is an advantage that installation is easy because connection work with an external power supply is unnecessary. Furthermore, in order to generate electricity using natural energy, it is a street light that also considers the natural environment.
Because of these features, it can be widely used as an alternative to existing streetlights that receive power from transmission lines. In particular, it can be widely used even in developing countries where transmission environment is not established.

DESCRIPTION OF SYMBOLS 1 hybrid generation type street light 2 wind power generation part 21 vertical axis wind turbine 22 vertical long wing 23 inward inclined part 24 axis part 25 arm part 26 braking part 27 connection part 3 solar power generation part 31 solar panel 32 connection part 33 holding part DESCRIPTION OF SYMBOLS 4 illumination part 41 illumination 42 connection part 43 holding part 5 electrical storage part 51 battery 52 accommodation part 6 control part 61 control unit 62 accommodation part 7 post 71 upper support 711 cable penetration hole 712 hood 713 upper end connection part 714 lower end connection part 72 lower part Support column 721 Storage unit opening 722 Storage unit opening door 723 Storage unit shelf 724 Control unit opening 725 Control unit opening door 726 Control unit shelf 727 Upper end connection section 728 Lower end connection section

Claims

Hybrid-powered streetlight with the following AI:
A Wind power generation unit B having a vertical axis type wind turbine provided with a power generation function Solar power generation unit C having a solar panel provided with a power generation function Electric storage provided with two or more batteries for storing electric power generated by A or B Part D Lighting part E lit by electric power stored in C Control part F for controlling the operation of A to D Column part G to which A to E is attached Two vertically elongated wind turbines The upper and lower end portions of the longitudinally elongated wing form an inward inclined portion which inclines in the axial direction. The vertical axis wind turbine has a braking portion for decelerating or stopping the rotation of the wind turbine. I The solar panel is located below the vertical axis wind turbine, and the upper end of the solar panel is inclined toward the support column
The hybrid powered street light according to claim 1, wherein the control unit has at least the following functions.
(1) Selection of wind power generation unit and solar power generation unit (2) Selection of battery to be stored (3) Selection of battery to supply power to lighting unit (4) Control of lighting unit (5) Wind power generation unit and solar Measurement of voltage and current of photovoltaic unit and measurement of voltage and current of storage unit (6) AC / DC conversion (7) Control of braking unit
The hybrid power generation street light according to claim 1 or 2, wherein the control unit is configured to select lighting or extinguishing of the lighting unit based on the measurement value of the solar power generation unit.
The hybrid power generation system according to any one of claims 1 to 3, wherein the control unit is configured to select to reduce or stop the rotation of the wind turbine by the braking unit based on the measurement value of the wind power generation unit. Street light.
The support is composed of an upper support and a lower support, the wind power generation unit, the solar power generation unit and the lighting unit are attached to the upper support, and the storage unit and the control unit are accommodated inside the lower support. A hybrid powered street light according to any of the preceding claims, characterized in that