KR102555198B1 - Voltage controllable solar and wind power street light apparatus using super capacitor - Google Patents

Abstract

The present invention includes a photovoltaic power generation module 100 installed on a post of a street light and having a power generation capacity to enable solar power generation by 1.2 to 2 times the maximum power consumption of the load-side lighting fixture 10; a wind power generator 200 installed on a post of a street light and generating wind power to provide generated electricity to the load-side lamp 10; The power generation module 100 and the wind power generation means 200 are connected to each other, and the connection terminal 310 converts the voltage to prevent a voltage collision caused by a voltage difference between the generators, and connectors 300 each having a voltage converter 320; a voltage controller 400 connected to the connector 300 and blocking an input voltage under the control of a central controller to prevent overcharging of the capacitor module according to an input voltage value; It is connected to the voltage controller 400, detects the voltage and current of each of the plurality of supercapacitor cells configured in the capacitor module, and uses a MOSFET to match the voltage of each cell to prevent overcharge and overdischarge, and a preset voltage value a capacitor module protector 500 that returns to a cell balance to perform a cell balance operation; A plurality of supercapacitor cells (610) that store electricity generated by each of the photovoltaic module 100 and the wind power generator 200 to provide electricity generated to the lamp 10 and can be charged super-quickly a capacitor module 600 connected in series, parallel, or series/parallel to control the overall voltage and balance of each cell through the voltage controller 400 and the capacitor module protector 500; A first DC/DC converter that receives the output voltage of each of the connector 300, the voltage controller 400, and the capacitor module protector 500, boosts or steps it down in a buck-boost method, and supplies it to the central controller ( 700) and; While being operated with the voltage supplied from the DC/DC converter 700, electricity generated by the photovoltaic module 100 is stored during the daytime, and a full charge voltage value for controlling the voltage controller 400 is set to A central controller 800 that controls to prevent overcharging of the capacitor module 600 and smartly controls the lighting and turning off of the lamp 10 by setting the lighting time, voltage and dimming of the photovoltaic module, respectively and; It is characterized by including a second DC/DC converter 900 that receives the electrical energy stored in the capacitor module 600 and converts it into a voltage required by the lamp by boosting or stepping it down in a buck-boost manner. It relates to a voltage-controlled solar and wind power street light device using a supercapacitor.

Description

Voltage controllable solar and wind power street light apparatus using super capacitor {Voltage controllable solar and wind power street light apparatus using super capacitor}

The present invention relates to a solar and wind power street lamp device, and more particularly, to increase the power generation efficiency of a street light by using solar and wind power, and to control the voltage of the entire storage battery while improving the rapid charging speed of a capacitor by a voltage control method. to prevent overcharge, prevent overcharge and overdischarge while matching the voltage of a plurality of supercapacitor cells configured in the capacitor, and perform cell balance work by returning to a preset voltage value to improve the protection performance of the capacitor It relates to a voltage-controlled solar and wind power street light device using a supercapacitor.

In general, a solar street light stores electrical energy generated from a solar cell by solar radiation quantity in a secondary battery to operate at night. come.

Since secondary batteries are charged by chemical reactions due to their characteristics, in Korea, the average annual insolation is less than 35 hours, and the solar radiation energy from the sun is insufficient to reach the solar cells, so there is a limit to charging. In addition, equatorial countries have a lot of solar radiation, but there is a problem in the chemical reaction of the secondary battery due to the rapid temperature rise of the solar cell, making it difficult to store photovoltaic power generation energy. In addition, in countries with high latitudes, it is difficult to store photovoltaic power generation energy as the operating temperature of the secondary battery is low because the winter period is very long and solar radiation is low.

The capacitor method that can solve this problem has rapid charge and discharge characteristics, so the storage period of solar power generation energy is shorter than that of secondary batteries, but it is possible to charge super fast and has the ability to store solar power generation energy on the same day. Since it is very high and can be used for a long time, it can be used very efficiently for street lights. In addition, the long charge and short lifespan of secondary batteries and the malfunction of the battery management system (BMS), which is built into the rechargeable battery pack and automatically manages the operation, life, safety, etc. Not only does it improve the low storage efficiency of photovoltaic energy, but it can be used semi-permanently.

However, since a capacitor is a module assembly of condensers (capacitors) connected in series, a control circuit of a DC/DC converter, which is a drive for storing electricity in a capacitor cell, must be devised to solve problems caused by rapid discharge.

In addition, the configuration of the voltage control circuit according to overcharging of the capacitor must be optimized. In other words, if the cell voltage of the condenser (capacitor) connected in series is different from the charging voltage at the front, middle, and rear ends, the internal resistance value is different for each cell, so some cells are overcharged and some cells are charged with low voltage, eventually leading to nighttime Not only do they not properly store the electricity they need, but overcharged cells can have shorter lifespans than secondary batteries.

On the other hand, as shown in FIG. 1, Korean Patent Registration No. 10-2151524 (August 28, 2020) proposed a solar street light control system using a capacitor, and the maximum power consumption of the load-side lighting fixture 600 A solar cell 100 capable of generating solar power 15 times and supplying power generated by the converter 110 and the voltage current controller 400; In order to send generated power to the lamp 600, the electricity charged through the solar cell 100 is stored during the daytime, and a module assembly of capacitors capable of ultra-fast charging is connected in series or parallel, or in series or parallel. a capacitor 200 in which is selected; The charge amount stored in the capacitor is monitored in real-time through the capacitor manager 210 for overvoltage and overcharge, and when charging is completed, the voltage and current controller 400 is driven to limit the charge amount, and during the week If the power input from the converter 110 is monitored and controlled, and power generation is not generated due to weather abnormality during power generation of the solar cell, the charging voltage state of the capacitor is checked from the capacitor manager and the central controller uses its own auxiliary power source 220. a central controller (300) which intermittently controls supply to the capacitor to be in a fully charged state; Controlling the optimal charging voltage and current supplied to the capacitor by receiving power input from the solar cell and receiving a signal input from the central controller at the same time to intermittently control the voltage and current so that the capacitor does not overcharge a voltage and current controller 400; a DC/DC converter 500 equipped with a street light input voltage regulator 510 for receiving the power stored in the capacitor and converting it into a voltage required by the lamp; TEST S / W (700) to test and check whether the solar street light connected to the lamp is working in seconds or minutes before and after installation; It is characterized in that a display window 800 is included for displaying the voltage and the state of the lamp with a pilot lamp or LED during the test or operation of the system through the TEST S/W.

However, the proposed technology optimizes the capacitor composed of a module assembly of condensers (capacitors) as a storage device and supply power for solar power generation energy, leading to efficient use in solar street lights. However, there is a problem in that there is a limitation in supplying power to lamps of street lights due to low solar power generation efficiency in the case of places and nights.

In addition, the proposed technology induces to regulate the voltage and current of the capacitor through the voltage current controller, but due to the nature of photovoltaic power generation, the amplitude of the current change along with the rapid voltage change occurs according to the amount of sunlight, and the voltage and current In the case of control, there is also a problem in that rapid charging of the capacitor is hindered and voltage imbalance occurs between each cell configured in the capacitor. That is, if the voltage difference between each cell is excessive in a capacitor composed of a module assembly of capacitors (capacitors), the cell may be damaged and the life span of the capacitor may be shortened. There is a problem of poor performance in supplying power. The proposed technology only consists of a voltage current control method, and no means of protecting the capacitor has been devised to solve this problem.

The object of the present invention, which was made to solve the above problems, is to increase the power generation efficiency of street lights using solar and wind power, and to control the voltage of the entire storage battery while improving the rapid charging speed of the storage battery through a voltage control method. Prevents overcharge, prevents overcharge and overdischarge while matching the voltage of a plurality of supercapacitor cells composed of a capacitor, and returns to a preset voltage value to perform cell balance to improve the protection performance of the capacitor It is to provide a voltage-controlled solar and wind power street light device using a supercapacitor.

According to the features of the present invention for achieving the above object, a photovoltaic power generation module installed on a post of a street light and having a power generation capacity to enable solar power generation by 1.2 to 2 times the maximum power consumption of the load-side lighting fixture 10 (100) and; a wind power generator 200 installed on a post of a street light and generating wind power to provide generated electricity to the load-side lamp 10; The power generation module 100 and the wind power generation means 200 are connected to each other, and the connection terminal 310 converts the voltage to prevent a voltage collision caused by a voltage difference between the generators, and connectors 300 each having a voltage converter 320; a voltage controller 400 connected to the connector 300 and blocking an input voltage under the control of a central controller to prevent overcharging of the capacitor module according to an input voltage value; It is connected to the voltage controller 400, detects the voltage and current of each of the plurality of supercapacitor cells configured in the capacitor module, and uses a MOSFET to match the voltage of each cell to prevent overcharge and overdischarge, and a preset voltage value a capacitor module protector 500 that returns to a cell balance to perform a cell balance operation; A plurality of supercapacitor cells (610) that store electricity generated by each of the photovoltaic module 100 and the wind power generator 200 to provide electricity generated to the lamp 10 and can be charged super-quickly a capacitor module 600 connected in series, parallel, or series/parallel to control the overall voltage and balance of each cell through the voltage controller 400 and the capacitor module protector 500; A first DC/DC converter that receives the output voltage of each of the connector 300, the voltage controller 400, and the capacitor module protector 500, boosts or steps it down in a buck-boost method, and supplies it to the central controller ( 700) and; While being operated with the voltage supplied from the DC/DC converter 700, electricity generated by the photovoltaic module 100 is stored during the daytime, and a full charge voltage value for controlling the voltage controller 400 is set to A central controller 800 that controls to prevent overcharging of the capacitor module 600 and smartly controls the lighting and turning off of the lamp 10 by setting the lighting time, voltage and dimming of the photovoltaic module, respectively and; It is characterized by including a second DC/DC converter 900 that receives the electrical energy stored in the capacitor module 600 and converts it into a voltage required by the lamp by boosting or stepping it down in a buck-boost manner. To provide a voltage-controlled solar and wind power street light device using a supercapacitor.

In addition, the connector 300 is characterized in that it is configured to be limited to any one of the photovoltaic module 100 and the wind power generation means 200 or to be connected to all of them according to the average solar radiation and wind power of the installation place. .

In addition, the connector 300 is characterized in that a reverse current prevention diode 330 is further provided to prevent reverse current.

In addition, the voltage controller 400 sets the voltage value input through the connector 300 according to the fully charged voltage value set by the central controller 800 within the desired full charged voltage value in the battery module 600. It is controlled in, characterized in that the voltage is controlled so that the input voltage of the connector 300 is cut off when it exceeds the full charge voltage value.

In addition, in the capacitor module protector 500, the full charge voltage value, overcharge voltage value, end voltage value, overdischarge voltage value, and overdischarge current value of each of the supercapacitor cells are set in advance, and the preset voltage value and comparing and analyzing the current value and the current voltage and current detected in each of the supercapacitor cells to prevent overcharging and overdischarging of each cell, and to monitor and protect the amount of charge and discharge.

In addition, the capacitor module 600 is a lithium-ion capacitor (Lithium-Ion Capacitor, LIC or hybrid capacitor) or an electric double layer capacitor (Electric Double Layer Capacitor, EDLC) consisting of a plurality of super capacitor cells (super capacitor cell, 610 ) is characterized in that it is modularized and configured.

In addition, the central controller 800 is configured with a secondary power supply means 805 composed of a secondary battery or a capacitor so that the electricity generated by the photovoltaic module 100 is stored, and the DC/DC converter 700 operates during the daytime. It is operated by the auxiliary power means 805 together with the voltage supplied from, and at night, while using the electric energy stored in the capacitor module 600, the power supply to the lamp 10 is managed to continuously operate the street light device day and night. It is characterized by controlling.

In addition, the central controller 800 includes a time setting unit 810 that sets the lighting time of the lamp 10 to be adjusted, and turns on and off the lamp according to the voltage generated by the photovoltaic module 100. Dimming for adjusting the brightness of the lamp 10 in the case of late night time in conjunction with the voltage setting unit 820 and the time setting unit 810 to set the solar turn-on voltage and the solar turn-off voltage, respectively, to determine It is characterized in that it includes a dimming setting unit 830 for setting a value.

In addition, the voltage setting unit 820 is configured to differentiate the solar lighting voltage and solar photovoltaic power generation voltage of the photovoltaic power generation module 100 required to turn on and off lighting fixtures according to the average amount of solar radiation and the amount of sunlight at the installation location. It is characterized in that it is a selector that sets equal voltage to a plurality of cases.

In addition, the central controller 800 tests and checks whether the lighting fixtures normally operate through the time setting unit 810, the voltage setting unit 820, and the dimming setting unit 830 at regular time intervals through user manipulation. TEST S/W (840), and lamps of distinct colors blink or light up to indicate whether or not the lighting fixtures are normally operating according to the operation of the TEST S/W (840), and the dimming setting unit A TEST RAMP 850 for dimming the brightness of the lamp during the time when the brightness of the lamp 10 is dimmed according to step 830 is characterized in that it is further included.

In addition, in the voltage-controlled solar and wind power street lamp device using the supercapacitor, the second DC/DC converter adjusts the brightness of the lamp to a dimming value set through the dimming setting unit 830 of the central controller 800. It is characterized in that it further comprises a dimmer controller (dimmer controller, 1000) for step-down control of the output voltage of (900).

The voltage-controlled solar and wind power street light device using the supercapacitor according to the present invention,

First, it is configured to be limited to any one of the photovoltaic power generation module and the wind power generation means or to be connected to both according to the average solar radiation and wind power of the installation place through the connector, so that the place is restricted compared to conventional streetlights composed only of sunlight. It has the effect of maximizing the power generation efficiency and the output of lighting fixtures even in urban areas or in the shadows of mountains.

Second, the input voltage is cut off and controlled to prevent overcharging of the capacitor module according to the voltage value input from the connector in a voltage control method through the voltage controller, thereby controlling the conventional voltage and current at the same time, thereby reducing the charging efficiency by half. Compared to the current control method, the structure of the control circuit can be configured more simply, and the rapid charging speed of the capacitor module can be increased, and through this, the size of the photovoltaic power generation module and the capacitor module can be reduced. has the effect of relieving the constraints of

Third, overcharge and overdischarge are prevented while matching the voltages of the plurality of supercapacitor cells configured in the capacitor module through the capacitor module protector, and by returning to a preset voltage value to perform cell balance work, the voltage controller By controlling the voltage of the entire battery module through the power supply and at the same time controlling the cell balance of each supercapacitor cell, the protection performance of the battery module is improved to prevent damage to the cell due to the voltage difference between cells and the life span of the battery module. has the effect of prolonging

Fourth, turning on and off and adjusting the brightness of the lighting fixtures according to the preset time, the voltage of the photovoltaic module, and the dimming value through the central controller and the dimmer controller having a time setting unit, a voltage setting unit, and a dimming setting unit, thereby controlling the time setting. It is possible to control the luminaire more smartly than the conventional solar street lamp configured to be limited, and thus there is an effect of preventing unnecessary power consumption.

1 is a view showing a solar street light control system using a capacitor according to the prior art
2 is a block diagram showing the overall technical configuration of an embodiment of a voltage-controlled solar and wind power street lamp device using a supercapacitor according to the present invention.
3 is a view showing a selector as an example of a voltage setting unit configured in the central controller of FIG. 2;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings, and even if the same numerals as in the prior art are indicated The prior art should be interpreted as such. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description will be omitted.

As shown in FIGS. 2 and 3, the voltage-controlled solar and wind power street light device using a supercapacitor according to the present invention includes a photovoltaic module 100, a wind power generator 200, a connector 300, a voltage controller ( 400), capacitor module protector 500, capacitor module 600, first DC/DC converter 700, central controller 800, second DC/DC converter 900 and dimmer controller 1000 made including

As shown in FIG. 2, the photovoltaic module 100 is a solar cell and is a means for generating solar energy by generating electrical energy for the load-side lighting fixture 10 to operate at night. It has a power generation capacity so that solar power generation is possible with 1.2 to 2 times the maximum power consumption of (10).

As shown in FIG. 2 , the wind power generating means 200 is a means for generating wind energy for the load-side lamp 10 to operate at night, and is installed on a post of a street light.

Here, the wind power generating means 200 may be installed on a post of a street light in any one of a vertical type (VRF, VRD) or a horizontal type (HRF), or a combination of vertical and horizontal types.

As shown in FIG. 2, the connector 300 is connected to the generated electricity generated by the photovoltaic module 100 and the wind power generation means 200, and prevents voltage collisions caused by voltage differences between the respective generators. A connection terminal 310 and a voltage converter 320 are respectively provided to convert the voltage in order to do so. The connection terminal 310 is a connection means connected to each of the photovoltaic power generation module 100 and the wind power generation means 200, and the voltage converter 320 is used to prevent a voltage collision due to a voltage difference between each generated electricity. It is configured for the purpose of converting voltage for

Here, the connector 300 is configured to be limited to any one of the photovoltaic module 100 and the wind power generator 200 or to be connected to all of them according to the average amount of solar radiation and wind power of the installation place. This is to maximize the power generation efficiency according to the situation of the installation place. By producing electrical energy with wind power generation along with photovoltaic power generation, it is possible to increase power generation efficiency while relieving restrictions on the installation place compared to existing solar streetlights.

On the other hand, the connector 300 is connected to the photovoltaic module 100 during the daytime and connected to the wind power generator 200 at night according to the control of the central controller 800 to be described later, or the photovoltaic module 100 ) When the voltage of the generator falls below a predetermined value, it can be controlled to smartly produce electricity by being connected to the wind power generator 200.

In addition, the connector 300 is further provided with a reverse current prevention diode 330 to prevent reverse current, which is a rectification diode by bonding a PN type in a single crystal of silicon or germanium to an anode on the P type side, The N-type side is composed of two terminals of the cathode, and current flows in forward connection and does not flow in reverse connection. In the present invention, the current input to the connector 300 is reverse, that is, the photovoltaic module ) and the wind power generation means 200 do not flow.

As shown in FIG. 2, the voltage controller 400 is connected to the connector 300 and blocks the input voltage according to the input voltage value under the control of the central controller 800 to prevent overcharging of the capacitor module. is a means of

In other words, the voltage controller 400 sets the voltage value input through the connector 300 according to the fully charged voltage value set by the central controller 800 within the desired full charged voltage value in the capacitor module 600. It is controlled in, and when it exceeds the full charge voltage value, the voltage is controlled so that the input voltage of the connector 300 is cut off.

Here, the reason for configuring the voltage control method of the capacitor module through the voltage controller 400 is to regulate the voltage and current of the capacitor through the voltage current controller in the case of a solar street lamp according to the prior art, as described above in the background art. However, due to the nature of photovoltaic power generation, a rapid voltage fluctuation and a large amplitude of current change occur according to the amount of sunlight and solar radiation. Controlling the voltage and current prevents rapid charging of the capacitor and causes voltage imbalance between each cell composed of the capacitor. Since there is a problem to do, it is configured to solve this problem. That is, compared to the conventional voltage and current control method, which has the opposite effect of halving the charging efficiency by simultaneously controlling the voltage and current, the structure of the control circuit can be configured more simply and the rapid charging speed of the capacitor module can be increased. This is to create an economic effect that can reduce the size of photovoltaic power generation modules and capacitor modules.

As shown in FIG. 2, the capacitor module protector 500 is connected to the voltage controller 400, detects the voltage and current of each of the plurality of supercapacitor cells configured in the capacitor module, and controls the voltage of each cell using a MOSFET. It is a means for preventing overcharge and overdischarge while matching, and performing cell balance work by returning to a preset voltage value.

To this end, the capacitor module protector 500 sets the full charge voltage value, overcharge voltage value, end voltage value, overdischarge voltage value, and overdischarge current value of each of the supercapacitor cells in advance, and sets the voltage value and The current value and the current voltage and current detected in each of the supercapacitor cells are compared and analyzed to prevent overcharging and overdischarging of each cell, and to monitor and protect the amount of charge and discharge.

Here, the reason why the capacitor module protector 500 is configured is to prevent overcharge and overdischarge while matching the voltages of a plurality of supercapacitor cells configured in the capacitor module, and to restore the voltage to a predetermined voltage value to perform cell balance work By performing, as well as controlling the voltage of the entire battery module through the voltage controller, cell balance control of each supercapacitor cell is also performed to improve the protection performance of the battery module, resulting in damage to the cell due to the voltage difference between the cells. This is to prevent and extend the life of the battery module.

As shown in FIG. 2, the storage module 600 stores the electricity generated by the photovoltaic module 100 and the wind power generator 200 to provide electricity to the lamp 10, and super-fast charging is performed. A plurality of possible supercapacitor cells (610) are connected in series, parallel, series or parallel, and the overall voltage and balance of each cell are controlled through the voltage controller 400 and the capacitor module protector 500 It is a means of storing electrical energy.

Here, the capacitor module 600 refers to an assembly of cells for storing physical energy of a different concept from a secondary battery that chemically stores electricity, and is a lithium-ion capacitor (Lithium-Ion Capacitor, LIC or hybrid capacitor). ) or a plurality of super capacitor cells (610) made of electric double layer capacitors (Electric Double Layer Capacitors, EDLC) are modularized and configured.

A Lithium-Ion Capacitor (LIC) is a super capacitor. The (-) pole is lithium-intercalated (or doped) activated carbon or graphite, like a lithium-ion battery, and the (+) pole Like the silver electric double layer capacitor (EDLC), it is activated carbon, and lithium salt is dissolved in the electrolyte, like the lithium-ion storage battery. That is, it is also called a hybrid capacitor by combining the advantages of a lithium-ion storage battery and an electric double layer capacitor (EDLC). Accordingly, while maintaining the traditional characteristics of capacitors (fast charge/discharge, high durability, safety, and environmental friendliness), there is an advantage in that the core characteristics of a storage battery (high voltage and high energy) can be exhibited.

An Electric Double Layer Capacitor (EDLC) is a super capacitor that stores electrical energy by the Faraday effect caused by the movement of electrons between an electrode and an electrolyte. At the interface between the electrode and the electrolyte, The method using the Helmholtz double layer of the method has the advantage of enabling rapid charging and long charge and discharge life.

Meanwhile, the capacitor module 600 may be built into the capacitor module control box 20 together with the capacitor module protector 500 .

As shown in FIG. 2, the first DC/DC converter 700 receives the output voltages of the connector 300, the voltage controller 400, and the capacitor module protector 500, and uses a buck-boost method. It is a means to boost or step down the voltage and supply it to the central controller.

As shown in FIG. 2, the central controller 800 is operated with the voltage supplied from the DC/DC converter 700, and during the daytime, the electricity generated by the photovoltaic module 100 is stored, and the voltage controller 400 ) is set to prevent overcharging of the battery module 600 by setting a fully charged voltage value to control, and lighting time, voltage of the photovoltaic module and dimming are set, respectively, to It is a means to smartly control the turning on and off.

Here, the central controller 800 is configured with a secondary power supply means 805 composed of a secondary battery or a capacitor so that the electricity generated by the photovoltaic module 100 is stored, and the DC/DC converter 700 during the daytime It is operated by the auxiliary power means 805 together with the supplied voltage and manages the power supply to the lamp 10 while using the electric energy stored in the capacitor module 600 at night to continuously operate the street light device day and night. Control.

In addition, the central controller 800 includes a time setting unit 810 that sets the lighting time of the lighting fixtures 10, and turns on and off the lighting fixtures according to the voltage generated by the photovoltaic module 100. and a voltage setting unit 820 for setting the solar power-on voltage and the solar power-off voltage to be determined.

The time setting unit 810 sets the turn-on/turn-off time of the lighting in consideration of the sunrise/sunset time according to the season and the characteristics of the installation location such as downtown/mountain/park, etc., and sets the late-night time for adjusting the brightness of the lighting. As one, the manager can change the setting during installation and maintenance of the street light.

The voltage setting unit 820 sets the solar lighting voltage and solar lighting off voltage to differentiate the electric voltage generated by the photovoltaic power generation module 100 required for turning on and off the lighting fixtures according to the average amount of solar radiation and the amount of sunlight at the installation location. As a selector set to a plurality of cases, FIG. 3 shows an example of a voltage setting selector. Therefore, the manager sets one of the selectors according to the installation place and season so that the lighting fixture is turned on and off according to the voltage.

Here, the time setting unit 810 and the voltage setting unit 820 may be configured as a circuit to control turning on and off of the lamp when both of them are satisfied, or to control turning on and off even when only one is satisfied.

In addition, the central controller 800 includes a dimming setting unit 830 that is interlocked with the time setting unit 810 to set a dimming value for adjusting the brightness of the lamp 10 in the case of late night time. This is to set a voltage value supplied to the lighting fixture 10 through a dimmer controller 1000 to be described later, that is, a voltage step-down to lower the brightness of the lighting fixture 10 than usual.

In addition, the central controller 800 tests and checks the normal operation of the lamp through the time setting unit 810, the voltage setting unit 820, and the dimming setting unit 830 at regular time intervals by user manipulation. TEST S/W (840) and, according to the operation of the TEST S/W (840), lamps of distinct colors flash or light up to indicate whether or not the lamp is normally operating, and the dimming setting unit ( During the time when the brightness of the lamp 10 is dimmed according to step 830, a TEST RAMP 850 for dimming the brightness of the lamp is further included.

In other words, the TEST S/W (840) and the TEST RAMP (850) allow the administrator to more easily test, check, and check whether the lamp control function of the street light device is operating normally without carrying a separate test equipment or tester. As an inspection means, it is possible to easily check the control circuit related to the control of the lighting fixtures regardless of whether or not the lighting fixtures are coupled before installing the streetlight device on the site.

As shown in FIG. 2, the second DC/DC converter 900 receives the electrical energy stored in the capacitor module 600 and steps it up or down in a buck-boost method to produce a voltage required by the lamp. It is a means of converting

In other words, the second DC/DC converter 900 is connected to the capacitor module protector 500 that controls each cell of the capacitor module 600, regardless of the voltage variation of the output voltage of the capacitor module protector 500. As a buck booster converter that allows you to set the voltage of the lighting fixture, it controls the input voltage and current of the lighting fixture to minimize brightness as well as heat generation, thereby extending the lifespan of the LED lamp configured in the lighting fixture, thereby reducing the weight of the heat dissipation means of the lighting fixture. has the effect of reducing it.

As shown in FIG. 2, a dimmer controller (1000) is the second DC/DC converter (900) so that the brightness of the lamp is adjusted to the dimming value set through the dimming setting unit 830 of the central controller 800. ) as a step-down control means for controlling the output voltage of the light fixture 10 in conjunction with the time setting unit 810 to control the brightness of the lamp 10 to a dimming value in the case of late-night hours.

Therefore, the voltage-controlled photovoltaic and wind power street light device using a supercapacitor according to the present invention is limited to any one of the photovoltaic power generation module and wind power generation means or connected to all of them according to the average solar radiation and wind power of the installation site through the first connector. By being configured to enable this, there is an effect of maximizing the power generation efficiency and the output of the luminaire even in a city center or a shaded area in the mountains because there is no place restriction compared to a conventional street light composed only of sunlight.

Second, the input voltage is cut off and controlled to prevent overcharging of the capacitor module according to the voltage value input from the connector in a voltage control method through the voltage controller, thereby controlling the conventional voltage and current at the same time, thereby reducing the charging efficiency by half. Compared to the current control method, the structure of the control circuit can be configured more simply, and the rapid charging speed of the capacitor module can be increased, and through this, the size of the photovoltaic power generation module and the capacitor module can be reduced. has the effect of relieving the constraints of

Third, overcharge and overdischarge are prevented while matching the voltages of the plurality of supercapacitor cells configured in the capacitor module through the capacitor module protector, and by returning to a preset voltage value to perform cell balance work, the voltage controller By controlling the voltage of the entire battery module through the power supply and at the same time controlling the cell balance of each supercapacitor cell, the protection performance of the battery module is improved to prevent damage to the cell due to the voltage difference between cells and the life span of the battery module. has the effect of prolonging

Fourth, turning on and off and adjusting the brightness of the lighting fixtures according to the preset time, the voltage of the photovoltaic module, and the dimming value through the central controller and the dimmer controller having a time setting unit, a voltage setting unit, and a dimming setting unit, thereby controlling the time setting. It is possible to control the luminaire more smartly than the conventional solar street lamp configured to be limited, and thus there is an effect of preventing unnecessary power consumption.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: luminaire
20: capacitor module control box
100: solar power generation module 200: wind power generation means
300: connector 310: connector
320: voltage converter
330: reverse current prevention diode 400: voltage controller
500: capacitor module protector 600: capacitor module
610: supercapacitor cell 700: first DC / DC converter
800: central controller 810: time setting unit
820: voltage setting unit 830: dimming setting unit
840: TEST S/W 850: TEST RAMP
900: second DC / DC converter 1000: dimmer controller

Claims (11)

A photovoltaic power generation module 100 installed on a post of a street light and having a power generation capacity so as to enable solar power generation by 1.2 to 2 times the maximum power consumption of the load-side lamp 10;
a wind power generator 200 installed on a post of a street light and generating wind power to provide generated electricity to the load-side lamp 10;
The power generation module 100 and the wind power generation means 200 are connected to each other, and the connection terminal 310 converts the voltage to prevent a voltage collision caused by a voltage difference between the generators, and connectors 300 each having a voltage converter 320;
a voltage controller 400 connected to the connector 300 and blocking an input voltage under the control of a central controller to prevent overcharging of the capacitor module according to an input voltage value;
It is connected to the voltage controller 400, detects the voltage and current of each of the plurality of supercapacitor cells configured in the capacitor module, and uses a MOSFET to match the voltage of each cell to prevent overcharge and overdischarge, and a preset voltage value a capacitor module protector 500 that returns to a cell balance to perform a cell balance operation;
A plurality of supercapacitor cells (610) that store electricity generated by each of the photovoltaic module 100 and the wind power generator 200 to provide electricity generated to the lamp 10 and can be charged super-quickly a capacitor module 600 connected in series, parallel, or series/parallel to control the overall voltage and balance of each cell through the voltage controller 400 and the capacitor module protector 500;
A first DC/DC converter that receives the output voltage of each of the connector 300, the voltage controller 400, and the capacitor module protector 500, boosts or steps it down in a buck-boost method, and supplies it to the central controller ( 700) and;
While operated with the voltage supplied from the first DC/DC converter 700, electricity generated by the photovoltaic module 100 is stored during the daytime, and a full charge voltage value for controlling the voltage controller 400 is set. A central controller ( 800) and;
A second DC/DC converter 900 receiving the electrical energy stored in the capacitor module 600 and converting it into a voltage required by the lamp by boosting or stepping it down in a buck-boost manner;
The connector 300,
Depending on the average solar radiation and wind power of the installation place, it is configured to be limited to any one of the photovoltaic power generation module 100 and the wind power generation means 200 or to be accessible to both, and during the daytime according to the control of the central controller 800 Connected to the photovoltaic module 100 and connected to the wind power generator 200 at night or connected to the wind power generator 200 when the voltage generated by the photovoltaic module 100 falls below a preset value make it happen,
The voltage controller 400,
The voltage value input through the connector 300 is controlled within the desired full charge voltage value in the capacitor module 600 according to the fully charged voltage value set by the central controller 800 and exceeds the full charged voltage value. If so, the voltage is controlled so that the input voltage of the connector 300 is blocked,
The capacitor module protector 500,
The full charge voltage value, overcharge voltage value, end voltage value, overdischarge voltage value, and overdischarge current value of each of the supercapacitor cells are set in advance, and the preset voltage and current values are detected in each of the supercapacitor cells A voltage-controlled solar and wind power street light device using a supercapacitor, characterized in that the current voltage and current are compared and analyzed to prevent overcharge and overdischarge of each cell, and to monitor and protect the amount of charge and discharge.
delete delete delete delete delete According to claim 1,
The central controller 800,
A backup power means 805 composed of a secondary battery or a capacitor is configured to store electricity generated by the photovoltaic power generation module 100, and during the daytime, the backup power supply means 805 is provided together with the voltage supplied from the first DC/DC converter 700. It is operated by the power means 805 and manages the power supply to the lamp 10 while using the electric energy stored in the capacitor module 600 at night to continuously control the operation of the street light device during the day and night. Voltage-controlled solar and wind street light devices using capacitors.
According to claim 1,
The central controller 800,
A time setting unit 810 for setting the lighting time of the lamp 10 to be adjusted;
A voltage setting unit 820 for setting a solar light-on voltage and a solar light-off voltage, respectively, to determine whether to turn on or off a lamp according to the voltage generated by the photovoltaic power generation module 100;
A voltage-controlled solar system using a supercapacitor, characterized in that it includes a dimming setting unit 830 interlocked with the time setting unit 810 to set a dimming value for adjusting the brightness of the lamp 10 in the case of late night time. Light and wind street lighting devices.
delete delete According to claim 8,
The voltage-controlled solar and wind power street light device using the supercapacitor,
A dimmer controller (1000) step-down-controls the output voltage of the second DC/DC converter (900) so that the brightness of the lamp is adjusted to the dimming value set through the dimming setting unit (830) of the central controller (800) ) Voltage-controlled solar and wind power street lighting device using a supercapacitor, characterized in that it further comprises.

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