KR20120058794A - Optimal Landscape Light System and Method - Google Patents

Abstract

PURPOSE: An optimal landscape lighting system and method are provided to supply optimal scene lighting power by determining power consumption and states of a storage battery according to generated output of the sunlight in real time. CONSTITUTION: A storage battery(30) charges DC electrical energy generated from a solar power generation part. A common power supply part(10) houses power provided from a power grid through a transmission line. A power control device(40) controls power supply provided from the storage battery or the common power supply part. The power control device monitors a load use amount and load use time in real time. A lighting part(50) includes a lamp for AC or DC for lighting a scene.

Description

Optimal Landscape Light System and Method using Renewable Energy

The present invention relates to an optimal landscape lighting system and method using renewable energy, in particular, solar light providing the optimal charging power in connection with the number of days of relief, the required power per day, the optimal photovoltaic power generation conditions, the sunshine time, etc. An optimal landscape lighting system and method using power generation.

Recently, landscape lighting is installed and used to illuminate the exterior of a landscape facility or building at night.

Such landscape lighting is installed in various ways depending on the intended lighting effect, such as ground lighting, which is installed on the ground to illuminate the ground, underground light buried in the ground, lighting to illuminate the building.

In addition, there is a serious problem of global warming due to the depletion of fossil fuels and the generation of carbon dioxide, and the active development and utilization of alternative energy is an urgent challenge. As such landscape lighting is heavily dependent on thermal power generation using petroleum, coal, etc. according to the conventional electricity production method, it is possible to use infinitely in producing electricity for landscape lighting, etc. There is a need to actively use renewable energy such as wind power.

As described above, an example of a landscape lighting system technology using a solar cell module is disclosed in Document 1 below.

1 is a block diagram illustrating a landscape lighting system disclosed in Document 1 below.

The landscape lighting system shown in FIG. 1 includes a main lighting unit 100 and a plurality of local lighting units 20, and the main lighting unit 100 wirelessly controls the local lighting unit 200.

The main lighting unit includes a main lamp 120, a human body sensor 131, an illumination sensor 133, a timer 135, a communication unit 137, a main control unit 141 and a power supply unit 150, the main The lamp 120 is an array of a plurality of light emitting diodes 121 that can illuminate a large area but low power consumption, the timer 135 sets the driving time band of the main lamp 120, the communication unit 137 Is configured to perform communication in a Zigbee wireless communication scheme. On the other hand, the power supply unit 150 converts the electrical energy generated from the solar cell module 152 into a voltage required to drive the driving element 110 through the DC / DC converter 154, and charges the converted voltage 156 is provided.

In addition, the main controller 141 is a main driving mode for lighting only the main lamp 120 alone using a signal output from the human body sensor 131, the illumination sensor 133, and the timer 135, or a local lamp 220. It is determined whether the driving mode is a local driving mode to drive the main lamp 120 on / off, and wirelessly control the local lighting unit 200 through the communication unit 137. In addition, the local lighting unit 200 includes a local lighting lamp 220, the receiving unit 231, the local control unit 233 and the power supply unit 250, the power supply unit 250 is the electricity generated from the solar cell module 252 It is configured to charge energy to the battery 256 and supply it to the driving element 210.

The light emitting diode 221 is also applied to the local lighting 220, and the local controller 233 drives the local lighting 220 according to the wireless control signal received through the receiving unit 231.

The lighting unit of this structure charges electrical energy by the solar cell modules 152 and 252 during the day, and drives the light emitting diode 221 according to the control signal received from the main control unit 141 at night.

However, in the technique disclosed in Document 1, since only the solar cell modules 152 and 252 are charged, there is a problem in that the charging cannot be sufficiently made depending on the weather condition.

In addition, in the related art disclosed in the above-mentioned documents, the problem of efficiency with respect to charging time, for example, the optimum conditions for the number of days of uneven relief, the required power, the optimal solar power generation conditions, the sunshine time, etc. Since it is not considered, there was a problem that efficient landscape lighting was not possible.

In addition, the conventional technology does not evaluate the state of the power consumption and the state of the storage battery by the power supplied in real time from the existing power line and the power generated from the photovoltaic power generation and the load, it is possible to execute efficient landscape lighting regardless of the weather. There was no problem.

[Document 1] Korean Unexamined Patent Publication No. 2010-0057289 (published May 31, 2010)

An object of the present invention has been made to solve the problems described above, the optimum using renewable energy that can execute the landscape lighting in the optimal conditions for the number of days of relief, the required power per day, optimal solar power generation conditions, sunshine time, etc. It is to provide a landscape lighting system and method.

It is another object of the present invention to provide an optimal landscape lighting system and method using renewable energy that can execute optimal landscape lighting by judging the power consumption of a commercial power supply and solar power generation power and the state of a storage battery in real time. will be.

In order to achieve the above object, the optimal landscape lighting system according to the present invention is an optimal landscape lighting system for optimally controlling landscape lighting by using solar power, and a battery and a power grid for charging DC electric energy generated by the solar power generation unit. And a commercial power supply unit for receiving electric power supplied from a power transmission line from the power supply unit, a power control device for controlling the supply of electric power supplied from the storage battery or the commercial power supply unit, and an illumination unit having an AC lamp or a DC lamp for the landscape lighting. The power control device monitors the load usage time and the load usage time in real time according to the state of charge of the capacitor and the state of the power supplied from the solar power generation unit or the commercial power supply unit, and the load usage time and the load usage time of the battery are measured. When the charging capacity is exceeded, the power supply to the commercial power supply unit Characterized in that the running light.

In addition, in the optimal landscape lighting system according to the present invention, the power control device checks the state of charge of the battery, and outputs a state of charge, the charge monitoring unit, according to the state of charge of the storage battery transmitted from the charge monitoring unit A power control unit for determining whether a power supply unit is applied, an operating state of the DC / AC hybrid control unit for controlling the on / off of the AC lamp or the DC lamp under the control of the power control unit, and the operating state of the DC / AC hybrid control unit. And a monitoring unit for displaying a state of production power of the photovoltaic unit and a state of charge of the storage battery.

In addition, the optimal landscape lighting system according to the present invention, characterized in that it further comprises a power monitoring server for managing information on the power consumption from the solar power generation unit or commercial power supply unit and the power consumption of the lighting unit by time and season. do.

In addition, in order to achieve the above object, the optimal landscape lighting method according to the present invention is a method of optimally controlling the landscape lighting by using solar power generation, (a) calculating the daily load demand of the installed landscape lighting, (b Calculating the amount of photovoltaic power generation required per day in consideration of the output loss in the load amount calculated in step (a), (c) selecting a photovoltaic module according to the amount of power calculated in step (b), (d) selecting the battery according to the battery voltage, the number of days of relief and the battery discharge voltage according to the amount of power calculated in step (b); and (e) by the power charged in the battery selected in step (d). And executing the landscape lighting.

In the optimal landscape lighting method according to the present invention, (f) monitoring the load usage and load usage time in real time, and when the load usage and load usage time exceeds the charging capacity of the storage battery, the landscape lighting with commercial power; It further comprises the step of executing.

In the optimal landscape lighting method according to the present invention, (e) landscape lighting execution in the step (d) is performed by a DC lamp, and landscape lighting execution in step (f) is performed by an AC lamp. It is characterized in that the execution.

In the optimal landscape lighting method according to the present invention, the daily load demand in the step (a) and the amount of photovoltaic power generation required in the day in the step (b) and the landscape lighting time in the step (e) It is characterized by being calculated differently according to the season.

As described above, according to the optimal landscape lighting system and method according to the present invention, it is possible to supply the optimal landscape lighting power by detecting the number of days of relief, the required power per day, the optimal solar power generation conditions, the sunshine time in real time. Obtained.

In addition, according to the optimal landscape lighting system and method according to the present invention, since the installation of the landscape lighting device according to the number of days of relief, the required power per day, the optimal photovoltaic power generation conditions, it is possible to achieve the optimal landscape lighting at a minimum cost Is also obtained.

1 is a block diagram showing a conventional landscape lighting system,
2 is a block diagram of an optimal landscape lighting system according to the present invention;
3 is a configuration diagram of the power control device shown in FIG.
4 is a process chart for explaining a process of setting an optimal landscape lighting according to the present invention;
5 is a flowchart illustrating an optimal landscape lighting method according to the present invention.

These and other objects and novel features of the present invention will become more apparent from the description of the present specification and the accompanying drawings.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention is demonstrated according to drawing.

2 is a block diagram of the optimal landscape lighting system according to the present invention, Figure 3 is a block diagram of the power control device shown in FIG.

As shown in FIG. 2, the optimal landscape lighting system according to the present invention includes a commercial power supply unit 10 for receiving electric power supplied from a power grid through a power transmission line, a sun installed on a roof of an outdoor exhibition, a building, or the like. Supply of power supplied from the photovoltaic unit 20 having a battery panel, the storage battery 30 for charging the direct current electrical energy generated by the photovoltaic unit 20, the storage battery 30 or the commercial power supply unit 10 Power control device 40 for controlling the lighting unit 50 having an AC lamp 51 or a DC lamp 52 for lighting the landscape, the commercial power source 10 or solar power generation by time and season It includes a power monitoring server 60 for managing information about the power supply from the unit 20 and the power consumption of the lighting unit 50.

The commercial power supply unit 10 is connected to a switchboard of a building or the like through a connection cable and a connection connector in order to receive electricity from the power grid when the solar power generation unit 20 is not sufficiently generated due to bad weather. do. This power grid is a commercial power system consisting of a number of power generation facilities for generating grid power, and is connected to ordinary power plants such as thermal power plants, nuclear power plants, wind power generation facilities, hydro power generation facilities, and solar power generation facilities installed in addition to customers.

In the solar power generation unit 20, the type of condensing may be applied in a fixed or movable manner so as to be set in a direction and an angle that can produce maximum efficiency, and according to the installation conditions of outdoor exhibits, buildings, rooftops, It can be installed on the roof or in a separate location. In addition, a solar cell panel is a device that collects energy from the sun and converts it into electricity. For example, when solar light is irradiated to a solar cell composed of a semiconductor junction, an electron-hole pair is generated by light energy, and the electron and the hole are moved to n. The electromotive force is generated by the photovoltaic effect of the current flowing across the layer and the p layer to produce electricity according to the principle that the current flows to an externally connected load.

As shown in FIG. 3, the power control device 40 checks the state of charge of the battery 30 and transmits the charge monitoring unit 41 and the charge monitoring unit 41 to output the charging state. The power control unit 42 determines whether the commercial power supply unit 10 is applied according to the state of charge of the storage battery 30, and the AC lamp 51 or the DC lamp 52 under the control of the power control unit 42. The operating state of the DC / AC hybrid control unit 43 and the DC / AC hybrid control unit 43 for controlling the on / off, the state of the production power of the photovoltaic unit 20 and the state of charge of the storage battery 30 It includes a monitoring unit 44 for displaying, and transmits and receives the system information and history information with the power monitoring server 60.

The charge monitoring unit 41 checks the state of charge of the battery 30 according to the power supplied from the photovoltaic unit 20, and outputs the state information to the power control unit 42.

The power control unit 42 controls the power to be supplied to the lighting unit 50 via the DC / AC hybrid control unit 43 according to the state of charge of the storage battery 30 received from the charge monitoring unit 41. That is, the power control unit 42 inspects the power generation state of the solar power generation unit 20 and the charge state of the storage battery 30 received from the charge monitoring unit 41 to check the DC lamp 52 of the lighting unit 50. When satisfying the power to turn on, control to use the power supplied from the rechargeable battery 30, and when the power charged in the rechargeable battery 30 does not turn on the DC lamp 52, the commercial power supply unit 10 It controls to drive the AC lamp 51 using the power supply supplied. To this end, the power control unit 42 executes data communication with the power monitoring server 60.

The DC / AC hybrid controller 43 drives the AC lamp 51 or the DC lamp 52 according to the control signal from the power controller 42.

The monitoring unit 44 is mounted in a room such as a building, and may be made of a well pad as a general LCD or LED panel, and may be used in conjunction with a monitor of a user's computer system.

As the AC lamp 51, a metal halide lamp, a high intensity discharge lamp, and the like are used. As the DC lamp 52, an LED dimmer and the like can be used.

Meanwhile, the power monitoring server 60 may include a central processing unit (CPU), a random access memory (RAM), a ROM (Read Only Memory) in which a program for controlling the power control device 40 is stored, and power. And an interface and a database for data communication with the control device 40. The CPU executes processing in accordance with a program stored in advance in the ROM, and the RAM temporarily stores data when the CPU executes arithmetic processing. The database includes power supply from each power supply and power consumption of the lighting unit 50. Information on external factors that affect and the state of charge of the battery 30, the amount of power used, the power consumption and power generation capability over time and season are stored.

In addition, since the electrical connection method of each component shown in Figs. 2 and 3 can be easily realized by a conventional power distribution system, a detailed description thereof will be omitted.

Next, the installation process of the optimum landscape lighting system according to FIG.

4 is a flowchart illustrating a process of setting an optimal landscape lighting according to the present invention.

First, a daily load demand amount of landscape lighting installed in an outdoor exhibition hall or a building is calculated (S10). This calculation can be easily performed by the capacity and number of the DC lamps 52 to be installed. In the following description, for convenience of explanation, the daily load demand is 1.5 KW.

Next, the amount of photovoltaic power generation required for one day is calculated in consideration of the output loss to the load calculated in step S10 (S20). This is performed by the following equation.

1 day power x output loss correction ÷ average sunshine time.

That is, for example, it is calculated as 1.5 KW × 1.2 ÷ 3.5hr = 514.29W.

Subsequently, a photovoltaic module is selected according to the amount of power calculated in step S20 (S30). According to the above example, two solar modules are required, such as 600W.

Next, the battery is selected in consideration of the battery voltage, the number of days of relief and the battery discharge voltage according to the power generation amount calculated in the step S20 (S40). This is according to the following equations 2 and 3.

Daily power consumption = Daily power generation ÷ Battery voltage ... Equation 2

Battery capacity = 1 day current consumption × number of relief days × battery discharge correction ... Equation 3

Therefore, according to the above example, the daily power consumption is 75Ahr, which is the daily power consumption (1.5KW × 1.2 = 1800W) divided by the battery voltage 24V.

For example, when the number of relief days is 2 days and the battery discharge correction value is 1.25, the capacity of the battery is preferably 75 × 2 × 1.25 = 187.5, and the storage battery 30 is preferably 200 Ah.

On the other hand, when the number of relief days is 3 days and the battery discharge correction value is 1.25, the capacity of the battery is 75 x 3 x 1.25 = 281.25, so it is preferable to use three storage batteries 30 having about 100 Ahr.

As described above, in the optimal landscape lighting system according to the present invention, the solar module is selected according to the power generation capacity of the solar power generation unit 20, and the storage battery 30 is selected and installed (S50).

Next, an optimal landscape lighting method will be described with reference to FIG. 5.

5 is a flowchart illustrating an optimal landscape lighting method according to the present invention.

When the switch of the landscape lighting system is ON, power is generated in each solar cell of the photovoltaic unit 20 according to the generation of normal renewable energy (S100), and the generated power is stored in the storage battery 30. ) And is monitored by the charge monitoring unit 41 (S101). In addition, the charge monitoring unit 41 checks the amount of charge of the storage battery 30 by the generated power (S102). This inspection is in real time. That is, monitoring the load usage and the load usage time of the lighting unit 50 in real time is the landscape lighting with the commercial power supply unit 10 when the load usage and load usage time of the lighting unit 50 exceeds the charging capacity of the storage battery 30. To run

If it is determined in step S102 that charging to the storage battery 30 is performed by the charging monitoring unit 41, charging to the storage battery 30 is continued (S103).

On the other hand, when the solar power generation is not made due to the weather or the like in step S101, or charging to the storage battery 30 is not performed in step S102, the control proceeds to step S104 to use the power of the commercial power supply unit 10.

At this time, the power generation capability in the solar power generation unit 20 and the state of charge in the storage battery 30 is displayed on the monitoring unit 44. This display is used to monitor the power generated by the solar power generation unit 20 and the power consumed by the lighting unit 50, and at the same time the state of charge of the storage battery 30.

Next, the state of charge of the capacitor 30 and the load amount used in the lighting unit 50 stored in the power monitoring server 60 are compared and judged in the power control device 40 (S105), and the load amount used in the lighting unit 50 is determined. When it is determined that the power control device 40 can be executed by the power charged in the storage battery 30, the load time used in the lighting unit 50 is then determined (S106).

When it is determined that the lighting unit 50 is sufficient to operate the charging of the capacitor 30 in the step S106, the DC / AC hybrid control unit 43 controls to operate the DC lamp 52 (S107).

Meanwhile, when the power control unit 42 determines that the state of charge of the capacitor 30 does not meet the load usage and use time of the lighting unit 50 in steps S105 and S106, the DC / AC hybrid control unit 43 uses the commercial power unit ( By using the power of 10) to operate the AC lamp 51 of the lighting unit 50 (S108).

Each of the above steps is executed in real time, so that optimal landscape lighting can be executed.

In addition, the power control device 40 stores data on power consumption, power generation amount, charge amount, etc. according to the series of control as described above in a database of the power monitoring server 60.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

That is, in the description of the above embodiment, the lighting unit 50 has been described as operating by dividing the AC lamp 51 and the DC lamp 52 to execute the landscape lighting, but the present invention is not limited thereto. A power converter made of an inverter or the like may be provided so as to be illuminated by only one of the DC lamp and the AC lamp.

 In addition, in the above embodiment, it has been described that the landscape lighting is performed by using solar power generation, but the present invention is not limited thereto.

In addition, in the above embodiment, the power control unit 42 has been described as operating the lighting unit 50 by data communication with the power monitoring server 60, but is not limited thereto, and the power monitoring server 60 in the power control unit 42 is described. In addition, the operation of the lighting unit 50 may be selected by the capability of the power control unit 42 itself.

The optimal landscape lighting system and method using renewable energy according to the present invention is used for lighting of the landscape.

10: commercial power supply unit 20: solar power generation unit
30: storage battery 40: power control device
50: lighting unit 60: power monitoring server

Claims (7)

As an optimal landscape lighting system that optimally controls landscape lighting using solar power generation,
Storage battery for charging direct current electric energy generated by the solar power generation unit,
Commercial power supply unit for receiving the power supplied from the power grid via the power transmission line,
A power control device for controlling the supply of power supplied from the storage battery or a commercial power supply unit;
It includes an illumination unit having an AC lamp or a DC lamp for the landscape lighting,
The power control device monitors the load usage and the load usage time in real time according to the state of charge of the capacitor, the state of the power supplied from the solar power generation unit or the commercial power supply unit, the load usage and the load usage time is the charge of the battery Optimum landscape lighting system, characterized in that for executing the landscape lighting to the power supply of the commercial power supply if the capacity is exceeded. The method of claim 1,
The power control device
Charge monitoring unit for checking the state of charge of the battery, and outputs the state of charge,
A power control unit to determine whether the commercial power unit is applied according to the state of charge of the battery transmitted from the charge monitoring unit;
A DC / AC hybrid controller which controls on / off of the AC lamp or the DC lamp according to the control of the power controller;
Optimal landscape lighting system comprising a monitoring unit for displaying the operating state of the DC / AC hybrid control unit, the state of the production power of the photovoltaic unit and the state of charge of the storage battery. The method of claim 1,
Optimal landscape lighting system further comprises a power monitoring server for managing information on the power consumption from the solar power generation unit or commercial power unit and the power consumption of the lighting unit by time and season. As a method of optimally controlling landscape lighting using solar power generation,
(a) calculating the daily load demand of the installed landscape lighting;
(b) calculating the amount of photovoltaic power generation required per day in consideration of the output loss to the load calculated in step (a);
(c) selecting a solar module according to the amount of power calculated in step (b);
(d) selecting the storage battery in consideration of the battery voltage, the number of days of relief and the battery discharge voltage according to the amount of power calculated in step (b); and
(e) performing landscape lighting by electric power charged in the battery selected in the step (d). The method of claim 4, wherein
(f) monitoring the load usage and the load usage time in real time, and if the load usage and load usage time exceeds the charge capacity of the battery, further comprising executing landscape lighting with commercial power. Landscape lighting method. The method of claim 5,
(e) Landscape lighting execution in the step (d) is performed by the DC lamp, landscape lighting execution in the step (f) is carried out by the lamp for AC. The method of claim 5,
The daily load demand in the step (a) and the amount of solar power generation required in the day in the step (b) and the landscape lighting time in the step (e) are calculated differently according to the season. Optimal landscape lighting method.

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