KR200290682Y1 - AC/DC Solar Lighting System for the Apartment and House - Google Patents

Abstract

The present invention relates to a window type solar lighting system for direct and alternating lighting using photovoltaic power generation. More specifically, the main purpose is to supply power to direct and alternating lighting facilities used in houses and apartments. And a window-type solar lighting system for direct and alternating lighting for supplying uninterrupted and uninterruptible power by installing a wall mounting on a veranda of an apartment and installing a solar lighting panel at a position of a generation distribution panel.

This invention is designed to supply 24 hours of lighting power by using window type solar lighting system. It is designed to supply power to small power, long life DC 12V LED lighting device. Relates to a device.

Description

Solar type lighting system for direct and alternating lighting in homes {AC / DC Solar Lighting System for the Apartment and House}

The present invention relates to a window-type solar lighting system for direct and alternating lighting devices of a house, and provides power supply for lighting facilities used in general houses and apartments, especially DC 12V LED lighting devices, which are spotlighted for their low power and long life. The present invention relates to a window-type solar lighting system for direct and alternating lighting, in which solar boards are mounted on the windows of houses and the veranda of apartments, and solar lighting panels are installed at generation distribution boards to enable uninterrupted and uninterruptible power supply. .

1 is a block diagram of a conventional grid-connected photovoltaic power generation system.

As shown in FIG. 1, the conventional solar power generation system installs a solar board 10 that converts solar energy into electrical energy on a roof of a house, and connects solar cells 직 in parallel to meet a required capacity. After converting the DC voltage into an AC voltage, the electricity is stored in the storage battery 15. The regulator 12 is necessary to maintain the necessary direct and alternating constant voltage, and is composed of a device for boosting the voltage of the booster 13 and supplying power to the load of the house 14 at 220V AC. In addition, the capacitive grid-connected photovoltaic power generation system consists of a system that returns electricity to KEPCO when surplus power accumulated in the solar board occurs. These devices need external environmental conditions such that PV (Photo-Voltaic) voltage of solar board should be more than 13.5V and illuminance should be more than about 10,000Lux, and there are limitations on usage that cannot be charged in bad weather conditions. .

In addition, the load used is harmonic problem and conversion loss caused by the use of inverter required to convert DC voltage and AC voltage by AC. In the regulator, DC constant voltage and AC load which maintains the voltage input from storage battery and solar cell equally Two-mode of AC constant voltage to be output should be configured.

Currently used solar modules are manufactured on the basis of 100 (L) * 100 (W) to form 1Cell, and the capacity is 0.5V-3A. Based on 50Watt, 36Vell is standardized at 0.5V-3A = 1.5W per cell, and 36Cell * 1.5W = 54W is used as 50W considering slight loss. The installation area is about 1m (L) * 0.6m (W) = It requires an area of 0.6 m 2, which is 0.012 m 2 / w.

If 3Kw of household power is to be continuously supplied using solar cells, 60 sheets of 50W are required and the area is 0.012㎡ * 3,000w = 36㎡. This does not take into account the clearance provided when the solar board is actually installed, and is only possible if the weather conditions are satisfied, thus requiring more space in the practical layout. This is a practical problem in the external environment and installation conditions.

In order to solve the above-mentioned problems, the present invention constitutes a system capable of providing an uninterrupted, uninterruptible reliability and high efficiency to directly and alternately supply a small power device to provide power for small power and long life DC 12V LED lighting. Its purpose is to provide energy saving and uninterruptible power supply, which can install and additionally use AC 220V lighting system.

The window type solar lighting system for direct and alternating lighting devices of the house of the present invention maintains a separate supply power from the system power supply, and the power supply of the DC lighting device becomes the core, so the inverter and booster of the existing configuration should be set to the required minimum capacity. It reduces the power loss of the device itself and reduces the harmonic problem. It also provides the power supply to the low power and long life DC 12V LED lighting equipment, which is emerging recently, and the battery controller is added to check the state of charge of the battery. It displays the status of discharge, checks the concentration of battery, controls charge / discharge, and prevents overcharge. The inverter is installed on the load side of the regulator so that the regulator is a 1-mode system that can maintain only DC constant voltage. Install the board in the window type to power the direct and alternating lighting devices of the house A system configured to class.

1 is a block diagram of a conventional grid-tied photovoltaic system

Figure 2 is a window type solar lighting system for the direct-current alternating lighting device of the house of the present invention

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

Figure 2 is a schematic diagram of the present invention, as shown in the window type solar lighting system for power supply of the direct-current alternating lighting device of the house to supply power to a low-power long-life DC 12V LED lighting device in accordance with the pattern of recent lighting changes The main purpose is to supply power to AC 220V lighting.

Solar cell 20 for converting light energy of the sun into electrical energy, battery 21 for storing power for use at night, and DC regulator 22 for maintaining a constant voltage inputted by the devices. ), A battery controller 23 for discriminating between overcharge and undercharge conditions, an inverter 24 for converting direct current into alternating current when using alternating current, a booster 25 for boosting the converted alternating current, and a direct current 12V LED lighting device (27). And a circuit breaker 26 for wiring, an AC 220V lamp 28 and an earth leakage breaker 29.

Hereinafter, an operation process of the window-type solar lighting system for the direct and alternating lighting device of a house having the above-described configuration will be described.

Window-type solar lighting system for direct and alternating lighting of homes installs solar board 20 on wall of house and apartment porch and inputs voltage from solar board through storage regulator 21 through DC regulator 22. It is connected and the power is supplied to the DC lamp 27 through the circuit breaker 26. In addition, a direct / AC conversion inverter 24 is installed at the rear end of the DC regulator, and a battery controller 23 is installed to display charge / discharge status of the battery, check the concentration of the battery, charge / discharge control, and prevent overcharge.

The AC 220V power supply is boosted by the booster 25 via the DC regulator 22 via an inverter 24 for direct / AC conversion, and is supplied to the load 28 via an ELB 29 which is a ground fault detection device.

Figure 3 is a compact solar panel to be installed so as to be installed in the existing unit generation distribution panel location or newly manufactured installation.

The window solar lighting system for the direct and alternating lighting system of the house of the present invention is to prepare the AC 220V lighting which is currently used by the low power, long life DC 12V LED lighting. Power consumption is about 1/10 or less and lifespan is about 30 times longer.

As described above, the present invention relates to a window-type solar lighting system for direct and alternating lighting using solar power generation. In particular, the present invention is supplied for a small power and long life DC 12V LED lighting power supply, so that a direct / alternating inverter is not used for direct lighting. Therefore, the loss can be reduced and the voltage of the solar cell is 0V ~ 14V, so the voltage can be supplied directly to the lamp by the constant voltage DC regulator, thereby reducing the double loss that changes from direct / AC to AC / DC.

This design can install 50W of solar board as a wall type in apartments and verandas of a small area and supply it with practical lighting power, and it is very economical and reliable that solar lighting panel can be installed at the location of generation panel in existing apartments. It is a practical system.

Claims (2)

Maintains independent power from the system power supply, and mainly aims to supply DC 12V LED lighting device, and window type for direct and alternating lighting device of house equipped with inverter and boosting device to reduce power loss and minimize harmonic problem. A solar lighting system, further comprising a battery controller in the device, A battery controller that functions as a charge / discharge display, battery concentration check, charge / discharge control, and overcharge prevention, and a 1-mode system that maintains only DC constant voltage by installing an inverter on the load side of the regulator. Window solar lighting system for alternating lighting. delete