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High-efficiency solar lighting system

A lighting system, solar energy technology, applied in lighting devices, lighting and heating equipment, components of lighting devices, etc., can solve the problems of 220V AC mains safety reduction, AC-DC conversion power loss and other problems, achieve light weight, power The effect of reduced transmission loss and low switching loss

Inactive Publication Date: 2011-06-22
桂林市百能科技设备有限责任公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of lighting system has defects such as the inherent AC-DC conversion power loss of the inverter and the reduced safety caused by the 220V AC mains.

Method used

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Embodiment Construction

[0029] In the present invention, the specific connection of each part sees figure 1 .

[0030] 1. Solar photovoltaic module array: The selected total capacity parameters are 60V, 80A, and the rated output power is 4500W. It is composed of polysilicon single modules through internal series and parallel connection.

[0031] 2. Solar charge controller: The main control device IGBT selects a product with a parameter of 120V / 150A, and the current detection sampling resistance is 0.5Ω (calculated according to the capacity of the battery pack in ampere-hours AH, that is, the allowable upper limit value I of the controlled charging current Confirm: R=V / (AH / 10). See the specific connection figure 2 .

[0032] 3. Battery pack: A total of 18 single cells (cells) 36V deep-cycle sealed maintenance-free lead-acid batteries are selected, with a total capacity of 650 Ah.

[0033] 4. Intelligent power controller: One-way thyristor selects products with parameters of 120V / 150A, Schottky rever...

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Abstract

The invention discloses a high-efficiency solar lighting system. A multicrystal silicon solar photovoltaic module array with a no-load output voltage of 60V provides electric energy. A solar charging controller is connected with the multicrystal silicon solar photovoltaic module array and is also connected with an intelligent power supply controller, the intelligent power supply controller is formed by a UPS (Uninterruptible Power Supply) switching controller based on the control of a single chip, a battery bank is connected between the solar charging controller and the intelligent power supply controller and consists of total 18 deeply circular sealed maintenance-free lead-acid accumulators with monomers of 36V, the other input end of the intelligent power supply controller is connected with a rectification voltage stabilizer connected into the mains supply, and the output end of the intelligent power supply controller is sequentially connected with an automatic dimmer and an LED lamp set. In the high-efficiency solar lighting system, 36V low-voltage direct current drives the LED lamp set without needing an immediate alternating-current and direct-current transformation process, thereby effectively avoiding the electric power consumption in the immediate alternating current and direct-current transformation process and reducing more than 60% of electric power consumption; an IC (Integrated Circuit) is controlled and driven by an optical sensing PWM (Pulse Width Modulator), and the brightness of the LED lamp can be automatically and suitably regulated according to environment illumination. The invention is mainly applied to places needing more lighting lamps and higher uniformly-distributed illuminating brightness, such as markets, hotels, schools, office buildings and the like, and also applied to household lighting systems.

Description

Technical field: [0001] The invention relates to solar semiconductor lighting technology, in particular to a high-efficiency solar lighting system. Background technique: [0002] Ordinary LED lamps are equipped with a driving constant current power supply, but none of them have dimming function, and there is more than 15% power loss during the AC-DC conversion process. In addition, the existing solar lighting systems are all powered by solar photovoltaic module arrays to charge the battery pack, and then the inverter converts the DC power of the battery into 220V AC mains power, and supplies power to the lighting system. This type of lighting system has defects such as the inherent AC-DC conversion power loss of the inverter and the reduced safety caused by the 220V AC mains. Invention content: [0003] The invention provides a high-efficiency solar lighting system. [0004] The relatively low-cost polysilicon solar photovoltaic module array is used to provide electric e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S9/03F21V23/00H05B37/02F21Y101/02F21Y115/10
CPCY02B10/10
Inventor 余仙民曾桂荣
Owner 桂林市百能科技设备有限责任公司
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