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Solar Home Lighting System Scale And Application Form

Household solar lighting system Solar LED lighting system scale and application in different forms, the system scale span is large, small to 0.3 ~ 2W lawn lamp, large to several hundred watts of solar LED high pole lights. Its application forms are also varied, in the home, transportation, Solar Home Lighting System communications, space and many other areas can be widely used. Although the Solar Home Lighting System size of solar LED lighting system varies, but its composition and working principle is basically the same. Solar LED lighting system by the solar cell matrix; home solar lighting system battery; controller (some controller integrated LED driver function, but also the controller and LED driver discrete); LED light source composition. Solar LED lighting system
Solar cells are mainly divided into: crystalline silicon cells (including monocrystalline monoc-Si, polysilicon Multi-Si, ribbon silicon Ribbon / Sheetc-Si), amorphous silicon cells (a-Si), non-silicon batteries (including selenide Copper indium CIS, cadmium telluride CdTe). Types and characteristics of household solar lighting systems
In the solar LED lighting system, the most Solar Home Lighting System important is the solar cell, because it is the core components of the collection of sunlight. Household solar lighting system due to technical and material reasons, a single solar cell power generation is very limited, the practical use of solar cells is a single battery string, parallel composition of the solar cell components. In recent years, as the mainstream of solar cell technology, crystalline silicon cells, raw material prices continue to rise, resulting in the cost of crystalline silicon cells rose sharply, home solar lighting system which makes the amorphous silicon Solar Home Lighting System battery cost advantage is more obvious. In addition, thin-film batteries (large savings in the use of raw materials, thereby significantly reducing costs) has become the direction of development of solar cells, but its technical requirements are very high, and amorphous silicon thin film batteries as the most mature technology of thin film batteries, The most growth potential of the varieties.
Home Solar Lighting System The Solar Home Lighting System battery pack is a storage device in a solar LED lighting system that converts DCs converted from solar radiant energy to chemical energy for storage applications. Since the energy output from the solar cell module is extremely unstable, it is generally necessary to configure the battery to make the load work properly. The energy generated by the solar cell is stored in the form of chemical energy in the battery, and when the load requires power, the battery converts the chemical energy into electrical energy to the load. The characteristics of the battery directly affect the solar LED lighting system efficiency, reliability and price. The choice of battery capacity generally follow the principle is: first in the load to meet the premise of electricity, the daytime solar cell components generated by the energy stored as much as possible, but also to be able to store the expected continuous rainy days the load required power The
Household solar lighting system battery capacity by the end of the load required electricity, sunshine time (power generation time) impact. So the battery watts when the capacity Solar Home Lighting System of the load by the required power and continuous sunshine time is determined, so the performance of the battery directly affect the solar LED lighting system operating characteristics. At present, solar LED lighting system is commonly used in valve-sealed lead-acid batteries, deep discharge liquid-absorbent lead-acid batteries, solar special battery batteries. The role of the controller is to make solar cells and batteries efficient and reliable work to get the most efficient and extend the battery life. The controller controls the charging and discharging of the battery and controls the output power of the solar cell module and the battery according to the power demand of the load, which is the core part of the whole solar LED lighting system. Through the controller on the battery charge and discharge conditions to be limited to prevent the battery anti-charging, overcharge and over discharge. In addition, it should have a circuit short circuit protection, reverse protection, lightning protection and temperature compensation and other functions. As the output energy of the solar cell is extremely unstable, the quality of the controller charge and discharge control circuit is critical to the design of the solar power system.
The controller should make the solar cell module in the solar LED lighting system always near the maximum power point of the power generation to achieve maximum efficiency. The charge control is usually used pulse width modulation technology that PWM control mode, discharge control is mainly refers to when the battery power shortage, system failure, such as battery open or reverse when the switch off.