LED and solar energy to create green new energy

In today's world, the main energy sources such as oil, coal, natural gas is facing the danger, at the same time, the environmental protection is also increasing pressure, therefore, environmental protection, energy saving has become the world within the scope of all walks of life to the pursuit of the goal. Solar energy is a clean green energy, semiconductor light-emitting diodes ( 领导) Is also a kind of environmental protection, energy saving and efficient solid state lighting.

in the past one hundred years, lighting light source has experienced three important stages: incandescent lamp, fluorescent lamp, HID lamp. The incandescent light bulb is the first generation of light source, fluorescent lamp is the second generation of light source, high intensity discharge lamp is the third generation of light source, 藏) 。 Now in the lighting industry has a broad development prospects of the LED light source is known as the fourth generation light source. As a novel semiconductor light source, LED has long service life, high luminous efficiency, low power consumption, short start-up time, firm structure, etc.

　　1. The principle of solar photovoltaic power generation

the solar photovoltaic power generation is rely on solar cell components, using electronics characteristic of the semiconductor material, when the sun on the semiconductor PN junction, because P - N junction barrier area has a strong built-in electrostatic field, resulting in the barrier area in the nonequilibrium electrons and holes or spread in the barrier zone but OuDeFei balance electrons and holes into the potential barrier and built under the action of electrostatic field, the respective outwards, left the barrier zone, P area potential rise as a result, N area to reduce the electric potential, thus in open circuit voltage and current, the light energy into electricity. Solar photovoltaic power generation system in general can be divided into two categories, one is connected to the grid system, namely through standard interfaces and utility power grid faces connection, like a small power plant; Another kind is independent power generation system, the circuit is formed within the own closed-circuit system. Grid generation system of solar radiation energy by photovoltaic array will receive after high frequency dc conversion into high voltage direct current (dc), through the inverter output after the inverter to the grid and the grid voltage and frequency, and phase of the sinusoidal alternating current. Photovoltaic array and independent power generation system will first receive to solar radiation energy directly into electricity supply load, and excess energy after charging controller in the form of chemical energy stored in the battery.

　　2.

the advantages of LED lighting LED semiconductor lighting source has a long service life, high luminous efficiency, small volume, light weight, environmental protection, safe and reliable, and other advantages, also has a significant advantage is due to the leds start voltage and working voltage is consistent, so there's no need to use ballast. So in saving cost and energy consumption at the same time, also greatly shorten the response time of power.

　　3. The combination of solar energy and LED lighting can

solar photovoltaic power generation technology with the perfect combination of LED lighting is the key to both for the low voltage direct current (dc), and can match each other. So a combination of both don't need to solar cells produce direct current into alternating current (ac), thus greatly improving the efficiency of the entire lighting system. At the same time, by using grid technology or use battery energy, make its advantages more apparent. With the in-depth study of related technology, LED luminous efficiency is improving, high brightness LED is coming, will replace the ordinary light source, and a large number of energy saving and pollution-free.

due to the working current is dc LED, and lower working voltage. Solar cell can convert light energy into direct current, and the solar battery components can be obtained by way of series-parallel combination actual need of the voltage. These characteristics to match the LED, a combination of these two will get a high energy efficiency, high safety and reliability, to achieve energy saving, environmental protection, safe and efficient lighting system, to realize the combination of perfect.

edit: gather