High-power LED-street lighting application

Driven by various emerging application fields, the scale of the LED market has been rapidly improved in recent years. Its application fields have evolved from simple electrical

indications and LED-based displays to LCD green light sources, landscape lighting, Interior lighting, automotive lighting and other fields. As LED has the characteristics of long

life, pollution-free and low power consumption, in the future, LED will gradually replace fluorescent lamps and incandescent lamps for the next generation of green lighting sources.

In this chapter, we explain the application of LED) in various territories, including the application of LED in the field of urban lighting, the application of LED display, the

application of LED in home lighting, automotive lighting, and various special LED light sources. . The application of LED is very wide. It can not only provide bright lighting,

but also save energy, which is the development direction of future lighting.

1. The application of high-power LED in street lighting

Due to the rapid development of high-power LEDs in recent years, the current luminous efficiency can reach 80-100 ImW. Therefore, a large number of high-power LEDs are

used as green energy advertising equipment, green energy landscape lighting, park lighting, community lighting and lighting between buildings. It not only saves energy, but

also environmental protection, and can save investment. This section introduces the wind-solar complementary power LED designed and manufactured by Wuxi Zhongke Green

Energy Technology Co., Ltd., which can be used for urban street lighting.

1.1 City street lighting

City street lights are common lighting tools in daily life, which bring light to night life Beautiful street lights can also decorate the city at night.

However, street lamps consume a lot of power, and because of the long low-voltage transmission lines of street lamps, not only the street lamps themselves consume power,

but also the power consumption of the transmission lines and the wires themselves. At present, the energy-saving work of street lamps has been included in the important

work of governments at all levels and street lamp management departments.

1.2 Solar lighting

In recent years, a large number of new technologies and products of book energy have appeared in the urban Weilu lighting industry. Among them, Dayang energy urban

street lights do not need electricity: therefore, they have the advantage of not having to install cables. However, when solar energy is used to light high-pressure or low-sodium

lamps, because it is an inductive negative line, if the voltage is increased by the electric energy converted by solar energy, many circuits must be converted: this also consumes energy.

If you use solar energy to light up the LED street lights, although the sun can light up after charging the battery, there is no guarantee that the LED will continue to light if there

is no sunlight for five or six consecutive days. Therefore, wind power generation is used for external use, and there is no sunlight. In the case of, it refers to the supplementary

energy of wind power, which can still light up

1.3 Wind-solar complementary power LED intelligent street light

The LED intelligent street lamp uses solar energy and wind energy as driving energy, and its working principle.

If you encounter continuous rainy days, you can work normally for more than 4 days (up to 7 days)

●The height of the street lamp is 6~12m, which can be used for main and secondary roads, as well as for park and community lighting.

●According to needs, it can be set to automatically switch street lights, and also can be set to full power all night, half power late at night, 4 to 8 hours timing lights off and

other power options.

●The charging circuit can be set with overload protection to provide constant current for lighting the LED.

After the company's field test and trial, when the wind speed is high (above level 4), the wind turbine generates a large amount of electricity (more than 70%), and the charging

speed is fast (the battery can be fully charged in 4 to 10 hours for 3 days use) . This complements each other with solar panels and can meet usage requirements.

According to the actual measurement, the illuminance of 35W power LED is the same as 70W high pressure sodium lamp, but the LED emits white light, so the visual effect is

obviously better than the yellow light emitted by sodium lamp. Table 6.1 compares the economic costs and technical indicators of conventional street lamps and wind-solar

complementary power LED street lamps.

From the above data, the price and performance of high-power LED street lights are still very competitive. With the advancement of technology, the luminous efficiency

of high-power LED street lamps will continue to increase. Therefore, under the same power conditions, the street lights will be brighter, and the price will continue to fall.

If the heat dissipation and other aspects are well designed, the life of this street lamp is guaranteed, so the use of LED as street lamp lighting will continue to spread. LED

street lights lit by solar energy as a power source will find practical applications in the future.

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This article has been authenticated by the original "original", and the author has enriched Xianwen. Visit yuanben.io to query [57CRP17S] for authorization information

It may not be used in any way, including but not limited to reprinting, extracting, copying, or creating mirror images. Offenders must be investigated.

The entry is created, edited and maintained by Guangdong Queendom Technology. If you find that the content of the entry is suspected of infringement, please contact us via E-mail: gm@cn-led.net,

and we will deal with it in a timely manner in accordance with relevant laws and regulations. Without permission, commercial websites, etc. are prohibited from copying and grabbing the contents

of Toutiao Encyclopedia; reasonable users, copyright cooperation E-mail: gm@cn-led.net, please indicate the source from www.cn-led.net. Feedback 2020 cn-led.net