Guangzhou Metro applies intelligent control of 30 trains, saving 490,000 kWh annually

Recently, when Guangzhou residents take the No. 4 train, they will find that on the ground elevated line, if the weather outside the car is better, the lighting in the car will reduce the brightness, and when the train enters the dark tunnel, the brightness will automatically recover quickly. To normal state. According to the subway company, the lighting renovation of the No. 4 line has achieved intelligent control of lighting, which can minimize energy consumption and make the subway more environmentally friendly and energy efficient.

According to reports, the project is the first time in Guangzhou Metro to apply intelligent illumination control technology for vehicles. The technology is to install an illuminance induction controller at the opposite corners of the LED lights on both sides of the train compartment. By sensing the illuminance inside the compartment, the illuminance level of the compartment is automatically controlled to maintain an appropriate set value, and when the illumination of the compartment is high, the power output is reduced; When the illumination of the compartment is low, the power output is increased to provide a stable and comfortable lighting environment for the passengers, and the lighting energy consumption is further reduced on the basis of the LED lighting itself.

The person in charge of the project said that the technology is suitable for lines with long elevated sections. When the train runs on the elevated line, the weather outside the car is good and the sunlight is sufficient, the car illumination controller will automatically reduce the power of the lighting system or even Turn off the lighting and use the sunlight outside the train to illuminate and reduce energy consumption.

It is reported that the first train has been rebuilt on the line, and the lighting system of the remaining 29 trains on Line 4 will be completely renovated before the end of this year. After using this technology, it is estimated that the annual energy consumption will be 490,000 degrees, equivalent to RMB 410,000. The subway company said that if the technology is successfully applied on the 4th line, it will be extended to the new long elevated line to achieve energy saving.

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