Energy Consumption Calculation of Tunnel Lighting Based on Infinite Dimming on Guizhou Expressway
The energy consumption of highway tunnel lighting varies greatly under different control strategies,and there are many dynamic changes in the current infinite dimming mode,which makes it difficult to calculate the lighting energy consumption.To quantify the energy consumption level when using an intelligent stepless dimming control system during the operation of highway tunnels,this paper proposes an energy consumption calculation model based on season,historical weather,and real-time brightness outside the tunnel.Firstly,the current status of highway tunnel lighting design and dimming control strategies under different weather conditions were analyzed,providing theoretical support for energy consumption calculation of highway tunnel lighting.Secondly,an energy consumption calculation model was constructed based on seasonal and historical weather forecasts,as well as real-time changes in brightness outside the tunnel on a single day.The energy consumption situation was calculated using the Xiaozhai Tunnel(1 297 m/1 292 m)under construction in Guizhou Province as an example.The results indicate that energy consumption calculated based on seasonal,historical weather statistics,and outdoor brightness factors can more accurately and effectively reflect the actual operation status of intelligent stepless dimming systems,providing important reference basis for operation and management units to adjust lighting control strategies and energy-saving upgrades in real time.
highwaystunnel lightingenergy consumption calculationenergy saving analysisbrightness outside the cave