非線形計画法およびファジイ制御に基づく道路トンネル換気制御

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  • Road Tunnel Ventilation Control Based on Nonlinear Programming and Fuzzy Control.
  • ヒセンケイ ケイカクホウ オヨビ ファジィ セイギョ ニ モトズク ドウロ ト

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The paper presents a road tunnel ventilation control system for longitudinal tunnels with nonlinear programming and fuzzy control applications. The ventilation control system has two tasks: to keep the pollution level within a proper range, and to save electric power for ventilation equipments. In large-scale tunnels with various ventilators, the system uses ventilators efficiently as the traffic flow varies. The proposed system can operate ventilators based on traffic volume prediction using its daily change pattern with nonlinear programming (multiplier method). Pollution materials in longitudinal tunnels are propagated by the wind, so the process is represented by a distributed parameter system. Moreover, the wind velocity in the tunnel is constantly changing depending on traffic volume and natural conditions, so the process is very complicated. The proposed system, therefore controls not only the pollution level, but also the wind velocity for stable ventilation. Furthermore, fuzzy control is applied for hulnanlike control. The control system has been applied to actual tunnels and is producing satisfactory results.

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