軌道散水消雪のフィードフォワード制御

抄録

The Joetsu Shinkansen Line running through a heavy snowfall district is installed with a snow-melting system whose function is to melt snow deposited on the railway tracks by sprinkling heated water over the total length of the line within the limits of Niigata Prefecture. Because of its long water path, in these systems, delivery and return of the water takes a very long time, resulting in a time lag as the feedback control characteristics. In order to improve this control, a control system using a feed forward algorithm has been developed and a system operation test has been carried out in a field. It is found very promising as a snow-melting system from the viewpoint of energy saving since the control cycle time is cut down by following the changes in weather conditions such as snowfall, atmospheric temperature, and wind velocity.