Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
TUNNEL VENTILATION CONTROL SYSTEM OF TWO-WAY TUNNEL USING JET FAN
Document Type and Number:
WIPO Patent Application WO/2011/042980
Kind Code:
A1
Abstract:
Provided is a tunnel ventilation control system wherein it is possible to conserve power by modifying a feedback control and a feed-forward control. A feed-forward control unit (140): predicts the amount of pollution generated, natural wind, and traffic wind by using a visibility index target value, a CO concentration target value, various data which were actually measured in the tunnel by a sensor unit (110), and the wind velocity model, traffic model, and pollution concentration model which are in a model storage unit (120); and determines an x-section wind velocity target value and a ventilation device control target value. An optimal selection plan determination unit (160) determines an energy-saving optimal selection plan with consideration to the relationship between the rotation speed and number of ventilation devices (10) operated in parallel and the relationship between the natural ventilation direction of natural wind and the traffic ventilation direction created by the two-way traffic when the forward/backward movement is in reverse. A first feedback correction related to the x-section wind velocity target value and a second feedback correction related to the ventilation device control target value are performed by cascade control, and a hybrid adaptive control unit (180) performs adaptive control which combines the feedback corrections with the energy-saving optimal selection plan.

Inventors:
NAKAHORI ICHIRO (JP)
MAEDA KAZUO (JP)
MITANI ATSUSHI (JP)
Application Number:
PCT/JP2009/067592
Publication Date:
April 14, 2011
Filing Date:
October 05, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SOHATSU SYSTEMS LAB INC (JP)
NAKAHORI ICHIRO (JP)
MAEDA KAZUO (JP)
MITANI ATSUSHI (JP)
International Classes:
E21F1/00; F24F7/007; F24F7/06
Foreign References:
JP2009243244A2009-10-22
JP2009243241A2009-10-22
JP2004156258A2004-06-03
JP2004169341A2004-06-17
JPH11210399A1999-08-03
JPH1181900A1999-03-26
JPH10292800A1998-11-04
JPH09125897A1997-05-13
Attorney, Agent or Firm:
NAGAI, MICHIAKI (JP)
Nagai 道彰 (JP)
Download PDF: