Switched control of over-topping water channels. Issue 33 (2022)

• Record Type: Journal Article
• Authors: Strecker, Timm; Cantoni, Michael; Weyer, Erik
• Is Part Of: IFAC-PapersOnLine. Volume 55:Issue 33(2022)
• Page Start: 78
• Page End: 84
• Publication Date: 2022
• Subjects: Water supply -- distribution systems -- decentralized control -- switched control -- irrigation -- disturbance rejection; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2022.11.013
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: Automated open-water channels are used to deliver water for irrigation in an efficient manner. In the distant-downstream control architecture, water is released from upstream storage in response to downstream demand. In some situations, such as when large water off-takes stop suddenly or heavy rain starts, storage capacity in the channel can be insufficient, leading to a sharp water-level rise that might breach the top of the channel walls and flood surrounding areas. In this paper, a switching strategy is presented that, when safety thresholds are exceeded, releases excess flow into downstream pools where storage capacity is available or through escapes out of the channel.