Algorithm for Canal Gate Operation to Maintain Steady Water Levels Under Abrupt Water Withdrawal

Abstract

Most studies on the design of an automated canal pool have produced fairly good results. However, when the designs are extended to multi‐pool canals, there is an inability to eliminate interactions between pools caused by gate start‐up and shutdown. This paper thus proposes a distributed computing gate operation algorithm for eliminating water level fluctuation and controlling the downstream water level of canal pools within a reasonable range. The algorithm was developed using state space equations derived from the complete Saint Venant equations by a finite difference scheme. This paper illustrates the application of the control method to a series of pools bounded by upstream and downstream gates. The effectiveness of the control was also verified by applying it to a laboratory canal, wherein the soft sensor technique was used to simplify communication between the distributed information nodes. The test results confirmed the ability of the proposed method to cope with rapid variations in water demand while maintaining water levels of the controlled pools. Copyright © 2016 John Wiley & Sons, Ltd.

EFFECTS OF CANAL AUTOMATION ON REDUCING GROUNDWATER EXTRACTION WITHIN IRRIGATION DISTRICTS: CASE STUDY OF QAZVIN IRRIGATION DISTRICT†

“…To attain this objective, several managerial features, various automatic operational systems for the irrigation districts, have been designed, tested and developed by researchers (Playán and Mateos, ; Stringam and Esplin, ). Furthermore, analysis of various irrigation canals has been carried out by applying several configurations of decentralized control systems (Burt and Piao, ; Burt, ; Hashemy et al, ; Stringam and Wahl, ; Shang and Shang, ; Wahlin and Zimbelman, ).…”

A Regulation Algorithm for Automatic Control of Canal Systems Under Emergency Conditions

“…A major objective of these projects is to deliver water for domestic, commercial and industrial uses in the water‐deficient areas along canals (Burt, ). Water levels at some points are controlled by the check gates at the downstream or upstream end of a pool to ensure efficient and safe water delivery (Shang and Shang, ). These points are generally located at the downstream end of the pool, where there is usually a minimum safety height (Rogers and Goussard, ; Clemmens and Strand, ).…”

Automatic feedback control algorithm for canal for a quick upstream water supply interruption in the case of an emergency

“…These points are often referred to as operation control points. Maintaining the water level stability at the control point is the primary condition for safe operation of the canal [1]. For open canal, water level control is mainly controlled by the control gates at both sides of a pool.…”