Centralized controller for the Narmada main canal

✍ Scribed by A. Montazar; P. J. Van Overloop; R. Brouwer

• Book ID: 102282358
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 330 KB
• Volume: 54
• Category: Article
• ISSN: 1531-0353
• DOI: 10.1002/ird.155

✦ Synopsis

The current challenge facing irrigation networks is to find ways to improve their operational performance. Control system design and implementation is considered as one of the most assured ways to achieve this aim. In this paper, a downstream water-level controller is presented for the first nine pools of the Narmada main canal in India. The control system consists of a remote downstream proportional-integral (PI) feedback controller with feedforward control. In this controller, each water-level regulator is adjusted based on water levels of all the pools of the canal. A linear model of the canal pool response, the integrator-delay model, is applied to define the state transitions. To evaluate the control system potential, performance criteria were considered. The results show that the designed controller has considerable potential to closely match the discharges at the downstream outlets/offtakes with those ordered by water users while maintaining the water levels throughout the length of the canal. This result is achieved providing that the estimated delay times used in the feedforward controller are varied depending on the flow rate.