Fairly Water Delivery in a Centralized Automatic Control System of Main Irrigation Canal Using Water Level Difference Error strategy

Document Type : Original Article

Authors

1 Assistant Professor, Water Engineering Department, College of Aburaihan, University of Tehran., Tehran., Iran

2 M.Sc. Hydraulic structure; Guest Lecturer, Department of Civil Engineering; Azad University branch of Babol., Babol., Iran

3 Assistant Professor, Water Engineering Department, University of Mohaghegh Ardabili. Ardabil., Iran

Abstract

This paper investigates the performance of LQR centralized automatic control systems, using water level difference error strategy in main irrigation canal suffering from water scarcity. The purpose is to evaluate the equitable water distribution in main irrigation canal in conditions that the amount of water inflow into the canal is less than total water demands. Therefore three operational scenarios of normal conditions; sudden changes in water off-taking from the main canal; and deficit in supplied water are selected. A centralized LQR automatic control system is designed and tested under the mentioned operational scenarios. Performance assessment indices were also calculated during the simulation and reported in the results. The results show the reasonable performance of the designed controller in the first two operational test scenarios. Also in third one, the controller shows acceptable distribution of water level error so that equitable index varies in a limited ranged from 0.15 to 0.18. The results indicate acceptable performance of LQR controller using water level difference error operational strategy and consequently providing an equitable distribution of water along the main canal

Keywords

References

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Iranian Journal of Irrigation & Drainage
Volume 9, Issue 6 - Serial Number 54
March and April 2016
Pages 883-892

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