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A REGULATION ALGORITHM FOR AUTOMATIC CONTROL OF CANAL SYSTEMS UNDER EMERGENCY CONDITIONS
Author(s) -
Kong Lingzhong,
Lei Xiaohui,
Wang Mingna,
Shang Yizi,
Quan Jin,
Wang Hao
Publication year - 2019
Publication title -
irrigation and drainage
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 38
eISSN - 1531-0361
pISSN - 1531-0353
DOI - 10.1002/ird.2353
Subject(s) - closing (real estate) , volume (thermodynamics) , point (geometry) , stage (stratigraphy) , water level , control theory (sociology) , computer science , set (abstract data type) , volumetric flow rate , water flow , control (management) , flow (mathematics) , algorithm , engineering , mathematics , environmental engineering , artificial intelligence , geology , paleontology , physics , geometry , cartography , quantum mechanics , political science , geography , law , programming language
Normally, an automatic control algorithm will fail in the case of an urgent great flow change for the characteristic parameters of canal pools which may differ a lot when the flow rate changes greatly, and consequently cause a high water level and overflow. In this study, we propose a two‐stage control method based on the accurate hydraulic simulation of a multi‐pool canal system, which consists of the optimization of gate closing times and real‐time volume regulation. In the first stage, gate closing times are optimized based on the hydraulic simulation to reduce the increase of water level during the closing of gates. In the second stage, the gates are operated according to the difference between the real‐time and target volume so that the water level can remain stable at the pre‐set target point. The results show that this method can reduce the increase in water level and steady time compared with the PIF control method. © 2019 John Wiley & Sons, Ltd.