Design and evaluation of automatic downstream controller algorithm in Sarakhs Irrigation Network
Seyed Musavi , Seyed Mohammad , Parvarsh Rizi , Atefe , Isapoor , Saeed
Employment of automatic control systems in irrigation water management and distribution in open channel is essential as a tool to improve the management and efficiency of these systems. The objective of this study is design and evaluation of an automatic downstream controller algorithm with proportional-integral technique (feedback+ feedforward and decoupling) for EPC canal in the Sarakhs irrigation network. Algorithm efficiency was evaluated by simulation of some different operation scenarios using SOBEK hydrodynamic model and calculation of performance indices of control systems as well. Tuning of control algorithm was done by determination of canal reaches characteristics using system identification process. The average of MAE (Maximum Absolute Error), IAE (Integral of Absolute Magnitude of Error) and STE (Steady State Error) indices were calculated 0.042, 0.005 and 0.001 respectively for different reaches. The results show that this algorithm has considerable potential in flow control and dissipating the disturbances. Also, this algorithm can provide the condition of demand – oriented distribution and improving the water distribution system.Employment of automatic control systems in irrigation water management and distribution in open channel is essential as a tool to improve the management and efficiency of these systems. The objective of this study is design and evaluation of an automatic downstream controller algorithm with proportional-integral technique (feedback+ feedforward and decoupling) for EPC canal in the Sarakhs irrigation network. Algorithm efficiency was evaluated by simulation of some different operation scenarios using SOBEK hydrodynamic model and calculation of performance indices of control systems as well. Tuning of control algorithm was done by determination of canal reaches characteristics using system identification process. The average of MAE (Maximum Absolute Error), IAE (Integral of Absolute Magnitude of Error) and STE (Steady State Error) indices were calculated 0.042, 0.005 and 0.001 respectively for different reaches. The results show that this algorithm has considerable potential in flow control and dissipating the disturbances. Also, this algorithm can provide the condition of demand – oriented distribution and improving the water distribution system.Employment of automatic control systems in irrigation water management and distribution in open channel is essential as a tool to improve the management and efficiency of these systems. The objective of this study is design and evaluation of an automatic downstream controller algorithm with proportional-integral technique (feedback+ feedforward and decoupling) for EPC canal in the Sarakhs irrigation network. Algorithm efficiency was evaluated by simulation of some different operation scenarios using SOBEK hydrodynamic model and calculation of performance indices of control systems as well. Tuning of control algorithm was done by determination of canal reaches characteristics using system identification process. The average of MAE (Maximum Absolute Error), IAE (Integral of Absolute Magnitude of Error) and STE (Steady State Error) indices were calculated 0.042, 0.005 and 0.001 respectively for different reaches. The results show that this algorithm has considerable potential in flow control and dissipating the disturbances. Also, this algorithm can provide the condition of demand – oriented distribution and improving the water distribution system.Employment of automatic control systems in irrigation water management and distribution in open channel is essential as a tool to improve the management and efficiency of these systems. The objective of this study is design and evaluation of an automatic downstream controller algorithm with proportional-integral technique (feedback+ feedforward and decoupling) for EPC canal in the Sarakhs irrigation network. Algorithm efficiency was evaluated by simulation of some different operation scenarios using SOBEK hydrodynamic model and calculation of performance indices of control systems as well. Tuning of control algorithm was done by determination of canal reaches characteristics using system identification process. The average of MAE (Maximum Absolute Error), IAE (Integral of Absolute Magnitude of Error) and STE (Steady State Error) indices were calculated 0.042, 0.005 and 0.001 respectively for different reaches. The results show that this algorithm has considerable potential in flow control and dissipating tEmployment of automatic control systems in irrigation water management and distribution in open channel is essential as a tool to improve the management and efficiency of these systems. The objective of this study is design and evaluation of an automatic downstream controller algorithm with proportional-integral technique (feedback+ feedforward and decoupling) for EPC canal in the Sarakhs irrigation network. Algorithm efficiency was evaluated by simulation of some different operation scenarios using SOBEK hydrodynamic model and calculation of performance indices of control systems as well. Tuning of control algorithm was done by determination of canal reaches characteristics using system identification process. The average of MAE (Maximum Absolute Error), IAE (Integral of Absolute Magnitude of Error) and STE (Steady State Error) indices were calculated 0.042, 0.005 and 0.001 respectively for different reaches. The results show that this algorithm has considerable potential in flow control and dissipating the disturbances. Also, this algorithm can provide the condition of demand – oriented distribution and improving the water distribution system.he disturbances. Also, this algorithm can provide the condition of demand – oriented distribution and improving the water distribution system.
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