Abstract
Water Distribution System (WDS) is one of the important phases of the Water Treatment Plant (WTP) and plays a crucial role in plant, animal, and human life. The WDS aims not only to supply a continuous, stable water amount but also to reduce energy consumption as little as possible during operation. To keep the continuous, stable water amount, the water pressure in the pipe network of the WDS must be maintained at desired set points under the effecting of uncertainties, disturbances, and noises. For saving the energy requirement, a Variable Frequency Driver (VFD) was utilized to control the speed of the Water Boost Pump (WBP) as speed as the WDS requires and a Recurrent Cerebellar Model Articulation Control System (RCMACS) was proposed to keep the water pressure at desired reference under abnormal events. Furthermore, to adapt to the industrial environment, the RCMACS was implemented on the Allen-Bradly Programmable Logic Controller (PLC), and industrial networks were also proposed to connect and transfer data between control stations and field devices.
Highlights
The Water Distribution System (WDS) plays an important role in plant, animal, and human life [1]
The WDS is a remote station that contains a ControlNet Module CNB2 to connect to the central station by ControlNet Network, a DeviceNet Module DNB to connect to the Variable Frequency Driver (VFD) by DeviceNet Network
The VFD is used to control the Water Boost Pump (WBP) to supply clean water to customers continuously and stably at desired set points; the pressure in the pipe was measured by a pressure transmitter (PT) the PT’s signal was fed to the VFD and sent back to the central station via the DeviceNet Network and ControlNet Network
Summary
The Water Distribution System (WDS) plays an important role in plant, animal, and human life [1]. Neural networks (NNs) can approximate non-linear functions to arbitrary precision by learning ability it has been proposed to cope with uncertainty systems and obtained good results in realistic applications [15,16,17]. Implementing the RCMAC on the Programmable Logic Controller (PLC) to stabilize the water pressure for the WDS is one of the aims of this work. Along with archiving the water pressure stability for the WDS, saving energy has been extremely important. From the point of view of the stability, robustness, and saving energy for the WDS, this article proposed a recurrent cerebellar model articulation control system (RCMACS) to maintain the pressure in the water pipe system at desired set points.
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