چکیده (انگلیسی):

The main objective and an innovative design of this work is to improve the energy efficiency by controlling
the variables flow and level in a hydroelectric power plant using Programmable Logic Control (PLC)-Human
Machine Interface (HMI) and fuzzy logic approach. This project will focus on design and development of flow
and level controller for small scale hydro generating units by implementing gate control based on PLC-HMI
and Fuzzy Logic Control (FLC). So far there is no other better performing control scheme, with uncomplicated
approach, in order to match and satisfy the dynamic changes in load demand. In this project, FLC will be
applied to flow and level control for small scale hydro generating units is proposed. A lab scale experimental
setup is made-up as prototype model for flow and level control and simulation outputs were achieved, using
PLC-HMI based fuzzy controller scheme. The hardware set up is designed with 5 stages in the tank 1 and 2
stages in the tank 2. Based on the outputs of the level sensors from tanks 1 and 2, the ladder logic will perform.
B&R Industrial Automation PLC inbuilt with 24 digital inputs and provides 16 potential free outputs is used to
perform control action. Finally, the performance of the proposed scheme is evaluated by simulation results by
comparing with conventional controllers output using the data collected from the hydroelectric power plant.
The merits of the proposed Fuzzy scheme over the conventional method are spotlighted.