Title: Whale optimisation algorithm-based controller design for reverse osmosis desalination plants

Authors: Natwar Singh Rathore; V.P. Singh

Addresses: Department of Electrical Engineering, National Institute of Technology, Raipur, 492010, India ' Department of Electrical Engineering, National Institute of Technology, Raipur, 492010, India

Abstract: In this contribution, whale optimisation algorithm (WOA)-based controllers are presented for reverse osmosis (RO) desalination plants. Two proportional-integral-derivative (PID) controllers are designed for flux and conductivity of RO plant model. The tuning of these controllers is carried out with a newly proposed algorithm, i.e., WOA. The minimisation of integral-of-squared-error (ISE) is considered as performance index for design of objective function in the problem. The performance of proposed controllers is compared with other optimisation algorithms-based controllers. Simulation results show the supremacy of WOA-based controllers over the other controllers. The proposed controllers are found best for RO desalination plants in terms of control of RO unit model.

Keywords: conductivity; desalination; flux; integral-of-squared-error; ISE; proportional-integral-derivative; PID controller; reverse osmosis; RO; whale optimisation algorithm; WOA.

DOI: 10.1504/IJIEI.2019.097552

International Journal of Intelligent Engineering Informatics, 2019 Vol.7 No.1, pp.77 - 88

Received: 07 Sep 2017
Accepted: 24 Feb 2018
Published online: 28 Jan 2019 *

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