Multi-Objective Optimal Dispatch Solution of Solar-Wind-Thermal System Using Improved Stochastic Fractal Search Algorithm

Abstract

Abstract-This paper presents solution of multi-objective optimal dispatch (MOOD) problem of solar-wind-thermal system by improved stochastic fractal search (ISFSA) algorithm. Stochastic fractal search (SFSA) is inspired by the phenomenon of natural growth called fractal. It utilizes the concept of creating fractals for conducting a search through the problem domain with the help of two main operations diffusion and updating. To improve the exploration and exploitation capability of SFSA, scale factor is used in place of random operator. The SFSA and proposed ISFSA is implemented and tested on six different multi objective complex test systems of power system. TOPSIS is used here as a decision making tool to find the best compromise solution between the two conflicting objectives. The outcomes of simulation results are also compared with recent reported methods to confirm the superiority and validation of proposed approach.

Dynamic Modelling of a Flexible Beam Structure Using Feedforward Neural Networks for Active Vibration Control

“…Although the SFS algorithm is relatively a new metaheuristic approach, there are several applications of SFS and its variant developments so far in the literature. The SFS algorithm has been applied to solve optimisation problems in control engineering area [30,31], parameter identification [32], training artificial neural networks (ANNs) [33,34], trajectory planning [35], optimal relay coordination problem [36], system reliability optimisation problem [37], wind integrated multi-objective optimal power dispatch problem [38][39][40], economic production quantity [41], environmental-economic dispatch problem [42], surface grinding process [43], protein structure prediction [44] and many more. The results show promising capabilities of SFS algorithm to outperform other established metaheuristic approaches.…”

Multi-Objective Optimal Power Flowfor a Thermal-Wind-Solar Power System

“…An OPF approach considering the entire system to determine the optimal operating strategy and cost optimization scheme as well as the reduction of emissions for micro-grid is proposed in [8]. Reference [9] proposes the solution of multi-objective optimal dispatch problem of solar-wind-thermal system by improved stochastic fractal search algorithm. Reference [10] presents an application of a scenario-based method for risk constrained stochastic OPF problem in electricity utilities using a twostage stochastic programming framework considering various uncertainties.…”