Conventional and Metaheuristic Optimization Algorithms for Solving Short Term Hydrothermal Scheduling Problem: A Review

Muhammad Salman Fakhar,Sanjeevikumar Padmanaban,Muhammad Ahmad Iqbal,Akhtar Rasool,Muhammad Khizer,Syed Abdul Rahman Kashif,Muhammad Anas Baig,Sheroze Liaquat

doi:10.1109/access.2021.3055292

Abstract

Short term hydrothermal scheduling (STHTS) is a non-linear, multi-modal and very complex constrained optimization problem which has been solved using several conventional and modern metaheuristic optimization algorithms. A number of research articles have been published addressing STHTS using different techniques. This article presents a comprehensive review of research published for solving the STHTS problem in the last four decades.

Highlights

Short-term hydrothermal scheduling Short term hydrothermal scheduling (STHTS) is a non-linear and multi-modal optimization problem, which can be presented in cascaded or non-cascaded form
The main objective function of STHTS problem is to minimize the cost of energy generation from the thermal generators, which is a function of the fuel costs, subjected to equation (2)
3) Conventional optimization algorithms are mostly gradient based and they stick to the local optima and they do lead to premature convergences to local optima and take high convergence time in attempt to reach global optima

Summary

INTRODUCTION

Short-term hydrothermal scheduling STHTS is a non-linear and multi-modal optimization problem, which can be presented in cascaded or non-cascaded form. Equation (1), is the main objective of the STHTS problem, i.e. to minimize the cost of the scheduling of hydro and thermal generators. The non-cascaded short-term hydrothermal scheduling problem (NCSTHTS), deals with the economic dispatch of one water reservoir based hydel power plant and an equivalent or composite of many thermal power plants. The cascaded short-term hydrothermal scheduling (CSTHTS) problem deals with the combined economic operation of a chain of multiple reservoirs present on the same stream in series, i.e. one reservoir-based power plant is downhill the other reservoir-based power plant In such problems, there can be several thermal generating units, but are usually presented as individual units, or as an equivalent thermal unit. Both these points improve the the energy utilization while achieving the dispatch of the thermal amd hydel power plants

CONVENTIONAL OPTIMIZATION METHODS APPLIED ON STHTS PROBLEM

NO FREE LUNCH THEOREM AND IMPORTANCE OF STATISTICAL TESTS FOR STHTS PROBLEM

DISCUSSION

CONCLUSION