Optimal Placement of Renewable Energy Generators Using Grid-Oriented Genetic Algorithm for Loss Reduction and Flexibility Improvement

Ekata Kaushik, Vivek Prakash, Om Prakash Mahela, Baseem Khan, Almoataz Y. Abdelaziz, Junhee Hong and Zong Woo Geem
Additional contact information
Ekata Kaushik: School of Automation, Banasthali Vidyapith, Tonk 304022, Rajasthan, India
Vivek Prakash: School of Automation, Banasthali Vidyapith, Tonk 304022, Rajasthan, India
Om Prakash Mahela: Power System Planning Division, Rajasthan Rajya Vidyut Prasaran Nigam Ltd., Jaipur 302005, Rajasthan, India
Baseem Khan: Department of Electrical and Computer Engineering, Hawassa University, Awassa P.O. Box 5, Ethiopia
Almoataz Y. Abdelaziz: Faculty of Engineering and Technology, Future University in Egypt, Cairo 11835, Egypt
Junhee Hong: College of IT Convergence, Gachon University, Seongnam 13120, Korea
Zong Woo Geem: College of IT Convergence, Gachon University, Seongnam 13120, Korea

Energies, 2022, vol. 15, issue 5, 1-20

Abstract: Optimal planning of renewable energy generator (REG) units helps to meet future power demand with improved flexibility. Hence, this paper proposes a grid-oriented genetic algorithm (GOGA) based on a hybrid combination of a genetic algorithm (GA) and a solution using analytical power flow equations for optimal sizing and placement of REG units in a power system network. The objective of the GOGA is system loss minimization and flexibility improvement. The objective function expresses the system losses as a function of the power generated by different generators, using the Kron equation. A flexibility index (FI) is proposed to evaluate the improvement in the flexibility, based on the voltage deviations and system losses. A power flow run is performed after placement of REGs at various buses of the test system, and system losses are computed, which are considered as chromosome fitness values. The GOGA searches for the lowest value of the fitness function by changing the location of REG units. Crossover, mutation, and replacement operators are used by the GOGA to generate new chromosomes until the optimal solution is obtained in terms of size and location of REGs. A study is performed on a part of the practical transmission network of Rajasthan Rajya Vidyut Prasaran Nigam Ltd. (RVPN), India for the base year 2021 and the projected year 2031. Load forecasting for the 10-year time horizon is computed using a linear fit mathematical model. A cost–benefit analysis is performed, and it is established that the proposed GOGA provides a financially viable solution with improved flexibility. It is established that GOGA ensures high convergence speed and good solution accuracy. Further, the performance of the GOGA is superior compared to a conventional GA.

Keywords: power system flexibility; grid-oriented genetic algorithm; renewable energy generator; transmission system (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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