Optimal power flow solution of an integrated power system using elephant herd optimization algorithm incorporating stochastic wind and solar power

ABSTRACT

In this paper an improved optimization strategy is proposed to address issues related to uncertainty of the optimum power flow (OPF) considering the cost analysis. Elephant Herd Optimization (EHO) method roused by the crowding conduct of elephant gathering has been modified to achieve the minimization of the objective functions. Initially, the OPF is analyzed with the Newton-Raphson (N-R) approach by considering only conventional resources, later on the wind and PV-based power scheduling is performed. The output power of the wind and PV systems is computed from the Weibull probability distribution function (PDF) and Lognormal PDF. Initially, the objective function is defined to analyze the power loss, voltage deviation, carbon emissions and generation cost. The defined multi-objective function is solved for PV and Wind power generation costs, emission, voltage stability, and losses. The considered constraints are the cost of generation and the risks associated with the renewable energy sources apart from voltage and reactive power limits. Moreover, the penalty deviation charges have also been considered during extreme conditions for sustainable power sources. The proposed approach has been applied to IEEE 57 bus system and the resulting emissions, generation cost, losses and voltage deviation are evaluated and the direct, reserve, and penalty costs of wind and PV are analyzed It is contrasted to standard approaches such as Differential Evolutionary (DE) and Firefly Algorithm (FA) to substantiate the efficiency of the EHO method. The proposed approach is deployed in the MATLAB for various cases.

KEYWORDS:

• Thermal
• wind
• PV
• weibull PDF
• lognormal PDF
• DE
• FA
• EHO
• emission and generation cost

Additional information

Notes on contributors

Muppidi Rambabu

M. Rambabu received his Bachelor degree in Electrical and Electronics Engineering from GMR Institute of Technology Rajam, Andhra Pradesh, India, the Master degree in Electrical Power Engineering from the College of Engineering, JNTU, Hyderabad  and He received his Doctoral degree from Jawaharlal Nehru Technological University, Kakinada. He is presently working as Sr.Assitant Professor in the Department of Electrical and Electronics Engineering, GMR Institute of Technology Rajam, Andhra Pradesh, India. His research interests are Power system analysis, FACTS devices, Power system control , power system optimization and Renewables. He has published several research papers in national and international conferences and journals. He is a member of ISTE.

Gundavarapu VenkataNagesh Kumar

Dr. G.V. Nagesh Kumar received his B.E. degree from College of Engineering, Gandhi Institute of Technology and Management, Visakhapatnam, India, and M.E. degree from the College of Engineering, Andhra University, Visakhapatnam. He received his doctoral degree from Jawaharlal Nehru Technological University, Hyderabad. He is also working as Professor and Head in the Department of Electrical and Electronics Engineering, JNTUA College of Engineering Pulivendula. His research interests include gas-insulated substations, Evolutionary Computation, and FACTS devices. He has published several research papers in reputed National and International Journals and Conferences. He is awarded a certificate of merit and gold medal in recognition of distinguished service as the best researcher by JNTU, Kakinada. He has also received Best Paper Awards in CIPS 2008, RAPCE 2k11, EPEID 2012, NTMRP 2016, IEEE Prime Asia 2013, and Best Poster Award at ICEE 2013. One of his article in ISA Transactions is also listed as Top 25 Articles by Elsevier in 2015. He received Elsevier Outstanding Award for Reviewing in IJEPES, JESTECH, JESIT, Ain Shams Journals. He is Top1% of the Reviewers in Engineering and Cross Platforms awarded by Publons in 2018 and 2019. He is a Life Member of ISTE , IE , SSI, SESI.

Bathina Venkateswara Rao

B. Venkateswararao  received his Bachelor degree in Electrical and Electronics Engineering from Gandhi Institute of Technology And Management(GITAM) Visakapatnam, Andhra Pradesh, India in 2000, the Master degree in Electrical Power Engineering from the College of Engineering, JNTU, Hyderabad in 2007 and He received his Doctoral degree from Jawaharlal Nehru Technological University, Hyderabad in 2015. He is presently working as Associate Professor in the Department of Electrical and Electronics Engineering, V R Siddhartha Engineering College, Vijayawada. His research interests are Power system stability analysis,FACTS devices, Power system control and power system optimization. He has published several research papers in national and international conferences and journals. He is a member of ISTE and IE.B.

Bali Sravan Kumar

Sravana kumar received his Bachelor degree in Electrical and Electronics Engineering from the College of Engineering, JNTU, Hyderabad, the Master degree in Electrical Power Engineering from Gandhi Institute of Technology And Management(GITAM) Visakapatnam, Andhra Pradesh, India  and He received his Doctoral degree from Jawaharlal Nehru Technological University, Kakinada. He is presently working as Assistant Professor in the Department of Electrical and Electronics Engineering, Gandhi Institute of Technology And Management(GITAM) Visakapatnam, Andhra Pradesh, India  . His research interests are Power system stability analysis,FACTS devices, Power system  optimization. He has published several research papers in national and international conferences and journals.