Multi-objective modeling and optimization of the SOFC stacks based on the unit cost of electric energy produced, efficiency and output power using fractional-order Kho-Kho optimization algorithm

ABSTRACT

Energy generation systems based on FC (fuel cell) are viewed as a viable substitute for those that simply rely on thermodynamic cycles in the power production field. In this paper, a 10-stack SOFC systems performance and optimization of that utilizing a newly improved optimizer known as the Fractional-order Kho-Kho optimization method will be presented in this paper. The multi-objective optimization approach is applied in the optimization phase to achieve the desired performance goals for the SOFC system. With the help of this technique, the desired system can be optimized in accordance with two objective functions: first, the electric power of the system can be maximized, while the equalized price of the electricity produced is minimized. Then, the electrical efficiency of the system can be maximized, while the equalized price of the electricity produced is minimized. The results show that, by reducing the coefficient and increasing efficiency, optimal solutions were achieved with higher electricity prices. It is observed that an increase in energy prices led to a 9% increase in productivity, whereas a 15% increase resulted in only a 2% increase. The findings demonstrate that multi-objective optimization may be used as a sophisticated analytical tool as well as a guiding element for decision-makers utilizing such a system.

KEYWORDS:

• SOFC
• multi-objective optimization
• unit cost of electric energy
• efficiency
• output power
• solid oxide fuel cell
• fractional-order Kho-Kho optimization algorithm

Acknowledgments

Natural Science Foundation of Gansu Province (Grant No. 21JR7RA237).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Wei Tengfei

Wei Tengfei College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Han Wenhe

Han Wenhe Fiberhome Communication Technology Co., Ltd, Wuhan 430000, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Wei Xianglin

Wei Xianglin College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Zeng Xianqiang

Zeng Xianqiang College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Zhang Liangliang

Zhang Liangliang College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning, and system restructuring. He has authored and co-authored books in the Engineering area, book chapters in international publishers, and more papers in international journals and conference proceedings. Also, he collaborates with several international journals as a reviewer board and works on an editorial committee of international journals.

Shi Binyuan

Shi Binyuan Gansu Power Transmission and Transformation Engineering Co., Ltd, Lanzhou 730050, China His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Zhang Zhixun

Zhang Zhixun Gansu Power Transmission and Transformation Engineering Co. Ltd., Lanzhou, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning, and system restructuring. He has authored and co-authored books in the Engineering area, book chapters in international publishers, and more papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer board and works as an editorial committee of international journals.

Zhang Haiyan

Zhang Haiyan Key Laboratory of Gansu Advanced Control for Industrial Processes, Lanzhou University of Technology, Lanzhou 730050, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Zhang Hongliang

Zhang Hongliang College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Jin Hai

Jin Hai College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China. His research interests are in the application of artificial intelligence and heuristic optimization methods to system control design, operation and planning and system restructuring. He has authored and co-authored of books in Engineering area, book chapters in international publishers and more than papers in international journals and conference proceedings. Also, he collaborates with several international journals as reviewer boards and works as editorial committee of international journals.

Nasser Yousefi

Nasser Yousefi was born in 1985 in Tabriz, Iran. He received his B.Sc. and M.Sc. degree in Electrical Engineering from Azad University, Iran, 2009 and 2011. From 2011 until now, he has been a Teaching Assistant with the Department of Electrical Engineering, Islamic Azad University, Iran. Since March 2008. In 2014, Mr. Yousefi became a member of the IEEE reviewer group. His research areas include power system analysis, electricity market, power system protection, hybrid energy system, uncertainty modeling, and risk management.