Development of an Intelligent Control Strategy for a Hybrid Energy System Integrated with the HEV Drive

Abstract

Efficient and accurate performance of a control system plays a major role in developing an energy-efficient intelligent control system (ICS) for the Grid-connected Hybrid Electric Vehicle (HEV) applications. The ICS constitutes the control of hybrid energy split among the renewable sources (PV and Fuel Cell), HEV drive control is achieved by controlling the grid-connected inverter and bi-directional DC–DC converter. MPPT is designed in ICS to extract the maximum amount of power from solar PV. RESS control provides the maximum amount of extracted energy from PV and FC. In this proposed system, a bi-directional DCDC converter along with the storage system is designed to transfer energy in forward and reverse directions from source to storage element and storage element to load end in the process of charging and discharging of the battery which constitutes the bidirectional energy transfer. In addition to these control operations, ICS provides HEV drive control by controlling the grid-connected inverter. The operation of the developed ICS is compared with the conventional controllers and the results show that the proposed system with ICS is highly efficient than conventional controllers. The proposed system is tested with a three-phase load and HEV drive, both speed and torque controls are performed for the grid-connected HEV drive, and the system is tested with the different standard drive cycles.

KEYWORDS:

• Bi-directional converters
• Grid
• Hybrid electric vehicles
• HEV drive
• Intelligent control systems
• Powertrain technology
• Test drive cycles

DISCLOSURE STATEMENT

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

Additional information

Notes on contributors

Appalabathula Venkatesh

Appalabathula Venkatesh is currently a full-time research scholar at The National Institute of Engineering, Mysuru, Karnataka, India in the Department of Electrical and Electronics Engineering. He received the undergraduate degree in 2014 in electrical and electronics engineering and he received the post-graduate degree in control systems engineering in 2018. His publications include seven journal papers and one book chapter. His research area of interest includes fuel cell technology, non-linear systems stability analysis, intelligent control systems, heuristic optimization techniques, renewable energy source integrations, hybrid electric and fuel cell vehicles. Email: [email protected]

Shankar Nalinakshan

Shankar Nalinakshan is currently working as associate professor at The National Institute of Engineering, Mysuru, Karnataka, India in the Department of Electrical and Electronics Engineering. He received his PhD degree from the National Institute of Technology, Calicut in 2018. He obtained his undergraduate and postgraduate degrees from Anna University in 2007 and 2010, respectively. His publications include 18 papers in both international journals and conferences and published three book chapters. His areas of interest include process dynamics and control, biomedical instrumentation, control and instrumentation and fuel cell technology. Corresponding author. Email: [email protected]