Authors:
Subbulakshmy Ramamurthi, P. Velmurugan, S. Manivannan, Shobana Devendiren
Addresses:
Department of Electrical and Electronics Engineering, SRM Institute of Science and Technology, Ramapuram, Chennai, Tamil Nadu, India. Department of Electrical and Electronics Engineering, St. Joseph’s College of Engineering, Chennai, Tamil Nadu, India. Department of Electrical Engineering, Panimalar Engineering College, Chennai, Tamil Nadu, India.
Abstract:
This paper presents the performance evaluation of a High Step-Up Quadratic Boost Converter (QBC) integrated with a self-lift circuit, controlled using Sliding Mode Controller (SMC) and Fractional Order Proportional-Integral-Derivative (FOPID) controllers. The QBC topology is selected for its ability to achieve high voltage gain, which is essential for applications such as renewable energy systems and high-power DC loads. The study aims to compare the effectiveness of both controllers in maintaining a stable output voltage while improving the dynamic response of the converter. Simulation results demonstrate that both controllers successfully regulate the output voltage; however, the FOPID controller exhibits superior time-domain characteristics. It achieves a faster settling time, reduced overshoot, and lower steady-state error compared to the SMC. These improvements enhance the overall stability and transient response of the system, making the FOPID controller a more suitable choice for high-performance applications. The findings suggest that adopting FOPID control can significantly improve the efficiency and reliability of high-gain DC-DC converters. This research highlights the advantages of advanced control techniques in power electronics and provides valuable insights into optimising converter performance for modern energy systems. The proposed approach provides a robust solution for applications that require efficient and precise voltage regulation.
Keywords: Quadratic Boost Converter; Sliding Mode Controller; Renewable Energy Systems; High-Power DC Loads; Reduced Overshoot; High-Gain DC-DC Converters; Dynamic Performance; Self-Lift Circuit.
Received: 15/10/2024, Revised: 03/12/2024, Accepted: 30/12/2024, Published: 07/06/2025
DOI: 10.64091/ATIEL.2025.000125
AVE Trends in Intelligent Energy Letters, 2025 Vol. 1 No. 1 , Pages: 52-60