Simulation-Based Study of Self-Excited SRG by Using Nonlinear ‎Models and Open-Loop Excitation Strategies

  • Authors

    • V. Balasubramanian Department of Electrical and Electronics Engineering, Sathyabama Institute of Science and Technology, Chennai, India
    • S. Radhika Department of Electronics and Communication Engineering, Chennai Institute of Technology, Chennai
    • V. Senthil Nayagam Department of Electrical and Electronics Engineering, Sathyabama Institute of Science and Technology, Chennai, India
    https://doi.org/10.14419/fwa09g88

    Received date: June 17, 2025

    Accepted date: July 27, 2025

    Published date: August 4, 2025

  • Self-Excited SRG; Nonlinear Models; Open-Loop Excitation Strategies; Nonlinear Model

  • Abstract

    This research offers a comprehensive examination of the operational principles and dynamic characteristics of the Switched Reluctance Gen‎erator (SRG) when functioning in self-excited mode. The focus is on the rotor's inherent inclination to align with the path of least reluctance, ‎requiring the separate activation of each phase via appropriate power electronic converters and control systems. Recent studies emphasize ‎the increasing importance of the SRG in renewable energy and automotive industries. The study highlights the shortcomings of linear mod‎eling for precise simulation, especially when neglecting magnetic saturation and nonlinearities in the machine. A nonlinear model that in‎cludes magnetic saturation and utilizes a Fourier series-based inductance profile was developed in MATLAB/Simulink using data from an ‎existing prototype. The excitation approach used a parallel capacitor alongside a half-bridge converter, and simulations were performed in ‎open-loop mode. The research examined differences in speed, actuation angles, and load conditions, uncovering their effects on both transi‎ent and steady-state voltage performance. Results indicate that angle modulation greatly influences ignition timing and overall system effi‎ciency. This study enhances the basic comprehension of SRG functioning under self-excited conditions and aids future uses in energy-efficient systems.

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  • How to Cite

    Balasubramanian, V. ., Radhika, S. ., & Nayagam , V. S. . (2025). Simulation-Based Study of Self-Excited SRG by Using Nonlinear ‎Models and Open-Loop Excitation Strategies. International Journal of Basic and Applied Sciences, 14(4), 84-97. https://doi.org/10.14419/fwa09g88