An Improved Switched Inductor Switched Capacitor Based High Gain Converter for EV Application

The growing demand for electric vehicles (EVs) necessitates sustainable and efficient charging solutions. Solar energy serves as an eco-friendly alternative to reduce reliance on conventional grids. This work introduces a high-gain, nonisolated Improved Switched Inductor Switched Capacitor (iSISC) converter to step up the low and fluctuating solar panel voltage to meet EV requirements. By integrating a switched inductor and switched capacitor configuration with two lower-rated switches, the converter minimizes current stress and enhances reliability. The design encompasses gain derivation, small-signal modeling, and parameter tuning for inductors and capacitors. Stability is improved through Lead Compensation, and comparative analysis with existing converters demonstrates superior performance. MATLAB/Simulink simulations for a 100W converter operating at 24V/144V validate the system's stability.