Improved Transient Analysis in Maximum Power Point Tracking for PV Array Using Sliding Mode Controller

A PV array acts as a transducer that transforms energy from the sun into its electrical equivalent using photovoltaic effect. The converted energy is variable. It majorly depends on irradiations and ambient temperature. Thus, a PV system requires a controller to extract maximum constant power. There are various controllers available, in this paper, we have used a sliding mode controller (SMC). It is a non-linear controller that brings robustness to the system by altering the dynamics of a system using a discontinuous control signal. On the other hand, if we use a PID controller, the transient response of that system is lower as compared to the SMC. The sliding mode controller gives improved transient responses like rise time, settling time, and overshoot. This paper compares the Simulink results and proves that the sliding mode controller is better than the PID controller.