Standalone PV System Integrated with Hysteresis Current Controlled Inverter using MPPT Techniques

Abstract

PV System is one of the most clean and preferable sources of energy. In this article, the PV System is used in special type of inverter known as Hysteresis Current Control (HCC) Inverter. The proposed system incorporates boost converter which uses tracking algorithm known as maximum power point tracking (MPPT). Various tracking mechanisms are available for extraction of maximum power, Two MPPT techniques used here are Perturb and Observe (P&O) method and Incremental Conductance (IC) method. The MPPT methods help the system to function more effectively. The output of the converter is given to a two level inverter. The inverter works on current control technique in which line current is forced to follow a reference current within a specific band. At last, the current output harmonics of the proposed system is compared with MPPT and without MPPT technique by using MATLAB simulation environment. Considering the THD values, it is found that MPPT optimized PV system gives better result.