Experimental Observation of Power Quality Problems in Grid-Tie SPV Systems

Abstract

The dynamic production of a grid tie Solar Photovoltaic (SPV) of a distribution network is analyzed and hardware results are furnish in this paper. In order to fluctuation environment of the SPV power plant, the grid integration requires stable and steady power injection with good Quality of Power. Hence, the Power Quality (PQ) analysis has been carried out under different climate conditions of a 10 kW Solar Power Plant (SPP). This SPP can function in grid tie or in isolated mode. The proposed SPV power plant system is modelled and its performance is studied. This integrating model is composed of a boost converter, Maximum Power Point Tracking (MPPT) control, inverter and filter. It also explains the behavior of system response whether it is stable and unstable condition. It is analyzed that the existence of a high pierce grid connected SPV system will exhibit low PQ issues like voltage variations and harmonics. To study this effect a 10 kW SPP is developed for verifying the performance of the system.