PV-Piezo Hybrid Grid Connected System

Increasing population, with never ending but rising electrical energy demand, emphasis towards the need of more focused research in the domain of renewable/alternate sources for energy.Efficient use of installed capacity of existing renewable/non-renewable energy resources along with addition in capacity is required to curtail the future needs. Due to continuous motivation towards promotion & installation of renewable energy resources by Government sector, in our developing Nation; Grid connected PV systems are being installed and continue to install on large scale. In this paper, integration of Piezo-electric crystals along with installed grid connected PV system is proposed. Proposed models may find suitable for public places, metro stations, road underpasses etc. But alternate sources are alone not able to match with the energy requirements of increasing population. In proposed system, I&C MPPT controller is used to ensure extraction of maximum possible energy from PV source and inverter control is implemented to keep 3-phase voltage and frequency constant as per desired value. Piezo electric stack after rectification process is hooked to the DC bus through a DC-DC converter. To validate the performance of the desired system, proposed model is simulated in MATLAB/Simulink environment and satisfactory results are obtained. However, a detailed analysis of performance is required for understanding the techno-economic benefits of the designed system.