ANALYSIS OF PV FED VIRTUAL SYNCHRONOUS GENERATOR CONNECTED TO GRID

Abstract

The power industry is currently experiencing a notable transition from a cen tralised power generation model to a distributed generation approach, accompanied by the implementation of smart grid technologies. The aforementioned transition is primarily motivated by the imperative to mitigate energy deficiencies and en vironmental concerns, thereby prompting a concentrated emphasis on renewable energy sources, electric vehicles, and energy storage systems. Solar grid integra tion, a process that entails the integration of solar photovoltaic (PV) power into the national utility grid, has gained widespread adoption on a global scale. This can be attributed to the rising need for environmentally friendly energy sources and the expanding capacity of solar power installations. Electronic inverters are commonly employed to establish a connection between distributed generators (DG) that rely on renewable energy sources and the primary power system. This is due to their advantageous characteristics, such as rapid response time and adaptable control ca pabilities. Nevertheless, electronic inverters exhibit a deficiency in terms of inertia and damping properties, which consequently leads to instability issues when faced with faults or disturbances. In order to address this particular obstacle, a novel control technique known as Virtual Synchronous Machine (VSM) has been devised. The Virtual Synchronous Machine (VSM) replicates the dynamic properties of syn chronous machines, thereby enhancing the stability of the system. The objective of this project is to incorporate photovoltaic (PV) systems into the electrical grid util ising the Virtual Synchronous Machine (VSM) technique. Additionally, the project aims to examine the performance of the integrated system under different scenarios, including variations in irradiance levels and the occurrence of faults.