Low voltage ride through and fault ride through capability of 40kw PV model grid connected

Nowadays, progressive grow in renewable energy sources such as (wind, solar energy) pursued distribution companies to update its code in order to achieve maximum power available and guarantee electrical reliability and quality. Egypt diversify many techniques to facilitate introducing new renewable energy technologies, such as, a new program to disseminate PV models into the grid through installing it over the buildings (Roof Top Units) this program targets about 1000 building in its first phase. This paper discuses two cases, first case(normal operation) of PI controller for PV model to achieve Maximum available power, which is tuned by try and error techniques, and second case (fault case) PV model with multi difference short types with Droop controller techniques to achieve Fault ride through capability. 40 KW three phase on-grid PV Model has been simulated by MATLAB/SIMULINK software which leads to show the different cases under fault/ normal conditions. Finally, simulation analysis has been shown, with comparison between different cases depending on variable performance error index (absolute error, square error, performance index error) for each case which prove LVRT and FRT capability for our proposal controller techniques (PI, Droop controller) in normal/fault condition.