PROJECT TITLE :

An Adaptive Tuning Mechanism for Phase-Locked Loop Algorithms for Faster Time Performance of Interconnected Renewable Energy Sources

ABSTRACT:

Interconnected renewable energy sources (RES) require fast and accurate fault ride through (FRT) operation, in order to support the ability grid, when faults occur. This paper proposes an adaptive part-locked loop (adaptive ) algorithm, which will be used for a faster and additional correct response of the grid-aspect converter (GSC) control of a RES, significantly beneath FRT operation. The adaptive is based on modifying the tuning parameters of the , per the type and voltage characteristics of the grid fault, with the purpose of accelerating the performance of the PLL algorithm. The proposed adaptive tuning mechanism adjusts the PLL parameters in real time, per the proposed fault classification unit, in order to accelerate the synchronization performance. The useful result of the proposed adaptive tuning mechanism on the performance of is verified through simulation and experimental results. Furthermore, the advantages of using a faster synchronization methodology on the management of the GSC of RES are demonstrated in this paper. Additionally, a new synchronization technique named frequency–section decoupling (FPD)- is presented, that applies an FPD technique from the literature within the structure of , with the aim of improving the performance of . Finally, t- e adaptive tuning mechanism proposed in this paper is combined with the FPD- in order to introduce the adaptive FPD- , which presents a fair faster time performance and is a perfect resolution for the synchronization of RES under grid faults.