A Comprehensive Review of Small-Signal Stability and Power Oscillation Damping through Photovoltaic Inverters

This paper focuses on the methods that ensure rotor angle stability of electric power systems, which is most frequently analyzed with small-signal models. Over past several decades, system stabilizers (PSSs) for conventional excitation systems were main tools improving electromechanical oscillatory modes. In last decade, oscillation damping (POD) control implemented in photovoltaic (PV) inverters has been considered an alternative to PSSs. As PV generation undergoes massive rollout due policy directions and renewable energy source integration activities, it could potentially be used as a damping, crucial sustaining remaining in-service synchronous generators. Several studies have already dedicated development different strategies. contributes existing research by providing comprehensive review effects stability, well recent evolution POD through inverters. The features impacts various ways realize controllers are assessed summarized this paper. Currently, detailed information discussions practical application inverter PODs not available. is, thus, intended initiate relevant discussion propose possible implementation approaches concerning topic under study.