مشخصات پژوهش

The financial value of security service provided by dual-branch controller of a large-scale photovoltaic system (LPS) has been investigated in this paper. To perform this task, it is nec- essary to investigate the impact of LPS on small-signal stability of power network. To study the impact and performance of LPS on low-frequency oscillatory modes, a systematic scheme is developed to achieve an accurate model of multi-machine power network in- cluding of the LPS technology. A fully-described LPS model with all network-relevant control functions will be obtained. The pro- posed model has been then employed in the study of financial com- pensation strategy of security service provided by the LPS con- troller. The proposed compensationstrategyinthispaperisbased on correlation of swing damping rate (SDR) criterion with genera- tion cost (GC) criterion as dynamic and pecuniary indices, respec- tively. A weighted sum of performance and robustness indices is considered for SDR. The financial profit created by dual-branch controller of LPS as ancillary service (AS) is evaluated by a two- purpose optimization based on SDR and GC indices. The proposed strategy is tested on a modified 6-machine 3-area power system. Comprehensive discussion is provided to describe the performance of the presented method.