Research into the application of a VARPRO-based approach to modal analysis of ambient data from the power grid may improve on existing methods to estimate system damping. This would increase situational awareness of potential system instabilities. Initial exploratory work has involved a first pass at recently acquired data, which shows promising results that warrant further investigation. Direct application of VARPRO curve-fitting provides excellent results compared to brake-test ringdown.
Market power gives certain market participants the ability to manipulate the market to their advantage. In our research we identify resources which have the potential for market power either individually or within a small group based on sensitivity information that can be obtained from an optimal power flow. Specifically we cluster generators with the ability to adjust prices without affecting dispatch, potentially enabling them to set prices. This project was designed to develop and demonstrate robust algorithms that can be applied to ISO-scale systems.
The purpose of this study was to determine the best way to incorporate “proxy-limits” in a DCOPF to preserve features of the solution of a more detailed ACOPF. Specific voltage and stability limits cannot be directly represented in a DCOPF and are indirectly included as line flow limits. This research sets out to determine the best way to set proxy limits to preserve the dispatch and prices of the ACOPF, in a DCOPF representation.