Visualization tool for transient stability monitoring of bulk power systems based on DSR

Dynamic security region (DSR) gives power system engineers systematic and global information about the feasible operation region. This paper is a result of an investigation into the use of DSR concept and its effective application in bulk power systems. It particularly concerns with developing a software-based tool for the transient stability monitoring in the on-line operation environment. A practical DSR solving method based on massively parallel computer clusters is described, and a new software package, named power system dynamic security region (PSDSR) is developed. Following a brief discussion about the main requirements, the paper gives a summary of the development of PSDSR from both the software architecture and the function implementation. A most distinctive character, the practical application in monitoring the cut-set power flows, with result visualization is emphasized.