Development of a New Tool for Dynamic Security Assessment Using Dynamic Security Region

Dynamic security region (DSR) gives system engineers systematic and global information about the feasible operation region in power injection space. This paper is a result of an investigation into the use of DSR concept and its effective application in power systems. It particularly concerns with developing a software-based tool for the dynamic security assessment in the online operation environment. A fast direct method used for computing hyper-plane boundary of the DSR is described. In virtue of being practical of the direct method, 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, result visualization, with the related group reduction technology is emphasized.