| Title |
A New Algorithm for Unstable Mode Decision in the On-line Transient Stability Assessment |
| Authors |
장동환(Chang, Dong-Hwan) ; 김정우(Kim, Jung-Woo) ; 전영환(Chun, Yeong-Han) |
| Keywords |
Transient Stability ; Stability Index ; Clustering ; Energy Function ; On-Line Dynamic Security Assessment |
| Abstract |
The necessity of online dynamic security assessment is getting apparent under Electricity Market environments, as operation of power system is exposed to more various operating conditions. For on-line dynamic security assessment, fast transient stability analysis tool is required for contingency selection. The TEF(Transient Energy Function) method is a good candidate for this purpose. The clustering of critical generators is crucial for the precise and fast calculation of energy margin. In this paper, we propose a new method for fast decision of mode of instability by using stability indices and energy margin. The method is a new version of our previous paper.[1] Case studies are showing very promising results. |