Details

Autor(en) / Beteiligte

• Jingling Lu
• QunXing Ji
• YongLi Zhu

Titel

Power grid vulnerability assement based on energy function

Ist Teil von

• 2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies, 2008, p.1039-1043

Ort / Verlag

IEEE

Erscheinungsjahr

2008

Quelle

IEEE

Beschreibungen/Notizen

• The traditional certainty assessment method of the power system security is difficult to consider its randomness, at the same time it is difficult to provide the safe and health realtime information of power network quantitatively and intuitively. In this paper, the traditional concept of security of the power system is expanded and network vulnerability is introduced. Considering the probability of contingency, transient energy function method is adopted, the indicators of power system vulnerability and thresholds are given. Power system is evaluated in the context of transient security. A large amount of time is saved while the correctness of security analysis is ensured. The rationality and effectiveness of the proposed method is verified by the results of calculation results.