Investigation of the Critical Clearing Time of PowerSystem with Synchronous Machine Model Including Saliency | Science Publications

American Journal of Applied Sciences

Prechanon Kumkratug¹ 

关键词: Power system stability;    transient stability;    critical clearing time;    FACTS devices;    salient pole;    non-salient pole;   

DOI  :  10.3844/ajassp.2012.227.230

学科分类：自然科学（综合）

来源: Science Publications

【 摘 要 】

Problem statement: Most of synchronous generator applied in power system is the salient pole type. Most of previous researches use non-salient model to evaluate the critical clearing time. Thus the results of critical clearing time of power system may be error. Approach: Thus this paper investigate the critical clearing time of power system with synchronous machine. The mathematical model of non-salient pole and salient pole synchronous machine model in power system are symmetrically derived. The critical clearing time of both models are tested and compared on various cases. Results: The critical clearing time of the power system with synchronous including saliency is slightly higher that of non saliency model. Conclusion: It is found from simulation results that even swing curve of both models is obviously different. Their critical clearing times are slightly different.

【 授权许可】

Unknown