The phenomena of isolated stability domain (ISD) found in transient stability assessment of a real power system are analyzed with the classical one-machine infinite-bus (OMIB) system.

• 针对实际系统暂态稳定评估中遇到的“孤立稳定域”现象,用经典单机无穷大母线(OMIB)系统进行了详细的稳定分析。