In recent years, more and more researchers have realized that voltage stability of power system is a dynamic phenomenon, and voltage collapse point can be predicted in advance.
近些年，越来越多的人认识到电力系统电压稳定问题是一个动态问题，而电压崩溃点是可以提前预知的。
However, the danger of frequency collapse always exists, and has a great impact for power system running.
但是，频率崩溃的危险是始终存在的，并对电力系统的安全稳定运行造成了很大的影响。
Under malignant emergency conditions, the frequency of power system seriously and consequently drops down which lead, system to collapse and a large area outage.
在突然恶性事故情况下，电力系统产生严重的频率下降，导致系统崩溃和大面积停电。
Under the condition of suitable formulation, the power system can be away from the voltage collapse point, through controlling the left eigenvector of voltage collapse point.
按照系统的鞍结分叉点处的左特征向量来控制系统的行为可以最快地远离电压崩溃点。
Then two factors projected America into world affairs: its rapidly expanding power, and the gradual collapse of the international system centered on Europe.
后来，两大因素致使美国置身于世界事务之中。其一是它迅猛膨胀的国力，其二是以欧洲为中心的国际体系的渐趋崩溃。
When the load is near to generators, the possibility of voltage collapse caused by system voltage oscillate and the power limit corresponding to saddle-node bifurcation will decrease.
负荷越靠近发电机，系统电压将越不易发生振荡失稳，但鞍结分岔对应的最大功率传输极限将减小。
If the voltage stability index approaches to 1, it shows that the power system draws near voltage collapse.
如果系统的电压稳定指标趋近1，则表明系统临近电压崩溃。
Out-of-step splitting which is an important measure to assure safe running of power system, is the last line of defence to assure the whole power network not to collapse completely.
失步解列作为保证电力系统安全运行的重要措施，是保证整个电网不致完全崩溃的最后一道防线。
Recent studies on the power systems collapse prevention and the mechanism of cascading failures have shown that the self-organized criticality (SOC) is the character of power system blackouts.
概述了复杂网络理论在电力系统中的应用，重点说明了利用复杂网络分析大停电事故的方法和意义，以及如何从复杂网络的角度来分析和研究电力网络的动态特性。
Recent studies on the power systems collapse prevention and the mechanism of cascading failures have shown that the self-organized criticality (SOC) is the character of power system blackouts.
概述了复杂网络理论在电力系统中的应用，重点说明了利用复杂网络分析大停电事故的方法和意义，以及如何从复杂网络的角度来分析和研究电力网络的动态特性。
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