考虑暂态稳定紧急控制的扩展等面积法

The Extended Equal Area Criterion (EEAC) Including Transient Stability Emergency Control

本文提出了考虑暂稳紧急控制的扩展等面积法(EEAC)的改进算法,涉及的紧急控制措施包括:快关汽门、电气制动和切机。本文的方法能够有效地处理在紧急控制作用下的故障电力系统的第一摆和第二摆暂稳分析问题,可以应用于在线或离线的快速暂稳分析和紧急控制快速估算、设计整定和校核。两个实际系统模型的仿真计算验证了本文算法的正确性及良好的精度。

On the basis of the improved EEAC method, the transient stability analysis with emergency control is dealt with in this paper, the concered control means includes: fast valving, dynamic braking and generator tripping. The proposed method, which can effectivly analyze the first and second swings stability of power system under such e-mergency controls, is adapt to the fast assesment of transient stability and fast estimation of emergency controls. The effectiveness of the proposed method has been tested by the simulations of two reduced power systems.