电气制动暂稳控制的快速估算

A FAST ESTIMATION ALGORITHM OF DYNAMIC BRAKING FOR TRANSIENT STABILITY CONTROL

本文基于扩展等面积法(EEAC)的单机无穷大系统动态等值思想,提出了电气制动暂态稳定控制的快速估算算法。其内容包括:为保证第一摆稳定而应投入的电气制动控制量及持续时间;以及防止出现过制动而进行的第二摆稳定性校核。二个实际系统的仿真计算及一个三机系统的动模实验研究验证了本文算法的正确性。

A fast estimation algoriihm of dynamic brakiny for transient stability control is presented, based on the Extended Equal Area Criterion (EEAC). The algorithm includes: (a) determining the location, amount and duration of dynamic brakiny in orde to keccp the power system from losing stability; (b) examining of the dynamic brakiny to prevent second-swiy instability due to the over-brakiny.The proposed algorithm has been testes by both the numerical simulations of two power systems and the physical simalation on a scaled power system.