A new transient energy function
A new transient energy function
复制标题
DOI：
10.1360/02ye9049
复制
发表时间：
2002-08
期刊：
影响因子：
--
通讯作者：
Dazhong Fang;W. Song;Yao Zhang
中科院分区：
文献类型：
--
作者：
Dazhong Fang;W. Song;Yao Zhang
从规范化的发电机转子相对于电力系统惯性中心的运动方程出发，将故障后的电力系统动态行为类比为n维欧氏空间中质量为1.0的质点的运动。为移动粒子定义旋转坐标轴。将多机电力系统的暂态稳定问题转化为简单的一维质点轴向运动问题。在此基础上，提出了暂态能量函数（NCTEF）的新概念，并将其应用于电力系统暂态稳定分析。通过对新英格兰10机系统的算例分析，验证了该方法的合理性。
Starting from normalized generators’ equations of rotor motion with respect to the center of inertia of power systems, post-fault power system dynamic is analogized as a motion of a particle with 1.0 mass in an n-dimensional Euclidean space. A rotational coordinate axis is defined for the moving particle. Transient stability of a multi-machine power system is transformed into a simple one-dimensional motion of particle on the axis. Based upon the above new idea, a new concept transient energy function (NCTEF) is proposed for transient stability assessment of power systems. Case studies on the 10-generator New England power system verified the rationality of NCTEF.