基于暂态能量的电力系统切机控制措施  

Generator tripping strategy based on transient energy of power system

作　　者：王佳丽[1] 刘涤尘[1] 廖清芬[1] 岑炳成[1] 李顺[1] 齐晓曼 

机构地区：[1]武汉大学电气工程学院,湖北武汉430072 [2]国网上海电力科学研究院,上海200437

出　　处：《电力系统保护与控制》2016年第10期1-9,共9页Power System Protection and Control

基　　金：国家电网公司项目"多区域安控系统协调及在线诊断;辅助决策技术研发应用"

摘　　要：为了实现更准确有效的电力系统紧急控制,提出了一种考虑惯性时间常数变化的切机量计算方法,并在加速机群进行分配。该方法基于系统等值二机系统的暂态过程能量进行求解,所需数据均可通过广域测量得到,不需要依赖电力系统的具体模型和参数,可以实现对电力系统的实时控制,计算量小,方便灵活。同时考虑了在切机过程中系统的惯性时间常数的变化,使得切机控制更加准确。通过对新英格兰10机39节点算例的仿真分析,验证了该控制方案的有效性。In order to achieve a more accurate power system emergency control measures, this paper proposes a method for calculating the amount of generation tripping considers inertia time constant change and allocates in accelerating generators. The method is based on the equivalent relative kinetic energy in the double-machine system, it does not depend on the specific model and power system parameters, can achieve real-time control of the power system, and needs a small amount of calculation, which is convenient and flexible. Taking the change of system inertia time constant into account in the process of generation tripping, a more accurate generation tripping measure is achieved. Simulation on the New England 10-generator 39-bus system verifies the effectiveness and a certain practical engineering value of the proposed scheme.

关 键 词：暂态稳定 切机 惯性时间常数 实时控制 

分 类 号：TM712[电气工程—电力系统及自动化]