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电力系统暂态稳定切机控制策略表的快速整定方法
引用本文:王怀远,张保会,杨松浩,苏福.电力系统暂态稳定切机控制策略表的快速整定方法[J].电力系统自动化,2016,40(11):68-72.
作者姓名:王怀远  张保会  杨松浩  苏福
作者单位:电力设备电气绝缘国家重点实验室(西安交通大学), 陕西省西安市 710049,电力设备电气绝缘国家重点实验室(西安交通大学), 陕西省西安市 710049,电力设备电气绝缘国家重点实验室(西安交通大学), 陕西省西安市 710049,电力设备电气绝缘国家重点实验室(西安交通大学), 陕西省西安市 710049
摘    要:提出了一种基于轨迹凹凸性理论的暂态稳定切机控制策略表整定方法,该方法能够有效提高策略表整定过程的效率,避免了大量的重复性仿真工作。针对会给系统带来重大冲击的预想故障,基于时域仿真结果,可以得到系统的暂态功角稳定性;当系统发生暂态失稳时,根据不稳定事故的仿真信息,得到控制时刻和不稳定平衡点处的功角以及控制时刻的角速度,可以计算出较准确的控制量。实际电网系统的仿真结果验证了所提整定方法的快速性。

关 键 词:紧急控制  策略表  暂态稳定  相轨迹  切机
收稿时间:2015/9/21 0:00:00
修稿时间:2016/3/29 0:00:00

Fast Setting Method of Generator Tripping Strategy Tables in Transient Stability Control of Power Systems
WANG Huaiyuan,ZHANG Baohui,YANG Songhao and SU Fu.Fast Setting Method of Generator Tripping Strategy Tables in Transient Stability Control of Power Systems[J].Automation of Electric Power Systems,2016,40(11):68-72.
Authors:WANG Huaiyuan  ZHANG Baohui  YANG Songhao and SU Fu
Affiliation:State Key Laboratory of Electrical Insulation and Power Equipment(Xi''an Jiaotong University), Xi''an 710049, China,State Key Laboratory of Electrical Insulation and Power Equipment(Xi''an Jiaotong University), Xi''an 710049, China,State Key Laboratory of Electrical Insulation and Power Equipment(Xi''an Jiaotong University), Xi''an 710049, China and State Key Laboratory of Electrical Insulation and Power Equipment(Xi''an Jiaotong University), Xi''an 710049, China
Abstract:A fast setting method of generator tripping strategies in transient stability control based on the concavity and convexity of phase trajectory is proposed. This method can improve the efficiency of strategy table setting without numerous repeated simulations. During anticipated serious faults with significant impact on the system, the stability of the system''s transient power angle can be detected based on the time-domain simulation. When the system is transiently unstable, an accurate control strategy can be calculated by the information on the simulation result including power angles and rotor speeds at the control moment and the unstable equilibrium point(UEP). The simulation result of an actual system shows the rapidity of the method.
Keywords:emergency control  strategy table  transient stability  phase trajectory  generator tripping
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