水电站运行参数率定对电网安全稳定运行的影响分析  

Impact analysis of hydropower station operation parameter calibration on power grid safety and stability

作　　者：刘星[1] 张建峰 田波 忽旻 LIU Xing;ZHANG Jianfeng;TIAN Bo;HU Min(Powerchina Northwest Engineering Corporation Limited,Xi'an 710065,China;State Grid Gansu Power Company Liujiaxia Hydropower Plant,Yongjing 731600,China;Gansu Liujiaxia Hydropower Association Co.Ltd,Yongjing 731600,China)

机构地区：[1]中国电建集团西北勘测设计研究院有限公司,西安710065 [2]国网甘肃省电力公司刘家峡水电厂,甘肃永靖731600 [3]甘肃刘家峡水电联业有限公司,甘肃永靖731600

出　　处：《水科学与工程技术》2025年第1期64-67,共4页Water Sciences and Engineering Technology

摘　　要：水电站作为电力系统的重要组成部分,其运行参数的合理设置与调整直接关系到电网的稳定和安全。因此,深入研究水电站参数与电网安全稳定运行之间的关系,对于优化水电站运行、提高电网供电可靠性具有重要意义。以某地区新建水电站为例,对惯性时间常数T_(j)、直轴暂态电抗X_(d)'等机电参数对电网稳定性的影响进行详细的分析计算,并探讨了电站送出线路长度和机端电压对电网的稳定性影响规律,最后得出具有较好远期适应性的参数选择建议。As an important component of the power system,the reasonable setting and adjustment of operating parameters of hydropower stations are directly related to the stability and safety of the power grid.Therefore,conducting in-depth research on the relationship between hydropower station parameters and the safe and stable operation of the power grid is of great significance for optimizing the operation of hydropower stations and improving the reliability of power supply in the grid.This article takes a newly-built hydropower station as an example to conduct a detailed calculation and analysis of the impact of electromechanical parameters such as inertia time constant T_(j) and direct-axis transient reactance X_(d)'on the stability of the power grid.It also briefly discusses the impact of the length of the transmission line from the power station and the generator terminal voltage on the stability of the power grid.Finally,it proposes parameter selection suggestions with better long-term adaptability.

关 键 词：水电站 机电参数 线路长度 机端电压 稳定分析 

分 类 号：TM622[电气工程—电力系统及自动化]