同步发电机低负荷进相工况电力系统稳定器抑制效果研究  

Research on Damping Effects of Power System Stabilizer under Low-load Leading Phase Condition of Synchronous Generator

作　　者：黄康 唐潇潇 HUANG Kang;TANG Xiaoxiao(State Grid Sichuan Integrated Energy Service Co.,Ltd.,Chengdu 610041,China)

机构地区：[1]国网四川综合能源服务有限公司,成都610041

出　　处：《大电机技术》2024年第4期127-132,共6页Large Electric Machine and Hydraulic Turbine

摘　　要：电力系统稳定器参数整定过程未计及发电机低负荷进相工况,参数对该工况下的低频振荡阻尼效果尚不清楚。为此,本文首先阐述了低频振荡产生机理及电力系统稳定器原理。其次,分析了机组进相运行时功角与系统阻尼的变化。然后,研究了机组有功功率、无功功率及低负荷进相工况对励磁系统无补偿相频特性的影响。最后,通过仿真对比,分析了不同工况下电力系统稳定器对低频振荡的抑制效果。The available parameter setting method of power system stabilizer does not take into account the low-load leading phase condition of the generator,so the damping effect on the low-frequency oscillation under the condition is not clear.Firstly,the generation mechanism of low-frequency oscillation and the principle of power system stabilizer are described.Secondly,the changes of power angle and system damping under leading phase operation are analyzed.Then,the influence of the active power,reactive power and low-load leading phase operation on the uncompensated phase frequency characteristics of the excitation system is studied.Finally,through simulation comparison,the damping effect of power system stabilizer on low-frequency oscillation under different conditions are analyzed.

关 键 词：低频振荡 电力系统稳定器 进相运行 无补偿相频特性 励磁系统 

分 类 号：TM7122[电气工程—电力系统及自动化]