红水河2025，Vol.44Issue(1)：1-7,7.DOI:10.3969/j.issn.1001-408X.2025.01.001
龙滩电厂有效整定PSS抑制电压波动的研究与实践
Optimal Tuning of PSS to Suppress Voltage Fluctuations in Longtan Power Plant
韦怡 1陈刚 2赵勇 2韦东梁 1江出阳2
作者信息
- 1. 龙滩水电开发有限公司龙滩水力发电厂,广西 天峨 547300
- 2. 南方电网科学研究院有限责任公司,广东 广州 510663
- 折叠
摘要
Abstract
Through the analysis of excitation waveform recordings and synchronous phasor measurement unit(PMU)data at Longtan Power Plant,this study identifies the root causes of significant voltage fluctuations at the facility.To address the limitations of conventional power system stabilizer(PSS)parameter tuning methods,we propose an optimized PSS parameter tuning approach incorporating small DC-blocking time constants that effectively suppresses system voltage fluctuations.Utilizing multiple validation methodologies including large-grid time-domain simulations,hardware-in-the-loop(HIL)closed-loop simulations with actual excitation regulators,and field tests on Units 3 and 4 of Longtan Power Plant,a comprehensive comparative evaluation was conducted between conventional PSS parameters and the proposed tuning scheme.The results demonstrate that the optimized PSS parameter configuration not only maintains equivalent damping performance for local and inter-area oscillations compared with original settings,but also achieves remarkable voltage fluctuation suppression during normal generator operation.This innovation significantly enhances both unit-level and grid-wide voltage stability.关键词
电压波动抑制/PSS/参数整定/龙滩电厂Key words
voltage fluctuation suppression/PSS(power system stabilizer)/parameter tuning/Longtan Power Plant分类
动力与电气工程引用本文复制引用
韦怡,陈刚,赵勇,韦东梁,江出阳..龙滩电厂有效整定PSS抑制电压波动的研究与实践[J].红水河,2025,44(1):1-7,7.
