基于特征根分析法的水电厂 PSS 参数配置

摘要

In the parameter configuration of power system stabilizer ( PSS) in hydropower stations, the state space-eigen-value analysis method is adopted to determine the oscillation modes of the system and acquire the electro-mechanical os-cillation patterns.An eigenvalue sensitivity analysis is also carried out.Based on the practical operation of generator u-nits in Cambodian Tatay Hydropower Station, the performances of PSS in the suppressing of the low frequency oscillation with the default parameters and the practical operational parameters are compared.%采用状态空间－特征根分析法研究系统的振荡模态，提取机电振荡模式，通过特征根灵敏度分析，为PSS参数整定提供依据。并以柬埔寨达岱水电厂机组实际运行工况为基本条件，通过算例比较了PSS出厂参考参数与实际运行工况下设置的参数在发挥抑制低频振荡作用方面的性能。