应用暂态稳定测度指标的参数灵敏度分析方法

摘要

The trajectory sensitivity method is widely applied to the field of power systems,and component parameter is an important factor that affects the transient stability of power system. The determination of the impact of component pa⁃rameters on transient stability provides reference for power grid operation. The parameters of generator and excitation sys⁃tem are analyzed as examples in an actual power system based on the proposed transient stability measurement index, and the consistency between the results of the proposed index analysis and trajectory sensitivity analysis is tested. It is shown that the results of sensitivity analysis based on the measurement index in this paper can reflect the impact of pa⁃rameters on transient stability,so it is also applicable to other component parameters. The transient stability measure⁃ment index proposed in this paper can provide a new idea for testing the impact of parameters on transient stability.%轨迹灵敏度方法在电力系统领域中有着广泛的应用，元件参数是影响电力系统暂态稳定性的重要因素。通过轨迹灵敏度分析，明确各元件参数对暂态稳定性的影响程度，从而为电网运行提供指导性的参考依据。根据提出的暂态稳定测度指标在实际电网中以发电机和励磁系统的参数为例，检验了暂态稳定测度指标分析结果与轨迹灵敏度分析结果的一致性，表明基于本文测度指标的灵敏度分析结果能反映参数对暂态稳定性的影响程度，因而对于其他元件参数的灵敏度分析也同样适用。文中提出的暂态稳定测度指标可为检验参数对暂态稳定性的影响程度提供新的思路。