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小干扰稳定中特征值对运行参数的灵敏度 被引量:21

Eigenvalue Sensitivity with Respect to Operating Parameters in Small Signal Stability Analysis
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摘要 特征值灵敏度分析已广泛应用于对电力系统中控制元件的选址和控制系统的参数设计,特征值灵敏度已成为电力系统小干扰稳定控制设计时一个不可缺少的重要工具。但是,绝大多数文献都只是分析系统中各个闭环控制及其参数对小干扰稳定性的影响,而一般系统参数(诸如运行参数)的作用却没有引起足够的重视。因此,推导了电力系统小干扰稳定性分析中特征值对运行参数(包括节点注入功率和PV节点电压)的灵敏度,并将其应用于新英格兰10机系统来评价系统参数在电力系统小干扰稳定性中的作用。 Eigenvalue sensitivity analysis has been widely used in power system dynamic studies and the controller designs, becoming an indispensable tool in power system small signal stability analysis. Many publications discussed only the design/tuning of controller, while the effect of general system parameter such as operating parameters appears to be ignored. In this paper, formulas of the eigenvalue sensitivity with respect to system operating parameter ,such as nodal injection power and PV voltage ,is deduced and is applied to an 10-machine system to assess the effects of system operating parameters on power system small signal stability.
出处 《电力系统及其自动化学报》 CSCD 北大核心 2005年第4期31-35,共5页 Proceedings of the CSU-EPSA
关键词 电力系统 小于扰稳定性 特征值灵敏度 power system small signal stability eigenvalue sensitivity
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参考文献8

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