A small-signal stability analysis method under interval uncertainty

作者：Xing, Jie^*; Chen, Chen; Wang, Jie

来源：Automation of Electric Power Systems, 2010, 34(6): 12-16.

• Damping ratio
• Interval uncertainty
• Low frequency oscillations
• Nonlinear optimization model
• Small signal stability
• Small signal stability analysis
• Successive linear programming
• Successive linear programming methods

The problem of small-signal stability in power system considering uncertainty of load and generation is investigated. Firstly, this paper builds a nonlinear optimization model for solving the upper and lower limits of oscillation mode's damping ratio under interval uncertainty. Then, an effective successive linear programming (SLP) method is proposed to solve this problem. By using this method, the interval damping ratio and the corresponding operation states at its interval limits can be obtained. Calculation results can be used to evaluate the influence of load and generation variations on a certain mode and give useful information for improvement. Finally, the proposed method is validated on two test systems.

• 出版日期2010
• 单位上海交通大学