Robustness Against Disturbances in Power Systems Under Frequency Constraints
Robustness Against Disturbances in Power Systems Under Frequency Constraints
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DOI：
10.1109/tcns.2019.2900843
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发表时间：
2018-03
影响因子：
4.2
通讯作者：
Dongchan Lee;Liviu Aolaritei;T. Vu;K. Turitsyn
中科院分区：
文献类型：
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作者：
Dongchan Lee;Liviu Aolaritei;T. Vu;K. Turitsyn
可再生能源发电的广泛部署和整个系统惯性的逐渐降低使现代电网更容易受到瞬态不稳定性和不可接受的频率波动的影响。基于时域仿真的系统对不确定和随机干扰的鲁棒性评估是非常耗时的。在本文中，我们开发了另一种方法，它有其根源的输入输出稳定性分析Lur 'e系统。我们的方法包括一个数学上严格的外部干扰的电力系统是暂态稳定的，频率约束不违反的特征。导出的证书是有效地构造通过凸优化，并被证明是非保守的不同的IEEE测试用例。
The wide deployment of renewable generation and the gradual decrease in the overall system inertia make modern power grids more vulnerable to transient instabilities and unacceptable frequency fluctuations. Time-domain simulation-based assessment of the system robustness against uncertain and stochastic disturbances is extremely time-consuming. In this paper, we develop an alternative approach, which has its roots in the input–output stability analysis for Lur’e systems. Our approach consists of a mathematically rigorous characterization of the external disturbances that the power system is transiently stable and the frequency constraints are not violated. The derived certificate is efficiently constructed via convex optimization and is shown to be nonconservative for different IEEE test cases.