Supermodal Decomposition of the Linear Swing Equation for Multilayer Networks.
Supermodal Decomposition of the Linear Swing Equation for Multilayer Networks.
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DOI:
10.1109/access.2022.3188392
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发表时间:
2022
期刊:
影响因子:
3.9
通讯作者:
Sorrentino, Francesco
中科院分区:
文献类型:
--
作者:
Bhatta, Kshitij;Nazerian, Amirhossein;Sorrentino, Francesco
关键词:
We study the swing equation in the case of a multilayer network in which generators and motors are modeled differently; namely, the model for each generator is given by second order dynamics and the model for each motor is given by first order dynamics. We also remove the commonly used assumption of equal damping coefficients in the second order dynamics. Under these general conditions, we are able to obtain a decomposition of the linear swing equation into independent modes describing the propagation of small perturbations. In the process, we identify symmetries affecting the structure and dynamics of the multilayer network and derive an essential model based on a ‘quotient network.’ We then compare the dynamics of the full network and that of the quotient network and obtain a modal decomposition of the error dynamics. We also provide a method to quantify the steady-state error and the maximum overshoot error. Two case studies are presented to illustrate application of our method.
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