Nonlinear damping effects in a simplified power grid model based on coupled Kuramoto-like oscillators with inertia

2021 ◽  
Vol 152 ◽  
pp. 111343
Author(s):  
P.A. Arinushkin ◽  
T.E. Vadivasova
Author(s):  
Cunbin Li ◽  
Ding Liu ◽  
Yi Wang ◽  
Chunyan Liang

AbstractAdvanced grid technology represented by smart grid and energy internet is the core feature of the next-generation power grid. The next-generation power grid will be a large-scale cyber-physical system (CPS), which will have a higher level of risk management due to its flexibility in sensing and control. This paper explains the methods and results of a study on grid CPS’s behavior after risk. Firstly, a behavior model based on hybrid automata is built to simulate grid CPS’s risk decisions. Then, a GCPS risk transfer model based on cooperative game theory is built. The model allows decisions to ignore complex network structures. On this basis, a modified applicant-proposing algorithm to achieve risk optimum is proposed. The risk management model proposed in this paper can provide references for power generation and transmission decision after risk as well as risk aversion, an empirical study in north China verifies its validity.


2020 ◽  
pp. 1-11
Author(s):  
Guo Yunfeng ◽  
Li Jing

In order to improve the effect of the teaching method evaluation model, based on the grid model, this paper constructs an artificial intelligence model based on the grid model. Moreover, this paper proposes a hexahedral grid structure simplification method based on weighted sorting, which comprehensively sorts the elimination order of candidate base complexes in the grid with three sets of sorting items of width, deformation and price improvement. At the same time, for the elimination order of basic complex strings, this paper also proposes a corresponding priority sorting algorithm. In addition, this paper proposes a smoothing regularization method based on the local parameterization method of the improved SLIM algorithm, which uses the regularized unit as the reference unit in the local mapping in the SLIM algorithm. Furthermore, this paper proposes an adaptive refinement method that maintains the uniformity of the grid and reduces the surface error, which can better slow down the occurrence of geometric constraints caused by insufficient number of elements in the process of grid simplification. Finally, this paper designs experiments to study the performance of the model. The research results show that the model constructed in this paper is effective.


2004 ◽  
Vol 20 (5) ◽  
pp. 543-552 ◽  
Author(s):  
B. Alorda ◽  
V. Canals ◽  
J. Segura

2021 ◽  
Author(s):  
Qinyi Lei ◽  
Qi Sun ◽  
Linyan Zhao ◽  
Dehua Hong ◽  
Cailiang Hu

2020 ◽  
pp. 13-22
Author(s):  
Ze-Qi Lu ◽  
Dong-Hao Gu ◽  
Ye-Wei Zhang ◽  
Hu Ding ◽  
Walter Lacarbonara ◽  
...  

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