Open AccessModeling and simulation of basic components and transmission line based on Time Scale Frame Transformation
Author(s) -
Yiming Cai,
Shujun Yao
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/631/4/042056
Subject(s) - transient (computer programming) , phasor , harmonics , frame (networking) , transformation (genetics) , computer science , transmission line , electric power transmission , electric power system , power (physics) , process (computing) , electronic engineering , power transmission , transmission (telecommunications) , scale (ratio) , electrical engineering , engineering , telecommunications , voltage , physics , biochemistry , chemistry , quantum mechanics , gene , operating system
With the application of HVDC and flexible AC transmission in the power system, the rapid transient process of power electronic switches makes it impossible for electromechanical transient model based on the ‘quasi-steady state’ assumption unable to accurately reflect its changing process. At the same time, the increasing scale of the power system and the large number of higher harmonics brought by power electronic switches make the simulation results of the traditional electromagnetic transient model, which considers small step size, not fast enough. Based on the analysis and summary of the existing frequency reduction principles, this paper proposes time scale transformation for electromagnetic transient simulation with large step size, and uses it to establish the time scale frame phasor models of basic AC components and transmission lines. Finally, an example is given to show that the method is correct and effective.