Open AccessFixed topology Thévenin equivalent fully detailed model for nonlinear capacitances
Author(s) -
Zhang Feng,
Wang Kangping,
Yang Xu,
Cheng Shi
Publication year - 2017
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2016.3662
Subject(s) - datasheet , nonlinear system , capacitance , topology (electrical circuits) , admittance parameters , thévenin's theorem , voltage , admittance , equivalent circuit , computer science , electronic engineering , electrical engineering , physics , engineering , electrical impedance , electrode , quantum mechanics
A datasheet‐based fully detailed model for nonlinear capacitances is proposed to significantly reduce the simulation time on the turn‐on and turn‐off transitions of power electronic circuits. In this model, a nonlinear capacitance is Thévenin equivalent to a voltage source in series with a constant resistance, and the nonlinear part is represented in the voltage source. So, unchangeable admittance matrix is achieved regarding the nonlinear part of capacitances as excitations. Appreciable calculation speedup is gained while good accuracy is maintained.