Open AccessTransient pulse‐based impedance characterisation of DC‐link capacitor for EV systems
Author(s) -
Gurpinar Emre,
Ozpineci Burak
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2019.0502
Subject(s) - capacitor , equivalent series resistance , capacitance , transient (computer programming) , inductance , electrical impedance , equivalent series inductance , filter capacitor , electronic engineering , spice , lcr meter , ceramic capacitor , computer science , electrical engineering , engineering , voltage , physics , electrode , quantum mechanics , operating system
In this study, a method for impedance characterisation of DC‐link capacitors based on transient pulse analysis is proposed. The fundamentals of the concept are presented and design considerations are discussed. The functionality of the proposed approach is supported by SPICE simulation with two different commercial capacitors from different manufacturers and validated with experimental results. Experimental results for equivalent series resistance, equivalent series inductance (ESL) and capacitance estimation are presented for commercial DC‐link capacitors and compared with component analyser results. The simulation and experimental results show that the proposed method is a promising candidate for capacitance and ESL estimation of capacitors in EV traction systems.