Online impedance spectroscopy estimation of a dc–dc converter connected battery using a switched capacitor‐based balancing circuit. Issue 7 (10th July 2019)

• Record Type: Journal Article
• Authors: Varnosfaderani, Mina Abedi; Strickland, Dani
• Is Part Of: Journal of engineering. Volume 2019:Issue 7(2019)
• Page Start: 4681
• Page End: 4685
• Publication Date: 2019-07-10
• Subjects: secondary cells -- battery management systems -- DC‐DC power convertors -- electrochemical impedance spectroscopy -- battery powered vehicles -- switched capacitor networks -- capacitors; frequency range -- battery balancing circuit -- switched capacitor balancing system -- low‐frequency -- battery voltage -- current -- online impedance spectroscopy estimation -- dc–dc converter connected battery -- switched capacitor‐based -- online electrochemical impedance spectroscopy measurements -- battery impedance; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.8069
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : This study investigates a novel method of undertaking online electrochemical impedance spectroscopy measurements to estimate battery impedance across the frequency range using a battery balancing circuit. A switched capacitor balancing system is used to generate an excitation signal of low‐frequency of variable values from which battery voltage and current can be measured to estimate the impedance.