Minimising current ripple in electric vehicle batteries by proper pulse width modulation techniques
Küçük Resim Yok
Tarih
2017
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Inderscience Enterprises Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Batteries are one of the key components of electric vehicles (EVs). Batteries supply energy to output in normal working mode by converting internal chemical energy to electric energy (discharging), and they restore energy in regenerative working mode as opposed to discharging (charging). During each mode, battery current contains ripple which influences battery lifetime negatively. Simulations which include ideal models for battery and DC bus capacitors do not give realistic results in terms of battery ripple current. This paper presents comparative investigations and evaluations with regard to battery current waveform, battery current harmonic spectrum and the ratio of battery current harmonic components to battery average current. Various modulation methods and operating conditions (i. e., a different modulation index and load power factor for an open loop scheme, and a different speed and torque for a closed loop scheme) are considered with high-frequency models of battery and DC bus capacitors.
Açıklama
Anahtar Kelimeler
EVs, electric vehicles, electric vehicle batteries, DC bus capacitors, power electronics
Kaynak
International Journal of Vehicle Design
WoS Q Değeri
Q4
Scopus Q Değeri
Q4
Cilt
73
Sayı
4
