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Phase and Neutral Current Ripple Analysis in Three-Phase Four-Wire Split-Capacitor Grid Converter for EV Chargers
- Source :
- Electronics, Vol 10, Iss 1016, p 1016 (2021), Electronics, Volume 10, Issue 9
- Publication Year :
- 2021
- Publisher :
- MDPI AG, 2021.
-
Abstract
- The current switching ripple in a three-phase four-wire split-capacitor converter is analyzed in this paper for all the four ac output wires in relation to both balanced and unbalanced working conditions. Specifically, analytical formulations of the peak-to-peak and root mean square (RMS) current ripples are originally evaluated as a function of the modulation index, separately for the three phases and the neutral wire. Initially, the single-carrier sinusoidal pulse width modulation (PWM) technique is outlined, as it generally concerns a straightforward and effective modulation. With the aim of mitigating the current ripple in the neutral wire, the interleaved multiple-carrier PWM strategy is adopted, also avoiding any repercussion on the phase one. Numerical simulations and experimental tests were carried out to verify all the analytical developments.
- Subjects :
- split-capacitor
Materials science
TK7800-8360
Computer Networks and Communications
020209 energy
Ripple
Phase (waves)
Modulation index
Vehicle-to-grid
Ground and neutral
02 engineering and technology
Topology
law.invention
Root mean square
three-phase
law
0202 electrical engineering, electronic engineering, information engineering
PWM
Electrical and Electronic Engineering
current ripple
020208 electrical & electronic engineering
Grid-connected
four-wire
Capacitor
Three-phase
Hardware and Architecture
Control and Systems Engineering
Signal Processing
interleaved
Electronics
Pulse-width modulation
Subjects
Details
- ISSN :
- 20799292
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Electronics
- Accession number :
- edsair.doi.dedup.....5dfa71850bbf80a169fb82e6c3a6a1b7