Abstract
This paper presents a new configuration for integrated on-board battery chargers of electric vehicles (EVs) incorporating symmetrical six-phase machines. The configuration proposes an exclusive utilization of a nine-switch converter (NSC) along with the machine windings during both propulsion and charging of EVs. The proposed configuration has the advantage of employing a reduced number of components in both the EV (on-board) and charging station (off-board), with the privilege of avoiding machine electromagnetic torque production during charging/vehicle-to-grid (V2G) mode of operation. During charging/V2G mode, the NSC is turned into a conventional three-phase pulse width modulation rectifier and is directly connected to the three-phase mains through the machine windings. Conventional three-phase transformers can be employed for galvanic isolation. Switching between propulsion and charging modes is carried out using a simple hardware reconfiguration. Control schemes for both propulsion and charging/V2G modes are elaborated, along with the principles of operation of the NSC. Experimental results are provided to validate the theoretical deductions for the different operating modes.
| Original language | English (US) |
|---|---|
| Article number | 7454736 |
| Pages (from-to) | 5326-5335 |
| Number of pages | 10 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 63 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 1982-2012 IEEE.
Keywords
- Grid-connected vehicles
- integrated on-board chargers
- nine-switch converter (NSC)
- symmetrical six-phase machines
ASJC Scopus subject areas
- Control and Systems Engineering
- Electrical and Electronic Engineering