An Electric Vehicle Interior Permanent-Magnet Synchronous Motor Drive with Interleaving Bidirectional Interface DC/DC Converter and Grid-to-Vehicle/Vehicle-to-Grid Functions

Autor: Lin, Yu-Shian, 林育賢
Rok vydání: 2013
Druh dokumentu: 學位論文 ; thesis
Popis: 101
This thesis develops a digital signal processor (DSP) based interior permanent-magnet synchronous motor (IPMSM) drive for electric vehicles (EVs) with grid-to-vehicle (G2V) charging and vehicle-to-home (V2H)/vehicle-to-grid (V2G) discharging operation capabilities. The established EV IPMSM drive consists of a two-leg interleaving bidirectional front-end DC/DC converter and a three-phase inverter. The front-end converter can establish an adjustable and boostable DC-link voltage for the motor drive to enhance its high speed driving performance. It can also allow the battery bank be charged from the mains or the motor during regenerative braking. Through proper control, the established standard EV IPMSM drive preserves satisfactory driving performances, including starting, acceleration, deceleration and regenerative braking characteristics. In addition, the DC-link voltage boosting, the commutation instant tuning and the field weakening approaches are further applied to enhance its performance under higher speeds. In addition, the feasibility and performance assessment of IPMSM sensorless control in EV propulsion are also explored. In the developed hybrid sensorless control scheme, the motor is started under high-frequency signal injection (HFI) sensorless control. As the motor speed rises to a preset value, the sensorless operation is changed to the observed extended back electromotive force (EEMF) based approach. The comparative experimental performance evaluations of the IPMSM drive under standard and sensorless controls are conducted. In idle condition, the developed PMSM drive can be properly arranged to perform G2V and V2H/V2G operations. For G2V operation, an on-board single-phase H-bridge boost SMR based charger is formed. It allows the battery be charged from mains with good line drawn power quality. In addition, the performance of an integrated SMR using the motor windings as energy storage inductors is evaluated experimentally. As to the V2H/V2G operations, a single-phase three-wire (1P3W) inverter is constructed. By applying the differential mode (DM) and common mode (CM) control approaches, it can yield good inverter output waveforms under autonomous V2H and grid-connected V2G discharging modes.
Databáze: Networked Digital Library of Theses & Dissertations
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