RT Journal Article
T1 Active Control of Variable DC-Link for Maximum Efficiency of Traction Motor Drives
A1 Pescetto, Paolo
A1 Sierra-Gonzalez, Andres
A1 Alvarez-Gonzalez, Fernando
A1 Kapeller, Hansjorg
A1 Trancho, Elena
A1 Pellegrino, Gianmario
AB Modern electric vehicles often interpose a DC/DC converter between traction battery and inverter, boosting the supply voltage of the drive. The power losses in the two converters and in the electric motor significantly vary with the DC-link voltage amplitude. In this work, a novel control algorithm is proposed to adapt online the DC-link voltage during vehicle operation, pursuing the maximum efficiency of the DC/DC converter and traction inverter without affecting the motor control dynamic. The key principle of the proposal, suitable for 3-phase and multi-three-phase drives, relies on the DC-link voltage minimization on varying the drive operating conditions. Among its advantages, the proposed variable DC-link control is independent of the motor parameters, the adopted torque/speed control strategy and the number of 3-phase sets of the drive. Although originally developed for electric vehicles, it can be adopted in a wide number of applications. Straightforward calibration roles are also provided. The proposed algorithm is deeply validated in simulation and experiments using a full-scale 135 kW 6-phase traction motor drive at TRL6.
SN 0093-9994
YR 2023
FD 2023-07-01
LK https://hdl.handle.net/11556/3027
UL https://hdl.handle.net/11556/3027
LA eng
NO Pescetto , P , Sierra-Gonzalez , A , Alvarez-Gonzalez , F , Kapeller , H , Trancho , E & Pellegrino , G 2023 , ' Active Control of Variable DC-Link for Maximum Efficiency of Traction Motor Drives ' , IEEE Transactions on Industry Applications , vol. 59 , no. 4 , pp. 4120-4129 . https://doi.org/10.1109/TIA.2023.3267770
NO Publisher Copyright: © 1972-2012 IEEE.
NO This work was supported in part by the European Commission performed within the EU H2020 Project FITGEN under GrantAgreement 824335, and in part by the PowerElectronics InnovationCenter (PEIC) of Politecnico di Torino.
DS TECNALIA Publications
RD 5 ago 2024