This work proposes an optimized control strategy for online adapting the DC-link voltage in a traction motor drive. In the considered vehicle architecture, a DC/DC converter boosts the battery voltage (rated 400 V) to a controlled DC-link, which feeds the traction inverter. The amplitude of the DC-link is online varied depending on the drive speed and torque conditions to minimize the power losses in the DC/DC converter and in the traction inverter. The switching losses in both the converters are reduced by minimizing the DC-link voltage without affecting the motor control performance. The proposed DC-link adaptation technique is almost independent of the motor parameters and adopted torque/speed control strategy, therefore it can be adopted in a wide number of applications. Moreover, it requires minimal calibration effort.
Variable DC-link Control Strategy for Maximum Efficiency of Traction Motor Drives / Pescetto, Paolo; Sierra-Gonzalez, Andres; Trancho, Elena; Pellegrino, Gianmario. - ELETTRONICO. - (2021), pp. 4815-4821. ((Intervento presentato al convegno 2021 IEEE Energy Conversion Congress and Exposition (ECCE) tenutosi a Vancouver, BC, Canada nel 10-14 Oct. 2021 [10.1109/ECCE47101.2021.9595681].
Titolo: | Variable DC-link Control Strategy for Maximum Efficiency of Traction Motor Drives | |
Autori: | ||
Data di pubblicazione: | 2021 | |
Abstract: | This work proposes an optimized control strategy for online adapting the DC-link voltage in a tra...ction motor drive. In the considered vehicle architecture, a DC/DC converter boosts the battery voltage (rated 400 V) to a controlled DC-link, which feeds the traction inverter. The amplitude of the DC-link is online varied depending on the drive speed and torque conditions to minimize the power losses in the DC/DC converter and in the traction inverter. The switching losses in both the converters are reduced by minimizing the DC-link voltage without affecting the motor control performance. The proposed DC-link adaptation technique is almost independent of the motor parameters and adopted torque/speed control strategy, therefore it can be adopted in a wide number of applications. Moreover, it requires minimal calibration effort. | |
ISBN: | 978-1-7281-5135-9 | |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
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http://hdl.handle.net/11583/2948321