Torque Ripple Reduction Using Variable DC-link Voltage Technique for Permanent Magnet Synchronous Motor in Battery Electric Vehicle

被引：0

作者：

Liu, Libo ^{[1
]}

Goetting, Gunther ^{[2
]}

Xie, Jian ^{[1
]}

机构：

[1] Ulm Univ, Inst Energy Convers & Storage, Ulm, Germany

[2] Robert Bosch GmbH, Powertrain Solut, Control, Stuttgart, Germany

来源：

2020 IEEE 29TH INTERNATIONAL SYMPOSIUM ON INDUSTRIAL ELECTRONICS (ISIE) | 2020年

关键词：

torque ripple; variable dc-link voltage; cascaded multilevel inverter; PMSM; nonsinusoidal back-EMF;

D O I：

10.1109/isie45063.2020.9152412

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new torque ripple reduction strategy is presented for permanent magnet synchronous motors in electric vehicle applications. Within the control scheme, the dc-link voltage of the traction inverter is modified to produce a counteracting power against the torque pulsation. A cascaded multilevel inverter is built to generate the variable dc-link voltage. The suggested technique can reduce the torque ripple resulting from the interaction of the current MMF with the nonsinusoidal back-EMF. Simulation results confirm that adding suitable 6th-order voltage to the dc-link reduces the 6th-order component of the torque ripple. In the experiments, the stator current is observed. The injected 6th-order voltage effectively eliminates the 5th- and 7th-order current harmonics.

引用

页码：374 / 379

页数：6

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