Analysis of sensor parameter characteristics and digital control on the electric drive´s performance

Author

Gradev, Stanko ; Brockerhoff, Philip ; Kapser, Konrad ; Nugraha, Dian ; Vuletic, Radovan

Author_Institution

Infineon Technol. AG, Munich, Germany

fYear

2013

fDate

29-30 Oct. 2013

Firstpage

1

Lastpage

6

Abstract

Current and rotor position sensors are used in field-oriented control of electric drives. The sensors have internal measurement errors, limited bandwidth and signal processing delay times, which influence the control of the drive. The paper analyzes the influence of these parameters on the torque. The sensor influence is investigated for base speed (BS) and field weakening (FW) operation of the drive. An analytical analysis explains the sensor influence on the generated torque in detail and provides an empiric formula for the relationship of a measurement error and generated torque. The conclusions are confirmed by system simulation of the electric drive train in Simulink and measurement results from a test bench.

Keywords

delays; digital control; electric sensing devices; machine vector control; motor drives; permanent magnet motors; signal processing; BS; FW; IPM motor; Simulink; analytical analysis; base speed operation; current sensor; digital control; electric drive performance; field weakening operation; field-oriented control; interior permanent magnet motor; internal measurement errors; rotor position sensors; sensor parameter characteristic analysis; signal processing delay times; Current measurement; Delays; Equations; Measurement uncertainty; Rotors; Torque; Vectors; current and angle sensors; electric drives; field weakening; field-oriented control;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Drives Production Conference (EDPC), 2013 3rd International

Conference_Location

Nuremberg

Print_ISBN

978-1-4799-1102-8

Type

conf

DOI

10.1109/EDPC.2013.6689738

Filename

6689738