PMSM Based eDrive Services

Motor Design

A Motor Design
A1 Flux linkage, Ld, Lq, back emf (FE)
A2 kt using FE
A3 Torque and ripple (cogging, rated and peak)
A4 Back emf and terminal voltages
A5 Flux linkages
A6 Iron losses
A7 Demagnetisation
A8 Torque vs gamma
A9 Drag Torque
A10 Torque-speed curve
A11 Steady State Thermal
A12 Transient Thermal
A13 Active short circuit
A14 Battery disconnect
A15 Winding Proximity losses
A16 Forces in the tooth/ Magnet
A17 Maps, Efficiency, Torque, Losses
A18 Inductance matrix
A19 Optimisation using genetic algorithm
A20 Other short circuit simulations
A21 Magnet eddy current losses

 

Methodology: Analytical, FE 2D and FE 3D

Softwares: MotorDesigner, SPEED, Opera, MotorCAD, Ansys Maxwell, Infolytica Plugin for AutoCAD, JMAG, Flux, EMWorks

 

B Control
B1 Vector control, Sine Triangle PWM, ideal
B2 Vector control, SVPWM, ideal
B3 Vector control, current hysteresis control switching(bang bang control)
B4 Direct control of torque and flux (DTC), ideal
B5 Co-simulation with direct FE for vector control with Sine triangle PWM
B6 Co-simulation with direct FE for vector control with SVPWM
B7 Co-simulation with direct FE for vector control with current hysteresis control switching
B8 Co-simulation with direct FE for direct torque (and flux) control
B9 Vector control, Sine triangle PWM, Non-linear flux linkage motor model
B10 Vector control, SVPWM, Non-linear flux linkage motor model
B11 Vector control, current hysteresis switching control, , Non-linear flux linkage motor model
B12 Direct Torque (and flux) Control, Non-linear flux linkage model
B13 Current harmonic injection to minimise the torque ripple using co-simulation with direct FE
B14 Current harmonic injection to minimise the torque ripple using non-linear flux linkage motor model

 

C Full or Partial Real Time Simulations – (HIL, PIL, SIL, etc) and embedded systems programming
C1 Autocode (C++) generation using embedded coder for TMS320 and TMS570 for vector control with Sine triangle PWM
C2 Autocode (C++) generation using embedded coder for TMS320 and TMS570 for vector control with SVPWM
C3 Autocode (C++) generation using embedded coder for TMS320 and TMS570 for vector control with current hysteresis switching
C4 Autocode (C++) generation using embedded coder for TMS320 and TMS570 for direct torque (and flux) control
C5 Autocode generation dspace HIL simulation
C6 Non-linear motor model (flux linkage lookup table) for real time systems
C7 Non-linear motor model (flux linkage lookup table) for real time system
 

D

Power Electronics Simulations – Under development
Multi-physics analysis on bond wires for EM forces, mechanical stress and thermal stress

Loss model and comparison of Si, SiC and GaN devices

E Mechanical Design/ Structural Analysis (FE)
Mechanical stress in rotor at high speed

Modal analysis of stator EM forces

Stress due to electromagnetic forces in the steel (Co-simulation of structural FE and electromagnetic physics)

Acoustics due to electromagnetic forces

F Cooling System/ CFD and Thermal FE
Spiral cooling channel in the stator housing for inner rotor pmsm

Thermal FE and iron losses (co-simulation of thermal FE and electromagnetic physics)