PMSM | PartQuest™ Explore

Application Area

Motors & Drives

EPS System with MotorSolve Generated PMSM Model and DQ/SVM Drive

Mike Donnelly
Designer19

Mike Donnelly

Member for

11 years

1,694

designs

10

groups

Member of the PartQuest Explore Development Team. Focused on modeling and simulation of analog, mixed-signal and multi-discipline systems covering a broad range of applications, including power electronics, controls and mechatronic systems.

Description

This Electric Power Steering (EPS) System design includes a MotorSolve generated Permanent Magnet Synchronous Machine (PMSM) model and a PWM Drive circuit. The drive includes a D-Q control algorithm, and uses space-vector modulation (SVM) to generate the digital PWM signals to the switches of the bridge.

The mechanical load model includes static and kinetic friction, a steering force that varies with rack displacement, as well as various mass, inertia, damping and spring/stiffness elements of the steering system. The steering torque, applied by the vehicle's driver, is assisted by torque from the motor scaled by the gear ratio. For the control, a non-linear gain profile is specified in the "torque_assist_table" function, and a lead-lag compensator is used to improve system stability.

In a companion version of this design, "EPS System with MotorSolve Generated PMSM Model and Ideal Drive", Clarke and Park Transform models are used with a continuous ideal voltage drive. This shows the ability to develop motor controls and drives at the abstract level and also at the circuit level.

About text formats

PMSM Motor and PWM Drive2

Jonokuchi
Designer192506

Jonokuchi

Member for

6 years 8 months

57

designs

3

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

Permanent Magnet Synchronous Machine (PMSM) and PWM Drive circuit, with mechanical load. The drive includes a D-Q control algorithm, and uses space-vector modulation (SVM) to generate the digital PWM signals to the switches of the bridge.The waveform plot in the upper left shows the drive command (light blue waveform), with values 0 to 1, where 1 is commanding the maximum quadrature current of 10 A. The motor's response is the output shaft angle in radians (orange waveform), and shows that increasing torque command results in greater rotational displacement against the load spring. The waveform plot in the upper right shows the actual motor torque (green waveform) and the A-phase current (dark blue waveform).In a companion version of this design, "PMSM Motor And Ideal Drive", Clarke and Park Transform models are used with a continuous ideal voltage drive.This shows the ability to develop motor control and drives at the abstract level and at the circuit level.In yet another version of this design example, the ideal switches will be replaced with actual power MOSFET device models. This can help in bridge component sizing and performance specification.

About text formats

Example_550

ebookaktiv
Designer152721

ebookaktiv

Member for

7 years 1 month

109

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Example_385

ebookaktiv
Designer152721

ebookaktiv

Member for

7 years 1 month

109

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

PMSM Motor and Ideal Drive

mittiplak
Designer184526

mittiplak

Member for

6 years 9 months

2

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

About text formats

PMSM Motor,PWM Drive and analog inverter_j

HidekiJonokuchi
Designer170986

HidekiJonokuchi

Member for

6 years 10 months

14

designs

1

groups

Add a bio to your profile to share information about yourself with other SystemVision users.

Description

Permanent Magnet Synchronous Machine (PMSM) and PWM Drive circuit, with mechanical load. The drive includes a D-Q control algorithm, and uses space-vector modulation (SVM) to generate the digital PWM signals to the switches of the bridge.The waveform plot in the upper left shows the drive command (light blue waveform), with values 0 to 1, where 1 is commanding the maximum quadrature current of 10 A. The motor's response is the output shaft angle in radians (orange waveform), and shows that increasing torque command results in greater rotational displacement against the load spring. The waveform plot in the upper right shows the actual motor torque (green waveform) and the A-phase current (dark blue waveform).In a companion version of this design, "PMSM Motor And Ideal Drive", Clarke and Park Transform models are used with a continuous ideal voltage drive.This shows the ability to develop motor control and drives at the abstract level and at the circuit level.In yet another version of this design example, the ideal switches will be replaced with actual power MOSFET device models. This can help in bridge component sizing and performance specification.

About text formats