Design and Implementation of a High-Performance PMLSM Drives

Using DSP Chip

Student : Le Thi Van Anh

Advisor : Ying-Shieh Kung

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 55, NO. 3Ying-Shieh Kung, Member, IEEE

Outline

IntroductionSystem description and

controller designExperiments and resultsConclusion

Introduction

• Permanent magnet linear synchronous motor

System description and controller design

A. Current Vector Control

The mathematical model of a PMLSM

The developed electromagnetic thrust force

Considering the mechanical load, the dynamic position movement equation of PMLSM

A. Current Vector Control

B. Adaptive Fuzzy Controller in Position Control Loop

Initial fuzzy control rules

NB,NM,ZO,PS,PM,PB are the symmetrical triangular membership function.

B. Adaptive Fuzzy Controller in Position Control Loop

The Initial fuzzy control rules

Using the singleton fuzzifier, the product-inference rule

and the central average defuzzifier method:

B. Adaptive Fuzzy Controller in Position Control Loop

The gradient descent method is used to derive the adaptive control law.

C. Point to Point Motion control

Point to point motion control scheme

Experiments and results

The experimental system a TMS320F2812 DSP controllera voltage source (IGBT) inverterA PMLSM manufactured by the BALDOR electric

companyA linear encoder with a resolution of 5 μm mounted on

the PMLSM as the position sensor.

Experiments and results

The simulation using Matlab

Experiments and results

Flow chart of the main an ISR program in the DSP chip

Experiments and results

Position and winding current response of step position command using a fuzzy controller

0 Kg

6 kg

Experiments and results

6 kg load and using a fuzzy controller6 kg load and using the proposed adaptive fuzzy controller

Experiments and results

11 kg load and using fuzzy controller only 11 kg load and using the proposed adaptive fuzzy controller

Experiments and results

Five-hundred-millimeter long-distance motion trajectory experiment under a velocity of 1 m/s, acceleration/deceleration of 20 m/s2 and without load

Experiments and results• Five-hundred-millimeter long-distance motion trajectory experiment under a velocity

of 1 m/s, acceleration/deceleration of 20 m/s2 and load with11 kg

Conclusion

The simulation results show the effectiveness

of adaptive ability of the proposed control algorithm.

The experimental results also demonstrate that in the step command response, and the point-to-point motion trajectory, the position of the PMLSM can fast track the prescribed dynamic response accurately after the proposed controller has been used.

Thank you for listening