Permanent Magnet Synchronous Machines and Drives: Flux Weakening Advanced Control Techniques

✍ Scribed by Wei Xu, Moustafa Magdi Ismail, Md. Rabiul Islam

• Publisher: CRC Press
• Year: 2023
• Tongue: English
• Leaves: 278
• Series: Advances in Power Electronic Converters
• Category: Library

✦ Synopsis

Permanent magnet synchronous motors (PMSMs) are popular in the electric vehicle industry due to their high-power density, large torque-to-inertia ratio, and high reliability. This book presents an improved field-oriented control (FOC) strategy for PMSMs that utilizes optimal proportional-integral (PI) parameters to achieve robust stability, faster dynamic response, and higher efficiency in the flux-weakening region. The book covers the combined design of a PI current regulator and varying switching frequency pulse-width modulation (PWM), along with an improved linear model predictive control (MPC) strategy. Researchers and graduate students in electrical engineering, systems and control, and electric vehicles will find this book useful.

Features

• Implements evolutionary optimization algorithms to improve PMSM performance.

• Provides coverage of PMSM control design in the flux-weakening region.

• Proposes a modern method of model predictive control to improve the dynamic performance of interior PMSM.

• Studies the dynamic performance of two kinds of PMSMs: surface-mounted and interior permanent magnet types.

• Includes several case studies and illustrative examples with MATLAB®.

This book is aimed at researchers, graduate students, and libraries in electrical engineering with specialization in systems and control and electric vehicles.

✦ Table of Contents

Cover
Half Title
Series
Title
Copyright
Contents
Foreword Frede Blaabjerg
Preface
About the Authors
List of Symbols
List of Acronyms
Chapter 1 Introduction
1.1 Research Background and Significance of the PMSMs in Industrial Applications and Main Construction.
1.1.1 History of the First Permanent Magnet Motors
1.1.2 History of Electromagnetic Motors
1.1.3 The Return of Permanent Magnet Motors
1.1.4 Main Construction of PMSM
1.1.5 PMSM Drive Applications Compared to the Drives of the Induction Motor and Brushless DC Motor.
1.2 Literature Review for the PMSM Control Schemes
1.2.1 Variable Frequency Control of PMSM
1.2.2 Current Controller Designing for Performance Improvement of a PMSM Drive.
1.2.3 Model Predictive Controller Design for PMSM Performance Enhancement
1.3 Contribution of the Book
1.4 Organization of the Book
1.5 Summary
Bibliography
Chapter 2 Performance Analysis of PMSM Drive System Using Frequency Modulation Technique
2.1 Introduction: Background of Dynamic Model and Chapter Motivation
2.1.1 Mathematical Model of a Non-Salient PMSM
2.1.2 Mathematic al Model of a Salient PMSM
2.1.3 Motivation
2.2 Maximum Torque per Ampere Principle of PMSM Drive
2.2.1 MTPA Control in the Constant Torque Range
2.2.2 PMSM Control and Operating Limits within the Flux-Weakening Range
2.3 Frequency Modulation Technique for Torque Ripple Reduction
2.4 Variable Switching Frequency Implementation for Surface-Mounted PMSM Drive
2.4.1 Flux-Weakening Control Loop Based on Voltage Vector Feedback
2.4.2 Simulation Results and Discussion
2.4.3 Experimental Results and Discussion
2.5 Summary
Bibliography
Chapter 3 Adaptive Flux-Weakening Control Strategy for Non-Salient Permanent Magnet Synchronous Motor Drives.
3.1 Introduction
3.2 Improved Adaptive Flux-Weakening Control Strategy
3.2.1 Adaptive Control Strategy Design
3.2.2 Cost Function for Adjusting the PI Parameters
3.2.3 Cost Function Evaluation Based on Adaptive Velocity Particle Swarm Optimization Algorithm
3.2.4 Improved Adaptive Flux-Weakening Control Strategy Based on Maximum Line Modulation
3.3 Simulation Cases Analysis
3.3.1 Stability Identification of the Control Scheme
3.3.2 Dynamic Performance Analysis in the Presence of Torque Disorder
3.3.3 Dynamic Performance Analysis in the Presence of the PMSM Parameters Variation
3.4 Experimental Cases Analysis
3.4.1 Validating the Dynamic Performance of the Anti-Windup Technique
3.4.2 Validating the Dynamic Performance of the Advanced Control Strategy in Four Control Case Quadrants
3.4.3 Validating the Dynamic Performance of the Advanced Control Strategy in Torque Disturbance Control Case
3.5 Summary
Bibliography
Chapter 4 Design and Optimization of Stator Current Regulators for Surface-Mounted Permanent Magnet Synchronous Motor Drives....
4.1 Introduction
4.2 Combined Strategy Design for Torque Ripple Reduction of Surface-Mounted PMSM Drive in Flux-Weakening Operation
4.2.1 Flux-Weakening Controller
4.2.2 Modified Cost Function for PI Parameter Optimization Ensuring System Stability..
4.2.3 Genetic Optimization Algorithm and Implementation of the Drive System
4.2.4 Induced Torque Calculation Based on Third- Order Generalized Integral Flux Observer
4.3 Simulation Results Analysis
4.3.1 Evaluation the Cost Function
4.3.2 Verify the Stability of the Drive System
4.3.3 Dynamic Performance Analysis in the Presence of Torque Disorder and Velocity Variation.
4.4 Experimental Results Analysis
4.4.1 Dynamic Performance Analysis in the Event of a Sudden Drop in Velocity
4.4.2 Studying Dynamic Performance Under Conditions of Speed Oscillation and Load Torque Disruption
4.5 Summary
Bibliography
Chapter 5 Advanced Flux-Weakening Control for Interior Permanent Magnet Synchronous Drives
5.1 Driving Strategy Design for an Interior PMSM Drive Considering Flux-Weakening Range
5.1.1 Limiter Modification of the Outer Speed Controller.
5.1.2 Objective Function of the Parameters Optimization for Interior PMSM Drive
5.2 Simulation Results Analysis
5.2.1 Evaluation of the Advanced Objective Function to Adjust the Parameters of the Interior PMSM Control Strategy
5.2.2 Verification of Drive Stability
5.2.3 Dynamic Performance Analysis in the Presence of Changes in the Reference Torque and Speed.
5.3 Experimental Dynamic Performance Analysis in Case of Sudden Variance in Reference Velocity.
5.4 Summary
Bibliography
Chapter 6 Modified First-Order Flux Observer-Based Speed Predictive Control of Interior Permanent Magnet Drives.
6.1 Analysis and Design of the Linear Finite Set MPC for Interior PMSM Drive
6.1.1 Interior PMSM Discrete Plant Model
6.1.2 Conventional Objective Function
6.1.3 Modified Objective Function
6.1.4 Modified Low-Pass Filter Observer
6.1.5 Finite-Set Evaluation Technique
6.2 Simulation Results Analysis
6.2.1 Dynamic Performance Validating of the Linear Predictive Control Drive in a Scenario of Four Quadrants Control
6.2.2 Dynamic Performance Validating of the Linear Predictive Control Drive in a Load Torque Disorder Case
6.2.3 Dynamic Performance Validating of the Linear Predictive Control Drive in a Reference Speed Disorder Case
6.3 Summary
Bibliography
Chapter 7 Adaptive Linear Model Predictive Control for Flux-Weakening Control Based on Particle Swarm Optimization.
7.1 Introduction
7.2 Analysis and Design of the Adaptive Model Predictive Control
7.2.1 Discrete Linear Plant Model
7.2.2 Algorithm to Avoid Over Speed and High Transient Current in Flux-Weakening Region
7.2.3 Adaptive MPC Cost Function
7.2.4 Real-Time Implementation of the Adaptive- Velocity Particle Swarm Optimization Algorithm
7.2.5 Conventional Model Predictive Control
7.3 Simulation Results and Discussion.
7.4 Experimental Results and Discussion
7.4.1 Dynamic Performance of Four-Quadrant Control Study
7.4.2 Dynamic Performance Study in Case of Speed Step-Down Condition
7.4.3 Dynamic Performance Study in Case of Load Torque Step-Down Condition
7.4.4 The Discretization Matrices of the DLPM
7.5 Summary
Bibliography
Chapter 8 Conclusions and Future Work
8.1 Conclusions
8.2 Coverage of Emerging Technologies
8.3 Suggestions for Future Developments
Index