High Performance Control of AC Drives with Matlab/simulink Models -- Contents -- Acknowledgment -- Biographies -- Preface -- 1 Introduction to High Performance Drives -- 1.1 Preliminary Remarks -- 1.2 General Overview of High Performance Drives -- 1.3 Challenges and Requirements for Electric Drives for Industrial Applications -- 1.3.1 Power Quality and LC Resonance Suppression -- 1.3.2 Inverter Switching Frequency -- 1.3.3 Motor Side Challenges -- 1.3.4 High dv/dt and Wave Reflection -- 1.3.5 Use of Inverter Output Filters -- 1.4 Organization of the Book -- References -- 2 Mathematical and Simulation Models of AC Machines -- 2.1 Preliminary Remarks -- 2.2 DC Motors -- 2.2.1 Separately Excited DC Motor Control -- 2.2.2 Series DC Motor Control -- 2.3 Squirrel Cage Induction Motor -- 2.3.1 Space Vector Representation -- 2.3.2 Clarke Transformation (ABC to αβ) -- 2.3.3 Park Transformation (αβ to dq) -- 2.3.4 Per Unit Model of Induction Motor -- 2.3.5 Double Fed Induction Generator (DFIG) -- 2.4 Mathematical Model of Permanent Magnet Synchronous Motor -- 2.4.1 Motor Model in dq Rotating Frame -- 2.4.2 Example of Motor Parameters for Simulation -- 2.4.3 PMSM Model in Per Unit System -- 2.4.4 PMSM Model in α-β (x-y)-Axis -- 2.5 Problems -- References -- 3 Pulse Width Modulation of Power Electronic DC-AC Converter -- 3.1 Preliminary Remarks -- 3.2 Classification of PWM Schemes for Voltage Source Inverters -- 3.3 Pulse Width Modulated Inverters -- 3.3.1 Single-Phase Half-bridge Inverters -- 3.3.2 Single-Phase Full-bridge Inverters -- 3.4 Three-phase PWM Voltage Source Inverter -- 3.4.1 Carrier-based Sinusoidal PWM -- 3.4.2 Third-harmonic Injection Carrier-based PWM -- 3.4.3 Matlab/Simulink Model for Third Harmonic Injection PWM -- 3.4.4 Carrier-based PWM with Offset Addition -- 3.4.5 Space Vector PWM -- 3.4.6 Discontinuous Space Vector PWM.

3.4.7 Matlab/Simulink Model for Space Vector PWM -- 3.4.8 Space Vector PWM in Over-modulation Region -- 3.4.9 Matlab/Simulink Model to Implement Space Vector PWM in Over-modulation Regions -- 3.4.10 Harmonic Analysis -- 3.4.11 Artificial Neural Network-based PWM -- 3.4.12 Matlab/Simulink Model of Implementing ANN-based SVPWM -- 3.5 Relationship between Carrier-based PWM and SVPWM -- 3.5.1 Modulating Signals and Space Vectors -- 3.5.2 Relationship between Line-to-line Voltages and Space Vectors -- 3.5.3 Modulating Signals and Space Vector Sectors -- 3.6 Multi-level Inverters -- 3.6.1 Diode Clamped Multi-level Inverters -- 3.6.2 Flying Capacitor Type Multi-level Inverter -- 3.6.3 Cascaded H-Bridge Multi-level Inverter -- 3.7 Impedance Source or Z-source Inverter -- 3.7.1 Circuit Analysis -- 3.7.2 Carrier-based Simple Boost PWM Control of a Z-source Inverter -- 3.7.3 Carrier-based Maximum Boost PWM Control of a Z-source Inverter -- 3.7.4 Matlab/Simulink Model of Z-source Inverter -- 3.8 Quasi Impedance Source or qZSI Inverter -- 3.8.1 Matlab/Simulink Model of qZ-source Inverter -- 3.9 Dead Time Effect in a Multi-phase Inverter -- 3.10 Summary -- 3.11 Problems -- References -- 4 Field Oriented Control of AC Machines -- 4.1 Introduction -- 4.2 Induction Machines Control -- 4.2.1 Control of Induction Motor using V/f Method -- 4.2.2 Vector Control of Induction Motor -- 4.2.3 Direct and Indirect Field Oriented Control -- 4.2.4 Rotor and Stator Flux Computation -- 4.2.5 Adaptive Flux Observers -- 4.2.6 Stator Flux Orientation -- 4.2.7 Field Weakening Control -- 4.3 Vector Control of Double Fed Induction Generator (DFIG) -- 4.3.1 Introduction -- 4.3.2 Vector Control of DFIG Connected with the Grid (αβ Model) -- 4.3.3 Variables Transformation -- 4.3.4 Simulation Results -- 4.4 Control of Permanent Magnet Synchronous Machine -- 4.4.1 Introduction.

4.4.2 Vector Control of PMSM in dq Axis -- 4.4.3 Vector Control of PMSM in α-β Axis using PI Controller -- 4.4.4 Scalar Control of PMSM -- Exercises -- Additional Tasks -- Possible Tasks for DFIG -- Questions -- References -- 5 Direct Torque Control of AC Machines -- 5.1 Preliminary Remarks -- 5.2 Basic Concept and Principles of DTC -- 5.2.1 Basic Concept -- 5.2.2 Principle of DTC -- 5.3 DTC of Induction Motor with Ideal Constant Machine Model -- 5.3.1 Ideal Constant Parameter Model of Induction Motors -- 5.3.2 Direct Torque Control Scheme -- 5.3.3 Speed Control with DTC -- 5.3.4 Matlab/Simulink Simulation of Torque Control and Speed Control with DTC -- 5.4 DTC of Induction Motor with Consideration of Iron Loss -- 5.4.1 Induction Machine Model with Iron Loss Consideration -- 5.4.2 Matlab/Simulink Simulation of the Effects of Iron Losses in Torque Control and Speed Control -- 5.4.3 Modified Direct Torque Control Scheme for Iron Loss Compensation -- 5.5 DTC of Induction Motor with Consideration of both Iron Losses and Magnetic Saturation -- 5.5.1 Induction Machine Model with Consideration of Iron Losses and Magnetic Saturation -- 5.5.2 Matlab/Simulink Simulation of Effects of both Iron Losses and Magnetic Saturation in Torque Control and Speed Control -- 5.6 Modified Direct Torque Control of Induction Machine with Constant Switching Frequency -- 5.7 Direct Torque Control of Sinusoidal Permanent Magnet Synchronous Motors (SPMSM) -- 5.7.1 Introduction -- 5.7.2 Mathematical Model of Sinusoidal PMSM -- 5.7.3 Direct Torque Control Scheme of PMSM -- 5.7.4 Matlab/Simulink Simulation of SPMSM with DTC -- References -- 6 Non-Linear Control of Electrical Machines Using Non-Linear Feedback -- 6.1 Introduction -- 6.2 Dynamic System Linearization using Non-Linear Feedback -- 6.3 Non-Linear Control of Separately Excited DC Motors.

6.3.1 Matlab/Simulink Non-Linear Control Model -- 6.3.2 Non-Linear Control Systems -- 6.3.3 Speed Controller -- 6.3.4 Controller for Variable m -- 6.3.5 Field Current Controller -- 6.3.6 Simulation Results -- 6.4 Multiscalar model (MM) of Induction Motor -- 6.4.1 Multiscalar Variables -- 6.4.2 Non-Linear Linearization of Induction Motor Fed by Voltage Controlled VSI -- 6.4.3 Design of System Control -- 6.4.4 Non-Linear Linearization of Induction Motor Fed by Current Controlled VSI -- 6.4.5 Stator Oriented Non-Linear Control System (based on Ψs, is) -- 6.4.6 Rotor-Stator Fluxes-based Model -- 6.4.7 Stator Oriented Multiscalar Model -- 6.4.8 Multiscalar Control of Induction Motor -- 6.4.9 Induction Motor Model -- 6.4.10 State Transformations -- 6.4.11 Decoupled IM Model -- 6.5 MM of Double Fed Induction Machine (DFIM) -- 6.6 Non-Linear Control of Permanent Magnet Synchronous Machine -- 6.6.1 Non-Linear Control of PMSM for a dq Motor Model -- 6.6.2 Non-Linear Vector Control of PMSM in α-β Axis -- 6.6.3 PMSM Model in α-β (x-y) Axis -- 6.6.4 Transformations -- 6.6.5 Control System -- 6.6.6 Simulation Results -- 6.7 Problems -- References -- 7 Five-Phase Induction Motor Drive System -- 7.1 Preliminary Remarks -- 7.2 Advantages and Applications of Multi-Phase Drives -- 7.3 Modeling and Simulation of a Five-Phase Induction Motor Drive -- 7.3.1 Five-Phase Induction Motor Model -- 7.3.2 Five-Phase Two-Level Voltage Source Inverter Model -- 7.3.3 PWM Schemes of a Five-Phase VSI -- 7.4 Indirect Rotor Field Oriented Control of Five-Phase Induction Motor -- 7.4.1 Matlab/Simulink Model of Field-Oriented Control of Five-Phase Induction Machine -- 7.5 Field Oriented Control of Five-Phase Induction Motor with Current Control in the Synchronous Reference Frame -- 7.6 Model Predictive Control (MPC) -- 7.6.1 MPC Applied to a Five-Phase Two-Level VSI.

7.6.2 Matlab/Simulink of MPC for Five-Phase VSI -- 7.6.3 Using Eleven Vectors with γ = 0 -- 7.6.4 Using Eleven Vectors with γ = 1 -- 7.7 Summary -- 7.8 Problems -- References -- 8 Sensorless Speed Control of AC Machines -- 8.1 Preliminary Remarks -- 8.2 Sensorless Control of Induction Motor -- 8.2.1 Speed Estimation using Open Loop Model and Slip Computation -- 8.2.2 Closed Loop Observers -- 8.2.3 MRAS (Closed-loop) Speed Estimator -- 8.2.4 The Use of Power Measurements -- 8.3 Sensorless Control of PMSM -- 8.3.1 Control system of PMSM -- 8.3.2 Adaptive Backstepping Observer -- 8.3.3 Model Reference Adaptive System for PMSM -- 8.3.4 Simulation Results -- 8.4 MRAS-based Sensorless Control of Five-Phase Induction Motor Drive -- 8.4.1 MRAS-based Speed Estimator -- 8.4.2 Simulation Results -- References -- 9 Selected Problems of Induction Motor Drives with Voltage Inverter and Inverter Output Filters -- 9.1 Drives and Filters - Overview -- 9.2 Three-Phase to Two-Phase Transformations -- 9.3 Voltage and Current Common Mode Component -- 9.3.1 Matlab/Simulink Model of Induction Motor Drive with PWM Inverter and Common Mode Voltage -- 9.4 Induction Motor Common Mode Circuit -- 9.5 Bearing Current Types and Reduction Methods -- 9.5.1 Common Mode Choke -- 9.5.2 Common Mode Transformers -- 9.5.3 Common Mode Voltage Reduction by PWM Modifications -- 9.6 Inverter Output Filters -- 9.6.1 Selected Structures of Inverter Output Filters -- 9.6.2 Inverter Output Filters Design -- 9.6.3 Motor Choke -- 9.6.4 Matlab/Simulink Model of Induction Motor Drive with PWM Inverter and Differential Mode (Normal Mode) LC Filter -- 9.7 Estimation Problems in the Drive with Filters -- 9.7.1 Introduction -- 9.7.2 Speed Observer with Disturbances Model -- 9.7.3 Simple Observer based on Motor Stator Models -- 9.8 Motor Control Problems in the Drive with Filters -- 9.8.1 Introduction.

9.8.2 Field Oriented Control.