Modeling Power Electronics and Interfacing Energy Conversion Systems

Discusses the application of mathematical and engineering tools for modeling, simulation and control oriented for energy systems, power electronics and renewable energy

This book builds on the background knowledge of electrical circuits, control of dc/dc converters and inverters, energy conversion and power electronics. The book shows readers how to apply computational methods for multi-domain simulation of energy systems and power electronics engineering problems. Each chapter has a brief introduction on the theoretical background, a description of the problems to be solved, and objectives to be achieved. Block diagrams, electrical circuits, mathematical analysis or computer code are covered. Each chapter concludes with discussions on what should be learned, suggestions for further studies and even some experimental work.

• Discusses the mathematical formulation of system equations for energy systems and power electronics aiming state-space and circuit oriented simulations

• Studies the interactions between MATLAB and Simulink models and functions with real-world implementation using microprocessors and microcontrollers

• Presents numerical integration techniques, transfer-function modeling, harmonic analysis and power quality performance assessment

• Examines existing software such as, MATLAB/Simulink, Power Systems Toolbox and PSIM to simulate power electronic circuits including the use of renewable energy sources such as wind and solar sources

The simulation files are available for readers who register with the Google Group: power-electronics-interfacing-energy-conversion-systems@googlegroups.com. After your registration you will receive information in how to access the simulation files, the Google Group can also be used to communicate with other registered readers of this book.

Autorentext

Marcelo Godoy Simões is the director of the Center for Advanced Control of Energy and Power Systems (ACEPS) at Colorado School of Mines. He was an US Fulbright Fellow for Aalborg University, Institute of Energy Technology (Denmark). He is IEEE Fellow, with the citation: "for applications of artificial intelligence in control of power electronics systems." Dr. Simões is a pioneer to apply neural networks and fuzzy logic in power electronics, motor drives and renewable energy systems. He is co-author of the book Integration of Alternative Sources of Energy (Wiley 2006), now in the second edition.

Felix A. Farret is co-author of the book Integration of Alternative Sources of Energy (Wiley 2006, now in the second edition). Currently he is a Professor in the Department of Processing Energy, Federal University of Santa Maria, Brazil. Since 1974, he has taught undergraduate and graduate courses and has been conducting research and development in industrial electronics and alternative energy sources.

Inhalt

Foreword xi

Preface xiii

1 Introduction to Electrical Engineering Simulation 1

1.1 Fundamentals of State-Space-Based Modeling 4

1.2 Example of Modeling an Electrical Network 6

1.3 Transfer Function 9

1.3.1 State Space to Transfer Function Conversion 10

1.4 Modeling and Simulation of Energy Systems and Power Electronics 12

1.5 Suggested Problems 18

Further Reading 25

2 Analysis of Electrical Circuits with Mesh and Nodal Analysis 27

2.1 Introduction 27

2.2 Solution of Matrix Equations 28

2.3 Laboratory Project : Mesh and Nodal Analysis of Electrical Circuits with Superposition Theorem 29

2.4 Suggested Problems 37

References 40

Further Reading 40

3 Modeling and Analysis of Electrical Circuits with Block Diagrams 43

3.1 Introduction 43

3.2 Laboratory Project: Transient Response Study and Laplace Transform-Based Analysis Block Diagram Simulation 45

3.3 Comparison with Phasor-Based Steady-State Analysis 52

3.4 Finding the Equivalent Thèvenin 54

3.5 Suggested Problems 56

Further Reading 58

4 Power Electronics: Electrical Circuit-Oriented Simulation 61

4.1 Introduction 61

4.2 Case Study: Half-Wave Rectifier 67

4.3 Laboratory Project: Electrical Circuit Simulation Using PSIM and Simscape Power Systems MATLAB Analysis 72

4.4 Suggested Problems 79

Further Reading 81

5 Designing Power Electronic Control Systems 83

5.1 Introduction 83

5.1.1 Control System Design 85

5.1.2 ProportionalIntegral Closed-Loop Control 86

5.2 Laboratory Project: Design of a DC/DC Boost Converter Control 89

5.2.1 Ideal Boost Converter 89

5.2.2 Small Signal Model and Deriving the Transfer Function of Boost Converter 90

5.2.3 Control Block Diagram and Transfer Function 93

5.3 Design of a Type III Compensated Error Amplifier 95

5.3.1 K Method 95

5.3.2 Poles and Zeros Placement in the Type III Amplifier 96

5.4 Controller Design 97

5.5 PSIM Simulation Studies for the DC/DC Boost Converter 99

5.6 Boost Converter: Average Model 99

5.7 Full Circuit for the DC/DC Boost Converter 103

5.8 Laboratory Project: Design of a Discrete Control in MATLAB Corunning with a DC Motor Model in Simulink 107

5.9 Suggested Problems 112

References 116

Further Reading 116

6 Instrumentation and Control Interfaces for Energy Systems and Power Electronics 117

6.1 Introduction 117

6.1.1 Sensors and Transducers for Power Systems Data Acquisition 118

6.2 Passive Electrical Sensors 119

6.2.1 Resistive Sensors 119

6.2.2 Capacitive Sensors 121

6.2.3 Inductive Sensors 123

6.3 Electronic Interface for Computational Data in Power Systems and Instrumentation 125

6.3.1 O perational Amplifiers 125

6.4 Analog Amplifiers for Data Acquisition and Power System Driving 125

6.4.1 Level Detector or Comparator 126

6.4.2 Standard Differential Amplifier for Instrumentation and Control 127

6.4.3 O ptically Isolated Amplifier 128

6.4.4 The VI Converter of a Single Input and Floating Load 130

6.4.5 Schmitt Trigger Comparator 131

6.4.6 Voltage-Controlled Oscillator (VCO) 131

6.4.7 Phase Shifting 131

6.4.8 Precision Diode, Precision Rectifier, and the Absolute Value Amplifier 134

6.4.9 High-Gain Amplifier with Low-Value Resistors 136

6.4.10 Class B Feedback PushPull Amplifiers 137

6.4.11 Triangular Waveform Generator 137

6.4.12 Sinusoidal Pulse Width Modulation (PWM) 138

6.5 Laboratory Project: Design a PWM Controller with Error Amplifier 140

6.6 Suggested Problems 140

References 145

7 Modeling Electrical Machines 147 7.1 Introduction to Modeling Electrical Mac...