Modern Power Electronics and AC Drives by Bimal K. Bose
The book "Modern Power Electronics and AC Drives" by Professor Bimal K. Bose is considered an essential and comprehensive reference in the field of Electrical Power Engineering and Motion Control, particularly concerning AC Electrical Machines (AC Drives). It serves as a complete curriculum designed specifically for upper-level undergraduate and graduate students in electrical engineering, while also representing a wealth of knowledge and expertise for professional engineers and researchers working in Industrial Automation and Speed Control domains.
Core Content of the Book: Conversion and Control
The book begins with a solid explanation of the fundamentals of Electrical Power Conversion and Control using Power Semiconductor Switches. It skillfully integrates theory with practical application, demonstrating how Power Electronics and Motion Control systems utilize AC Electrical Machines to achieve high efficiency and precision in Industrial Systems and Transportation Applications.
Key Concepts Covered in the Book:
- Power Electronics Switches: A detailed study of components such as Thyristors, Insulated Gate Bipolar Transistors (IGBT), and MOSFETs, and their operation within converter circuits.
- Converters: A focus on Rectifiers, Inverters, and DC-to-DC Converters (Choppers) circuits, which form the backbone of any modern AC drive system.
- AC Motor Control (AC Motor Control): This is the most crucial part, explaining the techniques for Speed Control of Induction Motors and Synchronous Motors, covering both Scalar Control and Vector Control techniques.
Book Structure and Advanced Control Techniques
The book is distinguished by its organized presentation of information, progressing from the basics to Advanced Control Techniques, making it a comprehensive reference for Electrical Control Engineering.
1. Fundamentals of Power Electronics and Applications
Bose dedicates his initial chapters to establishing a strong foundation in Power Electronic Engineering, explaining conversion theory and how to design high-efficiency power conversion circuits. He emphasizes the importance of Circuit Analysis and Thermal Design for power switches to ensure system reliability.
This is where the book excels, with its in-depth coverage of AC Drives, which are key to modern automation. The book provides a mathematical and physical description of AC machines, then moves on to the techniques for driving these machines:
- Scalar Control (V/f): This is the traditional and simplest method for Speed Control, offering a practical example of its application in ventilation and pumping systems where fast dynamic response is not critical.
- Vector Control (Field-Oriented Control - FOC): This is a powerful keyword in the book and in Industry 4.0. Bose explains how the FOC technique allows for separate and precise control of the motor's Torque and Magnetic Flux, thus mimicking the performance of DC Motors.
- Practical Example from the Book: Analysis of a complete sensor-based Vector Control system for a high-performance robotic application that requires fast torque response.
- Direct Torque Control (DTC): This is considered an alternative and innovative approach to Vector Control. Bose explains the DTC theory, which achieves excellent torque and flux control without the need for Pulse Width Modulation (PWM) adjustment, thereby reducing computational complexity and increasing dynamic response.
Practical Applications and the Book's Industrial Importance
Professor Bose focuses heavily on practical applications, enhancing the book's value as a reference for Automation Engineers and System Designers.
1. The Role of Power Electronics in Transportation and Renewable Energy
The book is not limited to industrial machines but expands its scope to include:
- Electric Vehicles (EVs): Detailed explanation of the role of high-efficiency Inverters in controlling traction motors.
- Renewable Energy: The use of Power Converters to interface solar and wind power systems with the Smart Grid.
Conclusion: An Essential Reference for the Engineering Future
The book "Modern Power Electronics and AC Drives" by Bimal K. Bose is one of the most important references in Advanced Electrical Power Engineering. It equips the reader with the theoretical knowledge and practical skills necessary to design and maintain high-performance Motion Control Systems. Whether you are a student seeking to understand the fundamentals of power electronics or a professional engineer looking for the latest in Vector Control and Industrial Automation technologies, this book represents a true investment in your career. This reference is indispensable for all those interested in Electric Motor Technology and Digital Control.