If you need these topics, use Dubey for the fundamentals (rectifiers, choppers, steady-state stability, V/f control) and then switch to a modern text like for vector control.

G.K. Dubey's book on electrical drives is an essential resource for anyone working in the field of electrical engineering. The book provides a comprehensive understanding of electrical drives, which is critical for designing and developing efficient and reliable drive systems. Some of the reasons why this book is important include:

The book spends a lot of time on steady-state operation (average voltages and currents). For exams, you must be able to derive the average output voltage of a converter feeding a motor back EMF.

For those interested in accessing G.K. Dubey's book on electrical drives in PDF format, there are several options available:

Many engineering textbooks bury the reader in equations without explaining the "why." Dubey starts with the physical behavior of the motor—how torque is developed, how current flows—and then introduces the mathematics. This approach makes the book suitable for self-study.

Search for "Fundamentals of Electrical Drives GK Dubey" on Google Books. While you cannot download the full PDF, you can read substantial portions (often up to 20% of the book) for free. This is perfect for checking if the book covers your specific topic.