This book is intended to explain the technical principles involved in
the many AC variable speed drive systems available today. It deals with
all the DC link inverter and direct AC to AC converter systems that are
in commercial use. The principles of AC motors are considered
specifically from the variable frequency point of view, and this chapter
concentrates on the effects of harmonics. The different types of power
semiconductor switches are considered separately from the drive systems
in which they are used.
A total of seven separate and technically different drive systems are
considered in such a way that their principles can be fully understood
and their performance capabilities explained. Square wave and pulse
width modulated DC link inverter systems, cycloconverters and slip power
recovery drives are all included in this comprehensive book.
This book has been written so that it can be understood by general
engineers, not just by experts in the field. It should therefore be of
great use to any engineer involved with variable speed drives in any
capacity. It should also be of interest to university and college
electrical engineering departments and students.