ABSTRACT
Every day, one utilizes and largely depends on thousands of electromechanical systems. More than 99.9% of electricity is produced by electric machines (generators) that convert one form of energy (nuclear, hydro, solar, thermal, wind, and other) into electric energy. By increasing the efficiency of power generators by 1%, one will reduce the oil and coal consumption by millions of barrels and tons per day. Synchronous generators, which induce the voltage in power systems, are covered in this book. Conventional synchronous generators are utilized in power plants, whereas permanent-magnet synchronous generators are widely used in auxiliary power units, low/mediumpower alternative energy modules, and so on. Our major emphasis is focused on high-performance electromechanical systems and motion devices for electric drives and servosystems. For example, in “high-end” applications such as computer and camera hard drives, two electromechanical systems (drive and servo) are utilized, as reported in Figure 1.1. Without those electromechanical systems and actuators, one would not be able to assess the hard drive memory. In cars, there are hundreds of electromechanical systems, from the starter/alternator to various solenoids, fans, microphones, speakers, and even a traction electric drive in hybrid cars.
