Synchronous Machines

This chapter is dedicated to the detailed description of the function and operating characteristics of synchronous machines in their various forms. In particular, the description of the machine behavior and the control in d–q coordinates are explained. This results in the equations for describing the generation of torque from synchronous torque and reluctance torque. The parameter plane is introduced in a short section. It enables a systematic rotor design to achieve the desired torque–speed behavior. Finally, critical operating states such as short circuit and sudden loss of load are discussed, which must be mastered in the event of a fault.