ABSTRACT
The models of power plant components presented in this chapter are necessarily of various kinds. Some of them are linear but their impedances vary with frequency in a nonlinear fashion, such as transmission lines, while some others are decidedly nonlinear, such as power converters. Other plant components may behave only as a mild nonlinearity, such as power transformers. The chapter begins by presenting a popular tool used in the study of unbalanced systems—the long—enduring symmetrical components.
