Basic System Analysis

Summary

This chapter sets forth some of the basic concepts and analysis tools that are part of the present‐day power and electric drives area. Even steady‐state ac‐circuit analysis posed a problem until the early 1900s when Charles Stienmetz, who was a less flamboyant colleague of Edison and Tesla, came up with the concept of what is now known as phasors. Electric machines and transformers, which are the backbone of the power industry, are electromagnetic systems. Therefore, magnetic circuits and magnetic coupling play a major role in power and drives systems, and it is necessary to establish the principles of magnetic systems sufficiently to convey the basic operation of the electromagnetic devices. The chapter starts analytical journey into the world of Faraday and Tesla with the transformer. It is devoted to the introduction of two‐ and three‐phase systems.