ABSTRACT
Electrical machines are the rotating machines that are part of the electrical machine domain. When the speed of an electrical machine is higher or lower than the synchronous speed, it is called an asynchronous machine. This chapter discusses an important factor that defines the operation of an asynchronous machine. Distributed photovoltaic grid transformers solar converter step-up transformers are uniquely designed to connect solar farms to the electricity grid in large-scale solar power installations. They are also designed for the additional loading associated with the non-sinusoidal harmonic frequencies often found in inverter-driven transformers, and designs with multiple windings are considered in case they reduce transformer cost, minimize the transformer’s footprint and provide the required functionality. The duty cycle seen in solar farms is not as severe as those in wind farms, but solar power has its share of special considerations that affect transformer design.
