Single to three-phase conversion by high-leg phase derivation

Since single-phase motors are limited in size and application, electrical power converter devices are used in connecting single-phase utilities with necessary three-phase motor loading and types. This paper explores two novel methods of single to three-phase conversion. Each method relies on creating or deriving a third phase to complement existing single-phase, three-wire configurations. An ideal three-phase voltage source case is modeled and these two cases are compared against the ideal three-phase source conditions. Each case analyzes line and motor current, as well as torque and speed profiles. Required concepts in electrical machinery, power distribution, and power electronics are discussed to familiarize the reader with the proposed conversion techniques. Some concepts are modified for application specific use, but retain basic form and functionality.