A novel technique for power inverter control based on a single voltage sensor

Inverters are used to create single or polyphase AC voltages from a DC supply. A very common application for single-phase inverters are so-called "uninterruptable power supplies" (UPS) for computers and other critical loads. For sinusoidal AC outputs, the magnitude, frequency, and phase should be controllable. The purpose of this research, in collaboration with Astrid Energy Enterprises, is to design and realize an innovative method of feedback control for inverter systems based on a single voltage sensor. This paper gives a detailed description of the system carried out and its potentiality.