Impedance sourceconverters overcome the boost ratio limitation of traditional solutions in a single-stage topology through embedding a network with inductors, capacitors, and switches/diodes. In addition, it is possible to get rid of the dead time between phase-leg switches thus to enhance the reliability of the entire power system. For this challenging topology, widespread investigations have been performed on improved topologies, modified modulation techniques, advanced control methods, and various applications including electric drives, renewable energy systems, transportation, battery energy storage, etc. The aim of this special session is to concentrate all related contributions on impedance source converters to provide a common environment for presentation and discussion on their emerging research, development, and applications.