Title :
The bidirectional Z-source inverter for energy storage application
Author :
Rabkowski, Jacek
Author_Institution :
Warsaw Univ. of Technol, Warsaw
Abstract :
Paper describes development of a three-phase bidirectional Z-source inverter (ZSI) interfacing an energy storage and supply network. Idea of bidirectional operation of ZSI is presented and simply solution of the capacitor voltage over boost problem is proposed. Issue of correct selection of voltage levels and minimum storage voltage for grid-connected inverter is discussed. Selection of the suitable PWM method and design process with special attention on Z-network passive elements is done in reference to comparable system of VSI supported by DC/DC converter. Finally, considerations are illustrated by laboratory test results of grid-connected three phase bidirectional Z-source inverter.
Keywords :
DC-DC power convertors; energy storage; power grids; DC-DC converter; Z-network passive elements; Z-source inverter; bidirectional operation; capacitor voltage; energy storage; grid-connected inverter; supply network; Capacitors; DC-DC power converters; Design methodology; Energy storage; Laboratories; Process design; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Voltage; PWM; Z-source inverter; energy storage; supercapacitor;
Conference_Titel :
Power Electronics and Applications, 2007 European Conference on
Conference_Location :
Aalborg
Print_ISBN :
978-92-75815-10-8
Electronic_ISBN :
978-92-75815-10-8
DOI :
10.1109/EPE.2007.4417265
