Title :
Low cost inverter suitable for medium-power fuel cell sources
Author :
Krein, P.T. ; Balog, R.
Author_Institution :
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Abstract :
A low-cost high performance fuel cell inverter for 48 V to 120 Vac conversion is described. The design addresses total system cost including battery and battery management while providing a current sourced interface for the fuel cell and galvanic isolation at the output. The inverter topology eliminates the need for a DC intermediate voltage by using an AC-link output inverter. This circuit is based on a square-wave cycloconverter combined with a simple new control approach to produce a "PWM cycloconverter" that supports the use of either IGBTs or SCRs to further reduce the system cost.
Keywords :
PWM power convertors; costing; cycloconvertors; invertors; proton exchange membrane fuel cells; secondary cells; 1.8 kW; 48 to 120 V; AC-link output inverter; IGBT; PWM cycloconverter; SCR; battery management; current sourced interface; fuel cell inverter; galvanic isolation; high performance; inverter topology; low cost inverter; medium-power fuel cell sources; proton exchange membrane fuel cell; square-wave cycloconverter; total system cost; Battery management systems; Circuit topology; Control systems; Costs; Fuel cells; Galvanizing; Insulated gate bipolar transistors; Pulse width modulation; Pulse width modulation inverters; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 2002. pesc 02. 2002 IEEE 33rd Annual
Print_ISBN :
0-7803-7262-X
DOI :
10.1109/PSEC.2002.1023889
