A NEW CONTROL METHOD OF Z-SOURCE CONVERTER WITH PEM FUEL CELL IN PSCAD/EMTDC ENVIRONMENT

This paper proposes a generalized model of Proton exchange membrane fuel cell (PEMFC) with Z-source converter design in PSCAD/EMTDC simulator. The fuel cell model considers the chemical and electrical parameters, and it is composed by five inputs and one electrical output. In the other words, the user needs to filled up five parameters of fuel cell to obtain the dc voltage output, which feeds Z-source converter. Although the Z-Source concept can be applied to all power conversion (dc to ac, ac to dc, ac to ac and dc to dc), this paper analyses its capability to dc-ac power conversion and boosting voltage, this is an extremely attractive quality particularly for fuel cell power which has low output voltage. A new Z-Source voltage control is also proposed based on anti-wind up control technique. Simulations results of PEM fuel cell/Z-source converter system are presented and polarization curves as well.