THE NEXT GENERATION GRID-CONNECTED PV INVERTERS FOR HIGH PENETRATION APPLICATIONS By YAN ZHOU

THE NEXT GENERATION GRID-CONNECTED PV INVERTERS FOR HIGH
PENETRATION APPLICATIONS
By
YAN ZHOU
A Dissertation submitted to the
Department of Electrical and Computer Engineering
in partial fulfillment of the requirements for the degree of
Doctor of Philosophy Degree
THE FLORIDA STATE UNIVERSITY
ABSTRACT The increasing consumer demand and government incentives are driving the rapid growth of renewable energy generation. In particularly, the number of distributed photovoltaic (PV) system installations is increasing quickly. However, the high cost of the PV systems and the potential impacts on the safe operation of utility grid could become barriers to their future expansion. The transformerless cascaded multilevel inverter (CMI) is considered to be a promising topology alternative for low-cost and high-efficiency PV systems. This research work presents a single-phase transformerless PV system based on cascaded quasi-Z-source inverters (qZSI). In this system, each qZSI module is connected to a single PV panel and serves as a PV moduleintegrated converter (MIC).
FULL THESIS
http://diginole.lib.fsu.edu/cgi/viewcontent.cgi?article=7888&context=etd