Open AccessGrid‐tied single source quasi‐ Z ‐source cascaded multilevel inverter for PV applications
Author(s) -
Guisso R.A.,
Andrade A.M.S.S.,
Hey H.L.,
Martins M.L. da S.
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.8013
Subject(s) - inverter , photovoltaic system , maximum power point tracking , topology (electrical circuits) , power (physics) , electronic engineering , grid , grid tie inverter , computer science , voltage , control theory (sociology) , engineering , electrical engineering , mathematics , control (management) , physics , geometry , quantum mechanics , artificial intelligence
A new cascaded multilevel topology is proposed in this study. It is denominated single DC source quasi‐Z‐source cascaded multilevel inverter (SS qZS‐CMI). The SS qZS‐CMI performs at maximum power point tracking of the photovoltaic (PV) array with a single inverter module and each of the inverter modules shares an equal amount of the power of the whole system. The SS qZS‐CMI has the capacity to equally regulate the peak voltage on each inverter module by means of the dual control loop of the main inverter module and the shoot‐trough state of the auxiliary inverter modules, ensuring the symmetry of the cascaded multilevel inverter. Experimental results verify the proposed topology.