Title :
High-efficiency inverter for photovoltaic applications
Author :
Trubitsyn, Aleksey ; Pierquet, Brandon J. ; Hayman, Alexander K. ; Gamache, Garet E. ; Sullivan, Charles R. ; Perreault, David J.
Author_Institution :
Res. Lab. of Electron., Massachusetts Inst. of Technol., Cambridge, MA, USA
Abstract :
We introduce a circuit topology and associated control method suitable for high efficiency DC to AC grid-tied power conversion. This approach is well matched to the requirements of module integrated converters for solar photovoltaic (PV) applications. The topology is based on a series resonant inverter, a high frequency transformer, and a novel half-wave cycloconverter. Zero-voltage switching is used to achieve an average efficiency of 95.9% with promise for exceeding 96.5%. The efficiency is also projected to improve as semiconductor transistor technology develops further. Design and control considerations for the proposed approach are presented, along with experimental results that validate the approach.
Keywords :
DC-AC power convertors; network topology; photovoltaic power systems; resonant invertors; zero voltage switching; circuit topology; half wave cycloconverter; high efficiency DC-AC grid tied power conversion; high efficiency inverter; high frequency transformer; module integrated converter; photovoltaic application; semiconductor transistor technology; series resonant inverter; solar photovoltaic application; zero voltage switching; Capacitance; Converters; Inverters; Resonant frequency; Switches; Topology; Zero voltage switching; AC module; Module integrated converter; microinverter; photovoltaic power systems;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5618163
