Title :
New architecture single-phase micro inverter with cascaded low voltage DC/DC cells
Author :
Chen, Frank ; Utsav, Somani ; Batarseh, Issa ; Shen, John
Author_Institution :
Univ. of Central Florida, Orlando, FL, USA
fDate :
Sept. 30 2012-Oct. 4 2012
Abstract :
A new architecture using multi-level lows voltage DC/DC cells with super high power density is presented in this paper. The new class inverter topology is based on cascaded low-voltage DC/DC converter cells that will benefit from the hyper-competitive DC/DC computer/telecom converter global supply chain and manufacturing infrastructures. Furthermore, the switching frequency of each DC/DC cell can be design at high switching frequency while boundary mode control is adopted to achieve zero voltage switching (ZVS) reducing switching loss of power semiconductors. In addition, a method is illustrated to achieve minimum number of the Total Harmonics Distortion (THD) based on the different stair-steps of output waveforms. Finally, the concept of the novel architecture is built by Matlab simulink to verify the feasibility. Finally, a prototype with single phase is also set up to test the performance and verify the new architecture for micro-inverter application.
Keywords :
DC-DC power convertors; power semiconductor devices; zero voltage switching; DC/DC computer-telecom converter; THD; ZVS; architecture single-phase microinverter; cascaded low voltage DC/DC cells; total harmonics distortion; zero voltage switching; Computer architecture; Harmonic analysis; Inverters; Power harmonic filters; Prototypes; Switching frequency; Topology;
Conference_Titel :
Telecommunications Energy Conference (INTELEC), 2012 IEEE 34th International
Conference_Location :
Scottsdale, AZ
Print_ISBN :
978-1-4673-0999-8
Electronic_ISBN :
2158-5210
DOI :
10.1109/INTLEC.2012.6374526