Title :
High conversion ratio converter with ZVS snubber circuit for PV charger application
Author :
Lee, Yuang-Shung ; Huang, Sian-Siou ; Yang, Wei-Yi
Author_Institution :
Dept. of Electr. Eng., Fu Jen Catholic Univ., Taipei, Taiwan
Abstract :
A high conversion ratio DC/DC converter with an active zero-voltage switching (ZVS) snubber circuit incorporated with maximum power point tracking (MPPT) techniques is presented in the paper. The MPPT controllers employ photovoltaic (PV) systems to make the converter output track the maximum PV output power. The active snubber circuit restricts the voltage stresses on the power switches. The simulation and experimental results verify high conversion ratio converter performance. The tracking performance simulations of the perturbation and observation (P&O) and incremental conductance (INC) MPTT are compared in the PV charging system. The tracking performances by INC MPPT controller and waveform of the PV charging system are presented.
Keywords :
DC-DC power convertors; maximum power point trackers; photovoltaic power systems; power generation control; power semiconductor switches; snubbers; zero voltage switching; INC MPPT controller; PV charging system; PV systems; active ZVS snubber circuit; active zero-voltage switching snubber circuit; high conversion ratio DC-DC converter; incremental conductance; maximum PV output power; maximum power point tracking controllers; photovoltaic systems; power switches; voltage stress; Capacitors; Computers; Control systems; Magnetomechanical effects; Process control; Radio frequency;
Conference_Titel :
Power Electronics and Drive Systems (PEDS), 2011 IEEE Ninth International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-999-7
Electronic_ISBN :
2164-5256
DOI :
10.1109/PEDS.2011.6147364
