Open AccessSystem design of series Z‐source inverter with feedforward and space vector pulse‐width modulation control strategy
Author(s) -
Tang Yu,
Xie Shaojun
Publication year - 2014
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2013.0100
Subject(s) - feed forward , control theory (sociology) , pulse width modulation , inverter , voltage , z source inverter , modulation (music) , computer science , engineering , physics , control (management) , electrical engineering , control engineering , acoustics , artificial intelligence
For Z‐source inverter (ZSI), the peak DC‐link voltage is the actual voltage fed to the inversion stage. Controlling the peak DC‐link voltage at the constant level can effectively decrease the voltage stress and simplify the design process of the inversion stage. By adopting input feedforward control, the constant peak DC‐link voltage can be achieved. The feedback control of the peak output voltage is utilised to obtain the constant output without steady‐stage error under load variation. Both the peak DC‐link voltage and ac output is controlled to a desired level under different input and load condition. A prototype is built in the lab, and detailed design procedure of the ZSI with space vector pulse‐width modulation scheme is given. Simulation and experimental results are presented to demonstrate the feasibility of the proposed control strategy and parameters design method.