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http://dx.doi.org/10.1109/08ias.2008.301

has been cited by the following article:

• TITLE: Closed Loop Control of Bi-Directional Soft Switched Quasi Z-Source DC-DC Converter

  AUTHORS: A. Suresh, M. R. Rashmi, V. Madusuthanan, P. Vinoth Kumar

  KEYWORDS: Quasi Z-Source Network, PSIM, Soft Switching, Switching Losses, Smart Control, PI Controller Design

  JOURNAL NAME: Circuits and Systems, Vol.7 No.5, April 29, 2016

  ABSTRACT: Quasi Z-source converter is a single stage soft switched power converter derived from Z-source converter topology, employing an impedance network coupling the source with the converter. The quasi Z-source source converter can buck or boost the voltage and current flow is bidirectional. The duty cycle of the switch can be adjusted to maintain constant voltage during load change. To obtain constant output voltage, proper controller design is a must. This paper presents closed loop control of quasi Z-source converter using PI controller where controller parameters are estimated using the small signal model of the entire system. The transfer function of the system with AC sweep is used to obtain appropriate proportional and integral gain constants to reduce transient dynamics and to reduce steady state error.