Four quadrant voltage sag/swell compensation with interphase quasi-Z-source AC-AC topology

Qin Lei, Fang Z. Peng

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

This paper proposes a new type of interphase voltage sag/swell compensator based on voltage-fed quasi-Z-source ac-ac converter to implement a four quadrant voltage injection. By PWM duty-ratio control, the converter performs as a "solid-state transformers" to provide a larger range of output ac voltage with buck-boost, reversing or maintaining phase angle, reducing in-rush and harmonic current, reducing passive component ratings, and improving reliability. The injected voltage amplitude can vary in a large range and its phase angle can vary in the whole 2π range due to the circuit features. Compared to conventional parallel series back to back dynamic compensator, the quasi-Z-source converter has smaller capacitor and inductor requirement, and also smaller switch voltage and current stress. The theory analysis can be divided into three parts: basic circuit analysis; passive component stress and switch stress comparison to conventional topology; voltage sag/swell compensation strategy. Simulation and laboratory test are also carried out on a prototype to validate the theory analysis.

Original languageEnglish (US)
Title of host publication2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011
Pages2013-2019
Number of pages7
DOIs
StatePublished - May 13 2011
Externally publishedYes
Event26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011 - Fort Worth, TX, United States
Duration: Mar 6 2011Mar 10 2011

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011
CountryUnited States
CityFort Worth, TX
Period3/6/113/10/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Lei, Q., & Peng, F. Z. (2011). Four quadrant voltage sag/swell compensation with interphase quasi-Z-source AC-AC topology. In 2011 26th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2011 (pp. 2013-2019). [5744873] (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). https://doi.org/10.1109/APEC.2011.5744873