TY - JOUR
T1 - Current-fed quasi-z-source inverter with voltage buck-boost and regeneration capability
AU - Yang, Shuitao
AU - Peng, Fang Z.
AU - Lei, Qin
AU - Inoshita, Ryosuke
AU - Qian, Zhaoming
N1 - Funding Information:
Manuscript received November 8, 2009; revised June 3, 2010; accepted September 27, 2010. Date of publication December 30, 2010; date of current version March 18, 2011. Paper 2009-IPCC-385.R1, presented at the 2009 IEEE Energy Conversion Congress and Exposition, San Jose, CA, September 20–24, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Industrial Power Converter Committee of the IEEE Industry Applications Society. This work was supported in part by DENSO Corporation, Japan.
PY - 2011/3
Y1 - 2011/3
N2 - The conventional current-source inverter has two major problems: unidirectional power flow and voltage boost operation, which make it impossible to be used in many applications, such as hybrid electric vehicles and general-purpose variable-speed motor drives. Z-source inverters (ZSIs) can solve both problems. Quasi-ZSIs (qZSIs) were recently proposed as an important improvement to traditional ZSIs. Besides the advantages inherited from ZSIs, qZSIs also have several of their own merits. This paper presents a comprehensive study on the new features of current-fed qZSI, including the advantageous buck-boost function, improved reliability, reduced passive component ratings, and unique regeneration capability. The current-fed qZSIs are bidirectional with an additional diode, unlike the voltage-fed ZSI that needs a switch to achieve bidirectional power flow. A modified space vector pulse-width-modulation method is proposed, and the available operating regions for motoring and regeneration operation are analyzed in this paper. Since the current-fed qZSI has the same operation as the current-fed ZSI, many results of this paper are also applicable to the current-fed ZSI. A reverse-blocking insulated-gate bipolar-transistor- based current-fed qZSI prototype was developed in the laboratory. Simulation and experimental results are shown to verify the theoretical analysis.
AB - The conventional current-source inverter has two major problems: unidirectional power flow and voltage boost operation, which make it impossible to be used in many applications, such as hybrid electric vehicles and general-purpose variable-speed motor drives. Z-source inverters (ZSIs) can solve both problems. Quasi-ZSIs (qZSIs) were recently proposed as an important improvement to traditional ZSIs. Besides the advantages inherited from ZSIs, qZSIs also have several of their own merits. This paper presents a comprehensive study on the new features of current-fed qZSI, including the advantageous buck-boost function, improved reliability, reduced passive component ratings, and unique regeneration capability. The current-fed qZSIs are bidirectional with an additional diode, unlike the voltage-fed ZSI that needs a switch to achieve bidirectional power flow. A modified space vector pulse-width-modulation method is proposed, and the available operating regions for motoring and regeneration operation are analyzed in this paper. Since the current-fed qZSI has the same operation as the current-fed ZSI, many results of this paper are also applicable to the current-fed ZSI. A reverse-blocking insulated-gate bipolar-transistor- based current-fed qZSI prototype was developed in the laboratory. Simulation and experimental results are shown to verify the theoretical analysis.
KW - Current-source inverter (CSI)
KW - Z-source inverter (ZSI)
KW - regeneration capability
KW - voltage buck–boost
KW - voltage-source inverter (VSI)
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U2 - 10.1109/TIA.2010.2102995
DO - 10.1109/TIA.2010.2102995
M3 - Article
AN - SCOPUS:79952948445
SN - 0093-9994
VL - 47
SP - 882
EP - 892
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 2
M1 - 5677466
ER -