Enhanced-Boost Z-Source Inverters With Alternate-Cascaded Switched- and Tapped-Inductor Cells

In this paper, a number of alternate-cascaded switched-inductor and tapped-inductor networks have been proposed for Z-source inverters. The resulting topologies have enhanced voltage-boost capability while retaining the usual voltage-buck flexibility of a conventional voltage-source inverter. The enhanced capability is achieved by using lower rated components that can more readily be found. These components are assembled without direct series connection and hence avoid unbalanced voltage sharing problems and losses linked to balancing resistive circuits. The component count is, however, high, meaning that the proposed inverters should only be considered when a design requires multiple lower rated components rather than a few higher rated ones. Analysis, simulation, and experimental results have already validated the concepts discussed.

[1]  F. Peng,et al.  Operation Modes and Characteristics of the Z-Source Inverter With Small Inductance or Low Power Factor , 2005, IEEE Transactions on Industrial Electronics.

[2]  Joeri Van Mierlo,et al.  Control of a bidirectional Z-Source Inverter for hybrid electric vehicles in motoring, regenerative braking and grid interface operations , 2010, 2010 IEEE Electrical Power & Energy Conference.

[3]  Johann W. Kolar,et al.  Active voltage balancing of DC-link electrolytic capacitors , 2008 .

[4]  Adrian Ioinovici,et al.  Switched-Capacitor/Switched-Inductor Structures for Getting Transformerless Hybrid DC–DC PWM Converters , 2008, IEEE Transactions on Circuits and Systems I: Regular Papers.

[5]  Frede Blaabjerg,et al.  Asymmetrical and symmetrical embedded Z-source inverters , 2011 .

[6]  Sumedha Rajakaruna,et al.  Steady-State Analysis and Designing Impedance Network of Z-Source Inverters , 2010, IEEE Transactions on Industrial Electronics.

[7]  Joel Anderson,et al.  A Class of Quasi-Z-Source Inverters , 2008, 2008 IEEE Industry Applications Society Annual Meeting.

[8]  Shaojun Xie,et al.  Improved Z-Source Inverter With Reduced Z-Source Capacitor Voltage Stress and Soft-Start Capability , 2009, IEEE Transactions on Power Electronics.

[9]  Dmitri Vinnikov,et al.  Quasi-Z-Source-Based Isolated DC/DC Converters for Distributed Power Generation , 2011, IEEE Transactions on Industrial Electronics.

[10]  Fang Zheng Peng,et al.  Z-Source-Converter-Based Energy-Recycling Zero-Voltage Electronic Loads , 2009, IEEE Transactions on Industrial Electronics.

[11]  F. Blaabjerg,et al.  Hybrid-Source Impedance Networks: Layouts and Generalized Cascading Concepts , 2011, IEEE Transactions on Power Electronics.

[12]  Poh Chiang Loh,et al.  Pulse-width modulation of Z-source inverters , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..

[13]  Miao Zhu,et al.  Generalized multi-cell switched-inductor and switched-capacitor Z-source inverters , 2010, 2010 IEEE International Conference on Sustainable Energy Technologies (ICSET).

[14]  Fang Lin Luo,et al.  Topology analysis of a switched-inductor Z-source inverter , 2010, 2010 5th IEEE Conference on Industrial Electronics and Applications.

[15]  Francisco A. S. Neves,et al.  Modulation for Three-Phase Transformerless Z-Source Inverter to Reduce Leakage Currents in Photovoltaic Systems , 2011, IEEE Transactions on Industrial Electronics.

[16]  Xing Zhang,et al.  Single-Phase Uninterruptible Power Supply Based on Z-Source Inverter , 2008, IEEE Transactions on Industrial Electronics.

[17]  Longya Xu,et al.  Dynamic Modeling and Analysis of $Z$ Source Converter—Derivation of AC Small Signal Model and Design-Oriented Analysis , 2007, IEEE Transactions on Power Electronics.

[18]  Frede Blaabjerg,et al.  Tapped-inductor Z-source inverters with enhanced voltage boost inversion abilities , 2010, 2010 IEEE International Conference on Sustainable Energy Technologies (ICSET).

[19]  Shuai Jiang,et al.  Low-Cost Semi-Z-source Inverter for Single-Phase Photovoltaic Systems , 2011, IEEE Transactions on Power Electronics.

[20]  Fang Zheng Peng.  Z-source inverter , 2002 .

[21]  Wei Qian,et al.  Trans-Z-Source Inverters , 2010, IEEE Transactions on Power Electronics.

[22]  Ryszard Strzelecki,et al.  New type T-Source inverter , 2009, 2009 Compatibility and Power Electronics.

[23]  F.Z. Peng,et al.  Four quasi-Z-Source inverters , 2008, 2008 IEEE Power Electronics Specialists Conference.

[24]  Fang Lin Luo,et al.  Switched Inductor Z-Source Inverter , 2010, IEEE Transactions on Power Electronics.

[25]  Malik Elbuluk,et al.  Voltage and Current Programmed Modes in Control of the Z-Source Converter , 2008, 2008 IEEE Industry Applications Society Annual Meeting.

[26]  P.J. Grbovic.  Loss-Free Balancing Circuit for Series Connection of Electrolytic Capacitors Using an Auxiliary Switch-Mode Power Supply , 2009, IEEE Transactions on Power Electronics.

[27]  Friedrich Wilhelm Fuchs,et al.  Converter Systems for Fuel Cells in the Medium Power Range—A Comparative Study , 2010, IEEE Transactions on Industrial Electronics.

[28]  F.Z. Peng.  Z-source inverter for motor drives , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[29]  F. Blaabjerg,et al.  Embedded EZ-Source Inverters , 2010, IEEE Transactions on Industry Applications.