Three-Phase Quasi-Z-Source Inverter With Constant Common-Mode Voltage for Photovoltaic Application

In trasformerless grid-connected photovoltaic (PV) systems, common-mode voltage (CMV) fluctuations cause leakage current flow through the stray capacitance of the PV panels. Shoot-through states in a quasi-Z-source inverter (q-ZSI) increase the amplitude of high-order harmonics of CMV. In this paper, by using the modulation technique based on odd pulse width modulation and minor change in the Z network of the three-phase q-ZSI, the leakage current is blocked. No extra semiconductor element is added. By the proposed technique, CMV is kept nearly constant during switching cycles. The experimental results for CMV analysis in a $\text{1}\;{\text{kW}}$ prototype are presented to verify the theoretical analysis.

[1]  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.

[2]  Jianfeng Liu,et al.  A Digital Current Control of Quasi-Z-Source Inverter With Battery , 2013, IEEE Transactions on Industrial Informatics.

[3]  Bulent Sarlioglu,et al.  Reduction of Common Mode Voltage and Conducted EMI Through Three-Phase Inverter Topology , 2017, IEEE Transactions on Power Electronics.

[4]  F. Peng,et al.  A Family of Z-source and Quasi-Z-source DC-DC Converters , 2009, 2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition.

[5]  Baoming Ge,et al.  Hybrid pulsewidth modulated single-phase quasi-Z-source grid-tie Photovoltaic power system , 2015, 2015 IEEE Applied Power Electronics Conference and Exposition (APEC).

[6]  Mohsen Hamzeh,et al.  High-performance hybrid photovoltaic -battery system based on quasi-Z-source inverter: application in microgrids , 2015 .

[7]  A.M. Hava,et al.  A Near-State PWM Method With Reduced Switching Losses and Reduced Common-Mode Voltage for Three-Phase Voltage Source Inverters , 2009, IEEE Transactions on Industry Applications.

[8]  Mohsen Hamzeh,et al.  Maximum constant boost approach for controlling quasi-Z-source-based interlinking converters in hybrid AC–DC microgrids , 2016 .

[9]  Hui Li,et al.  A Single-Phase PV Quasi-Z-Source Inverter With Reduced Capacitance Using Modified Modulation and Double-Frequency Ripple Suppression Control , 2016, IEEE Transactions on Power Electronics.

[10]  Yi Liu,et al.  Optimized Common-Mode Voltage Reduction PWM for Three-Phase Voltage-Source Inverters , 2016, IEEE Transactions on Power Electronics.

[11]  Hurng-Liahng Jou,et al.  Novel Transformerless Grid-Connected Power Converter With Negative Grounding for Photovoltaic Generation System , 2012, IEEE Transactions on Power Electronics.

[12]  A. M. Hava,et al.  A High-Performance PWM Algorithm for Common-Mode Voltage Reduction in Three-Phase Voltage Source Inverters , 2008, IEEE Transactions on Power Electronics.

[13]  Yuan Li,et al.  Modeling and Control of Quasi-Z-Source Inverter for Distributed Generation Applications , 2013, IEEE Transactions on Industrial Electronics.

[14]  Baoming Ge,et al.  An Energy-Stored Quasi-Z-Source Inverter for Application to Photovoltaic Power System , 2013, IEEE Transactions on Industrial Electronics.

[15]  Yuan Li,et al.  Quasi-Z-Source Inverter-Based Photovoltaic Generation System With Maximum Power Tracking Control Using ANFIS , 2013, IEEE Transactions on Sustainable Energy.

[16]  Ayman S. Abdel-Khalik,et al.  A Pulsewidth Modulation Technique for High-Voltage Gain Operation of Three-Phase Z-Source Inverters , 2016, IEEE Journal of Emerging and Selected Topics in Power Electronics.

[17]  Jonathan W. Kimball,et al.  Reducing Common-Mode Voltage in Three-Phase Sine-Triangle PWM With Interleaved Carriers , 2010, IEEE Transactions on Power Electronics.

[18]  Xing Zhang,et al.  A Model Predictive Control-Based Common-Mode Voltage Suppression Strategy for Voltage-Source Inverter , 2016, IEEE Transactions on Industrial Electronics.

[19]  Ahmet M. Hava,et al.  Common-Mode Voltage Reduction Pulsewidth Modulation Techniques for Three-Phase Grid-Connected Converters , 2013, IEEE Transactions on Power Electronics.

[20]  Yunjie Gu,et al.  Improved Transformerless Inverter With Common-Mode Leakage Current Elimination for a Photovoltaic Grid-Connected Power System , 2012, IEEE Transactions on Power Electronics.

[21]  Robert S. Balog,et al.  Model Predictive Control of Quasi-Z-Source Four-Leg Inverter , 2016, IEEE Transactions on Industrial Electronics.

[22]  Huan Zhao,et al.  Review on pulse-width modulation strategies for common-mode voltage reduction in three-phase voltage-source inverters , 2016 .

[23]  A.M. Hava,et al.  Performance Analysis of Reduced Common-Mode Voltage PWM Methods and Comparison With Standard PWM Methods for Three-Phase Voltage-Source Inverters , 2009, IEEE Transactions on Power Electronics.

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

[25]  T. Lipo,et al.  Elimination of common mode voltage in three phase sinusoidal power converters , 1996, PESC Record. 27th Annual IEEE Power Electronics Specialists Conference.

[26]  Rae-Young Kim,et al.  Suppression of Common-Mode Voltage Using a Multicentral Photovoltaic Inverter Topology With Synchronized PWM , 2014, IEEE Transactions on Industrial Electronics.

[27]  Wooi Ping Hew,et al.  Modulation Techniques to Reduce Leakage Current in Three-Phase Transformerless H7 Photovoltaic Inverter , 2015, IEEE Transactions on Industrial Electronics.

[28]  Baoming Ge,et al.  Comprehensive Modeling of Single-Phase Quasi-Z-Source Photovoltaic Inverter to Investigate Low-Frequency Voltage and Current Ripple , 2015, IEEE Transactions on Industrial Electronics.

[29]  Baoming Ge,et al.  An Active Filter Method to Eliminate DC-Side Low-Frequency Power for a Single-Phase Quasi-Z-Source Inverter , 2016, IEEE Transactions on Industrial Electronics.

[30]  Xiangning He,et al.  Hybrid Ultracapacitor–Battery Energy Storage System Based on Quasi-Z-source Topology and Enhanced Frequency Dividing Coordinated Control for EV , 2016, IEEE Transactions on Power Electronics.

[31]  Mustafa Hadi Sarul,et al.  A novel reduced leakage current modulation technique for Z-source inverter used in photovoltaic systems , 2014 .

[32]  Baoming Ge,et al.  An active filter method to eliminate dc-side low-frequency power for single-phase quasi-Z source inverter , 2015, 2015 IEEE Applied Power Electronics Conference and Exposition (APEC).

[33]  Saad Mekhilef,et al.  Extended maximum boost control scheme based on single-phase modulator for three-phase Z-source inverter , 2016 .

[34]  Harish S. Krishnamoorthy,et al.  A Fault-Tolerant Three-Phase Adjustable Speed Drive Topology With Active Common-Mode Voltage Suppression , 2015, IEEE Transactions on Power Electronics.

[35]  Shaojun Xie,et al.  Pulsewidth Modulation of Z-Source Inverters With Minimum Inductor Current Ripple , 2014, IEEE Transactions on Industrial Electronics.

[36]  Haitham Abu-Rub,et al.  Modelling and controller design of quasi-Z-source inverter with battery-based photovoltaic power system , 2014 .

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

[38]  Peter Zacharias,et al.  A Single-Stage PV Module Integrated Converter Based on a Low-Power Current-Source Inverter , 2008, IEEE Transactions on Industrial Electronics.