On Dynamic Models and Stability Analysis of Three-Phase Phasor PWM-Based CSI for Stand-Alone Applications

The phasor-PWM-based current source inverter (CSI) is a boost inverter. The difference between conventional CSIs and the boost inverter is that the boost ratio (VLLrms/Vdc) in the boost inverter can easily be above 3.0, whereas this ratio is around 1 in conventional CSIs. In order to realize the potential capabilities of the boost inverter and to assist its penetration into renewable energy systems, the boost inverter dynamic behaviors are studied in this paper. First, the large- and small-signal models as well as the dq-equivalent circuits of the boost inverter are presented. Then, the developed models are verified using circuit simulations and experiments on a laboratory-scale 2-kW 208/240-VLLrmsVdc = 65 V boost inverter made of reverse-blocking IGBTs. Finally, the developed small-signal model is used to study the stability of the boost inverter through root locus of small signal poles (eigenvalues) as control inputs, and load parameters vary within the boost inverter's operating limits.

[1]  Bin Wu,et al.  Resonance Damping and Harmonic Suppression for Grid-Connected Current-Source Converter , 2014, IEEE Transactions on Industrial Electronics.

[2]  B. G. Fernandes,et al.  Transformer-Less Grid Feeding Current Source Inverter for Solar Photovoltaic System , 2014, IEEE Transactions on Industrial Electronics.

[3]  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.

[4]  J. M. Noworolski,et al.  Generalized averaging method for power conversion circuits , 1990, 21st Annual IEEE Conference on Power Electronics Specialists.

[5]  Mehrdad Kazerani,et al.  Linearly controllable boost voltages from Tri-Level PWM current-source inverter , 1995, IEEE Trans. Ind. Electron..

[6]  Bin Wu,et al.  DC link current minimization for high power current source motor drives , 2008, 2008 IEEE Power Electronics Specialists Conference.

[7]  Ali Davoudi,et al.  Alternative Time-Invariant Multi-Frequency Modeling of PWM DC-DC Converters , 2013, IEEE Transactions on Circuits and Systems I: Regular Papers.

[8]  R. M. Bass,et al.  On the use of averaging for the analysis of power electronic systems , 1989, 20th Annual IEEE Power Electronics Specialists Conference.

[9]  Bin Wu,et al.  A Current-Source-Converter-Based High-Power High-Speed PMSM Drive With 420-Hz Switching Frequency , 2012, IEEE Transactions on Industrial Electronics.

[10]  P. T. Krein,et al.  Differential Power Processing for Increased Energy Production and Reliability of Photovoltaic Systems , 2013, IEEE Transactions on Power Electronics.

[11]  Yun Wei Li,et al.  Virtual impedance based selective harmonic compensation (VI-SHC) PWM for current source rectifiers , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[12]  K. L. Lian,et al.  Derivation of a Small-Signal Harmonic Model for Closed-Loop Power Converters Based on the State-Variable Sensitivity Method , 2012, IEEE Transactions on Circuits and Systems I: Regular Papers.

[13]  D. Boroyevich,et al.  Average Modeling and Control Design for VIENNA-Type Rectifiers Considering the DC-Link Voltage Balance , 2009, IEEE Transactions on Power Electronics.

[14]  María Inés Valla,et al.  Multilevel Current-Source Inverter With FPGA Control , 2013, IEEE Transactions on Industrial Electronics.

[15]  Li Zhang,et al.  An Efficient Partial Power Processing DC/DC Converter for Distributed PV Architectures , 2014, IEEE Transactions on Power Electronics.

[16]  B Mirafzal,et al.  An SVPWM-Based Switching Pattern for Stand-Alone and Grid-Connected Three-Phase Single-Stage Boost Inverters , 2011, IEEE Transactions on Power Electronics.

[17]  B. W. Williams,et al.  Improved Sensorless Operation of a CSI-Based Induction Motor Drive: Long Feeder Case , 2013, IEEE Transactions on Power Electronics.

[18]  Ali Kashefi Kaviani.  Dynamic modeling and analysis of single-stage boost inverters under normal and abnormal conditions , 2012 .

[19]  Dushan Boroyevich,et al.  Novel reduced-order small-signal model of a three-phase PWM rectifier and its application in control design and system analysis , 1996 .

[20]  Yang Chen,et al.  Three-Phase Boost-Type Grid-Connected Inverter , 2008, IEEE Transactions on Power Electronics.

[21]  Zeliang Shu,et al.  Voltage Balancing Approaches for Diode-Clamped Multilevel Converters Using Auxiliary Capacitor-Based Circuits , 2013, IEEE Transactions on Power Electronics.

[22]  Sungho Jung,et al.  A Current Controller Design for Current Source Inverter-Fed AC Machine Drive System , 2013, IEEE Transactions on Power Electronics.

[23]  Frede Blaabjerg,et al.  Using reverse blocking IGBTs in power converters for adjustable speed drives , 2003 .

[24]  Dariusz Czarkowski,et al.  Modeling and Digital Control of a Phase-Controlled Series–Parallel Resonant Converter , 2007, IEEE Transactions on Industrial Electronics.

[25]  Hector Sarnago,et al.  Modulation Scheme for Improved Operation of an RB-IGBT-Based Resonant Inverter Applied to Domestic Induction Heating , 2013, IEEE Transactions on Industrial Electronics.