A DSP-Based Dual-Loop Peak DC-link Voltage Control Strategy of the Z-Source Inverter

This paper proposes a direct dual-loop peak dc-link voltage control strategy, with outer voltage loop and inner current loop, of the Z-source inverter (ZSI). The peak dc-link voltage is estimated by measuring both the input and capacitor voltages. With this proposed technique, a high-performance output voltage control can be achieved with an excellent transient performance including input voltage and load current variations with minimized nonminimum phase characteristics caused by the right half-plane zero in the control to peak dc-link voltage transfer function. Both controllers are designed based on a third-order small-signal model of the ZSI using the direct digital control method. The performance of the proposed control strategy is verified by simulation and experimental results of a 30-kW ZSI prototype.

[1]  F.Z. Peng,et al.  Modeling and Controller Design of the Z-Source Inverter with Inductive Load , 2007, 2007 IEEE Power Electronics Specialists Conference.

[2]  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.

[3]  Fan Zhang,et al.  Unified control technique for Z-Source inverter , 2008, 2008 IEEE Power Electronics Specialists Conference.

[4]  V Mummadi,et al.  Design of Robust Digital PID Controller for H-Bridge Soft-Switching Boost Converter , 2011, IEEE Transactions on Industrial Electronics.

[5]  Joeri Van Mierlo,et al.  Experimental Study of the Shoot-Through Boost Control Methods for the Z-Source Inverter , 2011 .

[6]  F. Blaabjerg,et al.  Model predictive control for Z-source power converter , 2011, 8th International Conference on Power Electronics - ECCE Asia.

[7]  Fang Zheng Peng,et al.  Operation modes and characteristics of the Z-source inverter with small inductance , 2005, Fourtieth IAS Annual Meeting. Conference Record of the 2005 Industry Applications Conference, 2005..

[8]  H. Rostami,et al.  Neural networks controlling for both the DC boost and AC output voltage of Z-source inverter , 2010, 2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC).

[9]  F.Z. Peng,et al.  Maximum boost control of the Z-source inverter , 2004, 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551).

[10]  Gooi Hoay Beng,et al.  Extended-Boost $Z$-Source Inverters , 2009, IEEE Transactions on Power Electronics.

[11]  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.

[12]  Zhaoming Qian,et al.  A Direct Peak DC-link Boost Voltage Control Strategy in Z-Source Inverter , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[13]  Jin Wang,et al.  Constant boost control of the Z-source inverter to minimize current ripple and voltage stress , 2006, IEEE Transactions on Industry Applications.

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

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

[16]  Tae-Won Chun,et al.  Minimization of Voltage Stress across Switching Devices in the Z-Source Inverter by Capacitor Voltage Control , 2009 .

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

[18]  M. J. Rastegar Fatemi,et al.  Wide-range control of output voltage in Z-source inverter by neural network , 2008, 2008 International Conference on Electrical Machines and Systems.

[19]  Joeri Van Mierlo,et al.  Comparison between different PWM control methods for different Z-source inverter topologies , 2009, 2009 13th European Conference on Power Electronics and Applications.

[20]  Zuo Zhi-peng.  Switched-inductor Quasi-Z-source Inverter , 2012 .

[21]  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.

[22]  Kai Zenger,et al.  Small-signal modeling of switched-mode converters - A unified approach , 2002 .

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

[24]  A. Emadi,et al.  Sliding-mode control of z-source inverter , 2008, 2008 34th Annual Conference of IEEE Industrial Electronics.

[25]  Zhaoming Qian,et al.  A PID Control Strategy for DC-link Boost Voltage in Z-source Inverter , 2007, APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition.

[26]  Poh Chiang Loh,et al.  Pulse-width modulation of Z-source inverters , 2005, IEEE Transactions on Power Electronics.

[27]  Marian K. Kazimierczuk,et al.  Small-signal modeling of PWM Z-source converter by circuit-averaging technique , 2011, 2011 IEEE International Symposium of Circuits and Systems (ISCAS).

[28]  Joeri Van Mierlo,et al.  Design and Implementation of a DSP Based Dual-Loop Capacitor Voltage Control of the Z-Source Inverter , 2011 .

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

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

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

[32]  Woon-Seng Gan,et al.  Rapid prototyping system for teaching real-time digital signal processing , 2000, IEEE Trans. Educ..

[33]  Brendan Peter McGrath,et al.  Dynamic Control of a 20kW Interleaved Boost Converter for Traction Applications , 2008, 2008 IEEE Industry Applications Society Annual Meeting.

[34]  Joeri Van Mierlo,et al.  A DSP-Based Dual Loop Digital Controller Design and Implementation of a High Power Boost Converter for Hybrid Electric Vehicles Applications , 2011 .

[35]  Zhaoming Qian,et al.  A direct DC-link boost voltage PID-like fuzzy control strategy in Z-source inverter , 2008, 2008 IEEE Power Electronics Specialists Conference.

[36]  Shaojun Xie,et al.  Feedforward plus feedback control of the improved Z-source inverter , 2009, 2009 IEEE Energy Conversion Congress and Exposition.