Control of a Bidirectional Z-Source Inverter for Electric Vehicle Applications in Different Operation Modes

This paper proposes two control strategies for the bidirectional Z-source inverters (BZSI) supplied by batteries for electric vehicle applications. The first control strategy utilizes the indirect field-oriented control (IFOC) method to control the induction motor speed. The proposed speed control strategy is able to control the motor speed from zero to the rated speed with the rated load torque in both motoring and regenerative braking modes. The IFOC is based on PWM voltage modulation with voltage decoupling compensation to insert the shoot-through state into the switching signals using the simple boost shoot-through control method. The parameters of the four PI controllers in the IFOC technique are designed based on the required dynamic specifications. The second control strategy uses a proportional plus resonance (PR) controller in the synchronous reference frame to control the AC current for connecting the BZSI to the grid during the battery charging/discharging mode. In both control strategies, a dual loop controller is proposed to control the capacitor voltage of the BZSI. This controller is designed based on a small signal model of the BZSI using a bode diagram. MATLAB simulations and experimental results verify the validity of the proposed control strategies during motoring, regenerative braking and grid connection operations.

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

[2]  Abderrahmane Bouhenna,et al.  Powerful nonlinear observer associated with field-oriented control of an induction motor , 2004 .

[3]  Shaojun Xie,et al.  A new direct peak dc-link voltage control strategy of Z-source inverters , 2010, 2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[4]  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.

[5]  Demba Diallo,et al.  Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study , 2005, IEEE Transactions on Vehicular Technology.

[6]  Benjamin Kroposki,et al.  A review of power electronics interfaces for distributed energy systems towards achieving low-cost modular design , 2009 .

[7]  Ayman Saber Elwer,et al.  A Novel Technique for Tuning PI-Controllers in Induction Motor Drive Systems for Electric Vehicle Applications , 2006 .

[8]  Zhaoming Qian,et al.  A new feedforward compensation to reject Dc-link voltage ripple in bi-directional Z-Source inverter ASD system , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

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

[10]  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.

[11]  Shao Zhang,et al.  Design of a Robust Grid Interface System for PMSG-Based Wind Turbine Generators , 2011, IEEE Transactions on Industrial Electronics.

[12]  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..

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

[14]  Mustafa Mohamadian,et al.  Hybrid Electric Vehicle Based on Bidirectional Z-Source Nine-Switch Inverter , 2010, IEEE Transactions on Vehicular Technology.

[15]  Hirotaka Koizumi,et al.  A bi-directional Z-source inverter for electric vehicles , 2009, 2009 International Conference on Power Electronics and Drive Systems (PEDS).

[16]  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.

[17]  Mohammad Abdul Mannan,et al.  Indirect field oriented control for high performance induction motor drives using space vector modulation with consideration of core loss , 2003, IEEE 34th Annual Conference on Power Electronics Specialist, 2003. PESC '03..

[18]  Kashif Ishaque,et al.  Accurate MATLAB Simulink PV System Simulator Based on a Two-Diode Model , 2011 .

[19]  S. Krithiga,et al.  A new adjustable-speed drives (ASD) system based on high-performance Z-source inverter , 2011, 2011 1st International Conference on Electrical Energy Systems.

[20]  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.

[21]  M. Kamli,et al.  DIRECT FIELD-ORIENTED CONTROL USING BACKSTEPPING STRATEGY WITH FUZZY ROTOR RESISTANCE ESTIMATOR FOR INDUCTION MOTOR SPEED CONTROL , 2006 .

[22]  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.

[23]  Fang Zheng Peng,et al.  Converter systems for hybrid electric vehicles , 2007, 2007 International Conference on Electrical Machines and Systems (ICEMS).

[24]  F.Z. Peng,et al.  Analysis and design of Bi-directional Z-source inverter for electrical vehicles , 2008, 2008 Twenty-Third Annual IEEE Applied Power Electronics Conference and Exposition.

[25]  S. Thangaprakash,et al.  Current Mode Integrated Control Technique for Z-Source Inverter Fed Induction Motor Drives , 2010 .

[26]  Heung-Geun Kim,et al.  Power Conditioning System for a Grid Connected PV Power Generation Using a Quasi-Z-Source Inverter , 2010 .