Direct Torque Control of Induction Motor Drive Fed from a Photovoltaic Multilevel Inverter

This paper presents Direct Torque Control (DTC) using Space Vector Modulation (SVM) for an induction motor drive fed from a photovoltaic multilevel inverter (PV-MLI). The system consists of two main parts PV DC power supply (PVDC) and MLI. The PVDC is used to generate DC isolated sources with certain ratios suitable for the adopted MLI. Beside the hardware system, the control system which uses the torque and speed estimation to control the load angle and to obtain the appropriate flux vector trajectory from which the voltage vector is directly derived based on direct torque control methods. The voltage vector is then generated by a hybrid multilevel inverter by employing space vector modulation (SVM). The inverter high quality output voltage which leads to a high quality IM performances. Besides, the MLI switching losses is very low due to most of the power cell switches are operating at nearly fundamental frequency. Some selected simulation results are presented for system validation.

[1]  Jebin Francis,et al.  Simulation of Direct Torque Controlled InductionMotor Drive by using Space Vector Pulse WidthModulation for Torque Ripple Reduction , 2013 .

[2]  Saad Mekhilef,et al.  Three-phase hybrid multilevel inverter with less power electronic components using space vector modulation , 2014 .

[3]  A. Tani,et al.  FOC and DTC: two viable schemes for induction motors torque control , 2002 .

[4]  Yousry Atia.  Torque Ripple Minimization for Induction Motor Driven by a Photovoltaic Inverter , 2009 .

[5]  P.T. Krein,et al.  Formal Derivation of Direct Torque Control for Induction Machines , 2006, IEEE Transactions on Power Electronics.

[6]  Omar Abdel-Rahim,et al.  High gain single-stage inverter for photovoltaic AC modules , 2011, 2011 Twenty-Sixth Annual IEEE Applied Power Electronics Conference and Exposition (APEC).

[7]  Juan Dixon,et al.  High-Frequency Link: A Solution for Using Only One DC Source in Asymmetric Cascaded Multilevel Inverters , 2011, IEEE Transactions on Industrial Electronics.

[8]  H. F. Abdul Wahab,et al.  Simulink Model of Direct Torque Control of Induction Machine , 2008 .

[9]  Abdesselam Chikhi,et al.  A Comparative Study of Field-Oriented Control and Direct-Torque Control of Induction Motors Using An Adaptive Flux Observer , 2010 .

[10]  A. Kumar,et al.  Power balanced cascaded multilevel inverter fed scalar controlled induction motor pump sourced from photovoltaic source , 2012, 2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES).

[11]  Andreas Steimel,et al.  Direct self control of induction machines fed by a double three-level inverter , 1997, IEEE Trans. Ind. Electron..

[12]  Mohamed Orabi,et al.  Development of high gain and efficiency photovoltaic system using multilevel boost converter topology , 2010, The 2nd International Symposium on Power Electronics for Distributed Generation Systems.

[13]  M. Vasudevan,et al.  High - Performance Adaptive Intelligent Direct Torque Control Schemes for Induction Motor Drives , 2005 .

[14]  Saad Mekhilef,et al.  Dual Vector Control Strategy for a Three-Stage Hybrid Cascaded Multilevel Inverter , 2010 .

[15]  Saad Mekhilef,et al.  Voltage vector control of a hybrid three-stage 18-level inverter by vector decomposition , 2010 .

[16]  M. Abdur Razzak,et al.  Induction motor drive system using Push-Pull converter and three-phase SPWM inverter fed from solar photovoltaic panel , 2014, 2014 POWER AND ENERGY SYSTEMS: TOWARDS SUSTAINABLE ENERGY.