space vector modulation for induction motor drive
Research Journal of Applied Sciences, Engineering and Technology
Research Article
Digital Simulation of Space Vector Modulation Based Induction Motor Drive
K.Vijaya Bhaskar Reddy* , Research Scholar, Andhra University, waltair, A.P, India vijayabhaskarareddy.k@bvrit.ac.in, G.V. Siva Krishna Rao, Professor, Dept. of Electrical Engineering, Andhra University waltair, A.P, India, gvskrishna_rao@yahoo.com
T.S.Surendra ,Principal,Dept of Electrical and Electronics Engineering,BVRIT,Narsapur,Medak,AP,India,surendra.ts@gmail.com
Abstract- This paper deals with simulation of Space vector modulated inverter fed induction motor drive. The drive system is modeled using matlab simulink and the results are presented. This drive has advantages like reduced harmonics and heating. Fixed AC is converted into DC and this DC is converted into variable voltage and variable frequency AC using SVM inverter. The output of SVM is applied to the stator of induction motor. The simulation results are compared with the analytical results. The FFT analysis shows that the current spectrum has reduced harmonics compared to the conventional system.
Keywords: Induction motor, MATLAB, SVM, VSI
Introduction
Like most motors, an AC induction motor has a fixed outer portion, called the stator and a rotor that spins inside with a carefully engineered air gap between the two. Virtually all electrical motors use magnetic field rotation to spin their rotors. A three-phase AC induction motor is the only type where the rotating magnetic field is created naturally in the stator because of the nature of the supply. DC motors depend either on mechanical or electronic commutation to create rotating magnetic fields. There is no direct approach to have the controlled outputs from the commanded inputs. So it is necessary to generate equivalents of the inputs for the output control. This is achieved by three-phase to two-phase transformation where the output equivalent
Research Article
Digital Simulation of Space Vector Modulation Based Induction Motor Drive
K.Vijaya Bhaskar Reddy* , Research Scholar, Andhra University, waltair, A.P, India vijayabhaskarareddy.k@bvrit.ac.in, G.V. Siva Krishna Rao, Professor, Dept. of Electrical Engineering, Andhra University waltair, A.P, India, gvskrishna_rao@yahoo.com
T.S.Surendra ,Principal,Dept of Electrical and Electronics Engineering,BVRIT,Narsapur,Medak,AP,India,surendra.ts@gmail.com
Abstract- This paper deals with simulation of Space vector modulated inverter fed induction motor drive. The drive system is modeled using matlab simulink and the results are presented. This drive has advantages like reduced harmonics and heating. Fixed AC is converted into DC and this DC is converted into variable voltage and variable frequency AC using SVM inverter. The output of SVM is applied to the stator of induction motor. The simulation results are compared with the analytical results. The FFT analysis shows that the current spectrum has reduced harmonics compared to the conventional system.
Keywords: Induction motor, MATLAB, SVM, VSI
Introduction
Like most motors, an AC induction motor has a fixed outer portion, called the stator and a rotor that spins inside with a carefully engineered air gap between the two. Virtually all electrical motors use magnetic field rotation to spin their rotors. A three-phase AC induction motor is the only type where the rotating magnetic field is created naturally in the stator because of the nature of the supply. DC motors depend either on mechanical or electronic commutation to create rotating magnetic fields. There is no direct approach to have the controlled outputs from the commanded inputs. So it is necessary to generate equivalents of the inputs for the output control. This is achieved by three-phase to two-phase transformation where the output equivalent
References: [3] S.Chakrabarti, M. Ramamoorthy and V.R.Kanetkar, 1997, “Reduction of Torque Ripple in Direct Torque Control of Induction Motor Drives Using Space Vector Modulation Based Pulse Width Modulation” Proceedings of IEEE Transactions,7803-3773-5/97. [4] Ebenezer V., K.Gopakumar and V.T.Ranganathan, 1998, “A Sensorless Vector Control Scheme for Induction Motors using a Space Phasor based Current Hysteresis Controller”, proceedings of IEEE Transactions, 26-31.