This paper proposes a design of control and estimation strategy for induction motor based on the variable structure approach. It describes a coupling of sliding mode direct torque control (DTC) with sliding mode flux and speed observer. This algorithm uses direct torque control basics and the sliding mode approach. A robust electromagnetic torque and flux controllers are designed to overcome the conventional SVM-DTC drawbacks and to ensure fast response and full reference tracking with desired dynamic behavior and low ripple level. The sliding mode controller is used to generate reference voltages in stationary frame and give them to the controlled motor after modulation by a space vector modulation (SVM) inverter. The second aim of this paper is to design a sliding mode speed/flux observer which can improve the control performances by using a sensorless algorithm to get an accurate estimation, and consequently, increase the reliability of the system and decrease the cost of using sensors. The effectiveness of the whole composed control algorithm is investigated in different robustness tests with simulation using Matlab/Simulink and verified by real time experimental implementation based on dS pace 1104 board.
. [J]. Frontiers in Energy, 2020, 14(4): 836-849.
Abdelkarim AMMAR, Amor BOUREK, Abdelhamid BENAKCHA. Robust SVM-direct torque control of induction motor based on sliding mode controller and sliding mode observer. Front. Energy, 2020, 14(4): 836-849.
D Casadei, F Profumo, A Tani. FOC and DTC: two viable schemes for induction motors torque control. IEEE Transactions on Power Electronics, 2002, 17(5): 779–787 https://doi.org/10.1109/TPEL.2002.802183
2
Y Ren, Z Zhu. Enhancement of steady-state performance in direct torque controlled dual-three phase permanent magnet synchronous machine drives with modified switching table. IEEE Transactions on Industrial Electronics, 2015, 62(6): 3338–3350
3
M Douiri, M Cherkaoui. Comparative study of various artificial intelligence approaches applied to direct torque control of induction motor drives. Frontiers in Energy, 2013, 7(4): 456–467 https://doi.org/10.1007/s11708-013-0264-8
4
I Alsofyani, N Idris. Simple flux regulation for improving state estimation at very low and zero speed of a speed sensorless direct torque control of an induction motor. IEEE Transactions on Power Electronics, 2016, 31(4): 3027–3035 https://doi.org/10.1109/TPEL.2015.2447731
5
M Hafeez, M Uddin, N Rahim, 0. Hew Wooi Ping. Self-Tuned NFC and adaptive torque hysteresis-based DTC scheme for IM drive. IEEE Transactions on Industry Applications, 2014, 50(2): 1410–1420 https://doi.org/10.1109/TIA.2013.2272031
6
C Lascu, I Boldea, F Blaabjerg. A modified direct torque control for induction motor sensorless drive. IEEE Transactions on Industry Applications, 2000, 36(1): 122–130 https://doi.org/10.1109/28.821806
7
T Habetler, F Profumo, M Pastorelli, L Tolbert. Direct torque control of induction machines using space vector modulation. IEEE Transactions on Industry Applications, 1992, 28(5): 1045–1053 https://doi.org/10.1109/28.158828
8
Y Kumsuwan, S Premrudeepreechacharn, H Toliyat. Modified direct torque control method for induction motor drives based on amplitude and angle control of stator flux. Electric Power Systems Research, 2008, 78(10): 1712–1718 https://doi.org/10.1016/j.epsr.2008.02.015
9
A Zaafouri, C Regaya, H Azza, A Châari. DSP-based adaptive back stepping using the tracking errors for high-performance sensorless speed control of induction motor drive. ISA Transactions, 2016, 60: 333–347 https://doi.org/10.1016/j.isatra.2015.11.021
10
Y Choi, H Choi, J Jung. Feedback linearization direct torque control with reduced torque and flux ripples for IPMSM drives. IEEE Transactions on Power Electronics, 2016, 31(5): 3728–3737 https://doi.org/10.1109/TPEL.2015.2460249
11
T Orlowska-Kowalska, G Tarchala, M Dybkowski. Sliding-mode direct torque control and sliding-mode observer with a magnetizing reactance estimator for the field-weakening of the induction motor drive. Mathematics and Computers in Simulation, 2014, 98: 31–45 https://doi.org/10.1016/j.matcom.2013.05.012
12
H Lee, J Lee. Design of iterative sliding mode observer for sensorless PMSM control. IEEE Transactions on Control Systems Technology, 2013, 21(4): 1394–1399 https://doi.org/10.1109/TCST.2012.2199493
13
V Utkin. Sliding mode control design principles and applications to electric drives. IEEE Transactions on Industrial Electronics, 1993, 40(1): 23–36 https://doi.org/10.1109/41.184818
14
C Lascu, I Boldea, F Blaabjerg. A class of speed-sensorless sliding-mode observers for high-performance induction motor drives. IEEE Transactions on Industrial Electronics, 2009, 56(9): 3394–3403 https://doi.org/10.1109/TIE.2009.2022518
15
R Yazdanpanah, J Soltani, G Arab Markadeh. Nonlinear torque and stator flux controller for induction motor drive based on adaptive input-output feedback linearization and sliding mode control. Energy Conversion and Management, 2008, 49(4): 541–550 https://doi.org/10.1016/j.enconman.2007.08.003
16
A Saghafinia, H Ping, M Uddin, K Gaeid. Adaptive fuzzy sliding-mode control into chattering-free IM drive. IEEE Transactions on Industry Applications, 2015, 51(1): 692–701 https://doi.org/10.1109/TIA.2014.2328711
17
C Lascu, I Boldea, F Blaabjerg. Direct torque control of sensorless induction motor drives: a sliding-mode approach. IEEE Transactions on Industry Applications, 2004, 40(2): 582–590 https://doi.org/10.1109/TIA.2004.824441
18
O Barambones, P Alkorta. Position control of the induction motor using an adaptive sliding-mode controller and observers. IEEE Transactions on Industrial Electronics, 2014, 61(12): 6556–6565 https://doi.org/10.1109/TIE.2014.2316239
19
Y Fan, L Zhang, M Cheng, K Chau. Sensorless SVPWM-FADTC of a new flux-modulated permanent-magnet wheel motor based on a wide-speed sliding mode observer. IEEE Transactions on Industrial Electronics, 2015, 62(5): 3143–3151 https://doi.org/10.1109/TIE.2014.2376879
20
A Ammar, A Bourek, A Benakcha. Modified load angle direct torque control for sensorless induction motor using sliding mode flux observer. In: 4th International Conference on Electrical Engineering (ICEE). Boumerdes, Algeria, 2015
21
A Hassan, A El-Sawy, Y Mohamed, E Shehata. Sensorless sliding mode torque control of an IPMSM drive based on active flux concept. Alexandria Engineering Journal, 2012, 51(1): 1–9 https://doi.org/10.1016/j.aej.2012.07.001
22
N Henini, L Nezli, A Tlemçani, M O Mahmoudi. Improved multi-machine multiphase electric vehicle drive system based on new SVPWM strategy and sliding mode-direct torque control. Nonlinear Dynamics and Systems Theory, 2011, 11(4): 425–438
23
M Yang, S Tang, D Xu. Comments on “Antiwindup strategy for PI-type speed controller”. IEEE Transactions on Industrial Electronics, 2015, 62(2): 1329–1332 https://doi.org/10.1109/TIE.2014.2363626